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Accessory nerve function in lateral selective neck dissection with undissected level IIb.

Ahmet Koybaşioğlu1, Ayşe Bora Tokçaer, Erdoğan Inal

  • 1Department of Otorhinolaryngology, Gazi University School of Medicine, Ankara, Turkey. akoybasi@gazi.edu.tr

ORL; Journal for Oto-Rhino-Laryngology and Its Related Specialties
|February 1, 2006
PubMed
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Lateral selective neck dissection (LSND) without level IIB dissection in laryngeal cancer patients temporarily impacts accessory nerve function. Recovery was observed by 3 months post-surgery, indicating transient functional deterioration.

Area of Science:

  • Head and Neck Surgery
  • Oncology
  • Neurology

Background:

  • Lateral selective neck dissection (LSND) is a surgical approach for laryngeal squamous cell carcinoma.
  • Assessing accessory nerve function is crucial following neck dissections.

Purpose of the Study:

  • To evaluate accessory nerve function after LSND in laryngeal cancer patients.
  • To specifically investigate the impact of preserving level IIB during LSND.

Main Methods:

  • Fifteen LSND procedures were performed in 11 N0 laryngeal carcinoma patients.
  • Accessory nerve function was assessed using distal latencies, compound muscle action potentials (CMAP), and electromyography.
  • Assessments were conducted pre-operatively, at 3 weeks post-op, and 3 months post-op.

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Main Results:

  • A significant decrease in distal latencies and CMAP values was observed post-surgery compared to pre-surgery.
  • Eight patients showed no motor unit potential (MUP) in the early post-operative period.
  • No MUP loss was noted in the late post-operative period (3 months).

Conclusions:

  • LSND performed with preservation of level IIB leads to temporary accessory nerve functional deterioration.
  • Accessory nerve function showed recovery by 3 months post-surgery.