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Atrioventricular conduction time in foetuses assessed by Doppler echocardiography
Tomek V, Janoušek J, Reich O, Gilík J, Gebauer RA, Skovránek J.
Language English Country Czech Republic
Document type Comparative Study, Research Support, Non-U.S. Gov't
Grant support
NR9451
MZ0
CEP Register
Digital library NLK
Full text - Část
Source
NLK
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from 2005-01-01
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- MeSH
- Atrioventricular Block physiopathology ultrasonography MeSH
- Echocardiography, Doppler, Color methods MeSH
- Humans MeSH
- Fetal Diseases physiopathology ultrasonography MeSH
- Pregnancy MeSH
- Ultrasonography, Prenatal methods MeSH
- Check Tag
- Humans MeSH
- Pregnancy MeSH
- Female MeSH
- Publication type
- Research Support, Non-U.S. Gov't MeSH
- Comparative Study MeSH
We performed measurement of mechanical atrioventricular conduction time intervals in human fetuses assessed by Doppler echocardiography and provided reference values. We found that atrioventricular conduction time interval was prolonged with gestational age and decreased with increasing fetal heart rate. No correlation between gestational age and heart rate was found. Using normal limits established by this study, mechanical atrioventricular interval >135 ms in the 20(th) week and/or >145 ms in the 26(th) week of gestation could be suspected of having the first-degree AV block. We compared reference values with fetuses of mothers with anti-SSA Ro/SSB La autoantibodies, being in risk of isolated congenital heart block development. One of 21 fetuses of mothers with positive autoantibodies was affected by prolonged atrioventricular interval according to the established limits, with sinus rhythm after the birth.
References provided by Crossref.org
Lit.: 22
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- $a Kardiocentrum and Cardiovascular Research Centre, University Hospital Motol, Prague, Czech Republic. viktor.tomek@fnmotol.cz.
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- $a Lit.: 22
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- $a We performed measurement of mechanical atrioventricular conduction time intervals in human fetuses assessed by Doppler echocardiography and provided reference values. We found that atrioventricular conduction time interval was prolonged with gestational age and decreased with increasing fetal heart rate. No correlation between gestational age and heart rate was found. Using normal limits established by this study, mechanical atrioventricular interval >135 ms in the 20(th) week and/or >145 ms in the 26(th) week of gestation could be suspected of having the first-degree AV block. We compared reference values with fetuses of mothers with anti-SSA Ro/SSB La autoantibodies, being in risk of isolated congenital heart block development. One of 21 fetuses of mothers with positive autoantibodies was affected by prolonged atrioventricular interval according to the established limits, with sinus rhythm after the birth.
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