Ten @entity1 underwent cardiac operations during which @entity296 was provided by systemic @entity2332 , @entity299 . The duration of @entity63 ranged from 45 to 142 minutes (mean, 84.2 +/- 36.2 minutes). Two serial specimens (preischemic and @entity63 ) were obtained from the right atrium and the left ventricle, respectively; thus, a total of 40 biopsy specimens was obtained from these 10 @entity1 . A combination of grading of @entity63 and stereological morphometric measurement of mitochondria was performed to assess the effectiveness of @entity296 . Our findings from the mitochondrial score studies (grading of @entity63 ) were as follows. In the right atrium, the average mitochondrial score rose from 0.337 +/- 0.235 in the preischemic stage to 1.969 +/- 0.492 in the @entity63 stage. In contrast, the average mitochondrial score for the left ventricle was only elevated from 0.380 +/- 0.161 to 1.353 +/- 0.396. The difference between preischemia of the right atrium and left ventricle is not statistically significant, but the difference between @entity63 of these chambers is significant (p less than 0.01). Our stereological morphometric studies revealed that in the left ventricle, the average mitochondrial surface area was 0.316 +/- 0.046 micron 2 in the preischemic stage and 0.347 +/- 0.073 micron 2 in the @entity63 stage, a 9.8% increase in mitochondrial size (not significant). In contrast, the mitochondrial surface area of the right atrium showed a mean increase of 65.8%, from 0.231 +/- 0.038 micron 2 in the preischemic stage to 0.383 +/- 0.057 micron 2 in the @entity63 stage (p less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)

Comparison of the effectiveness of XXXX in right atrium and left ventricle.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity296 :: ('MESH:D009202', 'Disease') :: ['myocardial preservation'] @entity63 :: ('MESH:D007511', 'Disease') :: ['ischemic injury', 'ischemic', 'ischemia'] @entity299 :: ('MESH:D006331', 'Disease') :: ['topical cardiac cooling, and cold blood cardioplegia'] @entity2332 :: ('MESH:D007035', 'Disease') :: ['hypothermia']
@entity296 :: (MESH:D009202,Disease) :: ['myocardial preservation']
