Anaerobic metabolism in XXXX undergoing intra-aortic balloon counterpulsation for @entity1455 .

@entity1 @entity1455 @entity880
To find the best predictors of outcome for @entity1 undergoing intra-aortic balloon counterpulsation (IABP) for @entity1455 , we prospectively studied 30 consecutive @entity1 by examining hemodynamic parameters and cardiac @entity880 extraction ratios before the procedure. 1 hour after and then every 6 hours for 3 days. Complete hemodynamic data were obtained from the recordings of Swan-Ganz catheterization. Blood samples were drawn from the peripheral artery, central vein, pulmonary artery wedge position (PAW) and right atrium (RA) to quantify @entity880 levels. The simplified @entity880 extraction ratio was defined as the concentration of @entity880 in RA--the concentration of @entity880 in PAW/the concentration of @entity880 in PAW. The traditional systemic @entity880 production ratio was defined as the concentration of @entity880 in the central vein--the concentration of @entity880 in the peripheral artery/the concentration of @entity880 in the peripheral artery. Of the 30 @entity1 studied, 19 died of @entity1455 , (group 1), while the surviving 11 @entity1 formed group 2. The @entity880 extraction ratios at each of the time periods after the procedure were all significantly different, while the differences in the systemic @entity880 production ratio and hemodynamic parameters, including the systemic arterial pressure, cardiac output, cardiac index and PAW pressure, became significant at varying times after IABP. In group 2, the @entity880 extraction ratios 1 hour after IABP and later were all significantly higher than at baseline. This trend was not seen in group 1.(ABSTRACT TRUNCATED AT 250 WORDS)
