Validity of short term variation (STV) in detection of fetal acidemia

Anceschi, Maurizio M.; Piazze, Juan; Ruozi-Berretta, Angelo; Cosmi, Erich; Cerekja, Albana; Maranghi, Luca; Cosmi, Ermelando V.

doi:10.1515/jpm.2003.031

Cited by 30 publications

(21 citation statements)

References 15 publications

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“…An initial search of 398 citations, identified 7 primary articles 10,11,[22][23][24][25][26] 24 where no such record was found. Five studies were performed on high risk pregnancies 10,11,23,25,26 , one on low-risk 24 and one included both high and low risk populations 22 .…”

Section: Resultsmentioning

confidence: 99%

“…Five studies were performed on high risk pregnancies 10,11,23,25,26 , one on low-risk 24 and one included both high and low risk populations 22 . Amongst high-risk pregnancies, 4 studies observed a predictive relationship of STV for neonatal acidaemia in intrauterine growth restricted (IUGR) fetuses 10,11,23,26 .…”

Section: Resultsmentioning

confidence: 99%

“…It is well understood that STV increases as gestational age progresses, reflecting development of fetal autonomic nervous system (ANS) and maturation of vagal innervation to the fetal heart 34,35 . None of the studies, except for one 22 divided their study group into subgroups according to gestational age. Furthermore, all studies included in this review, except for two 10,26 measured STV for a duration of 40 minutes or even less.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

“Does short-term variation in fetal heart rate predict fetal acidaemia?” A systematic review and meta-analysis

Kapaya¹,

Jacques

Rahaim³

et al. 2016

The Journal of Maternal-Fetal & Neonatal Medicine

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

“Does short-term variation in fetal heart rate predict fetal acidaemia?” A systematic review and meta-analysis

Kapaya¹,

Jacques

Rahaim³

et al. 2016

The Journal of Maternal-Fetal & Neonatal Medicine

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“…STV is the most extensively studied parameter of computerised CTG, showing correlation with the presence of metabolic acidosis (Pincus 1991;Anceschi et al 2003;Serra et al 2008). In general, large variability reflects a healthy ANS and also normal activity of chemoreceptors, baroreceptors and cardiac responsiveness, while a decreased STV is associated with impending deterioration of foetal oxygen supply and finally intrauterine death.…”

Section: Discussionmentioning

confidence: 99%

Computerised analysis of antepartum foetal heart parameters: New reference ranges

Giuliano

Annunziata

Esposito

et al. 2016

Journal of Obstetrics and Gynaecology

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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 þ 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 ¼ À.65) and LF (r ¼ À.87) showed a statistically significant reduction (p < .05) with gestational age. STV (r ¼ .59), LTI (r ¼ .69), Delta (r ¼ .67), and MF (r ¼ .88) showed a statistically significant increase (p < .05) with gestational age. In contrast, for ApEn (r ¼ À.098), HF (r ¼ .14) and LF/(HF þ MF) ratio (r ¼ À.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.

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“…Neuere Studien zeigen, dass bei einer Kurzzeitvariabilität von > 5,1 ms bei Feten vor der 34. SSW kein Nabelschnur-pH < 7,0 zu erwarten ist [11].…”

Section: Diskussionunclassified

Die Kurzzeitvariabilität der fetalen Herzfrequenz - Therapeutisches Management und Auswirkungen auf die Herzfrequenzvariabilität bei einer drohenden Entgleisung einer chronischen Hypertonie in der 27. SSW

Schiermeier

Westhof²,

Leeuwen³

et al. 2006

Z Geburtshilfe Neonatol

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The non-stress test is the most commonly used method in prepartal surveillance. Due to the high intra- and interobserver variability involved in subjective evaluation, the computer-assisted analysis is gaining in importance. Some studies have shown that low foetal STV may be associated with higher rates of acidosis and intrauterine mortality. Other factors influencing STV are largely not known. Low STV has been found as an effect of cortisone. In this case report, we illustrate the relevance of haemodilation therapy in the context of essential hypertension in the 27 (th) week of gestation and its effect on SVT. The treatment led to a prolongation of pregnancy to the 32 (nd) week. At the start of treatment STV increased to 4.5 ms and dropped back below this value concurrently with centralisation as documented by Doppler sonography. STV correlated clearly with the foetal condition. However, STV is dependent on numerous factors which should be investigated in further studies in order to determine appropriate reference values.

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Validity of short term variation (STV) in detection of fetal acidemia

Abstract: In cases < 34 weeks' gestation, STV values below 4.9 msec and 5.1 msec are able to predict umbilical artery pH < 7.0 and PCO2 > 60 mmHg, respectively.

Cited by 30 publications

References 15 publications

“Does short-term variation in fetal heart rate predict fetal acidaemia?” A systematic review and meta-analysis

“Does short-term variation in fetal heart rate predict fetal acidaemia?” A systematic review and meta-analysis

Computerised analysis of antepartum foetal heart parameters: New reference ranges

Die Kurzzeitvariabilität der fetalen Herzfrequenz - Therapeutisches Management und Auswirkungen auf die Herzfrequenzvariabilität bei einer drohenden Entgleisung einer chronischen Hypertonie in der 27. SSW

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