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[Cardiac and renal arteriolar pathological changes in the autopsied elderly hypertensive patients with left

Fang Pei1, Xiao-Ying Li, Ying Fang

  • 1Department of Geriatric Cardiovascular Disease, Chinese PLA General Hospital, Beijing 100853, China; 8750 Troops Hospital of Chinese People's Armed Police Forces, Mengzi 661100, China.

Zhonghua Xin Xue Guan Bing Za Zhi
|December 24, 2008
PubMed

Insights

Elderly hypertensive patients with left ventricular hypertrophy show significant arteriolar changes in the heart and kidneys. Renal arterioles exhibit more severe pathological alterations than cardiac arterioles.

Area of Science:

  • Cardiovascular Pathology
  • Nephrology
  • Hypertension Research

Background:

  • Essential hypertension (EH) is a major risk factor for cardiovascular disease.
  • Left ventricular hypertrophy (LVH) is a common complication of chronic hypertension.
  • Arteriolar structural changes contribute to end-organ damage in hypertension.

Purpose of the Study:

  • To investigate the pathological changes in cardiac and renal arterioles.
  • To correlate these changes with the degree of left ventricular hypertrophy (LVH) in elderly hypertensive patients.
  • To compare the severity of arteriolar damage between cardiac and renal tissues.

Main Methods:

  • Autopsy samples from 25 elderly hypertensive patients with LVH and 8 age-matched controls were analyzed.
  • Quantitative morphometric analysis of cardiac and renal arterioles was performed using light microscopy and computer imaging.
  • Semi-quantitative evaluation of arteriolar lesion index and plasma albumin infiltration was conducted.

Main Results:

  • Hypertensive patients showed decreased arteriolar inner diameter and luminal area, with increased wall thickness and remodeling indices, proportional to LVH degree.
  • Renal arterioles exhibited more severe pathological changes than cardiac arterioles under similar conditions.
  • Elevated arteriolar lesion index and plasma albumin infiltration were observed in both organs, with greater severity in the kidneys.

Conclusions:

  • Concentric remodeling of cardiac and renal arterioles occurs in elderly hypertensive patients with LVH.
  • The severity of arteriolar damage progresses with increasing LVH.
  • Renal arterioles are significantly more affected than cardiac arterioles in this patient cohort.
Abstract

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