Relationship between the Number of Fetuses and the Blood Constituents of Beagles in Late Pregnancy.

Kaneko, Mineo; Nakayama, Hiroshi; Igarashi, Noriyuki; Hirose, Hisashi

doi:10.1292/jvms.55.681

Cited by 14 publications

(16 citation statements)

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“…The expected decrease in haematocrit before CS with an increase in litter size found in the current study is seven to eight times smaller than that found by Kaneko et al [6]. The small sample size in the study by Kaneko et al [6] may have resulted in a less precise estimation of the relationship between haematocrit and litter size.…”

Section: Discussioncontrasting

confidence: 84%

“…The small sample size in the study by Kaneko et al [6] may have resulted in a less precise estimation of the relationship between haematocrit and litter size. Although the current study shows that increased litter size results in a slightly lower haematocrit, the difference is of minimal clinical significance.…”

Section: Discussionmentioning

confidence: 94%

“…Kaneko et al [6] studied the effects of litter size on the extent of anaemia of pregnancy in 23 beagle dogs and observed a correlation between litter size and a decrease in haematocrit, haemoglobin concentration and red blood cell count. They reported a 1.1% decrease in haematocrit for each pup present.…”

Section: Discussionmentioning

confidence: 99%

“…In 1977 Concannon et al [2] reported that the haematocrit in 12 pregnant bitches was consistently lower than that of 12 non-pregnant bitches from Day 20 after the onset of oestrus onwards and continued to decline to reach a nadir of 30.6% (SD 0.8) by Day 60 to 62. In 1993 Kaneko et al [6] showed that the haematocrit of 23 beagles decreased from between 40% and 52% before pregnancy to between 28% and 42% at term and that the litter size had an influence on haematocrit [6]. Finally, in 2013, Dimço et al [7] reported a mean haematocrit of 45.4% (SD 3.6%) in 16 non-pregnant bitches and a mean of 41% (SD 4.9%) in 16 bitches of similar body weight and age in the last trimester of pregnancy.…”

Section: Introductionmentioning

confidence: 99%

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Hematocrit changes in healthy periparturient bitches that underwent elective cesarean section

2016

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Haematocrits were measured before each of 406 caesarean sections performed on 324 bitches at term and again following crystalloid fluid therapy administered at 35 ml/kg over 1½ to 2 h starting from induction. The mean haematocrit was 44.2% (95% CI 43.8 to 44.6%) before caesarean section and 37.8% (95% CI 37.3 to 38.2%) following caesarean section and fluid therapy, with a mean decrease of 6.4 percentage points (95% CI 6.1 to 6.7%) over all 406 caesarean sections. These results provide the clinician with clear guidelines of the normal expected ranges of haematocrits in bitches before and after caesarean section. Results of this study show that bitches have haematocrits at term that are at the lower end of the normal reference ranges for non-pregnant dogs and that there is no true anaemia of pregnancy. It is therefore suggested that if late term bitches present with anaemia, other causes besides pregnancy should be considered.1

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Section: Discussioncontrasting

confidence: 84%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hematocrit changes in healthy periparturient bitches that underwent elective cesarean section

2016

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“…The magnitude of this anemia correlates with increasing fetal numbers. 6 Blood loss during normal parturition is buffered by this increased blood volume and red cell mass. Pregnancy-associated anemia will influence the use of packed cell volume as an index of dehydration.…”

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confidence: 99%