Clinical predictors of endometritis in women with symptoms and signs of pelvic inflammatory disease

PPAR beta/delta regulates the immune response mechanisms in the porcine endometrium during LPS-induced inflammation - An in vitro study

Inflammation in the reproductive tract has become a serious threat to animal fertility. Recently, the role of peroxisome proliferator-activated receptor gamma (PPARγ) in the context of reproduction and the inflammatory response has been highlighted, but the role of PPARβ/δ has not been fully elucidated. The aim of the present study was to investigate the in vitro effect of PPARβ/δ ligands (agonist: L-165,041 and antagonist: GSK 3787) on the transcriptome profile of porcine endometrium during LPS-induced inflammation in the mid-luteal and follicular phases of the oestrous cycle (days 10-12 and 18-20, respectively) using the RNA-Seq method. During the mid-luteal phase of the oestrous cycle, the current study identified 145 and 143 differentially expressed genes (DEGs) after treatment with an agonist or antagonist, respectively. During the follicular phase of the oestrous cycle, 55 and 207 DEGs were detected after treatment with an agonist or antagonist, respectively. The detected DEGs are engaged in the regulation of various processes, such as the complement and coagulation cascade, NF-κB signalling pathway, or the pathway of 15-eicosatetraenoic acid derivatives synthesis. The results of the current study indicate that PPARβ/δ ligands are involved in the control of the endometrial inflammatory response.

Selenomethionine protects against Escherichia coli-induced endometritis by inhibiting inflammation and necroptosis via regulating the PPAR-γ/NF-κB pathway

Endometritis, inflammation of the endometrium, is a major cause of subfertility in women. Selenomethionine (SeMet)is known to exert anti-inflammatory activity. We aimed to verify the protective roles of SeMet on Escherichia coli (E.coli)-induced endometritis. The extent of uterus damage was assessed by detecting histopathology and inflammatory mediators. The results revealed that SeMet significantly prevented E.coli-induced endometritis by attenuating uterine histopathology and inflammatory cytokine production. E.coli-induced MPO activity and MDA content were inhibited by SeMey. E.coli-induced ZO-1 and occludin were upregulated by SeMet. E.coli-induced necroptosis was also inhibited by SeMet. Additionally, E.coli-induced NF-κB activation was alleviated by SeMet. PPAR-γ expression was upregulated by SeMet. Notably, the protective effects of SeMet on endometritis were abolished by a PPAR-γ inhibitor. In conclusion, SeMet inhibits E.coli-induced endometritis by attenuating inflammation and necroptosis, which is mediated by the PPAR-γ/NF-κB signaling pathway.

Citral protects against LPS-induced endometritis by inhibiting ferroptosis through activating Nrf2 signaling pathway

INTRODUCTION

Endometritis is the inflammatory condition of the uterus. Citral, a component of lemongrass oil, is known to exhibit anti-inflammatory activity.

AIM

The effects of citral on LPS-induced endometritis were tested and the mechanisms were investigated.

METHODS

LPS-induced endometritis mice model was established and the effects of citral were detected using this model. Inflammatory cytokines were tested by ELISA. Ferroptosis was assessed by detecting GSH, ATP, MDA, and Fe²⁺ levels. Signaling pathway was tested by western blot analysis.

RESULTS

Citral prevented LPS-induced endometritis through attenuating uterine pathological changes and inflammatory cytokine release. Meanwhile, citral prevents LPS-induced ferroptosis through attenuating MDA and Fe²⁺ levels, as well as increasing ATP and GSH levels. Furthermore, citral up-regulated Nrf2 and HO-1 expression and attenuated NF-κB activation. In addition, in Nrf2 knockdown mice, the inhibitory roles of citral on ferroptosis and endometritis were largely reversed.

CONCLUSION

Taken together, citral inhibited LPS-induced endometritis through preventing ferroptosis, which were regulated by Nrf2 signaling pathway.

Diagnostic accuracy of pelvic examination in pelvic inflammatory disease: A meta-analysis

Background

Pelvic inflammatory disease (PID) is not a mere transient infection. PID can lead to chronic pain, ectopic pregnancy, and infertility. Although the Centers for Disease Control and Prevention have established minimum diagnostic criteria, including pelvic examination, the diagnostic value of pelvic tenderness has recently garnered controversy. Our meta-analysis aimed to confirm whether pelvic tenderness, cervical motion tenderness, and adnexal tenderness can help diagnose PID.

Methods

We searched for studies reporting the diagnostic test accuracy of pelvic tenderness, cervical motion tenderness, and adnexal tenderness among female patients at risk for PID, using MEDLINE, EMBASE, CENTRAL, CINAHL, Google, and Google Scholar through May 25th, 2022. After quality assessment using QUADAS-2, we performed data synthesis using a bivariate random effect model and Bayesian hierarchical summary receiver operating characteristic model. We then conducted sensitivity analysis excluding studies with non-PID cases.

Results

The literature search produced 6769 articles. After quality assessment, 14 studies and their 2808 participants were eligible for synthesis on pelvic tenderness. Laparoscopy, either alone or in combination, was the most frequent reference standard. The main results for pelvic tenderness sensitivity and specificity were 0.81, 95% confidence interval (CI) [0.67-0.90] and 0.40, 95% CI [0.25-0.57], respectively. Sensitivity and specificity were 0.72, 95% CI [0.57-0.83] and 0.50, 95% CI [0.34-0.66], for cervical motion tenderness, and 0.87 [0.64-0.96] and 0.27, 95% CI [0.12-0.52] for adnexal tenderness, respectively.

Conclusions

Our meta-analysis suggests that pelvic tenderness assessed by pelvic examination may be useful for PID examination with moderate-to-high sensitivity, whereas clinicians should be aware of the diagnostic significance of pelvic tenderness.

Testing for Mycoplasma genitalium in pelvic inflammatory disease: A clinical audit

The records of women attending Gold Coast health hospital sites were retrospectively analysed to determine if women diagnosed with pelvic inflammatory disease (PID) were being tested for Mycoplasma genitalium (MG). Only 11.4% of 299 women were tested for MG despite 74.2% being tested for Chlamydia trichomonas (CT) and Neisseria gonorrhoeae (NG). Only 9% of the women were treated with antibiotics which would treat macrolide-sensitive MG infection. Increasing education and awareness of MG and utilising reflex macrolide testing for MG will help direct effective antibiotic therapy and prevent the long-term sequalae of PID.

Pelvic inflammatory disease and causative pathogens in older women in a medical center in eastern Taiwan: A retrospective cross-sectional study

OBJECTIVES

Most research into the management of pelvic inflammatory disease (PID) is in younger women and focuses on sexually transmitted pathogens such as N. gonorrhoeae or C. trachomatis. Non-sexually transmitted bacterial pathogens and PID in older women are rarely examined. The objective of this study is to explore cervical culture pathogens in women of different age groups in a medical center in eastern Taiwan.

METHODS

We enrolled patients whose medical records were diagnosed with PID (ICD-9-CM 614.0 [N70.01-03], 614.1[N70.11-13], 614.9 [N73.5, N73.9]) at our hospital from October 2014 to March 2020. Patients were divided into three groups according to age: the age <25 years, age 25-44 years, and the ≥ 45 years group. Chi-square test, ANOVA and logistic regression were used for statistical analysis. In subgroup analysis, endocervical pathogens were further stratified into vaginal, respiratory, enteric, skin, oral, and other.

RESULTS

A total of 96 patients were included in the study. There were 31 patients in the age ≥ 45 years group, 52 patients in the age 25-44 years group, and 13 patients in the age <25 years group. Vagina and enteric pathogens were the most common pathogens among all groups. The isolated respiratory and other pathogens were more in the age ≥ 45 years group than in the other two groups. Prevotella bivia was more common in the age <25 years and 25-44 years groups.

CONCLUSIONS

This may be due to different pathogeneses of PID in the age ≥ 45 years patients. Our study can be used as a reference for antibiotic choice of non-sexually transmitted PID and to prevent long-term sequelae of PID.

Pelvic inflammatory disease in the adolescent and young adult: An update

Pelvic inflammatory disease (PID) is an infection of the female upper genital tract that is typically polymicrobial with classic core involvement of Neisseria gonorrhoeae and/or Chlamydia trachomatis, though other endogenous flora from the vagino-cervical areas can be involved as well. It is often a sexually transmitted disease but other etiologic routes are also noted. A variety of risk factors have been identified including adolescence, young adulthood, adolescent cervical ectropion, multiple sexual partners, immature immune system, history of previous PID, risky contraceptive practices and others. An early diagnosis and prompt treatment are necessary to reduce risks of PID complications such as chronic pelvic pain, ectopic pregnancy and infertility. Current management principles of PID are also reviewed. It is important for clinicians to screen sexually active females for common sexually transmitted infections such as Chlamydia trachomatis and provide safer sex education to their adolescent and young adult patients. Clinicians should provide comprehensive management to persons with PID and utilize established guidelines such as those from the US Centers for Disease Control and Prevention (CDC).

Bacterial Vaginosis and Behavioral Factors Associated With Incident Pelvic Inflammatory Disease in the Longitudinal Study of Vaginal Flora

BACKGROUND

Pelvic inflammatory disease (PID) leads to long-term reproductive consequences for cisgender women. Bacterial vaginosis (BV) and behavioral factors may play a role in PID pathogenesis. We assessed associations between BV, behavioral factors, and incident PID.

METHODS

We analyzed participants (N = 2956) enrolled in the National Institutes of Health Longitudinal Study of Vaginal Flora, a cohort of nonpregnant cisgender women followed quarterly for 12 months. PID was defined by at least 1 of the following: cervical motion tenderness, uterine tenderness, or adnexal tenderness (160 cases). We tested associations between BV (measured using Nugent and Amsel criteria) and PID at the subsequent visit. Sociodemographic factors, sexual behaviors, and Chlamydia trachomatis (CT), untreated at baseline and concurrent with BV, were covariates in Cox proportional hazards models. Adjusting for the few Neisseria gonorrhoeae and Trichomonas vaginalis cases did not alter results.

RESULTS

In multivariable modeling, Nugent-BV (adjusted hazard ratio [aHR], 1.53 [95% confidence interval {CI}, 1.05-2.21]), symptomatic Amsel-BV (aHR, 2.15 [95% CI, 1.23-3.75]), and vaginal douching (aHR, 1.47 [95% CI, 1.03-2.09]) were associated with incident PID.

CONCLUSIONS

BV was associated with incident PID in a large prospective cohort, controlling for behavioral factors and sexually transmitted infections (STIs). Larger studies on how BV, STIs, behaviors, and host responses interactively affect PID risk are needed.

Sexually Transmitted Infections Treatment Guidelines, 2021

These guidelines for the treatment of persons who have or are at risk for sexually transmitted infections (STIs) were updated by CDC after consultation with professionals knowledgeable in the field of STIs who met in Atlanta, Georgia, June 11–14, 2019. The information in this report updates the 2015 guidelines. These guidelines discuss 1) updated recommendations for treatment of Neisseria gonorrhoeae, Chlamydia trachomatis, and Trichomonas vaginalis; 2) addition of metronidazole to the recommended treatment regimen for pelvic inflammatory disease; 3) alternative treatment options for bacterial vaginosis; 4) management of Mycoplasma genitalium; 5) human papillomavirus vaccine recommendations and counseling messages; 6) expanded risk factors for syphilis testing among pregnant women; 7) one-time testing for hepatitis C infection; 8) evaluation of men who have sex with men after sexual assault; and 9) two-step testing for serologic diagnosis of genital herpes simplex virus. Physicians and other health care providers can use these guidelines to assist in prevention and treatment of STIs.

Characteristics of pelvic inflammatory disease caused by sexually transmitted disease - An epidemiologic study

INTRODUCTION

Pelvic inflammatory disease (PID) is an infection of the upper genital organs, diagnosed by clinical findings. The nucleic acid amplification test (NAAT) identify sexually transmitted (STD) pathogens from endocervical swabs, via real time PCR. This study explored the prevalence of STD detected by NAAT for women with PID. We also aimed to identify predictive characteristics for positive test.

MATERIAL & METHODS

This retrospective cohort study explored the prevalence of positive NAAT for women with clinically diagnosed PID, 2016-2019, in a secondary referral center. The primary outcome was the prevalence of positive STD tests and specific pathogens. The secondary outcome was predictive clinical and laboratory parameters for positive NAAT.

RESULTS

Among the 610 women in our cohort, 103 had a positive STD PCR, which accounts for 17%. Most of the patients had Urea parvum (39.4%) Mycoplasma hominis (17.2%) or Urea urealyticum (15.7%). Other pathogens with lower incidence were Chlamydia trachomatis (9.8%), Trichomonas vaginalis (3.4%), Mycoplasma genitalium (2.1%) and the lowest rate was for Neisseria gonorrhea (1.5%).

CONCLUSION

In our population, we found lower prevalence of Chlamydia trachomatis and Neisseria gonorrhea compared to other large populations. This may be due to a high prevalence of married and religious women and also due to administration of a wide range of empirical antibiotic treatment, even for a low suspicion of PID. The study also gives reassurance that our empirical antibiotic protocol is adjusted to the endemic PID pathogens found in our population.

Deep Neural Networks Offer Morphologic Classification and Diagnosis of Bacterial Vaginosis

Bacterial vaginosis (BV) is caused by the excessive and imbalanced growth of bacteria in vagina, affecting 30 to 50% of women. Gram staining followed by Nugent scoring based on bacterial morphotypes under the microscope is considered the gold standard for BV diagnosis; this method is often labor-intensive and time-consuming, and results vary from person to person. We developed and optimized a convolutional neural network (CNN) model and evaluated its ability to automatically identify and classify three categories of Nugent scores from microscope images. The CNN model was first established with a panel of microscopic images with Nugent scores determined by experts. The model was trained by minimizing the cross-entropy loss function and optimized by using a momentum optimizer. The separate test sets of images collected from three hospitals were evaluated by the CNN model. The CNN model consisted of 25 convolutional layers, 2 pooling layers, and a fully connected layer. The model obtained 82.4% sensitivity and 96.6% specificity with the 5,815 validation images when altered vaginal flora and BV were considered the positive samples, which was better than the rates achieved by top-level technologists and obstetricians in China. The capability of our model for generalization was so strong that it exhibited 75.1% accuracy in three categories of Nugent scores on the independent test set of 1,082 images, which was 6.6% higher than the average of three technologists, who are hold bachelor's degrees in medicine and are qualified to make diagnostic decisions. When three technologists ran one specimen in triplicate, the precision of three categories of Nugent scores was 54.0%. One hundred three samples diagnosed by two technologists on different days showed a repeatability of 90.3%. The CNN model outperformed human health care practitioners in terms of accuracy and stability for three categories of Nugent score diagnosis. The deep learning model may offer translational applications in automating diagnosis of bacterial vaginosis with proper supporting hardware.

Transcriptome analysis of porcine endometrium after LPS-induced inflammation: effects of the PPAR-gamma ligands in vitro†

Female fertility depends greatly on the capacity of the uterus to recognize and eliminate microbial infections, a major reason of inflammation in the endometrium in many species. This study aimed to determine the in vitro effect of peroxisome proliferator-activated receptor gamma (PPARγ) ligands on the transcriptome genes expression and alternative splicing in the porcine endometrium in the mid-luteal phase of the estrous cycle during LPS-stimulated inflammation using RNA-seq technology. The endometrial slices were incubated in vitro in the presence of LPS and PPARγ agonists-PGJ2 or pioglitazone and antagonist-T0070907. We identified 222, 3, 4, and 62 differentially expressed genes after LPS, PGJ2, pioglitazone, or T0070907 treatment, respectively. In addition, we detected differentially alternative spliced events: after treatment with LPS-78, PGJ2-60, pioglitazone-52, or T0070907-134. These results should become a basis for further studies explaining the mechanism of PPARγ action in the reproductive system in pigs.

A Need for Standardization of the Diagnosis and Treatment of Pelvic Inflammatory Disease: Pilot Study in an Outpatient Clinic in Quito, Ecuador

Background

Pelvic inflammatory disease (PID) diagnosis is often challenging as well as its treatment. This study sought to characterize the diagnostic and therapeutic trend among physicians at the outpatient level, in Quito, Ecuador, where currently no nationwide screening or specific clinical guideline has been implemented on PID or its main microbiological agents.

Methods

A retrospective analysis of medical records with pelvic inflammatory disease diagnosis in an outpatient clinic was performed. Electronic medical records from 2013 to 2018 with any pelvic inflammatory disease-related diagnoses were retrieved. Information with regard to age, sexually related risk factors, symptoms and physical exam findings, ancillary tests, method of diagnosis, and antibiotic regimens was extracted.

Results

A total of 186 records were included. The most frequent clinical manifestations were vaginal discharge (47%) and pelvic pain (39%). In the physical examination, leucorrhea was the most frequent finding (47%), followed by lower abdominal tenderness (35%) and cervical motion tenderness in 51 patients (27%). A clinical diagnosis was established in 60% of patients, while 37% had a transvaginal sonography-guided diagnosis. Antibiotic treatment was prescribed with standard regimens in 3% of cases, while other regimens were used in 93% of patients. Additionally, an average of 1.9 drugs were prescribed per patient, with a range from 1 to 5, all in different combinations and dosages.

Conclusions

No standardized methods of diagnosis or treatment were identifiable. These findings highlight the need for standardization of the diagnosis and treatment of PID attributed to chlamydial and gonococcal infections.

Pneumoperitoneum secondary to tubo-ovarian abscess: A case report

Pneumoperitoneum seen on an X-ray or computed tomography (CT) image points to a diagnosis of ruptured viscus and immediate surgery is warranted. A case of tubo-ovarian abscess (TOA) presenting with pneumoperitoneum is unusual. Very few cases have been reported where the pneumoperitoneum is caused by an abscess involving the adnexa. We present the case of a 17-year-old patient who presented with acute abdomen and raised inflammatory markers and had laparoscopy for suspected bowel perforation based on the finding of pneumoperitoneum on CT scan. Bowel perforation was ruled out and the findings were consistent with TOA. She had drainage of the abscess, subsequently received intravenous antibiotics and postoperatively recovered well. The pneumoperitoneum could have been due to coinfection with E. coli, as the patient had had a urinary tract infection due to E. coli three weeks before presentation, or slow leakage of the TOA. In conclusion, gas under the diaphragm can be related to non-bowel-related gynaecological pathology, but it vital to rule out sinister causes.

Frequency and determinants of health care utilization for symptomatic reproductive tract infections in rural Indian women: A cross-sectional study

Introduction

The public health burden of reproductive tract infections (RTIs) among women in rural areas of low-income countries is poorly addressed because health care seeking for treatment of RTIs is inadequate. There are gaps in knowledge about whether low care seeking behavior stems from challenges in accessing health care versus women's recognition of and response to RTI-specific disease symptoms. We aim to identify determinants of care seeking behavior and analyze the difference in utilization of health care resources in response to symptoms of an RTI versus non-RTI disease symptoms in rural India. This will aid in the design of interventions that promote RTI care seeking behavior.

Methods

Our analysis uses data from a cross-sectional, population-based surveillance survey among rural, non-pregnant women in Odisha, India, from 2013–2014 (n = 3,600). We utilized bivariate logistic regression to determine the degree that certain determinants are associated with a woman’s likelihood to seek RTI treatment, and chi-Squared tests to assess for differences in health care resources used for non-RTI versus RTI symptoms.

Results

Married women were significantly more likely to seek health care for RTI symptoms (Odds Ratio (OR) = 1.9, 95% Confidence Interval (CI): 1.2–3.0) while unmarried adolescents were less likely to seek treatment (OR = 0.4, CI: 0.2–0.6). There was no association between RTI health care seeking with education level, belief about whether symptoms can be treated, or poverty. The majority (73.8%) of women who did not seek treatment for RTI symptoms reported not seeking treatment because they did not know treatment was needed. Women utilized formal health care providers at a higher rate in response to RTI symptoms than in response to their most recent symptoms of any kind (p = 0.003).

Conclusions

Community-based reproductive health education interventions are needed to increase health care seeking behavior for RTIs in rural Indian women. Interventions should target unmarried women and focus on both sexual health education and access to care.

Clinical value of early laparoscopic therapy in the management of tubo-ovarian or pelvic abscess

Broad-spectrum antibiotics are the conservative treatment for tubo-ovarian abscess (TOA) or pelvic abscess, but the failure rate of antibiotic therapy remains higher in patients with a larger abscess. The present study aimed to evaluate the clinical value of early laparoscopic therapy in the management of TOA or pelvic abscess. A total of 100 patients were enrolled and their medical records were retrospectively analyzed after excluding 6 patients with malignant diseases. Based on the treatment they had received, the patients were divided into a conservative treatment group (n=41) and an early laparoscopic treatment group (n=53). In the conservative treatment group, 21 patients (51.2%) finally received laparoscopic exploration (late laparoscopic treatment group), and 20 patients (48.8%) achieved a success of antibiotic therapy (successful antibiotic therapy group). The cut-off value of abscess size for predicting antibiotic treatment failure was determined using receiver operating characteristic curve analysis. Multivariate logistic regression analyses were used to explore the association between the clinical variables and antibiotic therapy failure in conservative treatment group. The durations of elevated temperature >38.0°C and hospitalization were significantly longer in the conservative treatment group than those in the early laparoscopic treatment group (all P<0.001). The patients in the late laparoscopic treatment group had a larger abscess size than those in the successful antibiotic therapy group (6.2±1.8 cm vs. 4.8±1.4 cm, P=0.008). An abscess diameter of 5.5 cm was obtained as the cut-off of antibiotic failure, and the sensitivity and specificity were 81.0 and 85.0%, respectively. An abscess diameter of ≥5.5 cm was independently associated with antibiotic failure (odds ratio=5.724; 95%CI: 2.025–16.182; P=0.001). In conclusion, early laparoscopic treatment was associated with a better clinical prognosis than conservative treatment and late laparoscopic therapy for TOA or pelvic abscess patients.

Male Partners of Infertile Couples With Seminal Positivity for Markers of Bacterial Vaginosis Have Impaired Fertility

To access the possibility that key markers of bacterial vaginosis (KM-BV) could affect seminal parameters and thus fertility a prospective cohort study was designed (a) to develop rapid and sensitive multiplex polymerase chain reaction (M-PCR) assays to screen 13 key markers of bacterial vaginosis (KM-BV) in semen specimens, (b) to determine the prevalence of KM-BV in semen from randomized male partners of couples seeking fertility evaluation. A total of 229 semen samples were included in the study from males who visited the Sperm Analysis Section of Brazil between October 2015 and March 2016. Eligible men were 18 years or older and had a semen analysis due fertility evaluation (after failing to conceive with their partner after 1 year of unprotected intercourse). Basic seminal parameters were analyzed, and KM-BV was detected by M-PCR assays. M-PCR assays clearly distinguished 13 KM-BV in 146 semen samples (63.8%), mainly Gardnerella vaginalis (50.7%). Some important associations occurred between the presence of KM-BV in semen and changes in seminal parameters. KM-BV is commonly present in the semen of males seeking fertility evaluation and could potentially play significant roles in male subfertility and/or infertility.

Care of Infectious Conditions in an Observation Unit

Infectious conditions such as skin and soft tissue infections (SSTIs), Urogenital infections and peritonsillar abscesses frequently require care beyond emergency stabilization and are well-suited for short term care in an observation unit. SSTIs are a growing problem, partly due to emergence of strains of methicillin-resistant S. aureus (MRSA). Antibiotic choice is guided by the presence of purulence and site of infection. Purulent cellulitis is much more likely to be associated with MRSA. Radiographic imaging should be considered to aid in management in patients who are immunosuppressed, have persistent symptoms despite antibiotic therapy, recurrent infections, sepsis or diabetes.

The natural history of Chlamydia trachomatis infection in women: a multi-parameter evidence synthesis

BACKGROUND AND OBJECTIVES

The evidence base supporting the National Chlamydia Screening Programme, initiated in 2003, has been questioned repeatedly, with little consensus on modelling assumptions, parameter values or evidence sources to be used in cost-effectiveness analyses. The purpose of this project was to assemble all available evidence on the prevalence and incidence of Chlamydia trachomatis (CT) in the UK and its sequelae, pelvic inflammatory disease (PID), ectopic pregnancy (EP) and tubal factor infertility (TFI) to review the evidence base in its entirety, assess its consistency and, if possible, arrive at a coherent set of estimates consistent with all the evidence.

METHODS

Evidence was identified using 'high-yield' strategies. Bayesian Multi-Parameter Evidence Synthesis models were constructed for separate subparts of the clinical and population epidemiology of CT. Where possible, different types of data sources were statistically combined to derive coherent estimates. Where evidence was inconsistent, evidence sources were re-interpreted and new estimates derived on a post-hoc basis.

RESULTS

An internally coherent set of estimates was generated, consistent with a multifaceted evidence base, fertility surveys and routine UK statistics on PID and EP. Among the key findings were that the risk of PID (symptomatic or asymptomatic) following an untreated CT infection is 17.1% [95% credible interval (CrI) 6% to 29%] and the risk of salpingitis is 7.3% (95% CrI 2.2% to 14.0%). In women aged 16-24 years, screened at annual intervals, at best, 61% (95% CrI 55% to 67%) of CT-related PID and 22% (95% CrI 7% to 43%) of all PID could be directly prevented. For women aged 16-44 years, the proportions of PID, EP and TFI that are attributable to CT are estimated to be 20% (95% CrI 6% to 38%), 4.9% (95% CrI 1.2% to 12%) and 29% (95% CrI 9% to 56%), respectively. The prevalence of TFI in the UK in women at the end of their reproductive lives is 1.1%: this is consistent with all PID carrying a relatively high risk of reproductive damage, whether diagnosed or not. Every 1000 CT infections in women aged 16-44 years, on average, gives rise to approximately 171 episodes of PID and 73 of salpingitis, 2.0 EPs and 5.1 women with TFI at age 44 years.

CONCLUSIONS AND RESEARCH RECOMMENDATIONS

The study establishes a set of interpretations of the major studies and study designs, under which a coherent set of estimates can be generated. CT is a significant cause of PID and TFI. CT screening is of benefit to the individual, but detection and treatment of incident infection may be more beneficial. Women with lower abdominal pain need better advice on when to seek early medical attention to avoid risk of reproductive damage. The study provides new insights into the reproductive risks of PID and the role of CT. Further research is required on the proportions of PID, EP and TFI attributable to CT to confirm predictions made in this report, and to improve the precision of key estimates. The cost-effectiveness of screening should be re-evaluated using the findings of this report.

FUNDING

The Medical Research Council grant G0801947.

Evaluation and subsequent optimizations of the quantitative AmpliSens Florocenosis/Bacterial vaginosis-FRT multiplex real-time PCR assay for diagnosis of bacterial vaginosis

Traditional microscopy-based methods for diagnosis of bacterial vaginosis (BV) are underutilized in many settings, and molecular techniques may provide opportunities for rapid, objective, and accurate BV diagnosis. This study evaluated the quantitative AmpliSens Florocenosis/Bacterial vaginosis-FRT multiplex real-time PCR (Florocenosis-BV) assay. Vaginal samples from a previous study including unselected female subjects (n = 163) and using Amsel criteria and 454 pyrosequencing for BV diagnosis were examined with the Florocenosis-BV test and additionally tested for the presence and quantity of Gardnerella vaginalis clades 3 and 4. The Florocenosis-BV assay demonstrated 100% and 98% sensitivity compared with the Amsel criteria and 454 pyrosequencing, respectively, with 91% specificity. The modified Florocenosis-BV assay (detecting also G. vaginalis clades 3 and 4) resulted in 100% sensitivity vs the Amsel criteria and 454 pyrosequencing with specificity of 86% and 88%, respectively. Further optimizations of thresholds for the quantitative parameters used in the kit resulted in 99-100% accuracy vs Amsel criteria and 454 pyrosequencing for selected parameters. The Florocenosis-BV assay is an objective, accurate, sensitive, and specific method for BV diagnosis; however, the performance of the test can be further improved with some minor optimizations.

Pelvic inflammatory disease: improving awareness, prevention, and treatment

Purpose

Pelvic inflammatory disease (PID) is a common disorder of the reproductive tract that is frequently misdiagnosed and inadequately treated. PID and its complications, such as infertility, ectopic pregnancy, and chronic pelvic pain, are preventable by screening asymptomatic patients for sexually transmitted infections (STIs) and promptly treating individuals with STIs and PID.

Recent findings

The rates of adverse outcomes in women with PID are high and disproportionately affect young minority women. There are key opportunities for prevention including improving provider adherence with national screening guidelines for STIs and PID treatment recommendations and patient medication adherence. Nearly half of all eligible women are not screened for STIs according to national quality standards, which may increase the risk of both acute and subclinical PID. Moreover, in clinical practice, providers poorly adhere to the Centers for Disease Control and Prevention recommendations for treatment of PID. Additionally, patients with PID struggle to adhere to the current management strategies in the outpatient setting.

Conclusion

Novel evidence-based clinical and public health interventions to further reduce the rates of PID and to improve outcomes for affected women are warranted. We propose potential cost-effective approaches that could be employed in real-world settings.

Sensitive Detection of Thirteen Bacterial Vaginosis-Associated Agents Using Multiplex Polymerase Chain Reaction

Bacterial vaginosis (BV) is characterized by a polymicrobial proliferation of anaerobic bacteria and depletion of lactobacilli, which are components of natural vaginal microbiota. Currently, there are limited conventional methods for BV diagnosis, and these methods are time-consuming, expensive, and rarely allow for the detection of more than one agent simultaneously. Therefore, we conceived and validated a multiplex polymerase chain reaction (M-PCR) assay for the simultaneous screening of thirteen bacterial vaginosis-associated agents (BV-AAs) related to symptomatic BV: Gardnerella vaginalis, Mobiluncus curtisii, Mobiluncus mulieris, Bacteroides fragilis, Mycoplasma hominis, Atopobium vaginae, Ureaplasma urealyticum, Megasphaera type I, Clostridia-like bacteria vaginosis-associated bacteria (BVABs) 1, 2, and 3, Sneathia sanguinegens, and Mycoplasma genitalium. The overall validation parameters of M-PCR compared to single PCR (sPCR) were extremely high, including agreement of 99.1% and sensitivity, specificity, and positive predictive values of 100.0%, negative predictive value of 97.0%, accuracy of 99.3%, and agreement with Nugent results of 100.0%. The prevalence of BV-AAs was very high (72.6%), and simultaneous agents were detected in 53.0%, which demonstrates the effectiveness of the M-PCR assay. Therefore, the M-PCR assay has great potential to impact BV diagnostic methods in vaginal samples and diminish associated complications in the near future.

Positive Testing for Neisseria gonorrhoeae and Chlamydia trachomatis and the Risk of Pelvic Inflammatory Disease in IUD Users

BACKGROUND

Unintended pregnancies are a major public health problem in the United States, and intrauterine devices (IUDs) are among the most effective reversible birth control methods available. Historically, there have been concerns about IUD use and infection among young and/or high-risk women that may increase the risk of pelvic inflammatory disease (PID) and subsequent infertility.

METHODS

The Contraceptive CHOICE Project (CHOICE) was a prospective cohort study of over 9,000 women 14-45 years of age residing in the St. Louis area who were interested in initiating a new form of reversible contraception. At enrollment, participants were counseled regarding long-acting contraceptive methods with the goal of increasing awareness of all reversible methods available. Participants were also tested for Neisseria gonorrhoeae (GC) and Chlamydia trachomatis (CT) during enrollment and were provided with contraception at no cost for 2-3 years.

RESULTS

We estimate the frequency of self-reported PID in new IUD users compared with women using other contraceptive methods. Among both new IUD users who tested positive for GC and/or CT and those who tested negative, the PID rate was 1% or below.

CONCLUSIONS

Our results demonstrate that IUD use is safe for all women, including women at high risk for sexually transmitted infections.

Sexually transmitted diseases: epidemiological and clinical aspects in adults

Sexually transmitted diseases (STDs) are the first 10 causes of unpleased diseases in young adult women in the world. The concept of STDs includes a series of syndromes caused by pathogens that can be acquired by sexual intercourse or sexual activity.Adolescents and young adults are responsible for only 25% of the sexually active population and they represent almost 50% of all newly acquired STDs.In this way, we evaluated the epidemiological and clinical aspects of most relevant pathogens as Neisseria gonorrhoeae, Chlamydia trachomatis, Treponema pallidum, Haemophilus Ducreyi, Trichomonas vaginalis, herpes simplex virus, human papilloma virus (HPV) with the exception of hepatitis, and HIV infections for which we suggest specific guidelines.To attain this objective, we analyzed the results of epidemiological and clinical aspects of STDs through a review of the literature using MEDLINE and PubMed database for original articles published using the terms "sexual transmitted disease, epidemiology, diagnosis and therapy" from 2005 to 2014.

Pelvic inflammatory disease: current concepts in pathogenesis, diagnosis and treatment

Pelvic inflammatory disease (PID) is characterized by infection and inflammation of the upper genital tract in women and can cause significant reproductive health sequelae for women. Although a definitive diagnosis of PID is made by laparoscopic visualization of inflamed, purulent fallopian tubes, PID is generally a clinical diagnosis and thus represents a diagnostic challenge. Therefore, diagnosis and treatment algorithms advise a high index of suspicion for PID in any woman of reproductive age with pelvic or abdominal pain. Antibiotic therapy should be started early, and given for an adequate period of time to reduce the risk of complications. Coverage for anaerobic organisms should be considered in most cases.

National trends in pelvic inflammatory disease among adolescents in the emergency department

PURPOSE

In 2002, the Centers for Disease Control and Prevention (CDC) broadened the pelvic inflammatory disease (PID) diagnostic criteria to increase detection and prevent serious sequelae of untreated PID. The impact of this change on PID detection is unknown. Our objectives were to estimate trends in PID diagnosis among adolescent emergency department (ED) patients before and after the revised CDC definition and to identify factors associated with PID diagnoses.

METHODS

We performed a retrospective repeated cross-sectional study using the National Hospital Ambulatory Medical Care Survey from 2000 to 2009 of ED visits by 14- to 21-year-old females. We calculated national estimates of PID rates and performed multivariable logistic regression analyses and tests of trends.

RESULTS

During 2000-2009, of the 77 million female adolescent ED visits, there were an estimated 704,882 (95% confidence interval [CI], 571,807-837,957) cases of PID. After the revised criteria, PID diagnosis declined from 5.4 cases per 1,000 United States adolescent females to 3.9 cases per 1,000 (p = .03). In a multivariable model, age ≥17 years (odds ratio, 2.14; 95% CI, 1.25-3.64) and black race (odds ratio, 2.04; 95% CI, 1.36-3.07) were associated with PID diagnosis.

CONCLUSIONS

Despite broadened CDC diagnostic criteria, PID diagnoses did not increase over time. This raises concern about awareness and incorporation of the new guidelines into clinical practice.

Improving notification of sexually transmitted infections: a quality improvement project and planned experiment

BACKGROUND AND OBJECTIVE

Inadequate follow-up of positive sexually transmitted infection (STI) test results is a gap in health care quality that contributes to the epidemic of STIs in adolescent women. The goal of this study was to improve our ability to contact adolescent women with positive STI test results after an emergency department visit.

METHODS

We conducted an interventional quality improvement project at a pediatric emergency department. Phase 1 included plan-do-study-act cycles to test interventions such as provider education and system changes. Phase 2 was a planned experiment studying 2 interventions (study cell phone and patient activation card), using a 2 × 2 factorial design with 1 background variable and 2 replications. Outcomes were: (1) the proportion of women aged 14 to 21 years with STI testing whose confidential telephone number was documented in the electronic medical record; (2) the proportion of STI positive women successfully contacted within 7 days.

RESULTS

Phase 1 interventions increased the proportion of records with a confidential number from 24% to 58% and the proportion contacted from 45% to 65%, and decreased loss to follow-up from 40% to 24%. In phase 2, the proportion contacted decreased after the electronic medical record system changed and recording of the confidential number decreased. Study interventions (patient activation card and study cell phone) had a synergistic effect on successful contact, especially when confidential numbers were less reliably documented.

CONCLUSIONS

Feasible and sustainable interventions such as improved documentation of a confidential number worked synergistically to increase our ability to successfully contact adolescent women with their STI test results.

Limitations of the criteria used to diagnose histologic endometritis in epidemiologic pelvic inflammatory disease research

While endometrial neutrophils and plasma cells are criteria used to diagnose histologic endometritis in epidemiologic pelvic inflammatory disease (PID) research, plasma cell misidentification and nonspecificity may limit the accuracy of these criteria. Herein, we examined: (1) the identification of endometrial plasma cells with conventional methyl green pyronin-based methodology versus plasma cell-specific (CD138) immunostaining, (2) the prevalence of endometrial plasma cells among women at low risk for PID, and (3) endometrial leukocyte subpopulations among women diagnosed with acute or chronic histologic endometritis by conventional criteria. We observed an absence of CD138+ cells in 25% of endometrial biopsies in which plasma cells had been identified by conventional methodology, while additional immunohistochemical analyses revealed indistinguishable inflammatory infiltrates among women diagnosed with acute or chronic endometritis by conventional criteria. Among women considered at lower risk for PID development, flow cytometric analyses detected plasma cells in 30% of endometrial biopsy specimens, suggesting that these cells, even when accurately identified, only nonspecifically identify upper genital tract inflammatory processes. Combined, our findings underscore the limitations of the criteria used to diagnose histologic endometritis in PID-related research and suggest that satisfactory understanding of PID pathogenesis, treatment, and prevention is hindered by continued use of these criteria.

Endometrial leukocyte subpopulations associated with Chlamydia trachomatis, Neisseria gonorrhoeae, and Trichomonas vaginalis genital tract infection

OBJECTIVE

The objective of the study was to characterize endometrial inflammation associated with common genital tract pathogens.

STUDY DESIGN

The design of the study was the immunohistochemical characterization of the endometrial leukocyte subpopulations from 37 controls and 45 women infected with Chlamydia trachomatis, Neisseria gonorrhoeae, or Trichomonas vaginalis.

RESULTS

Compared with uninfected women, endocervical infection with C trachomatis, N gonorrhoeae, or T vaginalis was associated with significant increases in endometrial T cells, B cells, plasma cells, and polymorphonuclear leukocytes. Even more substantial increases in T cell, B cell, and plasma cell numbers were detected among women infected endocervically and endometrially with C trachomatis.

CONCLUSION

Because lower genital tract C trachomatis, N gonorrhoeae, or T vaginalis infections were associated with comparable increases in the same endometrial leukocyte subpopulations, our results suggest the underappreciated involvement of T vaginalis in upper genital tract inflammatory processes. The more robust inflammatory infiltrate associated with C trachomatis endometrial ascension may offer insight into host inflammatory responses associated with pelvic inflammatory disease development.

The association between clinical and pathological features in histologically identified chronic endometritis

Although described originally as the sine qua non for endometriosis, plasma cells have been identified in the endometrium in a variety of other situations. This study of patients who did and did not have plasma cells in their endometrium was carried out to establish the association between the clinical presentations and a variety of pathological characteristics, particularly the presence of inflammatory cells including plasma cells in the endometrium. There was no evidence of an association between any of the presenting clinical conditions and the distribution, intensity or frequency of inflammation, including the component cell types (lymphocytes, eosinophils, plasma cells and neutrophil polymorphs) or stromal pigment, although there was an association between a history of abnormal bleeding and reactive changes in the surface endometrium (P = 0.0259). Thus this study confirms the findings of others that there is no specific clinical syndrome that is associated with the presence of plasma cells in the endometrium.

Diagnosis and treatment of pelvic inflammatory disease

Pelvic inflammatory disease (PID), the infection and inflammation of the female upper genital tract, is a common cause of infertility, chronic pain and ectopic pregnancy. Diagnosis and management are challenging, largely resulting from varying signs and symptoms and a polymicrobial etiology that is not fully delineated. Owing to the potential for serious sequelae, a low threshold for diagnosis and treatment is recommended. As PID has a multimicrobial etiology, including Neisseria gonorrhoeae, Chlamydial trachomatis and anaerobic and mycoplasmal bacteria, treatment of PID should consist of a broad spectrum antibiotic regimen. Recent treatment trials have focused on shorter duration regimens, such as azithromycin, and monotherapies including ofloxacin, but data are sparse. Research comparing sequelae development by differing antimicrobial regimens is extremely limited, but will ultimately shape future treatment guidelines.

Emergency care of urban women with sexually transmitted infections: time to address deficiencies

BACKGROUND

Patient education upon diagnosis of a sexually transmitted infection (STI) may effect changes in high-risk sexual behavior.

OBJECTIVE

Describe emergency department (ED) communication with urban female patients treated for STIs.

METHODS

: This secondary analysis of data collected during a study of ED communication used mixed quantitative and qualitative methods. The medical records of female patients ages 18 to 35 presenting to an urban ED for low abdominal/pelvic pain, gynecological complaints, and urinary symptoms (n = 134) were reviewed for STI testing and treatment proportions. A subsample of 30 audiotaped interactions with women treated for STIs were coded for provider assessment of sexual risks and delivery of STI prevention messages.

RESULTS

Audiotape analysis found sexual histories were very limited and only 17% of women received prevention messages. Provider STI treatment had an estimated overall sensitivity of 46% (95% CI, 24.4%-69.0%) and specificity of 66% (95% CI, 61.8%-70.7%).

CONCLUSIONS

Urban female patients treated for an STI in the ED rarely received recommended STI prevention messages. The study raises policy issues regarding the need for quality indicators in acute STI care. Access to STI treatment in other practice settings or by alternative methods need to be strongly considered.

Purulent vaginal and cervical discharge in the diagnosis of pelvic inflammatory disease

In this structured review, we evaluated purulent vaginal and cervical discharge as diagnostic tests for pelvic inflammatory disease (PID). Using a pretest probability of PID (diagnosed clinically) of 50%, we used the odds-likelihood formulation of Bayes' theorem to calculate post-test probabilities of PID (proven by laparoscopy or endometrial biopsy). If abnormal discharge was present, the post-test probabilities of PID ranged from 50% to 73%, with a mean value of 57%. If abnormal discharge was absent, the post-test probabilities ranged from 24% to 52%, with a mean value of 39%. Therefore, the presence or absence of excess white blood cells in vaginal or cervical discharge was not particularly helpful in confirming or excluding PID in patients in whom the diagnosis was suspected from the clinical examination.

Targeted PCR for detection of vaginal bacteria associated with bacterial vaginosis

Several novel bacterial species have been detected in subjects with bacterial vaginosis (BV) by using broad-range PCR assays, but this approach is insensitive for detecting minority species. We developed a series of taxon-directed 16S rRNA gene PCR assays for more sensitive detection of key vaginal bacteria. We sought to determine the prevalence of each species in the vagina, its association with BV, and the utility of PCR for the microbiological diagnosis of BV. Targeted PCR assays were developed for 17 vaginal bacterial species and applied to 264 vaginal-fluid samples from 81 subjects with and 183 subjects without BV. The results were compared to those of two widely accepted methods for diagnosing BV, the use of clinical findings (Amsel criteria) and the interpretation of vaginal-fluid Gram stains (Nugent criteria). Leptotrichia/Sneathia, Atopobium vaginae, an Eggerthella-like bacterium, Megasphaera species, and three novel bacteria in the order Clostridiales are among the bacterial species significantly associated with BV. PCR detection of either a Megasphaera species or one of the Clostridiales bacteria yielded a sensitivity of 99% and a specificity of 89% for diagnosis of BV compared to the Amsel clinical criteria and a sensitivity of 95.9% and a specificity of 93.7% compared to the Nugent criteria (Gram stain). PCR detection of one or more fastidious bacterial species is a more reliable indicator of BV than detection of bacteria, such as Gardnerella vaginalis, previously linked to BV, highlighting the potential of PCR for the diagnosis of BV.

Host immune consequences of asymptomatic Trichomonas vaginalis infection in pregnancy

OBJECTIVE

The purpose of this study was to define the impact of asymptomatic trichomoniasis on lower genital tract neutrophil activation in pregnancy.

STUDY DESIGN

In this nested cohort study, pelvic examination was performed on 65 asymptomatic pregnant women between 7 and 22 weeks' with vaginal pH > 4.4. Concentrations of cervical interleukin-8 and alpha-defensin were determined using enzyme-linked immunosorbent assay (ELISA). Trichomonas vaginalis was detected by culture.

RESULTS

Median concentrations of vaginal fluid neutrophil defensins and cervical interleukin-8 were significantly greater among women with asymptomatic trichomoniasis (median defensins 18,622 ng/mL, median IL-8 9244 pg/mL) than their uninfected counterparts (median defensins 5144 ng/mL, median IL-8 2044 pg/mL) (P < .001). All women with asymptomatic trichomoniasis had detectable defensin and interleukin-8 concentrations.

CONCLUSION

Asymptomatic trichomoniasis in pregnancy is accompanied by a state of neutrophil activation.

The clinical diagnosis of pelvic inflammatory disease--reuse of electronic medical record data from 189 patients visiting a Swedish university hospital emergency department

BACKGROUND

The pelvic inflammatory disease (PID) diagnosis is mostly based on clinical findings. However, few studies have examined the clinical basis for the diagnostics of PID, which was the aim of this study.

METHODS

A retrospective study was performed of 189 out-patients diagnosed as having PID at the obstetric and gynecological emergency department of a Swedish university hospital. Data on symptoms, signs, pelvic examination and laboratory tests were extracted from the electronic medical records in comparison with the diagnostic criteria of the PID Guideline of the US Center of Disease Control from 2002 (CDC 2002 Guidelines).

RESULTS

Eight symptoms in varying combinations were associated with the PID diagnosis. Most of them are mentioned in the CDC 2002 Guidelines. Detected rates of C. Trachomatis (CT) and N. Gonorrhoeae (NG) were 5% and 0%, respectively, among the tested patients (CT = 52% and NG = 12%). The C-reactive protein was normal in the majority of tested patients.

CONCLUSION

The clinical basis for the diagnostics of PID was largely in accordance with the criteria in the CDC 2002 Guidelines. The limited number of CT tests performed is somewhat disappointing, considering the fact that effective disease prevention includes widespread CT screening. Further studies in different settings are needed in order to analyze how the testing rate for CT can be improved in clinical praxis.

Epidemiology, pathogenesis and treatment of pelvic inflammatory disease

Pelvic inflammatory disease, the infection and inflammation of the female upper genital tract, is a common cause of infertility, chronic pain and ectopic pregnancy. Diagnosis and management are challenging, due largely to a polymicrobial etiology which is not fully delineated. Signs and symptoms of this syndrome vary widely, further complicating diagnosis and treatment. Due to the potential for serious sequelae, a low threshold for diagnosis and treatment is recommended. Since pelvic inflammatory disease has a multimicrobial etiology including Neisseria gonorrhoeae, Chlamydia trachomatis and anaerobic and mycoplasmal bacteria, treatment of pelvic inflammatory disease should be broad spectrum. Recent treatment trials have focused on shorter duration regimens such as azithromycin and monotherapies including ofloxacin, although data are sparse. Research comparing sequelae development by differing antimicrobial regimens is extremely limited, but will ultimately shape future treatment guidelines. Several promising short-duration and monotherapy antibiotic regimens should be evaluated in pelvic inflammatory disease treatment trials for compliance, microbiological and clinical cure, and reduction of subsequent adverse reproductive and gynecological morbidity.

Prediction of pelvic inflammatory disease among young, single, sexually active women

OBJECTIVES

To assess prediction strategies for pelvic inflammatory disease (PID).

STUDY DESIGN

One thousand one hundred seventy women were enrolled based on a high chlamydial risk score. Incident PID over a median of 3 years was diagnosed by either histologic endometritis or Centers for Disease Control and Prevention criteria. A multivariable prediction model for PID was assessed.

RESULTS

Women enrolled using the risk score were young, single, sexually active, and often had prior sexually transmitted infections. Incident PID was common (8.6%). From 24 potential predictors, significant factors included age at first sex, gonococcal/chlamydial cervicitis, history of PID, family income, smoking, medroxyprogesterone acetate use, and sex with menses. The model correctly predicted 74% of incident PID; in validation models, correct prediction was only 69%.

CONCLUSIONS

Our data validate a modified chlamydial risk factor scoring system for prediction of PID. Additional multivariable modeling contributed little to prediction. Women identified by a threshold value on the chlamydial risk score should undergo intensive education and screening.