Infundibular “Spasm” Masquerading as Failed Balloon Pulmonary Valvuloplasty in an Infant and its Dramatic Response to Beta Blocker
Shyamajit Samaddar · 2021 · Open Access Journal of Cardiology
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
A 3-month-old infant with severe valvular PS showed significant dynamic infundibular obstruction which masqueraded as residual PS following Balloon Pulmonary Valvuloplasty (BPV). The obstruction responded dramatically to intravenous…
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Metadata source: Crossref · DOI 10.23880/oajc-16000159