Defining high risk in endovascular aneurysm repair

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Presentation transcript:

Defining high risk in endovascular aneurysm repair Tara M. Mastracci, MD, MSc.(HRM), Roy K. Greenberg, MD, Adrian V. Hernandez, MD, PhD, Catherine Morales, BSc  Journal of Vascular Surgery  Volume 51, Issue 5, Pages 1088-1095.e1 (May 2010) DOI: 10.1016/j.jvs.2009.12.026 Copyright © 2010 Society for Vascular Surgery Terms and Conditions

Fig 1 Kaplan Meier curve for survival of patients in the fenestrated and bifurcated groups. Journal of Vascular Surgery 2010 51, 1088-1095.e1DOI: (10.1016/j.jvs.2009.12.026) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

Fig 2 Nomogram, predicting 2-year, 4-year, and 8-year survival after aneurysm intervention. Journal of Vascular Surgery 2010 51, 1088-1095.e1DOI: (10.1016/j.jvs.2009.12.026) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

Fig 3, online only Receiver operating calibration (ROC) curve to evaluation discrimination and calibration. Discrimination of final model: Corrected c-statistic (area under ROC curve): 0.68 (moderate discrimination). Calibration of the final model: Model well calibrated. Use 4-year as example. Journal of Vascular Surgery 2010 51, 1088-1095.e1DOI: (10.1016/j.jvs.2009.12.026) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

Fig 4, online only Calibration from external validation. A, Calibration plot, 5 years, high risk subgroup. B, Calibration plot, 5 years, standard risk subgroup. Journal of Vascular Surgery 2010 51, 1088-1095.e1DOI: (10.1016/j.jvs.2009.12.026) Copyright © 2010 Society for Vascular Surgery Terms and Conditions