Medical College of Wisconsin
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Brock Polnaszek MD

Brock Polnaszek MD profile photo picture

Assistant Professor

Institution: Medical College of Wisconsin
Department: Obstetrics and Gynecology
Division: Maternal Fetal Medicine
Program: Maternal Fetal Medicine

image of /images/ORCIDiD_icon16x16.png   https://orcid.org/0000-0002-2092-9576


I am willing to collaborate on research projects.
I am willing to be a peer mentor.
I am willing to mentor a junior faculty member.


Research Areas of Interest

  • Birth Injuries
  • Birth Weight
  • Cerebral Intraventricular Hemorrhage
  • Cerebral Palsy
  • Chorioamnionitis
  • Delivery Rooms
  • Fetal Research
  • Health Status Disparities
  • Healthcare Disparities
  • Hypoxia-Ischemia, Brain
  • Infant, Low Birth Weight
  • Infant, Very Low Birth Weight
  • Labor, Obstetric
  • Live Birth
  • Maternal Health
  • Maternal Mortality
  • Multiple Birth Offspring
  • Neonatal Sepsis
  • Obstetric Nursing
  • Obstetrics
  • Parturition
  • Perinatal Care
  • Perinatology
  • Premature Birth
  • Social Determinants of Health
  • Stillbirth
  • Term Birth
  • Thermography
  • Vaginal Birth after Cesarean
  • Research Experience

  • Chorioamnionitis
  • Hypoxia-Ischemia, Brain
  • Labor, Obstetric
  • Maternal Health
  • Maternal Mortality
  • Term Birth
  • Thermography
  • Clinical Expertise

  • Obstetrics and Gynecology Department, Hospital
  • MATERNAL FETAL MEDICINE
  • Methodologies and Techniques

  • Female
  • Humans
  • Pregnancy
  • Retrospective Studies
  • Social Determinants of Health
  • Publications (28)

  • Parental Health and Flourishing Among Young US Children. (Polnaszek BE, Griffin LB, Amanullah S, Tuuli MG, Lewkowitz AK, Gjelsvik A) JAMA Netw Open 2024 Oct 01;7(10):e2443975 PMID: 39466246 10/28/2024    
  • The association of social vulnerability index and trial of labor after cesarean: comment on Tavella et al 2024. (Murphy LM, Echeng NP, Scarpaci M, Thorsen MM, Adewale VA, Soehl JR, Whelan AR, Gimovsky AC, Polnaszek BE) J Clin Epidemiol 2024 Sep 02:111513 PMID: 39233135 SCOPUS ID: 2-s2.0-85205544505 09/05/2024    
  • Amnioinfusion for reducing umbilical artery lactate among fetuses at risk of neurologic injury: a pilot randomized clinical trial. (Polnaszek BE, Rossen J, Scarpaci M, Murphy LM, Whelan AR, Hamel M, Rouse DJ, Tuuli MG, Lewkowitz AK) Am J Obstet Gynecol MFM 2024 Oct;6(10):101446 PMID: 39117278 SCOPUS ID: 2-s2.0-85203449567 08/09/2024    
  • Obstetric Emergency Simulation: A Pre/Post Survey Analysis of High-Fidelity Teamwork Among Emergency Department Physicians. (Polnaszek BE, Griffin LB, Whelan AR, Soehl J, Clark MA, Lewkowitz AK, Hamel M) R I Med J (2013) 2024 Jul 01;107(7):36-38 PMID: 38917314 06/25/2024    
  • Walk With Ease made easier: A community feasibility pilot study of implementing an arthritis activity intervention. (Perez A, Messina M, Polnaszek B, White DW, Miller KA, Joseph AT, Kies K, Walraven L, Barnes C, Bartels CM) Musculoskeletal Care 2024 Jun;22(2):e1895 PMID: 38725095 SCOPUS ID: 2-s2.0-85192724820 05/10/2024    
  • Triple-blind peer review in scientific publishing: a systematic review. (Polnaszek BE, Mei J, Cheng C, Punjala-Patel A, Sawyer K, Manuck TA, Bennett TA, Miller ES, Berghella V) Am J Obstet Gynecol MFM 2024 Apr;6(4):101320 PMID: 38492638 SCOPUS ID: 2-s2.0-85190529456 03/17/2024    
  • Piperacillin-tazobactam compared with ampicillin-gentamicin for intraamniotic infection: a noninferior and propensity-matched analysis. (Anderson K, Scarpaci M, Hardy E, Li C, Lewkowitz AK, Rouse DJ, Polnaszek BE) Am J Obstet Gynecol 2024 Jul;231(1):e9-e11 PMID: 38423449 SCOPUS ID: 2-s2.0-85189666114 03/01/2024    
  • Intrapartum amnioinfusion for recurrent variable decelerations and neonatal morbidity: A systematic review and meta-Analysis (Polnaszek BE, Rossen J, Bligard KH, Hardi A, Miller ES, Tuuli MG, Lewkowitz AK) Clinical and Experimental Obstetrics and Gynecology March 2024;51(3) SCOPUS ID: 2-s2.0-85188172357 03/01/2024    
  • The association between neighborhood deprivation and engagement in mental healthcare after implementation of the perinatal collaborative care model. (Polnaszek BE, Mwenda KM, Nelson LD, Sit DK, Lewkowitz AK, Miller ES) Am J Obstet Gynecol 2024 Jul;231(1):e1-e8 PMID: 38408620 PMCID: PMC11194146 SCOPUS ID: 2-s2.0-85190557131 02/27/2024    
  • Internal Versus External Intrapartum Monitoring and Birthing Persons Perception of Control During Childbirth. (Polnaszek BE, Whelan AR, Recabo O, Rossen J, Lewkowitz AK, Ayala NK) R I Med J (2013) 2024 Jan 04;107(1):34-36 PMID: 38166076 01/03/2024    
  • Social vulnerability index and stillbirth: a secondary analysis of the Stillbirth Collaborative Research Network. (Smith MM, Cersonsky TEK, Ayala NK, Reddy U, Saade GR, Dudley DJ, Silver RM, Pinar H, Goldenberg RL, Lewkowitz AK, Polnaszek BE) Am J Obstet Gynecol 2024 May;230(5):e67-e77 PMID: 38097031 PMCID: PMC11170033 SCOPUS ID: 2-s2.0-85184776353 12/15/2023    
  • The relationship between body mass index and perceived control over labor. (Whelan AR, Polnaszek BE, Recabo O, Clark MA, Lewkowitz AK, Ayala NK) BMC Pregnancy Childbirth 2023 Oct 25;23(1):752 PMID: 37880671 PMCID: PMC10598931 SCOPUS ID: 2-s2.0-85174961173 10/26/2023    
  • Body Mass Index and Perceived Labor Control: Could weight stigma explain differences in birth experience? (Whelan AR, Polnaszek BE, Recabo O, Clark MA, Lewkowtiz AK, Ayala NK) Res Sq 2023 Jul 19 PMID: 37502868 PMCID: PMC10371127 07/28/2023    
  • Risk of Spontaneous Obstetric Anal Sphincter Injury Following Non-Operative Vaginal Delivery in a High-Risk Cohort. (Polnaszek BE, Danilack VA, Has P, Russo M, Hamel M, Tuuli MG, Savitz DA, Lewkowitz AK) R I Med J (2013) 2023 Mar 01;106(2):43-44 PMID: 36848543 PMCID: PMC10408132 02/28/2023    
  • Response to Letter. (Polnaszek BE, Clark SL, Rouse DJ) Obstet Gynecol 2022 Aug 01;140(2):342-343 PMID: 35852289 SCOPUS ID: 2-s2.0-85134557148 07/20/2022    
  • Response to Letter. (Polnaszek B, Clark SL, Rouse DJ) Obstet Gynecol 2022 Aug 01;140(2):340-341 PMID: 35852287 SCOPUS ID: 2-s2.0-85134557083 07/20/2022    
  • Oxytocin utilization for women undergoing an induction of labor by 1 kg/m2 increase in body mass index. (Polnaszek BE, Reilly J, Raker CA, Lewkowitz AK, Danilack VA) Am J Obstet Gynecol 2022 Sep;227(3):546-547 PMID: 35671778 PMCID: PMC10308358 SCOPUS ID: 2-s2.0-85136531636 06/08/2022    
  • Pathologic Assessment of the Placenta: Evidence Compared With Tradition. (Polnaszek BE, Clark SL, Rouse DJ) Obstet Gynecol 2022 Apr 01;139(4):660-667 PMID: 35271512 SCOPUS ID: 2-s2.0-85130863173 03/11/2022       14 Citations
  • The Impact of Neighborhood Deprivation on Glycemic Control for Patients with Type 2 Diabetes During Pregnancy. (Zahedi-Spung L, Polnaszek B, Duckham H, Zhang F, Stout MJ, Herrick CJ, Paul R, Carter EB) J Womens Health (Larchmt) 2022 Aug;31(8):1156-1164 PMID: 35245092 PMCID: PMC9419981 SCOPUS ID: 2-s2.0-85136911098 03/05/2022       6 Citations
  • Idiopathic Polyhydramnios and Neonatal Morbidity at Term. (Polnaszek B, Liang B, Zhang F, Cahill AG, Raghuraman N, Young OM) Am J Perinatol 2023 Dec;40(16):1827-1833 PMID: 34775584 SCOPUS ID: 2-s2.0-85119831171 11/15/2021       9 Citations
  • Term Pregnancy After Complete Response of Placental Site Trophoblastic Tumor to Immunotherapy. (Polnaszek B, Mullen M, Bligard K, Raghuraman N, Massad LS) Obstet Gynecol 2021 Jul 01;138(1):115-118 PMID: 34259474 SCOPUS ID: 2-s2.0-85111597166 07/15/2021       16 Citations
  • Evidence-based management of the second stage of labor. (Polnaszek BE, Cahill AG) Semin Perinatol 2020 Mar;44(2):151213 PMID: 31839439 SCOPUS ID: 2-s2.0-85076534933 12/17/2019       4 Citations
  • Marked variability in intrapartum electronic fetal heart rate patterns: association with neonatal morbidity and abnormal arterial cord gas. (Polnaszek B, López JD, Clark R, Raghuraman N, Macones GA, Cahill AG) J Perinatol 2020 Jan;40(1):56-62 PMID: 31578422 PMCID: PMC7202403 SCOPUS ID: 2-s2.0-85074404984 10/04/2019       17 Citations
  • Neoadjuvant chemotherapy is associated with a high rate of perioperative blood transfusion at the time of interval cytoreductive surgery. (McCool KW, Sampene E, Polnaszek B, Connor J, Medlin EE, Barroilhet L) BMC Cancer 2018 Oct 26;18(1):1041 PMID: 30367632 PMCID: PMC6204018 SCOPUS ID: 2-s2.0-85055612650 10/28/2018       6 Citations
  • Neonatal Morbidity in the Offspring of Obese Women Without Hypertension or Diabetes. (Polnaszek BE, Raghuraman N, Lopez JD, Frolova AL, Wesevich V, Tuuli MG, Cahill AG) Obstet Gynecol 2018 Oct;132(4):835-841 PMID: 30130347 PMCID: PMC7202404 SCOPUS ID: 2-s2.0-85064133728 08/22/2018       9 Citations
  • Overcoming the Challenges of Unstructured Data in Multisite, Electronic Medical Record-based Abstraction. (Polnaszek B, Gilmore-Bykovskyi A, Hovanes M, Roiland R, Ferguson P, Brown R, Kind AJ) Med Care 2016 Oct;54(10):e65-72 PMID: 27624585 PMCID: PMC5024721 SCOPUS ID: 2-s2.0-84988489858 09/15/2016       37 Citations
  • Omission of Physical Therapy Recommendations for High-Risk Patients Transitioning From the Hospital to Subacute Care Facilities. (Polnaszek B, Mirr J, Roiland R, Gilmore-Bykovskyi A, Hovanes M, Kind A) Arch Phys Med Rehabil 2015 Nov;96(11):1966-72.e3 PMID: 26253350 PMCID: PMC4628558 SCOPUS ID: 2-s2.0-84946476128 08/09/2015       18 Citations
  • The consequences of poor communication during transitions from hospital to skilled nursing facility: a qualitative study. (King BJ, Gilmore-Bykovskyi AL, Roiland RA, Polnaszek BE, Bowers BJ, Kind AJ) J Am Geriatr Soc 2013 Jul;61(7):1095-102 PMID: 23731003 PMCID: PMC3714367 SCOPUS ID: 2-s2.0-84880297449 06/05/2013       167 Citations
  • Last update: 10/29/2024