Descriptive in Vivo Study of Evaluating the Motor Function of Recurrent Laryngeal Nerve's Extralaryngeal Branching Electromyographically.
Overview
- Phase
- N/A
- Intervention
- Not specified
- Conditions
- Recurrent Laryngeal Nerve Injuries
- Sponsor
- Sisli Hamidiye Etfal Training and Research Hospital
- Enrollment
- 337
- Primary Endpoint
- The evoked EMG potentials of the branches of the recurrent laryngeal nerves as microvolt, by intraoperative neuromonitoring.
- Status
- Completed
- Last Updated
- 10 years ago
Overview
Brief Summary
The investigators hypothesized that, sometimes the posterior branch of the recurrent laryngeal nerve may also have motor function. The investigators aimed to evaluate motor function of the branches in the branching recurrent laryngeal nerves in this study.
Detailed Description
This study group consisted of consecutive patients, undergoing thyroid and parathyroid surgery with IONM. Both anterior and posterior branches of the recurrent laryngeal nerves were assessed separately by both electromyography endotracheal tube for adduction and finger palpation for detection of laryngeal twitch due to posterior cricoarytenoid abduction. The recurrent laryngeal nerves having motor function only in the anterior branches were defined as group 1, whereas the nerves having motor function both in the anterior and posterior branches were as group 2.
Investigators
Mehmet Uludag
Associated Professor
Sisli Hamidiye Etfal Training and Research Hospital
Eligibility Criteria
Inclusion Criteria
- •Patients who underwent parathyroid/thyroid surgery with intraoperative neuromonitoring ,
- •Patients who had normal vocal cord functions preoperatively. -
Exclusion Criteria
- •Preoperative recurrent laryngeal nerve palsy,
- •Intentional nerve transection because of cancer invasion,
- •Assessment failure of recurrent laryngeal nerve function due to the deficiency of the intraoperative neuromonitoring equipment,.
- •Parathyroidectomy operations that recurrent laryngeal nerves were not fully dissected.
Outcomes
Primary Outcomes
The evoked EMG potentials of the branches of the recurrent laryngeal nerves as microvolt, by intraoperative neuromonitoring.
Time Frame: intraoperative
The nerves , due to having motor functions whether on their anterior or posterior branches, were divided into two groups. The amplitudes of the anterior and posterior branches within the group 2 were compared.
Secondary Outcomes
- The diameters of the branches of the recurrent laryngeal nerves.(intraoperative)
- The branching distances of the recurrent laryngeal nerves.(intraoperative)