Key result
Early repolarization pattern in athletes links to lower LV GLS and higher mechanical dispersion.
Why the study?
Despite structural changes in subjects with early repolarization pattern, whether functional left ventricular changes occur was not known.
Is early repolarization pattern associated with impaired subclinical left ventricular function measured by 2D-STE in athletes?
Case-Control (n=100)
Is early repolarization pattern associated with impaired subclinical left ventricular function measured by 2D-STE in athletes?
Athletes with early repolarization pattern exhibit subclinical impairment in left ventricular longitudinal function and increased mechanical dispersion compared to those without the pattern.
ERP was associated with subclinical LV impairment in athletes; leaves open whether this is adaptive or warrants prospective monitoring.
INTRODUCTION: Early repolarization pattern (ERP) can exist a silent substrate for arrhytmic events in accordance with the previous studies which have shown there has been evidence of morphological changes in left ventricle (LV) in ERP subjects. Despite structural changes in ERP subjects, it has not exactly known whether a change in LV functional parameters occur in ERP. The aim of our study was to investigate LV functional parameters in ERP athletes evaluated by 2D- speckle tracking echocardiography (2D-STE). METHOD: In this study, athletes with ERP (n = 50) and athletes without ERP (n = 50) were recruited between April 2018 and September 2018. For each case, 2D- TTE and 2D- STE evaluation were performed by the same cardiologist. RESULTS: Left ventricle mean global longitudinal strain (GLS) (P < .001) and GLS at all apical chamber views (P < .001), longitudinal peak systolic strain rate (SRS) at A3C (P: .011), early diastolic strain rate (SRE) at A3C (P < .001) and late diastolic strain rate (SRA) at A3C (P: .034) in the ERP athletes were significantly lower than those in the athletes without ERP. LV basal segment circumferential SRS (P: .002) and SRE (P: .006) were significantly lower in ERP athletes compared to athletes without ERP. LV mechanical dispersion was significantly higher in ERP athletes compared to athletes without ERP (P < .001). CONCLUSION: Our study suggests ERP can be more associated with impaired LV longitudinal function than circumferential function. In addition, both LV inferolateral region and basal segment can be more affected functionally in ERP athletes.
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Çöllüoğlu et al. (2021) conducted a case-control in Early repolarization pattern in athletes (n=100). Early repolarization pattern vs. Athletes without early repolarization pattern was evaluated on Left ventricle mean global longitudinal strain (GLS) (p=<.001). Athletes with early repolarization pattern had significantly lower left ventricle mean global longitudinal strain (P<.001) and higher mechanical dispersion (P<.001) than athletes without ERP.
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