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Published on: June 18, 2021
[Etiologic spectrum of intracerebral hemorrhage in young patients]
1Service de Neurochirurgie, Hôpital Hôtel-Dieu-de-France, Beyrouth, Liban. ronald_moussa@hotmail.com
Insights
In young adults with hemorrhagic stroke, a complete diagnostic workup successfully identifies the cause in about 70% of cases. This finding is consistent regardless of whether the patient has a history of high blood pressure.
Area of Science:
- Neurology
- Vascular Medicine
- Epidemiology
Context:
- Hemorrhagic stroke is rare in young adults, with a broad range of potential causes.
- Previous studies show varied etiologies, necessitating comprehensive investigation in this demographic.
- Understanding the causes of stroke in younger populations is crucial for targeted prevention and treatment strategies.
Purpose:
- To determine the range of etiologies for hemorrhagic stroke in young patients (18-55 years) who underwent thorough investigation.
- To assess the relationship between the identified etiology and a history of high blood pressure in this patient group.
Summary:
- A population-based study reviewed 130 patients aged 18-55 with hemorrhagic stroke, excluding those with isolated subarachnoid or intraventricular hemorrhage.
- Etiology was established in 70.4% of cases with complete workup, with arteriovenous malformations, aneurysms, and hematological disorders being common causes.
- Despite complete investigations, 29.6% of cases remained without a determined etiology. A history of high blood pressure was present in 46.7% of a subgroup, with etiology identified in 71% of these cases.
Impact:
- Complete diagnostic evaluation is effective in identifying the cause of hemorrhagic stroke in approximately 70% of young survivors.
- The presence of high blood pressure history did not significantly alter the likelihood of establishing an etiology.
- Findings support the importance of comprehensive etiological workup in young patients with hemorrhagic stroke to guide management and prognosis.
Introduction:
Hemorrhagic stroke is uncommon in young patients. The etiologic spectrum is very wide in the literature. The purpose of this study was to determine the range of etiology in a group of patients completely investigated and to study the relation with a history of high blood pressure.
Patients And Methods:
We reviewed study database, clinical and diagnostic records of 130 patients identified in a population based study, aged 18 to 55 years presenting with hemorrhagic stroke. There were divided into two groups: 67 patients treated at Hotel-Dieu Hospital in Beirut, Lebanon, and 63 patients reviewed at Yale New Haven Hospital, Connecticut, USA. Patients presenting with selective subarachnoidal or intraventricular hemorrhage were excluded. Diagnostic evaluation was assessed for completeness (based on prospectively articulated evidence based criteria) and for identifiable etiology of hemorrhagic stroke and its relation to high blood pressure.
Results:
There were 84 cases (64%) with complete diagnostic workup. The most common cause of incomplete investigations in remaining cases was death, poor neurological condition and incomplete follow up. Hematoma was superficially located (lobar) in 59.2%, deep seated (thalamo-capsulo-lenticular) in 26%, within the brain stem in 8.7% and cerebellar in 6.1%. An etiology was established in 70.4% of cases (pial AVM 16.7%, aneurysms 15.5%, hematological disorders 13%, cavernous malformations 10.7%, tumors 4.8%, bleeding within ischemic area 3.8%, vasculitis 2.3%, venous thrombosis 1.2% and venous angioma 1.2%. 29.6% of patients remained with undetermined etiology despite complete investigations. In a subgroup of 45 patients, a history of high blood pressure was found in 46.7%. In this cohort, an underlying etiology was established in 71% of cases.
Conclusion:
Complete investigation can establish an etiology in 70% of young patients who survived hemorrhagic stroke, independently from the presence of a history of high blood pressure.
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