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The purpose of this study will explore the advantages and applications of electrodes used for monitoring of the recurrent laryngeal nerve (RLN) in thyroid surgery. We want to know that if the monitoring system will decrease the rate of recurrent laryngeal nerve palsy.
One hundred patients who undergoing thyroid surgery will be collected in this study. Patients will be intubated for general anesthesia with a Medtronic Xomed Nerve Integrity Monitor (NIM) EMG endotracheal tube (Jacksonville, Fla) that had 2 electrodes imbedded in the wall of the endotracheal tube. These wires were placed up against each vocal cord. Two grounding wires(needle No. 26) were placed up in the subcutaneous tissues of both shoulders. The electrode wires, grounding wires, and nerve stimulator were connected to a monitoring device (Medtronic NIM-Response) that recoded a visual evoked potential and audible beep to each muscle contraction of a vocal cord. A Medtronic Xomed Prass monopolar nerve stimulator wand was used to test the RLN intraoperatively and was set at 0.5mA. Direct physical touching of the RLN with nerve stimulator using pulsed current would produce an audible "beep-beep-beep".
This study will be conducted in cooperation with Department of anesthesiology. The following subjects will be collected and elucidated:
1. If the muscle relaxant used during surgery will affect the operation of RLN monitoring system.
2. Can RLN monitoring system accurately identify the RLN
3. Can RLN monitoring system accurately predict the function of RLN
4. Can RLN monitoring system decrease the RLN palsy rate after thyroidectomy
At least two papers will be written after this study with the topics as followings:
1. Influence of muscle relaxation on neuromonitoring of the recurrent laryngeal nerve during thyroid surgery
2. Intraoperative neuromonitoring of the recurrent laryngeal nerve during thyroid surgery: Plaudits and pitfalls
Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention
Medtronic Xomed Nerve Integrity Monitor (NIM)
Department of Otolaryngology- Head and Neck Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Taiwan
Kaohsiung Medical University Chung-Ho Memorial Hospital
Published on BioPortfolio: 2014-07-24T14:18:35-0400
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