Management of T1-T2 glottic carcinoma: with a specific focus on T2 glottic carcinoma

During recent decades, many studies have been performed in patients with early glottic cancer, which provide new insight into the two main treatment modalities, TOLMS and radiotherapy, and their outcomes. The aim of this thesis was: (i) What is the role of TOLMS in T2 glottic carcinoma in the Netherlands? (ii) Should more patients with T2 glottic carcinoma be treated with TOLMS? Within this thesis, we found that (i) the laryngeal preservation rate for T2 glottic carcinoma is higher after primary treatment with TOLMS than after primary treatment with radiotherapy; (ii) that the binary use (yes/no) for the involvement of the anterior commissure (AC) as a prognostic factor leads to inconsistent results, whereas studies with a more detailed classification of the AC show that there is a significant impact on oncological outcomes; (iii) that vertical involvement of the AC on imaging has a significant impact on local control not only in patients treated with TOLMS but also in patients receiving primary radiotherapy; and (iv) that patient with T2 glottic carcinoma treated with radiotherapy reported good long-term functional outcomes, although patients with tumors infiltrating the vocal fold muscle show a trend toward a higher degree of voice handicap than patients with tumor with only superficial spread.Department of Otorhinolaryngology and Head & Neck Surgery LUMC, Daleco Pharma, Meditop Medical Products, Pentax, Stopler, ViatrisLUMC / Geneeskund

Quality of life and voice outcome of patients treated with transoral CO2 laser microsurgery for early glottic carcinoma (T1-T2): a 2-year follow-up study

Purpose Longitudinal studies in laryngeal cancer can provide clinicians information about short-term and long-term functional outcomes, like quality of life (QoL) and voice outco

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Involvement of the Anterior Commissure in Early Glottic Cancer (Tis-T2): A Review of the Literature

Background: The impact of the anterior commissure (AC) involvement on prognosis in laryngeal cancer remains a topic of discussion with inconsistent results in the literature. This review examines AC involvement as a prognostic factor in patients with early glottic cancer (Tis-T2) treated with radiotherapy or transoral laser microsurgery (TLM). Methods: A systematic literature search was performed. Due to the heterogeneity of the data, no meta-analysis was implemented. Weighted averages were calculated if the appropriate data were extractable. Results: Thirty-four studies on radiotherapy and 23 on TLM fit the inclusion criteria. The majority of studies for both radiotherapy (67.7%) and TLM (75.0%) did not report a significant impact on oncological outcomes. Weighted averages were slightly lower in patients with AC involvement. The two studies that applied a more detailed classification showed a significant impact on the amount of AC involvement. Conclusions: Binary variables (yes/no) for AC involvement lead to inconsistent results. Studies that use more detailed classifications of the AC show that there is a significant impact on the outcome. To further elucidate the role of the AC, detailed stratification of tumors involving the AC need to be investigated in further studies for both treatment modalities.Otorhinolaryngolog

Oncologic and functional outcomes of patients treated with transoral CO2 laser microsurgery or radiotherapy for T2 glottic carcinoma: a systematic review of the literature

Otorhinolaryngolog

Evaluation of surgical margin status in patients with early glottic cancer (Tis-T2) treated with transoral CO2 laser microsurgery, on local control

Purpose To assess the impact of surgical margins status on local control in patients with primary early glottic (Tis-T2) squamous cell carcinoma after treatment with transoral CO2 laser microsurgery (TLM) and to assess the significance of additional wound bed biopsies.Methods Patients with Tis-T2 tumours treated with TLM type I-III resections according to the European Laryngological Society classification between 2009 and 2013 were included in retrospective analysis. Recurrence rate was determined in patients with free versus non-free specimen margins and wound biopsies. Five-year survival rates were determined using the Kaplan-Meier method. Prognostic impact of pT-category, resection margin status, tumour differentiation, wound bed biopsy status, and number of biopsies on local control (LC) were tested with the log-rank test.Results Eighty-four patients were included in the analysis. Positive margins were seen in 68 patients (81.0%). Margin status after TLM did not significantly influence LC (p = 0.489), however, additional wound bed biopsies were significantly associated with lower LC (p = 0.009). Five-year LC, disease-specific survival, overall survival and laryngeal preservation were 78.6, 78.0, 98.6 and 100%, respectively.Conclusions Additional wound bed biopsies can help predict local recurrence in patients treated with TLM for early glottic carcinoma. We propose that there is enough evidence to support a wait-and-see policy in patients with positive specimen margins and negative wound bed biopsies. For patients with positive wound bed biopsies, further treatment is warranted.Otorhinolaryngolog

Long-term voice outcomes of laryngeal framework surgery for unilateral vocal fold paralysis

Objective To evaluate the short- and long-term voice outcomes after unilateral medialization thyroplasty (MT) and unilateral medialization thyroplasty with arytenoid adduction (MT + AA) in patients with unilateral vocal fold paralysis. Methods Voice outcomes were assessed preoperatively, and postoperatively at 3 and 12 months according to a standardized protocol. Voice assessment was performed using Voice Handicap Index (VHI), GRBAS Grade, Maximum Phonation Time (MPT), s/z-ratio and subjective numeric rating scales on voice quality, effort, performance and influence on life. Results Sixty-one patients were included (34 MT and 27 MT + AA). Significant pre- to postoperative improvements were seen in all voice outcome parameters. No significant differences in post-operative values were identified between the groups. Conclusion Based on our findings, we conclude that patients with unilateral vocal fold paralysis who undergo MT and MT + AA achieve comparable and significant long time voice improvement, although voices do not completely normalize. We also conclude that this does not mean that AA is a superfluous procedure, but can indicate the accurate identification of patients in need of the additional AA procedure based on clinical parameters.Otorhinolaryngolog