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June 10, 2026Open Access

Comparing RAMA-LVO with other Prehospital Large-Vessel Occlusion Prediction Scales in Suspected Acute Stroke; A Retrospective Cross-sectional Study

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Authors

TCTorntarn CharascharungkiatVWVaraporn WangviboonchaiCYChaiyaporn Yuksen

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Overview

Retrospective cross-sectional study compares RAMA-LVO with other prediction scales for stroke outcomes, indicating effective triage.

Key Points

  • This study aims to validate and compare the RAMA-LVO prediction scale with other prehospital LVO prediction scales for acute stroke.
  • Retrospective, single-center study assessing suspected acute stroke patients in an emergency department.
  • Evaluated four prehospital LVO prediction scales including RAMA-LVO, RACE, FAST-ED, and LAMS against vascular imaging findings.
  • Used area under the receiver operating characteristic curve (AUROC) for diagnostic performance analysis and calibration plots for model fit.
  • Out of 853 included patients, 124 (14.54%) were confirmed to have large-vessel occlusion (LVO).
  • FAST-ED showed the highest discriminative performance (AUROC = 0.873), followed closely by RAMA-LVO (AUROC = 0.858).
  • RAMA-LVO demonstrated the highest sensitivity but slightly lower specificity compared to the other scales.

Cite This Study

Charascharungkiat et al. (2026) studied this question.

synapsesocial.com/papers/6a28fef66f82f25be989c183https://doi.org/10.22037/aaem.v14i1.2928
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Comparison of Prehospital Diagnostic Scores for Identifying Large Vessel Occlusions: A Systematic Review and Meta-Analysis2026
  2. 2Prehospital Large-Vessel Occlusion Stroke Detection Scales2025 · 12 citations
  3. 3Stroke Scales for Large Vessel Occlusion in the Prehospital Emergency Setting: A Systematic Review and Meta‐Analysis2026
  4. 4Diagnostic performance of prehospital large-vessel occlusion detection scales in patients with suspected acute stroke: a retrospective validation study. The Akershus Study of Ischemic Stroke and Thrombolysis2026
  5. 5Protocol for Systematic Review and Meta-Analysis of Prehospital Large Vessel Occlusion Screening Scales2024 · 1 citations