A Comparison of Potassium Titanyl Phosphate Laser and Pingyangmycin as Treatment for Adult Laryngeal Hemangioma.

Objective: To evaluate the curative effect of Potassium titanyl phosphate (KTP) laser and pingyangmycin injection for adult laryngeal hemangiomas (ALH). Methods: This was a retrospective study conducted on patients treated with either KTP laser or pingyangmycin injection to assess the efficacy of both treatment and compare the effects on different types of adult laryngeal hemangioma. Results: The ordinal logistic regression test showed the surgery methods had no effect on the therapeutic results. On the contrary, the shape of ALH and the interaction between surgical procedures and ALH shape affected the prognosis of the ALH. This meant that the shape of ALH might be a confounding factor affecting the therapeutic effect of ALH. Thus, the Cochran-Mantel-Haenszel test which is a stratification analysis was used to assess the interaction between surgical procedures and ALH shape. Then better results were achieved using the KTP laser for the plane and raised types of ALH. Conclusions: The selection of surgical procedures (the KTP laser or pingyangmycin injection approaches) affects the treatment of ALH. For plane and raised ALH, the KTP laser may be recommended.