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Case-Control Study of Impairments Associated with Recovery from "Pusher Syndrome" after Stroke: Logistic Regression
Suzanne R Babyar1, Margaret G E Peterson2, Michael Reding3
1Department of Physical Therapy, Hunter College, New York, New York.
Summary
Older age and severe stroke impairments predict delayed recovery from lateropulsion (pusher syndrome), with factors varying by lesion side. This aids in planning rehabilitation and discharge for stroke survivors.
Area of Science:
- Neurorehabilitation
- Stroke recovery
- Clinical neurology
Background:
- Lateropulsion, or pusher syndrome, is a common post-stroke impairment affecting balance and posture.
- Understanding factors influencing lateropulsion recovery is crucial for effective rehabilitation strategies.
- This study investigates demographic and impairment-related predictors of lateropulsion recovery based on stroke lesion side.
Purpose of the Study:
- To identify demographic and stroke severity factors differentiating patients who recover from lateropulsion from those who do not.
- To explore the influence of lesion side on predictors of lateropulsion recovery.
- To inform early rehabilitation decision-making for stroke patients with lateropulsion.
Main Methods:
- A case-control study included patients with specific admission motor and functional independence scores.
- Lateropulsion status at discharge was determined using the Burke Lateropulsion Scale.
- Logistic regression and chi-squared analyses examined predictors including age, gender, motor scores, limb placement, cognitive function, and neglect.
Main Results:
- For left brain lesions, older age and worse admission motor status predicted persistent lateropulsion.
- For right brain lesions, older age, greater limb placement error, and lower cognitive scores were associated with persistent lateropulsion.
- Visuospatial neglect did not significantly impact lateropulsion recovery.
Conclusions:
- Older age and severe admission impairments are linked to delayed lateropulsion recovery, with side-specific differences.
- Lesion side and admission characteristics are valuable for early rehabilitation planning, intervention selection, and discharge decisions.
- Findings support tailored rehabilitation approaches based on stroke laterality and initial patient status.
