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Abstract Background The presence of cardiac myxoma in the right atrium (RA) is rare. There is limited knowledge regarding the clinical symptoms and diagnosis of RA myxoma. This systematic review aimed to provide a summary of the clinical and laboratory characteristics, electrocardiogram (ECG) findings, and outcome previous cases with RA myxoma. Methods A comprehensive search was conducted in PubMed, Web of Science, and Scopus to identify relevant studies. Inclusion criteria were case reports and case series written in English that provided sufficient data on the manifestation of RA myxoma. Descriptive statistics were used for quantitative analysis. Results The search identified 619 patients from 480 eligible studies. The patient’s mean age was 45.7 ± 17.6 years, and 55.4% of cases were female. The most common clinical manifestations of RA myxoma were cardiac, systemic, and neurologic manifestations which reported in 77.0%, 34.8%, and 21.1% of cases, respectively. Besides, 11.7% of RA myxoma were asymptomatic. ECG findings revealed normal in 39.4% reported cases. The ECG abnormalities included tall or peaked P-wave, RA and LA enlargement (19.2%), abnormal T-wave (14.0%), sinus tachycardia (11.8%), and incomplete or complete RBBB (11.2%). Echocardiography remained the diagnostic method in a majority of the cases. The mortality rate of RA myxoma was low (9.2%) during the follow-up. Conclusions This systematic review provides a comprehensive summary of the clinical and laboratory manifestations and outcomes of RA myxoma, contributing to the existing knowledge on this rare cardiac tumor. |
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