Abstract
Objective To summarize the management of cardiopulmonary bypass （CPB） for infants below 10 kilograms with congenital heart diseases. Methods From Jan 2010 to Apr 2011 ,the clinical datas of 122 infants aged from 1.5 months to 2 years with body weight 3 to 10 kilograms,who underwent open heart surgery under mild or moderate hypothermia CPB were retrospectively analyzed. Results Among all the 122 infants, CPB time was 13 - 118 min [ （62. 69± 21.48 ） min], aortic cross-clamp time was 0 to 86 min [ （ 35.47 ± 19.51 ） min]. All patients were spontaneous resuscitation and successfully weared from the machine, no severe complications associated with CPB occurred, 3 infants died （ 2. 46 %, 3/122 ） after operation. Conclusion Using membrane oxygenator, circuit tubing and artery filter with less priming, and highflow perfusion during CPB, maintaining hemodynamics stable, holding reasonable hematocrit and colloid osmotic pressure, good myocardial protection and ultrafiltration are the significant elements of the management of CPB in infants with weight less than 10 kilograms. Key words: Congenital heart diseases; Cardiopulmonary bypass; Body weight; Infants
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