PMID- 17768581 OWN - NLM STAT- MEDLINE DCOM- 20080319 LR - 20190606 IS - 1678-4170 (Electronic) IS - 0066-782X (Linking) VI - 89 IP - 1 DP - 2007 Jul TI - Evaluation of respiratory muscle strength and pulmonary function in heart failure patients. PG - 36-41 AB - BACKGROUND: Heart failure (HF) is the inability of the heart to pump enough blood to supply the necessities of the body. Pulmonary function and respiratory muscles can be affected and typical symptoms presented by the patients include discomfort at a minimal exertion. OBJECTIVE: To verify pulmonary function and respiratory muscle strength in patients with class II and III HF as defined by the New York Heart Association (NYHA). METHODS: The study was descriptive and observational, and comprised 12 class II and III HF patients in follow-up at the out-patient. Pulmonary function assessments [Forced Expiratory Volume in the first second (FEV1) and Forced Vital Capacity (FVC)] were performed using microspirometry and respiratory muscle strength [Maximal Expiratory Pressure (MEPmax) and Maximal Inspiratory Pressure (MIPmax)] were evaluated using a pressure transducer (Globalmed). RESULTS: Differences were found between the functional classes II and III in relation to pulmonary function: FEV1 (II: 91.17 +/- 19.87; III: 68.17 +/- 21.78); FVC (II: 68.17 +/- 21.78; III: 73.67 +/- 22.94); and respiratory muscle strength: MIPmax (II: 71.67 +/- 40.70; III: 53.33 +/- 29.27) and MEPmax (II: 98.83 +/- 34.56; III: 58.33 +/- 15.06). The class II were higher for all study parameters, only MEPmax revealed a statistically significant difference. CONCLUSION: The pulmonary function and respiratory muscle strength are impaired in heart failure patients class III patients, particularly in relation to MEPmax. FAU - Forgiarini, Luiz Alberto Jr AU - Forgiarini LA Jr AD - Centro Universitario Metodista-IPA, Irmandade Santa Casa de Misecordia de Porto Alegre, Fundacao Faculdade Federal de Ciencias Medicas de Porto Alegre, Porto Alegre, RS, Brasil. FAU - Rubleski, Angelica AU - Rubleski A FAU - Douglas, Garcia AU - Douglas G FAU - Tieppo, Juliana AU - Tieppo J FAU - Vercelino, Rafael AU - Vercelino R FAU - Dal Bosco, Adriane AU - Dal Bosco A FAU - Monteiro, Mariane Borba AU - Monteiro MB FAU - Dias, Alexandre Simoes AU - Dias AS LA - eng LA - por PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Brazil TA - Arq Bras Cardiol JT - Arquivos brasileiros de cardiologia JID - 0421031 SB - IM MH - Aged MH - Female MH - Forced Expiratory Volume/physiology MH - Heart Failure/*physiopathology MH - Humans MH - Inspiratory Capacity/physiology MH - Linear Models MH - Lung/*physiopathology MH - Male MH - Maximal Expiratory Flow Rate/physiology MH - Middle Aged MH - Muscle Strength/*physiology MH - Respiratory Muscles/*physiopathology MH - *Severity of Illness Index MH - Vital Capacity/physiology EDAT- 2007/09/05 09:00 MHDA- 2008/03/20 09:00 CRDT- 2007/09/05 09:00 PHST- 2006/03/31 00:00 [received] PHST- 2007/02/26 00:00 [accepted] PHST- 2007/09/05 09:00 [pubmed] PHST- 2008/03/20 09:00 [medline] PHST- 2007/09/05 09:00 [entrez] AID - S0066-782X2007001300007 [pii] AID - 10.1590/s0066-782x2007001300007 [doi] PST - ppublish SO - Arq Bras Cardiol. 2007 Jul;89(1):36-41. doi: 10.1590/s0066-782x2007001300007.