Reference values for fetal heart rate in cattle in the first trimester of pregnancy

Lea Lénárt, Marcel Taverne, Peter Wolleswinkel, Zoltán Gubik, László Molnár, O. Szenci

Research output: Contribution to journalArticle

Abstract

The aim of this study was to create a fetal heart rate (FHR) reference curve for singleton bovine fetuses in the first trimester of gestation and to determine its possible relationship with the outcome of pregnancy. Forty-eight Holstein-Friesian cows with one fetus and five cows with twins were used. Fetal heart beatings were recorded on videotape during transrectal scanning with a 5 and/or 7.5 MHz linear array transducer on a weekly basis between Days 40 and 95 of gestation. FHR was calculated by averaging the results of five counts of the same record by the same observer. For singleton pregnancies, a reference curve was created using the mean, the standard deviation (SD) and the 5th and 95th percentiles. The FHR increased from Days 40-46 (173 beats/min) to Days 61-67 (183 beats/min). After a peak, the FHR decreased slowly until Days 89-95 (175 beats/min), while the SD increased. There was no significant difference between singleton and twin fetuses. in the aborted and lost fetuses in twin gestation due to fetal reduction, both bradycardia and tachycardia were detected compared to the singleton pregnancy reference curve.

Original languageEnglish
Pages (from-to)274-281
Number of pages8
JournalActa veterinaria Hungarica
Volume67
Issue number2
DOIs
Publication statusPublished - Jun 1 2019

Fingerprint

Fetal Heart Rate
First Pregnancy Trimester
normal values
heart rate
Reference Values
pregnancy
fetus
Pregnancy
cattle
Fetus
Multifetal Pregnancy Reduction
Aborted Fetus
cows
Fetal Heart
pregnancy outcome
Videotape Recording
Pregnancy Outcome
Bradycardia
Transducers
Tachycardia

Keywords

  • dairy cattle
  • fetal heart rate
  • singleton and twin pregnancy
  • Ultrasonography

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Reference values for fetal heart rate in cattle in the first trimester of pregnancy. / Lénárt, Lea; Taverne, Marcel; Wolleswinkel, Peter; Gubik, Zoltán; Molnár, László; Szenci, O.

In: Acta veterinaria Hungarica, Vol. 67, No. 2, 01.06.2019, p. 274-281.

Research output: Contribution to journalArticle

Lénárt, Lea ; Taverne, Marcel ; Wolleswinkel, Peter ; Gubik, Zoltán ; Molnár, László ; Szenci, O. / Reference values for fetal heart rate in cattle in the first trimester of pregnancy. In: Acta veterinaria Hungarica. 2019 ; Vol. 67, No. 2. pp. 274-281.
@article{91b843df8ca947fa9f111edde0654bda,
title = "Reference values for fetal heart rate in cattle in the first trimester of pregnancy",
abstract = "The aim of this study was to create a fetal heart rate (FHR) reference curve for singleton bovine fetuses in the first trimester of gestation and to determine its possible relationship with the outcome of pregnancy. Forty-eight Holstein-Friesian cows with one fetus and five cows with twins were used. Fetal heart beatings were recorded on videotape during transrectal scanning with a 5 and/or 7.5 MHz linear array transducer on a weekly basis between Days 40 and 95 of gestation. FHR was calculated by averaging the results of five counts of the same record by the same observer. For singleton pregnancies, a reference curve was created using the mean, the standard deviation (SD) and the 5th and 95th percentiles. The FHR increased from Days 40-46 (173 beats/min) to Days 61-67 (183 beats/min). After a peak, the FHR decreased slowly until Days 89-95 (175 beats/min), while the SD increased. There was no significant difference between singleton and twin fetuses. in the aborted and lost fetuses in twin gestation due to fetal reduction, both bradycardia and tachycardia were detected compared to the singleton pregnancy reference curve.",
keywords = "dairy cattle, fetal heart rate, singleton and twin pregnancy, Ultrasonography",
author = "Lea L{\'e}n{\'a}rt and Marcel Taverne and Peter Wolleswinkel and Zolt{\'a}n Gubik and L{\'a}szl{\'o} Moln{\'a}r and O. Szenci",
year = "2019",
month = "6",
day = "1",
doi = "10.1556/004.2019.028",
language = "English",
volume = "67",
pages = "274--281",
journal = "Acta Veterinaria Hungarica",
issn = "0236-6290",
publisher = "Akademiai Kiado",
number = "2",

}

TY - JOUR

T1 - Reference values for fetal heart rate in cattle in the first trimester of pregnancy

AU - Lénárt, Lea

AU - Taverne, Marcel

AU - Wolleswinkel, Peter

AU - Gubik, Zoltán

AU - Molnár, László

AU - Szenci, O.

PY - 2019/6/1

Y1 - 2019/6/1

N2 - The aim of this study was to create a fetal heart rate (FHR) reference curve for singleton bovine fetuses in the first trimester of gestation and to determine its possible relationship with the outcome of pregnancy. Forty-eight Holstein-Friesian cows with one fetus and five cows with twins were used. Fetal heart beatings were recorded on videotape during transrectal scanning with a 5 and/or 7.5 MHz linear array transducer on a weekly basis between Days 40 and 95 of gestation. FHR was calculated by averaging the results of five counts of the same record by the same observer. For singleton pregnancies, a reference curve was created using the mean, the standard deviation (SD) and the 5th and 95th percentiles. The FHR increased from Days 40-46 (173 beats/min) to Days 61-67 (183 beats/min). After a peak, the FHR decreased slowly until Days 89-95 (175 beats/min), while the SD increased. There was no significant difference between singleton and twin fetuses. in the aborted and lost fetuses in twin gestation due to fetal reduction, both bradycardia and tachycardia were detected compared to the singleton pregnancy reference curve.

AB - The aim of this study was to create a fetal heart rate (FHR) reference curve for singleton bovine fetuses in the first trimester of gestation and to determine its possible relationship with the outcome of pregnancy. Forty-eight Holstein-Friesian cows with one fetus and five cows with twins were used. Fetal heart beatings were recorded on videotape during transrectal scanning with a 5 and/or 7.5 MHz linear array transducer on a weekly basis between Days 40 and 95 of gestation. FHR was calculated by averaging the results of five counts of the same record by the same observer. For singleton pregnancies, a reference curve was created using the mean, the standard deviation (SD) and the 5th and 95th percentiles. The FHR increased from Days 40-46 (173 beats/min) to Days 61-67 (183 beats/min). After a peak, the FHR decreased slowly until Days 89-95 (175 beats/min), while the SD increased. There was no significant difference between singleton and twin fetuses. in the aborted and lost fetuses in twin gestation due to fetal reduction, both bradycardia and tachycardia were detected compared to the singleton pregnancy reference curve.

KW - dairy cattle

KW - fetal heart rate

KW - singleton and twin pregnancy

KW - Ultrasonography

UR - http://www.scopus.com/inward/record.url?scp=85068819095&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85068819095&partnerID=8YFLogxK

U2 - 10.1556/004.2019.028

DO - 10.1556/004.2019.028

M3 - Article

VL - 67

SP - 274

EP - 281

JO - Acta Veterinaria Hungarica

JF - Acta Veterinaria Hungarica

SN - 0236-6290

IS - 2

ER -