Background:The alternative device to close perimembranous ventricular septal defect (pmVSD) has been searched for better result, less complications and applicable for infants. However, the ideal device is still unavailable. We aimed to evaluate the effectiveness and outcome of transcatheter pmVSD closure using the KONAR-multi functional occluder (MFO).Methods: Clinical, procedural, follow-up data of pmVSD patients with symptom of heart failure or evidence of significant left to right shunt, growth failure, recurrent respiratory tract infection, and history of endocarditis who underwent transcatheter closure using the MFO were prospectively evaluated. Results:Between January 2016 and December 2017, there were complete records of 132 pmVSD children closed using MFO from eleven centers in Indonesia. The median of age was 4.5 (0.3-17.4) years; weight 14.8 (3.5-57) kg, defect size at the smallest part 3.4 (1.0-8.1) mm, flow ratio 1.6 (1.3-4.9), mean pulmonary artery pressure 18 (7-79) mmHg, fluoroscopy time 18 (3.8-91) and procedural time 75 (26-290) minutes. A retrograde approach was done in 41 (31%) patients. Procedures succeeded in first 2 Kuswiyanto et al.
BACKGROUND Pulmonary arterial hypertension associated with congenital heart disease (PAH-CHD) is a common complication of uncorrected left-to-right shunt defects in acyanotic CHD and a frequent type of pulmonary hypertension in youth. The standards for operability in left-to-right shunts with increased pulmonary vascular resistance are not universally agreed upon. This study aimed to identify variables associated with uncorrectable lesion in children with PAH-CHD. METHODS This retrospective study used a database of all children who underwent cardiac catheterization at Sanglah Hospital, Bali, from May 2009 to April 2021. Pulmonary hypertension was defined as pulmonary artery pressure of >25 mmHg, while correctability was a fall of >20% in the pulmonary arterial resistance index (PARI) with final value of <6 WU/m2 when doing an acute vasoreactivity test using 100% oxygen. The analyses were carried out using SPSS software version 22.0 (IBM Corp., USA). RESULTS A total of 104 children were included. Cardiac catheterization showed that the uncorrectable group had a higher PARI (14.4 [8.88] WU/m2 versus 8.43 [3.85] WU/m2) and lower flow ratio (1.27 [0.83] versus 1.47 [0.77]) at baseline. In terms of correctability, pre-tricuspid lesions (OR = 0.05; 95% CI = 0.01–0.47; p = 0.01) and younger age group (OR = 0.32; 95% CI = 0.12–0.85; p = 0.01) were protective variables, whilst high baseline PARI (OR = 4.54; 95% CI = 1.64–12.57; p = 0.01) was unfavorable. CONCLUSIONS High baseline PARI was the most significant variable in predicting uncorrectable left-to-right shunt defects in PAH-CHD.
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