Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Jun 1996
Methylene blue does not neutralize heparin after cardiopulmonary bypass.
It was hypothesized that methylene blue could neutralize heparin in patients after cardiopulmonary bypass and become an alternative to protamine. ⋯ Methylene blue does not neutralize heparin after cardiopulmonary bypass.
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J. Cardiothorac. Vasc. Anesth. · Jun 1996
Randomized Controlled Trial Clinical TrialBlood conservation in small adults undergoing valve surgery.
A substantial reduction in transfusion requirements for cardiac surgical procedures has been reported. Many of these reports have been described in patients undergoing coronary artery bypass grafting. Patients suffering from rheumatic heart disease in India are usually small and also anemic. This study was conducted to assess blood conservation methods for cardiac valve surgery in this subset of patients. ⋯ In this unique group of patients whose mean body weight was only 45 kg, autologous blood alone did not decrease blood bank requirements but when combined with a cell saver and membrane oxygenator greatly reduced the need for donor blood.
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J. Cardiothorac. Vasc. Anesth. · Jun 1996
Age-related differences in heparin sensitivity and heparin-protamine interactions in cardiac surgery patients.
The present study was conducted to determine how children and adults differ (it at all) with respect to sensitivity to heparin activity and heparin-protamine interactions during cardiac surgery requiring cardiopulmonary bypass (CPB). ⋯ Pre-school children are less sensitive to heparin but also display a wider range of sensitivity. The data in this study support the use of 300 U/kg of heparin before CPB in patients > or = 5 years but suggest that heparin requirements may be greater in the younger patient who may require as much as 500 U/kg to achieve what is believed to be an appropriate target heparin concentration for initiating CPB.
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J. Cardiothorac. Vasc. Anesth. · Jun 1996
Randomized Controlled Trial Clinical TrialEffects of human atrial natriuretic peptide in patients after coronary artery bypass surgery.
To determine the effects of synthetic human atrial natriuretic peptide (ANP) on renal function, hemodynamics, and levels of vasoactive peptides when infused in the immediate postoperative period after coronary bypass surgery in patients with normal kidney function. ⋯ The results of this study show that ANP increases diuresis, natriuresis, and glomerular filtration in the immediate postoperative period after coronary bypass surgery.