Does alcohol intoxication precipitate aneurysmal subarachnoid haemorrhage?

Area of Science:

• Neurology
• Toxicology
• Epidemiology

Background:

• Aneurysmal subarachnoid haemorrhage (aSAH) is a critical neurological condition.
• The role of alcohol consumption as a potential trigger for aSAH requires further investigation.

Purpose of the Study:

• To investigate the association between recent alcohol consumption and the occurrence of aneurysmal subarachnoid haemorrhage.
• To determine the prevalence of alcohol-related aSAH in different age and sex groups.

Main Methods:

• A study of 75 consecutive patients aged 15-55 diagnosed with aSAH.
• Data collection included patient history of alcohol consumption within 24 hours preceding the hemorrhage.
• Comparison of alcohol intoxication rates in aSAH patients with the general Finnish population.

Main Results:

• 19 out of 75 patients (25%) had consumed alcohol within 24 hours before the aSAH event.
• Alcohol-related aSAH was more prevalent in younger patients (15-40 years) at 33% compared to older patients (41-55 years) at 14%.
• Alcohol intoxication was significantly more common in aSAH patients than in the general population, with rates 2-4 times higher in males and 3-5 times higher in females.

Conclusions:

• Recent alcohol intoxication is a potential risk factor for aneurysmal subarachnoid haemorrhage.
• The risk associated with alcohol consumption appears to be higher in younger individuals and women.
• These findings highlight the importance of considering alcohol consumption in the context of aSAH etiology.