Liaoning University of Traditional Chinese Medicine, Shenyang, China.
Liaoning University of Traditional Chinese Medicine Affiliated Hospital, Shenyang, China.
Clinics (Sao Paulo). 2021 Apr 16;76:e2420. doi: 10.6061/clinics/2021/e2420. eCollection 2021.
The risk factors of bronchiectasis in patients with chronic obstructive pulmonary disease have not yet been established. This systematic review and meta-analysis aimed to investigate and identify potential risk factors for patients with chronic obstructive pulmonary disease accompanied by bronchiectasis. We reviewed eight electronic journal databases from their inception to November 2019 for observational studies with no language restrictions. The Newcastle-Ottawa Scale was applied to evaluate the quality of the literature. Binary variables were pooled using odds ratios and continuous variables using the standardized mean difference with 95% confidence intervals. The confidence of evidence was assessed according to the grading of the recommendations assessment, development, and evaluation method. Eight case-control studies met the inclusion criteria. Tuberculosis history, smoking history, hospitalization stays, admissions in the past year, and duration of symptoms were considered risk factors. In addition, the ratio between the forced expiratory volume in 1s and forced vital capacity, the percentage of forced expiratory volume in 1s, the forced expiratory volume in 1s as a percentage of the predicted value, purulent sputum, purulent mucus sputum, positive sputum culture, Pseudomonas aeruginosa infection, arterial oxygen pressure, daily dyspnea, C-reactive protein, leukocytes, and the percentage of neutrophils were found to be closely related to bronchiectasis. However, these were not considered risk factors. The evidence of all outcomes was judged as "low" or "very low." Additional prospective studies are required to elucidate the underlying risk factors and identify effective preventive interventions.
慢性阻塞性肺疾病患者支气管扩张的危险因素尚未确定。本系统评价和荟萃分析旨在调查和确定伴有支气管扩张的慢性阻塞性肺疾病患者的潜在危险因素。我们回顾了从建立到 2019 年 11 月的 8 个电子期刊数据库,对无语言限制的观察性研究进行了回顾。应用纽卡斯尔-渥太华量表评估文献质量。二分类变量采用比值比合并,连续变量采用标准化均数差合并,置信区间为 95%。根据推荐评估、制定和评估方法的分级标准评估证据的可信度。8 项病例对照研究符合纳入标准。结核病史、吸烟史、住院时间、过去 1 年的住院次数和症状持续时间被认为是危险因素。此外,1 秒用力呼气量与用力肺活量之比、1 秒用力呼气量占预计值的百分比、脓性痰、脓性黏液痰、痰培养阳性、铜绿假单胞菌感染、动脉血氧分压、日常呼吸困难、C 反应蛋白、白细胞和中性粒细胞百分比与支气管扩张密切相关。然而,这些并不被认为是危险因素。所有结局的证据均被判定为“低”或“极低”。需要进一步的前瞻性研究来阐明潜在的危险因素,并确定有效的预防干预措施。