Related Experiment Videos
Course, management and outcome of oral-anticoagulant-related intracranial haemorrhages
J Berwaerts1, O J Robb, R S Dykhuizen
1Clinical Pharmacology Unit, Aberdeen Royal Infirmary, Foresterhill. Joris-M-Berwaerts@sbphrd
Insights
Oral anticoagulant-related intracranial hemorrhages show higher in-hospital mortality than unrelated ones. Reversal measures were not consistently applied, highlighting a need for further research into anticoagulant reversal strategies.
Area of Science:
- Neurology
- Hematology
- Radiology
Background:
- Oral anticoagulants (OACs) are widely used but increase bleeding risk.
- Intracranial hemorrhage (ICH) is a serious complication of OAC therapy.
- Understanding OAC-related ICH characteristics is crucial for patient management.
Purpose of the Study:
- To compare clinical and radiological features of OAC-related ICH versus non-OAC ICH.
- To evaluate OAC reversal strategies and their short-term outcomes.
- To identify factors influencing mortality in OAC-related ICH.
Main Methods:
- Retrospective analysis of 68 patients with ICH over six years.
- Comparison of clinical data and CT scan findings between OAC users and non-users.
- Assessment of OAC reversal measures and in-hospital mortality.
Main Results:
- No significant differences in clinical features or hematoma size (subdural or intracerebral) between OAC-related and unrelated ICH.
- OAC reversal measures were not administered in 38% of OAC-treated patients.
- In-hospital mortality was significantly higher for OAC-related ICH (38%) compared to unrelated ICH (18%).
Conclusions:
- OAC-related ICH presents similarly to non-OAC ICH on initial assessment but carries a worse prognosis.
- Inconsistent application of OAC reversal therapies may contribute to poorer outcomes.
- Prospective studies are needed to optimize anticoagulant reversal and improve outcomes in OAC-related ICH.
Abstract:
The aim of this study was to compare the clinical course and radiological features of oral anticoagulant (OAC)-related intracranial haemorrhages with those of haemorrhages unrelated to OAC use admitted over the last six years to a tertiary care centre in the North of Scotland. We furthermore wished to determine the measures taken for reversal of OAC therapy and the resulting short-term outcome. Sixty-eight patients had been treated with OACs at the time of intracranial haemorrhage (32% subdural, 62% intracerebral). Patients admitted with OAC-related and unrelated haemorrhages did not differ significantly in any of the clinical features considered. On CT scan, there was no significant difference according to OAC use in the mean size of subdural (depth 15 +/- 5 vs. 18 +/- 8 mm, p = 0.36), or intracerebral haematomas (max. diameter 40 +/- 21 vs. 41 +/- 20 mm, p = 0.73). No reversal measures were taken in 38% of OAC-treated patients. In-hospital mortality was significantly higher for OAC-related haemorrhages compared to unrelated haemorrhages (38% vs. 18%, p = 0.001). To further elucidate the effects of anticoagulant reversal on the outcome of OAC-related intracranial haemorrhages, a large-scale prospective study is warranted.
Related Concept Videos
Venous Thrombosis III: Interprofessional Care
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Hemorrhagic Stroke l: Introduction
Hemorrhagic Stroke ll: Pathophysiology
Venous Thrombosis IV: Nursing Management