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Low-Current Stimulation for Recurrent Laryngeal Nerve Protection During Thyroid Surgery

10 juli 2026 uppdaterad av: Siqi Li, The Second Affiliated Hospital of Kunming Medical University

Clinical Utility of Low-Current Stimulation for Recurrent Laryngeal Nerve Protection During Thyroid Surgery: A Single-Center Prospective Randomized Interventional Study

This single-center prospective randomized interventional study evaluated whether intraoperative low-current stimulation could assist recurrent laryngeal nerve localization and reduce temporary recurrent laryngeal nerve injury during thyroid surgery.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

A total of 150 patients undergoing thyroid surgery at the Second Affiliated Hospital of Kunming Medical University were randomly allocated in a 1:1:1 ratio to conventional anatomical identification, 3 mA low-current stimulation, or 5 mA low-current stimulation. All participants underwent preoperative and postoperative electronic laryngoscopy. The primary outcome was temporary recurrent laryngeal nerve injury. Secondary outcomes included permanent recurrent laryngeal nerve injury, operative duration, intraoperative blood loss, postoperative hospital stay, and stimulation-related adverse events.

Studietyp

Interventionell

Inskrivning (Faktisk)

150

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Kina
    • Yunnan
      • Kunming, Yunnan, Kina, 650000
        • The Second Affiliated Hospital of Kunming Medical University

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  • Patients scheduled for thyroid surgery.
  • No history of prior thyroid or neck surgery.
  • Normal bilateral vocal cord mobility on preoperative electronic laryngoscopy.
  • Written informed consent provided before enrollment.

Exclusion Criteria:

  • Preoperative recurrent laryngeal nerve dysfunction.
  • Previous neck surgery.
  • Incomplete clinical data.
  • Severe comorbidities precluding standardized perioperative assessment.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Inget ingripande: Control group
Participants underwent conventional anatomical identification and preservation of the recurrent laryngeal nerve during thyroid surgery.
Experimentell: 3 mA group
Participants underwent 3 mA low-current stimulation-assisted recurrent laryngeal nerve identification in addition to conventional anatomical identification.
Procedur: 3 mA low-current stimulation-assisted recurrent laryngeal nerve identification
Low-current stimulation at 3 mA was used as an adjunct to anatomical recurrent laryngeal nerve identification. Response was judged according to visible or palpable laryngeal twitch.
Experimentell: 5 mA group
Participants underwent 5 mA low-current stimulation-assisted recurrent laryngeal nerve identification in addition to conventional anatomical identification.
Procedur: 5 mA low-current stimulation-assisted recurrent laryngeal nerve identification
Low-current stimulation at 5 mA was used as an adjunct to anatomical recurrent laryngeal nerve identification. Response was judged according to visible or palpable laryngeal twitch.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Number of Participants With Permanent Recurrent Laryngeal Nerve Injury Confirmed by Electronic Laryngoscopy
Tidsram: 6 months after surgery
Permanent recurrent laryngeal nerve injury is defined as unilateral or bilateral vocal cord paresis or paralysis detected after surgery and still present at the 6-month postoperative assessment, as confirmed by electronic laryngoscopy. The number of participants meeting this definition will be reported.
6 months after surgery

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Number of Participants With Vocal Cord Paresis or Paralysis Persisting at 6 Months, as Assessed by Electronic Laryngoscopy
Tidsram: 6 months after surgery
Permanent recurrent laryngeal nerve injury is defined as unilateral or bilateral vocal cord paresis or paralysis detected after surgery and still present at the 6-month postoperative assessment, as confirmed by electronic laryngoscopy. The number of participants meeting this definition will be reported.
6 months after surgery
Total Operative Duration in Minutes
Tidsram: Intraoperative period
Total operative duration will be measured in minutes from the initial skin incision to completion of skin closure.
Intraoperative period
Intraoperative blood loss
Tidsram: Intraoperative period
Estimated intraoperative blood loss measured in milliliters.
Intraoperative period
Duration of Postoperative Hospital Stay in Days
Tidsram: From the date of surgery until hospital discharge, assessed up to 30 days after surgery
Postoperative hospital stay will be calculated as the number of calendar days from the date of surgery to the date of hospital discharge.
From the date of surgery until hospital discharge, assessed up to 30 days after surgery
Number of Participants With Stimulation-Related Adverse Events
Tidsram: From initiation of intraoperative nerve stimulation through 30 days after surgery
The number of participants experiencing at least one stimulation-related adverse event will be reported. Stimulation-related adverse events include suspected thermal injury, arrhythmia, hemodynamic instability, muscle burn, overstimulation, or suspected false-negative nerve localization, as documented in the intraoperative and postoperative medical records.
From initiation of intraoperative nerve stimulation through 30 days after surgery

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

The Second Affiliated Hospital of Kunming Medical University

Utredare

  • Huvudutredare: Siqi Li, The Second Affiliated Hospital of Kunming Medical University

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

1 juni 2024

Primärt slutförande (Faktisk)

1 mars 2025

Avslutad studie (Faktisk)

1 mars 2025

Studieregistreringsdatum

Först inskickad

26 juni 2026

Först inskickad som uppfyllde QC-kriterierna

10 juli 2026

Första postat (Faktisk)

16 juli 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

16 juli 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

10 juli 2026

Senast verifierad

1 juli 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • RLN-LCS-2024-001

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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