Stroke induces disturbances of autonomic system function.

Area of Science:

• Neurology
• Autonomic Nervous System Research
• Clinical Neurophysiology

Background:

• Autonomic dysfunction significantly impacts post-stroke patient health and can lead to severe complications.
• Evaluating autonomic disturbances is crucial for managing stroke patients.

Purpose of the Study:

• To determine the prevalence of autonomic disturbances in post-stroke patients.
• To analyze correlations between different methods used for assessing autonomic function.

Main Methods:

• The study involved 22 ischemic stroke patients (mean age 64.6 years).
• Autonomic nervous system evaluation included a questionnaire, cardiovascular reflex tests (Ewing battery), and sympathetic skin response (SSR).

Main Results:

• Dysautonomia was prevalent, with 72.7% abnormal questionnaire scores and 31.8% diagnosed with cardiovascular autonomic dysfunction.
• Abnormal sympathetic skin response (SSR) was observed in 81.8% of patients.
• The Ewing battery results correlated significantly with the questionnaire and SSR.

Conclusions:

• Autonomic disturbances affecting both sympathetic and parasympathetic systems are confirmed in post-stroke patients.
• Sympathetic skin response (SSR) is identified as a highly sensitive method for evaluating autonomic function in stroke survivors.
• The correlation between SSR and the Ewing battery supports the clinical utility of neurophysiological methods for autonomic assessment.