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Long-Term Headache Outcome and Radiological Correlates in Patients With Intracranial Hypotension
Marina Romozzi1,2, Giuseppe Garignano3, Antonio Funcis1,2
1Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy.
European Journal of Neurology
|February 12, 2025
Summary
Intracranial hypotension (IH) often causes persistent headaches, even beyond one year. Epidural blood patch (EBP) treatment significantly reduces the likelihood of long-term headache in IH patients.
Area of Science:
- Neurology
- Neurosurgery
- Radiology
Background:
- Headache is a primary symptom of intracranial hypotension (IH), often presenting with orthostatic features.
- The long-term outcomes and headache characteristics in IH patients remain under-explored.
Purpose of the Study:
- To investigate the persistence and characteristics of headache in patients diagnosed with intracranial hypotension.
- To identify factors influencing long-term headache outcomes in IH.
Main Methods:
- A cohort study included 45 patients diagnosed with IH between 2018 and 2024.
- Data collected included demographics, headache features, etiology, treatment (epidural blood patch [EBP], surgical, conservative), and MRI findings.
- Follow-up assessed headache persistence at ≥12 months post-treatment.
Main Results:
- Headache was present in 84.4% of patients at presentation, with 71.1% experiencing orthostatic features.
- After a mean follow-up of 31.6 months, 53.7% of patients reported headache persisting ≥12 months.
- Epidural blood patch (EBP) was associated with significantly lower headache persistence (27.3%) compared to no EBP (63.2%) (p=0.021).
- EBP was the sole predictor of reduced likelihood of persistent headache (OR=0.082, p=0.041).
Conclusions:
- A significant portion of intracranial hypotension patients experience persistent headaches beyond one year.
- Epidural blood patch (EBP) emerged as the only significant predictor for reduced long-term headache persistence in IH patients.
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