American Journal of Obstetrics & Gynecology MFM

Accuracy of a model for predicting primary cesarean delivery in pregnancies complicated by gestational diabetes mellitus in a multicenter external population
Shao SJ, Kent M, Koenig JB, Kaplan ML, Rogerson D, Shuman G, Bergam B, Ramos GA, Han CS and Sobhani NC
Substance Use Disorder and Severe Maternal Morbidity: Is there a Differential Impact?
Keller JM, Al-Hammadi N, Bass S and Chavan NR
Substance use disorder (SUD) is a disease characterized by behavior patterns of substance use leading to dysfunction in cognition, mood, and quality of life. The prevalence of perinatal substance use disorders in the United States continues to rise and have adverse effects on the maternal-infant dyad. Mirroring the rise in SUD is an increasing prevalence of severe maternal morbidity (SMM). However, this relationship needs further examination.
Physician recommendations for physical activity and lifestyle changes in pregnancies with fetal growth restriction: a survey
Paudel DA, Tinius DRA, Fortner DKB, Szymanski DLM, Zite DNB and Maples DJM
Associations between ACEs, Resilience, and Excess Gestational Weight Gain
Watson CR, Eaton A, Campbell CI, Hedderson MM, Ridout KK, Alexeeff SA and Young-Wolff KC
microRNAs in Congenital Diaphragmatic Hernia: Insights into Prenatal and Perinatal Biomarkers and Altered Molecular Pathways: microRNAs in Congenital Diaphragmatic Hernia for Pathway Analysis and Prognostic Biomarkers
Bardill JR, Karimpour-Fard A, Breckenfelder CC, Sucharov CC, Eason CR, Gallagher LT, Khailova L, Wright CJ, Gien J, Galan HL and Derderian SC
Congenital diaphragmatic hernia (CDH) is characterized by a diaphragmatic defect, leading to herniation of abdominal organs into the chest, lung compression, and impaired lung development, often resulting in pulmonary hypertension and lung hypoplasia. Prenatal imaging techniques like ultrasound and MRI provide anatomical predictors of outcomes, but their limitations necessitate novel biomarkers for better prognostic accuracy.
Evidence-based Cesarean Delivery: Postoperative Care (Part 10)
Mackeen AD, Sullivan MV, Bender W, Mascio DD and Berghella V
The following review focuses on routine postoperative care after cesarean delivery (CD), including specific Enhanced Recovery After Cesarean (ERAS) recommendations as well as important postpartum counseling points. Following CD, there is insufficient evidence to support administration of prophylactic multi-dose antibiotics to all patients. Additional antibiotic doses are indicated for the following scenarios: patients with obesity, CD lasting ≥ 4 hours since prophylactic dose, blood loss >1,500 mL, or those with an intra-amniotic infection. An oxytocin infusion for prevention of postpartum hemorrhage should be continued post-CD. While initial measures to prevent postoperative pain occur in the intraoperative period, with the consideration of 1g intravenous (IV) acetaminophen and IV or intramuscular (IM) non-steroidal anti-inflammatory medications (e.g., 30mg IV ketorolac), the focus postoperatively continues with this multimodal approach with scheduled acetaminophen per os (PO, 650mg every 6 hours) and non-steroidal agents (ketorolac 30mg IV every 6 hours for 4 doses followed by ibuprofen 600mg PO every 6 hours) being recommended. Short-acting opioids should be reserved for breakthrough pain. Low-risk patients should receive mechanical thromboprophylaxis until ambulation with chemoprophylaxis being reserved for patients with additional risk factors. When an indwelling bladder catheter was placed intraoperatively for scheduled CD, it should be removed immediately postoperatively. Chewing gum to aid in return of bowel function and early oral intake of solid food can occur immediately after CD and within 2 hours, respectively. For prevention of postoperative nausea and vomiting, administration of 5HT antagonists in recommended with the addition of either a dopamine antagonist or a corticosteroid as needed based on non-cesarean data. Early ambulation after CD starting 4 hours postoperatively is encouraged and should be incentivized by pedometer. For patients that receive a dressing over the CD skin incision, there is limited evidence regarding when best to remove it. Adjunct non-pharmacologic interventions for postoperative recovery discussed in this review are acupressure, acupuncture, aromatherapy, coffee, ginger, massage, reiki and TENS. In the low-risk patient, hospital discharge may occur as early as 24-28 hours if close (i.e., 1-2 days) outpatient neonatal follow up is available due to the potential for neonatal jaundice; otherwise, patients should be discharged at 48-72 hours postoperatively. Upon discharge, the multimodal pain control recommendations of acetaminophen and ibuprofen should be continued. If short-acting opioids are necessary, the prescribing practices should be individualized based upon the inpatient opioid requirements. Other portions of postoperative/postpartum counseling during the inpatient stay include the optimal interpregnancy interval of 18 to 23 months, encouraging exclusive breastfeeding for at least 6 months, quick resumption of physical activity and vaginal intercourse guidance as tolerated. Patients should also be counseled pre-CD on the option of immediate postpartum IUD insertion, intraoperative salpingectomy or placement of long acting reversible contraception in the postpartum period. Implementation of such evidence-based postoperative care protocols decrease length of stay, surgical site infection rates, and improve patient satisfaction and breastfeeding rates.
Role of prophylactic intravenous calcium in prevention of post-spinal hypotension among women with preeclampsia undergoing caesarean delivery: a placebo controlled randomized clinical trial: Randomized clinical trial of calcium vs placebo for prevention of post-spinal hypotension
Yadav NK, Lata S, Jha N, Chakravarthy D and Jha AK
Preeclamptic women, in addition to traditional anti-hypertensive medications, often receive magnesium supplementation and are at increased risk of post-spinal hypotension Post-spinal hypotension increases the risk of fetomaternal morbidity. Calcium is a physiological antagonist of magnesium in vascular smooth muscle. Therefore, the study hypothesized that calcium is better suited for preserving systemic vascular resistance and preventing post-spinal hypotension during cesarean delivery.
Cervical Length Nomograms for Singleton Pregnancies: A Large-Scale Gestational Analysis: Large-Scale Cervical Length Nomograms for Singleton Pregnancies
Kabiri D, Alter R, Rosenbloom JI, Tadmor O and Kremer E
Evidence-based Cesarean Delivery: Intraoperative management following placental delivery until skin closure (Part 9): Evidence based care during cesarean delivery
Mackeen AD, Sullivan MV and Berghella V
This expert review provides recommendations for the cesarean technique after placental delivery to skin closure. Following placental delivery during cesarean, sponge curettage may be omitted as it has not been shown to decrease the risk of retained products of conception. Uterine irrigation and mechanical cervical dilation cannot be recommended. Either intra-abdominal or extra-abdominal repair of the hysterotomy is acceptable with some possible benefits with decreased postoperative pain and nausea/vomiting with intra-abdominal repair. There is insufficient evidence to recommend one uterine closure technique over the other with regards to suture type, continuous versus interrupted, locking or non-locking, one versus two-layer closure. Double layer uterine closure has been shown to be more beneficial with regards to residual myometrial thickness and full thickness bites (including endometrium) should be considered. Glove change by the surgical team is recommended after placental delivery and prior to closure of the abdominal wall. The following techniques are not recommended: intra-abdominal irrigation, use of adhesion-prevention barriers, peritoneal closure, and rectus muscle re-approximation. Based on non-cesarean evidence, fascial closure bites should be at least 5 × 5 mm with monofilament suture for vertical incisions. As an adjunct to postoperative pain control, surgeons may consider wound infiltration with local anesthesia either supra- or sub-fascial. Prior to closure, subcutaneous irrigation may be performed with saline, and routine use of subcutaneous drains is not recommended. Though closure of the subcutaneous layer can be considered in all patients, it should occur when the depth is ≥ 2cm. A monofilament absorbable suture, such as poliglecaprone, should be used to close the CD skin incision. There is no level 1 evidence evaluating the potential benefit of additional skin adhesive or sterile strips after suture skin closure. If a dressing is preferred over the skin incision the following may be considered: a DACC-impregnated dressing if available, otherwise a standard gauze dressing is appropriate. Prophylactic negative pressure would therapy can be considered in patients with obesity. Vaginal seeding at CD is not recommended.
Cost-Effectiveness Analysis of a Randomized Clinical Trial of Outpatient vs. Inpatient Cervical Ripening Using Synthetic Osmotic Dilators
Avritscher EBC, Saad AF, Han X and Saade GR
Does Combining Warm Perineal Compresses with Perineal Massage During the Second Stage of Labor Reduce Perineal Trauma? A Randomized Controlled Trial: Warm compresses for reducing perineal trauma
Shqara RA, Banenbaum A, Biderman SN, Sgayer I, Keidar R, Ganim N, Lowenstein L and Mustafa S
Various interventions have been applied to reduce perineal trauma and obstetric anal sphincter injuries (OASIS). The efficacy of warm compresses during the second stage of labor for reducing the occurrence of perineal tears is controversial.
The impact of obstetrics and gynecology journal podcasts on the dissemination of featured articles
Maxey C, Hayden J, Schneyer R, Hamilton KM, Levin G, Siedhoff MT, Wright KN and Meyer R
The two-hour second stage rule: the 1817 labor of the Princess of Wales
Berghella V and Frusone V
Lidocaine Patches After Cesarean Sections: A Randomized Control Trial
Arkfeld CK, Starosta A, Esencan E, Athens ZG, Lundsberg LS and Merriam AA
Lidocaine patches are a common topical analgesic therapy but have not been thoroughly investigated in the surgical or obstetric literature. We sought to investigate the impact of adding topical lidocaine patches to routine post-cesarean pain management on patients' post-cesarean pain scores and opioid use.
Lower uterine segment thickness to predict uterine rupture: a secondary analysis of PRISMA cluster randomized trial
Bujold E, Dubé E, Girard M and Chaillet N
Third-trimester lower uterine segment thickness (LUST) is associated with uterine rupture during trial of labor after cesarean (TOLAC) but threshold values vary according to the approach used (lower values with vaginal ultrasound, higher values with abdominal ultrasound).
Screening Tests for Preeclampsia: in Search of Clinical Utility
Bart Y, Horgan R, Saade G and Sibai BM
The research and implementation process for a new screening test should involve two steps. First, one has to demonstrate that the test can predict a certain outcome or appropriately stratify the patients based on risk for the outcome. The second step requires evidence of clinical utility. The Food and Drug Administration has approved screening tests for risk stratification or progression of preeclampsia despite the absence of data on clinical utility. Introduction into clinical practice and eventual integration into the standard of care might follow quickly, making a clinical utility trial challenging to accomplish. This manuscript provides an overview of the research and regulatory pathways used for screening and diagnostic tests in medicine in general and obstetrics in particular. For illustration purposes, we review the relevant data gathered so far regarding tests that are promoted for prediction, risk stratification, and progression of preeclampsia. We then discuss the importance of proving clinical utility before introducing tests into clinical practice and the potential unintended consequences of adoption prior to proving clinical utility.
Effect of a perineal protection device in vacuum-assisted births - a prospective randomized controlled interventional trial
Hoeller A, Birri J, Ochsenbein-Koelble N, Richter A, Zimmermann R and Kimmich N
Birth tears are common after vaginal birth with a prevalence of up to 85%, especially in vaginal-assisted births. As birth trauma can cause physical and psychological short-term and long-term maternal morbidity, it is essential to improve maternal outcome at birth.
Patient perspectives on research participation during labor and delivery
Cantave M, Paul R, Atwood L, Bradley B, Collins A, Battle J, Allen K, Wilder P, Strickland JR, Carter EB, Kelly JC, Zhang F, Frolova AI and Raghuraman N
How labor induction methods have evolved throughout history, from the Egyptian era to the present day: evolution, effectiveness, and safety
Patabendige M, Rolnik DL, Li W, Weeks AD and Mol BW
Induction of labor (IOL) is currently used for one in 10 pregnancies globally. Methods used for induction have shown major changes over time. Medical interventions trace their origins back to ancient civilizations, with evidence suggesting that they began over 5000 years ago in ancient Egypt. During this era, the Egyptians employed natural remedies such as castor oil and date fruits for the IOL. These early practices highlight the rich history and long-standing tradition of using natural substances in medical treatments, laying the foundation for the development of modern obstetric practices. After that, Hippocrates practiced mammary stimulation and mechanical cervical dilatation about 2500 years ago in Greece. Since then, there has been a marked change, especially over the last century, with the development of safer and more effective methods. Mechanical methods were the main method until the early 20th century, which were then substituted by pharmacological methods with more experiments in the mid to late 20th century. Nowadays, effectiveness, safety, cost, and client satisfaction are the main determinants of the methods used. This review summarizes how labor induction practices have evolved from the Egyptian era to the present-day randomized controlled trials and meta-analysis evidence, paying attention to their effectiveness, safety, and future directions.
Timing of the obstetrics and gynecology clerkship and "hands-on" participation in deliveries
Lambert K, Engle D, Baldwin M, Temming L and Dotters-Katz SK
The association between first trimester physical activity levels and perinatal outcomes
Watkins VY, Zhao P, Frolova AI, Carter EB, Kelly JC, Odibo AO, England SK and Raghuraman N
Physical activity in pregnancy decreases the risk of adverse maternal and neonatal outcomes. This study evaluates the association between first trimester physical activity, assessed by Kaiser Physical Activity Survey (KPAS) scores, and adverse perinatal outcomes.