Angioplastia pulmonar con balón en la hipertensión pulmonar tromboembólica crónica no operable. Estudio observacional en una unidad de referencia / Balloon pulmonary angioplasty for inoperable patients with chronic thromboembolic pulmonary hypertension. Observational study in a referral unit

Introducción y objetivos: Se consolida la angioplastia con balón de arterias pulmonares (ABAP) en la hipertensión pulmonar tromboembólica crónica (HPTEC) no operable. El procedimiento se ha perfeccionado y han disminuido las complicaciones. Se analizan como objetivo primario los resultados y las complicaciones del primer programa nacional de ABAP. Métodos: Estudio prospectivo, unicéntrico y observacional que incluyó a todos los pacientes con HPTEC no quirúrgica tratados mediante ABAP desde mayo de 2013 hasta febrero de 2017. Se analizaron la mejoría clínica y hemodinámica, el edema de reperfusión y la mortalidad. Resultados: Se realizaron 156 sesiones de ABAP en 46 pacientes. Se redujeron las resistencias vasculares pulmonares un 44% (10,1 ± 4,9 frente a 5,6 ± 2,2 UW; p < 0,001) y la presión arterial pulmonar media un 23,6% (49,5 ± 12 frente a 37,8 ± 9 mmHg; p < 0,001); el índice cardiaco aumentó un 17,1% (2,3 frente a 2,7 l/min/m2; p = 0,002); las cifras de la fracción aminoterminal del propéptido natriurético cerebral se redujeron el 79,2% (1.233 ± 1.327 frente a 255,5 ± 318 pg/dl; p < 0,001), y la distancia recorrida en la prueba de 6 min de marcha aumentó 74 m (394 frente a 468 m; p = 0,001). Apareció edema de reperfusión en 9 procedimientos (5,8%), y falleció 1 paciente (mortalidad, 2,1%). Conclusiones: El perfeccionamiento actual de la ABAP en pacientes con HPTEC no operable la convierte en una técnica eficaz y segura que mejora el perfil hemodinámico, la clase funcional y los biomarcadores, con baja incidencia de complicaciones graves y mortalidad periprocedimento

Introduction and objectives: Balloon pulmonary angioplasty (BPA) for inoperable chronic thromboembolic pulmonary hypertension (CTEPH) is becoming widely accepted. Procedural refinement has reduced complications. Our primary objective was to analyze the results and complications of the first national BPA program. Methods: Observational, prospective series that included all consecutive BPA procedures in inoperable CTEPH patients between May 2013 and February 2017 performed at a single institution. We analyzed clinical and hemodynamic improvement, reperfusion pulmonary edema, and mortality. Results: We performed 156 BPA sessions in 46 patients. Pulmonary vascular resistance was reduced by 44% (10.1 ± 4.9 vs 5.6 ± 2.2 WU; P < .001) and mean pulmonary arterial pressure by 23.6% (49.5 ± 12 vs 37.8 ± 9 mmHg; P < .001); cardiac index rose by 17.1% (2.3 vs 2.7 L/min/m2; P = .002), N-terminal pro-B-type natriuretic peptide levels were reduced by 79.2% (1233 ± 1327 vs 255.5 ± 318 pg/dL; P < .001) and the 6-minute walk test distance improved by 74 meters (394 vs 468 m; P = .001). Reperfusion pulmonary edema developed after 9 interventions (5.8%) and 1 patient died (mortality 2.1%). Conclusions: Due to its current refinement, BPA has become a safe and effective treatment for inoperable CTEPH that improves hemodynamics, functional status, and biomarkers with a low rate of severe periprocedural complications and mortality

Balloon Pulmonary Angioplasty for Inoperable Patients With Chronic Thromboembolic Pulmonary Hypertension. Observational Study in a Referral Unit.

INTRODUCTION AND OBJECTIVES: Balloon pulmonary angioplasty (BPA) for inoperable chronic thromboembolic pulmonary hypertension (CTEPH) is becoming widely accepted. Procedural refinement has reduced complications. Our primary objective was to analyze the results and complications of the first national BPA program. METHODS: Observational, prospective series that included all consecutive BPA procedures in inoperable CTEPH patients between May 2013 and February 2017 performed at a single institution. We analyzed clinical and hemodynamic improvement, reperfusion pulmonary edema, and mortality. RESULTS: We performed 156 BPA sessions in 46 patients. Pulmonary vascular resistance was reduced by 44% (10.1 ± 4.9 vs 5.6 ± 2.2 WU; P < .001) and mean pulmonary arterial pressure by 23.6% (49.5 ± 12 vs 37.8 ± 9mmHg; P < .001); cardiac index rose by 17.1% (2.3 vs 2.7 L/min/m2; P = .002), N-terminal pro-B-type natriuretic peptide levels were reduced by 79.2% (1233 ± 1327 vs 255.5 ± 318 pg/dL; P < .001) and the 6-minute walk test distance improved by 74 meters (394 vs 468 m; P = .001). Reperfusion pulmonary edema developed after 9 interventions (5.8%) and 1 patient died (mortality 2.1%). CONCLUSIONS: Due to its current refinement, BPA has become a safe and effective treatment for inoperable CTEPH that improves hemodynamics, functional status, and biomarkers with a low rate of severe periprocedural complications and mortality.