Journals / Türk Göğüs Kalp Damar Cerrahisi Dergisi / 2020 / Cilt: 28 - Sayı: 4

Electrophysiological evaluation of efficacy of clipping in thoracic sympathectomy: An experimental cadaveric study

Torakal sempatektomide klips etkinliğinin elektrofizyolojik değerlendirmesi: Deneysel bir kadavra çalışması

Pages
669–673
Publication Date
2022-09-02
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

However, the short- and long-term postoperative electrophysiological results after removal of the clips over the sympathetic nerve is still a question mark.Keywords:Clipping, electrophysiology, thoracic sympathectomy.

📌 3 Key Takeaways

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Objective & Hypothesis:Background:­This study aims to examine the efficacy of clipping in thoracic sympathectomy based on electrophysiological evaluation and to investigate whether nerve conduction can be formed by collateral nerve extensions as a result of the clipping procedure to different levels of sympathetic nerve.Methods: Newly sacrificed six sheep hemithoraces were studied between August 2016 and October 2016.
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Key Findings & Data:Thoracic sympathectomy was performed by clipping at T2, T3, T4, and T5 sympathetic chain levels and their branches.
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Conclusion & Impact:However, the short- and long-term postoperative electrophysiological results after removal of the clips over the sympathetic nerve is still a question mark.Keywords:Clipping, electrophysiology, thoracic sympathectomy.
🔬Design:Research Article
📍Scope:2016 Verileri
⚙️Variables:Domain Parameters

Abstract

Background:­This study aims to examine the efficacy of clipping in thoracic sympathectomy based on electrophysiological evaluation and to investigate whether nerve conduction can be formed by collateral nerve extensions as a result of the clipping procedure to different levels of sympathetic nerve.Methods: Newly sacrificed six sheep hemithoraces were studied between August 2016 and October 2016. Thoracic sympathectomy was performed by clipping at T2, T3, T4, and T5 sympathetic chain levels and their branches. Electrophysiological studies were performed with an electromyography device and the filter range was 1 Hz with 20 μV/D amplification. Signals were processed digitally; bipolar subdermal needle electrodes were used as stimulation and recording electrodes (Ø 0.75 mm); and the ground electrode was placed in the intercostal muscle where the thoracic sympathectomy procedure would be performed.Results:­Electrophysiological evaluations showed that clips placed on the main sympathetic chain branches and sympathetic nerve trunk prevented collateral impulse conduction and stimulated potentials were not recorded. However, sympathetic conduction continued at the same intensity after removal of the clips.Conclusion:­Clipping of different regions of the sympathetic nerve provides electrophysiological blockage of the sympathetic nerve, and conduction continues after removal of the clips. However, the short- and long-term postoperative electrophysiological results after removal of the clips over the sympathetic nerve is still a question mark.Keywords:Clipping, electrophysiology, thoracic sympathectomy.

Özet

Amaç: Bu çalışmada torakal sempatektomide elektrofizyolojik değerlendirme ile klips etkinliği incelendi ve farklı sempatik sinir düzeylerinde klips uygulanması sonucu sinir iletiminin kollateral sinir uzantıları ile sağlanıp sağlanmayacağı araştırıldı.Ç a ­l ı ş ­m a­ p l a ­n ı :­Ağustos 2016 - Ekim 2016 tarihleri arasında taze sakrifiye edilmiş altı koyun hemitoraksı üzerinde çalışıldı. Torakal sempatektomi T2, T3, T4 ve T5 sempatik zincir seviyeleri ve dallarından klipslenerek yapıldı. Elektrofizyolojik çalışmalar, bir elektromiyografi cihazı ile yapıldı ve 1 Hz, 20 μV/D filtre aralığı kullanıldı. Sinyaller dijital olarak işlendi; stimülatör ve kayıt elektrodu olarak bipolar subdermal iğne elektrotlar (Ø 0.75 mm) kullanıldı ve toprak elektrot torakal sempatektomi işleminin yapılacağı interkostal kas içine yerleştirildi.Bul gu lar: Elektrofizyolojik değerlendirmeler, ana sempatik zincir dalları ve sempatik sinir gövdesi üzerine yerleştirilen klipslerin kollateral uyarı iletimini önlediğini ve uyarılmış potansiyellerin kaydedilmediğini gösterdi. Ancak klipslerin uzaklaştırılmasından sonra sempatik iletim aynı yoğunlukta devam etti.S o ­n u ç :­Sempatik sinire farklı bölgelerden klips uygulanması, sempatik sinirin elektrofizyolojik blokajını sağlar ve klipsler çıkarıldıktan sonra iletim devam eder. Ancak sempatik sinir üzerindeki klipslerin çıkarılmasından sonra kısa ve uzun dönem ameliyat sonrası elektrofizyolojik sonuçlar halen bir soru işaretidir.A n a h ­t a r­ s ö z ­c ü k ­l e r :Klips, elektrofizyoloji, torakal sempatektomi.

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Cite This Article

TAŞKAPILIOĞLU, M. Ö., ACAR, H., SALCI, H., BAYRAM, A. S., MELEK, H. (2022). Electrophysiological evaluation of efficacy of clipping in thoracic sympathectomy: An experimental cadaveric study. Türk Göğüs Kalp Damar Cerrahisi Dergisi, Cilt: 28 - Sayı: 4, 669–673. https://ajindex.com/articles/423623

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