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Hemodynamic stability during laryngeal electromyography procedures.

Yi-An Lu1, Yu-Cheng Pei2,3,4, Alice Mk Wong2,3

  • 1a Department of Otolaryngology , Chang Gung Memorial Hospital at Linkou , Taoyuan , Taiwan.

Acta Oto-Laryngologica
|June 24, 2017
PubMed
Summary
This summary is machine-generated.

Laryngeal electromyography (LEMG) is safe, but can increase diastolic blood pressure and pulse rate. Hemodynamic monitoring is recommended during LEMG to manage potential patient instability.

Keywords:
Laryngeal electromyographyhemodynamichypertensionmonitoringsyncope

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Area of Science:

  • Otolaryngology
  • Neurology
  • Anesthesiology

Background:

  • Laryngeal electromyography (LEMG) is a widely accepted diagnostic procedure.
  • Patient hemodynamic stability during LEMG has not been extensively reported.
  • Understanding hemodynamic responses is crucial for patient safety.

Purpose of the Study:

  • To investigate hemodynamic changes in patients undergoing LEMG.
  • To identify potential risk factors associated with these hemodynamic alterations.
  • To assess the safety profile of LEMG concerning cardiovascular stability.

Main Methods:

  • Prospective recruitment of 89 consecutive patients undergoing LEMG.
  • Systematic monitoring and analysis of vital signs (blood pressure, pulse rate, oxygen saturation) pre- and post-procedure.
  • Evaluation of hemodynamic changes in relation to patient demographics and etiology of vocal fold paralysis.

Main Results:

  • A statistically significant increase in diastolic blood pressure (DBP) and pulse rate (PR) was observed post-LEMG.
  • Systolic blood pressure (SBP) and oxygen saturation remained stable.
  • Approximately 17% of patients experienced significant vital sign fluctuations (>20% above baseline), with two cases of reversible near-syncope.

Conclusions:

  • LEMG is generally safe with minimal immediate complications.
  • LEMG can induce transient hemodynamic changes, specifically increasing DBP and PR.
  • Continuous hemodynamic monitoring during LEMG is advisable for prompt management of adverse events.