Abstract
Contact granuloma is a difficult-to-treat laryngeal disorder associated with vocal abuse, habitual throat clearing, and laryngopharyngeal reflux. It has a high propensity for persistence and recurrence despite many treatment alternatives. To present our experience with recurrent contact granuloma treated with microlaryngoscopic excision and botulinum toxin injection. Case series. The follow-up period had a mean (range) of 41 (11-88) months. Tertiary referral university clinic. Twenty patients with recurrent, grade 3 and grade 4 contact granuloma whose lesion was excised at least once after failure of conservative treatments. Microlaryngoscopic excision and botulinum toxin type A injection into the region of the bilateral thyroarytenoid and lateral cricoarytenoid muscles. Disappearance of contact granuloma. Seventeen patients were cured of their contact granuloma. Three patients experienced recurrences: 2 received botulinum toxin injection only as outpatients and recovered. The other patient required reexcision and reinjection under general anesthesia. These 3 patients were free of granuloma at their last follow-up. After failed conservative treatment, microlaryngoscopic excision and botulinum toxin type A injection is successful in the treatment of recurrent contact granuloma. Removing recurrent granulomas can result in a low recurrence rate if botulinum toxin type A is added at the time of removal.
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