TYPE II ENDOLEAKS FOLLOWING ENDOVASCULAR ANEURYSM REPAIR

OBJECTIVES:
Type II endoleaks are a common complication of endovascular aneurysm repair (EVAR) and have been assumed to be an unavoidable consequence of the repair method and independent of the type of endograft used. Some recent data have suggested that the rate of type II endoleaks may also be graft-dependent. We reviewed our clinical experience with four endografts to determine the behavior of type II endoleaks and whether they are graft-specific.
METHODS:
All elective EVAR cases from 2000 to 2006 were retrospectively analyzed using electronic medical records in the clinic office.
RESULTS:
During the study period, 206 patients underwent elective EVAR and had an adequate imaging follow up at one of the specified time points. We detected a total of 27 type II endoleaks (13% total). As far as the individual endografts results: the Medtronic AneuRx had 11 (14.9%), the Gore Excluder had 8 (16.7%), the Cook Zenith had 4 (10%), and the Guidant Ancure had 4 (8.8%) of the type II endoleaks. Kaplan-Meier analysis was used to compare the four endograft products in terms of freedom from type II endoleaks over the duration of follow up time in months.
CONCLUSIONS:
Type II endoleaks occurred in 13% of our patients treated by EVAR. Although our study had a higher percentage of Excluder type II endoleaks, this difference was not statistically significant.