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Peritonitis as a risk factor for long-term cardiovascular mortality in peritoneal dialysis patients: The case of a

Roberto Pecoits-Filho1, Franciele M Yabumoto1, Ludimila G Campos1

  • 1Pontifical Catholic University of Parana, Curitiba, Brazil.

Nephrology (Carlton, Vic.)
|December 24, 2016
PubMed

Insights

Peritonitis episodes significantly increase long-term cardiovascular mortality risk in peritoneal dialysis patients. Each additional infection episode further elevates this risk, highlighting a critical link between inflammation and heart health.

Area of Science:

  • Nephrology
  • Cardiology
  • Epidemiology

Background:

  • Peritonitis is a common complication in peritoneal dialysis (PD).
  • Long-term non-infectious mortality impact of peritonitis remains understudied.
  • Cardiovascular (CV) mortality is a major concern for PD patients.

Purpose of the Study:

  • To investigate the impact of peritonitis on long-term CV mortality in a large PD cohort.
  • To determine if peritonitis is an independent predictor of CV death in PD patients.

Main Methods:

  • Analysis of the BRAZPD II national prospective cohort study (2004-2011).
  • Inclusion of incident adult PD patients with ≥90 days on treatment.
  • Primary endpoint: Cardiovascular death occurring >30 days after peritonitis episode.
  • Cox regression analysis for time-dependent variables.

Main Results:

  • 2405 peritonitis episodes in 5707 PD patients.
  • One peritonitis episode increased late CV mortality hazard by 22% (HR 1.22).
  • Multiple episodes showed a stepwise increase in CV mortality risk: two (HR 1.78), three (HR 2.81), and four (HR 3.84).

Conclusions:

  • Peritonitis is an independent predictor of CV mortality in PD patients.
  • Increased frequency of peritonitis strongly correlates with higher CV mortality risk.
  • This study establishes a link between acute inflammation from peritonitis and adverse cardiovascular outcomes in PD.
Abstract

Keywords:
cardiovascular mortalityinflammationperitoneal dialysisperitonitisrisk factor

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