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Brazilian Journal of Cardiovascular Surgery

Print version ISSN 0102-7638

Abstract

GELAPE, Cláudio Léo et al. Pulmonary pressure by echocardiophy in chagasic patients on heart transplant waiting list. Rev Bras Cir Cardiovasc [online]. 2011, vol.26, n.1, pp.54-60. ISSN 0102-7638.  http://dx.doi.org/10.1590/S0102-76382011000100012.

INTRODUCTION: The patients suffering heart failure develop an increase in pulmonary pressure because of a retrograde mechanism. The pulmonary hypertension is a prognostic marker. OBJECTIVE: The aim of this study is to correlate pulmonary hypertension measured by echocardiogram versus catheterization in pre-heart transplant patients on waiting list. METHODS: Data from 90 patients of the Clinical Hospital UFMG were collected between 2004 and 2009. All the patients took an echo and catheterization as an integral part of pre-heart transplant. Mean age was 45.5 years old, 68 (75.6%) male. Fourty-two (46.7%) were Chagas' disease patients, 32 (35.6%) presented idiopathic dilated cardiomyopathy, 10 (11.1%) had ischemic cardyomiopathy. RESULTS: The mean eco-PASP was 45 ± 12mmHg). The mean cat-PASP was 47 ±14mmHg. The eco-PASP-Chagas was 41.7 ±12,5 mmHg and non-Chagas 47.6 ±12.8 mmHg P=0.04. The cat-PASP-Chagas was 46 ±12.1 mmHg and non-Chagas 48.7 ±12.8 mmHg P=0.43. Eight patients had cat-PASP>60. The correlation between eco-PASP and cat-PASP in Chagas' patients was r=0.45; P=0.008 and in the non-Chagas was r=0.66; P<0.001. The eco-PASP-Chagas>32,5mmHg has a sensitivity of 79% and specificity of 75% to diagnose PH, with an area under the curve of 0.819. The eco-PASP-non-Chagas>35.5 mmHg has a sensitivity of 82% and a specificity of 70% to diagnose PH, with an area under the curve of 0.776. CONCLUSIONS: There is a good correlation between eco-PASP and cat-PASP (r=0.54) in pre-heart transplant patients. The eco-PASP was lower in the Chagas' group. The echocardiogram is an important method to diagnosis and control pulmonary pressure in pre-heart transplant, specifically in Chagas' patients. The catheterization is still important to evaluate pulmonary reactivity during vasodilation test.

Keywords : Pulmonary artery, pathology; Heart transplantation; Catheterization.

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