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Biomedical subjects

M Shigenobu

Publications and source records attributed to M Shigenobu.

At least 73 records · Page 4Linked to original sources
PubMed1982

The left ventricular eccentricity as a predictor of postoperative cardiac performance in valvular heart diseases.

A clear correlation expressed by the following equation was observed between the preoperative left ventricular end-systolic eccentricity (epsilon s) and the percentage change of the left ventricular dimension (% delta D) in chronic valvular heart diseases: % delta D = 88.37 epsilon s - 48.16 (r = 0.66, p less than 0.001). Therefore, epsilon s may function as an index for predicting the postoperative cardiac performance independent of the affected valvular locations and the morphology of the lesions.

Aortic Valve↗
PubMed1982

Two-dimensional echocardiographic estimation of the size of the mitral valve annulus.

The diameter of the mitral annulus as measured on the long axis by two-dimensional echocardiogram was found to correlate well with the size of the sewing ring used to replace the mitral valve in 35 consecutive patients. The size of the prosthesis which was used could be predicted within 1 mm of error in 83% of the mitral stenosis (MS) patients and in 76% of the mitral regurgitation (MR) patients in the study. Preoperative echocardiographic estimation of the size of the mitral valve annulus and prediction of the sewing ring size of the prosthetic valve used could reduce the incidence of valve prosthesis-patient mismatch.

Adult↗