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Journals / Turkish Journal of Medical Sciences / 2012 / Cilt: 42 - Sayı: 1

Effects of right and left stellate ganglion block on blood pressure and QT-QTc intervals in patients with primary Raynaud's phenomenon

Suna Akin TAKMAZ
Hale Yarkan UYSAL
Nurten İNAN
Zekeriya KAPTAN
Hülya BAŞAR
Pages
89–94
Publication Date
2012-01-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Precautions must be taken, taking into account the risk of fatal arrhythmia following right SGB.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:To examine the effects of right and left stellate ganglion block (SGB) on blood pressure and the RR, QT, and QTc intervals in patients with primary Raynaud's phenomenon.
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Key Findings & Data:Materials and methods: Right and left SGBs were performed with 8 mL of 0.5% bupivacaine in 10 patients with primary Raynaud's phenomenon.
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Conclusion & Impact:Precautions must be taken, taking into account the risk of fatal arrhythmia following right SGB.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Key words: Stellate ganglion block · QT interval · Raynaud's phenomenon

Abstract

To examine the effects of right and left stellate ganglion block (SGB) on blood pressure and the RR, QT, and QTc intervals in patients with primary Raynaud's phenomenon. Materials and methods: Right and left SGBs were performed with 8 mL of 0.5% bupivacaine in 10 patients with primary Raynaud's phenomenon. There was an interval of at least 1 week between the right and left blocks of each patient. The blood pressure and the RR and QT intervals were measured before the block and 5, 10, 15, 20, and 30 min after the block. The QTc interval was calculated using Bazett's formula. Results: The RR and QT intervals were longer 20 and 30 min after right SGB when compared with the preblock value (P = 0.037 for RR and P = 0.008 for QT). The QT and QTc intervals 20 and 30 min after left SGB were shorter than the preblock values (P = 0.011, P = 0.012 for QT; P = 0.013, P = 0.009 for QTc). Conclusion: We conclude that right SGB prolongs the RR and QT intervals while left SGB shortens the QT and QTc intervals in patients with primary Raynaud's phenomenon. Precautions must be taken, taking into account the risk of fatal arrhythmia following right SGB.

Özet

To examine the effects of right and left stellate ganglion block (SGB) on blood pressure and the RR, QT, and QTc intervals in patients with primary Raynaud's phenomenon. Materials and methods: Right and left SGBs were performed with 8 mL of 0.5% bupivacaine in 10 patients with primary Raynaud's phenomenon. There was an interval of at least 1 week between the right and left blocks of each patient. The blood pressure and the RR and QT intervals were measured before the block and 5, 10, 15, 20, and 30 min after the block. The QTc interval was calculated using Bazett's formula. Results: The RR and QT intervals were longer 20 and 30 min after right SGB when compared with the preblock value (P = 0.037 for RR and P = 0.008 for QT). The QT and QTc intervals 20 and 30 min after left SGB were shorter than the preblock values (P = 0.011, P = 0.012 for QT; P = 0.013, P = 0.009 for QTc). Conclusion: We conclude that right SGB prolongs the RR and QT intervals while left SGB shortens the QT and QTc intervals in patients with primary Raynaud's phenomenon. Precautions must be taken, taking into account the risk of fatal arrhythmia following right SGB.

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Cite This Article

TAKMAZ, S. A., UYSAL, H. Y., İNAN, N., KAPTAN, Z., BAŞAR, H. (2012). Effects of right and left stellate ganglion block on blood pressure and QT-QTc intervals in patients with primary Raynaud's phenomenon. Turkish Journal of Medical Sciences, Cilt: 42 - Sayı: 1, 89–94. https://ajindex.com/articles/723513

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