Victor Parsonnet

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The purpose of the study was to devise a method of stratifying open-heart operations into levels of predicted operative mortality, using objective data that are readily available in any hospital. Following univariate regression analysis of 3,500 consecutive operations, 14 risk factors were chosen that met these conditions. A few factors were excluded(More)
The procedure of lead removal has recently matured into a definable, teachable art with its own specific tools and techniques. It is now time to recognize and formalize the practice of lead removal according to the current methods of medicine and the health care industry. In addition, since at this time the only prospective scientific study of lead(More)
OBJECTIVES The purpose of this study was to evaluate the safety and effectiveness of pacemaker lead extraction with the excimer sheath in comparison to nonlaser lead extraction. BACKGROUND Fibrotic attachments that develop between chronically implanted pacemaker leads and to the venous, valvular and cardiac structures are the major obstacles to safe and(More)
OBJECTIVES The purpose of this consensus effort was to define and prioritize the importance of a set of clinical variables useful for monitoring and improving the short-term mortality of patients undergoing coronary artery bypass graft surgery (CABG). BACKGROUND Despite widespread use of data bases to monitor the outcome of patients undergoing CABG, no(More)
BACKGROUND Acute renal failure occurring in the postoperative period, requiring dialysis after cardiac surgery is an important risk factor for an early mortality, and the overall mortality of this complication is as high as 40% to 60%. Dialysis in the early postoperative period is often complicated by acute hemodynamic, metabolic, and hematologic effects(More)
Nine hundred fifty patients who received three modes of primary pacemaker systems (581 dual-chamber universal [DDD], 84 atrioventricular-sequential ventricular-inhibited [DVI] and 285 ventricular-inhibited [VVI]) over 12 years were studied retrospectively to determine the effect of pacing mode on patient longevity and the subsequent development of chronic(More)
An examination of 632 consecutive pacemaker implantations performed at a single institution by 29 implanting physicians over a 5 year period was made to determine which factors affected the 37 perioperative complications experienced. The introducer method of vein access contributed significantly to the complication rate, which was also related to the number(More)
BACKGROUND Evaluations of the cardiac-surgery mortality rates of hospitals and surgeons can be fair and realistic only when the observed mortality rates are compared with expected rates with preoperative risk factors taken into account. Risk-approximation calculations also can assist patients and physicians in discussing the risk of cardiac surgery,(More)
BACKGROUND Pulmonary artery perforation is a rare but often fatal complication of the pulmonary artery catheter occurring in cardiovascular operations and at catheterization facilities. We used our experience and a review of the literature to formulate diagnostic and management strategies. METHODS During a 13-year period, 12 patients with pulmonary artery(More)