Carotid cavernous fistulae (CCF) can be classified as high and low-flow or as having direct and indirect communication. Most commonly, management of high-flow CCF is with endovascular embolisation. The authors look at an alternative treatment for CCF in indirect low-flow types in the form of intermittent manual carotid compression (IMCC). Thirty-nine patients were included. The most common presenting features were proptosis and episcleral congestion (89.7%). The authors report that 35 patients had a good outcome with 19 having complete cure and 16 a partial cure. Interestingly, the mean time to diagnosis was 5.01 ± 4.10 months, with the longest time being 18 months. An important finding is that 12.8% (n=5) of patients developed superior ophthalmic vein thrombosis following IMCC and the intervention was stopped whilst the patients were given anti-coagulation. Four patients were able to restart IMCC and all five patients had a good outcome. This study shows a much higher success rate of IMCC compared to other studies and demonstrates that this type of intervention may have a role in health care systems where there is limited access to interventional radiology. We should be wary of the complications however, and should also remember that some low-flow CCF may spontaneously resolve and only require observation.
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Intermittent manual compression for CCF
Reviewed by Hetvi Bhatt
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Hetvi Bhatt
Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK.
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