Stephen D . Surgenor

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BACKGROUND Exposure to red blood cell (RBC) transfusions has been associated with increased mortality after cardiac surgery. We examined long-term survival for cardiac surgical patients who received one or two RBC units during index hospitalization. METHODS Nine thousand seventy-nine consecutive patients undergoing coronary artery bypass graft, valve, or(More)
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 We have recently shown that intraoperative bacterial transmission to patient IV stopcock sets is associated with increased patient mortality. In this study, we hypothesized that bacterial contamination of anesthesia provider hands before patient contact is a risk factor for direct intraoperative bacterial transmission. METHODS(More)
BACKGROUND Chronic obstructive pulmonary disease (COPD) is associated with increased in-hospital mortality in patients undergoing coronary artery bypass surgery (CABG). Long-term survival is less well understood. The present study examined the effect of COPD on survival after CABG. METHODS AND RESULTS We conducted a prospective study of 33,137 consecutive(More)
Objective.We tested the hypothesis that a monitoring display proposed by Blike et al. improves the performance of anesthesiologists. We measured the performance of anesthesiologists using the new display and compared it to their performance with at raditional display. We studied three different displays on how they affected recognition and differentiation(More)
BACKGROUND Hemodilutional anemia during cardiopulmonary bypass (CPB) is associated with increased mortality during coronary artery bypass graft (CABG) surgery. The impact of intraoperative red blood cell (RBC) transfusion to treat anemia during surgery is less understood. We examined the relationship between anemia during CPB, RBC transfusion, and risk of(More)
AIM To compare the quality between 2 commonly used sedation practices for upper endoscopic ultrasound (EUS) by using expert observational analysis of the sedation practice. METHODS After institutional review board approval, 50 adults undergoing EUS had videotape observation of the procedural sedation: 25 received benzodiazepine/opiate administered by the(More)
Objective. This study tests the hypothesis that a graphical object display (a data display consisting of meaningful shapes) will affect the ability of anesthesiologists to perform a diagnostic task rapidly and correctly. The diagnostic tasks studied were recognition and differentiation of five etiologies of shock – anaphylaxis, bradycardia, myocardial(More)
BACKGROUND Anemia in the critically ill patient population is common. This anemia of critical illness is a distinct clinical entity characterized by blunted erythropoietin production and abnormalities in iron metabolism identical to what is commonly referred to as the anemia of chronic disease. FINDINGS As a result of this anemia, critically ill patients(More)
UNLABELLED Avoidance of tachycardia is a commonly described goal for anesthetic management during coronary artery bypass graft (CABG) surgery. However, an association between increased intraoperative heart rate and mortality has not been described. We conducted an observational study to evaluate the association between preinduction heart rate (heart rate(More)