Objective:

To evaluate the efficacy and safety of magnetic resonance-guided focused ultrasound (MRgFUS) in treating Parkinson's disease by summarizing post-intervention motor outcomes and safety data.

Key Findings:

• The meta-analysis utilized a single-arm approach, pooling post-intervention motor scores without control groups, limiting causal inference.
• The reliance on absolute post-treatment scores may distort the estimated treatment effect due to baseline variability, potentially leading to overinterpretation.
• Statistical methods applied were inconsistent with those described, raising concerns about transparency and reproducibility.

Interpretation:

The findings should be interpreted as descriptive summaries rather than confirmatory evidence of treatment efficacy, highlighting the need for caution due to methodological limitations.

Limitations:

• Failure to incorporate baseline-adjusted comparisons may lead to overestimation of treatment benefits.
• High heterogeneity in baseline disease severity across studies complicates the interpretation of results and may affect treatment effect estimates.
• Inconsistencies in statistical methods used create ambiguity in effect estimates.

Conclusion:

Clarifying analytical strategies and re-analyzing outcomes using baseline-adjusted measures would enhance the study's scientific rigor, and future research should address these limitations.