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Diagnostic Usefulness of B-Type Natriuretic Peptide and Functional Consequences of Muscle Alterations in COPD and Chronic Heart Failure*

Sanja Jelic, MD; Thierry H. Le Jemtel, MD
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*From the Division of Pulmonary, Allergy, and Critical Care Medicine (Dr. Jelic), Columbia University College of Physicians and Surgeons, New York, NY; and Division of Cardiology (Dr. Le Jemtel), Tulane University, New Orleans, LA.

Correspondence to: Sanjo Jelic, MD, Columbia University College of Physicians and Surgeons, PH 8, Room 840, 630 West 168th St, New York, NY 10032; e-mail: sj366@columbia.edu



Chest. 2006;130(4):1220-1230. doi:10.1378/chest.130.4.1220
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COPD affects up to one third of patients with chronic heart failure. The coexistence of COPD and chronic heart failure presents clinicians with diagnostic and therapeutic challenges. Measurement of B-type natriuretic peptide plasma levels facilitates the diagnosis of acute dyspnea in patients known to have both COPD and chronic heart failure. Patients with COPD or chronic heart failure have skeletal muscle abnormalities that limit functional capacity independently from primary organ failure. Exercise training reverses skeletal muscle abnormalities in patients with COPD or chronic heart failure and may be particularly indicated in patients with coexistent COPD and chronic heart failure.

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