A new vagal anchor electrode for real-time monitoring of the recurrent laryngeal nerve.

Abstract:

BACKGROUND:Despite conventional neuromonitoring, the recurrent laryngeal nerve (RLN) is still at risk for damage during thyroid surgery. The feasibility of continuous RLN monitoring by vagal nerve (VN) stimulation with a new anchor electrode should be shown, and electromyographic signal alterations of stressed RLN were analyzed to be alerted to imminent nerve failure whereby the nerve damage becomes reversible. METHODS:VN stimulation was achieved in 23 pigs. Sensed signals were analyzed and stored as real-time audio/video feedback EMG system. RLN was stressed by mechanical and thermal injury; signal alterations were evaluated. RESULTS:VNs were successfully real-time stimulated by using the anchor electrode. No complications or side effects during stimulation were detected. RLN injury led to an alteration of signal amplitude and latency period but signal restitution after injury. CONCLUSIONS:Real-time monitoring of the RLN is technically feasible to perceive imminent nerve failure. The anchor electrode was safely and easy to handle. Its implementation is being tested in an ongoing clinical trial.

journal_name

Am J Surg

authors

Schneider R,Przybyl J,Pliquett U,Hermann M,Wehner M,Pietsch UC,König F,Hauss J,Jonas S,Leinung S

doi

10.1016/j.amjsurg.2009.04.036

subject

Has Abstract

pub_date

2010-04-01 00:00:00

pages

507-14

issue

4

eissn

0002-9610

issn

1879-1883

pii

S0002-9610(09)00625-4

journal_volume

199

pub_type

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