Abstract Background Preterm premature rupture of membranes (PPROM) and preterm labor (PTL) are adverse obstetrical outcomes that are strongly associated with cervical high-risk human papilloma virus (cHPV) infection at the time of pregnancy. Persistent cHPV may lead to oncogenic changes in the cervico-vaginal tract and can cause inflammation in gestational tissues, but it is unknown how persistent cHPV infection may affect obstetrical outcomes. The aim of this study is to evaluate whether persistent cHPV infection is associated with recurrent PPROM or PTL among patients with a prior spontaneous preterm birth due to PPROM/PTL, and to examine clinical and pathologic characteristics of cHPV infection in this population. Methods We conducted a retrospective cohort study of patients delivering at Mayo Clinic Rochester or Mayo Clinic Health System (5/1/2018–12/31/2023). Eligible patients had ≥ 1 spontaneous preterm birth due to PPROM/PTL and positive cHPV testing. Demographics and pregnancy outcomes from index and subsequent pregnancies were abstracted. Persistent cHPV was defined as > 1 pregnancy with positive cHPV testing. Results Of 191 index pregnancies, 90 (47.1%) and 30 (33.3%) had one and two subsequent pregnancies, respectively. Patients were predominantly White (91.3%), non‑Hispanic (94.2%), non-smokers (72.0%), and 34.8% were unvaccinated for HPV. Approximately one‑third (31%) experienced recurrent PPROM/PTL in the second pregnancy, with recurrence in 40.7% of those with persistent cHPV and 27.4% without (p = 0.69). Excisional procedures occurred before 12.0% of index pregnancies and 20–24% of subsequent pregnancies; recurrence of PTL/PPROM remained high regardless of procedure history. HPV strain data were available for 132 index pregnancies, and types 16 and 18 were more likely to persist into a subsequent pregnancy (p = 0.0043). CIN persistence occurred at similar rates in patients with and without persistent cHPV infection. Placental inflammation rates were high in both patients with persistent and non-persistent cHPV. Conclusion Recurrent PPROM/PTL, CIN persistence, and placental inflammation were common; a finding independent of persistent cHPV infection, excisional procedure history, or HPV vaccination status. These findings suggest that factors other than cHPV persistence may play a larger role in recurrent preterm birth. Larger studies with higher cHPV prevalence and subsequent pregnancies are needed to provide clarity.
Maternal Use of Antidepressants in Pregnancy and the Risk of Postpartum Hemorrhage: An Electronic Health Record‐Based Cohort Study
ABSTRACTObjectivesPrior studies have raised concerns about postpartum hemorrhage (PPH) risk associated with selective serotonin and serotonin‐norepinephrine reuptake inhibitors (SSRIs and SNRIs), although limitations include possible confounding by maternal indications. The current study examined the risk of PPH associated with prenatal S/NRIs accounting for diagnosed maternal depression during pregnancy.MethodsThe current study is a secondary analysis of data from a cohort of 2213 pregnancies (1997–2010) identified from a large electronic medical record‐linkage system. Exposures were identified from electronic prescriptions records and resulted in three main groups: S/NRI‐exposed pregnancies (S/NRI users), antidepressant‐unexposed pregnancies (non‐users), and S/NRI exposure in the year prior to (but not during) pregnancy (former users). Data used to identify PPH occurrences included obstetrician chart diagnoses, diagnosis codes, and recorded estimated blood loss (EBL). The risk of PPH by exposure group was estimated using unadjusted, minimally adjusted (maternal age at delivery, delivery year, parity, and maternal smoking), and depression‐adjusted models (previous covariates and maternal depression). Supplemental analyses included an examination of PPH risk with prenatal bupropion monotherapy.ResultsThe study cohort consisted of 837 S/NRI users, 401 former users, and 786 non‐users, as well as 114 bupropion users identified for additional analyses. The frequency of PPH was 11.6% in the overall cohort, and was 14.7% for S/NRI users, 10.2% for former users, and 8.7% for non‐users. The risk of PPH was significantly higher for S/NRI users than non‐users in unadjusted (OR 1.82 [95% CI 1.33, 2.49]), minimally adjusted (aOR 1.66 [1.19, 2.31]), and depression‐adjusted models (aOR 1.46 [1.02, 2.10]). The risk of PPH was also higher for S/NRI former users than non‐users in unadjusted models (OR 1.54 [1.05, 2.26]) but not minimally adjusted (aOR 1.42 [0.95, 2.11]) or depression‐adjusted models (aOR 1.41 [0.95, 2.10]). No significant differences in PPH risk were observed between S/NRI users and former users, between bupropion users and non‐users, or between S/NRI users and bupropion users.ConclusionsPrenatal S/NRI exposure was associated with an increased risk of PPH after adjusting for maternal depression, although residual confounding and confounding by other factors (including unmeasured factors) may be possible, as the risk of PPH appeared to be similar between S/NRI users and former users. Best‐practice PPH risk management strategies should be adhered to for depressed patients, especially those who require treatment with antidepressants during pregnancy.
The Association of Antidepressants in Late Pregnancy with Postpartum Hemorrhage: Systematic Review of Controlled Observational Studies
Introduction: Despite advances in obstetric care, postpartum hemorrhage (PPH) is a leading cause of maternal mortality worldwide. Prior reviews of studies published through 2016 suggest an association of antidepressant use during late pregnancy and increased risk of PPH. However, a causal link between prenatal antidepressants and PPH remains controversial. Objectives: This systematic literature review aimed to synthesize the empirical evidence on the association of antidepressant exposure in late pregnancy with the risk of PPH, including studies published before and after 2016. Methods: A systematic literature search was conducted using PubMed, OVID Medline, EMBASE, SCOPUS, PsycINFO, and CINAHL from inception to September 9, 2023. Original, peer-reviewed studies (published in English) that reported on the frequency or risk of PPH in women with evidence of antidepressant use during pregnancy and included at least one control group were included. Results: Twenty studies (eight published after 2016) met inclusion criteria, most of which focused on the risks of PPH associated with selective serotonin reuptake inhibitors (SSRIs) or serotonin-norepinephrine reuptake inhibitors (SNRIs). The main findings from the individual studies were mixed, but the majority documented statistically significant associations of PPH with late prenatal exposure, especially for exposures occurring within 30 days of delivery, compared with unexposed deliveries. Fourteen studies addressed underlying antidepressant indications or their correlates. Few studies focused on prenatal antidepressants and the risk of well-defined severe PPH or on antidepressant dose changes and general PPH risk. None examined competing risks of antidepressant discontinuation on mental health outcomes. Conclusions: Late pregnancy exposure to antidepressants may be a minor risk factor for PPH, but it is unclear to what extent reported associations are causal in nature, as opposed to correlational (effects related to nonpharmacological factors including maternal indication). For patients needing antidepressants during pregnancy, current evidence does not favor routinely discontinuing antidepressants specifically to reduce the risk of PPH.
Epigenomics May Begin To Explain
In Vitro
Differential Response To Hypomethylating Agents In MMR-D Hypermethylated Endometrial Cancer
Abstract Objectives: We hypothesize that a validated panel of methylated DNA markers (MDMs) for HPV(+)CSCC will be similar to but distinct from a cohort of HPV(+)OPSCC. Methods: Patients were excluded for recurrent tumor, prior pelvic or head or neck cancer/neoplasia, chemotherapy < 1 year, prior therapeutic radiation to the target region, prior transplant, insufficient target tissue (<5mm), or if <18 yrs. MDMs identified from sequenced differentially methylated regions were selected from a panel validated for HPV(+)CSCC and evaluated on DNA from independent FFPE HPV(+)OPSCC, HPV(+)CSCC, normal oropharynx tonsil, and normal cervix tissue using methylation-specific PCR. White blood cells (WBCs) were used as a background control. Results: 34 HPV(+)OPSCC, 36 HPV(+)CSCC, 26 normal tonsil tissue, and 24 normal cervical tissue patients met criteria. The HPV(+)OPSCC cohort was older (57 vs 44 yrs, p=0.027), had more frequent alcohol exposure (85% vs 64%, p=0.02), but similar ACE-27 comorbidity scores (p=0.078) and tobacco use (p=0.066). Tumor stages were stage I (47% and 83%), stage II (44% and 11%) and stage III (9% and 6%) for HPV(+)OPSCC and HPV(+)CSCC, respectively. Twenty-one MDMs were evaluated and areas under the receiver operator characteristic curve (AUC) are reported (Table 1). 95% confidence intervals excluded a non-diagnostic null hypothesis AUC of 0.5. 5/21 (24%) achieved an AUC ≥ 0.90, 15/21 (71%) achieved an AUC ≥ 0.8, and 19/21 (90%) exhibited better than chance classifications relative to control tonsil tissue (all p<0.001). Conclusion: MDMs have the potential to discriminate both HPV(+)OPSCC and HPV(+)CSCC from their normal tissue controls. 90% of the MDMs discovered for HPV(+)CSCC had better than chance discrimination in HPV(+)OPSCC suggesting a distinct signature between the two subtypes. Future discovery efforts specific to HPV(+)OPSCC is warranted. Methylated DNA Markers in HPV(+)OPSCC and HPV(+)CSCC CSCC AUC (95% CI) OPSCC AUC (95% CI) AUC CSCC vs AUC OPSCC Pvalue GRIN2D 0.72 (0.59-0.85) 0.91 (0.83-0.99) 0.019 EMX1 0.93 (0.86-0.99) 0.77 (0.65-0.89) 0.0191 VWC2 0.88 (0.79-0.97) 0.57 (0.42-0.72) 0.0001 ZNF610 0.99 (0.98-1) 0.89 (0.8-0.97) 0.0162 ZNF781.F 0.92 (0.86-0.99) 0.79 (0.67-0.91) 0.0585 TBX15 0.99 (0.96-1) 0.82 (0.72-0.93) 0.0025 TSPYL5 0.94 (0.87-1) 0.82 (0.72-0.93) 0.058 LOC645323 0.95 (0.89-1) 0.88 (0.8-0.97) 0.1952 ASCL1 0.98 (0.93-1) 0.86 (0.76-0.95) 0.0187 ABCB1 0.97 (0.93-1) 0.74 (0.61-0.86) 0.0001 ZNF69 0.89 (0.8-0.97) 0.95 (0.9-1) 0.2017 MAX.chr9 0.97 (0.92-1) 0.82 (0.72-0.93) 0.0113 ARHGAP12 0.91 (0.83-0.99) 0.9 (0.81-1) 0.9223 C1orf114 0.94 (0.86-1) 0.88 (0.8-0.97) 0.3366 MAX.chr6 0.99 (0.97-1) 0.86 (0.76-0.96) 0.0099 NEUROG3 0.95 (0.89-1) 0.7 (0.57-0.83) 0.0001 NID2 0.98 (0.95-1) 0.86 (0.77-0.95) 0.0207 TMEM200C 0.95 (0.89-1) 0.54 (0.39-0.69) 0.0001 TTYH1 0.99 (0.98-1) 0.82 (0.71-0.93) 0.0023 ZNF773 0.93 (0.86-1) 0.9 (0.82-0.98) 0.5696 ZNF781.R 1 (1-1) 0.92 (0.86-0.99) 0.0198 Citation Format: Kathryn M. Van Abel, David M. Routman, Daniel J. Ma, Karen A. Doering, Kelli N. Burger, Patrick H. Foote, William R. Taylor, Douglas W. Mahoney, Calise K. Berger, Xiaoming Cao, Sara S. Then, Alyssa M. Larish, Eric J. Moore, Joaquin G. Garcia, Rondell P. Graham, Jamie N. Bakkum-Gamez, John B. Kisiel. Comparison of methylated DNA markers between human papillomavirus mediated carcinoma in oropharynx and cervical cancer: A pilot study [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 3742.
Retrospective 15-Year Review of Anal Cytology Screening in Women at Mayo Clinic Rochester, Minnesota
Objectives Anal cytology is a modality for anal cancer screening in high-risk women. In this retrospective study, we review risk factors associated with abnormal anal cytology and unsatisfactory anal cytology rates, and correlate findings of cytology with histological results. Methods A retrospective cohort study of anal cytology screening in women at Mayo Clinic in Rochester, Minnesota from 2002 to 2018 was conducted. Results Three hundred fifty-seven women had a total of 592 anal cytologies performed. Three hundred seventeen women had screening anal cytology, whereas 40 women had anal cytology for surveillance given a history of anal intraepithelial neoplasia (AIN) or anal cancer. An unsatisfactory anal cytology result was found in 14.7%. Risk factors, type of follow-up, and correlation with histologic specimens were also reviewed. Histologic finding of AIN 2/3 correlated with abnormal anal cytology 84% of the time in this cohort. Conclusions High-risk women should be screened on a periodic basis for anal cancer. Anal cytology is one possible modality that can be used. Further insight into AIN progression, regression, recurrence, and outcome after treatment will help direct future screening recommendations.
Vaginal Diazepam for Nonrelaxing Pelvic Floor Dysfunction: The Pharmacokinetic Profile
ABSTRACT Background Vaginal diazepam is frequently used to treat pelvic floor tension myalgia and pelvic pain despite limited knowledge of systemic absorption. Aim To determine the pharmacokinetic and adverse event profile of diazepam vaginal suppositories. Methods We used a prospective pharmacokinetic design with repeated assessments of diazepam levels. Eight healthy volunteers were administered a 10-mg compounded vaginal diazepam suppository in the outpatient gynecologic clinic. Serum samples were collected at 0, 45, 90, 120, and 180 minutes; 8, 24, and 72 hours; and 1 week following administration of a 10-mg vaginal suppository. The occurrence of adverse events was assessed using the alternate step and tandem walk tests, the Brief Confusion Assessment Method, and numerical ratings. Plasma concentrations of diazepam and active long-acting metabolites were measured. Pharmacokinetic parameters were calculated by standard noncompartmental methods. Results The mean peak diazepam concentration (Cmax) of 31.0 ng/mL was detected at a mean time (Tmax) of 3.1 hours after suppository placement. The bioavailability was found to be 70.5%, and the mean terminal elimination half-life was 82 hours. The plasma levels of temazepam and nordiazepam peaked at 0.8 ng/mL at 29 hours and 6.4 ng/mL at 132 hours, respectively. Fatigue was reported by 3 of 8 participants. Clinical Implications Serum plasma concentrations of vaginally administered diazepam are low; however the half-life is prolonged. Strengths & Limitations Strengths include use of inclusion and exclusion criteria aimed at mitigating clinical factors that could adversely impact diazepam absorption and metabolism, and the use of an ultrasensitive LC-MS/MS assay. Limitations included the lack of addressing the efficacy of vaginal diazepam in lieu of performing a pure pharmacokinetic study with healthy participants. Conclusion Vaginal administration of diazepam results in lower peak serum plasma concentration, longer time to peak concentration, and lower bioavailability than standard oral use. Providers should be aware that with diazepam’s long half-life, accumulating levels would occur with chronic daily doses, and steady-state levels would not be reached for up to 1 week. This profile would favor intermittent use to allow participation in physical therapy and intimacy.