Comparative diagnostic performance of motor-evoked potential alarm thresholds for predicting postoperative neurological decline in intradural extramedullary spinal tumor surgery: a systematic review and meta-analysis.
Łukasz Antkowiak, Marta Antkowiak, Anna Kasperczuk et al.
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In 30 seconds
This systematic review and meta-analysis evaluated the diagnostic performance of motor-evoked potential (MEP) alarm thresholds in predicting postoperative neurological decline during intradural extramedullary spinal tumor surgery. Sixteen studies were analyzed, revealing that the 50%-level MEP amplitude decline threshold had a sensitivity of 94.1% and specificity of 98.4% for short-term motor deficit prediction.
Key findings
- The 50%-level MEP amplitude decline threshold had a sensitivity of 94.1% and specificity of 98.4% for predicting short-term motor deficits.
- Both 50%- and 70%-level thresholds significantly predicted long-term motor deficits.
- Complete MEP amplitude loss showed significant diagnostic performance for short-term evaluation.
- Higher MEP thresholds retained diagnostic utility in predicting motor deficits.
Why it matters
Understanding the effectiveness of different MEP thresholds can enhance intraoperative monitoring strategies, potentially improving patient outcomes by allowing for timely interventions during spinal tumor surgeries.
What to keep in mind
Differences in sample size, tumor location, histology, and outcome reporting between threshold groups may affect the generalizability of the findings.