Predictors of Valve Failure Following Surgical Atrioventricular Valve Replacement with a Melody Valve in Infants and Children
- PMID: 38907874
- DOI: 10.1007/s00246-024-03538-1
Predictors of Valve Failure Following Surgical Atrioventricular Valve Replacement with a Melody Valve in Infants and Children
Abstract
Options for atrioventricular (AV) valve replacement in small pediatric patients are very limited. The Melody valve has shown reasonable short-term outcomes. This study was aimed at identifying predictors of valve failure following AV valve replacement with a Melody valve at a single-center. 26 patients underwent 37 AV valve replacements with 31/37 (84%) of valves placed in the systemic AV valve position. Median age at procedure was 17 months (IQR 4-33) and weight was 8.5 kg (IQR 6.25-12.85). Median balloon size for valve implant was 20 mm (IQR 18-22). Repeat intervention occurred in 21 cases (57%) with repeat surgery in all but one. Median freedom from re-intervention was 31 months; 19% were free from re-intervention at 60 months. Age < 12 months weight < 10 kg and BSA < 0.4 m2 were all significant risk factors for early valve failure (p = 0.003, p 0.017, p 0.025, respectively). Valve longevity was greatest with balloon inflation to diameter 1.20-1.35 times the patient's expected annular diameter (Z0), relative to both smaller or larger balloons (p = 0.038). In patients less than 12 months of age, patients with single ventricle physiology had an increased risk of early valve failure (p = 0.004).
Keywords: Atrioventricular valve replacement; Melody valve; Pediatric.
© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Conflict of interest statement
Declarations. Competing Interests: The authors have no relevant financial or non-financial interests to disclose.
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