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Balloon pulmonary angioplasty vs riociguat in patients with inoperable chronic thromboembolic pulmonary hypertension: A systematic review and meta-analysis.

ABSTRACT: BACKGROUNDS:No previous meta-analyses have compared the efficacy and safety of BPA with riociguat therapy in inoperable CTEPH patients. METHODS:Relevant published studies were searched in the PubMed, Embase and ClinicalTrial.gov databases. RESULTS:Twenty-three clinical trials including 1454 patients (631 underwent BPA; 823 underwent riociguat therapy) were analyzed. BPA was associated with a greater improvement in RAP (mean difference (MD) = -3.53?mmHg, 95% CI: [-4.85, -2.21] vs MD = -1.05?mmHg, 95% CI: [-1.82, -0.29]); mPAP (MD = -15.02?mmHg, 95% CI: [-17.32, -12.71] vs MD = -4.19?mmHg, 95% CI: [-5.58, -2.80]); PVR (standard MD = -1.32 woods, 95% CI: [-1.57, -1.08] vs standard MD = -0.65 woods, 95% CI: [-0.79, -0.50]); NYHA functional class (RR = 6.78, 95% CI: [3.14, 14.64] vs RR = 1.49, 95% CI: [1.07, 2.07]); and 6MWD (MD = 71.66?m, 95% CI: [58.34, 84.99] vs MD = 45.25?m, 95% CI: [36.51, 53.99]) than riociguat treatment. However, the increase in CO was greater with riociguat (MD = 0.78?L/min, 95% CI: [0.61, 0.96]) than with BPA (MD = 0.33?L/min, 95% CI: [0.06, 0.59]). No significant difference in cardiac index (CI) was found between BPA (MD = 0.40?L/min/m2 , 95% CI: [0.21, 0.58]) and riociguat (MD = 0.40?L/min/m2 , 95% CI: [0.26, 0.54]). The most common complications of BPA were pulmonary injury (0.3%-5.6%) and pulmonary edema (0.8%-28.6%). The most common adverse events of riociguat were headache, dizziness, hypotension and nasopharyngitis. CONCLUSIONS:Our meta-analysis indicates that BPA might be associated with greater improvements in exercise tolerance and pulmonary hemodynamics except for cardiac output and cardiac index than riociguat therapy. However, both of them were well tolerated.

SUBMITTER: Wang W

PROVIDER: S-EPMC6671827 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Balloon pulmonary angioplasty vs riociguat in patients with inoperable chronic thromboembolic pulmonary hypertension: A systematic review and meta-analysis.

Wang Wuwan W Wen Li L Song Zhengdong Z Shi Wenhai W Wang Ke K Huang Wei W

Clinical cardiology 20190612 8

<h4>Backgrounds</h4>No previous meta-analyses have compared the efficacy and safety of BPA with riociguat therapy in inoperable CTEPH patients.<h4>Methods</h4>Relevant published studies were searched in the PubMed, Embase and ClinicalTrial.gov databases.<h4>Results</h4>Twenty-three clinical trials including 1454 patients (631 underwent BPA; 823 underwent riociguat therapy) were analyzed. BPA was associated with a greater improvement in RAP (mean difference (MD) = -3.53 mmHg, 95% CI: [-4.85, -2.2 ...[more]

PMID: 31188483

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Project description:Objective:Inoperable chronic thromboembolic pulmonary hypertension (CTEPH) managed medically has a poor prognosis. Balloon pulmonary angioplasty (BPA) offers a new treatment for inoperable patients. The national BPA service for the UK opened in October 2015 and we now describe the treatment of our initial patient cohort. Methods:Thirty consecutive, inoperable, anatomically suitable, symptomatic patients on stable medical therapy for CTEPH were identified and offered BPA. They initially underwent baseline investigations including Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR) quality of life (QoL) questionnaire, cardiopulmonary exercise test, 6 min walk distance (6MWD), transthoracic echocardiography, N-terminal probrain natriuretic peptide (NT pro-BNP) and right heart catheterisation. Serial BPA sessions were then performed and after completion, the treatment effect was gauged by comparing the same investigations at 3 months follow-up. Results:A median of 3 (IQR 1-6) BPA sessions per patient resulted in a significant improvement in functional status (WHO functional class ≥3: 24 vs 4, p<0.0001) and QoL (CAMPHOR symptom score: 8.7±5.4 vs 5.6±6.1, p=0.0005) with reductions in pulmonary pressures (mean pulmonary artery pressure: 44.7±11.0 vs 34.4±8.3 mm Hg, p<0.0001) and resistance (pulmonary vascular resistance: 663±281 vs 436±196 dyn.s.cm-5, p<0.0001). Exercise capacity improved (minute ventilation/carbon dioxide production: 55.3±12.2 vs 45.0±7.8, p=0.03 and 6MWD: 366±107 vs 440±94 m, p<0.0001) and there was reduction in right ventricular (RV) stretch (NT pro-BNP: 442 (IQR 168-1607) vs 202 (IQR 105-447) pg/mL, p<0.0001) and dimensions (mid RV diameter: 4.4±1.0 vs 3.8±0.7 cm, p=0.002). There were no deaths or life-threatening complications and the mild-moderate per-procedure complication rate was 10.5%. Conclusions:BPA is safe and improves the functional status, QoL, pulmonary haemodynamics and RV dimensions of patients with inoperable CTEPH.

Project description:BACKGROUND:Balloon pulmonary angioplasty (BPA) has been demonstrated to improve cardiac function and exercise capacity in patients with inoperable chronic thromboembolic pulmonary hypertension (CTEPH), but its instant impact on cardiopulmonary function has seldom been evaluated. This study aims to determine the safety and efficacy of BPA and its immediate and lasting effects on cardiopulmonary function among CTEPH patients. METHODS:From May 2018 to January 2019, patients with inoperable CTEPH who underwent BPA sessions were consecutively enrolled. Hemodynamics were measured by right heart catheterization, selective pulmonary angiography and BPA were successively conducted. Hemodynamic variables, WHO functional class (WHO-FC), 6-min walk distance (6MWD) and serum NT-proBNP were evaluated before and after BPA sessions during hospitalization. Pulmonary function testing (PFT) and cardiopulmonary exercise testing (CPET) were performed within 1-3?days pre and post BPA to evaluate the effect of BPA on cardiopulmonary function. RESULTS:Twenty-five patients with inoperable CTEPH who underwent a total of forty BPA sessions were consecutively enrolled. A total of 183 segmental or subsegmental vessels (4.6?±?1.9 vessels per session) in 137 segments (3.4?±?1.6 segments per session) were dilated. No procedure-related complications occurred. Instant hemodynamics, WHO-FC, 6MWD and NT-proBNP were all significantly improved after a single BPA session. Significant improvement in cardiopulmonary function was also evident as assessed by PFT indexes (forced vital capacity, forced expiratory volume in the first second, maximal voluntary ventilation) and CPET parameters (peak work rate, peak VO2, oxygen uptake efficiency slope). Further analysis among ten CTEPH patients receiving multiple BPA sessions (2-4 sessions) indicated BPA resulted in lasting improvements in hemodynamics and cardiopulmonary function. CONCLUSIONS:BPA, a safe and effective approach, can bring instant improvements after a single session and lasting benefits after multiple sessions to hemodynamics and cardiopulmonary function for patients with inoperable CTEPH.

Dataset Information

Balloon pulmonary angioplasty vs riociguat in patients with inoperable chronic thromboembolic pulmonary hypertension: A systematic review and meta-analysis.

Publications

Balloon pulmonary angioplasty vs riociguat in patients with inoperable chronic thromboembolic pulmonary hypertension: A systematic review and meta-analysis.

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