Journals / Türk Anestezi ve Reanimasyon Dergisi / 2005 / Cilt: 33 - Sayı: 2

Effects of different currents and local anaesthetic volumes in axillary block

Aksiller blokta farklı stimülasyon akım değerleri ve lokal anestezik volümlerinin blok oluşumuna etkileri

Pages
151–157
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

The solutions containing 0.5 % bupivacaine (20 mL) + 2 % lidocaine (10 mL) + 10 mL normal saline were administered in a total volume of 40 mL in groups 1 and 2; and 30 mL in groups 3 and 4. haemodynamic effects, VAS values time to performe regional block, block success rate and side effects were recorded.Results: No differences were found for demographic data, surgical characteristics, VAS values, time to perform regional block, block success rates or side effects between groups (p>0.05).Conclusion: We concluded that locating the nerves with a current smaller than 0.5 mA has no significant advantage and does not effect the volume of the local anaesthetic required for success.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: We aimed to determine whether peripheral nerve stimulation-assisted location of nerves with currents under 0.5 mA is associated with increased block success rate and decreased local anaesthetic volume when performing axillary blocks.Materials and Methods: After obtaining ethics committee approval, 80 ASA I-II patients receiving axillary blocks were randomised into 4 groups.
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Key Findings & Data:Nerves were located with a current >0.5 mA in groups 1 and 3, and with ?0.3 mA in groups 2 and 4.
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Conclusion & Impact:The solutions containing 0.5 % bupivacaine (20 mL) + 2 % lidocaine (10 mL) + 10 mL normal saline were administered in a total volume of 40 mL in groups 1 and 2; and 30 mL in groups 3 and 4. haemodynamic effects, VAS values time to performe regional block, block success rate and side effects were recorded.Results: No differences were found for demographic data, surgical characteristics, VAS values, time to perform regional block, block success rates or side effects between groups (p>0.05).Conclusion: We concluded that locating the nerves with a current smaller than 0.5 mA has no significant advantage and does not effect the volume of the local anaesthetic required for success.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Aim: We aimed to determine whether peripheral nerve stimulation-assisted location of nerves with currents under 0.5 mA is associated with increased block success rate and decreased local anaesthetic volume when performing axillary blocks.Materials and Methods: After obtaining ethics committee approval, 80 ASA I-II patients receiving axillary blocks were randomised into 4 groups. Nerves were located with a current >0.5 mA in groups 1 and 3, and with ?0.3 mA in groups 2 and 4. The solutions containing 0.5 % bupivacaine (20 mL) + 2 % lidocaine (10 mL) + 10 mL normal saline were administered in a total volume of 40 mL in groups 1 and 2; and 30 mL in groups 3 and 4. haemodynamic effects, VAS values time to performe regional block, block success rate and side effects were recorded.Results: No differences were found for demographic data, surgical characteristics, VAS values, time to perform regional block, block success rates or side effects between groups (p>0.05).Conclusion: We concluded that locating the nerves with a current smaller than 0.5 mA has no significant advantage and does not effect the volume of the local anaesthetic required for success.

Özet

Amaç: Aksiller blokta, periferik sinir stimülatörü ile 0.5 mA'in altında sinir lokalizasyonunun blok başarı oranını artırıp artırmadığı ve kullanılan lokal anestezik solüsyonun volümünün azaltılmasına katkı sağlayıp sağlayamayacağının araştırılması amaçlandı.Gereç ve Yöntem: Etik kurul izni alındıktan sonra, ASA I-II grubundan aksiller blok uygulanan 80 hasta rastgele 4 gruba ayrıldı.Grup 1 ve grup 3'de minimum 0.5 mA akımda, grup 2 ve grup 4'de minimum 0.3 mA akımda sinir lokalizasyonu yapıldı. Daha sonra; % 0.5'lik bupivakainden (20 mL) + % 2'lik lidokainden (10 mL)+ 10 mL serum fizyolojik olarak hazırlanmış solusyondan, grup 1 ve 2'de 40 mL, grup 3 ve grup 4'de 30 mL enjekte edildi. Olguların hemodinamik verileri, VAS değerleri, blok uygulama ve primer blok oluşma zamanları, blok başarı oranları ve yan etkiler kaydedildi.Bulgular: Gruplar arası demografik veriler, cerrahi özellikler, VAS, blok uygulama ve primer blok oluşma zamanı, blok başarı oranları, yan etki görülme sıklığı bakımından anlamlı bir fark bulunmadı (p>0.05).Sonuç: 0.5 mA'den düşük akımlar ile periferik sinirlerin lokalize edilmesinin başarı oranını ve gereken lokal anestezik volümünü etkilemediği sonucuna varılmıştır.

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Cite This Article

KARAAĞAÇLI, D. M., YILMAZLAR, A. (2022). Effects of different currents and local anaesthetic volumes in axillary block. Türk Anestezi ve Reanimasyon Dergisi, Cilt: 33 - Sayı: 2, 151–157. https://ajindex.com/articles/620122

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