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Intra-aortic balloon ECG artefact
Australian and New Zealand Journal of Medicine
|February 1, 1984
Insights
Intra-aortic balloon pump (IABP) use can cause lead artifact on electrocardiograms (ECGs), mimicking arrhythmias. This case highlights the importance of recognizing lead displacement as a potential source of ECG abnormalities in critically ill cardiac patients.
Area of Science:
- Cardiology
- Medical Devices
- Electrocardiography
Background:
- Intra-aortic balloon pump (IABP) counter pulsation is a critical intervention for acute life-threatening cardiac conditions.
- Patients requiring IABP often present with pre-existing electrocardiogram (ECG) abnormalities and are susceptible to arrhythmias and conduction disturbances.
Observation:
- A specific patient case is presented involving IABP therapy.
- The electrocardiographic lead positioned on the left leg was displaced by the balloon catheter during the procedure.
Findings:
- The movement of the ECG lead created artifactual signals on the electrocardiogram.
- This artifact was misinterpreted as a genuine conduction disturbance and arrhythmia.
Implications:
- Recognizing lead artifact is crucial for accurate ECG interpretation in patients undergoing IABP.
- This phenomenon can lead to misdiagnosis and inappropriate clinical management.
- Ensuring proper lead placement and monitoring for displacement is essential during IABP therapy.
Abstract:
Patients undergoing intra-aortic balloon counter pulsation (IABP) for acute life threatening cardiac disease usually have abnormal electrocardiograms (ECGs) and are prone to arrhythmias and conduction disturbances. We report a patient in whom movement of the electrocardiographic lead to the left leg by the balloon catheter caused artefact simulating a conduction disturbance and arrhythmia.