Blood pressure impact on left ventricular geometry in chronic haemodialysis patients

Bratislavske Lekarske Listy
|November 19, 2013
PubMed

Insights

Twenty-four-hour blood pressure significantly impacts left ventricular mass and wall thickness in chronic haemodialysis patients. However, it did not affect left ventricular ejection fraction or atrial size.

Area of Science:

  • Nephrology
  • Cardiology
  • Hypertension Research

Background:

  • Left ventricular hypertrophy (LVH) is a common complication in patients undergoing chronic haemodialysis.
  • LVH in this population is multifactorial, with blood pressure playing a significant role.

Purpose of the Study:

  • To retrospectively evaluate the relationship between 24-hour ambulatory blood pressure monitoring (ABPM) and left ventricular (LV) geometry and function in chronic haemodialysis patients.

Main Methods:

  • Fifty chronic haemodialysis patients (33 men/17 women, median age 57.5 years) were included.
  • Twenty-four-hour ABPM was performed during the short interdialytic period using the Spacelab monitor 90217.
  • Echocardiography was also conducted during the short interdialytic period.

Main Results:

  • Left ventricular mass index showed significant correlations with 24-hour systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP).
  • SBP, DBP, MAP, and pulse pressure (PP) provided significant information for predicting relative wall thickness.
  • No significant relationships were found between 24-hour blood pressure parameters and left ventricular ejection fraction, left ventricular end-diastolic diameter, or left atrial size.

Conclusions:

  • Twenty-four-hour blood pressure significantly influences left ventricular relative wall thickness and left ventricular mass index in chronic haemodialysis patients.
  • Left ventricular ejection fraction, left ventricular end-diastolic diameter, and left atrial size were not found to be related to 24-hour blood pressure.
  • The strongest association among diastolic parameters was observed between SBP across all three phases and the ratio of peak early to late diastolic filling velocity.
Abstract

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