Key result
Right stellate ganglion block significantly increased QT, RR, QTc intervals and QTD, and decreased PR interval, while left SGB decreased QT and QTc intervals (P<0.05).
Why the study?
Does stellate ganglion block alter PR, RR, and QT intervals in patients with chronic shoulder-hand pain?
Population
28 patients with chronic shoulder-hand pain of at least 6 months duration
Comparison
Right or left stellate ganglion block depending… vs Baseline (before the block)
Design
Cohort
Follow-up
60 minutes
Authors
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Opposing QTc effects by SGB laterality in chronic pain warrant ECG caution in arrhythmia-prone patients; hypothesis-generating and should not yet change practice.
Observational (n=28)
Does stellate ganglion block alter PR, RR, and QT intervals in patients with chronic shoulder-hand pain?
p-value: p=< 0.05
Right and left stellate ganglion blocks have opposing effects on QT and QTc intervals in patients with chronic pain, highlighting potential electrophysiological implications during pain management.
Saxena et al. (2004) conducted an observational in chronic shoulder-hand pain (n=28). Right or left stellate ganglion block vs. Baseline (before block) was evaluated on PR interval, RR interval, QT interval, QTc, QTD, and QTcD (p=< 0.05). Right stellate ganglion block significantly increased QT, RR, QTc intervals and QTD, and decreased PR interval, while left SGB decreased QT and QTc intervals (P<0.05).
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