Conservation laryngeal surgery. A critical analysis.

Area of Science:

• Otolaryngology
• Surgical Oncology
• Laryngeal Cancer Research

Background:

• Laryngeal cancer treatment involves various modalities, including radiation and surgery.
• Conservation surgery aims to preserve laryngeal functions like voice and swallowing.
• Evaluating survival outcomes and morbidity associated with different surgical approaches is crucial.

Purpose of the Study:

• To analyze the outcomes of laryngeal cancer treatment at the University of Michigan.
• To compare the efficacy of primary irradiation, vertical hemilaryngectomy, supraglottic laryngectomy, and total laryngectomy for glottic and supraglottic cancers.
• To assess the survival rates and associated morbidity of conservation surgery for laryngeal cancer.

Main Methods:

• Retrospective review of 342 laryngeal cancer cases.
• In-depth analysis of 110 supraglottic and 150 glottic cancer cases.
• Evaluation of treatment outcomes for primary irradiation, vertical hemilaryngectomy, supraglottic laryngectomy, and total laryngectomy.

Main Results:

• Two-year determinate survival for glottic cancer: 90% (primary irradiation), 83% (vertical hemilaryngectomy), 58% (total laryngectomy).
• Two-year determinate survival for supraglottic cancer: 62% (primary irradiation), 80% (supraglottic laryngectomy), 62% (total laryngectomy).
• Conservation surgery for laryngeal cancer showed high recurrence rates (30-40%) but acceptable overall determinate survival (80%) with salvage.

Conclusions:

• Conservation surgery for laryngeal cancer can achieve acceptable survival rates, especially supraglottic laryngectomy for supraglottic cancers.
• While preserving laryngeal functions, conservation surgery may lead to morbidity, including swallowing difficulties and potential need for tracheostomy.
• Despite recurrence risks, salvage options contribute to favorable overall survival in laryngeal cancer patients undergoing conservation surgery.