Antenatal Detection of Fetal Growth Restriction and Stillbirths Rate. (REPERE)
Antenatal Detection of Fetal Growth Restriction : Determinants and Consequences for Stillbirths Rate.
The main objective is to assess the role of antenatal detection of fetal growth restriction (FGR) on stillbirth, by a case-control study in a population-based sample of small for gestational age (SGA) livebirths and stillbirths in 3 French counties (Isère, Savoie and Haute-Savoie). SGA births will be defined as a birthweight below the 10th percentile of French customised birth weight curves.
Our secondary objectives are
- to identify determinants of antenatal detection of FGR among a representative sample of SGA births, with a special interest in the definition of FGR. Our hypothesis is that births who are SGA by customised birthweight curves and non-SGA by population birthweight curves, are not detected antenatally, despite the current strategy including the use of umbilical Doppler.
- to analyse prenatal care of a subsample of SGA stillbirths with and without detection of FGR by a confidential enquiry.
調査の概要
詳細な説明
Stillbirths will be identified by the RHEOP (Registre des Handicaps de l'Enfant et Observatoire Périnatal).
The RHEOP was created in 1988 in the Isère district in the Rhône-Alpes region of France. The area covered by the registry was enlarged to include two contiguous districts in 2005 (Savoie and Haute-Savoie). This registry includes all cases of childhood disability as well as all stillbirths to residents in these districts. Its objective is to monitor the trends in stillbirth and chid disability, and to identify conditions associated with these events. The three participating districts constitute a population-based sample of 30 000 births per year. The RHEOP registry uses the WHO definition of a stillbirth, i.e., "the birth of a baby with a birth weight of 500 g or 22 or more completed weeks of gestation who died before or during labor and birth". Its completeness is checked by matching its database with three data sources : results of placental examination and fetal autopsy, adjacent register of fetal anomalies, and regional reference center for prenatal diagnosis.
Stillbirths are identified in maternity hospitals thanks to collaborating midwifes and routinely collected data. Several specific investigators, who are trained nurses, midwives or physicians, complete a standardized form based on the medical record for each case.
For the purpose of the project, additional data will be collected allowing to describe prenatal care including ultrasound and Doppler examinations, and obstetrical management. Healthcare professionals (GP, midwife, obstetricians and gynecologists) will be solicited if data are missing in maternity medical records. SGA stillbirths in 2012 and 2013 will be included.
Consecutive SGA livebirths to residents in Isère, Savoie and Haute-Savoie, will be identified by the same way. Two months (probably october and november 2013)are approximately needed to record the sample size of controls.
研究の種類
入学 (予想される)
連絡先と場所
研究場所
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Albertville、フランス、73200
- CH Albertville-Moutiers
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Annecy、フランス、74374
- CH Annecy
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Annecy、フランス、74000
- Clinique Générale Annecy
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Annemasse、フランス、74100
- Polyclinique de Savoie Annemasse
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Bonneville、フランス、74107
- CHI Annemasse Bonneville
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Bourg Saint Maurice、フランス、73704
- CH Bourg Saint Maurice
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Bourgoin Jallieu、フランス、38300
- Clinique Saint Vincent de Paul Bourgoin Jallieu
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Bourgoin-Jallieu、フランス、38300
- Centre Hospitalier Bourgoin Jallieu
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Bron、フランス、69677
- Hôpital Femme Mère Enfant
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Chambéry、フランス、73000
- CH Chambery
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Echirolles、フランス、38432
- Clinique des Cèdres
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Grenoble、フランス、38000
- CHU Grenoble
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Grenoble、フランス、38000
- Clinique Mutualiste Eaux Claires
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Lyon、フランス、69317
- Hopital Croix Rousse
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Saint Martin d Hères、フランス、38400
- Clinique Belledonne
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Saint-Jean-de-Maurienne、フランス、73303
- CH Saint Jean de Maurienne
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Saint-Julien-en-Genevois、フランス、74164
- CH Sud Léman Valserine
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Sallanches、フランス、74700
- Hôpitaux du Mont Blanc
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Thonon-les-Bains、フランス、74203
- Hôpitaux du Léman
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Vienne、フランス、38209
- Centre Hospitalier Vienne
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Voiron、フランス、38506
- Centre Hospitalier Voiron
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
Births:
- Stillbirths (antepartum or intrapartum fetal death) (=Cases) or livebirths (=Controls)
- at or after 24 completed weeks of gestational age
- singletons
- to mothers residents in 1 of the 3 districts (Isère, Savoie, Haute-Savoie) of the RHEOP register
- SGA: birthweight below the 10th percentile of French customised birthweight curves)
Exclusion Criteria:
- Fetal deaths with date of death estimated being older than date of birth by at least 1 week
- Lethal congenital anomalies
研究計画
研究はどのように設計されていますか？
デザインの詳細
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
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SGA stillbirths (Cases)
Stillbirths, SGA births (below the 10th percentile of French customised birthweight curves), born in 2012-13, at or after 24 completed weeks of gestational age, without lethal congenital anomalies, to mothers residents in Isère, Savoie or Haute-Savoie
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FGR is considered as "identified" if:
他の名前：
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SGA livebirths (Controls)
Livebirths, SGA births (below the 10th percentile of French customised birthweight curves), born in 2013, at or after 24 completed weeks of gestational age, without lethal congenital anomalies, to mothers residents in Isère, Savoie or Haute-Savoie
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FGR is considered as "identified" if:
他の名前：
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Rate of antenatal detection of FGR
時間枠：baseline
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Crude and adjusted OR of stillbirth according to antenatal detection of FGR
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baseline
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Factors associated with lack of antenatal detection of FGR in a representative sample of SGA births
時間枠：baseline
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Crude and adjusted OR and 95% confidence intervals
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baseline
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fetal deaths of SGA newborns with and without antenatal detection of FGR
時間枠：baseline
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baseline
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協力者と研究者
協力者
捜査官
- 主任研究者：Anne Ego, MD PhD、University Hospital, Grenoble
- スタディチェア：Christine CANS, MD PHD、Registre Handicaps de l'Enfant et Observatoire Périnatal
- スタディディレクター：Jennifer Zeitlin, MD PHD、INSERM U953
出版物と役立つリンク
一般刊行物
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- Bricker L, Neilson JP, Dowswell T. Routine ultrasound in late pregnancy (after 24 weeks' gestation). Cochrane Database Syst Rev. 2008 Oct 8;(4):CD001451. doi: 10.1002/14651858.CD001451.pub3.
- Thornton JG, Hornbuckle J, Vail A, Spiegelhalter DJ, Levene M; GRIT study group. Infant wellbeing at 2 years of age in the Growth Restriction Intervention Trial (GRIT): multicentred randomised controlled trial. Lancet. 2004 Aug 7-13;364(9433):513-20. doi: 10.1016/S0140-6736(04)16809-8.
- Altman DG, Hytten FE. Intrauterine growth retardation: let's be clear about it. Br J Obstet Gynaecol. 1989 Oct;96(10):1127-32. doi: 10.1111/j.1471-0528.1989.tb03185.x. No abstract available.
- Pardi G, Marconi AM, Cetin I. Placental-fetal interrelationship in IUGR fetuses--a review. Placenta. 2002 Apr;23 Suppl A:S136-41. doi: 10.1053/plac.2002.0802.
- Kaufmann P SI. Placental development. In: Polin RA FW, eds, editor. Fetal and neonatal physiology. Philadelphia: WB Saunders, 1998:59-70.
- Baschat AA. Pathophysiology of fetal growth restriction: implications for diagnosis and surveillance. Obstet Gynecol Surv. 2004 Aug;59(8):617-27. doi: 10.1097/01.ogx.0000133943.54530.76.
- Hecher K, Snijders R, Campbell S, Nicolaides K. Fetal venous, intracardiac, and arterial blood flow measurements in intrauterine growth retardation: relationship with fetal blood gases. Am J Obstet Gynecol. 1995 Jul;173(1):10-5. doi: 10.1016/0002-9378(95)90161-2.
- Severi FM, Bocchi C, Visentin A, Falco P, Cobellis L, Florio P, Zagonari S, Pilu G. Uterine and fetal cerebral Doppler predict the outcome of third-trimester small-for-gestational age fetuses with normal umbilical artery Doppler. Ultrasound Obstet Gynecol. 2002 Mar;19(3):225-8. doi: 10.1046/j.1469-0705.2002.00652.x.
- Haws RA, Yakoob MY, Soomro T, Menezes EV, Darmstadt GL, Bhutta ZA. Reducing stillbirths: screening and monitoring during pregnancy and labour. BMC Pregnancy Childbirth. 2009 May 7;9 Suppl 1(Suppl 1):S5. doi: 10.1186/1471-2393-9-S1-S5.
- Imdad A, Yakoob MY, Siddiqui S, Bhutta ZA. Screening and triage of intrauterine growth restriction (IUGR) in general population and high risk pregnancies: a systematic review with a focus on reduction of IUGR related stillbirths. BMC Public Health. 2011 Apr 13;11 Suppl 3(Suppl 3):S1. doi: 10.1186/1471-2458-11-S3-S1.
- Alfirevic Z, Neilson JP. Doppler ultrasonography in high-risk pregnancies: systematic review with meta-analysis. Am J Obstet Gynecol. 1995 May;172(5):1379-87. doi: 10.1016/0002-9378(95)90466-2.
- Neilson JP, Alfirevic Z. Doppler ultrasound for fetal assessment in high risk pregnancies. Cochrane Database Syst Rev. 2000;(2):CD000073. doi: 10.1002/14651858.CD000073.
- GRIT Study Group. A randomised trial of timed delivery for the compromised preterm fetus: short term outcomes and Bayesian interpretation. BJOG. 2003 Jan;110(1):27-32. doi: 10.1016/s1470-0328(02)02514-4.
- Bais JM, Eskes M, Pel M, Bonsel GJ, Bleker OP. Effectiveness of detection of intrauterine growth retardation by abdominal palpation as screening test in a low risk population: an observational study. Eur J Obstet Gynecol Reprod Biol. 2004 Oct 15;116(2):164-9. doi: 10.1016/j.ejogrb.2004.01.037.
- Jahn A, Razum O, Berle P. Routine screening for intrauterine growth retardation in Germany: low sensitivity and questionable benefit for diagnosed cases. Acta Obstet Gynecol Scand. 1998 Jul;77(6):643-8. doi: 10.1034/j.1600-0412.1998.770611.x.
- Mattioli KP, Sanderson M, Chauhan SP. Inadequate identification of small-for-gestational-age fetuses at an urban teaching hospital. Int J Gynaecol Obstet. 2010 May;109(2):140-3. doi: 10.1016/j.ijgo.2009.11.023. Epub 2010 Feb 2.
- Lindqvist PG, Molin J. Does antenatal identification of small-for-gestational age fetuses significantly improve their outcome? Ultrasound Obstet Gynecol. 2005 Mar;25(3):258-64. doi: 10.1002/uog.1806.
- Ogundipe EM, Wolfe CD, Seed P, Gamsu HR. Does the antenatal detection of small-for-gestational-age babies influence their two-year outcomes? Am J Perinatol. 2000;17(2):73-81. doi: 10.1055/s-2000-9273.
- Fretts RC, Boyd ME, Usher RH, Usher HA. The changing pattern of fetal death, 1961-1988. Obstet Gynecol. 1992 Jan;79(1):35-9.
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研究の完了 (予想される)
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