Usefulness of fragmented QRS in hypertensive patients in the absence of left ventricular hypertrophy


Eyuboglu M., Karabag Y., Karakoyun S., Senarslan O., Tanriverdi Z., AKDENİZ B.

JOURNAL OF CLINICAL HYPERTENSION, vol.19, no.9, pp.861-865, 2017 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 9
  • Publication Date: 2017
  • Doi Number: 10.1111/jch.13051
  • Journal Name: JOURNAL OF CLINICAL HYPERTENSION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.861-865
  • Keywords: fibrosis, fragmented QRS, hypertension, BLOOD-PRESSURE, ECG, PREVALENCE, MORTALITY, COMPLEX, EVENTS
  • Dokuz Eylül University Affiliated: Yes

Abstract

In the absence of left ventricular hypertrophy, importance of fragmented QRS complex (fQRS) in individuals with hypertension is unknown. The authors aimed to evaluate the relationship between blood pressure levels and fQRS in the absence of left ventricular hypertrophy. A total of 548 never-treated patients who underwent 24-hour ambulatory blood pressure monitoring were enrolled. The frequency of fQRS was significantly higher in patients with hypertension than normotension (36.4% vs 17.6%, P<.05). Multivariate logistic regression analysis revealed that systolic blood pressure is significantly associated with presence of fQRS on electrocardiography (odds ratio, 0.931; 95% CI, 0.910-0.9521 [P<.001]) even after adjusting for other confounding factors. Receiver operating characteristic analysis revealed a cutoff value of 147.65mmHg for systolic blood pressure to predict presence of fQRS (sensitivity: 51%, specificity: 99%, area under the curve=0.764; 95% CI, 0.717-0.811 [P<.001]). fQRS may be a sign of increased blood pressure and may predict higher fibrotic burden in patients with hypertension.