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[Immunoadsorption in a patient with dilated cardiomyopathy. The first case in Hungary]
Pál Soltész1, Melinda Vass1, Ágnes Diószegi1
1Belgyógyászati Intézet, Belgyógyászati Angiológiai Nem Önálló Tanszék, Debreceni Egyetem, Általános Orvostudományi Kar Debrecen, Móricz Zs. krt. 22., 4032.
Insights
Immunoadsorption therapy shows promise for treating dilated cardiomyopathy (DCM) by removing cardiac-specific antibodies. This treatment improved cardiac function and survival in a heart transplant candidate.
Area of Science:
- Cardiology
- Immunology
- Internal Medicine
Background:
- Dilated cardiomyopathy (DCM) is a leading cause of heart transplantation, often with unknown etiology.
- Cardiac-specific antibodies are implicated in decreased cardiac function, ventricular tachycardia, and sudden cardiac death.
- Prognosis for DCM remains poor despite advancements in medical treatment.
Observation:
- A 43-year-old male patient with idiopathic DCM (NYHA class IV) and identified cardiac-specific IgG antibodies was treated with immunoadsorption.
- The patient had a baseline ejection fraction of 18% and was a candidate for heart transplantation.
- Immunoadsorption therapy involved 5 cycles performed over consecutive days.
Findings:
- Following treatment, the patient showed improved exercise capacity after 1 month.
- Hemodynamic improvements included increased isovolemic contraction (465 to 575 mmHg/s) and stroke volume (49 to 66 ml).
- After 3 months, SPECT imaging revealed a significant increase in ejection fraction from 18% to 32%.
Implications:
- Immunoadsorption therapy can improve cardiac function and clinical status in patients with DCM.
- This apheresis technique offers a potential strategy to prolong LVAD/heart transplantation-free survival.
- Further research into immunoadsorption for antibody-mediated DCM is warranted.
Abstract:
Dilated cardiomyopathy is the main cause of heart transplantation. The etiology is unknown in almost half of the cases. Many cardiac specific antibodies have been identified till now which can cause decreased cardiac function, ventricular tachycardia or sudden heart death. The prognosis of DCM is poor despite the development of medical treatment. Immunoadsorption is hopeful since, with the removal of antibodies, cardiac function and NYHA class can improve and LVAD/heart transplantation-free survival can be prolonged. At the University of Debrecen, Faculty of Medicine, Department of Internal Medicine, Division of Angiology, Intensive Care and Therapeutic Apheresis Unit we performed the first immunoadsorption. Our patient was a 43-year-old man with idiopathic dilated cardiomyopathy, NYHA class IV, a heart transplantation candidate, whose cardiac specific antibody, type IgG was indentified by Western blot. Before the treatment he had ejection fraction of 18%. Discussing with his cardiologists we decided for immunoadsorption therapy. We performed 5 cycles on consecutive days in Intensive Care Unit. After 1 month we detected improvement in exercise capacity. We detected improvement in isovolemic contraction (from 465 mmHg/s to 575 mmHg/s), increased stroke volume (from 49 ml to 66 ml). After 3 months we repeated SPECT investigation which showed improvement in ejection fraction, from 18% to 32%. Orv Hetil. 2018; 159(13): 532-536.
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