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A insuficiencia cardiaca (IC) e uma sindrome clinica sistemica complexa em que a disfuncao cardiaca ocasiona suprimento sanguineo inadequado para atender as necessidades metabolicas dos tecidos. Objetivou-se analisar as caracteristicas funcionais pulmonares e suas repercussoes em pacientes com insuficiencia cardiaca de um Hospital Universitario da cidade de Fortaleza/CE. Pesquisa de campo, seccional, realizada no periodo de agosto de 2012 a novembro de 2013. A amostra foi composta por 20 pacientes portadores de IC (Classes II e III). Foram excluidos os pacientes que apresentaram alteracoes osteomioarticulares, e os que participaram de programas de reabilitacao. As avaliacoes consistiram em analisar as pressoes inspiratorias e expiratorias maximas, o pico de fluxo expiratorio e a espirometria. Na amostra pesquisada 60% (n=12) eram do sexo masculino, com media de idade de 55,3 ± 2,77 anos, 80% (n=16) eram casados, 55% (n=11) tinham como causa da IC a miocardiopatia dilatada e 40% (n=8) apresentaram fracao de ejecao variando entre 36 ˫ 40%. Em relacao as comorbidades apenas 30% (n=6) apresentaram diabetes, 90% (n=18) hipertensao e 40% (n=8) dislipidemia. Em relacao a avaliacao da musculatura respiratoria, e da funcao pulmonar, observou-se que os valores medios foram menores significativamente quando comparados ao previsto, porem sem significância quando comparados entre as classes funcionais II e III. Houve maior prevalencia de IC entre pacientes do sexo masculino, casados, em decorrencia de miocardiopatia dilatada hipertensiva, com FEVE de 36 ˫ 40%. Estes pacientes tendem a reduzir a forca muscular respiratoria, o pico de fluxo e a funcao pulmonar. As classes funcionais II e III nao apresentaram diferencas significativas em relacao aos valores previstos em relacao as variaveis analisadas.    ANALYSIS OF FUNCTIONAL PULMONARY CHARACTERISTICS AND THEIR REPERCUSSIONS IN PATIENTS WITH HEART FAILURE  ABSTRACT  Heart failure (HF) is a complex systemic clinical syndrome in which cardiac dysfunction causes inadequate blood supply to meet the tissues' metabolic needs. The aim of this study was to analyze the pulmonary functional characteristics and their repercussions in patients with heart failure at a University Hospital in the city of Fortaleza / CE. Field research, sectional, performed from August 2012 to November 2013. The sample consisted of 20 patients with HF (Classes II and III). Patients who presented osteomioarticular alterations and those who participated in rehabilitation programs were excluded. The evaluations consisted of analyzing maximal inspiratory and expiratory pressures, peak expiratory flow, and spirometry. In the studied sample, 60% (n = 12) were males, with a mean age of 55.3 ± 2.77 years, 80% (n = 16) were married, 55% (n = 11) had as causes to CI the dilated cardiomyopathy and 40% (n = 8) had an ejection fraction ranging from 36 to 40%. Regarding comorbidities, only 30% (n = 6) presented diabetes, 90% (n = 18) hypertension and 40% (n = 8) dyslipidemia. Regarding respiratory muscle evaluation and pulmonary function, it was observed that mean values were significantly lower when compared to predicted, but without significance when compared between functional classes II and III. There was a higher prevalence of HF among male patients, married, due to hypertensive dilated cardiomyopathy, with LVEF of 36 ˫ 40%. These patients tend to reduce respiratory muscle strength, peak flow, and lung function. Functional classes II and III did not present significant differences in relation to predicted values and variables analyzed.

ANÁLISE DAS CARACTERÍSTICAS FUNCIONAIS PULMONARES E SUAS REPERCUSSÕES EM PACIENTES COM INSUFICIÊNCIA CARDÍACA