Carboxyhemoglobin levels in umbilical cord blood of women with pre-eclampsia and intrauterine growth restriction
-
Kamran Yusuf
,
Majeeda Kamaluddeen
Abstract
Objective: Pre-eclampsia (PE) and intrauterine growth restriction (IUGR) are associated with abnormal placentation. Heme oxygenase (HO) and carbon monoxide (CO) are involved in normal placental development and function and vasomotor control in the placenta. The objective of our study was to measure CO levels, as assessed by carboxyhemoglobin (COHb) levels in the umbilical cord arterial blood of women with PE, normotensive IUGR (<10th percentile for birth weight), and normotensive pregnancies with appropriate-for-gestational age (AGA) infants.
Design and methods: We prospectively analyzed COHb levels in the umbilical arterial blood of women with PE, normotensive IUGR, and normotensive AGA pregnancies. Exclusion criteria included cigarette smoke exposure, hemolytic disorders, a positive direct anti-globulin test, chronic hypertension, fever, and any significant medical illness. COHb levels were measured using the ABL 725 blood gas analyzer.
Results: There were 41 women in the normotensive AGA group, 42 in the PE group, and 36 in the normotensive IUGR group. Maternal age, mode of delivery, gravidity, parity, and gender of the infants were similar in the three groups. Gestational age and birth weight were significantly higher in the normotensive AGA group compared with the other two groups. COHb levels were significantly lower in the PE group compared with the normotensive AGA group (0.38±0.06% vs. 0.77±0.11%, P<0.05). COHb levels, although lower in the normotensive IUGR group compared with the normotensive AGA group, did not reach statistical significance.
Conclusion: Our data suggests the HO-CO system may have a role in the pathogenesis of PE. We also, for the first time, provide information on umbilical arterial COHb levels in normotensive IUGR pregnancies.
©2012 by Walter de Gruyter Berlin Boston
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- Congress Calendar
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- WAPM Newsletter
- WAPM Newsletter
Articles in the same Issue
- Masthead
- Masthead
- Original Articles – Obstetrics
- Vaginal progesterone to prevent preterm birth in multiple pregnancy: a randomized controlled trial
- Association of high-sensitivity C-reactive protein serum levels in early pregnancy with the severity of preeclampsia and fetal birth weight
- High-fidelity simulation increases obstetric self-assurance and skills in undergraduate medical students
- Resident consultant presence in labour ward after midnight – a retrospective cohort study of 5318 deliveries
- Carboxyhemoglobin levels in umbilical cord blood of women with pre-eclampsia and intrauterine growth restriction
- Labour epidural analgesia and anti-infectious management of the neonate: a meta-analysis
- What about ST waveform analysis signal quality in the second stage of labor? A case-control study
- A curriculum to teach and evaluate resident skills in the management of postpartum hemorrhage
- Placental transfer of clarithromycin in human pregnancies with preterm premature rupture of membranes
- Stepwise sequential screening for Down’s syndrome (combined test associated with modified genetic sonography) in pregnant women with low risk for chromosomal disorders
- Original Articles – Fetus
- Mode of anaesthesia on fetal acid-base status at caesarean section
- Development of integrative autonomic nervous system function: an investigation based on time correlation in fetal heart rate patterns
- Original Articles – Newborn
- Guttus, tiralatte and téterelle: a history of breast pumps
- Does docosahexaenoic acid (DHA) status in pregnancy have any impact on postnatal growth? Six-year follow-up of a prospective randomized double-blind monocenter study on low-dose DHA supplements
- The evolution of risk factors for respiratory syncytial virus-related hospitalisation in infants born at 32–35 weeks’ gestational age: time-based analysis using data from the FLIP-2 study
- Short Communications
- Low placental weight and risk for fetal distress at birth
- Electrical pacemaker as a safe and feasible method for decreasing the uterine contractions of human preterm labor
- Congress Calendar
- Congress Calendar
- WAPM Newsletter
- WAPM Newsletter
