The importance of frontal QRS-T angle for predicting non-dipper status in hypertensive patients without left ventricular hypertrophy

Tanriverdi Z., Unal B., Eyuboglu M., Tanriverdi T. B., Nurdag A., DEMİRBAĞ R.

CLINICAL AND EXPERIMENTAL HYPERTENSION, cilt.40, sa.4, ss.318-323, 2018 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 4
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1080/10641963.2017.1377214
  • Dergi Adı: CLINICAL AND EXPERIMENTAL HYPERTENSION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.318-323
  • Anahtar Kelimeler: Ambulatory blood pressure monitoring, electrocardiography, frontal QRS-T angle, hypertension, non-dipper status
  • Dokuz Eylül Üniversitesi Adresli: Hayır

Özet

Background: Frontal QRS-T angle is a novel marker of myocardial repolarization, and an increased frontal QRS-T angle associated with adverse cardiac outcomes. Non-dipper hypertension is also associated with adverse cardiac outcomes. This study aimed to investigate the relationship between frontal QRS-T angle and non-dipper status in hypertensive patients without left ventricular hypertrophy (LVH).Methods: This study included 122 hypertensive patients without LVH. Patients were divided into two groups: dipper hypertension and non-dipper hypertension. The frontal QRS-T angle was calculated from 12-lead electrocardiography.Results: Frontal QRS-T angle (47.9 degrees 29.7 degrees vs. 26.7 degrees +/- 19.6 degrees, P<0.001) was significantly higher in patients with non-dipper hypertension than in patients with dipper hypertension. In addition, frontal QRS-T angle was positively correlated with sleeping systolic (r=0.211, P=0.020), and diastolic (r=0.199, P=0.028) blood pressures (BP), even if they were weak. Multivariate analysis showed that the frontal QRS-T angle was independent predictor of non-dipper status (QR: 1.037, 95% CI: 1.019-1.056, P<0.001).Conclusion: Frontal QRS-T angle is independent predictor of non-dipper status in hypertensive patients without LVH.