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Abstract Background The management of mitral valve disease in young children is challenging. Mechanical mitral valves could provide long-term durability; however, the need for anticoagulation increases the risk profile of mechanical valves. We report our experience in mechanical mitral valve replacement (MVR) in children under 2 years of age and evaluate factors affecting the outcomes. The study included all patients younger than 2 years who underwent mechanical MVR between 2000 and 2023. The study outcomes were mitral valve reoperation, bleeding, valve-related thrombosis, and survival. Results Twenty-three patients were included, with a mean age of 10.2 ± 5.9 months. The mitral valve sizes ranged from 16 to 25 mm, and 6 (26%) were placed in the supra-annular position. Complete heart block occurred in seven patients (30%), and operative mortality occurred in three patients (13%). Postoperative warfarin was used in 17 patients (74%). After discharge, bleeding occurred in five patients (22%), four were managed conservatively, and one had intracranial hemorrhage treated with craniotomy. Nine patients (39%) had valve-related thrombosis; two underwent reoperation, while seven were treated with alteplase in 26 patients. Valve-related thrombosis was more common in patients with supra-annular valves (p

Background: Transcatheter closure of secundum atrial septal defect is routinely performed under general anesthesia and transesophageal echocardiography guidance. If patients have good echo windows, the procedure could be performed under transthoracic echo guidance. Aim of study: To evaluate safety and efficacy of the intervention using fluoroscopy and echo guidance. Methods: In a case control study design, 180 patients underwent atrial septal defect closure between January 2010 and December 2016. In 32 patients, the intervention was performed under fluoroscopy and transthoracic echo guidance. Our study group consisted of 22 out of 32 patients (