ArticleJACC. Case reports2026
Immediate Zero-Contrast Ductal Closure Following Emergent Valvotomy in Pulmonary Atresia With Intact Ventricular Septum.
Article in JACC. Case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors.
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Abstract
backgroundThe timing of patent ductus arteriosus (PDA) closure after valvotomy in pulmonary atresia with intact ventricular septum (PA-IVS) remains controversial. CASE SUMMARY: A 23-day-old neonate with PA-IVS and tripartite right ventricle underwent valvotomy. Immediate PDA closure was subsequently performed because systemic diastolic pressure remained low despite adequate antegrade pulmonary flow, suggesting clinically significant ductal runoff with risk of systemic hypoperfusion. Given the patient's impaired renal function, the PDA closure was conducted using zero-contrast technique under minimal fluoroscopic guidance. DISCUSSION: Concomitant valvotomy and PDA closure may be considered in selected PA-IVS patients when antegrade pulmonary flow is adequate but ductus arteriosus remains hemodynamically significant. TAKE-HOME MESSAGE: Timing of ductal occlusion in PA-IVS requires individualized hemodynamic judgment, with zero-contrast PDA closure strategy as feasible alternative in renal dysfunction patients.
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