title: Severe spasm of a large patent ductus arteriosus.
authors.affiliation: Amrita Institute of Medical Sciences and Research Centre, Kochi.
authors.forename: Bhava R J
authors.initials: BR
authors.lastname: Kannan
authors.forename: Ananthen K
authors.initials: AK
authors.lastname: Sadhananthan
authors.forename: R Krishna
authors.initials: RK
authors.lastname: Kumar
mesh_terms: D021721:Balloon Occlusion / Q000009:adverse effects* / Q000379:methods; D006328:Cardiac Catheterization / Q000379:methods; D003251:Constriction, Pathologic / Q000209:etiology / Q000503:physiopathology; D017023:Coronary Angiography; D004374:Ductus Arteriosus, Patent / Q000000981:diagnostic imaging / Q000628:therapy*; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D018570:Risk Assessment; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014655:Vascular Resistance