Robyn Dunbar

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Examinations of the banding pattern of polytene chromsomes from larval salivary glands of the population in west Africa once thought to be a single species, Simulium (Edwardsellum) damnosum, revealed eight species all within the Nile subgroup of the complex. The following names were proposed: S. (E.) squamosum Enderlein, S. (E.) yahense n.sp., S. (E.)(More)
The dose of protamine necessary to reverse heparin was examined in 60 patients. Half the patients (controls) received a reversal dose of protamine equal to the entire amount of heparin given them, while half received a reversal dose based on a heparin half-life of 2 hours. Postoperative chest drainage for the first 12 hours and for 48 hours was markedly(More)
The effects of an intravenous infusion of nitroglycerin were studied in 20 acutely hypertensive patients during coronary-artery surgery. Eight patients had histories of essential hypertension and six had been treated for it. They were anesthetized with morphine, diazepam, N2O, O2, pancuronium, and enflurane. Control measurements were obtained after(More)
Propranolol therapy has been implicated as a cause of myocardial depression and increased morbidity and mortality in patients undergoing coronary artery surgery. The authors reviewed 169 consecutive patients undergoing cardiac surgery, of whom 143 had been taking propranolol, with regard to preoperative administration of propranolol and intraoperative or(More)
The use of autologous blood transfusion to decrease blood bank requirements and improve coagulation parameters during cardiac surgery is still controversial. This study was undertaken to re-evaluate three methods of autologous blood transfusion. Before bypass, 13 to 15 percent of the patient's estimated blood volume was removed and stored with either CPD or(More)
Profound hypothermia can be a useful adjunct in the intraoperative management of infants and small children undergoing surgical correction of congenital heart defects. A case description of a 5 1/2-month-old male infant with total anomalous pulmonary venous drainage who had successful repair using surface cooling, cardiopulmonary bypass, and pump cooling to(More)