The Association Between Pleural Empyema and Peripheral Arterial Disease in Younger Patients: A Retrospective National

Tzu-Yuan Wang1,2, Hsin-Hung Chen3,4,5, Chun-Hung Su6,7

  • 1Department of Internal Medicine, College of Medicine, China Medical University, Taichung, Taiwan.

Frontiers in Medicine
|April 19, 2021
PubMed

Insights

Patients with pleural empyema (PE) face a higher risk of developing peripheral arterial disease (PAD). This risk is particularly elevated in younger individuals (under 49) and within two years of their PE diagnosis.

Area of Science:

  • Cardiovascular Medicine
  • Pulmonology
  • Epidemiology

Background:

  • Pleural empyema (PE) is a serious thoracic infection.
  • Peripheral arterial disease (PAD) is a significant vascular condition.
  • The association between PE and PAD risk requires further investigation.

Purpose of the Study:

  • To examine the relationship between pleural empyema and the subsequent risk of developing peripheral arterial disease.
  • To identify specific patient subgroups with a heightened risk of PAD following PE.

Main Methods:

  • Retrospective cohort study utilizing the National Health Institute Research Database.
  • Analysis of univariable and multivariable Cox's proportional hazard regressions.
  • Kaplan-Meier method and log-rank tests for survival analysis.

Main Results:

  • The incidence of PAD was higher in the PE cohort (2.76 per 1,000 person-years) versus the non-PE cohort (1.72 per 1,000 person-years).
  • Patients with PE showed an increased risk of PAD (adjusted HR = 1.18).
  • Significantly higher PAD risk was observed in PE patients aged ≤ 49 years (aHR = 5.34) and within 2 years post-PE diagnosis (aHR = 1.35).

Conclusions:

  • Pleural empyema is associated with an elevated risk of peripheral arterial disease.
  • Younger patients (≤ 49 years) with PE face a substantially higher risk of PAD.
  • The risk of PAD is notably increased within the first two years following a PE diagnosis.

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