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Review Article | Volume 4 Issue 1 (, 1998) | Pages 1 - 8
Arterial risk factors and ischemic cerebrovascular events after aortic valve replacement
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1
Department of Cardiac Surgery, University Hospital, University of Wales College of Medicine, Cardiff, United Kingdom.
Under a Creative Commons license
PMID : -7742979
Published
Jan. 2, 1995
Abstract

To assess the association of possible risk factors with ischemic cerebrovascular events after aortic valve replacement (AVR), 619 consecutive patients undergoing AVR with a Medtronic Hall valve between the beginning of December 1979 and the end of December 1992 and surviving the immediate postoperative period were analyzed. Possible risk factors examined were valve lesion, prosthesis size, postoperative functional status, systemic hypertension, cigarette smoking, diabetes, coronary artery disease and atrial fibrillation. There were 53 ischemic cerebrovascular events in 38 patients during 3,174 follow up years, yielding a linearized event rate of 1.7%/patient-year. Significant risk factors in terms of odds ratios (OR) were postoperative hypertension (OR 8.0), postoperative NYHA class III or IV (OR 5.5), postoperative smoking (OR 4.0), diabetes (OR 3.5), preoperative hypertension (OR 2.7) and preoperative smoking (OR 1.8). There was highly significant interaction between postoperative hypertension and postoperative smoking (OR 54.0). Eighty-one percent of patients who suffered events were hypertensive or smoking postoperatively or both. These findings have important implications for postoperative management and for the reporting of ischemic cerebrovascular events after valve replacement.

 

 

 

How to cite: Butchart, E. G., Moreno de la Santa, P., Rooney, S. J., & Lewis, P. A. (1995). Arterial risk factors and ischemic cerebrovascular events after aortic valve replacement. The Journal of heart valve disease4(1), 1–8.

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