Abstract
Balloon pulmonary angioplasty (BPA) represents a therapeutic option for the treatment of chronic thromboembolic pulmonary hypertension (CTEPH) in patients who are not eligible for surgical pulmonary endarterectomy (PEA) or with persistent/recurrent symptomatic pulmonary arterial hypertension after PEA. This study evaluated the safety of BPA during 5 years of experience of the only Italian center systematically performing this procedure. The BPA program was activated at the S. Orsola Polyclinic in Bologna in June 2015. Life-threatening periprocedural complications were defined as: death <30 days, need for cardiopulmonary support, hemoptysis with the need for endotracheal intubation. Serious complications were vascular complications requiring surgical or percutaneous intervention. Other endpoints of interest were: hemoptysis, pulmonary vascular damage with or without hemoptysis, and pulmonary reperfusion injury with high-resolution computed tomography lung scan at 24 h. From June 2015 to September 2020, 50 patients (45% male, median age 68 years), 42 inoperable and 8 with persistent/recurrent pulmonary hypertension after PEA, underwent 156 BPA procedures at our institution. There was one life-threatening complication (2% of patients, 0.06% of the procedures), i.e. severe hemoptysis requiring endotracheal intubation, and four serious complications (8% of the patients, 2.6% of the procedures), i.e. one pulmonary artery perforation requiring percutaneous treatment and three access-site vascular complications requiring surgery. There were no deaths <30 days. Pulmonary reperfusion injury occurred in 37 patients (74%) for a total of 96 sessions (62%). However, reperfusion injury was limited and with subclinical course in most cases. This study confirmed the relative safety of BPA in patients with CTEPH who are not candidates for heart surgery or with persistent pulmonary hypertension after PEA in the first large Italian experience.
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