Different corticosteroids and regimens for accelerating fetal lung maturation for women at risk of preterm birth

Brownfoot, Fiona; Gagliardi, Daniela I; Bain, Emily; Middleton, Philippa; Crowther, Caroline A

doi:10.1002/14651858.cd006764.pub3

Cited by 202 publications

(201 citation statements)

References 54 publications

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“…Although dexamethasone is characterized by a greater affinity to glucocorticoid receptors, betamethasone has a longer half-life [120]. Betamethasone is superior for the prevention of RDS in comparison to dexamethasone; but not for reduction of intraventricular hemorrhage [121]. The combined use of these two corticosteroids has not been tested.…”

Section: Corticosteroidsmentioning

confidence: 99%

Mid-trimester preterm premature rupture of membranes (PPROM): etiology, diagnosis, classification, international recommendations of treatment options and outcome

Tchirikov

Schlabritz‐Loutsevitch

Mäher

et al. 2017

Journal of Perinatal Medicine

192

153

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Mid-trimester preterm premature rupture of membranes (PPROM), defined as rupture of fetal membranes prior to 28 weeks of gestation, complicates approximately 0.4%-0.7% of all pregnancies. This condition is associated with a very high neonatal mortality rate as well as an increased risk of long-and short-term severe neonatal morbidity. The causes of the mid-trimester PPROM are multifactorial. Altered membrane morphology including marked swelling and disruption of the collagen network which is seen with PPROM can be triggered by bacterial products or/and pro-inflammatory cytokines. Activation of matrix metalloproteinases (MMP) have been implicated in the mechanism of PPROM. The propagation of bacteria is an important contributing factor not only in PPROM, but also in adverse neonatal and maternal outcomes after PPROM. Inflammatory mediators likely play a causative role in both disruption of fetal membrane integrity and activation of uterine contraction. The "classic PPROM" with oligo/anhydramnion is associated with a short latency period and worse neonatal outcome compared to similar gestational aged neonates delivered without antecedent PPROM. The "high PPROM" syndrome is defined as a defect of the chorio-amniotic membranes, which is not located over the internal cervical os. It may be associated with either a normal or reduced amount of amniotic fluid. It may explain why sensitive biochemical tests such as the Amniosure (PAMG-1) or IGFBP-1/alpha fetoprotein test can have a positive result without other signs of overt ROM such as fluid leakage with Valsalva. The membrane defect following fetoscopy also fulfils the criteria for "high PPROM" syndrome. In some cases, the rupture of only one membrane -either the chorionic or amniotic membrane, resulting in "pre-PPROM" could precede "classic PPROM" or "high PPROM". The diagnosis of PPROM is classically established by identification of nitrazine positive, fern positive watery leakage from the cervical canal observed during in specula investigation. Other more recent diagnostic tests include the vaginal swab assay for placental alpha macroglobulin-1 test or AFP and IGFBP1. In some rare cases amniocentesis and infusion of indigo carmine has been used to confirm the diagnosis of PPROM. The management of the PPROM requires balancing the potential neonatal benefits from prolongation of the pregnancy with the risk of intraamniotic infection and its consequences for the mother and infant. Close monitoring for signs of chorioamnionitis (e.g. body temperature, CTG, CRP, leucocytes, IL-6, procalcitonine, amniotic fluid examinations) is necessary to minimize the risk of neonatal and maternal complications. In addition to delayed delivery, broad spectrum antibiotics of penicillin or cephalosporin group and/or macrolide and corticosteroids have been show to improve neonatal outcome [reducing risk of chorioamnionitis (average risk ratio (RR) = 0.66), neonatal infections (RR = 0.67) and abnormal ultrasound scan of neonatal brain (RR = 0.67)]. The positive effect of continuo...

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Section: Corticosteroidsmentioning

confidence: 99%

Mid-trimester preterm premature rupture of membranes (PPROM): etiology, diagnosis, classification, international recommendations of treatment options and outcome

Tchirikov

Schlabritz‐Loutsevitch

Mäher

et al. 2017

Journal of Perinatal Medicine

192

153

View full text Add to dashboard Cite

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“…Namely, the Cochrane Collaboration in 2006, 9 which was an extensive document to assess the effects of maternal antenatal corticosteroids on the mother, the fetus, the neonate, and the child; the Cochrane Collaboration in 2007, 10 which evaluated the effectiveness and safety of repeat courses of corticosteorids; and the Cochrane Collaboration in 2008, 11 which elaborated on the effects of various types and dosing regimens of corticosteroids.…”

Section: Antenatal Corticosteroidsmentioning

confidence: 99%

Use and attitudes of obstetricians toward 3 high-risk interventions in MFMU Network hospitals

Bousleiman¹,

Rice²,

Moss³

et al. 2015

American Journal of Obstetrics and Gynecology

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OBJECTIVE We sought to evaluate the frequency of, and factors associated with, the use of 3 evidence-based interventions: antenatal corticosteroids for fetal lung maturity, progesterone for prevention of recurrent preterm birth, and magnesium sulfate for fetal neuroprotection. STUDY DESIGN A self-administered survey was conducted from January through May 2011 among obstetricians from 21 hospitals that included 30 questions regarding their knowledge, attitudes, and practice of the 3 evidence-based interventions and the 14-item short version of the Team Climate for Innovation survey. Frequency of use of each intervention was ascertained from an obstetrical cohort of women between January 2010 and February 2011. RESULTS A total of 329 obstetricians (74% response rate) who managed 16,946 deliveries within the obstetrical cohort participated in the survey. More than 90% of obstetricians reported that they incorporated each intervention into routine practice. Actual frequency of administration in women eligible for the treatments was 93% for corticosteroids, 39% for progesterone, and 71%formagnesiumsulfate. Provider satisfaction with quality of treatment evidence was 97% for corticosteroids, 82% for progesterone, and 57% for magnesium sulfate. Obstetricians perceived that barriers to treatment were most frequent for progesterone (76%), 30% for magnesium sulfate, and 17% for corticosteroids. Progesterone use was more frequent among patients whose provider reported the quality of the evidence was above average to excellent compared with poor to average (42% vs 25%, respectively; P < .001), and they were satisfied with their knowledge of the intervention (41%vs 28%; P = .02), and was less common among patients whose provider reported barriers to hospital or pharmacy drug delivery (31% vs 42%; P = .01). Corticosteroid administration was more common among patients who delivered at hospitals with 24 hours a day–7 days a week maternal-fetal medicine specialist coverage (93% vs 84%; P = .046), CONCLUSION Obstetricians in Maternal-Fetal Medicine Units Network hospitals frequently use these evidence-based interventions; however, progesterone usewas found to be related to their assessment of evidence quality. Neither progesterone nor the other interventions were associated with overall climate of innovation within a hospital as measured by the Team Climate for Innovation. National Institutes of Health Consensus Conference Statements may also have an impact on use; there is such a statement for antenatal corticosteroids but not for progesterone for preterm prevention or magnesium sulfate for fetal neuroprotection.

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“…168 A later systematic review found reduced risk for combined serious outcome including NEC, with repeat doses of antenatal steroids compared to a single dose, 169 and a meta-analysis from 2013 found no significant difference between sorts of corticosteroids, ways of administration or regimen, although with just one or two studies addressing each outcome. 170 ➢ Caesarean section. Given the importance of colonisation with normal intestinal flora for the maturation of the neonatal intestine, caesarean section might be expected to increase the risk for NEC.…”

Section: Pathophysiologymentioning

confidence: 99%

Necrotising Enterocolitis - epidemiology and imaging

Ahle¹

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Different corticosteroids and regimens for accelerating fetal lung maturation for women at risk of preterm birth

Cited by 202 publications

References 54 publications

Mid-trimester preterm premature rupture of membranes (PPROM): etiology, diagnosis, classification, international recommendations of treatment options and outcome

Mid-trimester preterm premature rupture of membranes (PPROM): etiology, diagnosis, classification, international recommendations of treatment options and outcome

Use and attitudes of obstetricians toward 3 high-risk interventions in MFMU Network hospitals

Necrotising Enterocolitis - epidemiology and imaging

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