Taek Kyu Park1, Jeong Hoon Yang2, Kyeongman Jeon3, Seung-Hyuk Choi1, Jin-Ho Choi1, Hyeon-Cheol Gwon1, Chi Ryang Chung3, Chi Min Park3, Yang Hyun Cho4, Kiick Sung4, Gee Young Suh3. 1. Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. 2. Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea jhysmc@gmail.com. 3. Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. 4. Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Abstract
OBJECTIVES: The role of extracorporeal membrane oxygenation (ECMO) remains controversial in adult patients with refractory septic shock. We sought to describe the clinical outcomes of adult patients supported by ECMO during septic shock refractory to conventional treatment. METHODS: We analysed consecutive adult patients with refractory septic shock, assisted by an ECMO system between January 2005 and December 2013 in a single-centre registry. The primary outcome was survival to hospital discharge. RESULTS: A total of 32 patients (21 males) received ECMO support for refractory septic shock. Of these, 14 patients (43.8%) had undergone cardiopulmonary resuscitation (CPR) and 7 patients (21.9%) did not achieve the return of spontaneous circulation until initiation of ECMO flow. ECMO was weaned off successfully in 13 patients (40.6%) and 7 patients (21.9%) survived to hospital discharge. The survivors had lower peak lactate (4.5 vs 15.1 mmol/l, P = 0.03), lower Sepsis-related Organ Failure Assessment day 3 score (15 vs 18, P = 0.01) and higher peak troponin I (32.8 vs 3.7 ng/ml, P = 0.02) than the non-survivors. None of the patients (31.3%) in whom ECMO was initiated more than 30.5 h after onset of septic shock, survived. In multivariable-adjusted models, CPR [adjusted hazard ratio (HR), 4.61; 95% confidence interval (CI), 1.55-13.69; P = 0.006] was an independent predictor of in-hospital mortality after ECMO in patients with refractory septic shock. Higher peak troponin I > 15 ng/ml (adjusted HR, 0.34; 95% CI, 0.12-0.97; P = 0.04) was associated with a lower risk of in-hospital mortality. CONCLUSIONS: Survival to hospital discharge remained low in adult patients with refractory septic shock despite ECMO support. Our findings suggest that implantation of ECMO during refractory septic shock could be considered in patients with severe myocardial injury but should be avoided in patients who have received CPR.
OBJECTIVES: The role of extracorporeal membrane oxygenation (ECMO) remains controversial in adult patients with refractory septic shock. We sought to describe the clinical outcomes of adult patients supported by ECMO during septic shock refractory to conventional treatment. METHODS: We analysed consecutive adult patients with refractory septic shock, assisted by an ECMO system between January 2005 and December 2013 in a single-centre registry. The primary outcome was survival to hospital discharge. RESULTS: A total of 32 patients (21 males) received ECMO support for refractory septic shock. Of these, 14 patients (43.8%) had undergone cardiopulmonary resuscitation (CPR) and 7 patients (21.9%) did not achieve the return of spontaneous circulation until initiation of ECMO flow. ECMO was weaned off successfully in 13 patients (40.6%) and 7 patients (21.9%) survived to hospital discharge. The survivors had lower peak lactate (4.5 vs 15.1 mmol/l, P = 0.03), lower Sepsis-related Organ Failure Assessment day 3 score (15 vs 18, P = 0.01) and higher peak troponin I (32.8 vs 3.7 ng/ml, P = 0.02) than the non-survivors. None of the patients (31.3%) in whom ECMO was initiated more than 30.5 h after onset of septic shock, survived. In multivariable-adjusted models, CPR [adjusted hazard ratio (HR), 4.61; 95% confidence interval (CI), 1.55-13.69; P = 0.006] was an independent predictor of in-hospital mortality after ECMO in patients with refractory septic shock. Higher peak troponin I > 15 ng/ml (adjusted HR, 0.34; 95% CI, 0.12-0.97; P = 0.04) was associated with a lower risk of in-hospital mortality. CONCLUSIONS: Survival to hospital discharge remained low in adult patients with refractory septic shock despite ECMO support. Our findings suggest that implantation of ECMO during refractory septic shock could be considered in patients with severe myocardial injury but should be avoided in patients who have received CPR.
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