Affiliation:
1. Insight Research Group SAS, Colombia
2. Universidad Cooperativa de Colombia, Colombia
Abstract
Abstract Objectives: although mortality and perinatal asphyxia in newborns have been considerably reduced, there are still deficiencies in screening and diagnosis methods for intrapartum fetal well being that aim to detect its early alterations. Therefore, the purpose of this research was to apply a methodology based on probability and entropy and confirm its capacity to detect normal and abnormal fetal cardiac dynamics from 20-minute cardiotocographic tracings. Methods: 80 cardiotocographic tracings of pregnant women in the last trimester were collected, of which the minimum and maximum fetal heart rate were evaluated every 10 seconds, as well as its repetitions along with their probability and the diagnostic S/k ratio. Finally, the statistical analysis was carried out to establish the diagnostic capacity of the method concerning the clinical evaluation and interpretation of the cardiotocographic tracing, taken as the Gold Standard. Results: it was confirmed that S/k ratio values differentiated normal from abnormal fetal cardiac dynamics with sensitivity and specificity values of 100% and a Kappa coefficient of 1. Conclusion: the applicability of a diagnostic mathematical method of cardiotocography was confirmed, which suggests its implementation in the clinical context to detect alterations in fetal well-being in 20 minutes.
Subject
Public Health, Environmental and Occupational Health,Obstetrics and Gynecology,Pediatrics, Perinatology and Child Health
Reference31 articles.
1. Admission tests other than cardiotocography for fetal assessment during labour;Khunpradit S;Cochrane Database Syst Rev,2011
2. Clinical obstetrics & gynecology;Magowan BA,2018
3. New FIGO and Swedish intrapartum cardiotocography classification systems incorporated in the fetal ECG ST analysis (STAN) interpretation algorithm: agreements and discrepancies in cardiotocography classification and evaluation of significant ST events;Olofsson P;Acta Obstet Gynecol Scand,2018
4. Agreement and accuracy using the FIGO, ACOG and NICE cardiotocography interpretation guidelines;Santo S;Acta Obstet Gynecol Scand,2017
5. Continuous cardiotocography (CTG) as a form of electronic fetal monitoring (EFM) for fetal assessment during labor;Alfrevic Z;Cochrane Database Syst Rev,2017