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ORIGINAL ARTICLE
Korean J Pediatr 1994 March;37(3) :317-321.
The Mitral Regurgitation in Patent Ductus Arteriosus (PDA)
Hyang Suk Yoon (Yoon HS)1, Soon Ho Choi (Choi SH)2
1Department of Pediatrics, Won Kwang University, School of Medicine, Iri, Korea
2Department of Thoracic and Cardiovascular Surgery, Won Kwang University, School of Medicine, Iri, Korea
Copyright © 1994 by The Korean Pediatric Society
ABSTRACT
Mitral regurgitation (MR) was analyzed by Doppler echocardiography, preoperatively and postoperatively, in 59 patients with patent ductus arteriosus (PDA). The ratio of left atrial dimension and aortic root dimension (LAD/LOD) and the maximal velocity of the mitral valve (MV max) were compared in pre, postop group. The degree of the regurgitation was given to the MR group. In preop MR group (13 of 59.22%), we compared the LAD/AOD by echo and the Qp/Qs by catheterization with non-MR group. The following results were obtained: 1) In preop MR group, about half of them had a grade 1 regurgitation, where as one fourth showed grade 2, remaining one fourth showed grade 3. The later were all changed to grade 2, postoperatively. The whiffle or mild MR (grade 1 or 2) shown preoperatively were slightly reduced in their degrees of regurgitation, but most were not disappeared and persisted to 7th postop day. 2) LAD/AOD and MV max were significantly reduced at postop state of PDA. 3) In preop MR group (n=13), LAD/AOD was significantly increased. Qp/Qs was higher in MRgrade 2 group (n=6). In conclusion, left atrial dilatation could be a factor causing mitral regurgitation in the PDA. The amount of the pulmonary blood flow also related to that. The size of the PDA itself, Rp/Rs and associated cardiac lesions were not related to the regurgitation.
Keywords: Patent Ductus Arteriosus (PDA) | Mitral Regurgitation (MR)
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Three Cases of Hemolysis After Transcatheter Closure of A Patent Ductus Arteriosus  2000 October;43(10)
Transcatheter Closure of the Patent Ductus Arteriosus  2000 September;43(9)
Usefulness of Plasma Atrial Natriuretic Peptide Concentration in the Diagnosis of Patent Ductus Arteriosus in Preterm Infants  2000 July;43(7)
Transcatheter Occlusion of Patent Ductus Arteriosus  1997 February;40(2)
Transcatheter Closure of Patent Ductus Arteriosus with the Rashkind PDA Occluder System  1997 January;40(1)
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