The cause of low voltage QRS complex in XXXX . Pericardial effusion or @entity1374 ?

@entity2294 @entity1 @entity1375 @entity1374
In order to clarify the cause of low voltage QRS complex seen on ECG (low voltage), thyroid hormones, LDH isozyme and @entity2294 ( @entity2294 ) were studied in 39 @entity1 with @entity1375 . Low voltage and @entity2294 were found in 12 of 39 (30.8%) and 12 of 27 (44.4%), respectively. Serum T4 in @entity1 with low voltage (Group 1) was significantly lower than that in @entity1 without low voltage (Group 2) (T4 1.4 +/- 1.7 vs 2.8 +/- 2.3 micrograms/dl, p less than 0.05). Group 1 had a higher incidence of large amounts of @entity2294 than Group 2 (6/8 vs 1/19, p less than 0.002). However, there was no significant difference in thyroid hormone levels between @entity1 with and without @entity2294 . No significant difference in LDH isozyme pattern was found among the groups. Low voltage without @entity2294 was found in only one @entity1 . Two @entity1 with low voltage and @entity2294 demonstrated that in spite of the presence of large @entity2294 , low voltage improved after thyroid replacement therapy. By multi-variate analysis, low voltage was related to large @entity2294 , @entity1 age and low T4 levels. From these results, it was suggested that in @entity1375 low voltage was brought about by a combination of both severe @entity1374 and large @entity2294 . In addition, elderly @entity1 over 60 years had low voltage more frequently than did @entity1 under 59 years.
