Why the study?
Does right and left stellate ganglion block affect blood pressure and QT-QTc intervals in patients with primary Raynaud's phenomenon?
Population
10 patients with primary Raynaud's phenomenon, ASA status I or II, aged 20 to 60 years, weighing between 50…
Comparison
Right and left stellate ganglion block performed… vs Preblock baseline values.
Design
RCT, Randomly, using computer-generated random numbers, patients received…
Follow-up
30 minutes post-block
Authors
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Right SGB warrants QT monitoring for arrhythmia risk; extends evidence of lateralized autonomic effects on repolarization.
Does right and left stellate ganglion block affect blood pressure and QT-QTc intervals in patients with primary Raynaud's phenomenon?
Right stellate ganglion block prolongs RR and QT intervals, whereas left block shortens QT and QTc intervals in patients with primary Raynaud's phenomenon, highlighting a potential risk for arrhythmias with right-sided blocks.
Takmaz et al. (2012) studied this question.
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