Biomedical subjects
S Hanada
Publications and source records attributed to S Hanada.
Experimental studies on the nervous control of the renal circulation. The relationship between the action potential of the renal nerve and the renal vascular resistance.
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[Plasma levels of pregnenolone and 17-hydroxipregnenolone during the menstrual cycle and early pregnancy (author's transl)].
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Effects of ethanol on experimental inflammation.
The carrageenin and nystatin-induced paw edemas were dose-dependently antagonized by oral administration of ethanol. The combination of ethanol and dexamethasone increased this inhibition. Carrageenin-induced edema was also inhibited by furosemide and pentobarbital. The vascular permeability effects of histamine and serotonin were markedly suppressed by ethanol pretreatment. However, ethanol was unable to suppress the granuloma formation caused by cotton pellet implantation. These results suggest that central depression, cardiovascular alteration and decreased vascular permeability may play an important role for ethanol antiinflammatory activity.
Control of bleeding during the Bentall operation.
A simple and effective method to diminish the amount of blood loss during the Bentall operation is described. This method is to connect the perigraft space between the aneurysmal wall and the aortic graft with the right atrium using a small plastic tube.
Postoperative hemolysis and its prevention in corrective surgery of truncus arteriosus.
Two cases of truncus arteriosus type I associated with truncal valve insufficiency were operated upon with the Rastelli's procedure. The first case of 3-year-old boy died from severe hemolysis which was caused by the regurgitant jet from the truncal valve running against the rough-surfaced Dacron patch for the VSD. The second case of 12-month-old girl was treated with a Dacron patch lined with an autologous pericardial pedicle. Her postoperative course was uneventful. The authors discuss the potential risk and prevention of postoperative hemolysis in corrective surgery of the truncus arteriosus with truncal valve insufficiency.