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Thoracic Bleeding Complications in Patients With Venovenous Extracorporeal Membrane Oxygenation.
Annals of Thoracic Surgery 2018 December
BACKGROUND: Patients with respiratory failure are treated more frequently with venovenous extracorporeal membrane oxygenation (vv-ECMO). These patients are at risk for bleeding due to complex multifactorial coagulation disorders resulting from the extracorporeal circulation.
METHODS: A retrospective analysis was conducted of prospectively collected data on all patients requiring vv-ECMO between December 2010 and December 2016. End points were the incidence, consequence, and in-hospital mortality of patients with thoracic bleeding complications.
RESULTS: The study included 418 patients (aged 50 ± 16.5 years) requiring vv-ECMO. In 23.2% (n = 97) of patients, relevant hemorrhage was documented. Thoracic bleeding developed in 40 patients (41.2%), followed by diffuse (21.6%), cerebral (14.4%), gastrointestinal (6.2%), cannulation site (6.2%), and other bleeding locations. Thoracic bleeding complications occurred spontaneously (40%), postoperatively (37.5%), after interventions (20%), and after trauma (2.5%). A thoracic operation was performed in 60% (n = 24) of these patients, and a repeated operation due to bleeding was necessary in 45.8%. Mean ECMO duration (18.6 ± 16.8 days; p = 0.035) and hospital length of stay (58 ± 50 days; p = 0.002) were significantly longer than that in patients without bleeding. In-hospital mortality was significantly higher in patients with thoracic bleeding complications (52.5%) than in patients without bleeding complications (32.7%; p = 0.013).
CONCLUSIONS: Thoracic bleeding complications were observed in 9.6% of patients and represented the most frequent bleeding complication during vv-ECMO treatment. Almost 60% of patients required surgical revision, and nearly half of these patients underwent a repeated operation. Because mortality is high in these patients, vv-ECMO should be performed in only centers experienced with thoracic surgery.
METHODS: A retrospective analysis was conducted of prospectively collected data on all patients requiring vv-ECMO between December 2010 and December 2016. End points were the incidence, consequence, and in-hospital mortality of patients with thoracic bleeding complications.
RESULTS: The study included 418 patients (aged 50 ± 16.5 years) requiring vv-ECMO. In 23.2% (n = 97) of patients, relevant hemorrhage was documented. Thoracic bleeding developed in 40 patients (41.2%), followed by diffuse (21.6%), cerebral (14.4%), gastrointestinal (6.2%), cannulation site (6.2%), and other bleeding locations. Thoracic bleeding complications occurred spontaneously (40%), postoperatively (37.5%), after interventions (20%), and after trauma (2.5%). A thoracic operation was performed in 60% (n = 24) of these patients, and a repeated operation due to bleeding was necessary in 45.8%. Mean ECMO duration (18.6 ± 16.8 days; p = 0.035) and hospital length of stay (58 ± 50 days; p = 0.002) were significantly longer than that in patients without bleeding. In-hospital mortality was significantly higher in patients with thoracic bleeding complications (52.5%) than in patients without bleeding complications (32.7%; p = 0.013).
CONCLUSIONS: Thoracic bleeding complications were observed in 9.6% of patients and represented the most frequent bleeding complication during vv-ECMO treatment. Almost 60% of patients required surgical revision, and nearly half of these patients underwent a repeated operation. Because mortality is high in these patients, vv-ECMO should be performed in only centers experienced with thoracic surgery.
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