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Clinical and Experimental Obstetrics & Gynecology  2014, Vol. 41 Issue (5): 507-511    DOI: 10.12891/ceog17322014
Original Research Previous articles | Next articles
Prolonged saltatory fetal heart rate pattern leading to newborn metabolic acidosis
I. Nunes1, D. Ayres-de-Campos1, *(), A. Kwee2, K. G Rosén3
1Department of Obstetrics and Gynecology, School of Medicine, University of Porto, S. Joao Hospital, Institute of Biomedical Engineering, Porto (Portugal)
2Department of Obstetrics and Gynaecology, University Medical Centre Utrecht, Wilhelmina Children’s Hospital, Utrecht (The Netherlands)
3Department of Engineering, University of Borås, Borås (Sweden)
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Abstract  
Purpose: The saltatory pattern, characterized by wide and rapid oscillations of the fetal heart rate (FHR), remains a controversial entity. The authors sought to evaluate whether it could be associated with an adverse fetal outcome. Material and Methods: The authors report a case series of four saltatory patterns occurring in the last 30 minutes before birth in association with cord artery metabolic acidosis, obtained from three large databases of internally acquired FHR tracings. The distinctive characteristics of this pattern were evaluated with the aid of a computer system. Results: All cases were recorded in uneventful pregnancies, with normal birthweight singletons, born vaginally at term. The saltatory pattern lasted between 23 and 44 minutes, exhibited a mean oscillatory amplitude of 45.9 to 80.0 beats per minute (bpm) and a frequency between four and eight cycles per minute. Conclusions: A saltatory pattern exceeding 20 minutes can be associated with the occurrence of fetal metabolic acidosis.
Key words:  Heart rate      Fetal      Cardiotocography      Signal processing      Computer- assisted      Fetal hypoxia      Saltatory pattern     
Published:  10 October 2014     
*Corresponding Author(s):  D. AYRES-DE-CAMPOS     E-mail:  dcampos@med.up.pt

Cite this article: 

I. Nunes, D. Ayres-de-Campos, A. Kwee, K. G Rosén. Prolonged saltatory fetal heart rate pattern leading to newborn metabolic acidosis. Clinical and Experimental Obstetrics & Gynecology, 2014, 41(5): 507-511.

URL: 

https://ceog.imrpress.com/EN/10.12891/ceog17322014     OR     https://ceog.imrpress.com/EN/Y2014/V41/I5/507

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