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ABCD: Arquivos Brasileiros de Cirurgia Digestiva
Article . 2011 . Peer-reviewed
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Emagrecimento e desempenho cardíaco

Authors: Valezi, Antonio Carlos; Machado, Vitor Hugo Soares;

Emagrecimento e desempenho cardíaco

Abstract

RACIONAL: As doenças cardiovasculares representam as complicações mais frequentemente associadas à obesidade. O emagrecimento determina diminuição da pressão arterial e melhora nos parâmetros dos lipídeos e glicose séricos. A perda de peso e sua manutenção reduzem os fatores de risco para doenças cardiovasculares, tornando, reversíveis as alterações cardíacas decorrentes da obesidade. OBJETIVO: Avaliar o efeito da perda de peso sobre a capacidade física e as alterações estruturais e funcionais do coração de obesos submetidos à procedimento cirúrgico bariátrico. MÉTODOS: Quarenta e três pacientes submetidos à derivação gástrica em Y-de-Roux, foram analisados por eletrocardiograma, teste ergométrico e ecodopplercardiograma no pré-operatório e um ano após a derivação. Na análise estatística utilizaram-se os testes de Wilcoxon, t de Student, Shapiro-Wilk com nível de significância de 5%. RESULTADOS: O peso diminuiu de 116,5 kg ± 21,5 para 80 kg ± 15,9; o IMC de 41,8kg/m2 ± 4,4 para 28,4kg/m2 ± 3,8; a frequência cardíaca reduziu de 77,9 bpm ± 9,6 para 70,9bpm ± 7,8; a pressão sistólica de 130 mmHg ± 20 para 120mmHg ± 10; a diastólica de 80 mmHg ± 10 para 80 mmHg ± 0. O teste ergométrico mostrou aumentos na distância percorrida de 378,9m ± 126,5m para 595m ± 140,4; no coeficiente metabólico (MET) de 6,7 ± 2,4 ml de O2/kg/min para 8,3 ± 2,6ml de O2/kg/min; no consumo de oxigênio (VO2) de 23,1 ± 8,4 para 30 ± 10,3. O ecodopplercardiograma mostrou redução no septo interventricular de 12 mm ± 2 para 10 mm ± 1; parede posterior de 11 mm ± 2 para 10 mm ± 1; massa ventricular de 273 g ± 85 para 216g ± 60. Houve melhora na função diastólica com aumento na relação E'/A'e E/A e da fração de ejeção com elevação de 70,2% ± 7,2 para 72,9% ± 6,4. CONCLUSÃO: Obesos submetidos à cirurgia bariátrica apresentaram melhora na capacidade física e melhora estrutural e funcional do coração.

Keywords

Bariatric surgery, Ergometry, Obesidade, Echocardiography, Cirurgia bariátrica, Obesity, Ergometria, Ecocardiografia

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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gold