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[Non-recurrent laryngeal nerve].

J Dvorák1, S Kubín, J Hofmann

  • 1Chirurgické oddĕlení nemocnice Karlovy Vary.

Rozhledy V Chirurgii : Mesicnik Ceskoslovenske Chirurgicke Spolecnosti
|April 17, 2004
PubMed
Summary
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Rare anatomical variations of the recurrent laryngeal nerve (RLN) are crucial for safe thyroidectomy. Careful surgical dissection is essential to prevent nerve damage and potential paralysis.

Area of Science:

  • Anatomy
  • Surgical Procedures
  • Endocrinology

Context:

  • Thyroidectomy carries risks of recurrent laryngeal nerve (RLN) injury.
  • Anatomical variations of the RLN, though rare, can complicate surgical procedures.
  • Accurate identification and preservation of the RLN are paramount for preventing vocal cord dysfunction.

Purpose:

  • To highlight the significance of rare anatomical variations of the recurrent laryngeal nerve (RLN), specifically the non-recurrent laryngeal nerve (NRLN).
  • To discuss surgical strategies for minimizing nerve damage during thyroidectomy in the presence of these variations.
  • To emphasize the importance of meticulous dissection and intraoperative vigilance.

Summary:

  • This study reports on three cases (0.25%) of anatomical variations of the RLN, termed nervus laryngeus non-recurrens, identified during 1,200 thyroidectomies.

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  • While two patients had the nerve successfully preserved, one experienced permanent unilateral vocal cord paralysis due to misidentification.
  • The findings underscore the necessity of routine anatomical assessment and careful surgical technique during thyroidectomy.

    • Impact:

    • Improved surgical safety during thyroidectomy by increasing awareness of rare RLN variations.
    • Reduced incidence of iatrogenic vocal cord paralysis following thyroid surgery.
    • Enhanced understanding of anatomical anomalies and their implications for surgical outcomes.