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Clinical Trial
Journal Article
Multicenter Study
Research Support, N.I.H., Extramural
Electrocardiographic abnormalities in the first year after heart transplantation.
Journal of Electrocardiology 2014 March
STUDY AIM: Describe ECG abnormalities in the first year following transplant surgery.
METHODS: Analysis of 12-lead ECGs from heart transplant subjects enrolled in an ongoing multicenter clinical trial.
RESULTS: 585 ECGs from 98 subjects showed few with abnormal cardiac rhythm (99% of ECGs were sinus rhythm/tachycardia). A majority of subjects (69%) had either right intraventricular conduction delay (56%) or right bundle branch block (13%). A second prevalent ECG abnormality was atrial enlargement (64% of subjects) that was more commonly left atrial (55%) than right (30%).
CONCLUSIONS: Right intraventricular conduction delay or right bundle branch block is prevalent in heart transplant recipients in the first year following transplant surgery. Whether this abnormality is related to acute allograph rejection or endomyocardial biopsy procedures is the subject of the ongoing clinical trial. Atrial enlargement ECG criteria (especially, left atrial) are also common and are likely due to transplant surgery with subsequent atrial remodeling.
METHODS: Analysis of 12-lead ECGs from heart transplant subjects enrolled in an ongoing multicenter clinical trial.
RESULTS: 585 ECGs from 98 subjects showed few with abnormal cardiac rhythm (99% of ECGs were sinus rhythm/tachycardia). A majority of subjects (69%) had either right intraventricular conduction delay (56%) or right bundle branch block (13%). A second prevalent ECG abnormality was atrial enlargement (64% of subjects) that was more commonly left atrial (55%) than right (30%).
CONCLUSIONS: Right intraventricular conduction delay or right bundle branch block is prevalent in heart transplant recipients in the first year following transplant surgery. Whether this abnormality is related to acute allograph rejection or endomyocardial biopsy procedures is the subject of the ongoing clinical trial. Atrial enlargement ECG criteria (especially, left atrial) are also common and are likely due to transplant surgery with subsequent atrial remodeling.
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