Post traumatic cerebral sinovenous thrombosis in children: A retrospective and multicenter study.

Context: Cerebral sinovenous thrombosis (CSVT) is a rare but life-threatening condition in the pediatric population and there is no pediatric guidelines regarding anticoagulation for post traumatic CSVT.
Objective: This study aims to describe a cohort of children with post traumatic CSVT and the use of anticoagulant therapy in this population.
Methods: A multicenter retrospective study. Patients admitted with post traumatic CSVT in the six participating Pediatric Intensive Care Unit were included.
Results: Overall, 29 patients (median age 8.2 years [IQR 4.8-14.6], n = 22 (76%) males) were included in the study (Table 1). CSVT was observed within the first 24 h after admission for a half of the patients (n = 14, 50%). Anticoagulation was initiated in 18 patients (62%). No patient received thrombolytic therapy or endovascular treatment. The presence of epidural hematoma was associated with the absence of anticoagulation (n = 0 versus n = 10, p = 0.003). One patient (3%) died of extracranial injury (not related with adverse event of anticoagulation) and in survivors, median Pediatric Overall Performance Category Outcome (POPC) score at discharge from PICU was 2 [IQR 2-4] (i.e., mild disability). Regarding the outcomes of patients, we found no association according to the anticoagulation status (p = 1). Overall, 23 patients (79%) had a follow-up cerebral imaging with a median delay of 42 days [IQR 6-63] after admission. CSVT was still seen in 9 patients (31%). We found no difference regarding the persistence of CSVT between patients according to the anticoagulation status (p = 0.36). The median duration of anticoagulant treatment was 58 days [IQR 44-91] and one patient (3%) experienced adverse event related to anticoagulation.
Conclusion: There were minimal adverse events in patients with post traumatic CSVT treated with therapeutic anticoagulation. However, the effect of anticoagulation on outcomes needs to be confirmed in further studies.
Competing Interests: Declaration of competing interest The authors have no conflict of interest to declare.
(© 2023 European Paediatric Neurology Society. Published by Elsevier Ltd. All rights reserved.)