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Biomedical subjects

F Okamoto

Publications and source records attributed to F Okamoto.

At least 91 records · Page 5Linked to original sources
PubMed1989

[Diltiazem blood cardioplegia in patients of severe valvular heart disease].

This study was undertaken to analyze the effect of diltiazem blood cardioplegia (D-BCP) in patients of valvular heart disease with severe left ventricular dysfunction (EF = 56.3%, FS = 26.0%, CI = 2.241/min/m3), they were satisfied with NYHA functional class 3 and 4, also cardiothoracic ratio over 65%. By negative choronotropic action of D, the heart rates in D added group tend to be less than those of D free group 4 to 16 hours postoperatively, although that may diminish the incidence of ventricular arrhythmia postoperatively. D-BCP improved better functional recovery (mPAWP-LVSWI relation) during the early postoperative period than those seen in preoperatively. The pulmonary vascular resistance index of D added group showed significantly lower levels than those in the preoperative period, 0 to 16 hours after surgery. Consequently, D-BCP might be safe and provide superior protection for severe valvular heart disease.

Aged↗
PubMed1988

Successful surgical repair of truncus arteriosus with interrupted aortic arch in infancy by an anterior approach.

A 98-day-old infant was successfully operated on for truncus arteriosus (type I) with interrupted aortic arch (type B) using a one-stage anterior approach. The interrupted aortic arch was reconstructed by direct anastomosis between the ascending and descending aorta. The ventricular septal defect was closed, and a 12-mm porcine valved conduit was placed on the right side of the ascending aorta to establish continuity between the right ventricle and pulmonary artery. Surgical procedures for the repair of this malformation are the focus of discussion.

Aorta, Thoracic↗
PubMed1988

[Size and configuration of the functional aortic root after the arterial switch operation for complete transposition of the great arteries].

Twelve patients with complete transposition of the great arteries who had arterial switch operation were investigated by postoperative cineangiogram to assess the size and configuration of the functional aortic root. Three patients underwent Damus-Kaye-Stansel operation and the remaining nine received Lecompte modification of Jatene operation. Aortogram showed trivial or mild aortic regurgitation in six patients who underwent Jatene operation but no regurgitation was detected in patients after Damus-Kaye-Stansel operation, arterial switch operation without coronary relocation. The patients were divided into two groups according to the aortographic findings: AR(-); patients with competent aortic valve, AR(+); patients with incompetent aortic valve. Comparison was made between these two groups, measuring new aortic root diameter at three levels. The systolic diameter of distal aortic root was significantly enlarged in AR(+) group as compared to AR(-) group. These results suggest that the relocation of the coronary arteries and the dilatation of aortic root may contribute to aortic regurgitation after Jatene operation.

Aortic Valve↗