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Malignant Transformation in Glottic Dysplasia Treated With Photoangiolytic LASER – A Systematic Review and Meta-analysis

      Summary

      Objective

      This systematic review and meta-analysis seeks to characterize the rate of malignant progression among patients with laryngeal dysplasia treated with photoangiolytic laser and compare to prior systematic reviews of conventional surgical approaches.

      Methods

      OVIDMedline, Pubmed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), and Google Scholar were searched, including terms related to patients with vocal fold dysplasia who were treated by angiolytic laser ablation. Some articles already known to authors or identified through hand searching were included.

      Results

      Six articles with 155 cases were included. Two studies used potassium titanyl phosphate exclusively, one solely used the pulsed dye laser, and three studies utilized both laser types during the study period. The pooled overall mean of malignant progression for patients with laryngeal dysplasia treated with photoangiolytic laser was 12%, as calculated by conducting a meta-analysis of single arm proportion.

      Conclusion

      Laryngeal dysplasia is a premalignant lesion which confers a risk of progression to malignancy. After biopsy to establish the diagnosis there are multiple surgical techniques available for treatment with the goal of lesion eradication and voice preservation. In our review, there is a low malignant transformation rate for patients treated via with photoangiolytic laser.

      Key Words

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