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Related Concept Videos

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

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Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

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Chronic Obstructive Pulmonary Disease01:24

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COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
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Chronic Obstructive Pulmonary Disease, or COPD, is a long-term condition marked by persistent and only partially reversible airflow limitation. It involves two overlapping conditions—chronic bronchitis and emphysema—which often co-appear but differ in dominant symptoms and underlying mechanisms.Chronic Bronchitis FeaturesChronic bronchitis presents with a persistent productive cough and thick, sometimes purulent mucus due to airway inflammation, enlarged mucus glands, and goblet...
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Chronic Obstructive Pulmonary Disease II: Emphysema01:23

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Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
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Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
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Body composition alterations in chronic obstructive pulmonary disease.

M Roca1, F Mitu2, Iulia-Cristina Roca3

  • 1Faculty of Medicine, University of Medicine and Pharmacy Grigore T. Popa, Iaşi.

Revista Medico-Chirurgicala a Societatii De Medici Si Naturalisti Din Iasi
|February 11, 2014
PubMed
Summary
This summary is machine-generated.

Chronic obstructive pulmonary disease (COPD) patients exhibit significantly lower lean body mass, dry lean mass, and total body water compared to healthy individuals. These body composition changes correlate with disease severity and patient age.

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Area of Science:

  • Pulmonary Medicine
  • Metabolic Disorders
  • Body Composition Analysis

Background:

  • Metabolic disorders contribute to comorbidities like atherosclerosis and cardiovascular disease in COPD patients.
  • These metabolic disturbances may be linked to alterations in body composition.

Purpose of the Study:

  • To investigate specific body composition characteristics in COPD patients.
  • To examine the relationship between body composition, respiratory function, and clinical status in COPD.

Main Methods:

  • Prospective case-control study with 31 COPD patients and 29 healthy controls.
  • Bioelectrical impedance analysis used to measure body composition (fat, lean mass, water) and basal metabolic rate.
  • Assessments included spirometry, 6-minute walk test, dyspnea scale, and St George's Respiratory Questionnaire (SGRQ).

Main Results:

  • COPD patients showed significantly lower lean body mass, dry lean mass, total body water, and basal metabolic rate compared to controls (p < 0.001 for all).
  • No significant differences in body fat mass were observed between groups.
  • These alterations correlated significantly with age, dyspnea, airway obstruction severity, and exercise capacity.

Conclusions:

  • Lean body mass, dry lean mass, and total body water are significantly altered in COPD patients.
  • These body composition changes are associated with the clinical and functional severity of COPD, as well as patient age.