Background: Analog chest drainage systems (ACS) are generally used to monitor postoperative alveolar air leakage (PAL) after lung resection. An electronic digital chest drainage system (DCS) has recently been developed that reportedly has several advantages over the traditional ACS. Here, we report a single institution’s experience of PAL management with the DCS. We also sought to establish whether DCS had superior clinical benefits and outcomes compared with ACS.Methods: We enrolled 112 consecutive patients who underwent lung resection and were subsequently managed with DCS. We compared PAL rate, duration of chest drainage, and the incidence of complications with a group of 121 consecutive patients previously managed with ACS after lung resection, using propensity score matching.Results: Mean maximum and minimum PAL rates during DCS chest drainage were 48.9 ml/min (range: 2.0–868.6 ml/min) and 0.1 ml/min (0.0–1.2 ml/min), respectively. Mean PAL rate at DCS removal was 1.3 ml/min (0.0–10.0 ml/min). After propensity score matching, mean duration of chest drainage was significantly shorter with DCS than ACS (2.7 days, range: 1–9 days, compared with 3.7 days, range: 1–21 days, respectively; P = 0.031).Conclusions: Managing PAL with DCS after pulmonary resection appears to reduce the duration of chest drainage.
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机译：背景：模拟胸腔引流系统（ACS）通常用于监测肺切除术后的肺泡漏气（PAL）。最近开发了一种电子数字胸腔引流系统（DCS），据报道它比传统ACS具有多个优势。在这里，我们报告单个机构在DCS上进行PAL管理的经验。我们还试图确定DCS是否比ACS具有更好的临床益处和结果。方法：我们招募了112例连续接受肺切除并随后接受DCS治疗的患者。我们使用倾向评分匹配法比较了121例先前在肺切除术后接受ACS治疗的连续患者的PAL率，胸腔引流持续时间和并发症发生率。结果：DCS胸腔引流期间平均最大和最小PAL率为48.9 ml / min（范围：2.0–868.6 ml / min）和0.1 ml / min（0.0–1.2 ml / min）。去除DCS时的平均PAL速率为1.3毫升/分钟（0.0-10.0毫升/分钟）。倾向评分匹配后，DCS的平均胸腔引流时间比ACS短（2.7天，范围：1–9天，而3.7天，范围：1-21天； P = 0.031）。 PAL与DCS肺切除后似乎可以减少胸腔引流的时间。
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