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  • Title: [Myxomas of the right atrium. Apropos of 3 cases. Review of the literature].
    Author: Pavie A, Escande G, Cham B, Baehrel B, Barra J, Villemot JP, Gandjbakhch I, Cabrol C.
    Journal: Arch Mal Coeur Vaiss; 1981 Mar; 74(3):265-72. PubMed ID: 6782986.
    Abstract:
    The authors report 3 cases of right atrial myxoma and review 88 other cases in the literature managed by surgery. The first personal case, in a 74 year old patient, illustrate the dramatic consequences of tumour engagement in the tricuspid orifice, in this instance cardiac arrest during catheterisation justifying emergency surgery. The second case exemplifies the diagnostic value of echocardiography: the correction of an erroneous diagnosis of pericarditis. The third case shows that some forms may be totally asymptomatic, the tumor being diagnosed on clinical examination and confirmed by echocardiography. In their review of the literature, the low overall incidence of primary cardiac tumours, of which myxoma is the most common, is emphasised. A right atrial localisation is found in only 25% cases. 88 surgical reports have been published since Bahnam's original attempt at surgical cure under cardiopulmonary bypass. Myxoma may occur at any age but it usually presents between the ages of 30 and 60. Some familial forms have been reported. The presenting symptoms are protean but usually point to an obstacle in the right heart chambers. They may be summarized as follows: 1. Isolated right ventricular failure without left heart disease may be observed in large tumours (reported in 50% of cases). 2. Simulating pericarditis (25% of cases) with a low grade pyrexia (25% of cases). 3. Paroxysmas of cardio respiratory distress of variable severity (a few cases). Clinical examination, chest x-ray and ECG are not diagnostic but do show non-specific changes which are of value in drawing attention to the heart and leading to echocardiography. This confirms the diagnosis by showing abnormal mobile echos in the right atrium prolapsing into the right ventricle in diastole. Angiography serves only to confirm these appearances. Surgery is the treatment of choice, and preferably with the shortest possible delay. It offers definitive cure at a minimal risk to the patient.
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