Key result
Thoracic epidural anaesthesia significantly shortened the QTcb interval and transmural dispersion of repolarization, whereas lumbar epidural anaesthesia produced no changes.
Why the study?
Does thoracic epidural anaesthesia improve cardiac repolarization parameters in men compared to lumbar epidural anaesthesia?
Population
52 men, aged between 28 and 65 years, scheduled for either thoracic or lumbar epidural anaesthesia.
Comparison
Thoracic epidural anaesthesia with 0.5% isobaric… vs Lumbar epidural anaesthesia with 0.5% isobaric…
Design
Cohort
Follow-up
Immediate (after detection of sensory block)
Authors
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May suggest anti-arrhythmic potential via thoracic sympathetic blockade; hypothesis-generating and should not yet change practice.
Observational (n=52)
Does thoracic epidural anaesthesia improve cardiac repolarization parameters in men compared to lumbar epidural anaesthesia?
Thoracic epidural anaesthesia shortens the QT interval and transmural dispersion of repolarization, potentially offering an anti-arrhythmic effect through sympathetic blockade.
Owczuk et al. (2009) conducted an observational in Scheduled for epidural anaesthesia (n=52). Thoracic epidural anaesthesia vs. Lumbar epidural anaesthesia was evaluated on Cardiac repolarization (QT interval and transmural dispersion of repolarization). Thoracic epidural anaesthesia significantly shortened the QTcb interval and transmural dispersion of repolarization, whereas lumbar epidural anaesthesia produced no changes.
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