Avaliação morfofuncional do coração de obesos, antes e após a cirurgia bariátrica

AUTOR(ES)
DATA DE PUBLICAÇÃO

2010

RESUMO

Objective: This study evaluated the physical abilities and structural and functional alterations in the hearts of obese patients submitted to bariatric surgery with resulting significant reduction of weight. Method: 43 adult obese patients were submitted to electrocardiogram, ergometric test and ecodopplercardiogram; of the subjects, 31 were females ( 72,1% ) and 12 were males (27,9%), all presenting obesity, at pre-surgery evaluation, and one year after banded Roux-en-Y gastric bypass; the data base was processed on Excel and the analyses were conducted through the SAS program ( Statistical Analysis System ), version 9.1, with the utilization of the Wilcoxon tests, Student?s t test, and Shapiro-Wilk with 5% significance level. Results: Weight reduction from 116,5 kg ± 21,5 to 80kg ± 15,9; body mass index ( BMI) reduced from 41,8kg/m2 ± 4,4 to 28,4kg/m2 ± 3,8; excess weight reduced by 64,7%. Cardiac frequency reduced from 77,9 bpm ± 9,6 to 70,9 bpm ± 7,8, systolic pressure reduced from 130 mmHg ± 20 to 120 ± 10; diastolic from 80 mmHg ± 10 to 80 mmHg ± 0. The following increases were revealed by ergometric tests: distance covered from 378,9m ± 126,5 to 595m ± 140,4; metabolic coefficient ( MET ) from 6,7 ± 2,4 ml of O2/kg/min. to 8,3 ± 2,6 ml of O2/kg/min and VO2 of 23,1 MET ± 8,4ml/kg/min. to 30 MET ± 10,3. According to the ecodopplercardiogram results, the following reductions were observed: Interventricular sept from 12 mm ± 2 to 10mm ± 1; posterior wall from 11mm ± 2 to 10mm ± 1; ventricular mass from 273 g ± 85 to 216g ± 60. There was improvement in the diastolic function with increase in the E?/A?and E/A relationship and the ejection fraction with an increase from 70,2% ± 7,2 to 72,9% ± 6,4. Conclusion: The reduction of body weight with the bariatric surgery produced improvement in the physical abilities and beneficial hearts structural and functional of these patients.

ASSUNTO(S)

cirurgia bariátrica obesidade - cirurgia obesos - testes funcionais do coração ecocardiografia teste de esforço bariatric surgery obesity surgery over weight persons cardiac function tests

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