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1.
Sci Rep ; 14(1): 10812, 2024 05 11.
Article in English | MEDLINE | ID: mdl-38734714

ABSTRACT

Cervical cancer, the second most prevalent cancer affecting women, arises from abnormal cell growth in the cervix, a crucial anatomical structure within the uterus. The significance of early detection cannot be overstated, prompting the use of various screening methods such as Pap smears, colposcopy, and Human Papillomavirus (HPV) testing to identify potential risks and initiate timely intervention. These screening procedures encompass visual inspections, Pap smears, colposcopies, biopsies, and HPV-DNA testing, each demanding the specialized knowledge and skills of experienced physicians and pathologists due to the inherently subjective nature of cancer diagnosis. In response to the imperative for efficient and intelligent screening, this article introduces a groundbreaking methodology that leverages pre-trained deep neural network models, including Alexnet, Resnet-101, Resnet-152, and InceptionV3, for feature extraction. The fine-tuning of these models is accompanied by the integration of diverse machine learning algorithms, with ResNet152 showcasing exceptional performance, achieving an impressive accuracy rate of 98.08%. It is noteworthy that the SIPaKMeD dataset, publicly accessible and utilized in this study, contributes to the transparency and reproducibility of our findings. The proposed hybrid methodology combines aspects of DL and ML for cervical cancer classification. Most intricate and complicated features from images can be extracted through DL. Further various ML algorithms can be implemented on extracted features. This innovative approach not only holds promise for significantly improving cervical cancer detection but also underscores the transformative potential of intelligent automation within the realm of medical diagnostics, paving the way for more accurate and timely interventions.


Subject(s)
Deep Learning , Early Detection of Cancer , Uterine Cervical Neoplasms , Humans , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Female , Early Detection of Cancer/methods , Neural Networks, Computer , Algorithms , Papanicolaou Test/methods , Colposcopy/methods
2.
Prev Med ; 183: 107982, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38701952

ABSTRACT

OBJECTIVE: The fight against cervical cancer requires effective screening together with optimal and on-time treatment along the care continuum. We examined the impact of cervical cancer testing and treatment guidelines on testing practices, and follow-up adherence to guidelines. METHODS: Data from Estonian electronic health records and healthcare provision claims for 50,702 women was used. The annual rates of PAP tests, HPV tests and colposcopies during two guideline periods (2nd version 2012-2014 vs 3rd version 2016-2019) were compared. To assess the adherence to guidelines, the subjects were classified as adherent, over- or undertested based on the timing of the appropriate follow-up test. RESULTS: The number of PAP tests decreased and HPV tests increased during the 3rd guideline period (p < 0.01). During the 3rd guideline period, among 21-29-year-old women, the adherence to guidelines ranged from 38.7% (44.4…50.1) for ASC-US to 73.4% (62.6…84.3) for HSIL and among 30-59-year-old from 49.0% (45.9…52.2) for ASC-US to 65.7% (58.8…72.7) for ASCH. The highest rate of undertested women was for ASC-US (21-29y: 25.7%; 30-59y: 21.9%). The rates of over-tested women remained below 12% for all cervical pathologies observed. There were 55.2% (95% CI 49.7…60.8) of 21-24-year-olds and 57.1% (95% CI 53.6…60.6) of 25-29-year-old women who received HPV test not adherent to guidelines. CONCLUSIONS: Our findings highlighted some shortcomings in guideline adherence, especially among women under 30. The insights gained from this study help to improve the quality of care and, thus, reduce cervical cancer incidence and mortality.


Subject(s)
Early Detection of Cancer , Electronic Health Records , Guideline Adherence , Papanicolaou Test , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Female , Uterine Cervical Neoplasms/prevention & control , Uterine Cervical Neoplasms/diagnosis , Cross-Sectional Studies , Guideline Adherence/statistics & numerical data , Adult , Middle Aged , Vaginal Smears/statistics & numerical data , Estonia , Colposcopy , Papillomavirus Infections/prevention & control , Mass Screening
3.
BMC Cancer ; 24(1): 595, 2024 May 16.
Article in English | MEDLINE | ID: mdl-38750453

ABSTRACT

BACKGROUND: Cervical cancer is the fourth most common cancer among women worldwide, both for incidence and mortality. Prevention relies on screening with a Pap test to detect precancerous lesions, which can then be treated. Access to this screening is currently both improvable and inequitable. Pregnancy may be an ideal moment for women to catch up on their overdue cervical cancer screening. In the general population, women's risk of not being screened is associated with their place of birth and other social factors; this may be true as well among pregnant women. Our objective was to study the association between women's place of birth and their failure to catch up with this screening during pregnancy. METHODS: The 2016 French National Perinatal Survey included 13,147 women who gave birth after 21 weeks of gestation. The association between their place of birth and failure to catch up on this screening (defined by the absence of a Pap test during pregnancy for women overdue for it) was adjusted for age, parity, education level, health insurance, and when they began prenatal care with logistic regression models. RESULTS: Among the women for whom screening was then recommended, 49% were not up to date at the start of pregnancy, and of these, 53% were not caught up before delivery. After adjustment for other risk factors, maternal place of birth was not associated with a higher risk of failure to catch up with this screening during pregnancy. However, factors identified as associated with this risk included a low education level and late start of prenatal care. CONCLUSION: About half of women overdue for cervical cancer screening did not catch up with it during their pregnancy. Professionals should pay special attention to women with lower education levels and late initiation of prenatal care, who constitute a group at high risk of not catching up on this screening during pregnancy.


Subject(s)
Early Detection of Cancer , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/epidemiology , Pregnancy , Adult , France/epidemiology , Vaginal Smears/statistics & numerical data , Papanicolaou Test/statistics & numerical data , Young Adult , Surveys and Questionnaires , Prenatal Care , Mass Screening/methods
4.
New Microbiol ; 47(1): 88-97, 2024 May.
Article in English | MEDLINE | ID: mdl-38700888

ABSTRACT

Human papilloma virus (HPV) is the most common sexually transmitted viral agent in the world and the most common cause of cervical cancer. HPV prevalence and genotype distribution vary by region and demographic data. In a province in the south of Turkey that constantly receives immigration, we aimed to determine the prevalence of high-risk HPV (HR-HPV) genotypes, evaluate the compatibility between cervical Pap smear cytology results patients and HR-HPVs, and make an up-to-date contribution to the elucidation of epidemiological data. In this single-centre study, a total of 12,641 women aged 18 and over were evaluated retrospectively from January 2019 to July 2022. HPV detection and genotyping were analysed by the PCR method. Bethesda scoring was used for Pap smear cytological evaluation. The overall prevalence of HR-HPV was 12.6% (12.7% in Turkish women, 11.2% in foreign women). Among the typed HPVs that were detected, HPV-16 (31%) was found first, followed by HPV-18 (8%). The prevalence of HR-HPV was higher in women with abnormal cytology (977/1762, 55.4%) than in women with normal cytology (620/10879, 5.7%) (p<0.001). Turkey doesn't yet have a national HPV immunisation program. We think that determining the specific regional frequency of other HR-HPVs separately will be useful in the follow-up of the natural course of the type-specific infection and in vaccine studies in the future.


Subject(s)
Emigrants and Immigrants , Genotype , Papillomaviridae , Papillomavirus Infections , Humans , Female , Turkey/epidemiology , Adult , Papillomavirus Infections/virology , Papillomavirus Infections/epidemiology , Papillomaviridae/genetics , Papillomaviridae/isolation & purification , Papillomaviridae/classification , Middle Aged , Young Adult , Retrospective Studies , Adolescent , Cervix Uteri/virology , Cervix Uteri/pathology , Prevalence , Aged , Vaginal Smears , Papanicolaou Test , Uterine Cervical Neoplasms/virology , Uterine Cervical Neoplasms/epidemiology , Human Papillomavirus Viruses
5.
JAMA Netw Open ; 7(5): e248886, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38709536

ABSTRACT

Importance: Lesbian, gay, and bisexual populations face barriers accessing health care in Chicago, Illinois. Objective: To describe the prevalence of up-to-date cervical cancer screening among lesbian, gay, and bisexual vs heterosexual cisgender women in Chicago. Design, Setting, and Participants: This retrospective, cross-sectional, population-based study of cisgender women residing in Chicago was completed from 2020 to 2022 using data from the Healthy Chicago Survey, which is conducted annually by the Chicago Department of Public Health. Participants included cisgender women aged 25 to 64 years with no history of hysterectomy. Respondents who self-identified as lesbian, gay, or bisexual or other than straight, lesbian, or bisexual were coded as lesbian, gay, or bisexual (LGB). Respondents who self-identified as straight were coded as heterosexual. Those who reported having a Papanicolaou test within the past 3 years were considered up-to-date with cervical cancer screening. Data analysis was performed from June to October 2023. Exposures: The primary exposure was sexual orientation. Covariates included age, income level, race, ethnicity, having a primary care practitioner (PCP), and insurance coverage. Main Outcomes and Measures: Prevalence ratios (PRs), log-based regression models, and interaction analysis were used to describe the association of sexual orientation with up-to-date screening. Results: The sample included 5167 cisgender women (447 LGB and 4720 heterosexual), aged 25 to 64 years, with no history of hysterectomy. Among LGB cisgender women, 318 (71.14%) reported previous cervical cancer screening compared with 3632 (76.95%) heterosexual cisgender women. The prevalence of up-to-date screening was 10% lower in the LGB group compared with the heterosexual group (PR, 0.90; 95% CI, 0.82-1.00). In regression analysis, having a PCP (PR, 1.43; 95% CI, 1.29-1.59) was associated with up-to-date screening. In interaction analysis, LGB cisgender women with a PCP were 93% more likely to be up-to-date compared with those without a PCP (PR, 1.93; 95% CI, 1.37-2.72). Conclusions and Relevance: In this cross-sectional study of cervical cancer screening rates between the heterosexual and LGB populations in Chicago, up-to-date cervical cancer screening was associated with having a PCP, regardless of sexual orientation, but this association was greater for LGB individuals. Although LGB populations were less likely to be screened, this disparity may be reduced with more consistent health care access and established care with PCPs.


Subject(s)
Early Detection of Cancer , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/epidemiology , Middle Aged , Adult , Cross-Sectional Studies , Early Detection of Cancer/statistics & numerical data , Retrospective Studies , Chicago/epidemiology , Papanicolaou Test/statistics & numerical data , Sexual Behavior/statistics & numerical data , Sexual and Gender Minorities/statistics & numerical data
6.
Pan Afr Med J ; 47: 57, 2024.
Article in English | MEDLINE | ID: mdl-38646136

ABSTRACT

Introduction: cervical cancer is a health concern worldwide. The South Kivu Province in the Eastern DR Congo is facing many cases of this disease but poorly screened and reported. The objective of this was to determine the prevalence of cell abnormalities at cervical cytology in a tertiary teaching hospital in Bukavu and their association with common risk factors of cervical cancer. Methods: a cross-sectional study was conducted on 142 women attending the Provincial Referral Hospital of Bukavu (HPGRB) from February to December 2021. Quantitative variables were described by their median following their asymmetric distributions and the qualitative variables in absolute and relative frequencies. Then the Chi-square test was used for the comparison of proportion. Results: forty-five percent of the participants had between three and five children. Twenty-two (15.5%) of the 142 patients reported to have two or more sexual partners and 17.5% reported the use of hormonal contraception. The prevalence of cell abnormalities at cervical cytology was 17% of which Low- Grade Squamous Intraepithelial Lesion (LSIL) was the most representative (12.9%). There was no statistically significant association between the common cervical risk factors and the occurrence of cell abnormalities. Conclusion: cervical pre-cancerous lesions are frequent in South Kivu province. The Pap smear test remains an early and affordable screening method and constitutes a secondary prevention strategy in women of 18 years and older in a low-income country such as DR Congo where vaccination against HPV is still hypothetic.


Subject(s)
Early Detection of Cancer , Mass Screening , Papanicolaou Test , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Female , Cross-Sectional Studies , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/epidemiology , Democratic Republic of the Congo/epidemiology , Adult , Papanicolaou Test/statistics & numerical data , Middle Aged , Young Adult , Vaginal Smears/statistics & numerical data , Prevalence , Mass Screening/methods , Risk Factors , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Dysplasia/pathology , Precancerous Conditions/diagnosis , Precancerous Conditions/epidemiology , Precancerous Conditions/pathology , Squamous Intraepithelial Lesions of the Cervix/pathology , Squamous Intraepithelial Lesions of the Cervix/diagnosis , Squamous Intraepithelial Lesions of the Cervix/epidemiology , Adolescent , Aged
7.
BMC Womens Health ; 24(1): 220, 2024 Apr 04.
Article in English | MEDLINE | ID: mdl-38575911

ABSTRACT

PURPOSE: This study aimed to explore the clinical characteristics and risk factors associated with cervical intraepithelial neoplasia (CIN) when coexisting with vaginal intraepithelial neoplasia (VAIN). METHODS: We analyzed the clinical data of 212 patients diagnosed with CIN, including 50 patients with concurrent VAIN. The groups were compared to identify distinct clinical features and independent risk factors for the co-occurrence of CIN and VAIN, using logistic regression analysis. RESULTS: Patients with both CIN and VAIN had a median age of 57, significantly older than the 41-year median age of patients with CIN only (P < 0.05). A higher prevalence of HPV infection (98.0%) was observed in the CIN and VAIN group, with a notable rate of multiple HPV infections (67.3%) compared to the CIN-only group (P < 0.05). Educational levels were significantly lower in the combined CIN and VAIN group (P < 0.05). HPV16, 33, and 52 were identified as significant types for single and multiple infections. Multivariate analysis confirmed age as an independent risk factor for CIN with VAIN (P < 0.05). VAIN3 patients were more likely to exhibit HSIL and ASC-H, whereas VAIN1 cases tended to correspond with ASCUS and LSIL diagnoses. CONCLUSION: The co-occurrence of CIN and VAIN is significantly influenced by patient age and educational level. The findings advocate for more diligent vaginal examination during colposcopy in older patients, particularly those with multiple HPV infections and cytological abnormalities, to enhance the early detection of vaginal lesions and prevent missed diagnoses and treatments. Additionally, the high prevalence of HPV infection, especially with certain types, underscores the importance of HPV monitoring in this patient population.


Subject(s)
Papillomavirus Infections , Uterine Cervical Dysplasia , Uterine Cervical Neoplasms , Vaginal Neoplasms , Humans , Female , Aged , Papillomavirus Infections/complications , Papillomavirus Infections/epidemiology , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Dysplasia/diagnosis , Papanicolaou Test , Risk Factors , Demography , Vaginal Neoplasms/complications , Vaginal Neoplasms/epidemiology , Vaginal Neoplasms/diagnosis , Papillomaviridae
8.
BMC Womens Health ; 24(1): 266, 2024 Apr 27.
Article in English | MEDLINE | ID: mdl-38678278

ABSTRACT

BACKGROUND: Uganda has approximately 1.2 million people aged 15-64 years living with human immunodeficiency virus (HIV). Previous studies have shown a higher prevalence of premalignant cervical lesions among HIV-positive women than among HIV-negative women. Additionally, HIV-infected women are more likely to have human papilloma virus (HPV) infection progress to cancer than women not infected with HIV. We determined the prevalence of premalignant cervical lesions and their association with HIV infection among women attending a cervical cancer screening clinic at Mbarara Regional Referral Hospital (MRRH) in southwestern Uganda. METHODS: We conducted a comparative cross-sectional study of 210 women aged 22-65 years living with HIV and 210 women not living with HIV who were systematically enrolled from March 2022 to May 2022. Participants were subjected to a structured interviewer-administered questionnaire to obtain their demographic and clinical data. Additionally, Papanicolaou smears were obtained for microscopy to observe premalignant cervical lesions. Multivariate logistic regression was performed to determine the association between HIV status and premalignant cervical lesions. RESULTS: The overall prevalence of premalignant cervical lesions in the study population was 17% (n = 72; 95% C.I: 14.1-21.4), with 23% (n = 47; 95% C.I: 17.8-29.5) in women living with HIV and 12% (n = 25; 95% C.I: 8.2-17.1) in women not living with HIV (p < 0.003). The most common premalignant cervical lesions identified were low-grade squamous intraepithelial lesions (LSIL) in both women living with HIV (74.5%; n = 35) and women not living with HIV (80%; n = 20). HIV infection was significantly associated with premalignant lesions (aOR: 2.37, 95% CI: 1.27-4.42; p = 0.007). CONCLUSION: Premalignant cervical lesions, particularly LSILs, were more common in HIV-positive women than in HIV-negative women, highlighting the need to strengthen the integration of cervical cancer prevention strategies into HIV care programs.


Subject(s)
Early Detection of Cancer , HIV Infections , Precancerous Conditions , Uterine Cervical Neoplasms , Humans , Female , Adult , Cross-Sectional Studies , Uganda/epidemiology , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/diagnosis , Middle Aged , Young Adult , Early Detection of Cancer/methods , Early Detection of Cancer/statistics & numerical data , HIV Infections/complications , HIV Infections/epidemiology , Prevalence , Precancerous Conditions/epidemiology , Aged , Papanicolaou Test/statistics & numerical data , Tertiary Care Centers/statistics & numerical data , HIV Seropositivity/epidemiology , HIV Seropositivity/complications , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Dysplasia/diagnosis , Papillomavirus Infections/epidemiology , Papillomavirus Infections/complications , Vaginal Smears/statistics & numerical data
10.
BMC Public Health ; 24(1): 1125, 2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38654197

ABSTRACT

BACKGROUND: Réunion Island is a French overseas territory located in the southern Indian Ocean, with a challenging socioeconomic and multicultural context. Compared to mainland France, Réunion has an overincidence and overmortality of cervical cancer. In order to investigate these two issues, it is important to evaluate the barriers and potential levers to Pap smear screening among female inhabitants of the island. We aimed to identify the specific socio-demographic factors, cultural factors, and living conditions associated with Pap smear screening in Réunion, with a view to increasing uptake. METHODS: We conducted a Knowledge Attitude Behavior and Practices (KABP) survey on cervical cancer screening practices among women aged between 25 and 65 years old living in Réunion Island, selected using random digit dialing sampling. Data were collected using Computer Assistant Telephone Interviews. Weighted chi-squared tests and Student's t-tests were used to compare women who had up-to-date Pap smear screening with women who did not. Weighted logistic models were used to identify the factors associated with not having up-to-date screening. RESULTS: A total of 1000 women were included in the study. Of these, 88.1% had a Pap smear test during the previous three years. Factors independently associated with not being up to date were as follows: aged over 55 (AOR 2.3 [1.2-4.3]), no children (AOR 2.5 [1.4-4.3]), having free universal health coverage (AOR 1.7 [1.1-2.7]), an income per unit consumption lower than 1500€ per month (AOR 2.0 [1.1-3.7]), low health literacy (AOR 2.7 [1.7-4.1]), not consulting a general practitioner in the prior 12 months (AOR 3.6 [2.0-6.5]), and a BMI > 30 (AOR 2.6 [1.5-4.4]). CONCLUSIONS: This is the first large-scale survey focusing on recommended Pap smear screening uptake in Réunion Island. Although self-reported screening incidence was higher than in mainland France, national screening policies must take into account the island's diverse social and cultural characteristics (e.g., an ageing population, low health literacy), while implementing actions to fight against poverty and increase general access to healthcare.


Subject(s)
Health Knowledge, Attitudes, Practice , Papanicolaou Test , Socioeconomic Factors , Uterine Cervical Neoplasms , Humans , Female , Papanicolaou Test/statistics & numerical data , Middle Aged , Adult , Reunion , Aged , Uterine Cervical Neoplasms/diagnosis , Early Detection of Cancer/statistics & numerical data , France , Vaginal Smears/statistics & numerical data , Cultural Characteristics
12.
Article in English | MEDLINE | ID: mdl-38541302

ABSTRACT

INTRODUCTION: Cervical cancer develops slowly and may not manifest signs and symptoms at an early stage. It is worth mentioning the factors that can influence the onset of cervical cancer: smoking, early sexual life, multiple sexual partners, use of oral contraceptives, multiparity, low socioeconomic status, among others. An important risk factor for the onset of this disease is HPV infection, a virus associated with most cases of precursor lesions of this type of cancer. It is essential to understand the comprehensiveness of the scope and adherence to the recommended guidelines throughout the national territory. Therefore, health indicators are important management tools that make it possible to evaluate the services offered, measuring the reach of the target population, the supply and access to preventive exams. OBJECTIVE: To analyze the trend of progress in cervical cancer coverage actions in Brazilian capitals from 2016 to 2021. METHOD: This is an ecological study with temporal analysis that used secondary data referring to process indicators for cervical cancer control actions in women aged between 25 and 64 years living in Brazilian capitals between 2016 and 2021. Aspects related to the quality of care in the cervical cancer prevention program were evaluated using databases of the Cancer Information System (SISCAN), available in DATASUS. The indicators used to monitor and evaluate cervical cancer control actions were (i) cervical coverage, (ii) reason for cervical surgery, and (iii) proportion of cervical cancer every 3 years. RESULTS: In 2016, 410,000 tests were performed and notified in the SISCAN system in all Brazilian capitals, with emphasis on Curitiba, with 65,715 tests performed, and Porto Velho, with 174. In 2020, there was a reduction in exams compared to the previous year in all capitals, with the exception of Palmas, which went from 7655 exams to 9604. It was observed that all the capitals studied showed an increase in the annual percentage variation of Pap smear coverage, with the exception of Brasília, Manaus, Porto Alegre and Porto Velho, which did not show a statistically significant increase (APC = 3.01, 2.746, 3.987, 3.69, respectively). When analyzing the performance of oncotic cytology exams in the capitals according to the years 2019 and 2020, it was observed that only Manaus registered an increase in the number of procedures performed, reaching a difference of 56.5% from one year to the next. CONCLUSION: The ecological analysis revealed a worrying drop in the number of tests performed in 2020, reflecting a sharp drop in coverage actions in Brazilian capitals during the pandemic caused by the SARS-CoV-2 virus. The pandemic has exacerbated existing inequalities and highlighted the need for adaptive strategies to maintain essential screening services in times of crisis.


Subject(s)
COVID-19 , Uterine Cervical Neoplasms , Humans , Female , Adult , Middle Aged , Papanicolaou Test , Uterine Cervical Neoplasms/diagnosis , SARS-CoV-2 , Brazil/epidemiology , Pandemics , COVID-19/epidemiology
13.
Diagn Cytopathol ; 52(6): 313-324, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38516853

ABSTRACT

OBJECTIVE: Cervical cancer, a prevalent and deadly disease among women, comes second only to breast cancer, with over 700 daily deaths. The Pap smear test is a widely utilized screening method for detecting cervical cancer in its early stages. However, this manual screening process is prone to a high rate of false-positive outcomes because of human errors. Researchers are using machine learning and deep learning in computer-aided diagnostic tools to address this issue. These tools automatically analyze and sort cervical cytology and colposcopy images, improving the precision of identifying various stages of cervical cancer. METHODOLOGY: This article uses state-of-the-art deep learning methods, such as ResNet-50 for categorizing cervical cancer cells to assist medical professionals. The method includes three key steps: preprocessing, segmentation using k-means clustering, and classifying cancer cells. The model is assessed based on performance metrics viz; precision, accuracy, kappa score, precision, sensitivity, and specificity. In the end, the high success rate shows that the ResNet50 model is a valuable tool for timely detection of cervical cancer. OUTPUTS: In conclusion, the infected cervical region is pinpointed using spatial K-means clustering and preprocessing operations. This sequence of actions is followed by a progressive learning technique. The Progressive Learning technique then proceeded through several stages: Stage 1 with 64 × 64 images, Stage 2 with 224 × 224 images, Stage 3 with 512 × 512 images, and the final Stage 4 with 1024 × 1024 images. The outcomes show that the suggested model is effective for analyzing Pap smear tests, achieving 97.4% accuracy and approx. 98% kappa score.


Subject(s)
Deep Learning , Papanicolaou Test , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/diagnostic imaging , Female , Papanicolaou Test/methods , Papanicolaou Test/standards , Vaginal Smears/methods
14.
J Med Virol ; 96(3): e29524, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38483062

ABSTRACT

Cervical cancer (CC) is the fourth most common cause of cancer-related deaths amongst women worldwide. CC represents a major global healthcare issue, and Romania ranks the worst in mortality rates amongst EU countries. However, the early detection of CC can be lifesaving. To understand the testing process undergone by women in Romania, we performed a retrospective study, and investigated a cohort of 83 785 cervical cases from Romanian women aged 15-70, obtained in private-based opportunistic screening. We examined the correlation between Pap smear results, human papilloma virus (HPV) genotyping, and the expression of cell cycle markers p16 and Ki-67. Analysis of Pap results revealed approximately 10% abnormal cases, of which high-grade squamous intraepithelial lesions constituted 4.9%. HPV genotyping of 12 185 cases with available Pap results unveiled a range of high-risk HPV (hrHPV) types associated with cervical abnormalities. Notably, 26% of hrHPV-positive cases showed no observable abnormalities. In a subset of cases with abnormal Pap and a type of hrHPV, P16/Ki-67 double-staining was also positive. This study suggests the importance of an integrated diagnostic algorithm that should consider the HPV genotype, Pap smear, and p16/Ki-67 staining. This algorithm should enhance the CC screening accuracy and its management strategies, particularly in those regions with a high disease burden, such as Romania.


Subject(s)
Papillomavirus Infections , Uterine Cervical Dysplasia , Uterine Cervical Neoplasms , Female , Humans , Ki-67 Antigen/analysis , Ki-67 Antigen/metabolism , Papillomavirus Infections/diagnosis , Papillomavirus Infections/epidemiology , Papillomavirus Infections/complications , Retrospective Studies , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/pathology , Papanicolaou Test/methods , Europe, Eastern , Papillomaviridae/genetics , Cyclin-Dependent Kinase Inhibitor p16/metabolism , Vaginal Smears
15.
Pan Afr Med J ; 47: 13, 2024.
Article in French | MEDLINE | ID: mdl-38524109

ABSTRACT

In Morocco, the purpose of the National Cancer Prevention and Control Plan (PNPCC) is to decrease the incidence, mortality, and morbidity attributable to cervical cancer (CC), including the general objective which is to improve women´s care by setting up an organized system for screening, early diagnosis and treatment of this disease, and as operational objectives an: 1) achievement of at least 30% of the annual coverage rate by cervical cancer (CC) screening; 2) achievement of at least 80% of the rate of participation in CC screening per screening cycle; 3) achievement of 100% of the treatment rate for precancerous lesions screened within the framework of the program. CC screening concerns all women aged 30 to 49 years old. Women who have already had CC and pregnant women from the 8th week of amenorrhea until the 6th week postpartum are excluded from the program. The screening test currently used is the naked eye inspection with acetic acid or visual inspection with acetic acid (VIA), which will be followed by a colposcopy exam and biopsy if a precancerous lesion is confirmed. The VIA is carried out at the level of urban and rural health centers, by a trained health professional. Knowing that the pap-smear test was widely used before. Thermo coagulation, also called: cold coagulation, is currently the main treatment for intraepithelial lesions (LIE) that are eligible for this treatment, and finally the national program has introduced anti-HPV vaccination within the national vaccination program (NPI).


Subject(s)
Carcinoma in Situ , Papillomavirus Infections , Uterine Cervical Dysplasia , Uterine Cervical Neoplasms , Female , Humans , Pregnancy , Adult , Middle Aged , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/therapy , Uterine Cervical Neoplasms/pathology , Uterine Cervical Dysplasia/diagnosis , Morocco , Mass Screening , Colposcopy , Papanicolaou Test , Acetic Acid , Early Detection of Cancer , Papillomavirus Infections/complications , Papillomavirus Infections/diagnosis , Papillomavirus Infections/prevention & control
16.
J Immigr Minor Health ; 26(3): 596-603, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38308798

ABSTRACT

Haitian immigrant women living in the U.S. have a higher rate of cervical cancer mortality than any other ethnic group, primarily due to lower rates of screening test utilization. Therefore, it is important to understand the issues affecting their pap smear screening behaviors. We conducted a narrative review of articles from PubMed, SCOPUS, Embase, CINAHL/Nursing, and Psych Info. Inclusion criteria: U.S. Haitian immigrant, screening, cervical cancer, health beliefs/perceptions. Exclusion criteria: HPV-vaccine. Primary barriers: (1) lack of knowledge of cervical cancer, HPV, and pap smears; (2) lack of culturally appropriate dissemination of information; and (3) difficulty obtaining the test. Primary facilitators: (1) provider recommendations, (2) Haitian media to disseminate health information, and (3) having health insurance. This review highlights the points for intervention by health professionals and policy makers to address this group's low pap smear utilization.


Subject(s)
Early Detection of Cancer , Emigrants and Immigrants , Health Knowledge, Attitudes, Practice , Papanicolaou Test , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/ethnology , Haiti/ethnology , Early Detection of Cancer/statistics & numerical data , United States , Vaginal Smears/statistics & numerical data , Patient Acceptance of Health Care/ethnology , Adult , Health Services Accessibility
17.
Acta Cytol ; 68(1): 54-59, 2024.
Article in English | MEDLINE | ID: mdl-38320537

ABSTRACT

INTRODUCTION: Liquid-based cytology (LBC) has replaced conventional smear (CS) in the world. In this study, through a series with a large number of cases, we aimed to make a comparison and general evaluation in all groups, primarily epithelial abnormalities, according to LBC and CS methods. This study was carried out in a private pathology laboratory located in a metropolitan city, where cytological materials sent from many clinics were examined. MATERIAL AND METHODS: There were 165,915 cases whose smears were examined between 2012 and 2020, most of them conventional (131,224 CS, 34,691 LBC). Cases were evaluated on the basis of the Bethesda 2014 classification and divided into sub-diagnostic categories after they were divided into two main groups as "with epithelial abnormalities" and "without." χ2 and Fischer's precision statistical tests were conducted using SPSS 23.0 package. In the CS process, cervical samples were obtained using an endocervical brush and a spatula. Cells were directly spread onto the slides and promptly fixed in 95% ethanol, followed by staining with the standard Papanicolaou stain. For LBC ThinPrep, cervical specimens were gathered using a cervix brush. The brush was washed in a vial and discarded. Finally, cells were isolated through vacuum filtration and transferred to the slide using air pressure. RESULTS: Squamous cell abnormalities (atypical squamous cells of undetermined significance [ASC-US], atypical squamous cells - cannot exclude high-grade squamous intraepithelial lesion [ASC-H], low-grade squamous intraepithelial lesion [LSIL], high-grade squamous intraepithelial lesion [HSIL], squamous cell carcinoma, atypical glandular cells of undetermined significance) were reported in 5,696 (3.43%) cases. ASC (ASC-US + ASC-H)/SIL ratio (1.36/2.04) was found to be 0.67 (recommended Bethesda ratio is <3). ASC-US (p < 0.001), ASC-H (p < 0.001), and HSIL(p < 0.001) detection rate of LBC was found to be significantly higher than CS. ASC-US (1.8/1.2), ASC-H (0.08/0.008), and HSIL (0.6/0.3) case ratios of LBC/CS were found to be significantly higher in LBC. LSIL (1.72/1.66) rate was similar. CONCLUSION: LBC is superior to CS in detecting epithelial lesions. In addition to being used as a screening method, it is clear that it makes a great contribution to reducing cervical carcinomas due to HPV typing. Definitive comments regarding comparison of methods on reactive changes and microorganism detection are challenging. Preanalytical factors might account for these situations.


Subject(s)
Atypical Squamous Cells of the Cervix , Carcinoma in Situ , Carcinoma, Squamous Cell , Squamous Intraepithelial Lesions , Uterine Cervical Dysplasia , Uterine Cervical Neoplasms , Female , Humans , Uterine Cervical Dysplasia/pathology , Vaginal Smears/methods , Cytodiagnosis/methods , Uterine Cervical Neoplasms/pathology , Atypical Squamous Cells of the Cervix/pathology , Carcinoma, Squamous Cell/pathology , Carcinoma in Situ/pathology , Papanicolaou Test
18.
BMC Public Health ; 24(1): 471, 2024 Feb 14.
Article in English | MEDLINE | ID: mdl-38355473

ABSTRACT

BACKGROUND: Cervical cancer remains the fourth most frequently diagnosed cancer among women, and its impact is particularly significant in women residing in less developed countries. This study aims to assess socioeconomic inequality in using Papanicolaou tests, commonly known as Pap tests, which are crucial for detecting cervical cancer. The research also seeks to decompose this inequality, identifying its contributing factors. This investigation is conducted within a sizable population-based study focused on the Kurdish population, with an additional examination of potential variations between urban and rural areas. METHOD: The study utilized baseline data from the Ravansar Non-Communicable Disease Cohort Study (RaNCD), involving 3,074 ever-married women aged 35-65. Asset data was employed to determine socioeconomic status (SES), and Principal Component Analysis was applied. The uptake of Papanicolaou tests was assessed for inequality using the Concentration Index (Cn). Additionally, decomposition analysis was conducted to identify and understand the factors contributing to socioeconomic inequality. RESULTS: The study found that overall, 86% of women reported having undergone cervical cancer screening at least once in their lifetime. The Concentration Index (Cn) for the total population was 0.21 (p < 0.0001), indicating a higher concentration of Papanicolaou test uptake among wealthier groups. In urban areas, the Cn was 0.34 (p < 0.0001), reflecting a significant concentration among the rich. However, in rural areas, the Cn was -0.10 (p = 0.3006), suggesting no significant socioeconomic inequality. Factors such as socioeconomic status (SES), education, and age contributed to reducing inequality, explaining 62.7%, 36.0%, and 1.7% of the observed inequality, respectively. Interestingly, place of residence had a negative influence on inequality. CONCLUSION: The uptake of Papanicolaou tests varies across different socioeconomic status levels, with a higher concentration among wealthier groups. The results enable health policymakers and researchers to tailor health intervention toward increasing public awareness, especially among women with lower levels of education women in economically deprived groups.


Subject(s)
Papanicolaou Test , Uterine Cervical Neoplasms , Humans , Female , Socioeconomic Factors , Socioeconomic Disparities in Health , Cohort Studies , Iran/epidemiology , Uterine Cervical Neoplasms/diagnosis , Early Detection of Cancer
19.
J Cancer Educ ; 39(3): 264-270, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38376746

ABSTRACT

Low and middle-income countries, such as Guatemala, shoulder a disproportionate share of cervical cancer, a preventable disease in high income countries. Tangible obstacles, such as lack of access to health care, cultural differences, and insufficient infrastructure, and facilitators, such as being Ladino, married, and educated, have been identified in the literature related to cervical cancer prevention. The aim of this survey was to explore barriers and facilitators to cervical cancer prevention, comparing rural Indigenous and urban Ladino populations. We surveyed 139 women in two health clinics. Participants answered questions about demographic information, cervical cancer knowledge, and health care behaviors. We analyzed survey data with four bivariate models. Our results suggest vulnerable populations, such as rural Indigenous women who are single, illiterate, and lack education, face higher cervical cancer risk. Partnerships should be formed with health promotors and lay midwives to educate and encourage vulnerable populations to prevent cervical cancer.


Subject(s)
Early Detection of Cancer , Health Knowledge, Attitudes, Practice , Papanicolaou Test , Uterine Cervical Neoplasms , Vulnerable Populations , Humans , Female , Uterine Cervical Neoplasms/prevention & control , Uterine Cervical Neoplasms/diagnosis , Guatemala , Adult , Middle Aged , Vulnerable Populations/statistics & numerical data , Papanicolaou Test/statistics & numerical data , Early Detection of Cancer/statistics & numerical data , Rural Population/statistics & numerical data , Surveys and Questionnaires , Vaginal Smears/statistics & numerical data , Health Services Accessibility , Young Adult , Central American People
20.
J Am Soc Cytopathol ; 13(3): 227-232, 2024.
Article in English | MEDLINE | ID: mdl-38401997

ABSTRACT

INTRODUCTION: Atypical glandular cells (AGC) represent less than 1% of Pap test cases and include a variety of lesions in both the cervix and endometrium. The study aimed to investigate the cytology-histology correlation in AGC patients and to evaluate the clinical utility of hrHPV testing in this diagnostic context. MATERIALS AND METHODS: We identified 491 atypical glandular cells (AGC) cases in our quality analysis (QA) database of 336,064 Pap tests interpreted between March 1, 2013 and July 12, 2016. Of these, 251 cases had follow-up biopsies with hrHPV tests in 148 cases. RESULTS: The most common histologic diagnosis associated with AGC was normal/benign or low-grade lesions, comprising 55% of cervical biopsies and 24% of endometrial biopsies. High-grade lesions were identified in 21% of follow-up biopsies. In patients with AGC cytology, a positive hrHPV test significantly increased the likelihood of cervical HSIL or above lesions on biopsy by 26.4 times (OR = 26.4, 95% CI: 5.8-119.4, P < 0.0001). A positive genotyping result for HPV 16 dramatically increased the likelihood of cervical HSIL or above lesions on biopsy (OR = 84, 95% CI: 12.0-590.5, P < 0.0001). The HPV test had a negative predictive value of 97% (CI: 85%-100%). CONCLUSIONS: Our study confirms that AGC is a significant diagnosis with an overall risk for high-grade cervical or endometrial lesions as high as 21%. hrHPV testing with genotyping is an effective tool for identifying high-risk individuals within the AGC population, with excellent positive and negative predictive values. This approach is valuable for clinical risk stratification and differential diagnosis in patients with AGC cytology.


Subject(s)
Papanicolaou Test , Papillomavirus Infections , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Female , Papillomavirus Infections/diagnosis , Papillomavirus Infections/pathology , Papillomavirus Infections/virology , Papanicolaou Test/methods , Adult , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/virology , Middle Aged , Vaginal Smears/methods , Risk Assessment , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Dysplasia/pathology , Uterine Cervical Dysplasia/virology , Cervix Uteri/pathology , Cervix Uteri/virology , Aged , Biopsy , Endometrium/pathology , Endometrium/virology , Papillomaviridae/isolation & purification , Papillomaviridae/genetics , Young Adult , Endometrial Neoplasms/pathology , Endometrial Neoplasms/diagnosis , Endometrial Neoplasms/virology , Cytology
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