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Hypertension and liver disease.

Jens H Henriksen1, Søren Møller

  • 1Department of Clinical Physiology, 239, Hvidovre University Hospital, DK-2650 Hvidovre, Denmark. jens.h.henriksen@hh.hosp.dk

Current Hypertension Reports
|November 6, 2004
PubMed
Summary

Arterial hypertension is less common in cirrhosis patients due to vasodilatation and counterregulatory systems. This review explores hemodynamic changes in cirrhosis, impacting blood pressure regulation.

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Area of Science:

  • Cardiovascular Medicine
  • Hepatology
  • Nephrology

Background:

  • Arterial hypertension affects 10-15% of individuals aged 40-60.
  • Prevalence of hypertension is notably lower in patients with chronic liver disease (cirrhosis).

Purpose of the Study:

  • To review systemic hemodynamic alterations in cirrhosis.
  • To understand the mechanisms behind reduced hypertension prevalence in cirrhotic patients.

Main Methods:

  • Review of existing literature on cirrhotic hemodynamics and arterial hypertension.
  • Analysis of systemic vascular resistance, cardiac output, arterial compliance, and hormonal systems.

Main Results:

  • Cirrhosis is characterized by vasodilation, low systemic vascular resistance, increased cardiac output, and high arterial compliance.
  • Counterregulatory systems (sympathetic nervous system, renin-angiotensin-aldosterone system, vasopressin) are activated.
  • Vasodilation, mediated by nitric oxide and other agents, is most pronounced in the splanchnic area, counterbalancing blood pressure.
  • Hypertension can resolve or be masked in cirrhosis, even with renovascular disease.

Conclusions:

  • Hemodynamic changes in cirrhosis, particularly vasodilation, contribute to the low prevalence of arterial hypertension.
  • The interplay between cirrhosis and hypertension presents complex homeostatic regulation challenges.
  • Further research is needed to clarify homeostatic regulation in cirrhotic patients with manifest arterial hypertension.

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