B William Shragge

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Fourteen patients with atrial fibrillation or flutter and a ventricular rate of greater than or equal to 120 beats/min occurring after cardiac surgery entered a double-blind placebo-controlled conditional crossover trial of intravenous propafenone. Patients randomly received either propafenone (2 mg/kg body weight) or placebo during a 10 minute intravenous(More)
A retrospective review of 64 patients receiving more than 10 units of red cell concentrate plus crystalloid within 12 h revealed two consecutive patterns of elevation of the partial thromboplastin time (PTT). The PTT at 3 to 4 h (PTT3-4) correlated with the number of liters of crystalloid (LC) infused over the first 3 h (PTT3-4 = 37 + 7 LC, r = .7643, p(More)
BACKGROUND Many patients undergoing coronary artery bypass graft (CABG) surgery have risk factors for both atrial fibrillation (AF) and stroke. The left atrial appendage (LAA) is a main source of thrombus coming from the left atrium. LAA occlusion should be tested as a means to reduce future cerebral ischemic events in these patients. METHODS The Left(More)
Cold injury has been suggested as a potential limitation to the use of temperatures below 10 degrees to 15 degrees C in clinical myocardial preservation. The isolated effects of profound hypothermia on myocardial function and energy metabolism were studied in the working rat heart preparation. Each heart was isolated and stabilized; then initial aortic(More)
BACKGROUND AND METHODS Twelve adult male albino rabbits were assigned alternately to normotensive and hypotensive groups to assess the effect of hypovolemic shock on spontaneous correction of dilutional coagulopathy. All animals underwent dilutional exchange transfusion with 200 mL of rabbit RBCs and 5% human albumin. Half the animals were then acutely(More)
he Cardiac Care Network of Ontario (CCN) is a pioneering partnership of health professionals, hospitals and government that focuses on appropriate and timely access to adult cardiac services by patients and their physicians. Established by the Ontario Ministry of Health and Long-Term Care in 1990, CCN advises the Ministry and coordinates the provision of(More)
This health technology assessment examines vascular ultrasound screening for abdominal aortic aneurysm (AAA) in asymptomatic populations. Screening reduces the incidence of AAA ruptures, rates of emergency surgical repair and AAA-attributable mortality in males ages 65 to 74. The benefit of screening women has not been established. Ontario data suggest that(More)