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Title: Pulmonary endarterectomy for chronic thromboembolic pulmonary hypertension: preliminary exploration in China. Author: Gu S, Liu Y, Su PX, Zhai ZG, Yang YH, Wang C. Journal: Chin Med J (Engl); 2010 Apr 20; 123(8):979-83. PubMed ID: 20497700. Abstract: BACKGROUND: Pulmonary endarterectomy is safe and effective surgical treatment for chronic thromboembolic pulmonary hypertension. This study aimed to evaluate the efficacy of pulmonary endarterectomy in treatment of thromboembolic pulmonary hypertension. METHODS: A retrospective study of 15 patients who underwent pulmonary endarterectomy in Beijing Chaoyang Hospital was performed. Obvious pulmonary hypertension and hypoxemia were observed in all patients. Bilateral pulmonary endarterectomy was performed under cardiopulmonary bypass with profound hypothermic circulatory arrest. RESULTS: Two patients (2/15) died of residual postoperative pulmonary hypertension and bleeding complication. The other 13 cases had significant decrease in systolic pulmonary artery pressure ((92.8 +/- 27.4) mmHg vs. (49.3 +/- 18.6) mmHg) and pulmonary vascular resistance ((938.7 +/- 464.1) dynesxsxcm(-5) vs. (316.8 +/- 153.3) dynesxsxcm(-5)), great improvement in cardiac index ((2.31 +/- 0.69) Lxmin(-1)xm(-2) vs. (3.85 +/- 1.21) Lxmin(-1)xm(-2)), arterial oxygen saturation (0.67 +/- 0.11 vs. 0.96 +/- 0.22) and mixed venous O(2) saturation (0.52 +/- 0.12 vs. 0.74 +/- 0.16) postoperatively compared to preoperative data. Mid-term follow-up showed that the cardiac function of all cases returned to NYHA class I or II, with great improvement in 6-minute walking distance ((138 +/- 36) m) and quality of life. CONCLUSIONS: Bilateral pulmonary endarterectomy using cardiopulmonary bypass with the aid of deep hypothermia and circulatory arrest can effectively reduce pulmonary hypertension and provide good mid-term hemodynamic and symptomatic results with low surgical mortality rate and few complications.[Abstract] [Full Text] [Related] [New Search]