Pulmonary Artery Denervation to Treat Pulmonary Arterial Hypertension The Single-Center, Prospective, First-in-Man PADN-1 Study (First-in-Man Pulmonary Artery Denervation for Treatment of Pulmonary Artery Hypertension)

被引:165
作者
Chen, Shao-Liang [1 ,2 ]
Zhang, Feng-Fu [1 ]
Xu, Jing [1 ]
Xie, Du-Jiang [1 ]
Zhou, Ling [1 ]
Thach Nguyen [3 ]
Stone, Gregg W. [4 ]
机构
[1] Nanjing Med Univ, Nanjing Hosp 1, Dept Cardiol, Nanjing 21006, Jiangsu, Peoples R China
[2] Nanjing Heart Ctr, Dept Cardiol, Nanjing, Jiangsu, Peoples R China
[3] St Mary Hosp, Hobart, IN USA
[4] Cardiovasc Res Fdn, New York, NY USA
关键词
6-min walk test; denervation; pulmonary artery hypertension; pulmonary artery pressure; BRAIN NATRIURETIC PEPTIDE; DIAGNOSIS; GUIDELINES; PRESSURE; ECHOCARDIOGRAPHY; CATHETERIZATION; BARORECEPTORS; MANAGEMENT;
D O I
10.1016/j.jacc.2013.05.075
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objectives This study was designed to test the safety and efficacy of pulmonary artery (PA) denervation (PADN) for patients with idiopathic PA hypertension (IPAH) not responding optimally to medical therapy. Background Baroreceptors and sympathetic nerve fibers are localized in or near the bifurcation area of the main PA. We previously demonstrated that PADN completely abolished the experimentally elevated PA pressure responses to occlusion of the left interlobar PA. Methods Of a total of 21 patients with IPAH, 13 patients received the PADN procedure, and the other 8 patients who refused the PADN procedure were assigned to the control group. PADN was performed at the bifurcation of the main PA, and at the ostial right and left PA. Serial echocardiography, right heart catheterization, and a 6-min walk test (6MWT) were performed. The primary endpoints were the change of PA pressure (PAP), tricuspid excursion (Tei) index, and 6MWT at 3 months follow-up. Results Compared with the control group, at 3 months follow-up, the patients who underwent the PADN procedure showed significant reduction of mean PAP (from 55 +/- 5 mm Hg to 36 +/- 5 mm Hg, p < 0.01), and significant improvement of the 6MWT (from 324 +/- 21 m to 491 +/- 38 m, p < 0.006) and of the Tei index (from 0.7 +/- 0.04 to 0.50 +/- 0.04, p < 0.001). Conclusions We report for the first time the effect of PADN on functional capacity and hemodynamics in patients with IPAH not responding optimally to medical therapy. Further randomized study is required to confirm the efficacy of PADN. (First-in-Man Pulmonary Artery Denervation for Treatment of Pulmonary Artery Hypertension [PADN-1] study; chiCTR-ONC-12002085) (C) 2013 by the American College of Cardiology Foundation
引用
收藏
页码:1092 / 1100
页数:9
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