PMID- 36718876 OWN - NLM STAT- MEDLINE DCOM- 20230208 LR - 20231004 IS - 2047-9980 (Electronic) IS - 2047-9980 (Linking) VI - 12 IP - 3 DP - 2023 Feb 7 TI - Predictors of Improvement in Exercise Tolerance After Balloon Pulmonary Angioplasty for Chronic Thromboembolic Pulmonary Hypertension. PG - e8137 LID - 10.1161/JAHA.122.027395 [doi] LID - e8137 AB - Background Balloon pulmonary angioplasty (BPA) improves exercise tolerance and hemodynamic parameters in patients with chronic thromboembolic pulmonary hypertension. However, it is still unclear which patient characteristics contribute to the improvement in exercise tolerance after BPA in chronic thromboembolic pulmonary hypertension. Methods and Results We retrospectively analyzed 126 patients with chronic thromboembolic pulmonary hypertension (aged 63+/-14 years; female, 65%) who underwent BPA without concomitant programmed exercise rehabilitation at Keio University between November 2012 and April 2018. Hemodynamic data and 6-minute walk distance (6MWD), as a measure of exercise tolerance, were evaluated before and 1 year after BPA. The clinical characteristics that contributed to improvement in exercise tolerance were elucidated. The 6MWD significantly increased from 372.0 m (256.5-431.3) to 462.0 m (378.8-537.0) 1 year after BPA (P<0.001). The improvement rate in the 6MWD after BPA exhibited a good correlation with age, height, mean pulmonary artery pressure, and 6MWD at baseline (Spearman rank correlation coefficients=-0.28, 0.24, -0.40, and 0.44, respectively). Additional multivariable linear regression analysis revealed that young age, tall height, high mean pulmonary artery pressure, short 6MWD at baseline, and high lung capacity at baseline were significant predictors of the improvement in 6MWD by BPA (standardized partial regression coefficient -0.39, 0.22, 0.19, -0.62, and 0.25, P<0.001, 0.007, 0.011, <0.001, and <0.001, respectively). Conclusions BPA without concomitant programmed exercise rehabilitation significantly improves exercise tolerance. This was particularly true in young patients with high stature, high mean pulmonary artery pressure, short 6MWD, and lung capacity at the time of diagnosis. FAU - Daigo, Kyohei AU - Daigo K AUID- ORCID: 0000-0003-2590-8966 AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. FAU - Katsumata, Yoshinori AU - Katsumata Y AUID- ORCID: 0000-0001-5576-5789 AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. FAU - Esaki, Kosho AU - Esaki K AUID- ORCID: 0000-0003-3830-8265 AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. FAU - Iwasawa, Yuji AU - Iwasawa Y AUID- ORCID: 0000-0002-5143-4648 AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. FAU - Ichihara, Genki AU - Ichihara G AUID- ORCID: 0000-0002-5580-989X AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. FAU - Miura, Kotaro AU - Miura K AUID- ORCID: 0000-0002-0351-6008 AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. FAU - Shirakawa, Kohsuke AU - Shirakawa K AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. FAU - Sato, Yasunori AU - Sato Y AD - Department of Preventive Medicine and Public Health Keio University School of Medicine Tokyo Japan. FAU - Sato, Kazuki AU - Sato K AUID- ORCID: 0000-0002-0586-1868 AD - Institute for Integrated Sports Medicine, Keio University School of Medicine Tokyo Japan. FAU - Fukuda, Keiichi AU - Fukuda K AUID- ORCID: 0000-0003-1413-0482 AD - Department of Cardiology Keio University School of Medicine Tokyo Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230131 PL - England TA - J Am Heart Assoc JT - Journal of the American Heart Association JID - 101580524 SB - IM MH - Humans MH - Female MH - *Hypertension, Pulmonary/diagnosis/therapy MH - Pulmonary Artery MH - *Pulmonary Embolism/diagnosis/therapy/complications MH - Exercise Tolerance MH - Retrospective Studies MH - Treatment Outcome MH - *Angioplasty, Balloon/adverse effects/methods MH - Chronic Disease PMC - PMC9973625 OTO - NOTNLM OT - balloon pulmonary angioplasty OT - chronic thromboembolic pulmonary hypertension OT - exercise tolerance EDAT- 2023/02/01 06:00 MHDA- 2023/02/09 06:00 PMCR- 2023/02/07 CRDT- 2023/01/31 06:13 PHST- 2023/02/01 06:00 [pubmed] PHST- 2023/02/09 06:00 [medline] PHST- 2023/01/31 06:13 [entrez] PHST- 2023/02/07 00:00 [pmc-release] AID - JAH38137 [pii] AID - 10.1161/JAHA.122.027395 [doi] PST - ppublish SO - J Am Heart Assoc. 2023 Feb 7;12(3):e8137. doi: 10.1161/JAHA.122.027395. Epub 2023 Jan 31.