A cardiac implantable electronic device (CIED) is indicated for patients with severely reduced ejection fraction or with life-threatening cardiac arrhythmias. Infection related to a CIED is one of the most feared complications of this life-saving device. The rate of CIED infection has been estimated to be between 2 and 25; though evidence shows that this rate continues to rise with increasing expenditure to the patient as well as healthcare systems. Multiple risk factors have been attributed to the increased rates of CIED infection and host comorbidities as well as procedure related risks. Infection prevention efforts are being developed as defined bundles in numerous hospitals around the country given the increased morbidity and mortality from CIED related infections. This paper aims at reviewing the various infection prevention measures employed at hospitals and also highlights the areas that have relatively less established evidence for efficacy.

Introduction Primary cardiac lymphoma accounts for <2% of all primary cardiac tumours. It is uncommon in immunocompetent patients, often fatal and diagnosed at autopsy. Tumour usually involves the right heart chambers and pericardium. With advances in imaging, early diagnosis is possible and treatment including chemotherapy and surgery affords good prognosis. Case presentation We present a 50-year-old woman with abdominal pain and fevers for 5 days. Computed tomography of the abdomen showed splenic and renal infarcts but no mass or vegetation was noted on echocardiography. Thoracic computed tomography divulged a large left ventricular filling defect. Cardiac magnetic resonance imaging delineated a 3.5 × 4.5 cm anterobasal mass with frond-like projections and endocardial invasion without extracardiac involvement suggestive of a low-vascularity tumour. Echo-guided endomyocardial biopsy and minithoracotomy with needle biopsy were inconclusive. A sarcoid-protocol cardiac positron emission tomography-fluorodeoxyglucose scan showed focally elevated uptake in the basal anteroseptum without extracardiac uptake, supporting a malignant entity. This prompted open heart mass resection. Pathology revealed diffuse large B-cell lymphoma. Discussion Our case is a unique report of cardiac lymphoma isolated to the left ventricle. Location of the tumour and lack of specific imaging characteristics made it a diagnostic challenge. It underscores the importance of including lymphoma in the differential for intracardiac masses as it is responsive to chemotherapy. Additionally, it emphasizes the complementary role of imaging modalities and multidisciplinary team approach in diagnosis. Early diagnosis and therapy is the key to establishing successful outcomes.

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