Balloon pulmonary angioplasty improves biventricular functions and pulmonary flow in chronic thromboembolic pulmonary hypertension

Haruka Sato, Hideki Ota, Koichiro Sugimura, Tatsuo Aoki, Shunsuke Tatebe, Masanobu Miura, Saori Yamamoto, Nobuhiro Yaoita, Hideaki Suzuki, Kimio Satoh, Kei Takase, Hiroaki Shimokawa

研究成果: Article査読

32 被引用数 (Scopus)

抄録

Background: It remains to be determined whether balloon pulmonary angioplasty (BPA) improves biventricular cardiac functions and pulmonary flow in patients with chronic thromboembolic pulmonary hypertension (CTEPH). Methods and Results: We enrolled 30 consecutive patients with inoperable CTEPH who underwent BPA, and carried out serial cardiac magnetic resonance imaging (CMR; M/F, 9/21; median age, 65.2 years). No patient died during the treatment or follow-up period. BPA significantly improved WHO functional class (III/IV, 83.0 to 4.0%), 6-min walking distance (330.2±168.7 to 467.3±114.4 m), mean pulmonary artery pressure (40.8±10.7 to 23.2±4.94 mmHg), pulmonary vascular resistance (9.26±4.19 to 3.35±1.40 WU) and cardiac index (2.19±0.64 to 2.50±0.57 L·min·m2; all P<0.01). CMR also showed improvement of right ventricular (RV) ejection fraction (EF; 41.3±12.4 to 50.7±8.64%), left ventricular (LV) end-diastolic volume index (72.1±14.0 to 81.6±18.6 ml/m2) and LV stroke volume index (41.0±9.25 to 47.8±12.3 ml/m2; all P<0.01). There was a significant correlation between change in RVEF and LVEF (Pearson’s r=0.45, P=0.01). Average velocity in the main pulmonary artery was also significantly improved (7.50±2.43 to 9.79±2.92 cm/s, P<0.01). Conclusions: BPA improves biventricular functions and pulmonary flow in patients with inoperable CTEPH.

本文言語English
ページ(範囲)1470-1477
ページ数8
ジャーナルCirculation Journal
80
6
DOI
出版ステータスPublished - 2016

ASJC Scopus subject areas

  • 循環器および心血管医学

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