Comparability of Pathromtin SL, Dade Actin FS i STA Cephascreen reagens for activated partial thromboplastin time measurement

Đerek, Lovorka; Živković, Marcela; Hašperger, Dragica; Juriček, Jasna; Romić, Željko

doi:10.11613/bm.2008.009

Cited by 2 publications

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“…Both centres routinely used UFH-based anticoagulation, but with different intensity, thus enabling us to compare a low-dose heparinization strategy aiming for a PTT between 35 and 40 s (measured thrice per day using the actin FS assay by Siemens) with a high-dose heparinization strategy aiming for an ACT between 140 and 180 s (measured every 2 h). In the high-dose-group, PTT was measured once daily using the Pathrombin SL assay, with both tests showing excellent correlation [ 10 ]. ECMO systems used were Getinge/Maquet RotaFlow or CardioHelp with cannulation of the internal jugular and/or femoral veins via 19–25 French cannulas.…”

Section: Methodsmentioning

confidence: 99%

Comparison of anticoagulation strategies for veno-venous ECMO support in acute respiratory failure

et al. 2020

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Background Extracorporeal membrane oxygenation (ECMO) support in acute respiratory failure may be lifesaving, but bleeding and thromboembolic complications are common. The optimal anticoagulation strategy balancing these factors remains to be determined. This retrospective study compared two institutional anticoagulation management strategies focussing on oxygenator changes and both bleeding and thromboembolic events. Methods We conducted a retrospective observational cohort study between 04/2015 and 02/2020 in two ECMO referral centres in Germany in patients receiving veno-venous (VV)-ECMO support for acute respiratory failure for > 24 h. One centre routinely applied low-dose heparinization aiming for a partial thromboplastin time (PTT) of 35–40 s and the other routinely used a high-dose therapeutic heparinization strategy aiming for an activated clotting time (ACT) of 140–180 s. We assessed number of and time to ECMO oxygenator changes, 15-day freedom from oxygenator change, major bleeding events, thromboembolic events, 30-day ICU mortality, activated clotting time and partial thromboplastin time and administration of blood products. Primary outcome was the occurrence of oxygenator changes depending on heparinization strategy; main secondary outcomes were the occurrence of severe bleeding events and occurrence of thromboembolic events. The transfusion strategy was more liberal in the low-dose centre. Results Of 375 screened patients receiving VV-ECMO support, 218 were included in the analysis (117 high-dose group; 101 low-dose group). Disease severity measured by SAPS II score was 46 (IQR 36–57) versus 47 (IQR 37–55) and ECMO runtime was 8 (IQR 5–12) versus 11 (IQR 7–17) days (P = 0.003). There were 14 oxygenator changes in the high-dose group versus 48 in the low-dose group. Freedom from oxygenator change at 15 days was 73% versus 55% (adjusted HR 3.34 [95% confidence interval 1.2–9.4]; P = 0.023). Severe bleeding events occurred in 23 (19.7%) versus 14 (13.9%) patients (P = 0.256) and thromboembolic events occurred in 8 (6.8%) versus 19 (19%) patients (P = 0.007). Mortality at 30 days was 33.3% versus 30.7% (P = 0.11). Conclusions In this retrospective study, ECMO management with high-dose heparinization was associated with lower rates of oxygenator changes and thromboembolic events when compared to a low-dose heparinization strategy. Prospective, randomized trials are needed to determine the optimal anticoagulation strategy in patients receiving ECMO support.

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Section: Methodsmentioning

confidence: 99%

Comparison of anticoagulation strategies for veno-venous ECMO support in acute respiratory failure

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Both centres routinely used UFH-based anticoagulation, but with different intensity, thus enabling us to compare a low-dose heparinization strategy aiming for a PTT between 35 and 40 s (measured thrice per day using the actin FS assay by Siemens) with a high-dose heparinization strategy aiming for an ACT between 140 and 180 s (measured every 2 h). In the high-dose-group, PTT was measured once daily using the Pathrombin SL assay, with both tests showing excellent correlation [10]. ECMO systems used were Getinge/Maquet RotaFlow or Car-dioHelp with cannulation of the internal jugular and/or femoral veins via 19-25 French cannulas.…”

Section: Design Settings and Participantsmentioning

confidence: 99%

Comparison of anticoagulation strategies for veno-venous ECMO support in acute respiratory failure

Friedrich

Döbler

Stahl

et al. 2020

Acute Critical Care

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BACKGROUND Extracorporeal membrane oxygenation (ECMO) support in acute respiratory failure may be lifesaving, but bleeding and thromboembolic complications are common. The optimal anticoagulation strategy balancing these factors remains to be determined. This retrospective study compared two institutional anticoagulation management strategies focussing on oxygenator changes and both bleeding and thromboembolic events. METHODS We conducted a retrospective observational cohort study between 04/2015 and 02/2020 in two ECMO referral centres in Germany in patients receiving veno-venous (VV)-ECMO support for acute respiratory failure for > 24 h. One centre routinely applied low-dose heparinization aiming for a partial thromboplastin time (PTT) of 35-40 s and the other routinely used a high-dose therapeutic heparinization strategy aiming for an activated clotting time (ACT) of 140-180 s. We assessed number of and time to ECMO oxygenator changes, 15-day freedom from oxygenator change, major bleeding events, thromboembolic events, 30-day ICU mortality, activated clotting time and partial thromboplastin time and administration of blood products. Primary outcome was the occurrence of oxygenator changes depending on heparinization strategy; main secondary outcomes were the occurrence of severe bleeding events and occurrence of thromboembolic events. The transfusion strategy was more liberal in the low-dose centre. RESULTS Of 375 screened patients receiving VV-ECMO support, 218 were included in the analysis (117 high-dose group; 101 low-dose group). Disease severity measured by SAPS II score was 46 (IQR 36-57) versus 47 (IQR 37-55) and ECMO runtime was 8 (IQR 5-12) versus 11 (IQR 7-17) days (P = 0.003). There were 14 oxygenator changes in the high-dose group versus 48 in the low-dose group. Freedom from oxygenator change at 15 days was 73% versus 55% (adjusted HR 3.34 [95% confidence interval 1.2-9.4]; P = 0.023). Severe bleeding events occurred in 23 (19.7%) versus 14 (13.9%) patients (P = 0.256) and thromboembolic events occurred in 8 (6.8%) versus 19 (19%) patients (P = 0.007). Mortality at 30 days was 33.3% versus 30.7% (P = 0.11). CONCLUSIONS In this retrospective study, ECMO management with high-dose heparinization was associated with lower rates of oxygenator changes and thromboembolic events when compared to a low-dose heparinization strategy. Prospective, randomized trials are needed to determine the optimal anticoagulation strategy in patients receiving ECMO support.

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Comparability of Pathromtin SL, Dade Actin FS i STA Cephascreen reagens for activated partial thromboplastin time measurement

Abstract: Kli nič ki za vod za la bo ra to rij sku di jag nos ti ku, Kli nič ka bol ni ca Dub ra va, Zag reb Uni ver si ty De par tme nt of La bo ra to ry Diag no sis, Dub ra va Uni ver si ty Hos pi tal, Zag reb, Croa tia

Cited by 2 publications

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Comparison of anticoagulation strategies for veno-venous ECMO support in acute respiratory failure

Comparison of anticoagulation strategies for veno-venous ECMO support in acute respiratory failure

Comparison of anticoagulation strategies for veno-venous ECMO support in acute respiratory failure

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