J.Jpn. Surg. Soc.
ISSN 1880-1129

[Abstract] [Full Text PDF] （in Japanese / 5154KB） [Members Only And Two Factor Auth.]

J.Jpn. Surg. Soc.. 87(1): 90-98, 1986

Original article

EVALUATION OF LEFT VENTRICULAR FUNCTION AND CORONARY SINUS BLOOD FLOW DURING EXERCISE AFTER AORTOCORONARY BYPASS SURGERY INFLUENCE OF REVASCULARIZATION OF THE LEFT ANTERIOR DESCENDING ARTERY

First Department of Surgery, Osaka University Medical School, Osaka, Japan
*) Third Department of Surgery, Nara Medical College, Kashiwara, Japan

Tetsuo Sakakibara, Hajime Hirose, Susumu Nakano, Hikaru Matsuda, Kanji Kawachi*), Soichiro Kitamura*), Yasunaru Kawashima

Left ventricular function and coronary sinus blood flow at rest and during exercise were evaluated in 27 patients after aortocoronary bypass surgery and in 13 normal subjects (G-C). Twenty patients (G- 1) had successfully revascularized left anterior descending artery (LAD). In 7 patients (G-2), the revascularization for LAD was not complete.
There was no difference among 3 groups in stroke work index (SWI), left ventricular end-diastolic pressure (LVEDP) and coronary sinus blood flow (CSF) at rest. SWI during exercise in G-2 (44.7±14.7g. M/beat/m2) was significantly lower than that in G-1 and G-C (67.9±15.0, 77.2±17.0g.M/beat/m2) (p＜0.02, p＜0.002). LVEDP during exercise in G2 (32±6mmHg) was significantly higher than that in G-1, G-C (17±7, 13±3mmHg) (p＜0.001, p＜0.001). CSF during exercise in G-2 (160±64ml/min) was significantly lower than that in G-1, G-C (357±79, 290±113ml/min) (p＜0.001, p＜0.002).
These data indicated that left ventricular function during exercise and coronary sinus blood flow reserve for exercise in patient with completely revascularized LAD was significantly better than that in patients with incompletely revascularized LAD.

<< To previous pageTo next page >>

To read the PDF file you will need Adobe Reader installed on your computer.