Impact of Parakinesia brachialis oscitans on limb functional recovery after stroke: a cohort study
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By
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Congcong Wang
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Hua Hu
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Runying Wang
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Bin Xu
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Jia Du
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Zhou Su
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Shuangxi Guo
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Jingkai Wang
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Xiaojun Tian
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May 8, 2026
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Clinical Scorecard: Effects of Parakinesia Brachialis Oscitans on Upper Limb Recovery Following Stroke: A Cohort Analysis
At a Glance
| Category | Detail |
|---|
| Condition | Parakinesia Brachialis Oscitans (PBO) following ischemic stroke |
| Key Mechanisms | Involuntary elevation of the paralyzed upper limb during yawning, indicating potential for motor recovery |
| Target Population | Patients aged 55-75 years with acute ischemic stroke |
| Care Setting | Acute care and rehabilitation settings |
Key Highlights
- PBO is associated with better motor recovery at 3 months post-stroke.
- Patients with resolved PBO within 1 month showed significantly higher FMA scores.
- The study utilized a propensity score-matched design for balanced comparison.
Guideline-Based Recommendations
Diagnosis
- Confirm PBO through clinical observation and video evidence.
Management
- Implement standardized rehabilitation management for all patients.
Monitoring & Follow-up
- Assess functional recovery using FMA and Lovett classification at 3 months.
Risks
- Exclude patients with severe psychiatric disorders or unstable chronic conditions.
Patient & Prescribing Data
Patients with acute ischemic stroke, aged 55-75 years.
PBO may serve as a clinical biomarker for predicting functional recovery.
Clinical Best Practices
- Conduct early rehabilitation therapy to improve functional outcomes.
- Monitor PBO status to guide rehabilitation intensity and timing.
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