Reversible complete atrioventricular block due to malignant lymphoma
Y Otsuji1, N Arima, H Fujiwara
1First Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Japan.
Malignant lymphoma can cause complete atrioventricular (AV) block. Chemotherapy effectively treated this cardiac complication, resolving the AV block in an elderly patient.
Area of Science:
- Cardiology
- Oncology
- Medical Oncology
Background:
- Malignant lymphoma can infiltrate the heart, leading to cardiac complications.
- Atrioventricular (AV) block is a potential manifestation of cardiac involvement in lymphoma.
Observation:
- An 83-year-old male presented with fatigue and dyspnea.
- Cardiac evaluation revealed complete atrioventricular (AV) block.
Findings:
- The patient was diagnosed with complete AV block secondary to cardiac infiltration by malignant lymphoma.
- Following eleven days of chemotherapy, the complete AV block resolved, with only a first-degree AV block persisting.
Implications:
- This case highlights the reversible nature of chemotherapy-responsive cardiac dysfunction in malignant lymphoma.
- Early diagnosis and treatment of lymphoma-related cardiac involvement can lead to significant clinical improvement.
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