Red Cell Mass During and After Normal Pregnancy

Taylor, David; Lind, T.

doi:10.1111/j.1471-0528.1979.tb10611.x

Cited by 138 publications

(86 citation statements)

References 14 publications

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“…Previous studies have used Hb cut-off values of either 10 gadl (Lao et al, 1996), 11 gadl (Singh et al, 1998) or 12 gadl (Kuvibidila et al, 1994). Although it has been suggested that the haemodilution effect of pregnancy is still apparent at 6 ± 8 weeks postpartum (Taylor & Lind, 1979), our ®ndings showed that the mean Hb level of subjects had increased to ! 12 gadl by 6 weeks postpartum and remained fairly constant until 6 months postpartum.…”

Section: Discussioncontrasting

confidence: 55%

Postnatal iron status of Hong Kong Chinese women in a longitudinal study of maternal nutrition

et al. 2001

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Objective: To report postnatal iron nutritional status of Hong Kong Chinese women during the ®rst 6 months postpartum. Design and subjects: A longtitudinal study examining postnatal calcium and iron status of Hong Kong Chinese breastfeeding and formula-feeding women was conducted during 1998. Postpartum women aged 20 ± 40 y, with no bone or blood disorders were recruited and interviewed at 0 (baseline), 2, 6 weeks, 3 and 6 months postpartum. Dietary intake was assessed by a 3 day dietary record and cross checked by a 24 h recall. Complete blood count and serum ferritin level were measured to assess anaemia and iron status. In this report, subjects were divided into an anaemic group (haemoglobin level`10 gadl) and a non-anaemic group (haemoglobin level ! 10 gadl) according to baseline haemoglobin levels. Results: At baseline, 13a47 (27.7%) subjects were anaemic. Two of these 13 anaemic subjects were still anaemic at 3 and 6 months postpartum. Anaemic subjects showed signi®cantly (P`0.01) greater amounts of blood loss and a higher rate of primary postpartum haemorrhage than the non-anaemic subjects. Daily food intake and dietary nutrient intake did not differ signi®cantly between the two groups. During the ®rst 6 weeks postpartum, subjects in both groups consumed more poultry and egg, and comparable amounts of meat, compared with women in the Hong Kong general population. Iron and vitamin C intakes for the majority of subjects reached 60% of the US Recommended Daily Allowances. Regression analysis suggested that the rate of change in haemoglobin level in the ®rst 6 weeks postpartum was positively correlated with baseline MCV level and serum ferritin level, but negatively correlated with baseline haemoglobin level. Conclusions: Blood loss at delivery is an important factor for postpartum anaemia. Postnatal recovery of iron status of this group of women appeared to be more related to physiological factors than to dietary factors. The role of diet as well as other physiological changes in postpartum women requires further investigation. Finding ways to minimise blood loss at delivery could be the most practical strategy to reduce the rate of postpartum anaemia.

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Section: Discussioncontrasting

confidence: 55%

Postnatal iron status of Hong Kong Chinese women in a longitudinal study of maternal nutrition

et al. 2001

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“…Later, it again decreases. Significant elevation has been documented between measurements of hemoglobin taken at 6-8 weeks postpartum and those taken at 4-6 months postpartum, indicating that it takes at least 4-6 months post pregnancy, to restore the physiological dip in hemoglobin to the nonpregnant values [7].…”

mentioning

confidence: 99%

Physiological Changes in Hematological Parameters During Pregnancy

Chandra

Tripathi

Mishra

et al. 2012

Indian J Hematol Blood Transfus

254

221

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“…An increase in the red cell mass during pregnancy has been reported [25] and we previously ascertained that the number of pump units in young erythrocytes is higher than that in old ones [15]. However, in this assay, neither the number nor function of the pump have any correlation with the mean corpuscular volume (data not shown).…”

Section: Discussionmentioning

confidence: 65%

Measurement of Erythrocyte Na,K-ATPase Activity in Normal Pregnant Women.

et al. 1993

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Abstract. To investigate the peripheral metabolic status during normal pregnancy, we measured the number of erythrocyte Na,K-ATPase units as well as the cation transport activity of the pump from 32 normal pregnant women and 12 normal controls. The number of pump units determined by maximal ouabain binding to erythrocyte in normal pregnancy was significantly higher than that in normal controls (mean±SEM: 0.52±0.03 vs. 0.39±0.04 pmol/1O9RBC, P

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Red Cell Mass During and After Normal Pregnancy

Cited by 138 publications

References 14 publications

Postnatal iron status of Hong Kong Chinese women in a longitudinal study of maternal nutrition

Postnatal iron status of Hong Kong Chinese women in a longitudinal study of maternal nutrition

Physiological Changes in Hematological Parameters During Pregnancy

Measurement of Erythrocyte Na,K-ATPase Activity in Normal Pregnant Women.

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