Very high blood pressure in acute stroke

Area of Science:

• Neurology
• Cardiology
• Hypertension Research

Background:

• Severe hypertension is a critical factor in acute stroke.
• Understanding patient characteristics associated with severe hypertension during stroke is crucial for risk stratification and management.

Purpose of the Study:

• To compare the clinical and demographic characteristics of acute stroke patients with and without severe hypertension (systolic blood pressure >= 200 mmHg, diastolic blood pressure >= 115 mmHg).
• To investigate potential contributing factors such as hypertension history and alcohol abuse.
• To explore the relationship between severe hypertension and stroke lesion characteristics, clinical presentation, and outcomes.

Main Methods:

• Retrospective analysis of 388 consecutive acute stroke patients.
• Comparison of a subgroup (n=27) with severe hypertension against a control group (n=361).
• Analysis of medical records for demographic data, medical history (hypertension, alcohol abuse), lesion characteristics, clinical symptoms, and mortality.

Main Results:

• Patients with severe hypertension were younger (65 vs. 73 years) and had a significantly higher history of hypertension (78% vs. 42%).
• Hypertensive cardiac and vascular manifestations were more frequent in the severe hypertension group.
• Mortality was substantially higher in the severe hypertension group (30% vs. 14%, P < 0.05).
• No definitive statistical relationship was found between severe hypertension and the size or location of brain lesions, though very large lesions, especially hemorrhages, might be reactive.

Conclusions:

• Severe hypertension in acute stroke is associated with younger age, a strong history of hypertension, and increased mortality.
• Alcohol abuse may play a role in this patient subgroup.
• While lesion characteristics were not directly correlated, severe hypertension might be a reactive response to large brain lesions, particularly hemorrhages.