| Balloon mitral valvuloplasty: comparison of haemodynamic and echocardiographic assessment of mitral stenosis at different heart rates in the catheterisation laboratory. | |
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MedLine Citation:
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PMID: 10213275 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIMS: To compare echo-Doppler, Gorlin equation and haemodynamic methods of measuring mitral valve stenosis during right ventricular pacing-induced tachycardia before and after Inoue balloon mitral valvuloplasty to determine which method gave the most consistent results. METHODS AND RESULTS: Measurements were made before and after valvuloplasty at: baseline heart rates, paced at 115 and then 145 beats/min. Mitral valve area by echo-Doppler was 1.1(+/-0.1) cm2 (mean +/- S.E.) before and 1.8(+/-0.2) cm2 after valvuloplasty; and by Gorlin equation: 0.9(+/-0.1) cm2 before and 1.5(+/-0.1) cm2 after. Echo-Doppler measurements were heart rate dependent but those by Gorlin measurements were not. At baseline, cardiac index was 2.08(+/-0.2) l min(-1), left atrial pressure 23.3(+/-7.9) mm Hg and mean mitral diastolic gradient 16.9(+/-9.9) mm Hg. After valvuloplasty, cardiac index was 2.31(+/-0.1) l min(-1), left atrial pressure fell to 19.2(+/-5.6) mm Hg and mean diastolic gradient was reduced to 8.5(+/-1.8) mm Hg. CONCLUSIONS: The Gorlin mitral valve area appeared to be the most heart rate independent indicator of success following valvuloplasty. |
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Authors:
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A A Harcombe; P F Ludman; C Wisbey; J J Crowley; L Sharples; L M Shapiro |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: International journal of cardiology Volume: 68 ISSN: 0167-5273 ISO Abbreviation: Int. J. Cardiol. Publication Date: 1999 Mar |
Date Detail:
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Created Date: 1999-06-04 Completed Date: 1999-06-04 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8200291 Medline TA: Int J Cardiol Country: IRELAND |
Other Details:
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Languages: eng Pagination: 253-9 Citation Subset: IM |
Affiliation:
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Cardiac Unit, Papworth Hospital NHS Trust, Cambridge, UK. aah@papworth-tr.anglox.nhs.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Balloon Dilatation* Echocardiography* Echocardiography, Doppler Echocardiography, Transesophageal Female Heart Catheterization Heart Rate / physiology* Hemodynamics / physiology* Humans Male Middle Aged Mitral Valve Stenosis / physiopathology*, therapy* |
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