Risk factors of complicating pulmonary hypertension in patients with chronic obstructive pulmonary disease:a meta-analysis
Objective To systematically evaluate the risk factors for complicating pulmonary hyperten-sion (PH) in the patients with chronic obstructive pulmonary disease (COPD).Methods The databases of PubMed,Embase,Cochrane Library,VIP,CNKI,China Biomedical Literature Service System and Wanfang Database were retrieved by computer.The retrieval time limitation was from the establishment of the database to September 2023.The literatures on the risk factors for complicating PH in the patients with COPD was col-lected and the meta analysis was conducted by using the RevMan 5.3 software.Results A total of 18 articles were included,including 8 prospective studies and 10 retrospective studies,with a total of 4361 COPD pa-tients,including 8 risk factors.The meta analysis results showed that the risk factors with statistical signifi-cance included C-reactive protein (CRP)[OR(95%CI)=2.17 (1.49-3.14)],interleukin-6 (IL-6)[OR(95%CI)=2.07 (1.59-2.70)],tumor necrosis factor-α (TNF-α)[OR(95%CI)=1.69 (1.28-2.22)],brain na-triuretic peptide (BNP)[OR(95%CI)=1.58 (1.35-1.85)],D-dimer (D-D)[OR(95%CI)=2.58 (1.99-3.35)],forced expiratory volume in one second (FEV1)[OR(95%CI)=2.49 (1.93-3.20)]and mean plate-let volume (MPV)[OR(95%CI)=1.69 (1.19-2.39)].Conclusion CRP,IL-6,TNF-α,BNP,D-D,FEV1 and MPV are the risk factors for complicating PH in COPD patients.