Palpitations and Lipothymia in a Diabetic Patient: Unveiling a Mitral Myxoma

Mitral myxomas are rare benign tumors that typically originate in the left atrium, with a higher prevalence in women aged 30-60 years. They can cause a wide range of symptoms, including palpitations, lipothymia, and embolic events, depending on their size, location, and mobility. Early detection and surgical resection are critical for a favorable outcome.We present the case of a 60-year-old woman with a history of hypertension and type 2 diabetes who presented with recurrent lipothymia and palpitations. Physical examination revealed sinus tachycardia at 120 bpm, with stable hemodynamics and no signs of acute decompensation. Transthoracic echocardiography revealed a mass near the mitral valve, measuring 33 mm x 22 mm, highly suggestive of a mitral myxoma. The patient underwent successful surgical resection of the mass via a median sternotomy. The procedure was uneventful, and the patient recovered well without complications. At one year after surgery, the patient was asymptomatic, with no recurrence of palpitations or lipothymia. Serial echocardiograms showed no evidence of residual tumor or mitral valve dysfunction. Her hypertension and diabetes were better controlled, contributing to her positive recovery. This case highlights the importance of considering cardiac tumors, such as mitral myxomas, in patients presenting with unexplained palpitations and lipothymia. Early diagnosis through imaging and timely surgical intervention can lead to excellent outcomes. Clinicians should be vigilant in recognizing cardiac masses, particularly in patients with predisposing cardiovascular risk factors.