Treatment Outcomes of In-Office KTP Ablation of Vocal Fold Granulomas

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Abstract

Objective:

To determine the effectiveness of in-office potassium-titanyl-phosphate (KTP) treatment of vocal fold granulomas and identify any predictors of complete lesion resolution.

Methods:

A retrospective review of patients who underwent in-office KTP ablation of vocal fold granulomas between 2007 and 2016 was performed. Medical records were reviewed for use of acid suppression medication, prior surgical treatment, voice therapy, laser settings, number of treatments, follow-up time, and Voice Handicap Index-10 (VHI-10) scores.

Results:

Twenty-six patients underwent a total of 43 laser treatments. Eighty percent of patients were previously on acid suppression medication, and 42.3% had failed previous endoscopic treatments. Patients underwent a mean number of 1.65 ± 1.16 in-office treatments with decrease in size in 96.2% of cases. The VHI-10 was not significantly affected. Complete resolution occurred in 73.1% of cases with follow-up time ranging from 1 to 86 months (median = 9.5 months). No recurrences occurred in patients with complete resolution. Other than undergoing a single KTP treatment, no variable was found to be predictive of complete lesion resolution. Granuloma etiology was not predictive of lesion resolution but did correlate with symptom improvement.

Conclusion:

In-office pulsed KTP laser is an effective treatment option for vocal fold granulomas as the lesion resolves in the majority of cases.

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