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<p>Benign vocal cord lesions, such as polyps, significantly impair voice quality and often result from vocal abuse or professional demands. Advanced surgical techniques such as microspot CO2 laser excision, coblation-assisted excision, and conventional cold instrumentation are employed for treatment. This study aimed to objectively compare the acoustic outcomes of microspot CO₂ laser excision and coblation-assisted excision to determine their relative efficacy. In a randomized controlled trial, 40 patients diagnosed with unilateral vocal cord polyp were randomly allocated to receive either microspot CO2 (Lumenis, Yokneam, Israel) excision or plasma ablation excision (Smith &amp; Nephew, Andover, Massachusetts, USA). The study compared the pre- and postoperative acoustic parameters related to frequency, perturbation, and noise and voice -break parameters in both groups. The MDVP module of the CSL software (Kay Pentax, USA) was used for acoustic analysis. Objective voice analysis conducted three months post-surgery revealed significant improvements in voice-related frequency, perturbation, and voice break parameters for both the microspot CO2 laser and coblation-assisted excision groups. On comparison, the microspot CO2 laser group exhibited superior improvement in objective acoustic outcomes compared with the coblation group (<i>p</i> &lt; 0.001). Microspot CO2 laser excision proved superior in improving objective acoustic outcomes compared with coblation-assisted excision for benign vocal fold polyps.</p>

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Comparing Acoustic Outcomes of Microspot CO2 Laser-Assisted Versus Plasma Ablation-Assisted Microlaryngeal Surgery for Vocal Cord Polyps: A Randomized Controlled Trial

  • 期刊论文

  • 发表日期：

    2026年2月14日

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  • Sajith Abraham,
  • Ramandeep Singh Virk,
  • Karthika Chettuvatti,
  • Parul Sud,
  • Karunya R. Gopal,
  • Nandu Sukumaran,
  • Vimmi Gautam,
  • Anant Basotia

摘要

Benign vocal cord lesions, such as polyps, significantly impair voice quality and often result from vocal abuse or professional demands. Advanced surgical techniques such as microspot CO2 laser excision, coblation-assisted excision, and conventional cold instrumentation are employed for treatment. This study aimed to objectively compare the acoustic outcomes of microspot CO₂ laser excision and coblation-assisted excision to determine their relative efficacy. In a randomized controlled trial, 40 patients diagnosed with unilateral vocal cord polyp were randomly allocated to receive either microspot CO2 (Lumenis, Yokneam, Israel) excision or plasma ablation excision (Smith & Nephew, Andover, Massachusetts, USA). The study compared the pre- and postoperative acoustic parameters related to frequency, perturbation, and noise and voice -break parameters in both groups. The MDVP module of the CSL software (Kay Pentax, USA) was used for acoustic analysis. Objective voice analysis conducted three months post-surgery revealed significant improvements in voice-related frequency, perturbation, and voice break parameters for both the microspot CO2 laser and coblation-assisted excision groups. On comparison, the microspot CO2 laser group exhibited superior improvement in objective acoustic outcomes compared with the coblation group (p < 0.001). Microspot CO2 laser excision proved superior in improving objective acoustic outcomes compared with coblation-assisted excision for benign vocal fold polyps.