PMC9170506_01
An electrocardiogram showing first-degree atrioventricular heart block two days following ingestion of a candlenut. Also noted is a characteristic scooping of the ST segment known as the digitalis effect.
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fig1
An electrocardiogram (ECG) was performed and showed a first-degree atrioventricular (AV) heart block with a PR interval of 0.354 seconds and a heart rate of 86 beats per minute (Figure 1).
An electrocardiogram showing third-degree atrioventricular heart block three days following ingestion of a candlenut.
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fig2
A second ECG was performed and noted a new third-degree AV heart block with a ventricular rate of 45 beats per minute (Figure 2).