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Changes in left ventricular repolarization after short-term testosterone replacement therapy in hypogonadal males.

Abstract：

BACKGROUND AND AIM:Evidences suggest that androgen deficiency is associated with sudden cardiac death (SCD). Our purpose was to analyse some electrocardiographic (ECG) markers of repolarization phase in hypogonadal patients either at baseline or after testosterone replacement therapy (TRT). PATIENTS AND METHODS:Baseline and after 6 months of testosterone replacement therapy, 14 hypogonadal patients and 10 age-matched controls underwent a short-term ECG recordings at rest and immediately after a maximal exercise test. The following ECG parameters have been collected: QTe (the interval between the q wave the end of T wave), QTp (the interval between the q wave and the peak of T wave), and Te (the interval between the peak and the end of T wave). RESULTS:At baseline, in the hypogonadal patients, corrected QTe and QTp values were longer at rest than in the controls at rest (p < 0.05), whereas, during the recovery phase, only the QTp remained significantly longer (p < 0.05). After TRT, hypogonadal patients showed an improvement only in Te (p < 0.05). Conversely, any difference between hypogonadal patients and control subjects was found with respect to the markers of temporal dispersion of repolarization phases, except for a worse QTp → Te coherence (p = 0.001) obtained during the recovery phase. CONCLUSIONS:In conclusion, at rest, hypogonadal patients suffer from a stable increase in the myocardial repolarization phase without an increase in its temporal dispersion and, hence, the SCD risk seems to be low.

journal_name

J Endocrinol Invest

journal_title

Journal of endocrinological investigation

authors

Piccirillo G,Moscucci F,Pofi R,D'Alessandro G,Minnetti M,Isidori AM,Francomano D,Lenzi A,Puddu PE,Alexandre J,Magrì D,Aversa A

doi

10.1007/s40618-019-01026-5

subject

Has Abstract

pub_date

2019-09-01 00:00:00

pages

1051-1065

issue

9

eissn

0391-4097

issn

1720-8386

pii

10.1007/s40618-019-01026-5

journal_volume

42

pub_type

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