The cause of @entity519 was studied in 21 @entity1 with no previous @entity299 shortly after an episode of @entity1151 . The diagnosis was based on pulmonary angiography demonstrating distinct vascular filling defects or "cutoffs." It was found that virtually all of the @entity519 in @entity1 with previously normal heart and lungs could be accounted for on the basis of shunt-like effect. The magnitude of the shunting did not correlate with the percent of the pulmonary vascular bed occluded nor with the mean pulmonary artery pressure. The shunts tended to gradually recede over about a month after @entity887 . @entity1 without @entity8995 were able to inspire 80-111% of their predicted inspiratory capacities, and this maneuver temporarily diminished the observed shunt. @entity1 with @entity8995 were able to inhale only to 60-69% of predicted inspiratory capacity, and this did not reverse shunting. These data suggest that the cause of right-to-left shunting in @entity1 with @entity1151 is predominantly @entity891 . When the elevation of mean pulmonary artery pressure was compared to cardiac index per unit of unoccluded lung, it fell within the range of @entity120 predicted from published data obtained in @entity1 with exercise in all except one case. This observation suggests that @entity1151 is not important in @entity1 , although these data are applicable only during the time interval in which our @entity1 were studied and in @entity1 receiving heparin.

XXXX in @entity1151 , a clinical study.

@entity1 :: ('9606', 'Species') :: ['Patients', 'humans', 'patients'] @entity8995 :: ('MESH:D054060', 'Disease') :: ['pulmonary infarction', 'pulmonary infarcts'] @entity120 :: ('MESH:D006976', 'Disease') :: ['pulmonary hypertension'] @entity1151 :: ('MESH:D011655', 'Disease') :: ['pulmonary emboli', 'pulmonary vasoconstriction following embolism', 'acute pulmonary embolism'] @entity891 :: ('MESH:D001261', 'Disease') :: ['atelectasis'] @entity519 :: ('MESH:D000860', 'Disease') :: ['hypoxemia'] @entity887 :: ('MESH:D004617', 'Disease') :: ['embolism'] @entity299 :: ('MESH:D006331', 'Disease') :: ['heart or lung disease']
@entity519 :: (MESH:D000860,Disease) :: ['Hypoxemia']
