Paul W. Weldner

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BACKGROUND Cardiac surgery patients' hematocrits frequently fall to low levels during cardiopulmonary bypass. METHODS We investigated the association between nadir hematocrit and in-hospital mortality and other adverse outcomes in a consecutive series of 6,980 patients undergoing isolated coronary artery bypass graft surgery. The lowest hematocrit during(More)
BACKGROUND Randomized trials comparing coronary artery bypass graft surgery (CABG) with percutaneous coronary interventions (PCIs) for patients with multivessel coronary disease (MVD) report similar long-term survival for CABG and PCI. These studies used a highly selected population of patients and providers, and their results may not be generalizable to(More)
Bleeding after insertion of ventricular assist devices is a common problem which carries a major risk of immediate and late complications. We evaluated the safety and efficacy of aprotinin in six patients undergoing staged heart transplantation and compared the results with those of six patients who received no aprotinin. The groups did not differ(More)
BACKGROUND There is no consensus on the optimal period during which to assess death after coronary artery bypass graft (CABG) surgery. Three measures are commonly used: in-hospital, 30-day, and procedural (either in-hospital or 30-day) mortality. We used a regional database to calculate the CABG mortality rate using each of these mortality measures. (More)
BACKGROUND Neurobehavioral impairment is a common complication of coronary bypass surgery. Cerebral microemboli during cardiopulmonary bypass (CPB) are a principal mechanism of cognitive injury. The aim of this work was to study the occurrence of cerebral embolism during CPB and to evaluate the effectiveness of evidence-based CPB circuit component and(More)
OBJECTIVES The goal of this study was to assess the concordance between the American College of Cardiology (ACC) and the American Heart Association (AHA) 2004 Guideline Update for Coronary Artery Bypass Graft Surgery and actual clinical practice. BACKGROUND There is substantial geographic variability in the population-based rates of coronary artery bypass(More)
Widespread adoption of minimally invasive mitral valve repair and replacement may be fostered by practice consensus and standardization. This expert opinion, first of a 3-part series, outlines current best practices in patient evaluation and selection for minimally invasive mitral valve procedures, and discusses preoperative planning for cannulation and(More)
Widespread adoption of minimally invasive mitral valve repair and replacement may be fostered by practice consensus and standardization. This expert opinion, first of a 3-part series, outlines current best practices in patient evaluation and selection for minimally invasive mitral valve procedures, and discusses preoperative planning for cannulation and(More)
Minimally invasive mitral valve operations are increasingly common in the United States, but robotic-assisted approaches have not been widely adopted for a variety of reasons. This expert opinion reviews the state of the art and defines best practices, training, and techniques for developing a successful robotics program.
From April 1987 to September 1993, 60 infants underwent a Norwood operation for complex congenital heart disease including hypoplastic left heart syndrome (n = 41), ventricular septal defect and subaortic stenosis with aortic arch interruption/severe coarctation (n = 7), complex single right ventricle with subaortic stenosis (n = 8), critical aortic(More)