Fetal pulse oximetry and wavelet analysis of the fetal heart rate in the evaluation of abnormal cardiotocography tracings

Salamalekis, E; Siristatidis, C; Vasios, G; Saloum, J; Giannaris, D; Chrelias, C; Prentza, A; Koutsouris, D

dc.contributor.author	Salamalekis, E	en
dc.contributor.author	Siristatidis, C	en
dc.contributor.author	Vasios, G	en
dc.contributor.author	Saloum, J	en
dc.contributor.author	Giannaris, D	en
dc.contributor.author	Chrelias, C	en
dc.contributor.author	Prentza, A	en
dc.contributor.author	Koutsouris, D	en
dc.date.accessioned	2014-03-01T01:24:24Z
dc.date.available	2014-03-01T01:24:24Z
dc.date.issued	2006	en
dc.identifier.issn	1341-8076	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17248
dc.subject	Abnormal cardiotocography tracings	en
dc.subject	Cesarean rate	en
dc.subject	Fetal pulse oximetry	en
dc.subject	Intrapartum hypoxia monitoring	en
dc.subject	Neural networks	en
dc.subject	Wavelet analysis	en
dc.subject.classification	Obstetrics & Gynecology	en
dc.subject.other	adult	en
dc.subject.other	Apgar score	en
dc.subject.other	article	en
dc.subject.other	brain disease	en
dc.subject.other	cardiotocography	en
dc.subject.other	cesarean section	en
dc.subject.other	clinical trial	en
dc.subject.other	computer assisted diagnosis	en
dc.subject.other	controlled clinical trial	en
dc.subject.other	controlled study	en
dc.subject.other	diagnostic accuracy	en
dc.subject.other	female	en
dc.subject.other	fetus	en
dc.subject.other	fetus distress	en
dc.subject.other	fetus heart rate	en
dc.subject.other	fetus monitoring	en
dc.subject.other	heart rate variability	en
dc.subject.other	human	en
dc.subject.other	hypoxia	en
dc.subject.other	labor	en
dc.subject.other	major clinical study	en
dc.subject.other	meta analysis	en
dc.subject.other	metabolic acidosis	en
dc.subject.other	newborn	en
dc.subject.other	newborn intensive care	en
dc.subject.other	pulse oximetry	en
dc.subject.other	reliability	en
dc.subject.other	sensitivity and specificity	en
dc.subject.other	systematic review	en
dc.subject.other	Apgar Score	en
dc.subject.other	Cardiotocography	en
dc.subject.other	Cesarean Section	en
dc.subject.other	Female	en
dc.subject.other	Fetal Blood	en
dc.subject.other	Fetal Distress	en
dc.subject.other	Fetal Hypoxia	en
dc.subject.other	Heart Rate, Fetal	en
dc.subject.other	Humans	en
dc.subject.other	Hydrogen-Ion Concentration	en
dc.subject.other	Intensive Care, Neonatal	en
dc.subject.other	Labor, Obstetric	en
dc.subject.other	Oximetry	en
dc.subject.other	Pregnancy	en
dc.title	Fetal pulse oximetry and wavelet analysis of the fetal heart rate in the evaluation of abnormal cardiotocography tracings	en
heal.type	journalArticle	en
heal.identifier.primary	10.1111/j.1447-0756.2006.00377.x	en
heal.identifier.secondary	http://dx.doi.org/10.1111/j.1447-0756.2006.00377.x	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Aim: Previous studies indicate that the addition of wavelet analysis of the fetal pulse oximetry tracings (FSPO2) and fetal heart rate (FHR) variability to cardiotocography (CTG), for intrapartum fetal monitoring, provides useful information on the fetal response to hypoxia. We applied the new procedure in non-reassuring CTG patterns, in which cesarean section was performed, and tested its accuracy in the diagnosis of the intrapartum fetal compromise. Methods: At the 'Aretaieion' University Hospital labor ward, 318 women with term fetuses in the cephalic presentation entered the trial during labor. They all were monitored with external CTG and fetal pulse oximetry. In the cases that cesarean section was applied, because of abnormal CTG tracings, we applied a method based on the multiresolution wavelet analysis and a self-organized map neural network on the first and second stage of labor. The main outcome parameter was the rate of cord metabolic acidosis at birth (pH < 7.05). Secondary outcomes included Apgar scores at 5 min, fetal transmission to neonatal intensive care unit (NICU) and neonatal encephalopathy. Results: Fifty out of 318 cases delivered operatively because of abnormal CTG patterns (rate 15.72%). In 30 cases, cord pH was >7.05, while in 11 Apgar scores at 5 min were <7, while none of those neonates were transferred to NICU. In the rest 20 cases cord pH was <7.05; in all of these cases Apgar scores at 5 min were <7, while four neonates were transferred to NICU. In one of them, neonatal encephalopathy was diagnosed. After the offline application of wavelet analysis and neural networks to the pulse oximetry and FHR variability readings of the 50 cases, statistics calculated that the system showed a sensitivity of 85% and a specificity of 93%, while false negative and false positive rates were 15% and 7%, respectively. Conclusion: Computerized FHR and FSPO2 monitoring shows an excellent efficacy and reliability in interpreting non-reassuring FHR recordings. © 2006 Japan Society of Obstetrics and Gynecology.	en
heal.publisher	BLACKWELL PUBLISHING	en
heal.journalName	Journal of Obstetrics and Gynaecology Research	en
dc.identifier.doi	10.1111/j.1447-0756.2006.00377.x	en
dc.identifier.isi	ISI:000235986400003	en
dc.identifier.volume	32	en
dc.identifier.issue	2	en
dc.identifier.spage	135	en
dc.identifier.epage	139	en