The Role of Intra-Operative Duplex Ultrasonography Following Translabyrinthine Approach for Vestibular Schwannoma.

Publication/Presentation Date

1-1-2022

Abstract

OBJECTIVE: Sigmoid sinus (SS) stenosis is a complication of translabyrinthine approach. Velocity changes in the SS measured by intra-operative doppler ultrasound may help in identifying patients at risk for sinus occlusion.

PATIENTS: SS velocity was measured using doppler ultrasound prior to opening dura and again prior to placement of the abdominal fat graft.

INTERVENTION: Data collected included: patient age, surgical side, sinus dominance, tumor volume, intra-operative doppler ultrasound measurements, post-operative venous sinus imaging, anticoagulation, and morbidities and mortalities.

MAIN OUTCOME MEASURE: SS patency and velocity.

RESULTS: Eight patients were included in the analysis (22 to 69 years). Four had left-sided and four had right-sided craniotomies. Sigmoid sinuses were either right-side dominant or co-dominant. The mean velocity ± standard deviation (SD) prior to dura opening and abdominal fat packing was 23.2 ± 11.3 and 25.5 ± 13.9 cm/s, respectively,

CONCLUSION: SS velocity changes before and after tumor resection were not predictive of sinus occlusion. We hypothesize that sinus occlusion may be caused by related factors other than thrombosis, such as external compression of the sinus secondary to abdominal fat grafting.

Volume

9

First Page

853704

Last Page

853704

ISSN

2296-875X

Disciplines

Medicine and Health Sciences

PubMedID

35574538

Department(s)

Department of Surgery Faculty

Document Type

Article

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