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Journal of Obstetrics and Gynaecology :... Dec 2024The trend of increasing caesarean section (CS) rates brings up questions related to subfertility. Research regarding the influence of CS on assisted reproduction... (Review)
Review
BACKGROUND
The trend of increasing caesarean section (CS) rates brings up questions related to subfertility. Research regarding the influence of CS on assisted reproduction techniques (ART) is conflicting. A potential mechanism behind CS-induced subfertility is intra uterine fluid resulting from a caesarean scar defect or niche. The vaginal microbiome has been repeatedly connected to negative ART outcomes, but it is unknown if the microbiome is changed in relation to a niche.
METHODS
This systematic review describes literature investigating the effect of a niche on live birth rates after assisted reproduction. Furthermore, studies investigating a difference in microbial composition in subfertile persons with a niche compared to no niche are evaluated. Pubmed, Embase and Web of Science were searched on March 2023 for comparative studies on both study questions. Inclusion criteria were i.e., English language, human-only studies, availability of the full article and presence of comparative pregnancy data on a niche. The quality of the included studies and their risk of bias were assessed using the Newcastle-Ottawa scale for cohort studies. The results were graphically displayed in a forest plot.
RESULTS
Six retrospective cohort studies could be included on fertility outcomes, with a total of 1083 persons with a niche and 3987 without a niche. The overall direction of effect shows a negative impact of a niche on the live birth rate (pooled aOR 0.58, 95% CI 0.48-0.69) with low-grade evidence. Three studies comparing the microbiome between persons with and without a CS could be identified.
CONCLUSION
There is low-grade evidence to conclude that the presence of a niche reduces live birth rates when compared to persons without a niche. The theory that a caesarean has a negative impact on pregnancy outcomes because of dysbiosis promoted by the niche is interesting, but there is no sufficient literature about this.
Topics: Humans; Female; Cicatrix; Cesarean Section; Pregnancy; Reproductive Techniques, Assisted; Vagina; Microbiota; Infertility, Female; Live Birth; Fertility; Adult; Birth Rate
PubMed: 38775009
DOI: 10.1080/01443615.2024.2349714 -
PloS One 2020Candida africana is a pathogenic species within the Candida albicans species complex. Due to the limited knowledge concerning its prevalence and antifungal... (Meta-Analysis)
Meta-Analysis
Candida africana is a pathogenic species within the Candida albicans species complex. Due to the limited knowledge concerning its prevalence and antifungal susceptibility profiles, a comprehensive study is overdue. Accordingly, we performed a search of the electronic databases for literature published in the English language between 1 January 2001 and 21 March 2020. Citations were screened, relevant articles were identified, and data were extracted to determine overall intra-C. albicans complex prevalence, geographical distribution, and antifungal susceptibility profiles for C. africana. From a total of 366 articles, 41 were eligible for inclusion in this study. Our results showed that C. africana has a worldwide distribution. The pooled intra-C. albicans complex prevalence of C. africana was 1.67% (95% CI 0.98-2.49). Prevalence data were available for 11 countries from 4 continents. Iran (3.02%, 95%CI 1.51-4.92) and Honduras (3.03%, 95% CI 0.83-10.39) had the highest values and Malaysia (0%) had the lowest prevalence. Vaginal specimens were the most common source of C. africana (92.81%; 155 out of 167 isolates with available data). However, this species has also been isolated from cases of balanitis, from patients with oral lesions, and from respiratory, urine, and cutaneous samples. Data concerning the susceptibility of C. africana to 16 antifungal drugs were available in the literature. Generally, the minimum inhibitory concentrations of antifungal drugs against this species were low. In conclusion, C. africana demonstrates geographical variation in prevalence and high susceptibility to antifungal drugs. However, due to the relative scarcity of existing data concerning this species, further studies will be required to establish more firm conclusions.
Topics: Antifungal Agents; Candida; Candida albicans; Candidiasis, Vulvovaginal; Drug Resistance, Fungal; Female; Humans; Microbial Sensitivity Tests; Prevalence; Vagina
PubMed: 32817677
DOI: 10.1371/journal.pone.0237046 -
Archivos Espanoles de Urologia Apr 2021Pelvic organ prolapse (POP) has a general incidence of > 10% in the female population of the Western world. The pessary is a silicone device, inserted into the vagina to...
Pelvic organ prolapse (POP) has a general incidence of > 10% in the female population of the Western world. The pessary is a silicone device, inserted into the vagina to provide support to the pelvic organs. It is used as a conservative treatment to improve prolapse symptoms.OBJECTIVES: To evaluate the effectiveness of pessary treatment in pelvic organ prolapse through a systematic review of the current literature.MATERIAL AND METHODS: A Scoping Review was carried out based on the PRISMA guidelines for the development of systematic reviews. The PICO research question was asked, the sources of information were selected, and the eligibility criteria were established. Subsequently, the descriptors in health sciences and keywords, combined with Boolean operators, were appliedin each of the search engines. RESULTS: A total of 19 references were included in the analysis of this work. To delimit the data extraction, the information was divided into four dimensions: improvements in symptoms related to POP and quality of life, sexual function; discontinuation, justification for discontinuation and complications. CONCLUSIONS: The pessary produces positive effects on the quality of life of women with POP, with good satisfaction rates. The main reasons for the interruption include: inability to retain the pessary, discomfort, and the desire for surgery.
Topics: Female; Humans; Pelvic Organ Prolapse; Pessaries; Quality of Life; Treatment Outcome; Vagina
PubMed: 33818427
DOI: No ID Found -
BMC Pregnancy and Childbirth Mar 2022Screening for maternal anogenital Group B streptococci (GBS) colonization in pregnancy with initiation of intravenous intrapartum antibiotic prophylaxis as indicated has... (Meta-Analysis)
Meta-Analysis
Vaginal-perianal or vaginal-perineal compared with vaginal-rectal culture-based screening for Group B Streptococci (GBS) colonization during the third trimester of pregnancy: a systematic review and meta-analysis.
BACKGROUND
Screening for maternal anogenital Group B streptococci (GBS) colonization in pregnancy with initiation of intravenous intrapartum antibiotic prophylaxis as indicated has led to a significant reduction in the incidence of neonatal GBS infection. This study aims to evaluate the agreement between vaginal-perianal or vaginal-perineal culture and the more typically used vaginal-rectal culture for screening for maternal anogenital GBS colonization in the third trimester of pregnancy.
METHODS
Eligible English-language studies published until January 2020 were retrieved from Scopus, Web of Science, PubMed, Embase, and ClinicalTrials.gov databases. Studies were compiled that assessed for GBS colonization utilizing vaginal-perianal or vaginal-perineal culture and vaginal-rectal culture during the third trimester of pregnancy. Nonoriginal research articles and studies that did not assess pregnant patients, did not use culture-based screening, or did not compare vaginal-perianal or vaginal-perineal culture with vaginal-rectal culture were excluded. The search identified 559 articles with three prospective cohort studies that met inclusion criteria, including 643 participants. Quality was assessed using the Newcastle-Ottawa Scale, and risk of bias was assessed using the Risk of Bias In Non-randomized Studies of Interventions (ROBINS-I) tool. Patient characteristics and associated pain with specimen collection were abstracted. Meta-analyses of both the raw agreement and the Cohen's kappa statistic were performed.
RESULTS
Within the three included studies, the range of GBS detection was 17.6-34.0%, consistent with the anticipated prevalence of GBS colonization reported in earlier publications. For both raw agreement and Cohen's kappa coefficient, the test for heterogeneity was not significant, indicating low heterogeneity among studies. The pooled estimate of the raw agreement was 0.97 (95%CI 0.95-0.98) and of the Cohen's kappa coefficient was 0.91 (95% CI: 0.87-0.95), indicating (according to the Landis and Koch criteria) an "almost perfect" agreement between the compared clinical tests. In the two studies that assessed procedure-related patient discomfort, vaginal-rectal swabbing caused more discomfort.
CONCLUSION
Use of vaginal-perineal culture for assessment of maternal GBS colonization is comparable to the more typically utilized vaginal-rectal culture and is associated with less discomfort.
Topics: Female; Humans; Mass Screening; Perineum; Pregnancy; Pregnancy Complications, Infectious; Pregnancy Trimester, Third; Rectum; Specimen Handling; Streptococcal Infections; Streptococcus agalactiae; Vagina
PubMed: 35287615
DOI: 10.1186/s12884-022-04546-w -
Frontiers in Cellular and Infection... 2021Exogenous sex steroids within hormonal contraception and menopausal hormone therapy (MHT) have been used for family planning and management of menopausal symptoms,...
BACKGROUND
Exogenous sex steroids within hormonal contraception and menopausal hormone therapy (MHT) have been used for family planning and management of menopausal symptoms, without consideration of their effects on the vaginal microbiota. This is largely because their use predates our understanding of the importance of the vaginal microbiome on human health. We conducted a systematic review (PROSPERO: CRD42018107730) to determine the influence of exogenous sex steroids, stratified by oestrogen-containing or progestin-only types of contraception, and MHT on the vaginal microbiome, as measured by molecular methods.
METHODS
Embase, PubMed and Medline were searched for relevant literature published through to December 1st 2020. Eligible studies reported on the effect of specific exogenous sex steroids on the vaginal microbiome using a molecular method. Data regarding the 'positive', 'negative' or 'neutral' effect of each type of contraceptive or MHT on the vaginal microbiome was extracted and summarised. A positive effect reflected sex steroid exposure that was associated with increased abundance of lactobacilli, a change to, or maintenance of, an optimal vaginal microbiota composition, or a decrease in bacterial diversity (specifically reflecting a low-diversity optimal microbiota state), relative to the control group. An exogenous sex steroid was designated as having a negative effect on the vaginal microbiome if it resulted in opposing effects (i.e. loss of lactobacilli, a non-optimal microbiota state). When no significant change was found, this was considered neutral/inconclusive.
RESULTS
We identified 29 manuscripts reporting on the effect of exogenous sex steroids on the vaginal microbiome; 25 investigating hormonal contraceptives, and 4 investigating MHT. Oestrogen-containing contraception, particularly reflecting the combined oestrogen and progestin-containing contraceptive pill, had a positive effect on the composition of the vaginal microbiota. Progestin-only contraception, particularly reflecting depo-medroxyprogesterone acetate, had mixed effects on the microbiota. Among post-menopausal women using MHT, exogenous oestrogen applied topically was associated with increased prevalence of lactobacilli.
CONCLUSION
Our findings suggest that oestrogen-containing compounds may promote an optimal vaginal microbiota, which could have clinical applications. The impact of progestin-only contraceptives on the vaginal microbiota is less clear; more data is needed to determine how progestin-only contraceptives contribute to adverse reproductive and sexual health outcomes.
Topics: Female; Humans; Lactobacillus; Microbiota; Vagina
PubMed: 34869054
DOI: 10.3389/fcimb.2021.732423 -
BMC Cancer Nov 2019Women with ovarian cancer can present with a variety of symptoms and signs, and an increasing range of tests are available for their investigation. A number of...
BACKGROUND
Women with ovarian cancer can present with a variety of symptoms and signs, and an increasing range of tests are available for their investigation. A number of international guidelines provide advice for the initial assessment of possible ovarian cancer in symptomatic women. We systematically identified and reviewed the consistency and quality of these documents.
METHODS
MEDLINE, Embase, guideline-specific databases and professional organisation websites were searched in March 2018 for relevant clinical guidelines, consensus statements and clinical pathways, produced by professional or governmental bodies. Two reviewers independently extracted data and appraised documents using the Appraisal for Guidelines and Research Evaluation 2 (AGREEII) tool.
RESULTS
Eighteen documents from 11 countries in six languages met selection criteria. Methodological quality varied with two guidance documents achieving an AGREEII score ≥ 50% in all six domains and 10 documents scoring ≥50% for "Rigour of development" (range: 7-96%). All guidance documents provided advice on possible symptoms of ovarian cancer, although the number of symptoms included in documents ranged from four to 14 with only one symptom (bloating/abdominal distension/increased abdominal size) appearing in all documents. Fourteen documents provided advice on physical examinations but varied in both the examinations they recommended and the physical signs they included. Fifteen documents provided recommendations on initial investigations. Transabdominal/transvaginal ultrasound and the serum biomarker CA125 were the most widely advocated initial tests. Five distinct testing strategies were identified based on the number of tests and the order of testing advocated: 'single test', 'dual testing', 'sequential testing', 'multiple testing options' and 'no testing'.
CONCLUSIONS
Recommendations on the initial assessment and investigation for ovarian cancer in symptomatic women vary considerably between international guidance documents. This variation could contribute to differences in the way symptomatic women are assessed and investigated between countries. Greater research is needed to evaluate the assessment and testing approaches advocated by different guidelines and their impact on ovarian cancer detection.
Topics: Biomarkers, Tumor; CA-125 Antigen; Early Detection of Cancer; Female; Humans; International Cooperation; Membrane Proteins; Ovarian Neoplasms; Practice Guidelines as Topic; Ultrasonography; Vagina
PubMed: 31676000
DOI: 10.1186/s12885-019-6211-2 -
BJOG : An International Journal of... Oct 2021To evaluate uterine tamponade devices' effectiveness for atonic refractory postpartum haemorrhage (PPH) after vaginal birth and the effect of including them in...
OBJECTIVES
To evaluate uterine tamponade devices' effectiveness for atonic refractory postpartum haemorrhage (PPH) after vaginal birth and the effect of including them in institutional protocols.
SEARCH STRATEGY
PubMed, EMBASE, CINAHL, LILACS, POPLINE, from inception to January 2021.
STUDY SELECTION
Randomised and non-randomised comparative studies.
OUTCOMES
Composite outcome including surgical interventions (artery ligations, compressive sutures or hysterectomy) or maternal death, and hysterectomy.
RESULTS
All included studies were at high risk of bias. The certainty of the evidence was rated as very low to low. One randomised study measured the effect of the condom-catheter balloon compared with standard care and found unclear results for the composite outcome (relative risk [RR] 2.33, 95% CI 0.76-7.14) and hysterectomy (RR 4.14, 95% CI 0.48-35.93). Three comparative studies assessed the effect of including uterine balloon tamponade in institutional protocols. A stepped wedge cluster randomised controlled trial suggested an increase in the composite outcome (RR 4.08, 95% CI 1.07-15.58) and unclear results for hysterectomy (RR 4.38, 95% CI 0.47-41.09) with the use of the condom-catheter or surgical glove balloon. One non-randomised study showed unclear effects on the composite outcome (RR 0.33, 95% CI 0.11-1.03) and hysterectomy (RR 0.49, 95% CI 0.04-5.38) after the inclusion of the Bakri balloon. The second non-randomised study found unclear effects on the composite outcome (RR 0.95, 95% CI 0.32-2.81) and hysterectomy (RR 1.84, 95% CI 0.44-7.69) after the inclusion of Ebb or Bakri balloon.
CONCLUSIONS
The effect of uterine tamponade devices for the management of atonic refractory PPH after vaginal delivery is unclear, as is the role of the type of device and the setting.
TWEETABLE ABSTRACT
Unclear effects of uterine tamponade devices and their inclusion in institutional protocols for atonic refractory PPH after vaginal delivery.
Topics: Adult; Delivery, Obstetric; Female; Hemostatic Techniques; Humans; Hysterectomy; Ligation; Maternal Mortality; Postpartum Hemorrhage; Pregnancy; Treatment Outcome; Uterine Artery; Uterine Artery Embolization; Uterine Balloon Tamponade; Vagina
PubMed: 34165867
DOI: 10.1111/1471-0528.16819 -
Ultrasound in Obstetrics & Gynecology :... Nov 2021To evaluate the accuracy of transvaginal sonography (TVS) for detecting parametrial deep endometriosis, using laparoscopy as the reference standard. (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To evaluate the accuracy of transvaginal sonography (TVS) for detecting parametrial deep endometriosis, using laparoscopy as the reference standard.
METHODS
A search was performed in PubMed/MEDLINE and Web of Science for studies evaluating TVS for detecting parametrial involvement in women with suspected deep endometriosis, as compared with laparoscopy, from January 2000 to December 2020. The Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) tool was used to evaluate the quality of the studies. Pooled sensitivity, specificity and positive and negative likelihood ratios for TVS in the detection of parametrial deep endometriosis were calculated, and the post-test probability of parametrial deep endometriosis following a positive or negative test was determined.
RESULTS
The search identified 134 citations. Four studies, comprising 560 patients, were included in the analysis. The mean prevalence of parametrial deep endometriosis at surgery was 18%. Overall, the pooled estimated sensitivity, specificity and positive and negative likelihood ratios of TVS in the detection of parametrial deep endometriosis were 31% (95% CI, 10-64%), 98% (95% CI, 95-99%), 18.5 (95% CI, 8.8-38.9) and 0.70 (95% CI, 0.46-1.06), respectively. The diagnostic odds ratio was 26 (95% CI, 10-68). Heterogeneity was high. Visualization of a lesion suspected to be parametrial deep endometriosis on TVS increased significantly the post-test probability of parametrial deep endometriosis.
CONCLUSION
TVS has high specificity but low sensitivity for the detection of parametrial deep endometriosis. © 2021 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
Topics: Adult; Endometriosis; Female; Humans; Peritoneum; Predictive Value of Tests; Prevalence; Sensitivity and Specificity; Ultrasonography; Vagina
PubMed: 34358386
DOI: 10.1002/uog.23754 -
Langenbeck's Archives of Surgery Jun 2024Natural orifice specimen extraction (NOSE) is an alternative to conventional transabdominal retrieval. We aimed to compare outcomes following transvaginal specimen... (Meta-Analysis)
Meta-Analysis Comparative Study
AIM
Natural orifice specimen extraction (NOSE) is an alternative to conventional transabdominal retrieval. We aimed to compare outcomes following transvaginal specimen extraction (TVSE) and transabdominal specimen extraction (TASE) in minimally invasive abdominal surgery.
METHODS
An electronic database search of PubMed, Embase and CENTRAL was performed from inception until March 2023. Comparative studies evaluating TVSE versus TASE in adult female patients were included. Studies involving transanal NOSE, endoluminal surgery, or TVSE with concomitant hysterectomy were excluded. Weighted mean differences (WMD) and odds ratio were estimated for continuous and dichotomous outcomes respectively. Primary outcomes were postoperative day 1 (POD1) pain and length of stay (LOS). Secondary outcomes were operative time, rescue analgesia, morbidity, and cosmesis. A review of sexual, oncological, and technical outcomes was performed.
RESULTS
Thirteen studies (2 randomised trials, 11 retrospective cohort studies), involving 1094 patients (TASE 583, TVSE 511), were included in the analysis. Seven studies involved colorectal disease and six assessed gynaecological conditions. TVSE resulted in significantly decreased POD1 pain (WMD 1.08, 95% CI: 0.49, 1.68) and shorter LOS (WMD 1.18 days, 95% CI: 0.14, 2.22), compared to TASE. Operative time was similar between both groups, with fewer patients requiring postoperative rescue analgesia with TVSE. Overall morbidity rates, as well as both wound-related and non-wound related complication rates were better with TVSE, while anastomotic morbidity rates were comparable. Cosmetic scores were higher with TVSE. TVSE did not result in worse sexual or oncological outcomes.
CONCLUSION
TVSE may be feasible and beneficial compared to TASE when performed by proficient laparoscopic operators, using appropriate selection criteria. Continued evaluation with prospective studies is warranted.
Topics: Humans; Female; Minimally Invasive Surgical Procedures; Vagina; Natural Orifice Endoscopic Surgery; Length of Stay; Operative Time
PubMed: 38829526
DOI: 10.1007/s00423-024-03361-5 -
BMC Cancer May 2021Adjuvant endocrine therapies are known to induce undesirable adverse effects such as vasomotor, vaginal and musculoskeletal symptoms among breast cancer patients. Drugs...
Association of single nucleotide polymorphisms of cytochrome P450 enzymes with experience of vasomotor, vaginal and musculoskeletal symptoms among breast cancer patients: a systematic review.
BACKGROUND
Adjuvant endocrine therapies are known to induce undesirable adverse effects such as vasomotor, vaginal and musculoskeletal symptoms among breast cancer patients. Drugs used in these therapies are often metabolised by cytochrome P450 (CYP) enzymes, in which their metabolising activities can be modified by single nucleotide polymorphisms (SNP) in CYP genes and CYP genotypes. This review aims to explore whether SNPs or genotypes of CYP are associated with the occurrence, frequency and severity of vasomotor, vaginal and musculoskeletal symptoms in breast cancer patients on adjuvant endocrine therapies.
METHODS
A literature review was conducted using five electronic databases, resulting in the inclusion of 14 eligible studies, and their findings were presented narratively. Selected items from the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist were used for critical appraisal of the reporting quality of the included studies.
RESULTS
Most of the included studies showed that SNPs or genotypes of CYP that modify its metabolising activity have no effect on the occurrence, frequency or severity of vasomotor symptoms, including hot flashes. One study showed no correlation of these genetic variations in CYP with musculoskeletal symptoms, and no data were available on the association between such genetic variations and vaginal symptoms.
CONCLUSIONS
Overall, genetic variations in CYP have no effect on the experience of hot flashes among breast cancer patients. We recommend exploration of the link between the active metabolites of chemotherapeutic drugs and the molecules shown to affect the occurrence or severity of hot flashes, and the establishment of the relationship between such genetic variations and patients' experience of musculoskeletal and vaginal symptoms. Subgroup analyses based on patients' duration of adjuvant endocrine therapies in such studies are recommended.
Topics: Antineoplastic Agents, Hormonal; Arthralgia; Atrophy; Breast Neoplasms; Chemotherapy, Adjuvant; Cytochrome P-450 Enzyme System; Estrogen Antagonists; Estrogens; Female; Genetic Predisposition to Disease; Hot Flashes; Humans; Mastectomy; Observational Studies as Topic; Polymorphism, Single Nucleotide; Severity of Illness Index; Tamoxifen; Vagina
PubMed: 34006247
DOI: 10.1186/s12885-021-08268-8