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Lung Function Abnormalities in Smokers with Ischemic Heart Disease.

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Airflow limitation affects nearly one-third of patients with ischemic heart disease, impacting their quality of life and increasing healthcare use. This condition is often undiagnosed, highlighting a significant gap in patient care.

Keywords:
airflow limitationchronic obstructive pulmonary diseaseischemic heart diseaseprevalencesmoking

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Area of Science:

  • Cardiology and Respiratory Medicine
  • Public Health

Background:

  • Ischemic heart disease (IHD) patients often present with undiagnosed airflow limitation (AFL).
  • The ALICE study investigated AFL prevalence and its impact in IHD patients across Europe.

Purpose of the Study:

  • To determine the prevalence of airflow limitation in patients with ischemic heart disease.
  • To assess the effects of airflow limitation on quality of life, healthcare utilization, and future health risks.

Main Methods:

  • A multicenter, cross-sectional study involving 2,730 outpatients (aged ≥40) with documented IHD.
  • Airflow limitation defined as post-bronchodilator FEV1/FVC < 0.70.

Main Results:

  • 30.5% of IHD patients exhibited airflow limitation, with varying severity.
  • Most patients with AFL (70.6%) had no prior spirometry or diagnosed pulmonary disease.
  • AFL was linked to increased respiratory symptoms, poorer health status, and higher emergency room visits (P<0.05).

Conclusions:

  • Airflow limitation, consistent with COPD, is prevalent in nearly one-third of IHD patients.
  • Despite associated morbidity and societal costs, AFL remains largely undiagnosed and untreated in this population.
  • This underscores the need for systematic screening and management of AFL in IHD patients.