1
|
Hussein K, Kokwaro G, Wafula F, Kassie GM. Assessing the influence of the health system on access to cervical cancer prevention, screening, and treatment services at public health centers in Addis Ababa, Ethiopia. PLoS One 2024; 19:e0300152. [PMID: 38820249 PMCID: PMC11142424 DOI: 10.1371/journal.pone.0300152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 02/22/2024] [Indexed: 06/02/2024] Open
Abstract
BACKGROUND Cervical cancer is the second leading cause of cancer death among Ethiopian women. This study aimed to assess the influence of the health system on access to cervical cancer prevention, screening, and treatment services at public health centers in Addis Ababa, Ethiopia. METHODS This study used a cross-sectional survey design and collected data from 51 randomly selected public health centers in Addis Ababa. Open Data Kit was used to administer a semi-structured questionnaire on Android tablets, and SPSS version 26 was used to analyze the descriptive data. RESULTS In the study conducted at 51 health centers, cervical cancer prevention and control services achieved 61% HPV vaccination for girls, 79% for cervical cancer awareness messages, 80% for precancer lesion treatment, and 71% for cervical screening of women. All health centers were performing cervical screening mostly through visual inspection with acetic acid due to the inconsistent availability of HPV DNA tests and the lack of Pap smear tests. In 94% of health centers, adequate human resources were available. However, only 78% of nurses, 75% of midwives, 35% of health officers, and 49% of health extension workers received cervical cancer training in the 24 months preceding the study. Women had provider choices in only 65% of health centers, and 86% of the centers lacked electronic health records. In 41% of the health centers, the waiting time was 30 minutes or longer. About 88% and 90% of the facilities lacked audio and video cervical cancer messages, respectively. CONCLUSION This study revealed that the annual cervical cancer screening achievement was on track to fulfill the WHO's 90-70-90 targets by 2030. We recommend that decision-makers prioritize increasing HPV vaccination rates, enhancing messaging, reducing wait times, and implementing electronic health records to improve access to cervical cancer services in Addis Ababa.
Collapse
Affiliation(s)
- Kemal Hussein
- Institute of Healthcare Management, Strathmore University, Nairobi, Kenya
| | - Gilbert Kokwaro
- Institute of Healthcare Management, Strathmore University, Nairobi, Kenya
| | - Francis Wafula
- Institute of Healthcare Management, Strathmore University, Nairobi, Kenya
| | - Getnet Mitike Kassie
- International Institute for Primary Healthcare – Ethiopia (IPHC-E), Addis Ababa, Ethiopia
| |
Collapse
|
2
|
Félix MM, Tavares MV, Santos IP, Batista de Carvalho ALM, Batista de Carvalho LAE, Marques MPM. Cervical Squamous Cell Carcinoma Diagnosis by FTIR Microspectroscopy. Molecules 2024; 29:922. [PMID: 38474435 DOI: 10.3390/molecules29050922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/09/2024] [Accepted: 02/17/2024] [Indexed: 03/14/2024] Open
Abstract
Cervical cancer was considered the fourth most common cancer worldwide in 2020. In order to reduce mortality, an early diagnosis of the tumor is required. Currently, this type of cancer occurs mostly in developing countries due to the lack of vaccination and screening against the Human Papillomavirus. Thus, there is an urgent clinical need for new methods aiming at a reliable screening and an early diagnosis of precancerous and cancerous cervical lesions. Vibrational spectroscopy has provided very good results regarding the diagnosis of various tumors, particularly using Fourier transform infrared microspectroscopy, which has proved to be a promising complement to the currently used histopathological methods of cancer diagnosis. This spectroscopic technique was applied to the analysis of cryopreserved human cervical tissue samples, both squamous cell carcinoma (SCC) and non-cancer samples. A dedicated Support Vector Machine classification model was constructed in order to categorize the samples into either normal or malignant and was subsequently validated by cross-validation, with an accuracy higher than 90%.
Collapse
Affiliation(s)
- Maria M Félix
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Mariana V Tavares
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
- Gynaecology Department, Portuguese Oncology Institute of Porto, 4200-072 Porto, Portugal
| | - Inês P Santos
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Ana L M Batista de Carvalho
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Luís A E Batista de Carvalho
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Maria Paula M Marques
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
- Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, 3000-456 Coimbra, Portugal
| |
Collapse
|
3
|
Yadav J, Agarwal S, Jain A. Comparison of Visual Inspection Methods with Pap Smear as Screening Test for Premalignant Lesions of the Cervix. J Midlife Health 2024; 15:19-24. [PMID: 38764929 PMCID: PMC11100638 DOI: 10.4103/jmh.jmh_201_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 05/21/2024] Open
Abstract
Aim and Objectives The present study was done to compare the visual inspection methods with Pap smear as a screening test for premalignant lesions of the cervix. Materials and Methods The present observational prospective study was done at the Department of Obstetrics and Gynecology at Teerthanker Mahaveer Medical College and Research Center for 18 months. All study subjects were subjected to Papanicolaou smear, VIA, and VILI examination. If any of these tests were found positive, then a colposcopy and cervical biopsy were done. Results The sensitivity of Pap, VIA, VILI, and colposcopy was 52.63%, 84.21%, 73.68%, and 84.21%, respectively. The specificity of Pap, VIA, VILI, and colposcopy was 60.0%, 80.0%, 60.0%, and 80.0%, respectively. The accuracy of Pap, VIA, VILI, and colposcopy was 54.17%, 83.33%, 70.83%, and 83.33%, respectively. Conclusion It is well known that VIA and VILI are very easy to carry out and apply. Even technically they do not cost much, consume less tax and can be applied to all the patients. Even the results are calculated in a faster manner which helps in chalking out the plan in an easy way.
Collapse
Affiliation(s)
- Jyoti Yadav
- Department of Obstetrics and Gynaecology, Teerthanker Mahaveer Medical College and Research Centre, Teerthanker Mahavir University, Moradabad, India
| | - Shubhra Agarwal
- Department of Obstetrics and Gynaecology, Teerthanker Mahaveer Medical College and Research Centre, Teerthanker Mahavir University, Moradabad, India
| | - Aayushi Jain
- Department of Obstetrics and Gynaecology, Teerthanker Mahaveer Medical College and Research Centre, Teerthanker Mahavir University, Moradabad, India
| |
Collapse
|
4
|
Ogunsola OO, Ajayi OA, Ojo TO, Osayi E, Wudiri K, Amoo B, Ayoka-Ikechukwu R, Olumeyan OO, Ifechelobi C, Okonkwo P, Akinro Y. Cervical cancer screening and treatment for PLWHIV: experiences from an innovative program in Nigeria. Reprod Health 2023; 20:125. [PMID: 37633884 PMCID: PMC10463408 DOI: 10.1186/s12978-023-01658-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/30/2023] [Indexed: 08/28/2023] Open
Abstract
BACKGROUND We evaluated cervical cancer program for women living with HIV (WLHIV) to determine program screening rate, primary case finder screening accuracy and treatment and post-treatment screening rate among screen-positive patients. METHODS A ten-month review of cervical cancer program data among WLHIV aged 15-49 years on HIV care across forty-one comprehensive ART sites, supported by APIN (a PEPFAR implementing partner) for cervical cancer screening and treatment in Nigeria, was conducted from October 2020 to July 2021. Initial screening was done using visual inspection with acetic acid (VIA) followed by a gynaecologist expert review through a program-designed software named AVIVA, as a confirmatory test. Associations were measured between the primary case finder screening accuracy and study covariates at p-value of 0.05. RESULTS About 10,289 asymptomatic women aged 15-49 years living with HIV were screened for cervical cancer by primary case finders using VIA-based screening test. About 732 (7.1%) had a positive screening test suggestive of precancerous lesions or cervical cancer. Three hundred and fifteen (43.0%) of VIA positive women had treatment using thermal ablation and less than one-third (21.6%) of those treated came back for post-treatment screening test. Primary case finder screening sensitivity, specificity, positive predictive and negative predictive accuracy using gynaecologist review as confirmatory test were 60.8%, 71.5%, 41.7% and 84.5% respectively. Overall screening accuracy was 68.8%. CONCLUSION AND RECOMMENDATIONS This innovative approach to cervical cancer screening among WLHIV yielded modest results in preventing program error and wastages. Wider deployment of expert-based reviews of VIA though AVIVA software might be a veritable approach to improve screening accuracy in low resource settings.
Collapse
|
5
|
Rayner M, Welp A, Stoler MH, Cantrell LA. Cervical Cancer Screening Recommendations: Now and for the Future. Healthcare (Basel) 2023; 11:2273. [PMID: 37628471 PMCID: PMC10454304 DOI: 10.3390/healthcare11162273] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/08/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Cervical cancer is the fourth most common cancer worldwide, with over 600,000 new cases annually and approximately 350,000 cancer-related deaths per year. The disease burden is disproportionately distributed, with cancer-related mortality ranging from 5.2 deaths per 100,000 individuals in highly-developed countries, to 12.4 deaths per 100,000 in less-developed countries. This article is a review of the current screening recommendations and potential future recommendations.
Collapse
Affiliation(s)
| | | | | | - Leigh A. Cantrell
- Department of Obstetrics and Gynecology, University of Virginia, Charlottesville, VA 22908, USA
| |
Collapse
|
6
|
Robinson MS, England M, Luthy KE, Peterson NE. HPV Infection and Vaccination: A Question and Answer Guide for School Nurses. NASN Sch Nurse 2023; 38:134-144. [PMID: 36757046 DOI: 10.1177/1942602x221146758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
School nurses frequently interact with school-age children and their parents/guardians regarding vaccinations. As a trusted source of information, the school nurse is in a unique position to share vaccine information with parents/guardians and school-age children that may dispel myths and, consequently, improve vaccination rates. Nevertheless, some parents/guardians are still reluctant to vaccinate their school-age children against Human Papilloma Virus (HPV) for a variety of reasons. Common barriers to HPV vaccination include a lack of understanding of the vaccine's purpose, concerns regarding the vaccine's safety, and insufficient recommendation from healthcare workers. However, school nurses have many duties in addition to ensuring vaccine compliance. School nurses may have difficulty remaining up-to-date on evidence-based answers to parents'/guardians' questions about HPV vaccine. Therefore, the purpose of this article is to provide school nurses with a quick reference question and answer guide to parents'/guardians' common HPV-related vaccination questions.
Collapse
|
7
|
Smith SK, Nwosu O, Edwards A, Zerihun M, Chung MH, Suvada K, Ali MK. Performance of screening tools for cervical neoplasia among women in low- and middle-income countries: A systematic review and meta-analysis. PLOS GLOBAL PUBLIC HEALTH 2023; 3:e0001598. [PMID: 36963095 PMCID: PMC10021669 DOI: 10.1371/journal.pgph.0001598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/24/2023] [Indexed: 02/25/2023]
Abstract
OBJECTIVE To evaluate the performance of visual inspection with acetic acid (VIA) testing, visual inspection with Lugol's iodine (VILI), primary HPV testing, and conventional Pap smear in detecting CIN2+ among non-pregnant women aged 30-65 in LMICs between 1990 and 2020. DESIGN Systematic review and meta-analysis. SETTING AND PARTICIPANTS Low- and middle-income countries, non-pregnant women aged 30-65. METHODS CENTRAL (Cochrane Library), CINAHL, Embase, Global Health, PubMed, and Web of Science databases were systematically searched to identify studies evaluating the performance of cervical cancer screening methods in LMICs. A diagnostic test accuracy meta-analysis was conducted to evaluate the performance of 4 screening methods in detecting CIN2+ relative to biopsy or cytology reference standards. Pooled statistics for sensitivity, specificity, diagnostic odds ratios, and summary receiver operating characteristic curves were determined for each method. Subgroup analyses were performed to examine whether there was variation in performance based on different reference standards for defining CIN2+, specifically: colposcopy-directed biopsy, biopsy alone, colposcopy alone, or liquid-based cytology. RESULTS Eighteen studies were identified through systematic review. Twelve studies were included in meta-analysis; 11 were cross-sectional and 1 was a randomized controlled clinical trial. The remaining six of the eighteen studies were inclided in a narrative syntehsis. Pooled estimates for sensitivity for VIA, VILI, primary HPV testing, and conventional Pap smear were 72.3%, 64.5%, 79.5%, and 60.2%, respectively; pooled estimates for specificity were 74.5%, 68.5%, 72.6%, and 97.4%, respectively; the diagnostic odds ratios were 7.31, 3.73, 10.42, 69.48, respectively; and the area under the summary receiver operating characteristic curves were 0.766, 0.647, 0.959, and 0.818, respectively. Performance of the screening method varied based on the reference standard used; pooled estimates using either colposcopy-directed biopsy or biopsy alone as the reference standard generally reported lower estimates; pooled estimates using either colposcopy alone or liquid-based cytology as references reported higher estimates. CONCLUSIONS AND IMPLICATIONS This meta-analysis found primary HPV testing to be the highest performing cervical cancer screening method in accurately identifying or excluding CIN2+. Further evaluation of performance at different CIN thresholds is warranted.
Collapse
Affiliation(s)
- Sabrina K Smith
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Oguchi Nwosu
- Department of Family and Preventive Medicine, School of Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Alex Edwards
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Meseret Zerihun
- Department of Family Medicine, Addis Abba University, Addis Abba, Ethiopia
| | - Michael H Chung
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
- Division of Infectious Diseases, Department of Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Kara Suvada
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Mohammed K Ali
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
- Department of Family and Preventive Medicine, School of Medicine, Emory University, Atlanta, Georgia, United States of America
| |
Collapse
|
8
|
Mremi A, Mchome B, Mlay J, Schledermann D, Blaakær J, Rasch V. Performance of HPV testing, Pap smear and VIA in women attending cervical cancer screening in Kilimanjaro region, Northern Tanzania: a cross-sectional study nested in a cohort. BMJ Open 2022; 12:e064321. [PMID: 36316070 PMCID: PMC9628663 DOI: 10.1136/bmjopen-2022-064321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 10/12/2022] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE There is a concern about performance of the screening approaches, where information on the quality of novel and affordable screening approaches that will perform well in remote areas is warranted. This lack of information makes it difficult to prioritise resource use in efforts to improve cervical cancer outcomes. We aimed to compare the diagnostic value of human papillomavirus (HPV) testing on self-collected samples, Pap smear and visual inspection of the cervix with acetic acid (VIA) tests for detection of high-grade cervical intraepithelial neoplasia or worse (CIN2+). DESIGN A combined cross-sectional and cohort study. SETTING Three primary healthcare centres in Kilimanjaro region, Tanzania. PARTICIPANTS 1620 women undergoing cervical cancer screening from December 2018 to September 2021. Inclusion criteria were being aged 25-60 years, and no history of premalignant or cervical cancer. Exclusion criteria were overt signs of cancer and previous hysterectomy. INTERVENTIONS Participants underwent HPV self-sampling with Evalyn Brush and Care HPV kit assay was used to determine prevalence of high-risk HPV infection. Women with positive HPV test were together with a random sample of HPV negative women scheduled for follow-up where VIA was performed, and Pap smear and cervical biopsies obtained. RESULTS Of 1620 women enrolled, 229 (14.1%) were HPV positive and 222 of these attended follow-up together with 290 (20.8%) women with negative HPV test. On VIA, 17.6% were positive. On Pap smear, 8.0% were classified as high-grade squamous intraepithelial lesion. The sensitivity and specificity, respectively, of the various tests, compared with histopathology for the detection of CIN2+ were: HPV test 62.5%, 59.3%; Pap smear 82.8%, 82.1% and; VIA 48.4%, 56.8%. When combined, the sensitivity and specificity for HPV and Pap smear were 90.6%, 70.6% while HPV and VIA were 65.6% and 75.5% for the detection of CIN2+. CONCLUSIONS The performance of care HPV testing on self-collected samples opens the possibility of increasing coverage and early detection in resource-constrained settings.
Collapse
Affiliation(s)
- Alex Mremi
- Department of Pathology, Kilimanjaro Christian Medical Centre, Moshi, United Republic of Tanzania
- Department of Obstetrics and Gynecology, Kilimanjaro Christian Medical University College, Moshi, United Republic of Tanzania
| | - Bariki Mchome
- Department of Obstetrics and Gynecology, Kilimanjaro Christian Medical University College, Moshi, United Republic of Tanzania
- Department of Obstetrics and Gynecology, Kilimanjaro Christian Medical Centre, Moshi, United Republic of Tanzania
| | - Joseph Mlay
- Department of Obstetrics and Gynecology, Kilimanjaro Christian Medical University College, Moshi, United Republic of Tanzania
- Department of Obstetrics and Gynecology, Kilimanjaro Christian Medical Centre, Moshi, United Republic of Tanzania
| | | | - Jan Blaakær
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Obstetrics and Gynecology, Odense University Hospital, Odense, Denmark
| | - Vibeke Rasch
- Odense University Hospital, University of Southern Denmark Faculty of Health Sciences, Odense, Denmark
- Department of Clinical Research, Odense University Hospital, Odense, Denmark
| |
Collapse
|
9
|
David J, Joshi V, Jebin Aaron D, Baghel P. A Comparative Analysis of Visual Inspection With Acetic Acid, Cervical Cytology, and Histopathology in the Screening and Early Detection of Premalignant and Malignant Lesions of the Cervix. Cureus 2022; 14:e29762. [PMID: 36324365 PMCID: PMC9617677 DOI: 10.7759/cureus.29762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2022] [Indexed: 11/26/2022] Open
Abstract
Introduction: The incidence of cervical cancer and related mortality is growing worldwide. The natural history of disease progression ranges from 10 to 20 years. Hence, effective screening can help in the early detection and prevention of fatal complications. This study aims to (1) compare the sociodemographic characteristics of the women with malignant and premalignant lesions of the cervix, (2) collate the accuracy of visual inspection of the cervix with acetic acid (VIA) with Pap smear cervical cytology in the early detection of premalignant and malignant lesions of the cervix, and (3) standardize it with histopathology, a gold standard screening tool. Methods: This study was carried out in the Department of Obstetrics and Gynaecology, Gajra Raja Medical College, Gwalior, India, from October 2020 to March 2021 including all the sexually active women of the reproductive age group and postmenopausal women attending the gynecology outpatient department and the indoor admitted patients. A total of 500 patients were included in the study. The women were subjected to a Pap smear followed by VIA. Punch biopsy was taken from the acetowhite regions and sent for histopathological examination. The women with abnormal cervical cytology results also underwent a biopsy and histopathological examination. Results: On comparative analysis, the sensitivity and specificity of Pap smear cytology were found to be 89.5% and 65.2%, respectively. The sensitivity and specificity of VIA were found to be 94.7% and 88%, respectively. The overall accuracy of VIA testing (93.2%) is more significant than that of Pap smear (68%). Conclusion: According to our study, it is found that visual inspection with acetic acid is more diagnostically accurate than Pap smear cytology. Hence, VIA testing could be implemented as a primary screening tool with credence. Also, as learned from our study, the premalignant and malignant lesions are more common among elderly women living under a low socioeconomic status. Hence, these groups of women must be outreached and covered through effectively targeted screening programs.
Collapse
|
10
|
Lagos-Castillo M, Guevara-Vizcarra M, Paredes-Campos F, Kosuri S, Vilchez G. The Effectiveness of Pap and Visual Inspection With Acetic Acid (VIAA) Tests in Cervical Dysplasia Screenings During the COVID-19 Pandemic. Cureus 2022; 14:e27364. [PMID: 36046272 PMCID: PMC9417588 DOI: 10.7759/cureus.27364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2022] [Indexed: 11/27/2022] Open
Abstract
Objective This study was aimed at analyzing the validity and reliability of the Papanicolaou (Pap) test and visual inspection with acetic acid (VIAA) tests for cervical dysplasia screenings during the COVID-19 pandemic. Material and methods This was a retrospective study of patients 21 years or older seen at the Luis Negreiros Primary Care Center in Lima, Peru between 2020 and 2021, who underwent cervical dysplasia screening (Pap or VIAA). Relevant information regarding patient age, date of service, and Pap and VIAA results were collected. Parallel form reliability was analyzed with chi-square tests, and phi, contingency and Cramer's V coefficients. The validity of these tests was analyzed through the calculation of the sensitivity, specificity, and positive and negative predictive values with confidence intervals. A p-value less than 0.05 indicated statistical significance. Results From 4,503 records, the sensitivity, specificity, and positive and negative predictive values for Pap were 0.87 (0.81-0.92), 1.0 (1.0-1.0), 1.0 (1.0-1.0) and 0.99 (0.98-0.99), respectively, and those for VIAA were 0.22 (0.14-0.31), 0.10 (0.10-0.10), 0.53 (0.38-0.69) and 0.10 (0.10-0.10), respectively. Test validity varied slightly according to patient age and the year of testing. The correlation, although significant, was inverse; chi-square = 39.18, p <0.001, phi = -0.60, contingency = 0.51 and Cramer’s V = -0.59. Conclusion The validity and reliability of Pap testing and VIAA for cervical dysplasia screening significantly decreased during the COVID-19 pandemic. The correlation between these tests, although significant, was inverse. More larger-scale studies are needed to confirm these findings and understand the reasons underlying the decreased effectiveness of these tests.
Collapse
|
11
|
Park J, Yang H, Roh HJ, Jung W, Jang GJ. Encoder-Weighted W-Net for Unsupervised Segmentation of Cervix Region in Colposcopy Images. Cancers (Basel) 2022; 14:3400. [PMID: 35884460 PMCID: PMC9317688 DOI: 10.3390/cancers14143400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 07/05/2022] [Accepted: 07/11/2022] [Indexed: 11/26/2022] Open
Abstract
Cervical cancer can be prevented and treated better if it is diagnosed early. Colposcopy, a way of clinically looking at the cervix region, is an efficient method for cervical cancer screening and its early detection. The cervix region segmentation significantly affects the performance of computer-aided diagnostics using a colposcopy, particularly cervical intraepithelial neoplasia (CIN) classification. However, there are few studies of cervix segmentation in colposcopy, and no studies of fully unsupervised cervix region detection without image pre- and post-processing. In this study, we propose a deep learning-based unsupervised method to identify cervix regions without pre- and post-processing. A new loss function and a novel scheduling scheme for the baseline W-Net are proposed for fully unsupervised cervix region segmentation in colposcopy. The experimental results showed that the proposed method achieved the best performance in the cervix segmentation with a Dice coefficient of 0.71 with less computational cost. The proposed method produced cervix segmentation masks with more reduction in outliers and can be applied before CIN detection or other diagnoses to improve diagnostic performance. Our results demonstrate that the proposed method not only assists medical specialists in diagnosis in practical situations but also shows the potential of an unsupervised segmentation approach in colposcopy.
Collapse
Affiliation(s)
- Jinhee Park
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea;
- Neopons, Daegu 41404, Korea
| | - Hyunmo Yang
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea; (H.Y.); (W.J.)
| | - Hyun-Jin Roh
- Department of Obstetrics and Gynaecology, University of Ulsan College of Medicine, Ulsan University Hospital, Ulsan 44033, Korea;
| | - Woonggyu Jung
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea; (H.Y.); (W.J.)
| | - Gil-Jin Jang
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea;
- School of Electronics Engineering, Kyungpook National University, Daegu 41566, Korea
| |
Collapse
|
12
|
Role of Artificial Intelligence Interpretation of Colposcopic Images in Cervical Cancer Screening. Healthcare (Basel) 2022; 10:healthcare10030468. [PMID: 35326946 PMCID: PMC8953422 DOI: 10.3390/healthcare10030468] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/24/2022] [Accepted: 03/02/2022] [Indexed: 02/04/2023] Open
Abstract
The accuracy of colposcopic diagnosis depends on the skill and proficiency of physicians. This study evaluated the feasibility of interpreting colposcopic images with the assistance of artificial intelligence (AI) for the diagnosis of high-grade cervical intraepithelial lesions. This study included female patients who underwent colposcopy-guided biopsy in 2020 at two institutions in the Republic of Korea. Two experienced colposcopists reviewed all images separately. The Cerviray AI® system (AIDOT, Seoul, Korea) was used to interpret the cervical images. AI demonstrated improved sensitivity with comparable specificity and positive predictive value when compared with the colposcopic impressions of each clinician. The areas under the curve were greater with combined impressions (both AI and that of the two colposcopists) of high-grade lesions, when compared with the individual impressions of each colposcopist. This study highlights the feasibility of the application of an AI system in cervical cancer screening. AI interpretation can be utilized as an assisting tool in combination with human colposcopic evaluation of exocervix.
Collapse
|
13
|
Essat M, Cooper K, Bessey A, Clowes M, Chilcott JB, Hunter KD. Diagnostic accuracy of conventional oral examination for detecting oral cavity cancer and potentially malignant disorders in patients with clinically evident oral lesions: Systematic review and meta-analysis. Head Neck 2022; 44:998-1013. [PMID: 35092324 PMCID: PMC9306506 DOI: 10.1002/hed.26992] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 09/20/2021] [Accepted: 01/18/2022] [Indexed: 12/24/2022] Open
Abstract
This systematic review evaluates the diagnostic accuracy of conventional oral examination (COE) versus incisional or excisional biopsy for the diagnosis of malignant and/or dysplastic lesions in patients with clinically evident lesions. Searches were conducted across five electronic databases from inception to January 2020. Meta‐analyses were undertaken, where appropriate. Among 18 included studies, 14 studies were included in the meta‐analysis, giving summary estimates for COE of 71% sensitivity and 85% specificity for the diagnosis of dysplastic and/or malignant lesions. The pooled diagnostic accuracy of identifying malignant‐only lesions was reported in seven studies, giving a pooled estimate of 88% sensitivity and 81% specificity. Diagnostic accuracy of different types of dental/medical professionals in identifying dysplastic or malignant lesions gave varying estimates of sensitivity and specificity across three studies. Further research is needed to improve the diagnostic accuracy of COE for early detection of dysplastic and malignant oral lesions.
Collapse
Affiliation(s)
- Munira Essat
- ScHARR, The University of Sheffield, Sheffield, UK
| | - Katy Cooper
- ScHARR, The University of Sheffield, Sheffield, UK
| | - Alice Bessey
- ScHARR, The University of Sheffield, Sheffield, UK
| | - Mark Clowes
- ScHARR, The University of Sheffield, Sheffield, UK
| | | | - Keith D Hunter
- School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
| |
Collapse
|
14
|
Setayesh T, Kundi M, Nersesyan A, Stopper H, Fenech M, Krupitza G, Knasmüller S. Use of micronucleus assays for the prediction and detection of cervical cancer: a meta-analysis. Carcinogenesis 2021; 41:1318-1328. [PMID: 32780106 DOI: 10.1093/carcin/bgaa087] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 07/13/2020] [Accepted: 08/03/2020] [Indexed: 12/13/2022] Open
Abstract
Cervical cancer (CC) is the fourth most common cancer in women; the survival rates depend strongly on its early detection. The Pap test is the most frequently used diagnostic tool, but due to its limited sensitivity/specificity, additional screening tests are needed. Therefore, we evaluated the use of micronucleus (MN) assays with cervical cells for the prediction and diagnosis of CC. MN reflects structural and numerical chromosomal aberrations. A search was performed in Pubmed, Scopus, Thomson ISI and Google Scholar. Subsequently, meta-analyses were performed for different grades of abnormal findings in smears and biopsies from patients which were diagnosed with CC. Results of 21 studies in which findings of MN experiments were compared with data from Pap tests show that higher MN frequencies were found in women with abnormal cells that are indicative for increased cancer risks. MN frequency ratios increased in the order inflammation (2.1) < ASC-US and ASC-H (3.3) < LGSIL (4.4) < HGSIL (8.4). Furthermore, results are available from 17 investigations in which MN were scored in smears from patients with neoplasia. MN rates increased with the degree of neoplasia [CIN 1 (4.6) < CIN 2 (6.5) and CIN 3 (10.8)] and were significantly higher (8.8) in CC patients. Our meta-analysis indicates that the MN assay, which is easy to perform in combination with Pap tests, may be useful for the detection/prediction of CC. However, standardization (including definition of the optimal cell numbers and stains) and further validation is necessary before the MN test can be implemented in routine screening.
Collapse
Affiliation(s)
- Tahereh Setayesh
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Michael Kundi
- Department of Environmental Health, Center for Public Health, Medical University of Vienna, Vienna, Austria
| | - Armen Nersesyan
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - Michael Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australiaand
| | - Georg Krupitza
- Department of Pathology, Medical University of Vienna, Vienna 1090, Austria
| | - Siegfried Knasmüller
- Department of Internal Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
15
|
Vahedpour Z, Abedzadeh-Kalahroudi M, Sehat M, Piroozmand A, Memar M. Comparison of Cervical Levels of Interleukins-6 and -8 in Patients with and without Cervical Intraepithelial Neoplasia. Asian Pac J Cancer Prev 2021; 22:1225-1230. [PMID: 33906316 PMCID: PMC8325114 DOI: 10.31557/apjcp.2021.22.4.1225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Indexed: 11/25/2022] Open
Abstract
Introduction: Interleukins-6 and -8 are two pro-inflammatory cytokines increasing in serum and local levels under malignant conditions. There are limited evidences on the association between cervical level of these two factors and cervical intraepithelial neoplasia (CIN). So, this study aimed to explore the association between cervical levels of IL-6 and IL-8 with cervical premalignant lesions. Methods: The present case-control study was conducted on married women undergone Pap smear for routine screening in two groups as the group with CIN (n=100) and the healthy control group (n=100). Cervical secretions were collected using sterile swab and the levels of IL-8 and IL-6 were measured by enzyme-linked immunosorbent assay (ELISA). The obtained data were analyzed by SPSS software. Results: The mean cervical IL-6 level was 568.66±594.62 pg/ml in the patients with CIN and 212.7±213.9 pg/ml in the controls (P <0.001). The cervical IL-8 levels in the case and control groups were measured to be 1320.43±876.5 pg/ml and 1053.59±747.64 pg/ml, respectively (p=0.02). By modifying the confounding size effect of the age and marital duration, it was determined that cervical levels of IL-6 and IL-8 were both associated with CIN. Conclusion: Our results showed that the cervical levels of IL-6 and IL-8 are associated with CIN independent of age and marital duration.
Collapse
Affiliation(s)
- Zahra Vahedpour
- Autoimmune Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Mojtaba Sehat
- Kashan Trauma Research Center Head of Department of Community Medicine, Faculty of Medicine Kashan University of Medical Sciences, Kashan, Iran
| | - Ahmad Piroozmand
- Autoimmune Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Maedeh Memar
- Department of Obstetrics and Gynecology; Kashan University of Medical Sciences, Kashan, Iran
| |
Collapse
|
16
|
How long is too long? Application of acetic acid during colposcopy: a prospective study. Am J Obstet Gynecol 2020; 223:101.e1-101.e8. [PMID: 31981505 DOI: 10.1016/j.ajog.2020.01.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/15/2020] [Accepted: 01/15/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Application of acetic acid to the cervix followed by colposcopic assessment with or without colposcopically directed biopsy is the standard test used to detect dysplastic lesions of the cervix. However, there is no evidence-based common standard defining how exactly to perform this test. OBJECTIVE To prospectively define the optimal timing for the colposcopic assessment of acetowhite lesions. MATERIALS AND METHODS Consecutive women referred to our colposcopy unit were recruited. Using a standardized colposcopy protocol, we recorded the most severe colposcopic lesion 1, 3, and 5 minutes after application of acetic acid (primary study end point). The time to first appearance of the most severe colposcopic lesion, highest staining intensity, and fading of the most severe colposcopic lesion were video documented (secondary study end points, assessed independently by 3 raters). Results were compared using parametric and nonparametric tests. RESULTS A total of 300 women were included. After 1 minute, 290 of 300 patients (96.7%) were diagnosed with the most severe colposcopic lesion. This proportion did not improve after 3 minutes (290/300 [96.7%]) or after 5 minutes (233/264 [88.3%]). The proportion of minor and major changes continuously declined over time from 142 in 300 (47.3%; 1 minute) to 107 in 264 (40.5%; 5 minutes) and from 110 in 300 (36.7%) to 91 in 264 (34.5%), respectively. The median time until the first appearance of the most severe colposcopic lesion was 13.5 (interquartile range, 3-27.25) seconds and was significantly lower in high-grade squamous intraepithelial lesion (7 [interquartile range, 1-20] seconds) compared to low-grade squamous intraepithelial lesion (19 [interquartile range, 9-39.5] seconds; P < .001). We observed fading of acetowhite lesions in 78% of cases, occurring at a median of 191 (interquartile range, 120-295) seconds after application of acetic acid. Fading started earlier in high-grade squamous intraepithelial lesion compared to low-grade squamous intraepithelial lesion (179.5 [interquartile range, 110- 253.25] versus 212.5 [interquartile range, 146.5-300]; P = .044). Overall, the net difference between colposcopic assessments at 3 minutes versus at 1 minute was 1 more high-grade squamous intraepithelial lesion and 1 less low-grade squamous intraepithelial lesion. CONCLUSION It is reasonable to conclude that the best time to identify lesions is 1 minute after the application of acetic acid. Continued evaluation for up to 3 minutes may be considered reasonable for an optimal high-grade squamous intraepithelial lesion yield. However, fading of acetowhite lesions is common, especially in high-grade squamous intraepithelial lesions, and supports a recommendation of not prolonging colposcopy beyond 3 minutes.
Collapse
|
17
|
Liu CH, Lee YC, Lin JCF, Chan IS, Lee NR, Chang WH, Liu WM, Wang PH. Radical Hysterectomy After Neoadjuvant Chemotherapy for Locally Bulky-Size Cervical Cancer: A Retrospective Comparative Analysis between the Robotic and Abdominal Approaches. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E3833. [PMID: 31614465 PMCID: PMC6843229 DOI: 10.3390/ijerph16203833] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/25/2019] [Accepted: 10/09/2019] [Indexed: 12/18/2022]
Abstract
Radical hysterectomy (RH) is the standard treatment for early stage cervical cancer, but the surgical approach for locally bulky-size cervical cancer (LBS-CC) is still unclear. We retrospectively compared the outcomes of women with LBS-CC treated with neoadjuvant chemotherapy (NACT) and subsequent RH between the robotic (R-RH) and abdominal approaches (A-RH). Between 2012 and 2014, 39 women with LBS-CC FIGO (International Federation of Gynecology and Obstetrics) stage IB2-IIB were treated with NACT-R-RH (n = 18) or NACT-A-RH (n = 21). Surgical parameters and prognosis were compared. Patient characteristics were not significantly different between the groups, but the NACT-R-RH group had significantly more patients with FIGO stage IIB disease, received multi-agent-based NACT, and had a lower percentage of deep stromal invasion than the NACT-A-RH group. After NACT-R-RH, surgical parameters were better, but survival outcomes, such as disease-free survival (DFS) and overall survival (OS), were significantly worse. On multivariate analysis, FIGO stage IIB contributed to worse DFS (p = 0.003) and worse OS (p = 0.012) in the NACT-A-RH group. Women with LBS-CC treated with NACT-R-RH have better perioperative outcomes but poorer survival outcomes compared with those treated with NACT-A-RH. Thus, patients with FIGO stage IIB LBS-CC disease might not be suitable for surgery after multi-agent-based NACT.
Collapse
Affiliation(s)
- Chia-Hao Liu
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
- Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei 112, Taiwan.
| | - Yu-Chieh Lee
- Department of Obstetrics and Gynecology, Taipei Medical University Hospital and Taipei Medical University, Taipei 110, Taiwan.
| | - Jeff Chien-Fu Lin
- Department of Statistics, National Taipei University, Taipei 104, Taiwan.
- Department of Orthopedic Surgery, Taipei Municipal Wanfang Hospital, Taipei Medical University, Taipei 116, Taiwan.
| | - I-San Chan
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
- Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei 112, Taiwan.
| | - Na-Rong Lee
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
- Department of Nursing, Taipei Veterans General Hospital, Taipei 112, Taiwan.
| | - Wen-Hsun Chang
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
- Department of Nursing, Taipei Veterans General Hospital, Taipei 112, Taiwan.
| | - Wei-Min Liu
- Department of Obstetrics and Gynecology, Taipei Medical University Hospital and Taipei Medical University, Taipei 110, Taiwan.
| | - Peng-Hui Wang
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
- Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei 112, Taiwan.
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 112, Taiwan.
- Department of Medical Research, China Medical University Hospital, Taichung 440, Taiwan.
- The Female Cancer Foundation, Taipei 104, Taiwan.
| |
Collapse
|