E2066. Preoperative Spine Tumor Embolization: Clinical Outcomes and Embolization Completeness
Authors
Nima Omid-Fard;
University of British Columbia; University of Ottawa
Jean-Paul Salameh;
Ottawa Hospital Research Institute; Queen’s University
Matthew McInnes;
Ottawa Hospital Research Institute; University of Ottawa
Charles Fisher;
University of British Columbia; Vancouver General Hospital
Manraj Heran;
University of British Columbia; Vancouver General Hospital
Objective:
To assess the association between the impact of the completeness of preoperative spine tumor embolization and clinical outcomes including estimated blood loss (EBL), neurological status, and complications.
Materials and Methods:
This study was a retrospective chart review of all preoperative spine tumor embolization procedures performed over 11 years by a single operator (2007 - 2018) on 40 consecutive patients (mean age 58; 77.5% men) with 42 embolization procedures, of which surgery was done en bloc in 22 cases and intralesional in the remaining 20 cases. A multivariable negative binomial regression model was fit to examine the association between EBL and surgery type, tumor characteristics, embolization completeness, and operative duration.
Results:
Among intralesional surgeries, complete versus incomplete embolization was associated with reduced blood loss (772 vs 1428 mL, p < 0.001). There was no statistically significant difference in neurological outcomes or complications between groups. Highly vascular tumours correlated with greater blood loss than their less vascular counterparts, but tumor location did not have a statistically significant effect.
Conclusion:
This study supports complete devascularization as an important consideration to potentially minimize blood loss, given the clinical equipoise in the literature regarding the effect of embolization completeness.
