caa a22 4500 445307617 CHVBK 20180317142618.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00404-010-1563-5 doi (NATIONALLICENCE)springer-10.1007/s00404-010-1563-5 Auscultation of the fetal heart in early pregnancy [Elektronische Daten] [James Rowland, Alexander Heazell, Cathie Melvin, Simon Hill] Introduction: Auscultation of the fetal heart is a common event in antenatal care, in early pregnancy it may be associated with false negative results, which require ultrasound scan to confirm fetal viability. Methods: We studied 197 women in early pregnancy to determine the gestational age at which the fetal heart can be reliably identified and the factors which determined the accuracy of the test. Results: The proportion of successful auscultations increased with advancing gestation (p<0.001). There was no effect of maternal body mass index or the level of midwifery experience. Conclusion: For a sensitivity of 90%, the fetal heart should be auscultated after 13week gestation. If a sensitivity of 80% is acceptable the fetal heart can be auscultated after 12+1week gestation. Springer-Verlag, 2010 Fetal heart nationallicence Fetal viability nationallicence Auscultation of fetal heart nationallicence First Trimester nationallicence Rowland James Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut Heazell Alexander Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut Melvin Cathie Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut Hill Simon Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut Archives of Gynecology and Obstetrics Springer-Verlag 283(2011-03-01), 9-11 0932-0067 283<9 2011 283 404 https://doi.org/10.1007/s00404-010-1563-5 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00404-010-1563-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rowland James Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut NATIONALLICENCE 700 1- Heazell Alexander Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut NATIONALLICENCE 700 1- Melvin Cathie Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut NATIONALLICENCE 700 1- Hill Simon Department of Obstetrics and Gynaecology, Royal Blackburn Hospital, East Lancashire Hospitals NHS Trust, Haslingden Road, BB2 3HH, Blackburn, UK aut NATIONALLICENCE 773 0- Archives of Gynecology and Obstetrics Springer-Verlag 283(2011-03-01), 9-11 0932-0067 283<9 2011 283 404 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer