The range of trials covered is impressive, spanning from MR CLEAN to ANGEL-ASPECT. However, the simplification of criteria, such as assuming CT/CTA-based selection for RESCUE-Japan LIMIT, means the tool is not perfectly accurate in all edge cases. It is a useful starting point for eligibility checks but requires careful interpretation. The explicit notation of these simplifications on trial cards helps mitigate some risk. Ultimately, it is a valuable educational aid that saves time but should not replace clinical judgment or verification against the primary trial publications.
EVTcalc provides excellent coverage across major mechanical thrombectomy trials, including early-window, extended-window, large-core, and posterior-circulation studies like MR CLEAN, DAWN, and BAOCHE. The interface clearly resolves each criterion to pass, fail, or missing, ensuring transparency in eligibility determination. Trials the patient does not qualify for collapse into a single row showing the disqualifying reason, which helps maintain focus on relevant options. Optional perfusion fields are handled intelligently, showing insufficient data when needed rather than forcing a false verdict. The tool is straightforward to use, encoding clinical values only for shareable links without patient identifiers. It is an independent educational resource, not affiliated with MDCalc, and clearly states that criteria are simplified. Users are advised to verify against primary publications before acting, which is a responsible approach for a decision-support reference.
The ability to enter patient data once and see trial eligibility at a glance is highly convenient. Collapsing non-qualifying trials reduces clutter effectively, making it easier to focus on relevant studies during busy shifts.
EVTcalc appears to be a functional reference tool for evaluating mechanical thrombectomy trial eligibility. The interface allows entry of clinical data and instantly displays pass, fail, or missing status against various landmark trials. While the criteria are generally clear, some simplifications are noted, requiring verification against primary publications. It serves as a convenient educational aid rather than a definitive clinical decision engine.
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EVTcalc is a web-based clinical decision tool that assesses whether a stroke patient is eligible for mechanical thrombectomy based on criteria from landmark clinical trials. It accepts inputs covering clinical factors such as age, NIHSS score, time since onset, pre-stroke modified Rankin Scale (mRS), IV thrombolytic use, and non-contrast CT findings including ASPECTS and pc-ASPECTS scores. Users can also enter CT angiography data on occlusion site and optional CT perfusion values such as ischemic core volume and mismatch ratio. The tool compares the entered case against eligibility criteria from trials including MR CLEAN, ESCAPE, SWIFT PRIME, EXTEND-IA, REVASCAT, DEFUSE-3, DAWN, RESCUE-Japan, LIMIT, SELECT2, and ANGEL-ASPECT, and can generate a shareable link that encodes the clinical values without patient identifiers. Additional information is provided on large-core informed consent considerations, and the site includes a contact form for reporting errors, requesting features, or academic collaboration.