Assessment of Transverse-sigmoid Sinus Dural Arteriovenous Fistula using Transcranial Doppler Ultrasonography: A Case Report

The most common symptoms of transverse-sigmoid sinus dural arteriovenous fistula (TS-S DAVF) are pulsatile tinnitus and headache. The clinical characteristics lack specificity and may lead to misdiagnosis or delayed diagnosis. The noninvasive and convenient nature of neurovascular ultrasound has made it an important screening tool for lesions....

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No actionable change to routine audiology practice; this case report illustrates a rare vascular cause of pulsatile tinnitus and supports referral to neurology or neurovascular services when pulsatile tinnitus is present — a recommendation already consistent with existing guidelines.

Pulsatile tinnitus is often under-investigated in audiology settings; this report reinforces that vascular pathology must be considered and appropriate cross-specialty referral pathways maintained.

1. 01Single case report of transverse-sigmoid sinus dural arteriovenous fistula (an abnormal blood-vessel connection near the brain) presenting as pulsatile tinnitus.
2. 02Transcranial Doppler ultrasonography (a non-invasive ultrasound of blood flow to the brain) was used for assessment.
3. 03Published in Current Medical Imaging (PMID 42634562).
4. 04Case reports provide the lowest level of clinical evidence and cannot be generalised.
5. 05Findings support existing guidance to investigate pulsatile tinnitus for vascular causes.

PMID

42634562

DOI

10.2174/0115734056473694260723114721.

Journal

Current Medical Imaging

Publication type

case_report

Evidence level

4

Sample size

1

Population

Single patient presenting with pulsatile tinnitus due to transverse-sigmoid sinus dural arteriovenous fistula

Intervention

Transcranial Doppler ultrasonography assessment