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Intermittent left bundle branch block revealed during anaesthesia
H Reyford1, P de Groote, T Guermouche
1Department of Anesthesia 1, Hospital B, University of Lille, France.
Insights
Intermittent left bundle branch block is a rare condition that can complicate anesthesia and mask heart problems. Post-operative investigations in this case did not reveal an organic cause for the intermittent left bundle branch block.
Area of Science:
- Cardiology
- Anesthesiology
Background:
- Intermittent left bundle branch block (iLBBB) is an uncommon cardiac finding.
- iLBBB during anesthesia can be associated with hypertension or tachycardia.
- The presence of iLBBB complicates the diagnosis of acute myocardial ischemia or infarction.
Abstract:
Intermittent left bundle branch block is uncommon. During anaesthesia,, left bundle branch block may be related to hypertension or tachycardia and its occurrence makes the diagnosis of acute myocardial ischaemia or infarction difficult. Patients with intermittent left bundle branch block often develop established left bundle branch block, which may represent an earlier state of ischaemic heart disease. Cardiological investigation of our patient after operation did not point towards an organic cause of intermittent left bundle branch block.