OnabotulinumtoxinA injection towards the SPG for treating symptoms of refractory chronic rhinosinusitis with nasal polyposis: a pilot study.
Kent Are JamtøyErling TronvikDaniel Fossum BratbakJoan CrespiLars Jacob StovnerIrina AschehougWenche Moe ThorstensenPublished in: Acta oto-laryngologica (2021)
Injection of BTA toward the SPG using the MultiGuide® in patients with CRSwNP appears to be safe but with a potential for moderately disabling side effects. The study indicates a beneficial effect on nasal obstruction.