Computerised analysis of antepartum foetal heart parameters: New reference ranges
Autor: | Maria Laura Annunziata, Marta Campanile, Giovanni Magenes, Natascia Giuliano, Francesca Giovanna Esposito, Domenico Arduini, Andrea Di Lieto, Salvatore Tagliaferri, Maria G. Signorini |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
medicine.medical_specialty
Cardiotocography Foetal heart Foetal heart rate Sensitivity and Specificity Fetal Distress antepartum foetal monitoring Computerised cardiotocography foetal heart rate gestational age reference ranges Female Heart Rate Fetal Humans Infant Newborn Labor Obstetric Pregnancy Pregnancy Outcome Prospective Studies Reference Values Obstetrics and Gynecology Fetal 03 medical and health sciences 0302 clinical medicine Obstetrics and gynaecology Heart Rate Fetal distress Medicine 030212 general & internal medicine 030219 obstetrics & reproductive medicine medicine.diagnostic_test business.industry Obstetrics Gestational age Infant Obstetric medicine.disease Newborn Labor embryonic structures Gestation business |
Popis: | We selected 4012 cCTG records (one trace for each patient) performed in healthy pregnancies from 30th to 42nd gestational week using foetal heart rate (FHR), short-term variability (STV), long-term irregularity (LTI), Delta, approximate entropy (ApEn), spectral components as low frequency (LF), median frequency (MF), high frequency (HF) and LF/(HF + MF) ratio were analysed. Reference nomograms were created and sensitivity and specificity for the prediction of foetal compromise were calculated which were 90% and 89%, respectively. Changes of cCTG parameters according to gestational week were evaluated: FHR (r = -.65) and LF (r = -.87) showed a statistically significant reduction (p .05) with gestational age. STV (r = .59), LTI (r = .69), Delta (r = .67), and MF (r = .88) showed a statistically significant increase (p .05) with gestational age. In contrast, for ApEn (r = -.098), HF (r = .14) and LF/(HF + MF) ratio (r = -.47) a non-statistically significant change was found (p .05). The identification of reference ranges for cCTG indexes in according to gestational age could provide a more objective examination of cCTG trace. |
Databáze: | OpenAIRE |
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