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Maternal low molecular weight heparin versus sildenafil citrate for fetal growth restriction: a randomized, parallel groups, open-label clinical trial

Abstract

Objectives

To compare the effect of sildenafil citrate (SC) and low molecular weight heparin (LMWH) on neonatal birth weight (BW) and the fetoplacental blood flow in pregnancies with FGR.

Study design

A parallel groups, randomized clinical trial was conducted at a university hospital, between June 2017 and September 2018, involving 100 pregnant women with placental mediated FGR between 28 and 35 weeks of gestation who were randomly assigned to receive either SC or LMWH started at FGR diagnosis till delivery.

Results

The neonatal BW in LMWH group was higher than SC group (pā€‰<ā€‰0.000) with a longer time from randomization till delivery, LMWH group had significant improvement in Ut A PI, UA PI, and MCA PI compared with SC treated group with p values 0.005, <0.000001, and 0.014, respectively.

Conclusion

The neonatal BW, time from randomization to delivery, and fetoplacental blood flow indices were significantly better with LMWH use compared with SC.

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References

  1. Yu YH, Shen LY, Zou H, Wang ZJ, Gong SP. Heparin for patients with growth restricted fetus: a prospective randomized controlled trial. J Matern Fetal Neonatal Med. 2010;23:980ā€“7. https://doi.org/10.3109/14767050903443459.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  2. Abd El-Wahed MA, El-Farghali OG, ElAbd HSA, El-Desouky ED, Hassan SM. Metabolic derangements in IUGR neonates detected at birth using UPLC-MS. Egypt J Med Hum Genet. 2017;18:281ā€“7. https://doi.org/10.1016/j.ejmhg.2016.12.002.

    ArticleĀ  Google ScholarĀ 

  3. Trapani A, GonƧalves LF, Trapani TF, Franco MJ, Galluzzo RN, Pires MM. Comparison between transdermal nitroglycerin and sildenafil citrate in intrauterine growth restriction: effects on uterine, umbilical and fetal middle cerebral artery pulsatility indices. Ultrasound Obstet Gynecol. 2016;48:61ā€“65. https://doi.org/10.1002/uog.15673.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  4. Cotechini T, Graham CH. Aberrant maternal inflammation as a cause of pregnancy complications: a potential therapeutic target. Placenta. 2015;36:960ā€“6. https://doi.org/10.1016/j.placenta.2015.05.016.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  5. Hossain N, Paidas MJ. Adverse pregnancy outcome, the uteroplacental interface, and preventive strategies. Semin Perinatol. 2007;31:208ā€“12. https://doi.org/10.1053/j.semperi.2007.05.002.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  6. Scifres CM, Nelson DM. Intrauterine growth restriction, human placental development and trophoblast cell death. J Physiol. 2009;587:3453ā€“8. https://doi.org/10.1113/jphysiol.2009.173252.

    ArticleĀ  CASĀ  PubMedĀ  PubMed CentralĀ  Google ScholarĀ 

  7. Figueras F, GratacĆ³s E. Update on the diagnosis and classification of fetal growth restriction and proposal of a stage-based management protocol. Fetal Diagn Ther. 2014;36:86ā€“98. https://doi.org/10.1159/000357592.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  8. Royal College of Obstetricians and Gynaecologists. The investigation and management of the smallā€“forā€“gestationalā€“age fetus. Green-top Guideline No. 31. London: RCOG; 2013.

    Google ScholarĀ 

  9. Sibley CP. Treating the dysfunctional placenta. J Endocrinol. 2017;234:81ā€“97. https://doi.org/10.1530/JOE-17-0185.

    ArticleĀ  Google ScholarĀ 

  10. Say L, GĆ¼lmezoglu AM, Hofmeyr GJ. Maternal nutrient supplementation for suspected impaired fetal growth. Cochrane Database Syst Rev. 2003;CD000148. https://doi.org/10.1002/14651858.CD000148.

  11. GĆ¼lmezoglu AM, Hofmeyr GJ. Maternal oxygen administration for suspected impaired fetal growth. Cochrane Database Syst Rev. 2000;CD000137. https://doi.org/10.1002/14651858.CD000137.

  12. Say L, GĆ¼lmezoglu AM, Hofmeyr GJ. Plasma volume expansion for suspected impaired fetal growth. Cochrane Database Syst Rev. 1996;CD000167. https://doi.org/10.1002/14651858.CD000167.

  13. Newnham JP, Godfrey M, Walters BJ, Phillips J, Evans SF. Low dose aspirin for the treatment of fetal growth restriction: a randomized controlled trial. Aust N Z J Obstet Gynaecol 1995;35:370 https://doi.org/10.1111/j.1479-828X.1995.tb02144.x.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  14. GĆ¼lmezoglu AM, Hofmeyr GJ. Bed rest in hospital for suspected impaired fetal growth. Cochrane Database Syst Rev. 2000;CD000034. https://doi.org/10.1002/14651858.CD000034.

  15. Resnik R. Fetal growth restriction: evaluation and management. UpToDate. 2018. Topic 6768 Version 77.0. https://www.uptodate.com/contents/fetal-growth-restriction-evaluation-and-management?source=history_widget#H8. Accessed 6 Apr 2018.

  16. Bose P, Black S, Kadyrov M, Weissenborn U, Neulen J, Regan L, et al. Heparin and aspirin attenuate placental apoptosis in vitro: Implications for early pregnancy failure. A J Obstet Gynecol. 2005;192:23ā€“30. https://doi.org/10.1016/j.ajog.2004.09.029.

    ArticleĀ  CASĀ  Google ScholarĀ 

  17. Oberkersch R, Attorresi AI, Calabrese GC. Low-molecular-weight heparin inhibition in classical complement activaton pathway during pregnancy. Thrombosis Res. 2010;125:e240ā€“5. https://doi.org/10.1016/j.thromres.2009.11.030.

    ArticleĀ  CASĀ  Google ScholarĀ 

  18. Dā€™Ippolito S, Di Nicuolo F, Marana R, Castellani R, Stinson J, Tersigni C, et al. Emerging non anticoagulant role of low molecular weight heparins on extravillous trophoblast functions and on heparin binding-epidermal growth factor and cystein-rich angiogenic inducer 61 expression. Fertil Steril. 2012;98:1028ā€“36. https://doi.org/10.1016/j.fertnstert.2012.06.042.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  19. Yinon Y, Ben Meir E, Margolis L, Lipitz S, Schiff E, Mazaki-Tovi S, et al. Low molecular weight heparin therapy during pregnancy is associated with elevated circulatory levels of placental growth factor. Placenta. 2015;36:121ā€“4. https://doi.org/10.1016/j.placenta.2014.12.008.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  20. Panda S, Das A. Sildenafil citrate in fatal growth restriction. J Reprod Infertil. 2014;15:168ā€“9.

    PubMedĀ  PubMed CentralĀ  Google ScholarĀ 

  21. Satterfield MC, Bazer FW, Spencer TE, Wu G. Sildenafil citrate treatment enhances amino acid availability in the conceptus and fetal growth in an ovine model of intrauterine growth restriction. J Nutr. 2010;140:251ā€“8. https://doi.org/10.3945/jn.109.114678.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  22. Oysto C, Stanley JL, Oliver MH, Bloomfield FH, Baker PN. Maternal administration of sildenafil citrate alters fetal and placental growth and fetalā€“placental vascular resistance in the growth-restricted ovine fetus. Hypertension. 2016;68:760ā€“7. https://doi.org/10.1161/HYPERTENSIONAHA.116.07662.

    ArticleĀ  Google ScholarĀ 

  23. Dastjerdi MV, Hosseini S, Bayani L. Sildenafil citrate and uteroplacental perfusion in fetal growth restriction. J Res Med Sci. 2012;17:632ā€“6.

    PubMedĀ  PubMed CentralĀ  Google ScholarĀ 

  24. El-Sayed MA, Saleh SA, Maher MA, Khidre AM. Utero-placental perfusion Doppler indices in growth restricted fetuses: effect of sildenafil citrate. J Matern Fetal Neonatal Med. 2018;31:1045ā€“50. https://doi.org/10.1080/147670c8.2017.1306509.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  25. Wareing M, Myers JE, Oā€™Hara M, Baker PN. Sildenafil citrate (Viagra) enhances vasodilatation in fetal growth restriction. J Clin Endocrinol Metab. 2005;90:2550ā€“5. https://doi.org/10.1210/jc.2004-1831.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  26. Sharp A, Cornforth C, Jackson R, Harrold J, Turner MA, Kenny LC, et al. Maternal sildenafil for severe fetal growth restriction (STRIDER): a multicentre, randomised, placebo-controlled, double-blind trial. Lancet Child Adolesc Health. 2018;2:93ā€“102. https://doi.org/10.1016/S2352-4642(17)30173-6. STRIDER group.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  27. Groom KM, McCowan LM, Mackay LK, Lee AC, Gardener G, Unterscheider J. STRIDER NZAus: a multicentre randomised controlled trial of sildenafil therapy in early-onset fetal growth restriction. BJOG. 2019;126:997ā€“1006. https://doi.org/10.1111/1471-0528.15658.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  28. Royal College of Obstetricians and Gynaecologists. Reducing the risk of venous thromboembolism during pregnancy and the puerperium. Green-top Guideline No. 37a. London: RCOG; 2015.

  29. American College of Obstetricians and Gynecologists. Moderate caffeine consumption during pregnancy. Committee Opinion No. 462. Obstet Gynecol. 2010;116:467ā€“8. https://doi.org/10.1097/AOG.0b013e3181eeb2a1.

    ArticleĀ  Google ScholarĀ 

  30. Prochaska JJ, Grossman W, Young-Wolff KC, Benowitz NL. Validity of self-reported adult secondhand smoke exposure. Tob Control. 2013;24:48ā€“53. https://doi.org/10.1136/tobaccocontrol-2013-051174.

    ArticleĀ  PubMedĀ  PubMed CentralĀ  Google ScholarĀ 

  31. Odibo AO, Riddick C, Pare E, Stamilio DM, Macones GA. Cerebro-placental Doppler ratio and adverse perinatal outcomes in intrauterine growth restriction: evaluating the impact of using gestational age-specific. J Ultrasound Med. 2005;24:1223ā€“8. https://doi.org/10.7863/jum.2005.24.9.1223.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  32. Gris JC, Chauleur C, Faillie JL, Baer G, MarĆØs P, Fabbro-Peray P, et al. Enoxaparin for the secondary prevention of placental vascular complications in women with abruptio placentae: the pilot randomised controlled NOH-AP trial. Thromb Haemost. 2010;104:771ā€“9. https://doi.org/10.1160/TH10-03-0167.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  33. Rey E, Garneau P, David M, et al. Dalteparin for the prevention of recurrence of placental-mediated complications of pregnancy in women without thrombophilia: a pilot randomized controlled trial. J Thromb Haemost. 2009;7:58ā€“64. https://doi.org/10.1111/j.1538-7836.2008.03230.x.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  34. Kupferminc M, Rimon E, Many A, Maslovitz S, Lessing JB, Gamzu R. Low molecular weight heparin versus no treatment in women with previous severe pregnancy complications and placental findings without thrombophilia. Blood Coagul Fibrinolysis. 2011;22:123ā€“6. https://doi.org/10.1097/MBC.0b013e328343315c.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  35. Groom KM, David AL. The role of aspirin, heparin, and other interventions in the prevention and treatment of fetal growth restriction. Am J Obstet Gynecol. 2017;218:829ā€“40. https://doi.org/10.1016/j.ajog.2017.11.565.

    ArticleĀ  Google ScholarĀ 

  36. Dodd JM, McLeod A, Windrim RC, Kingdom J. Antithrombotic therapy for improving maternal or infant health outcomes in women considered at risk of placental dysfunction. Cochrane Database Syst Rev. 2015; CD006780. https://doi.org/10.1002/14651858.CD006780.pub3.

  37. Yu YH, Shen LY, Wang ZJ, Zhang Y, Su GD. Effect of heparin on umbilical blood flow in patients with fetal growth retardation. Di Yi Jun Yi Da Xue Xue Bao. 2004;24:423ā€“5.

    PubMedĀ  Google ScholarĀ 

  38. Chen J, Gong X, Chen P, Luo K, Zhang X. Effect of L-arginine and sildenafil citrate on intrauterine growth restriction fetuses: a meta-analysis. BMC Pregnancy Childbirth. 2016;16:225 https://doi.org/10.1186/s12884-016-1009-6.

    ArticleĀ  PubMedĀ  PubMed CentralĀ  Google ScholarĀ 

  39. Choudhary R, Desai K, Parekh H, Ganla K. Sildenafil citrate for the management of fetal growth restriction and oligohydramnios. Int J Womenā€™s Health. 2016;8:367ā€“72. https://doi.org/10.2147/IJWH.S108370.

    ArticleĀ  Google ScholarĀ 

  40. Groom KM, Ganzevoort W, Alfirevic Z, Lim K, Papageorghiou AT. Clinicians should stop prescribing sildenafil for fetal growth restriction (FGR): comment from the STRIDER Consortium. Ultrasound Obstet Gynecol. 2018;52:295ā€“6. https://doi.org/10.1002/uog.19186.

    ArticleĀ  CASĀ  PubMedĀ  Google ScholarĀ 

  41. Dunn L, Greer R, Flenady V, Kumar S. Sildenafil in pregnancy: a systematic review of maternal tolerance and obstetric and perinatal outcomes. Fetal Diagn Ther. 2017;41:81ā€“88. https://doi.org/10.1159/000453062.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  42. Many A, Koren G. Low-molecular-weight heparins during pregnancy. Can Fam Physician Med de Famille Canadien. 2005;51:199ā€“201.

    Google ScholarĀ 

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Acknowledgements

The authors thank the participants of this study.

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RR contributed in literature search, study design, data analysis, data interpretation, and drafted the article, EBG contributed in literature search, data analysis, and supervision, and TR was responsible for data collection.

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Correspondence to R. Rasheedy.

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Rasheedy, R., El Bishry, G. & Tarek, R. Maternal low molecular weight heparin versus sildenafil citrate for fetal growth restriction: a randomized, parallel groups, open-label clinical trial. J Perinatol 40, 715ā€“723 (2020). https://doi.org/10.1038/s41372-019-0544-1

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