Impact of blood pressure lowering on ventricular repolarization heterogeneity in patients with newly diagnosed hypertension       
Yazarlar (2)
Mehmet Eyüboğlu
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Ataç ÇELİK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı BLOOD PRESSURE MONITORING
Dergi ISSN 1359-5237 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili Türkçe
Basım Tarihi 12-2021
Cilt No 26
Sayı 6
Sayfalar 407 / 412
DOI Numarası 10.1097/MBP.0000000000000551
Makale Linki http://dx.doi.org/10.1097/mbp.0000000000000551
Özet
Objective Frontal plane QRS-T (fQRS-T) angle is a marker of ventricular repolarization heterogeneity and increased fQRS-T angle is associated with arrhythmias, adverse events and mortality. However, little is known about the importance and usefulness of fQRS-T angle in hypertensive patients. The present study aimed to investigate the association between blood pressure (BP) levels and fQRS-T angle. The main goal was to demonstrate whether BP lowering has a favorable effect on fQRS-T angle in hypertensive patients. Methods This study included 392 newly diagnosed hypertensive patients who underwent antihypertensive therapy. Responders and nonresponders to antihypertensive therapy were compared regarding baseline and post-treatment fQRS-T angle. fQRS-T angle was calculated as the absolute difference between QRS and T wave axes that were obtained from electrocardiography. Response to treatment was defined as achieving BP levels <140/90 mmHg. Results At the 1-month follow-up visit, responders had significantly lower fQRS-T angle compared to nonresponders despite the similar baseline fQRS-T angle (baseline: 57°±18.2° vs.56.6°±16.3°; P=0.819, at 1month: 36.9°±13.7 vs.53.5°±15.6°; P<0.001). Moreover, after 3months of antihypertensive treatment, both responders at 1month and 3months had significantly lower fQRS-T angle compared to nonresponders (34.8°±13.3° vs. 35.4°±12.9° vs. 52.3°±13.9°; P<0.001). Furthermore, a significant moderate positive correlation was observed between systolic BP and fQRS-T angle (r:0.797; P<0.001), and between diastolic BP and fQRS-T angle (r:0.761; P<0.001). Conclusion In the present study, a significant decrease in fQRS-T angle was observed following BP lowering throughout the study period. Therefore, fQRS-T angle may be useful in the monitoring of antihypertensive treatment. Blood Press Monit 26: 407-412.
Anahtar Kelimeler
Antihypertensive treatment | Blood pressure lowering | Electrocardiography | Frontal plane QRS-T angle | Hypertension