Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Department of Cardiology, Akershus University Hospital, Lørenskog, Norway.
Int J Chron Obstruct Pulmon Dis. 2023 Apr 25;18:693-703. doi: 10.2147/COPD.S396855. eCollection 2023.
Heart failure (HF) often coexists with chronic obstructive pulmonary disease (COPD) and is associated with worse outcomes. We aimed to assess the feasibility of detecting vertical artifacts (B-lines) on lung ultrasound (LUS) to identify concurrent HF in patients hospitalized with acute exacerbation of COPD (AECOPD). Second, we wanted to assess the association between B-lines and the risk of rehospitalization for AECOPD or death.
In a prospective cohort study, 123 patients with AECOPD underwent 8-zone bedside LUS within 24h after admission. A positive LUS was defined by ≥3 B-lines in ≥2 zones bilaterally. The ability to detect concurrent HF (adjudicated by a cardiologist committee) and association with events were evaluated by logistic- and Cox regression models.
Forty-eight of 123 patients with AECOPD (age 75±9 years, 57[46%] men) had concurrent HF. Sixteen (13%) patients had positive LUS, and the prevalence of positive LUS was similar between patients with and without concurrent HF (8[17%] vs 8[11%], respectively, p=0.34). The number of B-lines was higher in concurrent HF: median 10(IQR 6-16) vs 7(IQR 5-12), p=0.03. The sensitivity and specificity for a positive LUS to detect concurrent HF were 17% and 89%, respectively. Positive LUS was not associated with rehospitalization and mortality: Adjusted HR: 0.93(0.49-1.75), p=0.81.
LUS did not detect concurrent HF or predict risk in patients with AECOPD.
心力衰竭(HF)常与慢性阻塞性肺疾病(COPD)共存,并与更差的结局相关。我们旨在评估在因 COPD 急性加重(AECOPD)住院的患者中,通过检测肺部超声(LUS)中的垂直伪影(B 线)来识别同时存在 HF 的可行性。其次,我们希望评估 B 线与 AECOPD 再住院或死亡风险之间的关系。
在一项前瞻性队列研究中,123 例 AECOPD 患者在入院后 24 小时内接受了 8 区床边 LUS。双侧≥2 区出现≥3 条 B 线定义为阳性 LUS。通过逻辑回归和 Cox 回归模型评估检测同时存在 HF(由心脏病专家委员会裁决)的能力以及与事件的关联。
123 例 AECOPD 患者中有 48 例(年龄 75±9 岁,57[46%] 名男性)同时患有 HF。16 例(13%)患者的 LUS 阳性,同时患有 HF 和无 HF 的患者中 LUS 阳性的发生率相似(分别为 8[17%]和 8[11%],p=0.34)。同时存在 HF 的患者的 B 线数量较高:中位数 10(IQR 6-16)比 7(IQR 5-12),p=0.03。LUS 阳性检测同时存在 HF 的敏感性和特异性分别为 17%和 89%。LUS 阳性与再住院和死亡率无关:调整后的 HR:0.93(0.49-1.75),p=0.81。
LUS 不能检测 AECOPD 患者同时存在的 HF 或预测风险。