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Low rectal resection with transanal total mesorectal excision (TaTME) performed with standard laparoscopic instrumentation
This is the case of a 62-year-old woman with rectal bleeding. She underwent a colonoscopy which showed a low rectal adenocarcinoma, 6cm from the anal margin. A CT-scan revealed the absence of metastasis and pelvic MRI showed a cT3N1 tumor.
The patient was treated with neoadjuvant radiochemotherapy. She received 50 Gray and capecitabine after which a new MRI showed a partial tumor response. The patient underwent surgery 10 weeks after finishing neoadjuvant therapy.
We started the operation with a laparoscopic abdominal approach. Four ports were placed. Two 10mm ports were introduced in the umbilicus and the right iliac fossa. Two 5mm ports were inserted in the left and right lower quadrant. Transanal total mesorectal excision (TaTME) was performed with a 5mm, 30-degree scope, monopolar hook, and bipolar forceps. The rectum was dissected 1cm distally from the neoplasia. The specimen was extracted transanally. Anastomosis was carried out transanally using a 33mm EEA™ circular stapler, after examination of the frozen section margin. A protective ileostomy was performed through the 10mm port site in the right iliac fossa and a drainage was put in place in the pelvis through the 5mm port entry site into the left flank.
The patient resumed food intake on postoperative day 2 and she was discharged on postoperative day 7. A complete mesorectal excision was confirmed on pathological examination. Fifteen negative nodes were removed. Distal and circumferential margins were negative.
The coloanal anastomosis was controlled with colonoscopy one month later. No sign of leakage was detected, and the ileostomy was subsequently closed.
The patient reports an adequate continence to gas and feces with one or two bowel movements per day. After 15 months of follow-up, the patient is still disease-free.
Our video shows that TaTME is a technique which can be performed by surgeons who have experience in laparoscopic and colorectal surgery.
In our operation, we did not use any energy devices, 3D or 4K technology. This procedure can be performed without expensive equipment.
L Taglietti, G Baronio, L Lussardi, R Cazzaniga, S Dester, A Zanoletti
Surgical intervention
2 months ago
1209 views
2 likes
1 comment
09:56
Low rectal resection with transanal total mesorectal excision (TaTME) performed with standard laparoscopic instrumentation
This is the case of a 62-year-old woman with rectal bleeding. She underwent a colonoscopy which showed a low rectal adenocarcinoma, 6cm from the anal margin. A CT-scan revealed the absence of metastasis and pelvic MRI showed a cT3N1 tumor.
The patient was treated with neoadjuvant radiochemotherapy. She received 50 Gray and capecitabine after which a new MRI showed a partial tumor response. The patient underwent surgery 10 weeks after finishing neoadjuvant therapy.
We started the operation with a laparoscopic abdominal approach. Four ports were placed. Two 10mm ports were introduced in the umbilicus and the right iliac fossa. Two 5mm ports were inserted in the left and right lower quadrant. Transanal total mesorectal excision (TaTME) was performed with a 5mm, 30-degree scope, monopolar hook, and bipolar forceps. The rectum was dissected 1cm distally from the neoplasia. The specimen was extracted transanally. Anastomosis was carried out transanally using a 33mm EEA™ circular stapler, after examination of the frozen section margin. A protective ileostomy was performed through the 10mm port site in the right iliac fossa and a drainage was put in place in the pelvis through the 5mm port entry site into the left flank.
The patient resumed food intake on postoperative day 2 and she was discharged on postoperative day 7. A complete mesorectal excision was confirmed on pathological examination. Fifteen negative nodes were removed. Distal and circumferential margins were negative.
The coloanal anastomosis was controlled with colonoscopy one month later. No sign of leakage was detected, and the ileostomy was subsequently closed.
The patient reports an adequate continence to gas and feces with one or two bowel movements per day. After 15 months of follow-up, the patient is still disease-free.
Our video shows that TaTME is a technique which can be performed by surgeons who have experience in laparoscopic and colorectal surgery.
In our operation, we did not use any energy devices, 3D or 4K technology. This procedure can be performed without expensive equipment.
Transanal minimally invasive surgery (TAMIS) for rectal cancer with transabdominal and transrectal ICG-guided sentinel node
Transanal minimally invasive surgery (TAMIS) for rectal cancer is gaining interest, with the objective of maximum sparing for physiological functions. Although this approach may be considered appropriate for treating stage T1m tumors, a large proportion of T1sm and T2 tumors could well benefit from this. The greatest limitation to the application of TAMIS is represented by the difficulty of obtaining an adequate lymph node sample of the mesorectum. The use of indocyanine green (ICG) has recently been suggested as a possible lymph node marker after peritumoral injection. The case described in this video presents an innovative proposal for the detection and removal of lymph nodes draining a tumor of the lower rectum, with the aim of obtaining an adequate lymph node staging. After endoscopic peritumoral ICG injection, we proceeded to the search and removal of sentinel lymph nodes both with a laparoscopic transabdominal approach and with a transrectal approach (after specimen removal). If validated in a prospective series, this technique could represent the best lymph node harvesting strategy during TAMIS for early stage rectal cancer.
G Baiocchi, R Nascimbeni, N Vettoretto, N de Manzini, M Morino
Surgical intervention
4 months ago
1483 views
3 likes
0 comments
09:24
Transanal minimally invasive surgery (TAMIS) for rectal cancer with transabdominal and transrectal ICG-guided sentinel node
Transanal minimally invasive surgery (TAMIS) for rectal cancer is gaining interest, with the objective of maximum sparing for physiological functions. Although this approach may be considered appropriate for treating stage T1m tumors, a large proportion of T1sm and T2 tumors could well benefit from this. The greatest limitation to the application of TAMIS is represented by the difficulty of obtaining an adequate lymph node sample of the mesorectum. The use of indocyanine green (ICG) has recently been suggested as a possible lymph node marker after peritumoral injection. The case described in this video presents an innovative proposal for the detection and removal of lymph nodes draining a tumor of the lower rectum, with the aim of obtaining an adequate lymph node staging. After endoscopic peritumoral ICG injection, we proceeded to the search and removal of sentinel lymph nodes both with a laparoscopic transabdominal approach and with a transrectal approach (after specimen removal). If validated in a prospective series, this technique could represent the best lymph node harvesting strategy during TAMIS for early stage rectal cancer.
Laparoscopic total mesorectal excision (TME) for rectal cancer: live procedure
This video of a live surgery performed by Professor Chen (Associate Professor, China Medical University Taichung, Taiwan) during an IRCAD Taiwan course very clearly demonstrates the stepwise execution of a laparoscopic total mesorectal excision (TME) with all its tips and tricks.
This is the case of a 65-year-old woman, with a low rectal tumor (4cm) is operated on after a short chemoradiation course (2 weeks before) for a stage IIA cancer (cT3N0M0).
Professor Chen’s surgical skills and experience and the beauty of the procedure, associated with a dynamic Q&A and expert comments coming from the auditorium, make of this video a must see.
WTL Chen, J Verde
Surgical intervention
2 months ago
1076 views
1 like
0 comments
47:24
Laparoscopic total mesorectal excision (TME) for rectal cancer: live procedure
This video of a live surgery performed by Professor Chen (Associate Professor, China Medical University Taichung, Taiwan) during an IRCAD Taiwan course very clearly demonstrates the stepwise execution of a laparoscopic total mesorectal excision (TME) with all its tips and tricks.
This is the case of a 65-year-old woman, with a low rectal tumor (4cm) is operated on after a short chemoradiation course (2 weeks before) for a stage IIA cancer (cT3N0M0).
Professor Chen’s surgical skills and experience and the beauty of the procedure, associated with a dynamic Q&A and expert comments coming from the auditorium, make of this video a must see.
Robotic triple docking ultralow anterior resection with intersphincteric resection and coloanal anastomosis
The da Vinci™ surgical robotic system with its increased instrument stability, magnified tridimensional view, and dexterity with 7 degrees of wristed motion of its instruments offers a distinct surgical advantage over traditional laparoscopic instruments. This is especially true in the deep pelvis, where the limited space and visibility make it extremely challenging to perform distal rectal dissection. Additionally, the complete control of the surgeon over the stable surgical platform allows fine and accurate dissection in this area.
For very low rectal tumors close to the anorectal junction, if a sphincter-saving procedure is to be attempted, surgeons will frequently perform an intersphincteric resection (ISR) with a handsewn coloanal anastomosis. If successful, the patient will be able to avoid an abdominoperineal resection and its resulting permanent stoma.
ISR is a technically challenging procedure to perform, especially in male and obese patients. It is because the approach to the intersphincteric plane from the abdominal approach is deep within the pelvis and frequently curves anteriorly, which makes the intersphincteric plane challenging to approach laparoscopically. In addition, ISR from the perineum is also difficult as the anus has a small opening; as a result, when the surgeon sits directly in front of the perineum, assistants will be unable to adequately visualize the operating field, making it very challenging to properly assist for the dissection. It may potentially result in some blind dissection, which may lead to entry into the wrong plane and a poor oncological specimen.
With the da Vinci™ surgical robotic system, this problem can potentially be minimized. First, via the transabdominal approach, the robotic system is able to access deep into the pelvic cavity and dissect down to the intersphincteric plane beyond the puborectalis sling. Secondly, docking the robot and approaching the ISR perineally, the robotic system can also provide a magnified vision, a fine dissection and allow the assistant a good viewing position sitting in front of the perineum to assist in a more productive manner. These advantages of the robotic system will facilitate ISR dissection and retrieval of a superior oncological specimen.
This video features a totally robotic triple docking approach for an ultralow anterior resection with intersphincteric resection and handsewn coloanal anastomosis in a male patient with a low rectal cancer.
SAE Yeo
Surgical intervention
9 months ago
1681 views
5 likes
0 comments
15:36
Robotic triple docking ultralow anterior resection with intersphincteric resection and coloanal anastomosis
The da Vinci™ surgical robotic system with its increased instrument stability, magnified tridimensional view, and dexterity with 7 degrees of wristed motion of its instruments offers a distinct surgical advantage over traditional laparoscopic instruments. This is especially true in the deep pelvis, where the limited space and visibility make it extremely challenging to perform distal rectal dissection. Additionally, the complete control of the surgeon over the stable surgical platform allows fine and accurate dissection in this area.
For very low rectal tumors close to the anorectal junction, if a sphincter-saving procedure is to be attempted, surgeons will frequently perform an intersphincteric resection (ISR) with a handsewn coloanal anastomosis. If successful, the patient will be able to avoid an abdominoperineal resection and its resulting permanent stoma.
ISR is a technically challenging procedure to perform, especially in male and obese patients. It is because the approach to the intersphincteric plane from the abdominal approach is deep within the pelvis and frequently curves anteriorly, which makes the intersphincteric plane challenging to approach laparoscopically. In addition, ISR from the perineum is also difficult as the anus has a small opening; as a result, when the surgeon sits directly in front of the perineum, assistants will be unable to adequately visualize the operating field, making it very challenging to properly assist for the dissection. It may potentially result in some blind dissection, which may lead to entry into the wrong plane and a poor oncological specimen.
With the da Vinci™ surgical robotic system, this problem can potentially be minimized. First, via the transabdominal approach, the robotic system is able to access deep into the pelvic cavity and dissect down to the intersphincteric plane beyond the puborectalis sling. Secondly, docking the robot and approaching the ISR perineally, the robotic system can also provide a magnified vision, a fine dissection and allow the assistant a good viewing position sitting in front of the perineum to assist in a more productive manner. These advantages of the robotic system will facilitate ISR dissection and retrieval of a superior oncological specimen.
This video features a totally robotic triple docking approach for an ultralow anterior resection with intersphincteric resection and handsewn coloanal anastomosis in a male patient with a low rectal cancer.
Robotic abdominoperineal resection (APR) with intraperitoneal puborectalis incision
The da Vinci™ surgical robotic system with its increased instrument stability, tridimensional view, and dexterity with 7 degrees of wristed motion offers a distinct surgical advantage over traditional laparoscopic instruments. This advantage is mainly in the deep pelvis where the limited working space and visibility makes distal rectal dissection extremely challenging. Additionally, the complete control of the surgeon over the stable surgical platform allows fine and accurate dissection in this area.

An abdominoperineal resection (APR) involves the excision of the rectum with a total mesorectal excision (TME), and excision of the anus with an adequate circumferential resection margin (CRM). In a conventional open or laparoscopic approach, the rectal dissection is performed down to the level of the pelvic floor, after which the perineal approach is used to excise the anus and to cut the pelvic floor muscles circumferentially to allow for ‘en bloc’ tumor removal. However, as the pelvic floor is frequently very deep from the skin surface, dissection is technically challenging due to poor visualization, often leading to blind dissection. As a result, many APR specimens suffer from the problem of “waisting” and a positive CRM at the level of the levator ani muscle. In order to solve this problem, some units practice extralevator APR – however, in those cases, the patient ends up with a large perineal defect which frequently needs to be closed with either mesh or flap reconstruction.
With the da Vinci™ robotic system, this problem can potentially be minimized. The robotic system can be used to access deep into the pelvic cavity and make an incision in the puborectalis sling down to the ischiorectal fat. This incision, once completed, allows for easy access from the perineal approach to enter the pelvic cavity and complete the dissection, preventing any blind dissection and facilitating a CRM-clear specimen to be excised.
This video features a totally robotic approach to an abdominoperineal resection for a poorly differentiated anorectal adenocarcinoma, with intraperitoneal incision of the puborectalis sling to facilitate subsequent perineal dissection and specimen extraction.

Clinical case
A 79-year-old female patient presented with a perianal lump and discomfort. Colonoscopy revealed a 2cm mobile adenomatous polypoid lesion at the anorectal junction. Excision biopsy showed a poorly differentiated adenocarcinoma.

CT-scan of the thorax, abdomen and pelvis did not show any distant metastases, and MRI of the rectum did not show any significant locoregional disease. A robotic abdominoperineal resection was performed.

Patient set-up
The da Vinci™ Si™ robotic system was used, and a dual docking approach was chosen.
The patient was placed in a Lloyd-Davies position. Robotic ports (8mm) were placed in the epigastrium, left flank, suprapubic region, and in the right iliac fossa respectively. A 12mm trocar is inserted into the right flank for assistance and stapling.
SAE Yeo
Surgical intervention
1 year ago
475 views
1 like
0 comments
11:27
Robotic abdominoperineal resection (APR) with intraperitoneal puborectalis incision
The da Vinci™ surgical robotic system with its increased instrument stability, tridimensional view, and dexterity with 7 degrees of wristed motion offers a distinct surgical advantage over traditional laparoscopic instruments. This advantage is mainly in the deep pelvis where the limited working space and visibility makes distal rectal dissection extremely challenging. Additionally, the complete control of the surgeon over the stable surgical platform allows fine and accurate dissection in this area.

An abdominoperineal resection (APR) involves the excision of the rectum with a total mesorectal excision (TME), and excision of the anus with an adequate circumferential resection margin (CRM). In a conventional open or laparoscopic approach, the rectal dissection is performed down to the level of the pelvic floor, after which the perineal approach is used to excise the anus and to cut the pelvic floor muscles circumferentially to allow for ‘en bloc’ tumor removal. However, as the pelvic floor is frequently very deep from the skin surface, dissection is technically challenging due to poor visualization, often leading to blind dissection. As a result, many APR specimens suffer from the problem of “waisting” and a positive CRM at the level of the levator ani muscle. In order to solve this problem, some units practice extralevator APR – however, in those cases, the patient ends up with a large perineal defect which frequently needs to be closed with either mesh or flap reconstruction.
With the da Vinci™ robotic system, this problem can potentially be minimized. The robotic system can be used to access deep into the pelvic cavity and make an incision in the puborectalis sling down to the ischiorectal fat. This incision, once completed, allows for easy access from the perineal approach to enter the pelvic cavity and complete the dissection, preventing any blind dissection and facilitating a CRM-clear specimen to be excised.
This video features a totally robotic approach to an abdominoperineal resection for a poorly differentiated anorectal adenocarcinoma, with intraperitoneal incision of the puborectalis sling to facilitate subsequent perineal dissection and specimen extraction.

Clinical case
A 79-year-old female patient presented with a perianal lump and discomfort. Colonoscopy revealed a 2cm mobile adenomatous polypoid lesion at the anorectal junction. Excision biopsy showed a poorly differentiated adenocarcinoma.

CT-scan of the thorax, abdomen and pelvis did not show any distant metastases, and MRI of the rectum did not show any significant locoregional disease. A robotic abdominoperineal resection was performed.

Patient set-up
The da Vinci™ Si™ robotic system was used, and a dual docking approach was chosen.
The patient was placed in a Lloyd-Davies position. Robotic ports (8mm) were placed in the epigastrium, left flank, suprapubic region, and in the right iliac fossa respectively. A 12mm trocar is inserted into the right flank for assistance and stapling.
Double transanal laparoscopic resection of large anal canal and low rectum polyps
Background: Rectal polyps, and especially small and medium-sized lesions are removed via conventional endoscopy. Large rectal polyps can be approached using endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD). In more recent years, laparoscopic surgery underwent an evolution and a new application for endoluminal resection called transanal minimally invasive surgery (TAMIS) was introduced. The authors report the case of a 79-year-old man presenting with two large polyps of the anal canal (uTisN0) and low rectum (uTis vs T1N0), which were removed through TAMIS.
Video: The patient was placed in a prone, jackknife position with legs apart. The reusable transanal D-Port was introduced into the anus. Exploration of the cavity showed the presence of a large polyp involving the entire length of the anal canal and part of the lower third of the rectum and a second large polyp located 1cm above in the lower third of the rectum. The anal canal polyp was removed with the preservation of the muscular layer. The lower third rectal polyp was removed by resecting the full-thickness of the rectal wall. During the entire procedure, the surgeon worked under satisfactory ergonomics. The polyps were removed through the D-Port. The mucosal and submucosal flaps for anal canal resection, as well as the entire rectal wall opening for low rectal resection, were closed by means of two converging absorbable sutures.
Results: Operative time was 78 minutes for the anal canal polyp and 53 minutes for the low rectum polyp. Perioperative bleeding was 10cc. The postoperative course was uneventful, and the patient was discharged after 1 day. The pathological report for both polyps showed a tubulovillous adenoma with high-grade dysplasia and free margins (stage: pTis, 8 UICC edition).
Conclusions: TAMIS for double and large polyps located in the anal canal and low rectum offers advantages, such as excellent field exposure, safe en bloc polypectomy, and final endoluminal defect closure.
G Dapri
Surgical intervention
1 year ago
1192 views
233 likes
0 comments
07:49
Double transanal laparoscopic resection of large anal canal and low rectum polyps
Background: Rectal polyps, and especially small and medium-sized lesions are removed via conventional endoscopy. Large rectal polyps can be approached using endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD). In more recent years, laparoscopic surgery underwent an evolution and a new application for endoluminal resection called transanal minimally invasive surgery (TAMIS) was introduced. The authors report the case of a 79-year-old man presenting with two large polyps of the anal canal (uTisN0) and low rectum (uTis vs T1N0), which were removed through TAMIS.
Video: The patient was placed in a prone, jackknife position with legs apart. The reusable transanal D-Port was introduced into the anus. Exploration of the cavity showed the presence of a large polyp involving the entire length of the anal canal and part of the lower third of the rectum and a second large polyp located 1cm above in the lower third of the rectum. The anal canal polyp was removed with the preservation of the muscular layer. The lower third rectal polyp was removed by resecting the full-thickness of the rectal wall. During the entire procedure, the surgeon worked under satisfactory ergonomics. The polyps were removed through the D-Port. The mucosal and submucosal flaps for anal canal resection, as well as the entire rectal wall opening for low rectal resection, were closed by means of two converging absorbable sutures.
Results: Operative time was 78 minutes for the anal canal polyp and 53 minutes for the low rectum polyp. Perioperative bleeding was 10cc. The postoperative course was uneventful, and the patient was discharged after 1 day. The pathological report for both polyps showed a tubulovillous adenoma with high-grade dysplasia and free margins (stage: pTis, 8 UICC edition).
Conclusions: TAMIS for double and large polyps located in the anal canal and low rectum offers advantages, such as excellent field exposure, safe en bloc polypectomy, and final endoluminal defect closure.
Laparoscopic rectal resection with ICG-guided nodal navigation
The concept of fluorescence-guided navigation surgery based on indocyanine green (ICG) testifies to a developing interest in many fields of surgical oncology. The technique seems to be promising, also during nodal dissection in gastric and colorectal surgery in the so-called “ICG-guided nodal navigation”.
In this video, we present the clinical case of a 66-year-old woman with a sigmoid-rectal junction early stage cancer submitted to laparoscopic resection. Before surgery, the patient was submitted to endoscopy with the objective to mark the distal margin of the neoplasia, and 2mL of ICG were injected into the mucosa of the rectum, 2cm distal to the inferior border of the tumor.
Thanks to the ICG’s fluorescence with the light emitted from the photodynamic eye of our laparoscopic system (Stryker 1588 camera system), it is possible to clearly visualize both the individual lymph nodes and the lymphatic collectors which drain ICG (and lymph) of the specific mucosal area previously marked with indocyanine green.
It was possible to verify the good perfusion of the proximal stump of the anastomosis before the Knight-Griffen anastomosis was performed, thanks to an intravenous injection of ICG.
This technique could allow for a more precise and radical nodal dissection, a safer work respecting vascular and nerve structures, and could be related with a lower risk of anastomotic fistula, controlling the adequate perfusion of the stump.
G Baiocchi, S Molfino, B Molteni, A Titi, G Gaverini
Surgical intervention
8 months ago
2883 views
5 likes
0 comments
11:48
Laparoscopic rectal resection with ICG-guided nodal navigation
The concept of fluorescence-guided navigation surgery based on indocyanine green (ICG) testifies to a developing interest in many fields of surgical oncology. The technique seems to be promising, also during nodal dissection in gastric and colorectal surgery in the so-called “ICG-guided nodal navigation”.
In this video, we present the clinical case of a 66-year-old woman with a sigmoid-rectal junction early stage cancer submitted to laparoscopic resection. Before surgery, the patient was submitted to endoscopy with the objective to mark the distal margin of the neoplasia, and 2mL of ICG were injected into the mucosa of the rectum, 2cm distal to the inferior border of the tumor.
Thanks to the ICG’s fluorescence with the light emitted from the photodynamic eye of our laparoscopic system (Stryker 1588 camera system), it is possible to clearly visualize both the individual lymph nodes and the lymphatic collectors which drain ICG (and lymph) of the specific mucosal area previously marked with indocyanine green.
It was possible to verify the good perfusion of the proximal stump of the anastomosis before the Knight-Griffen anastomosis was performed, thanks to an intravenous injection of ICG.
This technique could allow for a more precise and radical nodal dissection, a safer work respecting vascular and nerve structures, and could be related with a lower risk of anastomotic fistula, controlling the adequate perfusion of the stump.
Combined abdominal - transanal laparoscopic approach (taTME) for low rectal cancers
Objective: to describe the TaTME surgical technique for the treatment of low rectal cancers.
Methods: The procedure was performed in two phases: first, by an abdominal laparoscopic approach consisting in the high ligation of the inferior mesenteric artery and vein, and complete splenic flexure mobilization. The pelvic dissection was continued in the Total Mesorectal Excision (TME) plane to the level of the puborectal sling posteriorly and of the seminal vesicles anteriorly.
Secondly, the procedure continued by transanal laparoscopic approach: A Lone Star® retractor was placed prior to the platform insertion (Gelpoint Path®). Under direct vision of the tumor, a purse-string suture was performed to obtain a secure distal margin and a completed closure of the lumen. It is essential to achieve a complete circumferential full-thickness rectotomy before facing the dissection cranially via the TME plane. Both planes, transanal and abdominal, are connected by the two surgical teams. The specimen was then extracted through a suprapubic incision. A circular end-to-end stapled anastomosis was made intracorporeally. Finally, a loop ileostomy was performed.
Results: A 75-year-old man with low rectal cancer (uT3N1-Rullier’s I-II classification), was treated with neoadjuvant chemoradiotherapy and TaTME. Operative time was 240 minutes, including 90 minutes for the perineal phase. There were no postoperative complications and the patient was discharged on postoperative day 5. The pathology report showed a complete mesorectum excision and free margins (ypT1N1a).
Conclusions: The TaTME technique is a safe option for the treatment of low rectal cancers, especially in male patients with a narrow pelvis. It is a feasible and reproducible technique for surgeons with previous experience in advanced laparoscopic procedures and transanal surgery.
S Qian, P Tejedor, M Leon, M Ortega, C Pastor
Surgical intervention
8 months ago
3805 views
5 likes
0 comments
06:45
Combined abdominal - transanal laparoscopic approach (taTME) for low rectal cancers
Objective: to describe the TaTME surgical technique for the treatment of low rectal cancers.
Methods: The procedure was performed in two phases: first, by an abdominal laparoscopic approach consisting in the high ligation of the inferior mesenteric artery and vein, and complete splenic flexure mobilization. The pelvic dissection was continued in the Total Mesorectal Excision (TME) plane to the level of the puborectal sling posteriorly and of the seminal vesicles anteriorly.
Secondly, the procedure continued by transanal laparoscopic approach: A Lone Star® retractor was placed prior to the platform insertion (Gelpoint Path®). Under direct vision of the tumor, a purse-string suture was performed to obtain a secure distal margin and a completed closure of the lumen. It is essential to achieve a complete circumferential full-thickness rectotomy before facing the dissection cranially via the TME plane. Both planes, transanal and abdominal, are connected by the two surgical teams. The specimen was then extracted through a suprapubic incision. A circular end-to-end stapled anastomosis was made intracorporeally. Finally, a loop ileostomy was performed.
Results: A 75-year-old man with low rectal cancer (uT3N1-Rullier’s I-II classification), was treated with neoadjuvant chemoradiotherapy and TaTME. Operative time was 240 minutes, including 90 minutes for the perineal phase. There were no postoperative complications and the patient was discharged on postoperative day 5. The pathology report showed a complete mesorectum excision and free margins (ypT1N1a).
Conclusions: The TaTME technique is a safe option for the treatment of low rectal cancers, especially in male patients with a narrow pelvis. It is a feasible and reproducible technique for surgeons with previous experience in advanced laparoscopic procedures and transanal surgery.
Transanal minimally invasive full-thickness middle rectum polyp resection with the patient in a prone position
Background: Nowadays, rectal preservation has gained popularity when it comes to the management of degenerated rectal polyps or early rectal cancer (1, 2). Tis/T1 rectal lesions can be safely treated without chemoradiation (3). Treatment via transanal minimally invasive surgery (TAMIS) offers more advantages than endoscopic submucosal dissection (ESD) (4). The authors report the case of a 60-year-old woman who underwent a TAMIS procedure for a large polyp located anteriorly in the middle rectum, which was 7cm away from the pectineal line and staged as uTisN0M0 preoperatively.
Video: The patient was placed in a prone position with a split-leg kneeling position. A reusable transanal D-Port (Karl Storz Endoskope, Tuttlingen, Germany) was introduced into the anus together with DAPRI monocurved instruments (Figure 1). The polyp was put in evidence (Figure 2) and resection margins were defined circumferentially using the monocurved coagulating hook. A full-thickness resection was performed with a complete removal of the rectal serosa and exposure of the peritoneal cavity, due to the anatomical polyp positioning (Figure 3). The rectal opening was subsequently closed using two converging full-thickness running sutures using 3/0 V-loc™ sutures (Figure 4a). The two sutures were started laterally and joined together medially (Figure 4b).
Results: Total operative time was 60 minutes whereas suturing time was 35 minutes. There was no perioperative bleeding. The postoperative course was uneventful, and the patient was discharged after 2 days. The pathological report showed a tubular adenoma with high-grade dysplasia and clear margins.
Conclusions: In the presence of degenerated rectal polyps, full-thickness TAMIS is oncologically safe and feasible. The final rectal flap can be safely closed by means of laparoscopic endoluminal sutures.
G Dapri, L Qin Yi, A Wong, P Tan Enjiu, S Hsien Lin, D Lee, T Kok Yang, S Mantoo
Surgical intervention
1 year ago
902 views
196 likes
0 comments
05:53
Transanal minimally invasive full-thickness middle rectum polyp resection with the patient in a prone position
Background: Nowadays, rectal preservation has gained popularity when it comes to the management of degenerated rectal polyps or early rectal cancer (1, 2). Tis/T1 rectal lesions can be safely treated without chemoradiation (3). Treatment via transanal minimally invasive surgery (TAMIS) offers more advantages than endoscopic submucosal dissection (ESD) (4). The authors report the case of a 60-year-old woman who underwent a TAMIS procedure for a large polyp located anteriorly in the middle rectum, which was 7cm away from the pectineal line and staged as uTisN0M0 preoperatively.
Video: The patient was placed in a prone position with a split-leg kneeling position. A reusable transanal D-Port (Karl Storz Endoskope, Tuttlingen, Germany) was introduced into the anus together with DAPRI monocurved instruments (Figure 1). The polyp was put in evidence (Figure 2) and resection margins were defined circumferentially using the monocurved coagulating hook. A full-thickness resection was performed with a complete removal of the rectal serosa and exposure of the peritoneal cavity, due to the anatomical polyp positioning (Figure 3). The rectal opening was subsequently closed using two converging full-thickness running sutures using 3/0 V-loc™ sutures (Figure 4a). The two sutures were started laterally and joined together medially (Figure 4b).
Results: Total operative time was 60 minutes whereas suturing time was 35 minutes. There was no perioperative bleeding. The postoperative course was uneventful, and the patient was discharged after 2 days. The pathological report showed a tubular adenoma with high-grade dysplasia and clear margins.
Conclusions: In the presence of degenerated rectal polyps, full-thickness TAMIS is oncologically safe and feasible. The final rectal flap can be safely closed by means of laparoscopic endoluminal sutures.
Laparoscopic splenic flexure mobilization during low anterior resection (LAR), extra central connection between the superior and inferior mesenteric arterial systems
This is the case of two adult patients who presented with a low rectal carcinoma. A low anterior resection was performed laparoscopically. In both cases, the procedure was begun with a mobilization of the splenic flexure to ensure sufficient length on the proximal colonic segment to facilitate a tension-free low colorectal anastomosis. In the first case, a small aberrant artery, and during the second case, an aberrant artery of greater caliber can be appreciated. Anatomical studies report an extra central arterial connection between the superior and inferior mesenteric arterial systems in addition to the marginal artery of Drummond in 10 to 30% of cases. In such cases, there is an extra connection from the ascending branch of the left colic artery to the middle colic artery or the marginal artery of Drummond. Different names have been given to these connections, such as for example the meandering mesenteric artery, the artery of Moskovitch and Riolan’s arch.
A Wijsmuller, RJ Franken, JB Tuynman, J Bonjer
Surgical intervention
8 months ago
6035 views
26 likes
0 comments
19:46
Laparoscopic splenic flexure mobilization during low anterior resection (LAR), extra central connection between the superior and inferior mesenteric arterial systems
This is the case of two adult patients who presented with a low rectal carcinoma. A low anterior resection was performed laparoscopically. In both cases, the procedure was begun with a mobilization of the splenic flexure to ensure sufficient length on the proximal colonic segment to facilitate a tension-free low colorectal anastomosis. In the first case, a small aberrant artery, and during the second case, an aberrant artery of greater caliber can be appreciated. Anatomical studies report an extra central arterial connection between the superior and inferior mesenteric arterial systems in addition to the marginal artery of Drummond in 10 to 30% of cases. In such cases, there is an extra connection from the ascending branch of the left colic artery to the middle colic artery or the marginal artery of Drummond. Different names have been given to these connections, such as for example the meandering mesenteric artery, the artery of Moskovitch and Riolan’s arch.
LIVE INTERACTIVE SURGERY: robotic low anterior resection for a local recurrence of rectal cancer
In this live interactive surgery, Dr. Parra-Davila demonstrates a robotic low anterior resection for a local recurrence of transanally excised rectal cancer. The operative technique shown includes a robotic oncological ‘en bloc’ resection and intracorporeal anastomosis. In the patient’s history, an ulcerated villous polyp too large for endoscopic removal was addressed to surgery. Preoperative biopsies had failed to detect malignancy. The surgical procedure consisted in a transanal full-thickness resection including partial TME for lymph node sampling. Since the operative specimen revealed a pT2N1a (1/8) rectal adenocarcinoma, the patient underwent adjuvant radiochemotherapy. The following year, a single hepatic metastasis was resected, complemented by postoperative chemotherapy. After 7 years of uneventful follow-up, an anastomotic recurrence was diagnosed. Following oncologic committee discussion, the patient was advised to undergo surgery.
E Parra-Davila, M Ignat, L Soler, B Seeliger, D Mutter, J Marescaux
Surgical intervention
7 months ago
1430 views
2 likes
0 comments
32:48
LIVE INTERACTIVE SURGERY: robotic low anterior resection for a local recurrence of rectal cancer
In this live interactive surgery, Dr. Parra-Davila demonstrates a robotic low anterior resection for a local recurrence of transanally excised rectal cancer. The operative technique shown includes a robotic oncological ‘en bloc’ resection and intracorporeal anastomosis. In the patient’s history, an ulcerated villous polyp too large for endoscopic removal was addressed to surgery. Preoperative biopsies had failed to detect malignancy. The surgical procedure consisted in a transanal full-thickness resection including partial TME for lymph node sampling. Since the operative specimen revealed a pT2N1a (1/8) rectal adenocarcinoma, the patient underwent adjuvant radiochemotherapy. The following year, a single hepatic metastasis was resected, complemented by postoperative chemotherapy. After 7 years of uneventful follow-up, an anastomotic recurrence was diagnosed. Following oncologic committee discussion, the patient was advised to undergo surgery.
Pure transanal laparoscopic repair of early rectovaginal fistula
Background: Rectovaginal fistula is an abnormal connection between the rectum and the vagina, with leakage of rectal contents through the vagina. Different surgeries have been attempted such as direct repair, plug placement, advancement flap, muscle interposition, colostomy, proctectomy or delayed pull-through colo-anal anastomosis. Recently, transanal minimally invasive surgery has been described amongst the surgical options.

Video: The authors present a pure transanal laparoscopic repair of early rectovaginal fistula in a 74-year-old lady, submitted 3 weeks before to a laparoscopic anterior resection of the rectum with ‘en bloc’ hysterectomy for rectal adenocarcinoma (pT4aN0M0). A protective ileostomy was performed at the time of rectal surgery, and the postoperative course was uneventful. After having positioned the patient in a gynecologic position, a new reusable transanal platform according to DAPRI (Karl Storz Endoskope, Tuttlingen, Germany) was adopted. The exploration of the lower rectum put in evidence a 2cm rectovaginal fistula, located at a 3 o’clock position and at a 12cm distance from the anal margin. Absorbable figure-of-8 sutures using Vicryl 2/0 were performed to close the defect. Thanks to the curves of the instruments, the surgeon worked under ergonomic positions, without clashing of the instruments’ tips and any conflict of the surgeon’s hands. At the end of the procedure, injection of methylene blue through the vagina did not show any passage of the product into the lower rectum.

Results: The operative time was 120 minutes and intraoperative bleeding was insignificant. The postoperative course was uneventful, and patient discharge was allowed after 6 days. Due to the reusable nature of all the material implemented, no supplementary cost was necessary. The gastrograffin enema after 2 months showed a complete healing of the fistula. As a result, the protective ileostomy was closed.
Conclusion: Rectovaginal fistula can be repaired through a pure transanal laparoscopy, which prevents complicated and demolition surgeries usually performed through the abdomen.
G Dapri, M Degueldre
Surgical intervention
2 years ago
1367 views
96 likes
0 comments
04:58
Pure transanal laparoscopic repair of early rectovaginal fistula
Background: Rectovaginal fistula is an abnormal connection between the rectum and the vagina, with leakage of rectal contents through the vagina. Different surgeries have been attempted such as direct repair, plug placement, advancement flap, muscle interposition, colostomy, proctectomy or delayed pull-through colo-anal anastomosis. Recently, transanal minimally invasive surgery has been described amongst the surgical options.

Video: The authors present a pure transanal laparoscopic repair of early rectovaginal fistula in a 74-year-old lady, submitted 3 weeks before to a laparoscopic anterior resection of the rectum with ‘en bloc’ hysterectomy for rectal adenocarcinoma (pT4aN0M0). A protective ileostomy was performed at the time of rectal surgery, and the postoperative course was uneventful. After having positioned the patient in a gynecologic position, a new reusable transanal platform according to DAPRI (Karl Storz Endoskope, Tuttlingen, Germany) was adopted. The exploration of the lower rectum put in evidence a 2cm rectovaginal fistula, located at a 3 o’clock position and at a 12cm distance from the anal margin. Absorbable figure-of-8 sutures using Vicryl 2/0 were performed to close the defect. Thanks to the curves of the instruments, the surgeon worked under ergonomic positions, without clashing of the instruments’ tips and any conflict of the surgeon’s hands. At the end of the procedure, injection of methylene blue through the vagina did not show any passage of the product into the lower rectum.

Results: The operative time was 120 minutes and intraoperative bleeding was insignificant. The postoperative course was uneventful, and patient discharge was allowed after 6 days. Due to the reusable nature of all the material implemented, no supplementary cost was necessary. The gastrograffin enema after 2 months showed a complete healing of the fistula. As a result, the protective ileostomy was closed.
Conclusion: Rectovaginal fistula can be repaired through a pure transanal laparoscopy, which prevents complicated and demolition surgeries usually performed through the abdomen.
Transanal minimally invasive surgical anal canal polyp resection
Background: Endoscopic submucosal dissection (ESD) has been known for a long time. Recently, transanal minimally invasive surgery (TAMIS) started to be popularized and it can be used in front of difficult cases for ESD.

Video: A 36-year-old woman underwent a TAMIS resection, after unsuccessful ESD, for a 2cm polyp located anteriorly in the anal canal, just beside the pectineal line. Preoperative work-up showed a uT1m versus T1sm N0 M0 lesion. The patient was placed in a prone position with a split leg kneeling position. The procedure was performed with a new reusable transanal platform, a monocurved coagulating hook, and a grasping forceps. The mucosal flap was closed using two absorbable running sutures, a monocurved needle holder, and a grasping forceps.

Results: Operative time was 90 minutes, and perioperative bleeding was 20cc. No perioperative complications were noted, and the patient was discharged on postoperative day 1. Pathological findings showed a 2 by 1.3 by 0.5cm villotubular adenoma with high-grade dysplasia and free margins.

Conclusions: TAMIS anal canal polyp resection allows for a meticulous dissection under a magnified exposure of the operative field, with a final mucosal flap closure in adequate ergonomic conditions.
G Dapri
Surgical intervention
1 year ago
2093 views
103 likes
0 comments
05:13
Transanal minimally invasive surgical anal canal polyp resection
Background: Endoscopic submucosal dissection (ESD) has been known for a long time. Recently, transanal minimally invasive surgery (TAMIS) started to be popularized and it can be used in front of difficult cases for ESD.

Video: A 36-year-old woman underwent a TAMIS resection, after unsuccessful ESD, for a 2cm polyp located anteriorly in the anal canal, just beside the pectineal line. Preoperative work-up showed a uT1m versus T1sm N0 M0 lesion. The patient was placed in a prone position with a split leg kneeling position. The procedure was performed with a new reusable transanal platform, a monocurved coagulating hook, and a grasping forceps. The mucosal flap was closed using two absorbable running sutures, a monocurved needle holder, and a grasping forceps.

Results: Operative time was 90 minutes, and perioperative bleeding was 20cc. No perioperative complications were noted, and the patient was discharged on postoperative day 1. Pathological findings showed a 2 by 1.3 by 0.5cm villotubular adenoma with high-grade dysplasia and free margins.

Conclusions: TAMIS anal canal polyp resection allows for a meticulous dissection under a magnified exposure of the operative field, with a final mucosal flap closure in adequate ergonomic conditions.
Live interactive transanal TME (TaTME) with the TEO™ platform
Randomized clinical trials such as COLOR II, COREAN and CLASICC, have shown better results for laparoscopic total mesorectal excision (TME), in terms of short-term and long-term outcomes, when compared with open TME.
Laparoscopic TME presents some limitations such as low rectal cancer which has a high risk of leaving a positive circumferential resection margin (CRM) and a narrow pelvis. Conversion to open procedures remains unsatisfactory.
Transanal TME (taTME) has been proposed to give a new option in cases where laparoscopic TME is difficult.
In this video, we present the case of a transanal approach with the TEO™ platform for low rectal cancer.
A Melani, A D'Urso, D Mutter, J Marescaux
Surgical intervention
1 year ago
3597 views
324 likes
0 comments
45:51
Live interactive transanal TME (TaTME) with the TEO™ platform
Randomized clinical trials such as COLOR II, COREAN and CLASICC, have shown better results for laparoscopic total mesorectal excision (TME), in terms of short-term and long-term outcomes, when compared with open TME.
Laparoscopic TME presents some limitations such as low rectal cancer which has a high risk of leaving a positive circumferential resection margin (CRM) and a narrow pelvis. Conversion to open procedures remains unsatisfactory.
Transanal TME (taTME) has been proposed to give a new option in cases where laparoscopic TME is difficult.
In this video, we present the case of a transanal approach with the TEO™ platform for low rectal cancer.
The 3 approaches to splenic flexure mobilization
Background: The mobilization of the splenic flexure during laparoscopic colorectal surgery can be a challenge, especially in anatomically difficult patients. In this video, the inframesocolic, the supramesocolic, and lateral-to-medial approaches are demonstrated.

Video: The first part of the video shows the inframesocolic approach where the opening of the transverse mesocolon, above the pancreatic body and tail, allows access to the lesser sac and the exposure of the spleen. The second part of the video shows the supramesocolic approach where reaching Gerota’s fascia allows the flexure to be taken down. The third part of the video shows the lateral-to-medial approach where opening the lesser sac allows the flexure to be mobilized.

Results: All three approaches are laparoscopically feasible and safe. The goal remains similar, that is to avoid anastomotic tension. The operative time for this step, during the entire colorectal procedure, is influenced by the patient’s characteristics (previous surgery, high splenic flexure, short mesentery, etc.) and obviously, by the surgeon’s learning curve.

Conclusions: The choice between the three approaches depends on the patient’s characteristics and on the surgeon’s habits.
G Dapri, NA Bascombe, GB Cadière, J Marks
Surgical intervention
2 years ago
4662 views
345 likes
0 comments
11:51
The 3 approaches to splenic flexure mobilization
Background: The mobilization of the splenic flexure during laparoscopic colorectal surgery can be a challenge, especially in anatomically difficult patients. In this video, the inframesocolic, the supramesocolic, and lateral-to-medial approaches are demonstrated.

Video: The first part of the video shows the inframesocolic approach where the opening of the transverse mesocolon, above the pancreatic body and tail, allows access to the lesser sac and the exposure of the spleen. The second part of the video shows the supramesocolic approach where reaching Gerota’s fascia allows the flexure to be taken down. The third part of the video shows the lateral-to-medial approach where opening the lesser sac allows the flexure to be mobilized.

Results: All three approaches are laparoscopically feasible and safe. The goal remains similar, that is to avoid anastomotic tension. The operative time for this step, during the entire colorectal procedure, is influenced by the patient’s characteristics (previous surgery, high splenic flexure, short mesentery, etc.) and obviously, by the surgeon’s learning curve.

Conclusions: The choice between the three approaches depends on the patient’s characteristics and on the surgeon’s habits.