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#April 2017
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Minimally invasive right superior parathyroidectomy (MIVAP) for symptomatic primary hyperparathyroidism
This video presents the case of a 62 year-old patient with primary hyperparathyroidism characterized by a PTH which is inconsistent with calcium levels. The diagnosis is confirmed by biological findings before searching for the adenoma inducing this hypersecretion. With the use of current precision imaging techniques, in most cases, the adenoma can be identified and managed surgically. In our team, we perform a 99m Tc-MIBI scintigraphy and a CT-scan allowing for a 3D reconstruction according to the IRCAD protocol. This 3D reconstruction shows the relationships between the adenoma, the inferior thyroid artery, the thyroid gland, and the esophagus, making it possible to perform a video-assisted approach using a scar inferior to 2cm.
M Vix, HA Mercoli, S Tzedakis, J Marescaux
Surgical intervention
1 year ago
803 views
115 likes
0 comments
08:28
Minimally invasive right superior parathyroidectomy (MIVAP) for symptomatic primary hyperparathyroidism
This video presents the case of a 62 year-old patient with primary hyperparathyroidism characterized by a PTH which is inconsistent with calcium levels. The diagnosis is confirmed by biological findings before searching for the adenoma inducing this hypersecretion. With the use of current precision imaging techniques, in most cases, the adenoma can be identified and managed surgically. In our team, we perform a 99m Tc-MIBI scintigraphy and a CT-scan allowing for a 3D reconstruction according to the IRCAD protocol. This 3D reconstruction shows the relationships between the adenoma, the inferior thyroid artery, the thyroid gland, and the esophagus, making it possible to perform a video-assisted approach using a scar inferior to 2cm.
PerOral Endoscopic Thyroidectomy (POET), a novel pioneering technique
Thyroid surgery has evolved towards minimally invasive approaches to reduce or prevent cervical scars, which are potential seats for keloidal scarring. Several approaches have been put forward: video-assisted surgery via a reduced cervical scar, transaxillary access with or without robotic assistance, transoral retromandibular approach, retroauricular approach in keeping with a lifting procedure.
In this video, we present the case of an original transoral vestibular approach. This access is exclusively subcutaneous. No cervical scar is necessary. This technique allows for a unilateral or bilateral approach in excellent visualization conditions. Dissection is performed from cranially to caudally with the rapid identification of the inferior laryngeal nerve.
A Anuwong, M Vix, HS Wu
Surgical intervention
1 year ago
4091 views
310 likes
5 comments
25:34
PerOral Endoscopic Thyroidectomy (POET), a novel pioneering technique
Thyroid surgery has evolved towards minimally invasive approaches to reduce or prevent cervical scars, which are potential seats for keloidal scarring. Several approaches have been put forward: video-assisted surgery via a reduced cervical scar, transaxillary access with or without robotic assistance, transoral retromandibular approach, retroauricular approach in keeping with a lifting procedure.
In this video, we present the case of an original transoral vestibular approach. This access is exclusively subcutaneous. No cervical scar is necessary. This technique allows for a unilateral or bilateral approach in excellent visualization conditions. Dissection is performed from cranially to caudally with the rapid identification of the inferior laryngeal nerve.
Video-assisted exploration of the four parathyroid lobes for primary hyperparathyroidism
Background:
The presence of a single parathyroid adenoma accurately located using preoperative imaging is the best indication for minimally invasive surgery when dealing with primary hyperparathyroidism. It is certainly possible to search for several glands that may be suspicious of adenoma, but an extensive experience in video-assisted cervical surgery is required to find the anatomical structures allowing to explore the four parathyroid locations.
Patient and methods:
A 75-year-old obese woman is diagnosed with hypercalcemia, hypophosphoremia, and a high level of PTH during a work-up for joint pain.

Preoperative imaging includes a 3D-reconstructed cervico-mediastinal CT-scan —a computer program developed at the IRCAD-Strasbourg, named VrAnat™, Vr planning™, is used for that purpose. This 3D virtual reconstruction demonstrates three suspicious images respectively located at the right superior parathyroid territory, at the right latero-esophageal area, and at the left inferior parathyroid territory. A video-assisted cervical exploration, guided by this reconstruction, is decided upon. The objective is to find the three suspicious images and to explore the four parathyroid glands.

A 3cm median incision is carried out 2cm above the sternal notch. The right thyrotracheal groove is reached through a dissection performed laterally to the strap muscles and medially to the omohyoid muscle. A complete dissection of the lateral aspect of the thyroid lobe is obtained using blunt dissection and small instruments under endoscopic vision, which is provided by a 30-degree, 5mm scope (Storz, Tüttlingen, Germany). The recurrent laryngeal nerve is identified.

Dissection is now carried on above the inferior thyroid artery. It allows to rapidly identify a superior parathyroid adenoma, which will be resected. It exactly matches with one of the suspicious images.

Dissection is pursued anterior to the intersection between the artery and the nerve so as to find the right inferior parathyroid, which is healthy, underneath the capsule. The latero-esophageal image is now searched for. It is nothing but an anthracosic lymph node.

The left side is approached by dissecting the left jugulocarotid gutter. The left recurrent nerve is identified. The left inferior parathyroid is identified and looks healthy. The suspected image is nothing else but a nodule of the apex of the thyrothymic ligament. The left superior parathyroid, which is healthy, can be finally identified in a strictly orthotopic position, although partially hidden behind a Zuckerkandl’s nodule.

Conclusion:
This cervical exploration has led to the dissection and visualization of the four parathyroid lobes in compliance with classical parathyroid surgery principles.
References:
Berti P, Materazzi G, Picone A, Miccoli P. Limits and drawbacks of video-assisted parathyroidectomy. Br J Surg 2003;90:743-7.

Miccoli P, Materazzi G, Baggiani A, Miccoli M. Mini-invasive video-assisted surgery of the thyroid and parathyroid glands: a 2011 update. J Endocrinol Invest 2011;34:473-80.
M Vix, D Mutter, J Marescaux
Surgical intervention
1 year ago
460 views
71 likes
0 comments
09:39
Video-assisted exploration of the four parathyroid lobes for primary hyperparathyroidism
Background:
The presence of a single parathyroid adenoma accurately located using preoperative imaging is the best indication for minimally invasive surgery when dealing with primary hyperparathyroidism. It is certainly possible to search for several glands that may be suspicious of adenoma, but an extensive experience in video-assisted cervical surgery is required to find the anatomical structures allowing to explore the four parathyroid locations.
Patient and methods:
A 75-year-old obese woman is diagnosed with hypercalcemia, hypophosphoremia, and a high level of PTH during a work-up for joint pain.

Preoperative imaging includes a 3D-reconstructed cervico-mediastinal CT-scan —a computer program developed at the IRCAD-Strasbourg, named VrAnat™, Vr planning™, is used for that purpose. This 3D virtual reconstruction demonstrates three suspicious images respectively located at the right superior parathyroid territory, at the right latero-esophageal area, and at the left inferior parathyroid territory. A video-assisted cervical exploration, guided by this reconstruction, is decided upon. The objective is to find the three suspicious images and to explore the four parathyroid glands.

A 3cm median incision is carried out 2cm above the sternal notch. The right thyrotracheal groove is reached through a dissection performed laterally to the strap muscles and medially to the omohyoid muscle. A complete dissection of the lateral aspect of the thyroid lobe is obtained using blunt dissection and small instruments under endoscopic vision, which is provided by a 30-degree, 5mm scope (Storz, Tüttlingen, Germany). The recurrent laryngeal nerve is identified.

Dissection is now carried on above the inferior thyroid artery. It allows to rapidly identify a superior parathyroid adenoma, which will be resected. It exactly matches with one of the suspicious images.

Dissection is pursued anterior to the intersection between the artery and the nerve so as to find the right inferior parathyroid, which is healthy, underneath the capsule. The latero-esophageal image is now searched for. It is nothing but an anthracosic lymph node.

The left side is approached by dissecting the left jugulocarotid gutter. The left recurrent nerve is identified. The left inferior parathyroid is identified and looks healthy. The suspected image is nothing else but a nodule of the apex of the thyrothymic ligament. The left superior parathyroid, which is healthy, can be finally identified in a strictly orthotopic position, although partially hidden behind a Zuckerkandl’s nodule.

Conclusion:
This cervical exploration has led to the dissection and visualization of the four parathyroid lobes in compliance with classical parathyroid surgery principles.
References:
Berti P, Materazzi G, Picone A, Miccoli P. Limits and drawbacks of video-assisted parathyroidectomy. Br J Surg 2003;90:743-7.

Miccoli P, Materazzi G, Baggiani A, Miccoli M. Mini-invasive video-assisted surgery of the thyroid and parathyroid glands: a 2011 update. J Endocrinol Invest 2011;34:473-80.
Totally endoscopic left hemithyroidectomy: axillary approach for papillary carcinoma, including a critical analysis by M Vix, MD, and point by point answer by Dr. Shah
Introduction:
Endoscopic thyroidectomy is a novel approach used to avoid cervical scar, which represents sequelae of conventional thyroidectomies. This technique is feasible providing equal results under expert hands.
Case presentation:
This is the case of a 20 year-old woman with cervical swelling, a 3 by 3cm solitary nodule in the left thyroid lobe, which was evaluated clinically, radiologically, and withfine-needle aspiration cytology (FNAC). She was diagnosed with a low-risk papillary carcinoma.
Discussion:
The patient underwent an endoscopic transaxillary left hemithyroidectomy under general anesthesia. The recurrent laryngeal nerve and the parathyroid gland were preserved. The patient was discharged with a normal tone on postoperative day 1.
Conclusion:
Endoscopic transaxillary thyroidectomy is a feasible good technique with equal results, which can be considered for patients with small thyroid lesions. Conventional laparoscopic instruments are used without the need for extra instrumentation.

This video is commented upon by Dr. M Vix, MD (University Hospital, Strasbourg, France), providing a comprehensive outline of Dr. Shah's original technique.


Point by point answer by Dr. Shah:

1. Carbon dioxide causing surgical emphysema, especially of an incapacitating nature, has not been experienced since intracavitary pressures are generally maintained at a low level by the almost continuous low-grade suction used throughout the surgery.

2. In our experience, adequate visualization of the thyroid pedicles in close proximity to the gland precludes the need for a deeper and more lateral dissection to identify the jugulocarotid vessels. This potentially decreases the risk of a major vascular mishap.

3. As is the norm with open thyroidectomy, division of the superior thyroid pedicle close to the gland usually does not require the identification of the superior laryngeal nerve.

4. In this approach, the recurrent laryngeal nerve is identified very early on in the dissection. Subsequent dissection is performed in a plane anterior to the visualized nerve, hence preventing any injuries. The recurrent laryngeal nerve is visualized in its entire extent up to Berry's ligament.



AR Shah
Surgical intervention
1 year ago
850 views
113 likes
0 comments
11:09
Totally endoscopic left hemithyroidectomy: axillary approach for papillary carcinoma, including a critical analysis by M Vix, MD, and point by point answer by Dr. Shah
Introduction:
Endoscopic thyroidectomy is a novel approach used to avoid cervical scar, which represents sequelae of conventional thyroidectomies. This technique is feasible providing equal results under expert hands.
Case presentation:
This is the case of a 20 year-old woman with cervical swelling, a 3 by 3cm solitary nodule in the left thyroid lobe, which was evaluated clinically, radiologically, and withfine-needle aspiration cytology (FNAC). She was diagnosed with a low-risk papillary carcinoma.
Discussion:
The patient underwent an endoscopic transaxillary left hemithyroidectomy under general anesthesia. The recurrent laryngeal nerve and the parathyroid gland were preserved. The patient was discharged with a normal tone on postoperative day 1.
Conclusion:
Endoscopic transaxillary thyroidectomy is a feasible good technique with equal results, which can be considered for patients with small thyroid lesions. Conventional laparoscopic instruments are used without the need for extra instrumentation.

This video is commented upon by Dr. M Vix, MD (University Hospital, Strasbourg, France), providing a comprehensive outline of Dr. Shah's original technique.


Point by point answer by Dr. Shah:

1. Carbon dioxide causing surgical emphysema, especially of an incapacitating nature, has not been experienced since intracavitary pressures are generally maintained at a low level by the almost continuous low-grade suction used throughout the surgery.

2. In our experience, adequate visualization of the thyroid pedicles in close proximity to the gland precludes the need for a deeper and more lateral dissection to identify the jugulocarotid vessels. This potentially decreases the risk of a major vascular mishap.

3. As is the norm with open thyroidectomy, division of the superior thyroid pedicle close to the gland usually does not require the identification of the superior laryngeal nerve.

4. In this approach, the recurrent laryngeal nerve is identified very early on in the dissection. Subsequent dissection is performed in a plane anterior to the visualized nerve, hence preventing any injuries. The recurrent laryngeal nerve is visualized in its entire extent up to Berry's ligament.



Laparoscopic bile duct exploration with bile duct endoscopy and biliary bypass for recurrent biliary pancreatitis after cholecystectomy
This video shows the peculiar case of a 50-year-old male patient who underwent an open cholecystectomy for acute cholecystitis 12 years ago and he has been consulting for pancreatitis symptoms during the last seven years.
The patient reported that he had undergone ERCP twice after cholecystectomy because of bile duct stones and reportedly, complete bile duct clearance was achieved both times.
He presented to our facility with a new episode of mild pancreatitis.
No abnormalities were demonstrated in liver function tests. Amylase, GGT, and alkaline phosphatase values were normal.
Hepatobiliary ultrasound demonstrated a dilated common bile duct. MRCP (cholangio-MRI) showed several filling defects, particularly in the common bile duct and the left hepatic duct. CT-scan of the pancreas did not reveal abnormalities within the pancreatic parenchyma.
We decided to perform a bile duct exploration with endoscopic evaluation of the entire biliary tree and to perform a Roux-en-Y hepaticojejunostomy because of recurrent biliary pancreatitis after cholecystectomy.
JM Cabada Lee
Surgical intervention
1 year ago
1688 views
104 likes
2 comments
10:55
Laparoscopic bile duct exploration with bile duct endoscopy and biliary bypass for recurrent biliary pancreatitis after cholecystectomy
This video shows the peculiar case of a 50-year-old male patient who underwent an open cholecystectomy for acute cholecystitis 12 years ago and he has been consulting for pancreatitis symptoms during the last seven years.
The patient reported that he had undergone ERCP twice after cholecystectomy because of bile duct stones and reportedly, complete bile duct clearance was achieved both times.
He presented to our facility with a new episode of mild pancreatitis.
No abnormalities were demonstrated in liver function tests. Amylase, GGT, and alkaline phosphatase values were normal.
Hepatobiliary ultrasound demonstrated a dilated common bile duct. MRCP (cholangio-MRI) showed several filling defects, particularly in the common bile duct and the left hepatic duct. CT-scan of the pancreas did not reveal abnormalities within the pancreatic parenchyma.
We decided to perform a bile duct exploration with endoscopic evaluation of the entire biliary tree and to perform a Roux-en-Y hepaticojejunostomy because of recurrent biliary pancreatitis after cholecystectomy.
Large intradiverticulum endoscopic biliary sphincterotomy
Periampullary duodenal diverticula are observed in 10-20% of patients undergoing endoscopic retrograde cholangiopancreatography (ERCP) and could well increase ampulla cannulation failure risk, as well as potential complications related to endoscopic sphincterotomy.
Here we report two successful cases of large intradiverticular endoscopic biliary sphincterotomy in the treatment of two different kinds of benign biliary pathologies. The first case was that of a woman with multiple large stones in the common bile duct (CBD). The second case was one of a male patient with cholestasis due to a compression of the distal common bile duct caused by a diverticulum – this condition being known as Lemmel’s syndrome.
Gf Donatelli, L Marx, J Marescaux
Surgical intervention
1 year ago
1326 views
77 likes
0 comments
05:09
Large intradiverticulum endoscopic biliary sphincterotomy
Periampullary duodenal diverticula are observed in 10-20% of patients undergoing endoscopic retrograde cholangiopancreatography (ERCP) and could well increase ampulla cannulation failure risk, as well as potential complications related to endoscopic sphincterotomy.
Here we report two successful cases of large intradiverticular endoscopic biliary sphincterotomy in the treatment of two different kinds of benign biliary pathologies. The first case was that of a woman with multiple large stones in the common bile duct (CBD). The second case was one of a male patient with cholestasis due to a compression of the distal common bile duct caused by a diverticulum – this condition being known as Lemmel’s syndrome.
Is minimally invasive thyroidectomy and parathyroidectomy a real progress?
In this video, Dr. QY Duh briefly describes the main principles of MIVAT and MIVAP and compares the novel techniques used for minimal incision thyroidectomy. He presents the advantages, disadvantages and complications of MIVAP & MIVAT, and outlines current innovative approaches for transaxillary thyroidectomy, e.g. robot-assisted BABA, RATS, facelift thyroidectomy, eMIT, TOVAT, TOVANS, and TOETVA. He demonstrates the key steps in the evolution of MIS thyroidectomy from Kocher, mini-incision, MIVAT, extracervical access to NOTES with main advantages of safety –short incision and no neck incision. Finally, he stresses that minimally invasive thyroid surgery is a real progress to evaluate new operations based on safety and efficacy. However, it may not be a real progress in terms of cost and mortality or morbidity.
QY Duh
Lecture
1 year ago
227 views
21 likes
0 comments
19:41
Is minimally invasive thyroidectomy and parathyroidectomy a real progress?
In this video, Dr. QY Duh briefly describes the main principles of MIVAT and MIVAP and compares the novel techniques used for minimal incision thyroidectomy. He presents the advantages, disadvantages and complications of MIVAP & MIVAT, and outlines current innovative approaches for transaxillary thyroidectomy, e.g. robot-assisted BABA, RATS, facelift thyroidectomy, eMIT, TOVAT, TOVANS, and TOETVA. He demonstrates the key steps in the evolution of MIS thyroidectomy from Kocher, mini-incision, MIVAT, extracervical access to NOTES with main advantages of safety –short incision and no neck incision. Finally, he stresses that minimally invasive thyroid surgery is a real progress to evaluate new operations based on safety and efficacy. However, it may not be a real progress in terms of cost and mortality or morbidity.
Is robotic thyroid surgery a real progress?
In this key lecture, Prof. WY Chung briefly describes his experience and his own technique to perform robotic thyroid surgery. He presents advances in surgical indications and compares the main differences of single incision robotic thyroidectomy and LND with novel techniques, e.g. BABA, facelift thyroidectomy, and transoral periosteal thyroidectomy. He demonstrates the advantages and limitations using research data to describe the future of robotic thyroidectomy as a minimally invasive surgery. He highlights new technologies and newly developed robotic systems with current improvements, which focus on haptic feedback, tactile sensation, and single orifice surgery, which will make AI robotic automation surgery possible in the future.
WY Chung
Lecture
1 year ago
351 views
50 likes
0 comments
13:32
Is robotic thyroid surgery a real progress?
In this key lecture, Prof. WY Chung briefly describes his experience and his own technique to perform robotic thyroid surgery. He presents advances in surgical indications and compares the main differences of single incision robotic thyroidectomy and LND with novel techniques, e.g. BABA, facelift thyroidectomy, and transoral periosteal thyroidectomy. He demonstrates the advantages and limitations using research data to describe the future of robotic thyroidectomy as a minimally invasive surgery. He highlights new technologies and newly developed robotic systems with current improvements, which focus on haptic feedback, tactile sensation, and single orifice surgery, which will make AI robotic automation surgery possible in the future.
Transoral endoscopic thyroidectomy: vestibular approach
In this state-of-the-art lecture, Dr. Anuwong briefly describes the historical developments of thyroidectomy with various approaches, emphasizing natural orifice thyroid surgery with an overview of the first report in animal models, cadaveric models, and human patients in different countries as it happened over time. He describes the key steps, main principles, and complications of TOVANS, ETOA, and TOPOT with their drawbacks. He also introduces his technique of transoral endoscopic thyroidectomy: vestibular approach (TOETVA) with the brief concept of mental nerve injury. He demonstrates his experience in a case report of right lobectomy using TOETVA with postoperative management and impressive results achieved with no infection and no scar. The TOETVA technique proves to be promising as it is safe, feasible, comparable to other approaches, and has excellent cosmetic results.
A Anuwong
Lecture
1 year ago
1562 views
130 likes
1 comment
28:41
Transoral endoscopic thyroidectomy: vestibular approach
In this state-of-the-art lecture, Dr. Anuwong briefly describes the historical developments of thyroidectomy with various approaches, emphasizing natural orifice thyroid surgery with an overview of the first report in animal models, cadaveric models, and human patients in different countries as it happened over time. He describes the key steps, main principles, and complications of TOVANS, ETOA, and TOPOT with their drawbacks. He also introduces his technique of transoral endoscopic thyroidectomy: vestibular approach (TOETVA) with the brief concept of mental nerve injury. He demonstrates his experience in a case report of right lobectomy using TOETVA with postoperative management and impressive results achieved with no infection and no scar. The TOETVA technique proves to be promising as it is safe, feasible, comparable to other approaches, and has excellent cosmetic results.
Ethics and new technology: are we being honest with our patients?
Dr. Angelos delivers an amazing lecture on the following issue: “Ethics and new technology”. He briefly describes progress in the field of surgery and the ethics of innovation. He also outlines the basics of professionalism in medicine, surgeon-patient relationship, and informed consent for innovative operations. He describes the main principles to assess the potential benefits of innovative techniques via the surgeon’s participation in clinical trials or registries. He emphasizes the management of ethical issues via discussions between individual surgeons and patients about the uncertainties of innovations in order to make informed consent a reality.
P Angelos
Lecture
1 year ago
196 views
15 likes
0 comments
22:04
Ethics and new technology: are we being honest with our patients?
Dr. Angelos delivers an amazing lecture on the following issue: “Ethics and new technology”. He briefly describes progress in the field of surgery and the ethics of innovation. He also outlines the basics of professionalism in medicine, surgeon-patient relationship, and informed consent for innovative operations. He describes the main principles to assess the potential benefits of innovative techniques via the surgeon’s participation in clinical trials or registries. He emphasizes the management of ethical issues via discussions between individual surgeons and patients about the uncertainties of innovations in order to make informed consent a reality.