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Risk factors for embolism in cardiac myxoma: a retrospective analysis
Deng-Ke He1, Yu-Feng Zhang1, Yin Liang1
1Department of Cardiothoracic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China (mainland).
Insights
Cardiac myxoma patients with higher platelet counts and atypical tumor features face increased embolic event risk. These factors are crucial for predicting and preventing serious complications in myxoma management.
Area of Science:
- Cardiology
- Oncology
- Vascular Medicine
Background:
- Cardiac myxomas are the most common primary heart tumors.
- They are frequently associated with embolic events, leading to high morbidity and mortality.
- Typical myxoma location is the left atrium's interatrial septum; atypical locations increase risk.
Purpose of the Study:
- To identify risk factors for embolic events in patients with cardiac myxomas.
- To compare preoperative data between patients who experienced embolic events and those who did not.
Main Methods:
- Retrospective study of 162 surgically treated cardiac myxoma patients.
- Data collected included platelet count, sex, age, tumor size, location, surface, and attachment.
- Comparison of these factors between embolic and non-embolic patient groups.
Main Results:
- No significant differences in vascular risk factors were observed between groups.
- Higher platelet count (>300 × 10(9)/L) and elevated mean platelet volume were significantly associated with embolic events.
- Atypical tumor location and irregular tumor surface were independent risk factors for embolism.
Conclusions:
- Tumor location, macroscopic appearance, mean platelet volume, and high platelet count are significant risk factors for embolic events in cardiac myxoma patients.
- These findings aid in risk stratification and management strategies for cardiac myxoma.
Background:
Myxomas are the most common primary heart tumors and are closely associated with embolic events. Cardiac myxomas typically arise from the interatrial septum at the border of the fossa ovalis in the left atrium. Any other location is considered atypical. Embolism, one of the complications of myxoma, is associated with high morbidity and mortality. The aim of this study was to investigate the risk factors for embolism in patients with cardiac myxoma.
Material And Methods:
In this retrospective study, a cohort of 162 patients with cardiac myxomas was surgically treated between January 1998 and June 2014 at 3 cardiac centers in China. Preoperative data, including platelet count, sex, age, and the tumor (size, location, surface, and attachment), were compared between embolic and non-embolic groups of patients.
Results:
No significant differences in vascular risk factors were seen between the 2 groups. However, the percentage of higher platelet count (>300 × 10(9)/L) and mean platelet volume in the embolic group were significantly higher than in the non-embolic group (P=0.0356, and 0.0113, respectively). Irregular surface and atypical location of the myxomas were also independently associated with increased risk of embolic complications.
Conclusions:
Tumor location, macroscopic appearance, mean platelet volume, and high platelet count are strong risk factors for embolic events in patients with cardiac myxomas.
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