Masked hypertension is related to alteration of myocardial arrhythmia Parameters

Autor: Ömer Çağlar Yılmaz, Selçuk Ozkan, Bunyamin Yavuz
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Clinical and Experimental Hypertension, Vol 43, Iss 1, Pp 81-84 (2021)
Druh dokumentu: article
ISSN: 1064-1963
1525-6006
10641963
DOI: 10.1080/10641963.2020.1812625
Popis: Background Imbalance in autonomic nervous system and impaired myocardial repolarization have been shown to increase the risk for arrhythmias in patients with arterial hypertension. This study evaluated the effects of masked hypertension on QT interval dynamicity. Methods The study group consisted of 108 consecutive patients with masked hypertension and 102 control subjects. Twenty-four-hour Holter monitoring was performed before anti-hypertensive treatment. CONTEC holter software was used to calculate HRV and QT dynamicity parameters. All subjects had a complete history, laboratory examination, and transthoracic echocardiography. Results There was no significant difference in age-gender distribution between patients and controls. Non-sustained VT was present in four patients (2.9%). SDNN, RMSSD, PNN50, LFnu, HFnu were significantly decreased in masked hypertension, whereas LF/HF ratio was significantly increased. QT/RR slopes over 24 hours were significantly increased in masked hypertension for QT end and QT apex (QTapex/RR: 0,15 ± 0,12 vs 0,27 ± 0,18 p
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