scholarly journals Evaluating cut‐off levels for progesterone, β human chorionic gonadotropin and β human chorionic gonadotropin ratio to exclude pregnancy viability in women with a pregnancy of unknown location: A prospective multicenter cohort study

2021 ◽  
Author(s):  
Shabnam Bobdiwala ◽  
Christopher Kyriacou ◽  
Evangelia Christodoulou ◽  
Jessica Farren ◽  
Nicola Mitchell‐Jones ◽  
...  
Keyword(s):  
Cohort Study ◽  
Chorionic Gonadotropin ◽  
Human Chorionic Gonadotropin ◽  
Multicenter Cohort Study ◽  
Multicenter Cohort ◽  
Pregnancy Of Unknown Location

Early Discern COVID-19 from the Suspected Patients via Fever Clinics: A Multicenter Cohort Study from Shanghai

2020 ◽  
Author(s):  
Bei Mao ◽  
Yang Liu ◽  
Yan-hua Chai ◽  
Xiao-yan Jin ◽  
Hai Wen Luo ◽  
...  
Keyword(s):  
Cohort Study ◽  
Multicenter Cohort Study ◽  
Multicenter Cohort

Evaluation of the effectiveness of antenatal corticoid in preterm twin and single pregnancies: a multicenter cohort study

2021 ◽  
pp. 1-7
Author(s):  
Walusa Assad Gonçalves-Ferri ◽  
Francisco Eulógio Martinez ◽  
Fábia Pereira Martins-Celini ◽  
João Henrique Carvalho Leme de Almeida ◽  
Renato Procianoy ◽  
...  
Keyword(s):  
Cohort Study ◽  
Multicenter Cohort Study ◽  
Multicenter Cohort

scholarly journals Anti-Xa activity and hemorrhagic events under extracorporeal membrane oxygenation (ECMO): a multicenter cohort study

Critical Care ◽  
2021 ◽  
Vol 25 (1) ◽  
Author(s):  
Richard Descamps ◽  
Mouhamed D. Moussa ◽  
Emmanuel Besnier ◽  
Marc-Olivier Fischer ◽  
Sébastien Preau ◽  
...  
Keyword(s):  
Cohort Study ◽  
Extracorporeal Membrane Oxygenation ◽  
Univariate Analysis ◽  
Hemorrhagic Complication ◽  
Multicenter Cohort Study ◽  
Membrane Oxygenation ◽  
Multicenter Cohort ◽  
Hemorrhagic Event ◽  
Hemorrhagic Events ◽  
Va Ecmo

Abstract Background Hemorrhagic events remain a major concern in patients under extracorporeal membrane oxygenation (ECMO) support. We tested the association between anticoagulation levels and hemorrhagic events under ECMO using anti-Xa activity monitoring. Methods We performed a retrospective multicenter cohort study in three ECMO centers. All adult patients treated with veno-venous (VV)- or veno-arterial (VA)-ECMO in 6 intensive care units between September 2017 and August 2019 were included. Anti-Xa activities were collected until a hemorrhagic event in the bleeding group and for the duration of ECMO in the non-bleeding group. All dosages were averaged to obtain means of anti-Xa activity for each patient, and patients were compared according to the occurrence or not of bleeding. Results Among 367 patients assessed for eligibility, 121 were included. Thirty-five (29%) presented a hemorrhagic complication. In univariate analysis, anti-Xa activities were significantly higher in the bleeding group than in the non-bleeding group, both for the mean anti-Xa activity (0.38 [0.29–0.67] vs 0.33 [0.22–0.42] IU/mL; p = 0.01) and the maximal anti-Xa activity (0.83 [0.47–1.46] vs 0.66 [0.36–0.91] IU/mL; p = 0.05). In the Cox proportional hazard model, mean anti-Xa activity was associated with bleeding (p = 0.0001). By Kaplan–Meier analysis with the cutoff value at 0.46 IU/mL obtained by ROC curve analysis, the probability of survival under ECMO without bleeding was significantly lower when mean anti-Xa was > 0.46 IU/mL (p = 0.0006). Conclusion In critically ill patients under ECMO, mean anti-Xa activity was an independent risk factor for hemorrhagic complications. Anticoagulation targets could be revised downward in both VV- and VA-ECMO.

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