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Electrocardiography as an early cardiac screening test in children with mitochondrial disease.
MedLine Citation:
PMID:  21189931     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To evaluate myocardial conductivity to understand cardiac involvement in patients with mitochondrial disease.
METHODS: We performed retrospective study on fifty-seven nonspecific mitochondrial encephalopathy patients with no clinical cardiac manifestations. The patients were diagnosed with mitochondrial respiratory chain complex defects through biochemical enzyme assays of muscle tissue. We performed standard 12-lead electrocardiography (ECG) on all patients.
RESULTS: ECG abnormalities were observed in 30 patients (52.6%). Prolongation of the QTc interval (>440 ms) was seen in 19 patients (33.3%), widening of the corrected QRS interval in 15 (26.3%), and bundle branch block in four (7.0%). Atrioventricular block, premature atrial contraction and premature ventricular contraction were seen in two patients each (3.5%) and Wolff-Parkinson-White syndrome in one patient (1.8%).
CONCLUSION: Given this finding, we recommend active screening with ECG in patients with mitochondrial disease even in patients without obvious cardiac manifestation.
Authors:
Ran Baik; Jung Hyun Chae; Young Mock Lee; Hoon Chul Kang; Joon Soo Lee; Heung Dong Kim
Publication Detail:
Type:  Journal Article     Date:  2010-05-31
Journal Detail:
Title:  Korean journal of pediatrics     Volume:  53     ISSN:  2092-7258     ISO Abbreviation:  Korean J Pediatr     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-12-30     Completed Date:  2011-07-14     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  101215374     Medline TA:  Korean J Pediatr     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  644-7     Citation Subset:  -    
Affiliation:
Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.
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