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Nghiên cứu đo lường bão hõa oxy máu tĩnh mạch trộn so2 ở bệnh nhân phẫu thuật tim có nguy cơ cao
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Abstract
Using the Swan-Ganz catheter to mesure SO2and evaluate the hemodynamic outcomes in 112 high risk cardiac surgical patients. The variables are SO2indice; ventilation duration; and ICU stay. The variation of SO2values in high risk cardiac surgical patients was regressive (but mean values >55%)from preoperation (T0)to postoperation (Toff);p<0,001. The minimal ventilation duration was 5 hours, the maximal ventilation duration was 192hours (8 days), the average duration was 22,56hours. 93,8% patients had the ventilation duration less than 48hours; and 6,2% patients had the ventilation durationmore than 48hours. The minimal ICU stay was 18hours, the maximal ICU stay was 240 hours (10days), the average ICU stay was 50,88hours. 92,9% patients had the ICU stay less than 72 hours; and 7,1% patients had the ICU stay more than 71hours. SO2value ≥ 55 % was the approval prediction in stable hemodynamic state in high risk cardiac surgical patients for maintaining the balance between oxygen delivery and oxygen consumption in postoperation periods. The treatment guided by SO2monitoring in there patients helping to reduce the ventilation duration, and the ICU stay.
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