CBS 2019
CBSMD教育中心
中 文

科学研究

Abstract

Recommended Article

A VOYAGER Meta-Analysis of the Impact of Statin Therapy on Low-Density Lipoprotein Cholesterol and Triglyceride Levels in Patients With Hypertriglyceridemia Effects of Aspirin for Primary Prevention in Persons with Diabetes Mellitus Randomized Comparison Between Radial and Femoral Large-Bore Access for Complex Percutaneous Coronary Intervention Predicting Major Adverse Events in Patients With Acute Myocardial Infarction Association Between Haptoglobin Phenotype and Microvascular Obstruction in Patients With STEMI: A Cardiac Magnetic Resonance Study The Prognostic Value of Exercise Echocardiography After Percutaneous Coronary Intervention Dynamic atrioventricular delay programming improves ventricular electrical synchronization as evaluated by 3D vectorcardiography Management of Percutaneous Coronary Intervention Complications: Algorithms From the 2018 and 2019 Seattle Percutaneous Coronary Intervention Complications Conference

Clinical Trial2019 Feb 11;12(3):274-284.

JOURNAL:JACC Cardiovasc Interv. Article Link

Pulmonary Artery Denervation Significantly Increases 6-minute Walk Distance for Patients with Combined Pre- and Post-capillary Pulmonary Hypertension Associated with the Left Heart Failure: PADN-5 Study

H Zhang, YL Han and SL Chen et al. Keywords: pulmonary hypertension; pulmonary artery denervation; 6-minute walk distance; heart failure

ABSTRACT



BACKGROUND - Pulmonary artery denervation (PADN) has been shown to improve hemodynamics of pulmonary arterial hypertension (PAH) in a series of patients. Additionally, benefits of targeted medical therapy for patients with combined pre- and post-capillary pulmonary hypertension (CpcPH) secondary to left sided heart failure are unknown.


OBJECTIVES - We sought to assess the benefits of PADN among CpcPH patients in a prospective, randomized sham-controlled trial.


METHODS - Ninety-eight CpcPH patients, defined as mean pulmonary arterial pressure ≥25 mmHg, pulmonary capillary wedge pressure >15 mmHg, and pulmonary vascular resistance (PVR] > 3.0 Woods Units, were randomly assigned to PADN or sildenafil plus sham PADN. Standard medical therapy for heart failure was administered to all patients in both groups. The primary endpoint was the increase in the 6-minute walk distance (6MWD) at the 6-month follow-up. The secondary endpoint was change in PVR. Clinical worsening was assessed in a post-hoc analysis. The main safety endpoint was occurrence of pulmonary embolism.


RESULTS - At 6-months, the mean increases in the 6MWD were 83 m in the PADN group and 15 m in the sildenafil group (least square mean difference 66 m, 95% confidence interval 38.2 to 98.8; p < 0.001). PADN treatment was associated with a significantly lower PVR than in the sildenafil group (4.2 ± 1.5 vs. 6.1 ± 2.9 Wood Units, p = 0.001). Clinical worsening was less frequent in the PADN group compared to the sildenafil group (16.7% vs. 40%, p = 0.014). At the end of the study, there were 7 all-cause deaths and 2 cases of pulmonary embolism.


CONCLUSIONS - PADN is associated with significant improvements in hemodynamic and clinical outcomes in patients with CpcPH. Further studies are warranted to define its precise role in the treatment of this patient population.