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Journals / Haseki Tıp Bülteni / 2020 / Cilt: 58 - Sayı: 2

Stimulus Threshold for Providing Intraoperative Motor Evoked Potential

İntraoperatif Motor Uyarılmış Potansiyel Eldesi İçin Uyarı Eşiği

Emine TAŞKIRAN
Dilek AKYÜZ
Pages
118–121
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

In order to elicit muscle MEP, a higher voltage thresholdhad to be implemented for patients who had been given volatileanaesthesia compared to those who had been given totalintravenous anesthesia (TIVA) (Mann-Whitney U test, p

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: Intraoperative neurophysiological monitoring (IOM) hasbeen increasingly used in surgeries associated with a risk ofneurological impairment.
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Key Findings & Data:Our aim was to compare theeffect of anesthetic methods consisting of volatile anestheticsand intravenous anesthetics (propofol + remifentanil) on elicitingof MEP during baseline recordings for spinal surgery which is apart of neurosurgical operations.Methods: Fifty patients (29 males and 21 females; 21 to85 years) who underwent spinal surgery with IOM in ourdepartment between 2016 and 2018 were randomly chosen forretrospective evaluation.
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Conclusion & Impact:In order to elicit muscle MEP, a higher voltage thresholdhad to be implemented for patients who had been given volatileanaesthesia compared to those who had been given totalintravenous anesthesia (TIVA) (Mann-Whitney U test, p
🔬Design:Research Article
📍Scope:2016 Verileri
⚙️Variables:Domain Parameters

Abstract

Aim: Intraoperative neurophysiological monitoring (IOM) hasbeen increasingly used in surgeries associated with a risk ofneurological impairment. Motor evoked potential (MEP), whichis a part of intraoperative neurophysiological tests, evaluatesmotor function intraoperatively. Most anesthetic agents havenegative effect on neurophysiologic recordings because ofneuronal excitability changes. Our aim was to compare theeffect of anesthetic methods consisting of volatile anestheticsand intravenous anesthetics (propofol + remifentanil) on elicitingof MEP during baseline recordings for spinal surgery which is apart of neurosurgical operations.Methods: Fifty patients (29 males and 21 females; 21 to85 years) who underwent spinal surgery with IOM in ourdepartment between 2016 and 2018 were randomly chosen forretrospective evaluation. A multipulse stimulation technique (6-9stimuli) was used for electrical stimulation.Results: There was a statistically significant difference instimulus threshold in voltage stimulation between the twogroups. In order to elicit muscle MEP, a higher voltage thresholdhad to be implemented for patients who had been given volatileanaesthesia compared to those who had been given totalintravenous anesthesia (TIVA) (Mann-Whitney U test, p

Özet

Amaç: İntraoperatif nörofizyolojik monitorizasyon (İOM) nörolojik kötüleşme riski olan cerrahilerde artan sıklıkta kullanılmaktadır. İntraoperatif nörofizyolojik testlerden biri olan motor uyarılmış potansiyeller (MUP) intraoperatif olarak motor fonksiyonları değerlendirir. Birçok anestetik ajan nöronal uyarılabilirliği değiştirdiği için nörofizyolojik kayıtlar üzerine negatif etki gösterir. Amacımız, spinal cerrahide başlangıç kayıtlarda MUP uyarım eşiğine volatil ve intravenöz (propofol + remifentanil) anestezikleri içeren anestezik metodların etkisini değerlendirmektir. Yöntemler: 2016-2018 yılları arasında IOM eşliğinde spinal cerrahi için opere edilen rastgele 50 hasta (29 erkek ve 21 kadın; 21-85 yaş) retrospektif değerlendirme için çalışmaya alındı. Elektriksel uyarım için çoklu uyarım (6-9 uyarım) tekniği kullanıldı. Bulgular: Sabit voltaj uyarımda uyarım eşiği için gruplar arasında istatiksel anlamlı farklılık saptandı. Volatil anestezik ile kas MUP eldesi için gereken uyarım eşiği TIVA grubundan daha yüksekti (Mann-Whitney U testi, p

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Cite This Article

TAŞKIRAN, E., AKYÜZ, D. (2022). Stimulus Threshold for Providing Intraoperative Motor Evoked Potential. Haseki Tıp Bülteni, Cilt: 58 - Sayı: 2, 118–121. https://ajindex.com/articles/535043

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