Our research focuses on methods of screening for gestational diabetes and the impact of visceral adiposity in pregnancy on glycemia and perinatal outcomes. A second research collaboration exists with the Motherisk Unit at The Hospital for Sick Children. We have established a lacental perfusion lab at St. Michael’s Hospital and utilize it to study the placental transport of medications and drugs in a well validated in vitro model.


Recent Publications

  1. Davidson, AJF, Park, AL, Berger, H, Aoyama, K, Harel, Z, Cohen, E et al.. Association of Improved Periconception Hemoglobin A1c With Pregnancy Outcomes in Women With Diabetes. JAMA Netw Open. 2020;3 (12):e2030207. doi: 10.1001/jamanetworkopen.2020.30207. PubMed PMID:33355674 PubMed Central PMC7758806.
  2. Ibrahim, AY, Park, AL, Berger, H, Ray, JG. Maternal Visceral Adipose Tissue and Risk of Having a Small or Large for Gestational Age Infant. J Obstet Gynaecol Can. 2020; :. doi: 10.1016/j.jogc.2020.11.019. PubMed PMID:33333315 .
  3. Feig, DS, Donovan, LE, Zinman, B, Sanchez, JJ, Asztalos, E, Ryan, EA et al.. Metformin in women with type 2 diabetes in pregnancy (MiTy): a multicentre, international, randomised, placebo-controlled trial. Lancet Diabetes Endocrinol. 2020;8 (10):834-844. doi: 10.1016/S2213-8587(20)30310-7. PubMed PMID:32946820 .
  4. Ashwal, E, Fan, IY, Berger, H, Livne, MY, Hiersch, L, Aviram, A et al.. The association between fetal head station at the first diagnosis of the second stage of labor and delivery outcomes. Am J Obstet Gynecol. 2020; :. doi: 10.1016/j.ajog.2020.09.006. PubMed PMID:32926858 .
  5. Peterson, W, Liederman, Z, Baker, J, Floros, G, Martin, R, Berger, H et al.. Hemorrhagic, thrombotic and obstetric complications of congenital dysfibrinogenemia in a previously asymptomatic woman. Thromb Res. 2020;196 :127-129. doi: 10.1016/j.thromres.2020.08.028. PubMed PMID:32866823 .
  6. Ray, JG, Berger, H, Park, AL. Population-based study of serum ferritin in early pregnancy and adverse perinatal outcomes. Paediatr Perinat Epidemiol. 2020;34 (6):706-712. doi: 10.1111/ppe.12687. PubMed PMID:32548847 .
  7. Davidson, AJF, Park, AL, Berger, H, Aoyama, K, Harel, Z, Cook, JL et al.. Risk of severe maternal morbidity or death in relation to elevated hemoglobin A1c preconception, and in early pregnancy: A population-based cohort study. PLoS Med. 2020;17 (5):e1003104. doi: 10.1371/journal.pmed.1003104. PubMed PMID:32427997 PubMed Central PMC7236974.
  8. Berger, H, Melamed, N, Davis, BM, Hasan, H, Mawjee, K, Barrett, J et al.. Impact of diabetes, obesity and hypertension on preterm birth: Population-based study. PLoS One. 2020;15 (3):e0228743. doi: 10.1371/journal.pone.0228743. PubMed PMID:32210434 PubMed Central PMC7094836.
  9. Murray-Davis, B, Berger, H, Melamed, N, Mawjee, K, Syed, M, Barrett, J et al.. Gestational weight gain counselling practices among different antenatal health care providers: a qualitative grounded theory study. BMC Pregnancy Childbirth. 2020;20 (1):102. doi: 10.1186/s12884-020-2791-8. PubMed PMID:32050930 PubMed Central PMC7017610.
  10. Berger, H, Gagnon, R, Sermer, M. Directive clinique N° 393 - Le diabète pendant la grossesse. J Obstet Gynaecol Can. 2019;41 (12):1826-1839.e1. doi: 10.1016/j.jogc.2019.03.022. PubMed PMID:31785801 .
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Affiliations & Other Activities

  • Head, Maternal Fetal Medicine and Obstetric Ultrasound, Obstetrics and Gynecology, St. Michael’s Hospital
  • Deputy Chief, Obstetrics, St. Michael’s Hospital
  • Program Director: Advanced High Risk Obstetrics, Obstetrics and Gynecology, St. Michael’s Hospital and University of Toronto
  • Associate Professor, Department of Obstetrics and Gynecology, University of Toronto