Circulatory Support for the Operation of the Descending Thoracic Aorta with a Heparin-coated Tube and a Roller Pump.

VernacularTitle:ヘパリンコーティングチューブとローラポンプを補助手段として用いた胸部下行大動脈手術
Author: Akira SAITO ; Shoji EGUCHI ; Jun-ichi HAYASHI ; Kazuo YAMAMOTO ; Hisanaga MORO ; Hajime OHZEKI
Publication Type:Journal Article
From:Japanese Journal of Cardiovascular Surgery 1992;21(5):515-518
CountryJapan
Language:Japanese
Abstract: We applied a new circulatory support system to three patients with descending aortic operation between 1989 and 1990. The new system consisted of a polyvinylchloride tube coated with hydrophilic heparinized polymer and a roller pump. Low doses of heparin (0.5mg/kg) were administered in two patients and none in one patient before aortic bypass. The aortic crossclamping time ranged between 52 and 64 minutes. In two patients, whose inflow cannulae were 18Fr. or 20Fr., successful bypass flow exceeded 2l/min and optimal distal aortic pressure were maintained during aortic cross-clamping. The postoperative courses of these patients were uneventful, free from thromboembolic episodes and subsequently discharged from hospital. Furthermore, postoperative careful examination revealed no thrombus formation occurred in the three devices. In conclusion, our new simple, antithrombogenic circulatory system is extremely useful for descending aortic operations.