Premium
P05Use of prognostic biophysical test in the prediction of spontaneous abortion risk in early pregnancy
Author(s) -
Błaszczyk K.,
Wojcieszyn M.,
Łukasik A.,
Biemat M.,
Porqba R.
Publication year - 2000
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.2000.00004-1-5.x
Subject(s) - medicine , abortion , pregnancy , nomogram , obstetrics , ultrasound , pregnancy test , gynecology , radiology , genetics , biology
Background The aim of the study was to introduce Prognostic Biophysical Test (PBT) in ultrasound diagnostic practice to evaluate spontaneous abortion risk in the first trimester of pregnancy. PBT consists of 3 routine USG parameters estimated together: Crown Rump Length and Yolk Sac (YS) measurement and visualization of Fetal Heart Rate (FHR). Method USG examination with, 7.0 MHz transvaginal Bruel & Kjaer transducer was performed in 199 pregnant women between 5 and 12 weeks of pregnancy. YS diameter and cram‐rump length were measured and compared to nomograms. FHR presence or absence was stated. PBT score was 1 point for correct value off each parameter, and 0 for incorrect one. PBT score of 3–2 points were considered to be good prognostic value, 0–1 points as poor prognostic value. PBT results were compared with pregnancy outcome. Results PBT allowed prediction of spontaneous abortion with a sensitivity of 97%, specificity of 67%, false positive of 33%, false negative of 3% and positive predictive value of 72%. Conclusion The test called by the authors PBT seems to be a simple and sensitive option in prediction of spontaneous abortion risk in the first trimester of pregnancy using ultrasound examination.