Blood pressure after stroke

Area of Science:

• Neurology
• Cardiology
• Critical Care Medicine

Background:

• Acute stroke frequently presents with elevated blood pressure.
• Understanding the natural course of blood pressure post-stroke is crucial for management.
• The physiological basis for early hypertension in stroke is not fully elucidated.

Purpose of the Study:

• To investigate the trend of blood pressure in acute stroke patients during the initial ten days of hospitalization.
• To determine if blood pressure reduction occurs spontaneously without antihypertensive intervention.
• To explore the relationship between blood pressure changes and brain function recovery.

Main Methods:

• Prospective observational study of 334 consecutive acute stroke admissions.
• Serial blood pressure measurements were recorded upon admission and on the tenth hospital day.
• No specific antihypertensive therapies were administered during the observation period.

Main Results:

• 84% of patients exhibited elevated blood pressure on admission day.
• Blood pressure spontaneously decreased by an average of 20 mm Hg systolic and 10 mm Hg diastolic within ten days.
• Only one-third of cases still showed elevated blood pressure by the tenth hospital day.

Conclusions:

• Early hypertension following acute stroke is likely a physiological response to cerebral ischemia.
• Spontaneous blood pressure reduction correlates with neurological recovery.
• This natural decline suggests caution in the immediate antihypertensive treatment of acute stroke.