Abstract TP13: Predicting Outcomes After Successful Endovascular Thrombectomy Damage Control

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Introduction: Endovascular Therapy (ET) has become the new standard of care for treating acute ischemic stroke (AIS) patients with Emergent Large Vessel Occlusion (ELVO). There are numerous tools that predict outcomes of ischemic stroke patients including those given IV tPA, however, there are no published tools for predicting outcomes after ET.Methods: From January 2015-March 2017, 109 AIS patients received ET. Patients with unsuccessful ET (TICI 0-2a) or with incomplete 90 day follow-up data were excluded, leaving 42 for final analysis. Primary outcome was defined as MRS at 90 days (good outcome MRS <=3, bad outcome MRS >3). Of the variables analyzed, 90 day outcomes correlated with age, diabetes, thrombolytic use, onset to groin time, and NIHSS scores. Numerical values were assigned to each variable based on OR analysis and the resulting score (range 0-8) was plotted against 90 day MRS and ROC analysis defined a cutoff value.Results: The relative score for each non-binary variable was approximated based on the corresponding OR identified during ROC analysis. Using the DamAGE cONTrol scoring tool (figure 1), a cut off of 4 points yielded Sn 0.82, Sp 0.95, p <0.001, & AUC 0.94.Conclusion: DamAGE cONTrol represents a novel scoring tool which uses pre-intervention characteristics to predict outcome after successful ET. This type of tool may facilitate more informed discussions regarding the value of performing ET, as well as control unnecessary transfers.

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