A case report of left atrial myxoma presenting with amnesia

Abstract

Background Primary cardiac tumors are rare, and approximately 90% of them are benign. Myxoma is the most common type of these tumors occurring in the left atrium in 75–85% of cases. The tumor can cause the left atrio-ventricular valve obstruction and embolization phenomenon. Case presentation We reported a case of 54-year-old man with complaints of dyspenea and amnesia. In our patient, transthoracic echocardiography revealed a mass of 28*63 mm attached to the upper intra-atrial septum, which was prolapsing through the mitral valve into the left ventricle during diastole, being indicative of the left atrial myxoma. On examination, he was alert and conversant, and no pathological abnormality was observed in the examination of cardiovascular, gastrointestinal, respiratory, hepatic, renal and nervous systems. After myxoma diagnosis, the tumor was removed under cardiac surgery and discharged under good conditions. In the telephone follow-up after discharge, the patient recovered and did not report the disease and surgery complications. Conclusions Patients with cardiac myxoma are usually asymptomatic, but they may have manifestations related to the embolism phenomenon or intracardiac obstruction. Therefore, myxoma may represent an emergency. Surgery should be performed as soon as possible. If surgery is delayed, the patient may suffer from serious and irreversible complications, such as stroke and cardiac arrest.

Cardiac metastasis of triple-negative breast cancer mimicking myxoma: A case report

“…In addition, the signs and symptoms that arise can be caused by obstruction or regurgitation of the mitral valve, such as shortness of breath and pulmonary edema [12] . Patients can also complain of non-specific systemic symptoms such as fatigue, cough, fever, arthralgia, and myalgia [13] . The degree of tumor metastases to the heart and clinical symptoms had no strong relationship.…”

“…Chest X-ray can identify cardiomegaly caused by atrial dilation. Currently, echocardiography is the main diagnostic modality of atrial tumor, which can determine its location, shape, size, and relationship to the structure of the heart [13] . Transthoracic echocardiography is the most widely used modality; however, transesophageal echocardiography is more sensitive and specific because it can detect tumors of only 1–3 mm in size.…”

Diagnosis of the right atrial myxoma after treatment of COVID‐19: A case report

“… 18 Some patients may experience symptoms such as shortness of breath, angina pectoris, syncope, dizziness, fatigue, cough, and fever. 19 , 20 Furthermore, several cases of emboli have been reported in patients with myxoma, and more systemic emboli have been reported due to the increased prevalence of these left‐sided primary cardiac tumors. 21 , 22 Moreover, an embolism caused by right atrial myxoma involves the pulmonary blood flow system.…”

“… 24 Myxoma indicates an emergency, and surgery should be performed as soon as possible after diagnosis to avoid embolization and valve obstruction as acute complications of postponing surgery. 19 , 20 …”

“…Infectious cardiac myxoma is a rare condition that manifests with high fever and emboli in other organs 24 . Myxoma indicates an emergency, and surgery should be performed as soon as possible after diagnosis to avoid embolization and valve obstruction as acute complications of postponing surgery 19,20 …”