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Paraglottic space in supracricoid laryngectomy
Min-Sik Kim1, Dong-Il Sun, Kyung-Ho Park
1Department of Otolaryngology-Head and Neck Surgery, Kangnam St Mary's Hospital, The Catholic University of Korea, Seoul, Korea 137-040. entkms@cmc.cuk.ac.kr
Archives of Otolaryngology--Head & Neck Surgery
|March 12, 2002
Summary
Supracricoid partial laryngectomy effectively resects paraglottic space (PGS) tumors in laryngeal cancer. This technique achieved complete resection margins, indicating its safety for specific laryngeal cancer cases.
Area of Science:
- Otolaryngology
- Surgical Oncology
- Laryngeal Cancer Research
Background:
- The paraglottic space (PGS) is a critical laryngeal compartment involved in the spread of laryngeal cancer.
- Transglottic cancers invading the PGS often present with laryngeal skeleton invasion and cervical metastasis, complicating staging and treatment.
- Accurate staging is challenging, potentially leading to treatment failures with partial laryngectomy.
Purpose of the Study:
- To confirm the pathological complete resection of the paraglottic space (PGS) via supracricoid partial laryngectomy.
- To evaluate the safety and efficacy of this surgical approach in laryngeal cancers involving the PGS.
Main Methods:
- Eight patients with advanced transglottic laryngeal cancer (T2b or higher) underwent supracricoid partial laryngectomy.
- The procedure involved sharp dissection of the PGS from the piriform sinus mucosa to ensure complete resection.
- Microscopic examination assessed PGS invasion and the margin distance from the piriform sinus mucosa.
Main Results:
- Pathological invasion of the PGS was confirmed in 7 out of 8 patients.
- Sufficient pathological resection margins were achieved in all cases.
- The average safety margin from tumor invasion to the piriform sinus mucosa was 10.3 mm.
Conclusions:
- Supracricoid partial laryngectomy is a viable surgical option for laryngeal cancers involving the paraglottic space.
- The technique allows for complete resection with adequate margins, supporting its consideration in managing these complex cases.