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Anticoagulation Therapy Timing in Atrial Fibrillation After Acute and Chronic Subdural Hematoma — ATTAACH  

Atrial Fibrillation Clinical Trial

Official title:
Pilot Randomized Controlled Trial of Anticoagulation Therapy Timing in Atrial Fibrillation After Acute and Chronic Subdural Hematoma (ATTAACH)

Clinical Trial Summary

Subdural hematoma (SDH) is a common disorder that typically results from head trauma and has increased in prevalence in recent decades. Acute subdural hematomas (aSDH) are found in up to one-third of patients with severe traumatic brain injury and are associated with an unfavorable outcome in the majority of cases. Chronic subdural hematomas (cSDH) commonly occur in the elderly population which has highest risk for developing cSDH with or without minor head injuries. The combination of the aging population, higher incidence of disease in progressively older patients, and high morbidity and mortality renders SDH a growing problem within Canada with significant health-systems burden. SDH commonly recurs even after successful surgical drainage. Atrial fibrillation (AF) is one of the most common medical comorbidities in patients with cSDH, especially in the elderly, with an expected doubling of its prevalence by the year 2030. Patients with AF are at recognized risk for stroke, so anticoagulation is indicated for almost all patients. Anticoagulation is held prior to SDH drainage to minimize the risk of intraoperative and early postoperative bleeding. After surgery, the risk of SDH recurrence must be balanced against the risk of thromboembolic events such as stroke when deciding the timing of resuming anticoagulation. Currently the decision on when to restart anticoagulation after SDH is made by clinicians on an individual patient basis without any high-quality evidence to guide this decision. The two most common approaches are: 1) early resumption of anticoagulation after 30 days of diagnosis or surgery; and 2) delayed resumption of anticoagulation after 90 days of diagnosis or surgery. However, which of these approaches leads to the best functional outcomes for patients is unclear. Our pilot RCT will test the feasibility of comparing these 2 approaches in a larger multicenter RCT.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05472766
Study type Interventional
Source Sunnybrook Health Sciences Centre
Contact
Status Terminated
Phase N/A
Start date November 24, 2022
Completion date May 10, 2024
View Details
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