Comparison of risk factor and left ventricular stroke work index as predictors of cardiac complications in vascular surgery.
The peak left ventricular stroke work index developed in response to rapid volume infusion was calculated in 34 patients undergoing either aorto-iliac or peripheral vascular surgery. The average preoperative maximum stroke work index in patients recovering without cardiac complication was 0.47 (+/- 0.2) J/m2 compared with a mean value of 0.28 (+/- 0.14) J/m2 in patients with perioperative cardiac complications. This difference was significant (P less than 0.01). Clinical cardiac risk analysis identified a group of high risk patients in which more than half developed cardiac complications and a low risk group in which no cardiac complications were observed. There was a significant difference in maximum stroke work indices in these two groups.
Loughlin
V
V
Lagan Valley Hospital, Lisburn, Northern Ireland.
Beniwal
J S
JS
Cassidy
K
K
Russell
C
C
Lalsingh
R
R
D000368:Aged; D004562:Electrocardiography; D005260:Female; D006331:Heart Diseases / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology*; D011446:Prospective Studies; D012307:Risk Factors; D013318:Stroke Volume; D014656:Vascular Surgical Procedures