1993 Fiscal Year Final Research Report Summary
Development of endoscopic retroperitoneal surgery.
| Project/Area Number |
03557070
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Urology
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| Research Institution | University of Tokyo |
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Principal Investigator |
HIGASHIHARA Eiji Univ.of Tokyo, Dept.of Urol.Associate Professor, 医学部(病), 助教授 (00092312)
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| Co-Investigator(Kenkyū-buntansha) |
TERADA Masayuki Olympus Japan Co., Ltd.Director, 第三開発部, 部長
TAKEUCHI Takumi Univ.of Tokyo, Dept.of Urol.Assosiate, 医学部(病), 助手 (90167487)
TANAKA Yoshinori Univ.of Tokyo, Dept.of Urol.Assosiate, 医学部(病), 助手 (50236650)
OSHI Masaya Univ.of Tokyo, Dept.of Urol.Assistant Professor, 医学部(病), 講師 (60143468)
NUTAHARA Kikuo Univ.of Tokyo, Dept.of Urol.Assistant Professor, 医学部(病), 講師 (00143470)
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| Project Period (FY) |
1991 – 1993
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| Keywords | Laparoscopy / Nephrectomy / Adrenalectomy |
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| Research Abstract |
In this research, it is aimed to develop the endoscopic retroperitoneal surgery specifically endoscopic adrenalectomy and following results are obtained.
1) Animal experiments on six sows show that retroperitoneal approach is difficult due to limited narrow spece and laparoscopic approach is selected for nephrectomy and adrenalectomy.
2) The equipments required for retroperitoneal surgery must meets the function required for open surgery because dissection of large to medium size blood vessels plays an important role both in open and laparoscopic nephrectomy and adrenalectomy. We developed instruments adequate in the demanding confines of the retroperitoneal urological laparoscopic surgery.
3) The equipments mentioned above in hand, we extended laparoscopic surgery to adrenalectomy probably as one of the earliest group in the world.
4) Renal cell carcinoma should be ruled out from the indication of laparoscopic surgery until regional lymphadenectomy becomes technically reliable. Laparoscopic adrenalectomy is an excellent method to remove benign adrenal tumor but not suitable for malignant adrenal tumor.
5) Secure and safe procedures for laparoscopic surgery including open laparoscopy, stealtraction method and surgical techniques are emphasized. Laparoscopic adrenalectomy can be done in same operation time and with less amount of operation blood loss to compare with open surgery. In laparoscopic adrenalectomy the convalescence is faster and morbidity is lower. We believe that laparoscopic adrenalectomy offers a minimally invasive alternative to open adrenalectomy.
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