Clinical characteristics, diagnostic methods and results of surgically treated histologically benign cardiac myxomas.

Background: Myxomas are primary cardiac tumours that may be detected incidentally due to embolic events, intracardiac obstructive features or non-specific structural symptoms. The aim of this study was to share our experience of clinical features, diagnostic methods, surgical procedures and postoperative follow up of surgically treated cardiac myxomas.

Methods: Data of 34 patients who underwent surgery for a cardiac myxoma between January 2006 and June 2022 were retrospectively analysed. Group 1 (n = 19) consisted of patients who were symptomatic and group 2 ( n = 15) patients were asymptomatic. The medical records of the patients, their clinical status, diagnostic methods, operation information and postoperative course data were collected and recorded.

Results: A total of 34 patients (16 female; mean age 54.5 ± 8.8 years) underwent cardiac myxoma resection with cardiopulmonary bypass. Fifteen (44.1%) patients were diagnosed incidentally with asymptomatic myxoma. An additional cardiac surgical procedure was performed in six patients (17.7%). The 34 cardiac myxomas that were surgically resected were localised in the left atrium in 25 patients (73.5%) and in the right atrium in nine patients (26.5%). Patients' most common symptoms were dyspnoea (42.1%), palpitations (21.1%), ischaemic stroke (15.8%) and syncope (10.5%). There was no incident of 30-day mortality and no recurrence was observed in any patient during the follow-up period. The duration of surgical intervention in symptomatic patients was significantly shorter than in asymptomatic patients (p = 0.0001), but there was no statistical difference in terms of characteristics.

Conclusions: Myxomas are benign tumours, but they are serious pathologies that require early treatment because of signs of obstruction, embolic complications and confusion, with left atrial thrombus in the differential diagnosis.