Department of Laboratory Medicine, Konkuk University School of Medicine, Seoul, Korea.
Sphingotec GmbH, Hennigsdorf, Germany.
Ann Lab Med. 2019 Sep;39(5):454-463. doi: 10.3343/alm.2019.39.5.454.
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection. Biologically active adrenomedullin (bio-ADM) is an emerging biomarker for sepsis. We explored whether bio-ADM concentration could predict severity, organ failure, and 30-day mortality in septic patients.
In 215 septic patients (109 patients with sepsis; 106 patients with septic shock), bio-ADM concentration was measured at diagnosis of sepsis, using sphingotest bio-ADM (Sphingotec GmbH, Hennigsdorf, Germany) and analyzed in terms of sepsis severity, vasopressor use, and 30-day mortality. The number of organ failures, sequential (sepsis-related) organ failure assessment (SOFA) score, and 30-day mortality were compared according to bio-ADM quartiles.
Bio-ADM concentration was significantly higher in patients with septic shock, vasopressor use, and non-survivors than in patients with solitary sepsis, no vasopressor use, and survivors, respectively (all <0.0001). Bio-ADM quartiles were associated with the number of organ failures (<0.0001), as well as SOFA cardiovascular, renal, coagulation, and liver subscores (all <0.05). The 30-day mortality rate showed a stepwise increase in each bio-ADM quartile (all <0.0001). Bio-ADM concentration and SOFA score equally predicted the 30-day mortality (area under the curve: 0.827 vs 0.830).
Bio-ADM could serve as a useful and objective biomarker to predict severity, organ failure, and 30-day mortality in septic patients.
败血症是一种危及生命的器官功能障碍,由宿主对感染的失调反应引起。生物活性肾上腺髓质素(bio-ADM)是败血症的一个新兴生物标志物。我们探讨了 bio-ADM 浓度是否可以预测败血症患者的严重程度、器官衰竭和 30 天死亡率。
在 215 例败血症患者(109 例败血症患者;106 例败血症性休克患者)中,使用 Sphingotest bio-ADM(Sphingotec GmbH,德国亨尼希多夫)在败血症诊断时测量 bio-ADM 浓度,并根据败血症严重程度、血管加压素使用情况和 30 天死亡率进行分析。根据 bio-ADM 四分位数比较器官衰竭数量、序贯(与败血症相关的)器官衰竭评估(SOFA)评分和 30 天死亡率。
败血症性休克、血管加压素使用和非幸存者的 bio-ADM 浓度明显高于单独败血症、无血管加压素使用和幸存者(均<0.0001)。bio-ADM 四分位数与器官衰竭数量相关(<0.0001),以及 SOFA 心血管、肾脏、凝血和肝脏亚评分(均<0.05)。30 天死亡率在每个 bio-ADM 四分位数中呈阶梯式增加(均<0.0001)。bio-ADM 浓度和 SOFA 评分同样可以预测 30 天死亡率(曲线下面积:0.827 对 0.830)。
bio-ADM 可以作为一种有用和客观的生物标志物,预测败血症患者的严重程度、器官衰竭和 30 天死亡率。