| Project/Area Number |
02454299
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
General surgery
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| Research Institution | Tokyo Medical and Dental Univ. School of Medicine |
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Principal Investigator |
IWAI Takehisa Tokyo Med & Dent Univ. Scho of Medicine Associate Prof., 医学部, 助教授 (90111591)
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| Project Period (FY) |
1990 – 1992
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| Project Status |
Completed (Fiscal Year 1992)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1992: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥2,700,000 (Direct Cost: ¥2,700,000)
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| Keywords | transanal Doppler exam / visceral circulation / pelvic circulation / abdominal aortic aneurysm / aorto-iliac occlusive disease / ischenic colitis / hip claudication / vasculogenic impotence / 大動脈ー腸骨動脈閉塞 / 大腸虚 / 経肛門的直腸ドップラ-法 / 賢筋跛行 / 大動脈瘤 / Aortoーiliac steal現象 |
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| Research Abstract |
Recent increase of atheosclerosis obliterans and abdominal aortic aneurysm patients are remarkable and an establishment of safe procedure for those cases are urgent concern for us. We developed a new device to check visceral circulation using transanal Doppler flowdetector. This technique is non invasive and more than 120 cases experiences showed that visceral or pelvic circulation were easily demonstrated by this device. And it offered a index for safe surgical procedures. In abdominal aortic aneurysm surgery, we could ligate three branches (inferior mesenteric and bilateral internal iliac arteries) without any postoperative complications when we could hear good signal via the superior mesenteric artery to the rectum. On the other hand, hip claudication and vasculogenic impotence were investigated using this technique and diagnostic or therapeutic usefulness was ascertained. And retroperitoneal approach for aorto-iliac surgery was well controled visceral circulation by usage of this device. Other technical improvements for Doppler probe provided for easy handling of this technique until we got almost zero false negative rate.
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