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Iranian Heart Journal، جلد ۲۳، شماره ۴، صفحات ۶۰-۶۸
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عنوان انگلیسی Evaluation of Different Arrhythmias and Cardiac Iron Overload Status in β-Thalassemia Major: A Cross-Sectional Study
چکیده انگلیسی مقاله Background: Cardiac involvement due to iron deposition in β-thalassemia major remains the main cause of mortality. We assessed the effects of cardiac iron overload on the incidence of arrhythmias in β-thalassemia major.   Methods: The present cross-sectional study enrolled patients with β-thalassemia major referred to a tertiary cardiovascular care center in Tehran, Iran, between January 2019 and January 2020. The patients’ characteristics were collected using hospital records. Cardiac iron overload status was assessed using cardiac T2* magnetic resonance (severe ≤10 ms, moderate =10–20 ms, and mild =20 ms).   Results: The present study recruited 81 β-thalassemia major cases with a mean age (SD) of 30.69 (11.12) years. Mild, moderate, and severe iron overload statuses were reported in 44.4%, 22.2%, and 33.3% of the stud population, respectively. Of 44 patients (54.3%) with arrhythmias, supraventricular tachyarrhythmias were seen in 24.7%, ventricular tachycardias in 19.8%, and atrioventricular blocks in 9.9%. A significant association was reported between iron overload status and the presence of arrhythmias (P<0.001). There was a significant association between iron overload and dilated atria (P=0.004). The left ventricular ejection fraction (LVEF) was not associated with cardiac iron status, but it was associated with the presence of arrhythmias (P<0.001). Desferal therapy was considerably associated with cardiac iron status (P=0.04).   Conclusions: According to iron chelation therapy, patients with more severe iron overload had a higher incidence rate of arrhythmias. Additionally, patients with lower LVEF values had a higher incidence rate of arrhythmias. There was no statistically significant association between LVEF and cardiac iron overload status. (Iranian Heart Journal 2022; 23(4): 60-68)
کلیدواژه‌های انگلیسی مقاله iron overload,arrhythmia,VT,SVT,AV block,Thalassemia
نویسندگان مقاله Amir Farjam Fazelifar |
Cardiac Electrophysiology Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran.

Mona Heidarali |
Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran.

Mohammad Reza Kiarsi |
Electrophysiology Research Center, Ahvaz University of Medical Sciences, Ahvaz, IR Iran.

Saeed Abrotan |
Rohani Hospital, Babol University of Medical Sciences, Babol, IR Iran.

Elahe Baghizadeh |
Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran.

Farnaz Rafiee |
Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran.

نشانی اینترنتی http://journal.iha.org.ir/article_158147_1987a4329c00c6da68961ff936e51b22.pdf
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