Evaluation of Global Left Ventricular Systolic Function in Newly Diagnosed Dipper and Non-dipper Hypertensive Patients by Strain Analysis Methods Yeni Tanı Dipper ve Non-dipper Hipertansif Hastalarda Strain Analiz Metoduyla Sol Ventrikül Global Sistolik Fonksiyonlarının Değerlendirilmesi


Çakal S., Çakal B.

Turkiye Klinikleri Cardiovascular Sciences, vol.33, no.2, pp.71-77, 2021 (Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.5336/cardiosci.2021-81187
  • Journal Name: Turkiye Klinikleri Cardiovascular Sciences
  • Journal Indexes: Scopus, Academic Search Premier, EMBASE, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.71-77
  • Keywords: Dipper, Hypertension, Mean arterial pressure, Non-dipper, Strain
  • Istanbul Medipol University Affiliated: Yes

Abstract

Objective: Non-dipper hypertension has been associated with enhanced target organ damage and adverse cardiovascular outcomes. The effect of dipper and non-dipper status on cardiac target organ damage has not been comprehensively investigated by two-dimensional (2D) strain echocardiography. We aimed to investigate myocardial deformational strain parameters in dipper and non-dipper untreated hypertensive patients. Material and Methods: We included 42 newly diagnosed hypertensive patients without a previous history of cardiovascular disease and coexisting chronic disease. Study population consisted of two groups of patients, 23 dipper patients and 19 non-dipper patients. Global longitudinal strain (GLS), radial strain and circumferential strain analysis were measured by 2D speckle tracking method. Results: The study population included 42 patients (15 male) with a mean age of 54.5±9 years. The assessment of left ventricular (LV) systolic function by GLS showed decreased values in non-dippers compared with dippers (-18.13±2.07 vs. -13.7±1.95; p=0.001). But no significant intergroup differences were observed in circumferential and radial strain. The analysis showed that night-time mean arterial pressure (MAP), nighttime systolic and diastolic blood pressures, 24-hr systolic blood pressure, dipping rate and nocturnal reduction rate of MAP were the parameters that correlated with GLS. Only dipping rate was independently associated with LV GLS. Conclusion: An isolated non-dipper BP was found to cause impaired LV systolic function detected by myocardial strain.