Related Experiment Video
Updated: Aug 17, 2026

Implantation of Total Artificial Heart in Congenital Heart Disease
Published on: July 18, 2014
[Ventricular tachycardia and cardiac hemochromatosis]
J Luis Moríñigo1, C Martín Luengo, C Ledesma
1Servicio de Cardiología, Hospital Universitario, Salamanca. jlmori@eresmas.com
Insights
Hemochromatosis causes iron overload, leading to heart problems like arrhythmias and heart failure. This case highlights cardiac issues in secondary hemochromatosis, emphasizing the need for early diagnosis and management.
Area of Science:
- Cardiology
- Hematology
- Genetics
Background:
- Hemochromatosis involves excessive iron deposition, potentially affecting the heart in one-third of patients.
- Cardiac complications arise from ferritin accumulation, impairing ventricular function and creating an arrhythmogenic substrate.
Observation:
- Clinical manifestations include atrial and ventricular tachyarrhythmias, heart block, and heart failure.
- Atrial tachyarrhythmia is the most frequent cardiac manifestation in hemochromatosis patients.
Findings:
- This case details a patient with secondary hemochromatosis due to sideroblastic anemia and transfusions.
- The patient presented with recurrent atrial tachyarrhythmia and sustained ventricular tachycardia, leading to syncope.
Implications:
- The case underscores the significant cardiac involvement in secondary hemochromatosis.
- Implantation of an automatic defibrillator was necessary due to life-threatening ventricular arrhythmias.
Abstract:
Hemochromatosis is characterized by an excessive iron deposit in different tissues. Cardiac involvement may be observed in one third of the patients due to hemochromatosis and occurs as a consequence of ferritin accumulation in the heart which on one hand induces alterations in systolic and diastolic ventricular function and on the other hand, an arrythmogenic substrate. The clinical manifestations can be indistinctly related to atrial tachyarrhythmia, ventricular tachyarrhythmia, atrio-ventricular blockade and congestive heart failure, with the first being the most frequent. We present the case of one patient with secondary hemochromatosis to repeated transfusions due to sideroblastic anemia with cardiac involvement, whose initial heart manifestations were recurrent atrial tachyarrhythmia and sustained ventricular tachycardia with syncope for which an automatic defibrillator was implanted.
Related Concept Videos
Increased pulse rate
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
Mechanism of Cardiac Arrhythmias
Dysrhythmias II: Classification of Tachyarrhythmias
Dysrhythmias III: Characteristics of Dysrhythmias
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy III: Hypertrophic Cardiomyopathy

