Comparison of the Effects of Corticosteroids in Late Preterm Pregnancy at Buddhasothorn Hospital

Main Article Content

Yuttana Chanwaro

Abstract

Background: Preterm birth is a significant factor influencing the morbidity and mortality rates of newborns. Common problems can be associated with complications of the respiratory system. The administration of corticosteroids in women with threatened late preterm delivery can help stimulate fetal lung maturity. Furthermore, corticosteroids have been shown to exhibit efficiency capacity when used for preterm labor and delivery before 34 weeks of gestation. Thus, the researcher endeavored to study about corticosteroids efficiency for preterm labor and delivery after 34 weeks to decrease complications in premature babies. As a result, the developmental quality of mothers and infants can be enhanced moving forward.


Objective: To compare the results and effects between 4 shots of corticosteroid injections group and inexperienced group in late preterm infants (34-before 37 weeks gestational age).


Materials and methods: This research was a cohort study accomplished by collecting data from medical records. A total of 249 persons comprised the retrospective study sample of pregnant women during 34 weeks and before 37 weeks of gestational age. There are 4 shots of corticosteroids injections group and an inexperienced group, comprising 119 persons and 130 persons, respectively. Moreover, comparison was carried out in terms of respiratory complications such as respiratory distress, Transient tachypnea of the newborn, Severe Sepsis, Jaundice, Hypoglycemia, etc.


Results: From the study, the results revealed that the pregnant women group who received  4 shots of corticosteroid injections showed a rate of neonatal respiratory distress that was statistically significant for 8 persons (6.7%) compared to 26 persons in the inexperienced group (20%) (p = 0.002, relative risk = 0.34, confidence interval = 0.16-0.17). Furthermore, respiratory distress syndrome, Transient tachypnea of the newborn did not show any difference or statistical significance in the results or other complications.


Conclusion: Administration of corticosteroids in late preterm pregnancies significantly decreased the rate of respiratory distress.

Article Details

Section
Original Article

References

Creasy RK, Resnik R, Iams JD, Lockwood CJ, Moore TR, Greene MF. Creasy and Resnik’s maternal-fetal medicine :principles and practice.7thed. Philadephia: Saunders;2014.

Cunningham FG, Leveno KJ, Bloom SL, Spong CY, Dashe JS, Hoffman BL,et al. editors. Williams obstetrics.24thed.New York: McGraw Hill; 2014.

Goldenberg RL, Culhane JF,Lams JD, Romero R. Epidemiology and causes of preterm birth. Lancet 2008;371:75-84.

Charoenwith T. Preterm labor and preterm delivery. In: Charoenwith T, Urphirojanakij B, Manothai S, Thanawattanacharoen S, Panyakamlert K, editors. Obstetric.4thed. Bangkok: O.S.Printing house, 2008. p. 317-27.

Travers CP, Clark RH, Spitzer AR, Das A, Garite TJ, Carlo WA.Exposure to any antenatal corticosteroids and outcomes in preterm infants by gestational ageprospective cohort study. BMJ [Internet]. 2017[cited 2019 Nov 12]; 356:j1039.Available from: https://www.bmj.com/content/bmj/356/bmj.j1039.full.pdf

Chawla S, Natarajan G, Shankaran S, Papas A, Stoll BJ, Carlo WA,et al. Association of neurodevelopmental outcomes and neonatal morbidities of extremely premature infants with differential exposure to antenatal steroids. JAMA Pediatr 2016;170:1164-72.

Porto AM, Coutinnho IC, Correia JB, Amorim MM. Effectiveness of antenatal corticosteroids in reducing respiratory disorders in late preterm infant:randomized clinical trial. BMJ 2011; 342:d1696.

Jain L. Respiratory morbidity in late-preterm infants :prevention in better than cure!.Am J Perinatol 2008;25:75-8.

Norman M, Piedvache A, Borch K,Huusom LD, Bonamy AE, Howell EA,et al. Association of short antenatal corticosteroid administration-to-birth intervals with survival and morbidity among very preterm infant: results from the EPICE cohort. JAMA Pediatr 2017;171:678-86.

Miracle X, Di Renzo GC, Stark A, Fanaroff A, Carbonell-Estrany X, Saling E. Guideline for the use of antenatal corticosteroids for fetal maturation. J Perinat Med 2008;36:191-6.

Souter V, Kauffman E, Marshall AJ, Katon JG. Assessing the potential impact of extending antenatal steroids to the late preterm period.Am J ObstetGynecol 2017;217:461.e1-7.

Gyamfi-Bannerman C, Thom EA, Blackwell SC, Tita AT, Reddy UM, Saade GR,et al. Antenatal betamethasone for woman at risk for late preterm delivery. N Engl J Med 2016;374:1311-20.

Yinon Y, Haas J, Mazaki-Tovi S, Lapidot N, Mazkereth R, Hourvitz A, et al. Should patients with documented fetal lung immaturity after 34 weeks of gestation be treated with steroids?. Am J ObstetGynnecol 2012;207:222.e1-4.

Balci O, Ozdemir S, Mahmoud AS, Acer A, Colakoglu MC. The effect of antenatal steroids on fetal lung maturation between the 34th and 36th week of pregnancy.GynecolObstet Invest 2010;70:95-9.

Committee on Obstetric Practice.Committee opinion no. 713 :atenatal corticosteroid therapy for fetal maturation.ObstetGynecol 2017;130:e102-9.

Shanks A, Gross G, Shim T, Allsworth J, Sadovsky Y, Bildirici l. Administration of steroids after 34 weeks of gestation enhances fetal lung maturity profiles. Am J ObstetGynecol 2010;203:47.e1-5.

Eriksson L, Haglund B, Ewald U, Odlind V, Kieler H. Health consequences of prophylactic exposure to antenatal corticosteroids among children born late preterm or term. Acta ObstetGynecolScand 2012;91:1415-21.

Attawattanakul N, Tansupswatdikul P. Effects of antenatal dexamethasone on respiratory distress in late preterm infant: arandomized controlled trial. Thai Journal of Obstetrics and Gynaecology 2015;23:25-33.