Left ventricular diastolic dysfunction in newly diagnosed untreated hypertensive patients

Francesco Fici, Dilek Ural, Sahin Tayfun, Guliz Kozdag, Rita Facchetti, Gianmaria Brambilla, Raffaella Dell'Oro, Guido Grassi, Giuseppe Mancia

Research output: Contribution to journalArticle

Abstract

Essential hypertension is characterized by a left ventricular dysfunction. However, the majority of the studies performed so far investigated patients under drug treatment and/or with concomitant diseases, such as obesity, diabetes, metabolic syndrome or coronary heart disease, which per se may affect diastolic function independently on the blood pressure elevation. The present study aimed at investigating left ventricular diastolic function in untreated, uncomplicated and newly diagnosed hypertensive patients by employing both routine echo-Doppler and pulse tissue-Doppler technique. Data were collected in 86 middle-aged essential hypertensive patients and in 18 sex-matched normotensive controls. At the echo-Doppler approach, about half of the hypertensive patients displayed a diastolic dysfunction (n = 44, E/A: 0.79 ± 0.02). They showed body mass index values slightly greater than hypertensive patients without diastolic dysfunction but superimposable blood pressure values and metabolic variables. When assessed via the pulse tissue-Doppler approach, patients with a reduced E/A displayed an Em/Am ratio significantly lower than patients without diastolic dysfunction and control subjects. This was the case when the data were related to the lateral and septal mitral annulus or averaged together. Furthermore, whereas myocardial systolic peak velocity (Sm) was lower in hypertensive patients than in control subjects, no significant between-groups difference in E/Em ratio was observed. Differently from the data obtained via the echo-Doppler approach, the tissue-Doppler method in patients without diastolic dysfunction showed a significant higher deceleration and isovolumetric relaxation times, with a lower Em velocity compared with the normotensive subjects. At the stepwise multiple regression analysis E/A ratio and E'/A' values were related with left ventricular mass index and body mass index after correction for age. These data provide evidence that diastolic dysfunction is of frequent detection in the earlier uncomplicated phases of the disease and that tissue Doppler detects an initial impairment of left ventricular relaxation in the patients in which at echo Doppler is still normal.

Original languageEnglish
Pages (from-to)331-337
Number of pages7
JournalBlood Pressure
Volume21
Issue number6
DOIs
Publication statusPublished - Dec 2012

Keywords

  • Echo-Doppler technique
  • Hypertension
  • Left ventricular diastolic dysfunction
  • Pulse wave tissue Doppler analysis

ASJC Scopus subject areas

  • Internal Medicine
  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Left ventricular diastolic dysfunction in newly diagnosed untreated hypertensive patients'. Together they form a unique fingerprint.

  • Cite this

    Fici, F., Ural, D., Tayfun, S., Kozdag, G., Facchetti, R., Brambilla, G., Dell'Oro, R., Grassi, G., & Mancia, G. (2012). Left ventricular diastolic dysfunction in newly diagnosed untreated hypertensive patients. Blood Pressure, 21(6), 331-337. https://doi.org/10.3109/08037051.2012.686179