Beneficial effect of fenoldopam mesylate in preventing peak blood lactate level during cardiopulmonary bypass for paediatric cardiac surgery.

Objectives: To evaluate the efficacy of fenoldopam mesylate (dose 0.2 µg/kg/min) in reducing the occurrence of hyperlactataemia (i.e.

Superior transseptal approach for surgical removal of left atrial myxoma.

Eight patients (4 men, 4 women), mean age 51 years, referred to our Institution for left atrial myxoma underwent removal of the tumor through a superior transseptal approach. All patients in sinus rhythm with normal conduction time. The myxomas were localized in the fossa ovalis (3 cases), interatrial septum (2 cases), left appendage (2 cases), and mitral annulus (1 case).

Rupture of mitral valve annulus after mitral balloon valvotomy: a case report.

We report the case of a 51-year-old woman who underwent percutaneous mitral valvotomy using single balloon technique for restenosis after a previous surgical closed commissurotomy. After the procedure, she presented with severe mitral regurgitation and was referred to our center for mitral valve replacement. At surgery, the underlying cause of the mitral regurgitation was shown to be a tear at the commissural site which extended into the annulus.

Surgery for atrial fibrillation.

Objective: The mechanisms of atrial fibrillation arc multiple reentry circuits spinning around the atrial surface, and these baffle any attempt to direct surgical interruption. The purpose of this article is to report the surgical experience in the treatment of isolated and concomitant atrial fibrillation at the Cardiac Surgical Institute of the University of Pavia.

Methods: In cases of atrial fibrillation secondary to mitral/valve disease, surgical isolation of the left atrium at the time of mitral valve surgery can prevent atrial fibrillation from involving the right atrium, which can exert its diastolic pump function on the right ventricle.