Use of intra-aortic balloon pumping (IABP) in clinical cardiac surgery and management of patients with IABP
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One hundred thirty eight patients were reviewed which required IABP assist. Sixty nine (84 per cent) of 82 patients who had been able to come off cardiopulmonary bypass despite increasing pharmacologic support survived operation and 56 patients (68 per cent) discharged hospital. Twenty three (75 per cent) of 31 patients who took for elective coronary artery surgery as extremely high risk because of extensive three vessel coronary artery disease and severely compromised left ventricular function discharged hospital. In summary, hospital death was 35 per cent, late death 12 per cent and long term survivors 54 per cent. Severe complication concerned with inserting balloon catheter occurred in two cases (1.4 per cent) which were abdominal aortic dissection and laceration of iliac artery. At the present time, the primary indication for IABP is in assistance of the open heart surgical patient. There are three important factors in successfully managing the patients with IABP. First, begin IABP assist as soon as possible if indicated. Second, keep an adequate circulating volume with mean left atrial pressure being maintained around 20 mmHg and cardiac index at 2.1 L/min./M or greater. Third, improve the peripheral vascular circulation, which might need peripheral vasodilator.
Key Wordsintra-aortic balloon catheter inability in weaning from cardiopulmonary bypass poor left ventricular function reducing left ventricular afterload augmenting diastolic pressure left atrial pressure improvement of peripheral circulation
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