Related Experiment Videos
[ECG changes and angina pectoris due to direct current from a defective cardiac pacemaker]
Zeitschrift Fur Kardiologie
|September 1, 1983
Summary
A malfunctioning cardiac pacemaker caused severe angina and ECG abnormalities in a patient. Replacing the device resolved both the chest pain and the dangerous electrocardiogram changes.
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- External cardiac pacemakers are crucial for managing bradyarrhythmias.
- Direct current (DC) electrical output from pacemakers is uncommon and potentially hazardous.
Observation:
- A 73-year-old patient presented with severe angina pectoris.
- Electrocardiogram (ECG) revealed significant QT prolongation and complex waveform distortions.
Findings:
- The patient's symptoms and ECG abnormalities were directly linked to a defective pacemaker emitting constant direct current.
- Resolution of angina and normalization of ECG parameters occurred post-pacemaker replacement.
Implications:
- Highlights the critical importance of regular pacemaker function assessment.
- Underscores the potential for device malfunction to cause serious cardiac events.
- Emphasizes the need for prompt diagnosis and intervention in pacemaker-related complications.