Document Detail

Sizing of balloons in balloon mitral valvotomy.
MedLine Citation:
PMID:  1289214     Owner:  NLM     Status:  MEDLINE    
In twenty six consecutive patients who underwent balloon mitral valvotomy (BMV) by the transseptal double balloon technique, the mitral valve area (MVA) increased from 0.78 +/- 0.1 cm2 to 1.80 +/- 0.3 cm2, (p < 0.001). Effective balloon dilating area (EBDA) of each combination of balloons used was calculated using a standard formula. Patients were classified into 4 subgroups with approximate EBDAs of 3.3, 4.0, 4.9 and 5.7 cm2 and they had mean post-BMV MVAs of 1.28, 1.78, 1.89 and 1.98 cm2 respectively (ANOVA F = 3.32, p < 0.05). Patients were reclassified after normalisation of EBDA and post-BMV MVA to square metre of body surface area. Three subgroups with mean normalised EBDAs of 2.32, 2.96 and 3.62 cm2/m2 had mean normalised post-BMV MVAs of 0.99, 1.17 and 1.40 cm2/m2 respectively (ANOVA F = 6.85, p 0.01). A trend towards increasing mitral regurgitation with increasing balloon size was noted. Three cases of mitral regurgitation including one case of severe mitral regurgitation occurred in the subgroup of 9 patients with largest normalised EBDAs. The overall correlation between normalised EBDAs and normalised post BMV MVA was strong r = 0.67, p < 0.01). The optimal normalised EBDA for Indian patients undergoing BMV is around 3.6 cm2/m2. Balloons used should be sized accordingly.
G Joseph; C S Thomas; K K Saxena; S Krishnaswami
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Indian heart journal     Volume:  44     ISSN:  0019-4832     ISO Abbreviation:  Indian Heart J     Publication Date:    1992 Jul-Aug
Date Detail:
Created Date:  1993-03-25     Completed Date:  1993-03-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0374675     Medline TA:  Indian Heart J     Country:  INDIA    
Other Details:
Languages:  eng     Pagination:  203-6     Citation Subset:  IM    
Department of Cardiology, Christian Medical College Hospital, Vellore, Tamil, Nadu.
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MeSH Terms
Balloon Dilatation / adverse effects,  instrumentation*
Mitral Valve / pathology*
Mitral Valve Insufficiency / etiology
Mitral Valve Stenosis / pathology,  therapy*
Treatment Outcome

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