Taking the Express Lane: Student Attitudes Towards Tracking in Ob/Gyn Residency.

We sought to determine the subspecialty interests of fourth-year medical students (MS4s) matched to Ob/Gyn and evaluate their attitudes towards residency tracking. Matched MS4s completed a survey regarding subspecialization, confidence in that choice, and desire for tracking. A total of 922 MS4s completed the survey. Of these, 474 (51.4%) desired subspecialty training, but were less confident in their choice compared with those desiring generalist careers (60.0/100 vs. 64.9/100, P=0.003). Those seeking subspecialty training were more likely to desire tracking (15.2% vs. 39.5%, P<0.001). In conclusion, 51% of MS4s desired subspecialty training over generalist careers. Almost 40% of these students are interested in tracking.

The golden tickets: impact of preference signaling on obstetrics and gynecology residency applicants.

BACKGROUND: With the residency selection process becoming more competitive and programs receiving unprecedented numbers of applications, some specialties have introduced preference signaling in an attempt to help applicants target programs of interest. In the 2022-2023 application cycle, obstetrics and gynecology also introduced a 2-tiered system with a limited number of gold signals (n=3) and silver signals (n=15). OBJECTIVE: Given the novelty of preference signaling in the obstetrics and gynecology residency application process, this study aimed to (1) assess the effect of signals on interview offers and match and (2) discuss applicant attitudes toward this preference signaling system. STUDY DESIGN: This was a voluntary cross-sectional survey study conducted in April 2023 that was open to all fourth-year medical students who applied to an obstetrics and gynecology residency in the United States. Self-reported demographics, signaling, interview, and match data were collected. In addition, students were asked about attitudes toward signaling on a 5-point Likert scale. RESULTS: Of the 1507 applicants who entered an obstetrics and gynecology residency via match or Supplemental Offer and Acceptance Program process, 969 (64.3%) completed the survey. Moreover, an additional 22 applicants who did not match responded to the survey. More respondents used all 3 gold tokens (98.3%) and all 15 silver tokens (94.3%). The mean number of applications sent was 74.3±35.1, and the mean number of interviews received per applicant was 12.8±6.6. The interviews or token yields were 64.0%±31.5% for gold tokens, 43.8%±23.1% for silver tokens, and 9.8%±10.0% for no token. Of the survey respondents, 340/951 (35.8%) matched to a gold token program, 338/951 (35.5%) matched to a silver token program, and 244/951 (25.7%) matched to a nontoken program. Furthermore, 499/951 applicants (52.5%) reported feeling slightly positive or very positive about signaling. CONCLUSION: Most obstetrics and gynecology applicants in this survey participated in preference signaling. Gold and silver tokens were associated with high ratios of interview invitations compared with no token. However, the overall number of applications did not decrease in the 2022-2023 cycle, and only half of survey respondents reported feeling positive about the signaling process. These results can inform program directors and students about application number and strategy in upcoming cycles.

Does the Degree Matter? MD and DO Students Who Match Into OB/GYN Report Different Experiences in US Undergraduate Medical Education.

Background: Although allopathic (MD) and osteopathic (DO) students have similar curricular requirements, little is known about differences in MD and DO preparedness for obstetrics and gynecology (OB/GYN) residency. Objective: To assess differences in experiences and confidence of MD vs DO students who matched to OB/GYN. Methods: This cross-sectional survey study was open to all fourth-year medical students who matched to OB/GYN in the United States in April 2021. The survey included demographic data, clinical experiences, confidence (5-point sliding scale), and a 11-item knowledge test. Survey responses were compared to assess for disparities in experiences and confidence. Results: Survey response rate was 72.0% (1057 of 1469) students matched to OB/GYN postgraduate year 1 positions. Of the 871 MD and 175 DO responding students, MDs were more likely to have clerkships ≥6 weeks (78.1% vs 15.4%; P<.001) and a home sub-internship (92.0% vs 53.4%; P<.001). DOs reported more hands-on experiences with procedures (MD median=35 [20-35] vs DO median=40 [25-65]; P=.002). There was no difference in self-reported confidence in knowledge, technical skills, or having a realistic sense of internship, and no difference in baseline knowledge test scores. DOs felt less confident about their medical school preparation (aOR 0.40; 95% CI 0.25-0.66; P<.001) and were more likely to perceive inequity of residency preparation (aOR 1.88; 95% CI 1.18-3.00; P=.002). Conclusions: MD students matched to US OB/GYN residency programs reported longer clerkship and more home sub-internships, while DO students reported more hands-on experiences. Despite reporting similar confidence in knowledge and skills, DO students felt less prepared for internship.

The #ObGynInternChallenge: Reach, Adoption, Implementation, and Effectiveness of a Microlearning SMS-Distributed Curriculum.

PROBLEM: While many medical schools have implemented bootcamps or specialized curricula to prepare medical students for residency, these programs are neither universal nor consistent in their content. APPROACH: The authors created an electronic, multimodal, short messaging service (SMS)-distributed curriculum, called the #ObGynInternChallenge, to improve learners' medical knowledge, based on the Council on Resident Education in Obstetrics and Gynecology educational objectives. The curriculum was open to all fourth-year medical students who matched into obstetrics and gynecology (Ob/Gyn). Daily messages were delivered to participants' mobile devices via SMS for 25 consecutive weekdays, May 3-June 4, 2021. Each day's message included an introduction with key facts, an infographic, a website link with a podcast and additional reference materials, and at least one question. The authors assessed its reach, adoption, implementation, and effectiveness. OUTCOMES: For reach and adoption, total enrollment for the curriculum was 1,057 (72.0%) of 1,469 filled Ob/Gyn residency positions in the 2021 Match. The total cost of the intervention was $2,503.20 or $2.37 per participant. For implementation, all participants who signed up for the course received the daily messages, and 858/1,057 (81.2%) completed the course. Participants felt the curriculum was an excellent resource for studying (391/426, 91.8%) and the course was enjoyable to use (395/424, 93.2%). For effectiveness, mean score improvement was 11.6% (pre-test: 62.4%, post-test: 74.0%; P < .001). In the multivariate linear regression analysis, high podcast ( P = .02) and website use ( P = .002) were associated with greater score improvement. High social media use was associated with less improvement ( P = .02). NEXT STEPS: This study suggests promise for a low-cost, largely satisfying SMS-distributed curriculum in terms of offering some benefit for short-term knowledge gain. Next steps include expanding such a curriculum to meet standard learning objectives for all fourth-year medical students entering residency.

Maternal adverse childhood experiences impact fetal adrenal volume in a sex-specific manner.

BACKGROUND: The mechanisms by which parental early life stress can be transmitted to the next generation, in some cases in a sex-specific manner, are unclear. Maternal preconception stress may increase susceptibility to suboptimal health outcomes via in utero programming of the fetal hypothalamic-pituitary-adrenal (HPA) axis. METHODS: We recruited healthy pregnant women (N = 147), dichotomized into low (0 or 1) and high (2+) adverse childhood experience (ACE) groups based on the ACE Questionnaire, to test the hypothesis that maternal ACE history influences fetal adrenal development in a sex-specific manner. At a mean (standard deviation) of 21.5 (1.4) and 29.5 (1.4) weeks gestation, participants underwent three-dimensional ultrasounds to measure fetal adrenal volume, adjusting for fetal body weight (waFAV). RESULTS: At ultrasound 1, waFAV was smaller in high versus low ACE males (b = - 0.17; z = - 3.75; p < .001), but females did not differ significantly by maternal ACE group (b = 0.09; z = 1.72; p = .086). Compared to low ACE males, waFAV was smaller for low (b = - 0.20; z = - 4.10; p < .001) and high ACE females (b = - 0.11; z = 2.16; p = .031); however, high ACE males did not differ from low (b = 0.03; z = .57; p = .570) or high ACE females (b = - 0.06; z = - 1.29; p = .196). At ultrasound 2, waFAV did not differ significantly between any maternal ACE/offspring sex subgroups (ps ≥ .055). Perceived stress did not differ between maternal ACE groups at baseline, ultrasound 1, or ultrasound 2 (ps ≥ .148). CONCLUSIONS: We observed a significant impact of high maternal ACE history on waFAV, a proxy for fetal adrenal development, but only in males. Our observation that the waFAV in males of mothers with a high ACE history did not differ from the waFAV of females extends preclinical research demonstrating a dysmasculinizing effect of gestational stress on a range of offspring outcomes. Future studies investigating intergenerational transmission of stress should consider the influence of maternal preconception stress on offspring outcomes.

Volume, Distribution, and Inequities by Race and Gender of Clinical Experiences Reported by Medical Students Entering Obstetrics and Gynecology Residencies.

OBJECTIVE: To assess for inequities by race and gender of fourth year medical students' (MS4s) self-reported clinical experience in obstetrics and gynecology (Ob/Gyn). DESIGN: This was a voluntary, cross-sectional survey. Participants provided demographic data, information regarding their preparation for residency, and self-reported numbers of hands-on clinical experiences. Responses were compared across demographic categories to assess for disparity in pre-residency experiences. SETTING: The survey was open to all MS4s matched to Ob/Gyn internships in the United States in 2021. PARTICIPANTS: The survey was distributed primarily via social media. Eligibility was verified by participants supplying the names of their medical school of origin and their matched residency program prior to completing the survey. 1057/1469 (71.9%) MS4s entering Ob/Gyn residencies participated. Respondent characteristics were not different from nationally available data. RESULTS: Median clinical experience numbers were calculated for hysterectomies (10; IQR 5-20), suturing opportunities (15; IQR 8-30), and vaginal deliveries (5.5; IQR 2-12). Non-White students had fewer hands-on experiences with hysterectomy, suturing, and cumulative clinical experiences when compared to White MS4s (p values <0.001). Female students had fewer hands-on experiences with hysterectomies (p < 0.04), vaginal delivery (p < 0.03), and cumulative experiences (p < 0.002) than male students. When assessed by quartiles, non-White students and female students were less likely to be in the top quartile for experience and more likely to be in the bottom quartile for experience than their White and male counterparts, respectively. CONCLUSIONS: A significant number of medical students entering Ob/Gyn residency have minimal hands-on clinical experience with foundational procedures. Additionally, there are racial and gender disparities in clinical experiences of MS4s matching to Ob/Gyn internships. Future work should identify how biases in medical education may affect the access to clinical experience in medical school, and potential interventions to mitigate inequities in procedures and confidence prior to residency.

Counselling, Research Gaps, and Ethical Considerations Surrounding Pregnancy in Solid Organ Transplant Recipients.

Survival after solid-organ transplantation has improved significantly, and many contemporary transplant recipients are of childbearing potential. There are limited data to guide decision-making surrounding pregnancy after transplantation, variations in clinical practice, and significant knowledge gaps, all of which raise significant ethical issues. Post-transplant pregnancy is associated with an increased risk of maternal and fetal complications. Shared decision-making is a central aspect of patient counselling but is complicated by significant knowledge gaps. Stakeholder interests can be in conflict; exploring these tensions can help patients to evaluate their options and inform their deliberations. We argue that uniform, evidence-based recommendations for pregnancy after solid organ transplantation are needed. Conducting research, including patient-engaged studies, in this area should be priority for the transplant community.

Genetic Screening and Teratogenic Exposures: Considerations in Caring for the Uterus Transplant Patient.

Counseling the uterus transplant patient requires an enhanced knowledge of unique genetic challenges that include an understanding of the spectrum of Mayer-Rokitansky-Küster-Hauser syndrome. Patients should understand their options for genetic screening and testing including preimplantation genetic testing for aneuploidy, genetic screening, and diagnostic testing. This patient population is potentially at risk for fetal anomalies due to the increased susceptibility to infections, such as cytomegalovirus. There are management strategies to minimize this risk. The risk of teratogenicity from mycophenolate is eliminated by a washout period before embryo transfer.

Antepartum Care of the Uterus Transplant Patient: The Experience of 3 Successful US Centers.

We offer consensus recommendations for the antepartum management of the uterus transplant pregnancy based on our experience at 3 US centers. Patient access to accurate information is important to manage expectations and make informed decisions. Unique aspects of medical management include monitoring tacrolimus levels and performing cervical biopsies for rejection. Low-dose aspirin for preeclampsia is routinely used. Vigilant screening for gestational diabetes and preeclampsia allows for the prompt diagnosis and treatment of these common complications. We aim to deliver patients at 37 to 38 weeks by cesarean section. Shared decision making dominates whether to consider future pregnancies and timing of hysterectomy.

Implementation of a protocol for management of antepartum iron deficiency anemia: a prospective cohort study.

BACKGROUND: In randomized trials, antepartum intravenous iron sucrose is effective at improving predelivery hemoglobin in iron deficiency anemia. Yet, there is a gap between this knowledge and its implementation into care. OBJECTIVE: We aimed to determine if the implementation of a standardized protocol for the management of antepartum anemia outside of a clinical trial improves intravenous iron sucrose utilization and clinical outcomes. STUDY DESIGN: We performed a prospective cohort study evaluating the incorporation of an anemia protocol into routine clinical care for women with antepartum hemoglobin <11.0 g/dL. Our protocol, developed with multidisciplinary stakeholders, included (1) serial third trimester hemoglobin assessment, (2) oral iron supplementation for antepartum hemoglobin 9.5-11 g/dL, and (3) antepartum intravenous iron sucrose use (300 mg weekly for 3 weeks) for hemoglobin <9.5 g/dL. We compared 6-months preimplementation (January 2018 to June 2018) to 6-months postimplementation (January 2019 to June 2019). The outcomes evaluated were antepartum intravenous iron sucrose utilization, the number of intravenous iron sucrose dosages, predelivery hemoglobin, and blood transfusion. RESULTS: A total of 1423 women were included (pre=778; post=645) without significant baseline differences. The antepartum hemoglobin nadir was no different between the groups (pre: 10.2; interquartile range [9.6-10.6] vs post: 10.2; interquartile range [9.6-10.6]; P=.77). The implementation of a standardized protocol for the management of antepartum anemia was associated with 80% increased odds of receiving intravenous iron sucrose than the preimplementation group (pre: 4.8% vs post: 8.2%, P=.008; odds ratio, 1.79; 95% confidence interval, [1.16-2.77]). The implementation of a standardized protocol for the management of antepartum iron deficiency anemia was also associated with higher hemoglobin at admission for delivery (pre: 10.9; interquartile range [10.1-11.6] vs post: 11.0; interquartile range [10.3-11.7], P=.048). There were no significant differences between the groups in blood product transfusion (pre: 7.1% vs post: 5.1%, P=.13). CONCLUSION: Implementation of a standardized antepartum anemia protocol is associated with increased intravenous iron sucrose utilization and improvement in predelivery hemoglobin.

ACR Appropriateness Criteria® Second and Third Trimester Screening for Fetal Anomaly.

The Appropriateness Criteria for the imaging screening of second and third trimester fetuses for anomalies are presented for fetuses that are low risk, high risk, have had soft markers detected on ultrasound, and have had major anomalies detected on ultrasound. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.

Effectiveness of antepartum intravenous iron sucrose: dose timing and impact on outcomes.

OBJECTIVE: Studies have demonstrated that antepartum intravenous iron sucrose infusion (IVFe) is safe and improves predelivery hemoglobin (Hb). Yet, there is little data guiding timing of administration or number of doses required to be impactful. We sought to determine if timing of antepartum IVFe and number of doses provided impacts efficacy. METHODS: We performed a retrospective cohort study of women who obtained prenatal care and delivered at our institution 10/1/2015-10/30/2017. Women with a third-trimester hemoglobin (Hb) < 9.5 g/dL were included. Women with hemoglobinopathies and those who received an antepartum blood transfusion were excluded. Women receiving ≥1 antepartum 300 mg IVFe dose were considered in the IVFe group. RESULTS: Five-hundred-twenty-three (6.1%) of 8563 delivering women were included. Sixty-five (12.4%) of included women received IVFe. By timing of IVFe, the earlier IVFe was received before delivery, the greater the median Hb increase (No IVFe: Δ0.8g/dL, IVFe 0-1 weeks predelivery: Δ0.05 g/dL, 1-2 weeks: Δ0.9 g/dL, 2-4 weeks: Δ1.5 g/dL, 4-6 weeks: Δ1.8 g/dL, 6-8 weeks: Δ1.8 g/dL, 8-12 weeks: Δ2.75 g/dL, p = .0001). When comparing each stratum to the No IVFe group, only those receiving IVFe >2 weeks before delivery had a significant increase in Hb level from third trimester to delivery. By the number of IVFe doses, increasing administrations incrementally impacted Hb difference from third trimester to delivery, with only those receiving at least 3 doses demonstrating statistically significant Hb change compared to the No IVFe group. CONCLUSION: Antepartum IVFe effectively increases Hb from the third trimester to delivery admission when administered 2-12 weeks predelivery. There is increasing benefit the further out the IVFe is administered and with an increasing number of doses. Initiatives to combat antepartum anemia should focus on early detection and treatment to best optimize outcomes.

Single-unit vs multiple-unit transfusion in hemodynamically stable postpartum anemia: a pragmatic randomized controlled trial.

BACKGROUND: The American Academy of Blood Banks recommends single-unit red cell transfusion protocols across medicine to reduce transfusion complications and the use of a scarce resource. There are minimal data regarding single-unit protocols in obstetrics. OBJECTIVE: We aimed to compare single-unit vs multiple-unit transfusion protocols for treatment of hemodynamically stable postpartum anemia. STUDY DESIGN: We performed a randomized trial comparing initial transfusion with 1 unit of packed red blood cells (single-unit protocol) to 2 units of packed red blood cells (multiple-unit protocol) from March 2018 to July 2019. Women who required transfusion >6 hours postpartum were approached for consent. Unstable vital signs, hemoglobin level <5 g/dL, hemoglobinopathy, and cardiomyopathy were exclusion criteria for enrollment. Hemoglobin assessment and standardized clinical evaluation were performed 4 to 6 hours posttransfusion; additional packed red blood cells were given if indicated. The primary outcome was total units transfused. Secondary outcomes included length of stay, endometritis, wound separation or infection, venous thromboembolism, and intensive care unit admission within 30 days postpartum. Breastfeeding, depression, maternal attachment, and fatigue scores were assessed at 4 to 9 weeks postpartum. A total of 66 women were required to detect a 20% reduction in units transfused with a single-unit protocol (power=80%; α=0.05). RESULTS: A total of 66 women were randomized (33 per arm). There were no differences between groups in demographic or clinical characteristics, including delivery mode, blood loss, and randomization hemoglobin levels. The mean number of units transfused was lower in the single-unit protocol than in the multiple-unit protocol (1.2 U vs 2.1 U; P<.001). Only 18.2% of women in the single-unit arm required additional packed red blood cells. At posttransfusion assessment, women in the single-unit arm had lower hemoglobin levels (7.8 g/dL vs 8.7 g/dL; P<.001), but there were no differences in vital signs or symptoms between groups. There were also no differences in length of stay, 30-day complications, or 4 to 9 week postpartum outcomes. CONCLUSION: In women with hemodynamically stable postpartum anemia, a single-unit protocol avoided a second unit of packed red blood cells in >80% of women without significant impact on morbidity. Our work supports the use of single-unit initial transfusion in this population.

ACR Appropriateness Criteria® Second and Third Trimester Vaginal Bleeding.

Vaginal bleeding can occur throughout pregnancy with varied etiologies. Although history and physical examination can identify many etiologies, imaging, in particular ultrasound (US), is the backbone of current medical practice. US pregnant uterus transabdominal, US pregnant uterus transvaginal, and US duplex Doppler velocimetry are usually appropriate for the evaluation of women with painless vaginal bleeding, those with painful vaginal bleeding, and also for those with second or third trimester vaginal bleeding with suspicion of or known placenta previa, low-lying placenta, or vasa previa. US cervix transperineal may be appropriate for those with painless or painful vaginal bleeding but is usually not appropriate for second or third trimester vaginal bleeding with suspicion of or known placenta previa, low-lying placenta, or vasa previa. Because the outcome of pregnancies is unequivocally related to the specific etiology of the vaginal bleeding, knowledge of imaging results directly informs patient management to optimize the outcome for mother and fetus. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.

ACR Appropriateness Criteria® Placenta Accreta Spectrum Disorder.

Placenta accreta spectrum disorder (PASD) is the current terminology recommended by the International Federation of Obstetrics and Gynecology (FIGO) and should replace terms such as abnormally adherent/invasive placenta or morbidly adherent placenta. PASD refers to a variety of potential clinical complications, which may result from abnormal placental implantation. More specifically, placenta accreta refers to a defect in the decidua basalis where the chorionic villi adhere directly to the myometrium with trophoblastic invasion. Accurate antenatal diagnosis is needed to plan for an appropriate delivery strategy at an experienced center in order to reduce maternal and potential fetal morbidity and mortality. Obtaining radiologic and clinical data when PASD is first suspected can play a significant role in formulating an appropriate delivery strategy. Depending on the clinical risk factors and initial imaging findings, transabdominal ultrasound of the pregnant uterus with duplex Doppler and transvaginal ultrasound as needed are the most appropriate imaging procedures. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.

Assessing reVITALize: Should the Definition of Postpartum Hemorrhage Differ by Mode of Delivery?

Background Obstetrical hemorrhage is a leading cause of morbidity and mortality, yet is inconsistently defined. In 2014, the American Congress of Obstetricians and Gynecologists (ACOG) reVITALize program redefined postpartum hemorrhage (PPH) as greater than 1,000 mL blood loss regardless of the mode of delivery (MOD). Objective We sought to assess the reVITALize definition's validity by understanding whether the definition of PPH should, as proposed by ACOG, be one value regardless of MOD. Study Design This is a retrospective study of all women who delivered at the hospital of the University of Pennsylvania from October 15, 2013 through December 15, 2013. Results A total of 592 of the 626 (95%) women were included. The average reported estimated blood loss (EBL) for vaginal delivery (VD) was significantly lower than for cesarean delivery (CD) ([350 ±170 mL) and [880 ± 360 mL]; p < 0.001). The average hemoglobin (Hb) drop was only slightly lower for VD compared with CD ([1.4 ± 1.0 g/dL {11.5% drop}] and [1.9 ± 1.2 g/dL {16.2% drop}], respectively, p < 0.001). The association between EBL and observed Hb drop differed in accuracy by MOD. Conclusion Likely based on historic perceptions, obstetric providers estimate blood loss for VD as less than half that of CD. However, using objective measures, blood loss is more similar than perceived between VD and CD, supporting the ACOG reVITALize single definition of PPH regardless of MOD.

Interleukin-6 and tumor necrosis factor alpha as predictors of success after emergent cerclage.

Serum levels of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-alpha) were measured in patients requiring an emergent cerclage to determine if they are predictive of successful pregnancy outcome. Women with a clinical diagnosis of cervical incompetence requiring an emergent cerclage between 15 and 24 weeks gestation were enrolled. Asymptomatic women of the same gestational age range were recruited as controls. IL-6 and TNF-alpha levels were measured by enzyme-linked immunosorbent assay. Twenty-one women underwent emergent cerclage and participated in the study, 15 (71%) of whom delivered after 28 weeks. Twenty-one women served as controls. IL-6 levels were increased in women with cervical incompetence compared with control subjects, but there were no differences between cerclage success and failure groups. TNF-alpha was not increased in women with cervical incompetence and did not predict success of emergent cerclage. IL-6 levels were increased in women with cervical incompetence who required an emergent cerclage.

Relationship between tumor necrosis factor-alpha genotype and success of emergent cerclage.

The guanine to adenine substitution at the -308 position in the tumor necrosis factor-alpha (TNF-alpha) gene promoter region results in a 5-fold greater cytokine response to an inciting event. We investigated whether this polymorphism is associated with cervical incompetence and adverse pregnancy outcome after emergent cerclage. Women with a diagnosis of cervical incompetence requiring an emergent cerclage between 15 and 24 weeks were enrolled. Women without pregnancy complications were recruited as controls. DNA extraction from peripheral blood and polymerase chain reaction (PCR) amplification of a 144-base pair segment of the TNF-alpha gene were performed with subsequent sequencing. Twenty-three women underwent emergent cerclage and participated in the study, 13 (57%) of whom delivered after 28 weeks. Twenty-three women served as controls. There were no differences in the TNF-alpha polymorphism between women with cervical incompetence and controls or between women with cervical incompetence who delivered before versus after 28 weeks. The TNF-alpha polymorphism was not associated with cervical incompetence or with delivery prior to 28 weeks in women who received an emergent cerclage.