Pulmonary artery diastolic and wedge pressure relationships in XXXX and injured @entity1 .

@entity1 @entity3124 @entity71051 @entity120
To study pulmonary artery wedge pressure (PAWP) and pulmonary artery diastolic pressure ( @entity71051 ) relationships, we measured these simultaneously with cardiac outputs 1922 times in 128 @entity1 who were @entity3124 or in an intensive care unit. In 356 (18.5%) of the readings, the PAWP exceeded the @entity71051 , indicating that the PAWP reading might be erroneous. In 106 (5.5%) of these readings, the PAWP was 6.0 mm Hg or more higher than the @entity71051 , indicating that the PAWP was almost certainly erroneous. In virtually all instances in which this discrepancy was recognized, changing the position of the catheter tip provided a PAWP value equal to or lower than the @entity71051 . On the other extreme, in 49 (30%) of the @entity1 , the @entity71051 was 6.0 mm Hg or more higher than the PAWP. The pulmonary vascular resistance in these @entity1 averaged (+/- SD) 257 +/- 145 dyne/s/cm-5 (normal, 80 to 160 dyne/s/cm-5). The mean pulmonary vascular resistance in the other 74 @entity1 was significantly lower (158 +/- 72 dyne/s/cm-5). The mortality rate with the increased @entity71051 -PAWP gradients was 59% (24/49). This was significantly higher than the mortality rate (34%, or 27/79) seen with lower PAWP- @entity71051 gradients. Thus, the relationship between the @entity71051 and PAWP should be examined closely in @entity3124 @entity1 . A PAWP higher than the @entity71051 indicates that the PAWP measurement may be erroneous. On the other hand, if the @entity71051 exceeds the PAWP by 6.0 mm Hg or more, the @entity1 has probably developed @entity120 and has a much poorer prognosis.
