He and his team have also performed angioplasty (percutaneous transluminal angioplasty, or PTA), on 105 of the patients, to open up key neck veins, called the azygos vein and the internal jugular vein. The procedure has been generally well tolerated by the patients, although some experienced bleeding and blood clotting.
Bruno reports that, among the patients treated with angioplasty, 85 per cent have reported a reduction in episodes of vertigo, while 70 per cent report a reduced feeling of fullness in their affected ear or ears.
Fifty per cent have also experienced an improvement in hearing loss, while 35 per cent have experienced reduced tinnitus.
After following for two years the first 40 patients to undergo the angioplasty, Bruno's team reports that 75 per cent have reported an improved quality of life compared to the period before the procedure.
Some of the findings were recently published in JVIR: