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Measuring Diaphragm Thickness and Function Using Point-of-Care Ultrasound
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Published on: November 3, 2023

Diaphragmatic dysfunction and mortality in patients with COPD.

Wellington Pereira dos Santos Yamaguti1, Elaine Paulin, João Marcos Salge

  • 1Fisioterapeuta Supervisor de Aprimoramento. Hospital Sírio Libanês, São Paulo, Brasil. wellpsy@yahoo.com.br

Jornal Brasileiro De Pneumologia : Publicacao Oficial Da Sociedade Brasileira De Pneumologia E Tisilogia
|February 4, 2010
PubMed
Summary

Chronic obstructive pulmonary disease (COPD) patients with diaphragmatic dysfunction, indicated by low diaphragm mobility, face a significantly higher mortality risk. This dysfunction is a key indicator for adverse outcomes in COPD patients.

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Area of Science:

  • Pulmonology
  • Respiratory Medicine
  • Clinical Research

Background:

  • Diaphragmatic dysfunction is a recognized complication in Chronic Obstructive Pulmonary Disease (COPD).
  • The impact of diaphragmatic dysfunction on mortality risk in COPD patients requires further elucidation.

Purpose of the Study:

  • To investigate the association between diaphragmatic dysfunction, assessed by diaphragm mobility, and mortality risk in COPD patients.
  • To compare mortality rates in COPD patients with low diaphragm mobility versus those with high diaphragm mobility.

Main Methods:

  • Evaluated pulmonary function, diaphragm mobility, quality of life, and Body mass index, airway Obstruction, Dyspnea, and Exercise capacity (BODE) index in 42 COPD patients.
  • Patients were categorized into low mobility (LM) and high mobility (HM) groups based on diaphragm excursion.
  • Prospective follow-up for up to 48 months to record deaths from respiratory complications.

Main Results:

  • The low mobility (LM) group exhibited significantly higher BODE index values compared to the high mobility (HM) group (p = 0.01).
  • All four deaths during the 48-month follow-up occurred in the LM group (15.79%), indicating a statistically significant increased risk (p = 0.02).
  • No significant differences were observed in age, lung hyperinflation, or quality of life between the groups.

Conclusions:

  • COPD patients with diaphragmatic dysfunction, characterized by low diaphragm mobility, demonstrate a heightened risk of mortality.
  • Diaphragm mobility serves as a potential prognostic marker for survival in COPD patients.
  • Targeting diaphragmatic function may be crucial for improving outcomes in COPD management.