Is there an Unnoticed Etiology of Right Atrial Aneurysm?

A 12-year-old male was referred for surgery with the diagnosis of right atrial aneurysm. Resection of the right atrial aneurysm was performed under total cardiopulmonary bypass. Besides a very thin muscular layer, histopathological evaluation of the aneurysm specimen revealed extensive eosinophilic infiltration at the epicardial side which, from place to place showed penetrations into the muscular layer. The screening tests performed for determination of the etiology of eosinophilia were indeterminate supporting the diagnosis of idiopathic right atrial aneurysm. In conclusion, although the reason for the eosinophilia could not be detected, it may have a part in the development of right atrial aneurysm that merits further investigation.

Prenatal diagnosis of right atrial diverticulum and outcomes: a case report

Background Right atrial diverticulum is a rare congenital condition which causes the right atrium enlargement. The squeals of this condition can vary from cardiac abnormalities to respiratory distress and systemic thromboembolism, hence Identifying these patients can prevent life-threatening outcomes. Prenatal diagnosis has the benefit of better following up and managing patients to prevent later subsequences. Case presentation Echocardiography of the neonate 3 days after birth showed a massive right atrium with a diverticulum measuring 2.09*2.27 cm connected laterally to the right atrium without any clot in it. A fibromuscular strand was seen at the entry of the diverticulum through the right atrium.CT-Angiography 16 days after birth showed a massive right atrium with a diverticulum in the right hemithorax and confirmed the diagnosis.The patient underwent on low dose aspirin therapy to prevent thromboembolism.After 16 months the patient goes on well this condition without cardiac or respiratory symptoms and echocardiography showed the diverticulum size increased to 3.5*2.5 cm without any clot in it.Surgical resection has not proceeded yet because the patient has been asymptomatic until now.ConclusionBecause of the rarity of this condition, management of these patients is highly dependent on the symptoms they show, and also early diagnosis can prevent further medical squeals. Low doses aspirin is suggested to prevent the formation of thrombosis. Surgical resection can be done in patients with serious cardiac or respiratory abnormality, It is important to do not misdiagnosis this condition with a right atrial aneurysm which involves whole layers of the atrial wall. Although outcomes of both conditions are almost the same, using a proper term to establish an accurate diagnosis preferred.

Right Atrial Aneurysm with Supraventricular Tachycardia and Frequent Atrial Premature: A Case Report

Background: Right atrial aneurysm (RAA) is a rare form of congenital heart disease with a wide range of clinical presentation varying from asymptomatic patients to those with refractory atrial arrhythmias. Diagnosis is often confused with other causes of right atrial dilation such as Ebstein disease or idiopathic right atrial enlargement. Case presentation: We present the case of right atrial aneurysm with supraventricular tachycardia and frequent atrial premature in our institution and discuss the diagnostic challenges, the research progress of right atrial aneurysm and follow-up situation. Conclusion: RAA should be considered in the differential diagnosis of RA enlargement. Accurate diagnosis can be achieved by echocardiograph, and our report also highlights the importance of longitudinal follow-up of RAA over 5 years and the long-term regular conservative treatment for patients with supraventricular tachycardia and frequent atrial premature could be useful.