1.Cervical conization with endoCUT mode applying gastrointestinal endoscopic polypectomy technique
Masato TAMATE ; Motoki MATSUURA ; Tsuyoshi SAITO
Obstetrics & Gynecology Science 2023;66(6):584-586
Objective:
To show how endoCUT mode can be safely managed with cervical conization.
Methods:
Demonstration of the technique and explanation of endoCUT and soft coagulation mode with narrated video footage. Cervical conization is a therapeutic and diagnostic procedure performed for the diagnosis of cervical intraepithelial lesions and cervical cancer. Specific methods include cold scalpel, ultrasonically activated device and laser, and loop electrosurgical excision procedure (LEEP), which involves transpiration and partial excision. The endoCUT mode and soft coagulation in VIO3® (ERBE, Tübingen, Germany) were used to perform cervical conical resection safely and at low cost. The endoCUT mode was originally developed for polypectomy in gastrointestinal endoscopy, where no counter traction can be applied.
Results:
The endoCUT mode approach to cervical conization with several key strategies to minimize blood loss and ensure safety: 1) incisions can be made in close contact; 2) resection can be performed with minimal contact with the lesion; 3) control of bleeding from the resected transection by soft coagulation; and 4) low running cost of endoCUT mode.
Conclusion
Conventionally, cervical conical resection has been performed by using a device capable of making a close incision (cold scalpel, ultrasonically activated device and laser, and LEEP etc.), but there have been issues with bleeding control and cost. Here, we present a new technique using the endoCUT mode and several strategies for safe and effective resection.
2.Step-by-step demonstration of “sciatic-nerve-preserved beyondLEER” in a Thiel-embalmed cadaver:a novel salvage surgery for recurrent gynecologic malignancies
Hiroyuki KANAO ; Masato TAMATE ; Motoki MATSUURA ; Sachiko NAGAO ; Miseon NAKAZAWA ; Shutaro HABATA ; Tsuyoshi SAITO
Journal of Gynecologic Oncology 2024;35(5):e112-
Objective:
Complete resection is the curative treatment choice for recurrent gynecological malignancies. Laterally extended endopelvic resection (LEER) is an effective surgical salvage therapy for lateral recurrence. However, when a recurrent tumor occupies the ischial spine and sacrum, LEER is not indicated, and surgical salvage therapy is abandoned. Theoretically, complete resection of such a tumor is possible by additional pelvic bone resection along with the standard LEER. Nevertheless, owing to the anatomical complexities of the beyondLEER procedure, 2 major issues should be solved: sciatic nerve injury and tumor disruption during pelvic bone amputation. To overcome these technical challenges, we applied a multidirectional beyond-LEER approach, a novel salvage surgical procedure, with an aim of demonstrating its technical feasibility.
Methods:
We created a simulation model of a laterally recurrent tumor that occupied the right ischial spine and sacrum in a Thiel-embalmed cadaver.
Results:
Multidirectional approaches, including laparoscopic, perineal, and dorsal phases, were safely applied. We laparoscopically marked the L4-L5-S1 complex and S2 nerve with different colored tapes, and by pulling them out into a dorsal surgical field, the sciatic nerve was safely preserved. The dissection lines of the multidirectional approaches were aligned using tapes as landmarks, and complete tumor clearance without tumor disruption was accomplished. By following the cadaveric training, the first laparoscopic-assisted beyondLEER procedure was successfully performed in a patient with recurrent ovarian cancer.
Conclusion
Using a Thiel-embalmed cadaver, we demonstrated the technical feasibility of a sciatic nerve-preserved beyond-LEER procedure, which was successfully performed in a patient with recurrent ovarian cancer.
3.Step-by-step demonstration of “sciatic-nerve-preserved beyondLEER” in a Thiel-embalmed cadaver:a novel salvage surgery for recurrent gynecologic malignancies
Hiroyuki KANAO ; Masato TAMATE ; Motoki MATSUURA ; Sachiko NAGAO ; Miseon NAKAZAWA ; Shutaro HABATA ; Tsuyoshi SAITO
Journal of Gynecologic Oncology 2024;35(5):e112-
Objective:
Complete resection is the curative treatment choice for recurrent gynecological malignancies. Laterally extended endopelvic resection (LEER) is an effective surgical salvage therapy for lateral recurrence. However, when a recurrent tumor occupies the ischial spine and sacrum, LEER is not indicated, and surgical salvage therapy is abandoned. Theoretically, complete resection of such a tumor is possible by additional pelvic bone resection along with the standard LEER. Nevertheless, owing to the anatomical complexities of the beyondLEER procedure, 2 major issues should be solved: sciatic nerve injury and tumor disruption during pelvic bone amputation. To overcome these technical challenges, we applied a multidirectional beyond-LEER approach, a novel salvage surgical procedure, with an aim of demonstrating its technical feasibility.
Methods:
We created a simulation model of a laterally recurrent tumor that occupied the right ischial spine and sacrum in a Thiel-embalmed cadaver.
Results:
Multidirectional approaches, including laparoscopic, perineal, and dorsal phases, were safely applied. We laparoscopically marked the L4-L5-S1 complex and S2 nerve with different colored tapes, and by pulling them out into a dorsal surgical field, the sciatic nerve was safely preserved. The dissection lines of the multidirectional approaches were aligned using tapes as landmarks, and complete tumor clearance without tumor disruption was accomplished. By following the cadaveric training, the first laparoscopic-assisted beyondLEER procedure was successfully performed in a patient with recurrent ovarian cancer.
Conclusion
Using a Thiel-embalmed cadaver, we demonstrated the technical feasibility of a sciatic nerve-preserved beyond-LEER procedure, which was successfully performed in a patient with recurrent ovarian cancer.
4.Step-by-step demonstration of “sciatic-nerve-preserved beyondLEER” in a Thiel-embalmed cadaver:a novel salvage surgery for recurrent gynecologic malignancies
Hiroyuki KANAO ; Masato TAMATE ; Motoki MATSUURA ; Sachiko NAGAO ; Miseon NAKAZAWA ; Shutaro HABATA ; Tsuyoshi SAITO
Journal of Gynecologic Oncology 2024;35(5):e112-
Objective:
Complete resection is the curative treatment choice for recurrent gynecological malignancies. Laterally extended endopelvic resection (LEER) is an effective surgical salvage therapy for lateral recurrence. However, when a recurrent tumor occupies the ischial spine and sacrum, LEER is not indicated, and surgical salvage therapy is abandoned. Theoretically, complete resection of such a tumor is possible by additional pelvic bone resection along with the standard LEER. Nevertheless, owing to the anatomical complexities of the beyondLEER procedure, 2 major issues should be solved: sciatic nerve injury and tumor disruption during pelvic bone amputation. To overcome these technical challenges, we applied a multidirectional beyond-LEER approach, a novel salvage surgical procedure, with an aim of demonstrating its technical feasibility.
Methods:
We created a simulation model of a laterally recurrent tumor that occupied the right ischial spine and sacrum in a Thiel-embalmed cadaver.
Results:
Multidirectional approaches, including laparoscopic, perineal, and dorsal phases, were safely applied. We laparoscopically marked the L4-L5-S1 complex and S2 nerve with different colored tapes, and by pulling them out into a dorsal surgical field, the sciatic nerve was safely preserved. The dissection lines of the multidirectional approaches were aligned using tapes as landmarks, and complete tumor clearance without tumor disruption was accomplished. By following the cadaveric training, the first laparoscopic-assisted beyondLEER procedure was successfully performed in a patient with recurrent ovarian cancer.
Conclusion
Using a Thiel-embalmed cadaver, we demonstrated the technical feasibility of a sciatic nerve-preserved beyond-LEER procedure, which was successfully performed in a patient with recurrent ovarian cancer.
5.Current treatment strategies for ovarian cancer in the East Asian Gynecologic Oncology Trial Group (EAGOT)
Yusuke KOBAYASHI ; Muneaki SHIMADA ; Masato TAMATE ; Hyun Woong CHO ; Jun ZHU ; Hung-Hsueh CHOU ; Hiroaki KAJIYAMA ; Aikou OKAMOTO ; Daisuke AOKI ; Sokbom KANG ; Jeong-Won LEE ; Jae-Weon KIM ; Jae-Hoon KIM ; Zhongqiu LIN ; Jihong LIN ; Xiaohua WU ; Hung-Cheng LAI ; Ting-Chang CHANG ; Chyong-Huey LAI ; Yong Man KIM ; Takayuki ENOMOTO
Journal of Gynecologic Oncology 2024;35(3):e87-
Ovarian cancer, notable for its severe prognosis among gynecologic cancers, has seen substantial progress in treatment approaches recently. Enhanced protocols in chemotherapy and the introduction of poly (ADP-ribose) polymerase (PARP) inhibitors for maintenance therapy have markedly improved outcomes for patients with specific genetic profiles, such as those positive for BRCA mutations or exhibiting homologous recombination deficiency (HRD). Additionally, the method of intraperitoneal chemotherapy administration has emerged as a valuable alternative to traditional transvenous routes, showing promise for wider clinical adoption. The field of surgery has also evolved, with increasing exploration into the benefits and feasibility of laparoscopic methods over more invasive traditional surgeries, aiming for complete tumor removal but with reduced patient impact. The hereditary nature of ovarian cancer underscores the importance of genetic testing, which has become integral in tailoring treatment strategies, particularly in determining suitability for PARP inhibitors.The formation of the East Asian Gynecologic Oncology Trial Group (EAGOT) aims to optimize treatment across Japan, Korea, China, and Taiwan. The ovarian cancer committee of EAGOT shared the current policies, focusing on 5 topics: 1) strategies for maintenance therapy after initial surgery and chemotherapy, 2) drug regimens for platinum-sensitive and platinum-resistant recurrence, 3) intraperitoneal chemotherapy, 4) laparoscopic surgery as an alternative to laparotomy, and 5) current status of genetic testing (BRCA, HRD, and panel tests) for ovarian cancer and its prospects. EAGOT’s multi-national trials aim to harmonize these evolving treatment strategies, ensuring that the latest and most effective protocols are accessible across the region, thereby significantly impacting patient outcomes in East Asia.
6.Current treatment strategies for ovarian cancer in the East Asian Gynecologic Oncology Trial Group (EAGOT)
Yusuke KOBAYASHI ; Muneaki SHIMADA ; Masato TAMATE ; Hyun Woong CHO ; Jun ZHU ; Hung-Hsueh CHOU ; Hiroaki KAJIYAMA ; Aikou OKAMOTO ; Daisuke AOKI ; Sokbom KANG ; Jeong-Won LEE ; Jae-Weon KIM ; Jae-Hoon KIM ; Zhongqiu LIN ; Jihong LIN ; Xiaohua WU ; Hung-Cheng LAI ; Ting-Chang CHANG ; Chyong-Huey LAI ; Yong Man KIM ; Takayuki ENOMOTO
Journal of Gynecologic Oncology 2024;35(3):e87-
Ovarian cancer, notable for its severe prognosis among gynecologic cancers, has seen substantial progress in treatment approaches recently. Enhanced protocols in chemotherapy and the introduction of poly (ADP-ribose) polymerase (PARP) inhibitors for maintenance therapy have markedly improved outcomes for patients with specific genetic profiles, such as those positive for BRCA mutations or exhibiting homologous recombination deficiency (HRD). Additionally, the method of intraperitoneal chemotherapy administration has emerged as a valuable alternative to traditional transvenous routes, showing promise for wider clinical adoption. The field of surgery has also evolved, with increasing exploration into the benefits and feasibility of laparoscopic methods over more invasive traditional surgeries, aiming for complete tumor removal but with reduced patient impact. The hereditary nature of ovarian cancer underscores the importance of genetic testing, which has become integral in tailoring treatment strategies, particularly in determining suitability for PARP inhibitors.The formation of the East Asian Gynecologic Oncology Trial Group (EAGOT) aims to optimize treatment across Japan, Korea, China, and Taiwan. The ovarian cancer committee of EAGOT shared the current policies, focusing on 5 topics: 1) strategies for maintenance therapy after initial surgery and chemotherapy, 2) drug regimens for platinum-sensitive and platinum-resistant recurrence, 3) intraperitoneal chemotherapy, 4) laparoscopic surgery as an alternative to laparotomy, and 5) current status of genetic testing (BRCA, HRD, and panel tests) for ovarian cancer and its prospects. EAGOT’s multi-national trials aim to harmonize these evolving treatment strategies, ensuring that the latest and most effective protocols are accessible across the region, thereby significantly impacting patient outcomes in East Asia.
7.Current treatment strategies for ovarian cancer in the East Asian Gynecologic Oncology Trial Group (EAGOT)
Yusuke KOBAYASHI ; Muneaki SHIMADA ; Masato TAMATE ; Hyun Woong CHO ; Jun ZHU ; Hung-Hsueh CHOU ; Hiroaki KAJIYAMA ; Aikou OKAMOTO ; Daisuke AOKI ; Sokbom KANG ; Jeong-Won LEE ; Jae-Weon KIM ; Jae-Hoon KIM ; Zhongqiu LIN ; Jihong LIN ; Xiaohua WU ; Hung-Cheng LAI ; Ting-Chang CHANG ; Chyong-Huey LAI ; Yong Man KIM ; Takayuki ENOMOTO
Journal of Gynecologic Oncology 2024;35(3):e87-
Ovarian cancer, notable for its severe prognosis among gynecologic cancers, has seen substantial progress in treatment approaches recently. Enhanced protocols in chemotherapy and the introduction of poly (ADP-ribose) polymerase (PARP) inhibitors for maintenance therapy have markedly improved outcomes for patients with specific genetic profiles, such as those positive for BRCA mutations or exhibiting homologous recombination deficiency (HRD). Additionally, the method of intraperitoneal chemotherapy administration has emerged as a valuable alternative to traditional transvenous routes, showing promise for wider clinical adoption. The field of surgery has also evolved, with increasing exploration into the benefits and feasibility of laparoscopic methods over more invasive traditional surgeries, aiming for complete tumor removal but with reduced patient impact. The hereditary nature of ovarian cancer underscores the importance of genetic testing, which has become integral in tailoring treatment strategies, particularly in determining suitability for PARP inhibitors.The formation of the East Asian Gynecologic Oncology Trial Group (EAGOT) aims to optimize treatment across Japan, Korea, China, and Taiwan. The ovarian cancer committee of EAGOT shared the current policies, focusing on 5 topics: 1) strategies for maintenance therapy after initial surgery and chemotherapy, 2) drug regimens for platinum-sensitive and platinum-resistant recurrence, 3) intraperitoneal chemotherapy, 4) laparoscopic surgery as an alternative to laparotomy, and 5) current status of genetic testing (BRCA, HRD, and panel tests) for ovarian cancer and its prospects. EAGOT’s multi-national trials aim to harmonize these evolving treatment strategies, ensuring that the latest and most effective protocols are accessible across the region, thereby significantly impacting patient outcomes in East Asia.