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1.
Georgian Med News ; (350): 88-94, 2024 May.
Article de Anglais | MEDLINE | ID: mdl-39089277

RÉSUMÉ

The objective of this study was to evaluate the prevalence of human papillomavirus (HPV) genotypes and their relationship with different grades of cytological lesions in female students of the Faculty of Health Sciences of the National University of Chimborazo. Material and Methods: The research had a quantitative and descriptive approach, with a comparative analysis of HPV genotypes and cytological lesions in students of the Faculty of Health Sciences. It is an experimental and field study, cross-sectional and retrospective, conducted from November 2023 to March 2024. Thirty students were selected by quota sampling, analyzing conventional cytology and data using SPSS 26. The results showed that 75.8% of the samples had Bethesda Negative results, whereas 24.2% had some degree of cytological lesion (ASC-US 13.7%, L-SIL 8.1%, H-SIL 1.6%, and ASC-H 0.8%). Genotyping showed the high prevalence of HPV, with HPV 18 and 33 being the most common high-risk genotypes. The most common low-risk indicators were HPV 43 and 42. Conclusions: The study confirmed the high prevalence of HPV among female university students and established a significant correlation between high-risk genotypes and the presence of more severe cytological lesions. These findings underscore the need for interventions aimed at prevention and early treatment of HPV, especially in high-risk populations.


Sujet(s)
Génotype , Papillomaviridae , Infections à papillomavirus , Étudiants , Humains , Femelle , Infections à papillomavirus/virologie , Infections à papillomavirus/épidémiologie , Infections à papillomavirus/anatomopathologie , Étudiants/statistiques et données numériques , Universités , Études transversales , Jeune adulte , Papillomaviridae/génétique , Papillomaviridae/isolement et purification , Adulte , Études rétrospectives , Tumeurs du col de l'utérus/virologie , Tumeurs du col de l'utérus/épidémiologie , Tumeurs du col de l'utérus/anatomopathologie , Prévalence , Adolescent , Frottis vaginaux , Dysplasie du col utérin/virologie , Dysplasie du col utérin/épidémiologie , Dysplasie du col utérin/anatomopathologie
2.
Virol J ; 21(1): 173, 2024 Aug 02.
Article de Anglais | MEDLINE | ID: mdl-39095843

RÉSUMÉ

BACKGROUND: Nitric oxide (NO) may contribute to the persistence of high-risk human papillomavirus (hrHPV) infection, which has been linked to the development of premalignant lesions and cervical cancer. Our study aimed to examine the relationship between cervical NO metabolite (NOx) levels, hrHPV infection, and cytopathological findings. Additionally, we assessed cervical NOx levels as a biomarker for predicting hrHPV infection and epithelial atypia. METHODS: The study involved 74 women who attended the Gynecology and Obstetrics outpatient clinics at Cairo University Hospitals between November 2021 and August 2022. Cervical samples were subjected to Pap testing, assessment of NOx levels by the Griess method, and detection of hrHPV DNA by real-time polymerase chain reaction. RESULTS: High-risk HPV was detected in 37.8% of women. EA was found in 17.1% of cases, with a higher percentage among hrHPV-positive than negative cases (35.7% vs. 4.3%, p = 0.001). The most prevalent hrHPV genotype was HPV 16 (89.3%). The cervical NOx level in hrHPV-positive cases was significantly higher (37.4 µmol/mL, IQR: 34.5-45.8) compared to negative cases (2.3 µmol/mL, IQR: 1.2-9.8) (p = < 0.001). Patients with high-grade atypia showed significantly higher NOx levels (38.0 µmol/mL, IQR: 24.6-94.7) in comparison to NILM and low-grade atypia cases (5.0 µmol/mL, IQR: 1.6-33.3 and 34.5 µmol/mL, IQR: 11.7-61.7, respectively) (p = 0.006). Although the NOx levels among hrHPV-positive cases with low-grade atypia (40.4 µmol/mL, IQR: 33.3‒61.8) were higher than those with NILM (36.2 µmol/mL, IQR: 35.7‒44.0) and high-grade atypia (38.0 µmol/mL, IQR: 24.6‒94.7), the difference was not significant (p = 0.771). ROC curve analysis indicated that the cervical NOx cut-off values of > 23.61 µmol/mL and > 11.35 µmol/mL exhibited good diagnostic accuracy for the prediction of hrHPV infection and EA, respectively. CONCLUSIONS: The high prevalence of hrHPV infection, particularly HPV 16, in our hospital warrants targeted treatment and comprehensive screening. Elevated cervical NOx levels are associated with hrHPV infection and high-grade atypia, suggesting their potential use as biomarkers for predicting the presence of hrHPV and abnormal cytological changes.


Sujet(s)
Col de l'utérus , Monoxyde d'azote , Infections à papillomavirus , Humains , Femelle , Infections à papillomavirus/virologie , Infections à papillomavirus/diagnostic , Infections à papillomavirus/anatomopathologie , Monoxyde d'azote/analyse , Monoxyde d'azote/métabolisme , Adulte , Col de l'utérus/virologie , Col de l'utérus/anatomopathologie , Adulte d'âge moyen , Papillomaviridae/génétique , Papillomaviridae/isolement et purification , Tumeurs du col de l'utérus/virologie , Tumeurs du col de l'utérus/anatomopathologie , Tumeurs du col de l'utérus/diagnostic , Jeune adulte , ADN viral/génétique , Dysplasie du col utérin/virologie , Dysplasie du col utérin/anatomopathologie , Dysplasie du col utérin/diagnostic , Marqueurs biologiques/analyse , Génotype , Papillomavirus humain de type 16/génétique , Papillomavirus humain de type 16/isolement et purification , Frottis vaginaux , Test de Papanicolaou , Cytologie
3.
Pan Afr Med J ; 47: 151, 2024.
Article de Anglais | MEDLINE | ID: mdl-38974700

RÉSUMÉ

Introduction: in Senegal, cervical cancer is the leading cause of cancers among women. This study estimated the costs associated with cervical cancer screening and treatment for precancerous lesions from the health system perspective. Methods: we estimated costs for screening, diagnostics, and treatment. We conducted a cross-sectional study in seven regions with primary data collected from 50 health facilities. Data collection included structured questionnaires, with secondary data from the Ministry of Health and other sources. A mixed-methods approach combined ingredients-based costing and financial expenditures to estimate direct medical and non-medical costs. All costs are reported in 2019 USD. Results: average costs were $3.71 for visual inspection with acetic acid, $16.49 for Pap smear, and $46.65 for human papillomavirus deoxyribonucleic acid (HPV DNA) testing. Screening cost drivers were clinical exam supplies and clinical equipment for visual inspection with acetic acid, offsite processing of specimens for Pap smear, and lab equipment costs for HPV DNA procedure. The average cost of diagnosis via colposcopy alone was $25.73, and colposcopy with biopsy/endocervical curettage was $74.96. The average cost of treatment followed by one visit for pre-cancerous lesions was $195.24 for loop electrosurgical excision, $47.35 for cryotherapy, and $32.35 for thermal ablation. Clinical equipment and lab costs were the largest contributors to colposcopy and endocervical curettage/biopsy expenses. Clinical equipment made up the largest portion of cryotherapy, loop electrosurgical excision, and thermoablation costs. Conclusion: this study is the first to estimate the costs of HPV screening and treatment in Senegal, which can be used to inform decision-making on cervical cancer investments.


Sujet(s)
Colposcopie , Dépistage précoce du cancer , Dépistage de masse , Test de Papanicolaou , Tumeurs du col de l'utérus , Frottis vaginaux , Humains , Tumeurs du col de l'utérus/diagnostic , Tumeurs du col de l'utérus/économie , Tumeurs du col de l'utérus/thérapie , Femelle , Sénégal , Études transversales , Dépistage précoce du cancer/économie , Test de Papanicolaou/économie , Frottis vaginaux/économie , Dépistage de masse/économie , Dépistage de masse/méthodes , Colposcopie/économie , Coûts des soins de santé/statistiques et données numériques , Infections à papillomavirus/diagnostic , Infections à papillomavirus/économie , Enquêtes et questionnaires , Tests de détection de l'ADN du virus du papillome humain/économie , Acide acétique , États précancéreux/diagnostic , États précancéreux/économie , États précancéreux/thérapie , Biopsie/économie
4.
BMC Womens Health ; 24(1): 418, 2024 Jul 24.
Article de Anglais | MEDLINE | ID: mdl-39048988

RÉSUMÉ

OBJECTIVE: This study aimed to assess ethnic inequalities in the coverage and utilization of cancer screening services among women in Peru. METHODS: Data from the 2017-2023 Demographic and Family Health Survey in Peru were analyzed to evaluate ethnic disparities in screening coverage for breast and cervical cancer, including clinical breast examination (CBE), Pap smear test (PST), and mammography. Measures such as the GINI coefficient and Slope Index of Inequality (SII) were used to quantify coverage and utilization disparities among ethnic groups. RESULTS: The study included 70,454 women aged 30-69. Among women aged 40-69, 48.31% underwent CBE, 84.06% received PST, and 41.69% underwent mammography. It was found inequalities in coverage for any cancer screening (GINI: 0.10), mammography (GINI: 0.21), CBE (GINI: 0.19), and PST (GINI: 0.06), in 25 Peruvian regions. These inequalities were more pronounced in regions with larger populations of Quechua, Aymara, and Afro-Peruvian women. In rural areas, Quechua or Aymara women (SII: -0.83, -0.95, and - 0.69, respectively) and Afro-Peruvian women (SII: -0.80, -0.92, and - 0.58, respectively) experienced heightened inequalities in the uptake of CBE, mammography, and PST, respectively. Like Quechua or Aymara women (SII: -0.50, SII: -0.52, and SII: -0.50, respectively) and Afro-Peruvian women (SII: -0.50, SII: -0.58, and SII: -0.44, respectively) with only a primary education. CONCLUSION: Ethnic inequalities affect breast and cervical cancer screening coverage across regions in Peru. In Quechua, Aymara, and Afro-Peruvian women the uptake of mammography, CBE, and PST was less frequently than their white or mestizo counterparts. These inequalities are attributed to sociodemographic conditions such as lower education levels and residence in rural or non-capital areas.


Sujet(s)
Tumeurs du sein , Dépistage précoce du cancer , Disparités d'accès aux soins , Mammographie , Test de Papanicolaou , Tumeurs du col de l'utérus , Humains , Femelle , Pérou/ethnologie , Adulte d'âge moyen , Adulte , Dépistage précoce du cancer/statistiques et données numériques , Tumeurs du sein/diagnostic , Tumeurs du sein/ethnologie , Disparités d'accès aux soins/statistiques et données numériques , Disparités d'accès aux soins/ethnologie , Mammographie/statistiques et données numériques , Sujet âgé , Test de Papanicolaou/statistiques et données numériques , Tumeurs du col de l'utérus/diagnostic , Tumeurs du col de l'utérus/ethnologie , Ethnies/statistiques et données numériques , Facteurs socioéconomiques , Frottis vaginaux/statistiques et données numériques
5.
Nan Fang Yi Ke Da Xue Xue Bao ; 44(7): 1217-1226, 2024 Jul 20.
Article de Chinois | MEDLINE | ID: mdl-39051067

RÉSUMÉ

The development of various models for automated images screening has significantly enhanced the efficiency and accuracy of cervical cytology image analysis. Single-stage target detection models are capable of fast detection of abnormalities in cervical cytology, but an accurate diagnosis of abnormal cells not only relies on identification of a single cell itself, but also involves the comparison with the surrounding cells. Herein we present the Trans-YOLOv5 model, an automated abnormal cell detection model based on the YOLOv5 model incorporating the global-local attention mechanism to allow efficient multiclassification detection of abnormal cells in cervical cytology images. The experimental results using a large cervical cytology image dataset demonstrated the efficiency and accuracy of this model in comparison with the state-of-the-art methods, with a mAP reaching 65.9% and an AR reaching 53.3%, showing a great potential of this model in automated cervical cancer screening based on cervical cytology images.


Sujet(s)
Col de l'utérus , Tumeurs du col de l'utérus , Humains , Femelle , Tumeurs du col de l'utérus/anatomopathologie , Tumeurs du col de l'utérus/diagnostic , Col de l'utérus/anatomopathologie , Col de l'utérus/cytologie , Traitement d'image par ordinateur/méthodes , Algorithmes , Frottis vaginaux/méthodes , Cytologie
6.
Sci Data ; 11(1): 743, 2024 Jul 07.
Article de Anglais | MEDLINE | ID: mdl-38972893

RÉSUMÉ

Machine learning-based systems have become instrumental in augmenting global efforts to combat cervical cancer. A burgeoning area of research focuses on leveraging artificial intelligence to enhance the cervical screening process, primarily through the exhaustive examination of Pap smears, traditionally reliant on the meticulous and labor-intensive analysis conducted by specialized experts. Despite the existence of some comprehensive and readily accessible datasets, the field is presently constrained by the limited volume of publicly available images and smears. As a remedy, our work unveils APACC (Annotated PAp cell images and smear slices for Cell Classification), a comprehensive dataset designed to bridge this gap. The APACC dataset features a remarkable array of images crucial for advancing research in this field. It comprises 103,675 annotated cell images, carefully extracted from 107 whole smears, which are further divided into 21,371 sub-regions for a more refined analysis. This dataset includes a vast number of cell images from conventional Pap smears and their specific locations on each smear, offering a valuable resource for in-depth investigation and study.


Sujet(s)
Test de Papanicolaou , Tumeurs du col de l'utérus , Humains , Femelle , Frottis vaginaux , Apprentissage machine
8.
Sci Data ; 11(1): 733, 2024 Jul 06.
Article de Anglais | MEDLINE | ID: mdl-38971865

RÉSUMÉ

A simple and cheap way to recognize cervical cancer is using light microscopic analysis of Pap smear images. Training artificial intelligence-based systems becomes possible in this domain, e.g., to follow the European recommendation to screen negative smears to reduce false negative cases. The first step for such a process is segmenting the cells. A large and manually segmented dataset is required for this task, which can be used to train deep learning-based solutions. We describe a corresponding dataset with accurate manual segmentations for the enclosed cells. Altogether, the APACS23 (Annotated PAp smear images for Cell Segmentation 2023) dataset contains about 37 000 manually segmented cells and is separated into dedicated training and test parts, which could be used for an official benchmark of scientific investigations or a grand challenge.


Sujet(s)
Test de Papanicolaou , Tumeurs du col de l'utérus , Humains , Tumeurs du col de l'utérus/anatomopathologie , Femelle , Traitement d'image par ordinateur/méthodes , Apprentissage profond , Frottis vaginaux
9.
Rev Esp Patol ; 57(3): 182-189, 2024.
Article de Anglais | MEDLINE | ID: mdl-38971618

RÉSUMÉ

OBJECTIVE: To test the diagnostic concordance between microscopic (MI) and digital (DG) observation of cervico-vaginal (CV) cytology in a validation study of the technique. METHODS: Five cytotechnologists (CT) reviewed 888 routine CV cytology cases from the Cervical Pathology Unit of our center over a 2-week period of time. The cases were first observed by MI and at the end of the day the cases were observed by DG. STATISTICAL ANALYSIS USED: Agreement calculated using the Kappa index. RESULTS: Most of the diagnoses corresponded to benign (64%) or inflammatory conditions (14%) and 24% corresponded to the intraepithelial lesion or malignancy (ILM) category. The overall kappa coefficient of concordance was strong (0.87). Among the different CTs it was almost perfect in two, strong in two and moderate in one. In 18 cases (10%) there were discrepancies between techniques in the category of ILM. In 10 (56%) cases there was an overdiagnosis in DG and in 8 (44%) an overdiagnosis in MI. Only in two cases, the diagnostic discrepancy exceeded one degree of difference between lesions, and they were ASCUS or AGUS for DG and CIN 2 for MI. CONCLUSIONS: In this validation test in which routine cases during a two-week period have been used, observing the cases with both techniques on the same day, we have obtained a strong degree of concordance. The discordances obtained have not been considered relevant.


Sujet(s)
Frottis vaginaux , Femelle , Humains , Col de l'utérus/anatomopathologie , Microscopie , Reproductibilité des résultats , Dysplasie du col utérin/anatomopathologie , Dysplasie du col utérin/diagnostic , Tumeurs du col de l'utérus/anatomopathologie , Tumeurs du col de l'utérus/diagnostic , Vagin/anatomopathologie
10.
BMC Womens Health ; 24(1): 405, 2024 Jul 17.
Article de Anglais | MEDLINE | ID: mdl-39020330

RÉSUMÉ

BACKGROUND: Cytological screening remains a high-impact practice, particularly in low-resource settings, for preventing cervical cancer. The examination of screening practices over time and the prevalence of epithelial abnormalities have not been investigated in longitudinal studies in one of the largest countries in the Middle East and Africa. METHODS: Routine healthcare data, between March 1981 and December 2022, were extracted from the database of the Early Cancer Detection Unit in a tertiary referral university hospital in the Greater Cairo Region, Egypt. Cervical smears were obtained using a standardized technique and sent to the cytopathology laboratory for conventional cytology examination by expert pathologists. The anonymous data were analyzed to determine the temporal trend of the number of women screened each year and the prevalence of epithelial abnormalities. RESULTS: Data included the results of satisfactory smears from 95120 women. The mean age (SD) of the women at the time of screening was 38.5 (10.5). None of the included women received an HPV vaccine. Abnormal epithelial cells were reported in 5174 women (5.44%). Of these epithelial abnormalities, the majority were low-grade squamous intraepithelial lesions in 4144 women (4.36%). Other abnormalities included atypical squamous cells in 378 women (0.40%), high-grade squamous intraepithelial lesions in 226 women (0.24%), atypical glandular cells not otherwise specified in 184 women (0.19%), adenocarcinoma in 165 women (0.17%), squamous cell carcinoma in 70 women (0.07%), and atypical glandular cells favoring neoplasms in 7 women (0.01%). Women who were at an early age at first intercourse, those who opted for routine cervical cytology screening, and those who were older at screening were more likely to have epithelial abnormalities. The yearly number of screened women was positively associated with the detection of low-grade squamous intraepithelial lesions (correlation coefficient [95% CI] = 0.84 [0.72, 0.91]) and negatively associated with the detection of squamous cell carcinoma (correlation coefficient [95% CI] = -0.55 [-0.73, -0.29]). CONCLUSIONS: The small number of annually screened Egyptian women and the temporal trend in epithelial abnormalities critically demonstrate the need for establishing and scaling up a structured population-based program to achieve the goal of eliminating cervical cancer.


Sujet(s)
Dépistage précoce du cancer , Centres de soins tertiaires , Tumeurs du col de l'utérus , Frottis vaginaux , Humains , Femelle , Tumeurs du col de l'utérus/diagnostic , Tumeurs du col de l'utérus/anatomopathologie , Tumeurs du col de l'utérus/épidémiologie , Adulte , Dépistage précoce du cancer/statistiques et données numériques , Dépistage précoce du cancer/méthodes , Frottis vaginaux/statistiques et données numériques , Centres de soins tertiaires/statistiques et données numériques , Adulte d'âge moyen , Égypte/épidémiologie , Dysplasie du col utérin/diagnostic , Dysplasie du col utérin/épidémiologie , Dysplasie du col utérin/anatomopathologie , Études longitudinales , Prévalence , Cellules malpighiennes atypiques du col utérin/anatomopathologie , Dépistage de masse/méthodes , Dépistage de masse/statistiques et données numériques , Mileux défavorisés , Cytologie
11.
Afr Health Sci ; 24(1): 127-134, 2024 Mar.
Article de Anglais | MEDLINE | ID: mdl-38962325

RÉSUMÉ

Background: Cervical cancer is a disease of major public health significance which can be prevented by adequate screening. Objective: This study assessed the level of cervical cancer knowledge, attitude to screening and human papillomavirus testing experience in women who self-sampled for cervical cancer screening. Methods: A descriptive cross-sectional study involving 790 women that had human papilloma virus (HPV) testing at the gynae-oncology unit of the Lagos State University Teaching Hospital. Participants were assessed of their cervical cancer screening knowledge, attitude and HPV testing experience. High risk HPV (hr-HPV) nucleic acid testing was funded by the Clinton Health Access Initiative. Results: Majority (76.71%) of the respondents exhibited a high level of knowledge of cervical cancer, its causes, risk factors and prevention; and a positive experience with HPV self-sampling reported in 98.1%. hr-HPV positive rate was 13.4%. The most common reason (43%) for not having a cervical screening done was lack of a doctor's request. The most commonly known method of cervical screening by the respondents was Pap Smear test (55.31%). Conclusion: There is need for more education to improve the level of awareness and uptake of hr-HPV testing for cervical cancer in Lagos. Health care providers are not offering cervical cancer screening enough and this needs to be explored more in future studies.


Sujet(s)
Dépistage précoce du cancer , Connaissances, attitudes et pratiques en santé , Test de Papanicolaou , Papillomaviridae , Infections à papillomavirus , Tumeurs du col de l'utérus , Frottis vaginaux , Humains , Femelle , Tumeurs du col de l'utérus/diagnostic , Tumeurs du col de l'utérus/prévention et contrôle , Tumeurs du col de l'utérus/virologie , Études transversales , Infections à papillomavirus/diagnostic , Adulte , Dépistage précoce du cancer/psychologie , Adulte d'âge moyen , Nigeria , Test de Papanicolaou/statistiques et données numériques , Papillomaviridae/isolement et purification , Frottis vaginaux/psychologie , Frottis vaginaux/statistiques et données numériques , Dépistage de masse/méthodes , Jeune adulte , Acceptation des soins par les patients/statistiques et données numériques , Acceptation des soins par les patients/psychologie , Sujet âgé , Enquêtes et questionnaires , Facteurs socioéconomiques , Virus des Papillomavirus humains
12.
Health Expect ; 27(4): e14118, 2024 Aug.
Article de Anglais | MEDLINE | ID: mdl-38953514

RÉSUMÉ

BACKGROUND: We assessed experiences of human papillomavirus (HPV) vaginal self-sampling and future screening preferences in an ethnically and socio-economically diverse group of women overdue for cervical screening. SETTING AND PARTICIPANTS: A postal questionnaire was embedded in the YouScreen self-sampling trial in England: 32.5% (2712/8338) of kit completers returned the survey. Kit non-completers were encouraged to return a questionnaire, but no responses were received. Participants were ethnically diverse (40.3% came from ethnic minority backgrounds), and 59.1% came from the two most deprived quintiles. Differences in confidence in kit completion, trust in the test results and intention to attend a follow-up test if HPV-positive were evaluated using Pearson's χ2 analyses. Binary logistic regression models explored predictors of a future screening choice and preferences for urine versus vaginal self-sampling. RESULTS: Most kit-completers reported high confidence in self-sampling (82.6%) and high trust in the results (79.9%), but experiences varied by ethnicity and screening status. Most free-text comments were positive but some reported difficulties using the device, pain or discomfort. Most women would opt for self-sampling in the future (71.3% vs. 10.4% for a clinician-taken test) and it was more often preferred by ethnic minority groups, overdue screeners and never attenders. Urine self-tests were preferred to vaginal tests (41.9% vs. 15.4%), especially among women from Asian, Black or Other Ethnic backgrounds. CONCLUSIONS: Kit-completers were confident, found the test easy to complete, and trusted the self-sample results. However, experiences varied by ethnic group and some women highlighted difficulties with the kit. Most women would prefer self-sampling in the future, but it was not a universal preference, so offering a choice will be important. PATIENT OR PUBLIC CONTRIBUTION: We did not have direct patient and public involvement and engagement (PPIE) in the questionnaire design. However, patients and public representatives did input into the design of the YouScreen trial and reviewed the wider study materials (e.g. participant information sheet). TRIAL REGISTRATION: This questionnaire study was embedded in the YouScreen trial. The protocol for the YouScreen trial is available at https://www.isrctn.com/ISRCTN12759467. The National Institute for Health Research 43 Clinical Research Network (NIHR CRN) Central Portfolio Management System (CPMS) ID is 4441934.


Sujet(s)
Infections à papillomavirus , Humains , Femelle , Enquêtes et questionnaires , Études transversales , Adulte , Infections à papillomavirus/diagnostic , Adulte d'âge moyen , Tumeurs du col de l'utérus/diagnostic , Frottis vaginaux , Angleterre , Dépistage précoce du cancer , Préférence des patients , Manipulation d'échantillons/méthodes , Autosoins , Dépistage de masse/méthodes
14.
Ann Acad Med Singap ; 53(6): 342-351, 2024 Jun 28.
Article de Anglais | MEDLINE | ID: mdl-38979990

RÉSUMÉ

Introduction: Good compliance of the management of abnormal results is important for effective cervical screening. This study investigated the rate of surveillance and follow-up outcomes for human papillomavirus (HPV)-positive women in cervical screening. Method: Women on surveillance by repeat HPV testing were identified in a prospectively managed database. Data retrieved included women's age, country residence status, history of colposcopy, HPV-DNA status on the first and repeat tests, dates of follow-up during the 5 years since the initial screening, and histological diagnosis of cervical lesions. The main outcome measures were compliance rate for repeat HPV testing, regression and persistence rates of HPV subtypes, and detection rate of high-grade lesions (CIN2+). Results: This analysis included 680 residents in the community, mean age 44.8 (95% confidence interval 20.1-69.5) years. The compliance rate of repeat testing was 28.2% at 12 months and, cumulatively, 42.8% for the entire 5-year follow-up period. The rates were unaffected by age (P=0.5829) nor prior colposcopy (P=0.1607). There were 5 (1.7%) cases of CIN2+ detected. Of 391 women on longitudi-nal follow-up, 194 (60.8%) cleared their HPV infection. Some women with multiple HPV infection cleared 1 but not the other subtype(s). Thus, the regression rate was 90.3% for HPV-16, 87.0% for HPV-18 and 65.2% for HPV-12-others (P=0.001). The annualised HPV regression rates were similar for HPV subtypes and for each follow-up year. Conclusion: Surveillance of HPV positivity is clinically important for detecting high-grade lesions. Despite a high regression rate of HPV, surveillance hesitancy is a serious weakness in routine cervical screening.


Sujet(s)
Colposcopie , Dépistage précoce du cancer , Infections à papillomavirus , Dysplasie du col utérin , Tumeurs du col de l'utérus , Humains , Femelle , Tumeurs du col de l'utérus/diagnostic , Tumeurs du col de l'utérus/virologie , Adulte , Adulte d'âge moyen , Dépistage précoce du cancer/méthodes , Infections à papillomavirus/diagnostic , Sujet âgé , Dysplasie du col utérin/diagnostic , Dysplasie du col utérin/virologie , Dysplasie du col utérin/épidémiologie , Jeune adulte , Observance par le patient/statistiques et données numériques , Papillomaviridae/isolement et purification , Papillomaviridae/génétique , Singapour/épidémiologie , Dépistage de masse/méthodes , Études prospectives , Frottis vaginaux , Virus des Papillomavirus humains
16.
Sci Rep ; 14(1): 17486, 2024 Jul 30.
Article de Anglais | MEDLINE | ID: mdl-39080413

RÉSUMÉ

The present study was aimed at showing the importance of HPV DNA status and the clinical history of the patients required by the cytologist for accurate reporting. A total of 1250 symptomatic women who attended the gynaecology outpatient department of the Mahavir Cancer Sansthan and Nalanda Medical College, Patna, for pap smear examinations were screened and recruited for the study. Due to highly clinical symptoms out of the negative with inflammatory smears reported, one hundred and ten patients were randomly advised for biopsy and HPV 16/18 DNA analysis by a gynaecologist to correlate negative smears included in the study. Pap smear reports revealed that 1178 (94.24%) were negative for intraepithelial lesions (NILM) with inflammatory smears, 23 (1.84%) smears showed low-grade squamous intraepithelial lesions (LSIL), 12 (0.96%) smears showed high-grade squamous intraepithelial lesions, and 37 (2.96%) smears showed an atypical squamous cell of undetermined significance (ASC-US). A biopsy of 110 out of 1178 (NILM) patients revealed that 15 (13.63%) women had cervical cancer, 29 women had CIN I, 17 women had CIN II + CIN III, 35 women had benign cervical changes, and 14 women had haemorrhages. On the other hand, HPV 16/18 DNA was detected as positive in 87 out of 110. The high positivity of HPV in biopsied cases where frank cervical cancer and at-risk cancer were also observed in the negative smear-screened patients reveals that the HPV status and clinical history of the patients will be quite helpful to the cytologist for accurate reporting, and suggests that a negative HPV DNA result may be a stronger predictor of cervical cancer risk than a negative Pap test.


Sujet(s)
ADN viral , Test de Papanicolaou , Infections à papillomavirus , Tumeurs du col de l'utérus , Humains , Femelle , Adulte , Tumeurs du col de l'utérus/virologie , Tumeurs du col de l'utérus/diagnostic , Tumeurs du col de l'utérus/anatomopathologie , ADN viral/analyse , ADN viral/génétique , Adulte d'âge moyen , Infections à papillomavirus/virologie , Infections à papillomavirus/diagnostic , Dysplasie du col utérin/virologie , Dysplasie du col utérin/diagnostic , Dysplasie du col utérin/anatomopathologie , Frottis vaginaux , Papillomavirus humain de type 18/génétique , Papillomavirus humain de type 18/isolement et purification , Papillomavirus humain de type 16/génétique , Papillomavirus humain de type 16/isolement et purification , Jeune adulte , Sujet âgé , Biopsie
17.
BMC Cancer ; 24(1): 913, 2024 Jul 29.
Article de Anglais | MEDLINE | ID: mdl-39080593

RÉSUMÉ

BACKGROUND: In China, the national cervical cancer screening protocol involves initial testing for high-risk human papillomavirus (hrHPV), followed by cytology for hrHPV-positive cases. This study evaluates the effectiveness of PAX1 methylation (PAX1m) analysis in identifying precancerous or cancerous lesions in cervical samples from Chinese women positive for non-16/18 hrHPV strains. METHODS: Between February 2022 and March 2023, 281 cervical samples from non-16/18 hrHPV-positive women underwent cytological examination and PAX1m analysis. The study assessed the statistical relationship between PAX1m levels and the presence of cervical lesions, comparing the diagnostic performance of PAX1m to conventional cytology. RESULTS: A significant association was found between PAX1 methylation levels and the risk of CIN2 + and CIN3 + lesions, with 47 instances of CIN2 + detected. Odds ratios (ORs) for moderate and high PAX1m levels were 8.86 (95% CI: 2.24-42.17) and 166.32 (95% CI: 47.09-784.97), respectively. The area under the ROC curve for PAX1m in identifying CIN2 + lesions was 0.948 (95% CI: 0.895-0.99). PAX1m demonstrated similar sensitivity and negative predictive value (NPV) to cytology but reduced the colposcopy referral rate from 47.7% with cytology alone to 25.6% with PAX1m, showing superior specificity and positive predictive value across age groups. CONCLUSIONS: PAX1 methylation is a strong indicator of CIN2 + and CIN3 + risk, offering diagnostic performance comparable to cytology with the added benefit of reduced unnecessary colposcopy referrals. These findings support the use of PAX1m analysis as a reliable tool for triaging non-16/18 hrHPV-positive women in outpatient settings.


Sujet(s)
Méthylation de l'ADN , Dépistage précoce du cancer , Facteurs de transcription PAX , Infections à papillomavirus , Triage , Dysplasie du col utérin , Tumeurs du col de l'utérus , Humains , Femelle , Tumeurs du col de l'utérus/diagnostic , Tumeurs du col de l'utérus/virologie , Tumeurs du col de l'utérus/génétique , Adulte d'âge moyen , Dépistage précoce du cancer/méthodes , Adulte , Facteurs de transcription PAX/génétique , Infections à papillomavirus/virologie , Infections à papillomavirus/diagnostic , Infections à papillomavirus/complications , Infections à papillomavirus/génétique , Triage/méthodes , Dysplasie du col utérin/diagnostic , Dysplasie du col utérin/virologie , Dysplasie du col utérin/génétique , Chine/épidémiologie , Sujet âgé , Courbe ROC , Marqueurs biologiques tumoraux/génétique , Frottis vaginaux
18.
Rev Assoc Med Bras (1992) ; 70(6): e20240045, 2024.
Article de Anglais | MEDLINE | ID: mdl-39045962

RÉSUMÉ

OBJECTIVE: The objective of this study was to assess the clinical and uterine cervix characteristics of patients displaying vaginal discharge with positive results for Mycoplasma sp. and/or Ureaplasma spp. METHODS: An analytical cross-sectional study involving women aged 18-45 years was conducted. Microbiological assessments included Ureaplasma and Mycoplasma cultures, as well as human papillomavirus hybrid capture using ecto and endocervix swabs. All tests were two-tailed, and significance was set at p<0.05. RESULTS: Among 324 women, Ureaplasma prevalence was 17.9%, and Mycoplasma prevalence was 3.1%. The Ureaplasma-positive group exhibited a higher frequency of urinary tract infections (39.1 vs. 19%, p=0.002) and human papillomavirus (39.7 vs. 12.8%, p≤0.001) compared with controls. The Mycoplasma-positive group showed a higher frequency of non-contraceptive use compared with controls (66.2 vs. 30.0%, p=0.036). Abnormal colposcopic findings were more prevalent in the Mycoplasma/Ureaplasma-positive group than in controls (positive: 65% vs. control: 35%, p=0.001). Pap smear findings did not differ between the groups. CONCLUSION: Ureaplasma spp. was associated with urinary tract infections and human papillomavirus, while the presence of Mycoplasma sp. was linked to reduced contraceptive use. When analyzing both pathogens together, a higher frequency of abnormal colposcopic findings was observed, with no difference in cytological findings in the positive group.


Sujet(s)
Col de l'utérus , Infections à Mycoplasma , Mycoplasma , Infections à Ureaplasma , Ureaplasma , Humains , Femelle , Adulte , Infections à Ureaplasma/microbiologie , Infections à Ureaplasma/épidémiologie , Études transversales , Infections à Mycoplasma/épidémiologie , Infections à Mycoplasma/microbiologie , Ureaplasma/isolement et purification , Jeune adulte , Adulte d'âge moyen , Adolescent , Col de l'utérus/microbiologie , Col de l'utérus/anatomopathologie , Mycoplasma/isolement et purification , Perte vaginale/microbiologie , Prévalence , Infections à papillomavirus/microbiologie , Infections urinaires/microbiologie , Infections urinaires/épidémiologie , Brésil/épidémiologie , Frottis vaginaux
19.
Glob Public Health ; 19(1): 2381685, 2024 01.
Article de Anglais | MEDLINE | ID: mdl-39052956

RÉSUMÉ

The self-collection of vaginal swabs and point-of-care testing and treatment of sexually transmitted infections (STIs) is reported from several low-and middle-income countries. However, the reporting on women's experiences of self-collection and same-day testing and treatment of STIs is less well described. In this paper, we present the acceptability of self-collected vaginal swabs and point-of-care testing and treatment among pregnant women enrolled in a clinical trial (Women and Newborn Trial of Antenatal Intervention and Management - WANTAIM) in Papua New Guinea. Semi-structured interviews were conducted among 54 women enrolled into WANTAIM to identify the acceptability of the test and treat approach. Analysis of qualitative data used deductive and inductive thematic analysis applying Sekhon, Cartwright and Francis' acceptability theoretical framework. Most women reported that they understood that the vaginal swab was to identify infections that may affect their unborn baby; however, some were unsure about the specific infections they were being tested for. Among women who tested positive for an STI, some were unsure what they had been treated for. Overall, the self-collection of vaginal swabs for STI testing during pregnancy was highly acceptable.


Sujet(s)
Acceptation des soins par les patients , Maladies sexuellement transmissibles , Humains , Femelle , Papouasie - Nouvelle-Guinée , Grossesse , Maladies sexuellement transmissibles/diagnostic , Adulte , Jeune adulte , Entretiens comme sujet , Analyse sur le lieu d'intervention , Manipulation d'échantillons , Frottis vaginaux , Adolescent , Autosoins , Recherche qualitative , Complications infectieuses de la grossesse/diagnostic
20.
J Nepal Health Res Counc ; 22(1): 45-49, 2024 Jun 21.
Article de Anglais | MEDLINE | ID: mdl-39080936

RÉSUMÉ

BACKGROUND: Cervical cancer screening is the priority activity of the government. Visual inspection with Acetic acid (VIA), Pap smear Liquid-based cytology, and HPV DNA testing are different methods of screening. VIA-based screening is the cost-effective method of screening in a resource-constrained setting like in our country as this doesn't require cyto-histological testing, can be performed by trained paramedics too, and is as accurate as a cytological test. The aim is to explore pre-cancer cervical lesions by screening women in the community by visual inspection using acetic-acid. METHODS: Community-based cross-sectional study done at a health camp setting for three months from March to June 2023. The married non-pregnant women of 30-60 years were screened. Descriptive tests as well as sub-group analysis performed by Chi-Square tests. RESULTS: From ten community health camps, 1255 cases were screened and screen positivity was 14.3%. Positive results were proportionately distributed to all parity by 13-19%. Half of the positive results (47.2%) were in the 34-40 age group. There were no significant differences in screen positivity by parity or vaginal discharge. Menopausal women had 7.7% screen positivity. CONCLUSIONS: The prevalence of VIA positivity in the community was found double the previous facility-based prevalence; and there was no significant difference by parity, menopausal status, and vaginal discharge. The positivity was more in 30-45 years of age.


Sujet(s)
Acide acétique , Dépistage précoce du cancer , Tumeurs du col de l'utérus , Humains , Femelle , Adulte d'âge moyen , Études transversales , Adulte , Tumeurs du col de l'utérus/diagnostic , Népal/épidémiologie , Dépistage précoce du cancer/méthodes , États précancéreux/diagnostic , Frottis vaginaux/méthodes
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