Abstract 69: To Triage or Not? Positive Predictive Value of Visual Inspection with Acetic Acid for Diagnosis of Cervical Intraepithelial Neoplasia Grade 2 or Worse (CIN2+) among HIV-Positive Women in a Low-Resource Setting

2021 ◽  
Author(s):  
Chemtai Mungo ◽  
Cyrillus Ogollah ◽  
Jennifer Ambaka ◽  
Magdalene Randa ◽  
Jackton Omoto ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Positive Predictive Value ◽  
Predictive Value ◽  
Visual Inspection ◽  
Intraepithelial Neoplasia ◽  
Hiv Positive ◽  
Cervical Intraepithelial Neoplasia Grade ◽  
Hiv Positive Women ◽  
Resource Setting ◽  
Low Resource Setting

scholarly journals VIA (Visual inspection with acetic acid) and VILI (Visual inspection with lugol’s iodine) as an initial approach with colposcopy as a next screening tool with its positive predictive value in low socioeconomic patients

2017 ◽  
Vol 7 (1) ◽  
pp. 210
Author(s):  
Anita Paswan ◽  
Anil Kumar ◽  
Kumudini Jha ◽  
Shail Kumari Sinha
Keyword(s):  
Cervical Cancer ◽  
Acetic Acid ◽  
Positive Predictive Value ◽  
Cervical Carcinoma ◽  
Predictive Value ◽  
Visual Inspection ◽  
Pap Smear ◽  
Lugol’S Iodine ◽  
Resource Setting ◽  
Sensitivity Specificity

Background: Cervical Cancer is the second most common cancer in women worldwide and India alone contribute the 1/4th of the world’s cases of cervical cancer. In view to this huge burden there was need to establish a feasible screening programme to detect cervical carcinoma at earliest in developing country.Methods: This is a prospective study of 500 women who fulfil the selection criteria. 50 pregnant patients for VIA (Visual inspection with acetic acid), 50 pregnant patients for VILI (Visual inspection with lugol’s iodine) and 400 non-pregnant women for VIA, VILI and colposcopy were enrolled. In positive cases, cervical biopsy with histopathological examination was done. The sensitivity, specificity and positive predictive value of each test were obtained and compared. Chi-square (X2) test was used to test the significance of difference between two proportions of a quantitative data.Results: The sensitivity, specificity, positive predictive value and negative predictive value for VIA (85.1%, 84.1%, 41.7%, 97%), VILI (95.7%, 92.4%, 62.5%, 93.4%) and Colposcopy (83%, 86%, 51.3%, 96.6%) were statistically significant with its histopathological report.Conclusions: In a poor developing country like India where pap smear and colposcopy is not available in low resource setting VIA and VILI can prove a very helpful tool in picking up abnormal looking cervix which can then be confirmed by pap or colposcopy. It will go a long way in reducing the incidence of cervical carcinoma.

scholarly journals Correlation of visual inspection with cytological and histopathological findings in cervical neoplasia

2017 ◽  
Vol 7 (1) ◽  
pp. 1070-1073 ◽  
Author(s):  
P Sherpa ◽  
AD Pant
Keyword(s):  
Acetic Acid ◽  
Positive Predictive Value ◽  
Diagnostic Accuracy ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Visual Inspection ◽  
Pap Smear ◽  
Invasive Carcinoma ◽  
Intraepithelial Neoplasia ◽  
Cervical Neoplasia

Background: Cervical cancer is one of the commonest malignancies and a leading cause of morbidity and mortality among women. The aim of this study was to evaluate the diagnostic value of Papanicolaou (PAP) smear and visual inspection with acetic acid as methods of cervical cancer screening.Materials and Methods: This was a observational cross-sectional study conducted from the period of 2068.11.01 to 2069.11.01. The study population consisted of women with histologically confirmed cervical intraepithelial neoplasia or invasive carcinoma who had undergone prior PAP smear.Results: During the study period 160 patients underwent both PAP smear and cervical biopsy. Of these patients, 49 had a histological diagnosis of cervical intraepithelial neoplasia or invasive carcinoma. The histopathological and cytological diagnoses were compared. Visual inspection with acetic acid status was available for 31 of the 49 cases. The sensitivity of PAP smear was 61%, specificity 97%, positive predictive value 91%, negative predictive value 85% and diagnostic accuracy 86% for detection of cervical neoplasia. Visual inspection with acetic acid had a sensitivity of 74%, specificity 48%, Positive predictive value 64%, Negative predictive value 60% and diagnostic accuracy of 63%. Combining the two procedures increased sensitivity by 26%, Negative predictive value by 11%  and diagnostic accuracy by 2 per cent.Conclusion: PAP smear has a higher specificity, Positive predictive value, Negative predictive value and diagnostic accuracy but lower sensitivity than visual inspection with acetic acid. Visual inspection with acetic acid by itself is not an effective screening method. A combination of PAP smear and visual inspection with acetic acidcan ensure adequate screening of cervical neoplasia.

scholarly journals Accuracy of Smartphone Images of the Cervix After Acetic Acid Application for Diagnosing Cervical Intraepithelial Neoplasia Grade 2 or Greater in Women With Positive Cervical Screening: A Systematic Review and Meta-Analysis

2021 ◽  
pp. 1711-1721
Author(s):  
Emma R. Allanson ◽  
Natacha Phoolcharoen ◽  
Mila P. Salcedo ◽  
Bryan Fellman ◽  
Kathleen M. Schmeler
Keyword(s):  
Systematic Review ◽  
Acetic Acid ◽  
Positive Predictive Value ◽  
Cervical Intraepithelial Neoplasia ◽  
Predictive Value ◽  
Precancerous Lesions ◽  
Meta Analysis ◽  
Cervical Screening ◽  
Intraepithelial Neoplasia ◽  
Cervical Intraepithelial Neoplasia Grade

PURPOSE Smartphones are used in cervical screening for visual inspection after acetic acid or Lugol's iodine (VIA/VILI) application to capture and share images to improve the sensitivity and interobserver variability of VIA/VILI. We undertook a systematic review and meta-analysis assessing the diagnostic accuracy of smartphone images of the cervix at the time of VIA/VILI (termed S-VIA) in the detection of precancerous lesions in women undergoing cervical screening. METHODS This systematic review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies from January 1, 2010, to June 30, 2020, were assessed. MEDLINE/PubMed, Embase, CINAHL, Cochrane, and LILACS were searched. Cohort and cross-sectional studies were considered. S-VIA was compared with the reference standard of histopathology. We excluded studies where additional technology was added to the smartphone including artificial intelligence, enhanced visual assessment, and other algorithms to automatically diagnose precancerous lesions. The primary outcome was the accuracy of S-VIA for the diagnosis of cervical intraepithelial neoplasia grade 2 or greater (CIN 2+). Data were extracted, and we plotted the sensitivity, specificity, negative predictive value, and positive predictive value of S-VIA using forest plots. This study was prospectively registered with The International Prospective Register of Systematic Reviews:CRD42020204024. RESULTS Six thousand three studies were screened, 71 full texts assessed, and eight studies met criteria for inclusion, with six included in the final meta-analysis. The sensitivity of S-VIA for the diagnosis of CIN 2+ was 74.56% (95% CI, 70.16 to 78.95; I2 61.30%), specificity was 61.75% (95% CI, 56.35 to 67.15; I2 95.00%), negative predictive value was 93.71% (95% CI, 92.81 to 94.61; I2 0%), and positive predictive value was 26.97% (95% CI, 24.13 to 29.81; I2 61.3%). CONCLUSION Our results suggest that S-VIA has accuracy in the detection of CIN 2+ and may provide additional support to health care providers delivering care in low-resource settings.

Cytology versus visual inspection with acetic acid among women treated previously with cryotherapy in a low-resource setting

2010 ◽  
Vol 111 (3) ◽  
pp. 249-252 ◽  
Author(s):  
Miriam Cremer ◽  
Kimberley Bullard ◽  
Mauricio Maza ◽  
Ethel Peralta ◽  
Elizabeth Moore ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Visual Inspection ◽  
Low Resource ◽  
Resource Setting ◽  
Low Resource Setting

scholarly journals Diagnostic Value of VIA Comparing with Conventional Pap Smear in the Detection of Colposcopic Biopsy Proved CIN

1970 ◽  
Vol 6 (1) ◽  
pp. 7-12 ◽  
Author(s):  
Divya Hegde ◽  
Harish Shetty ◽  
Prasanna K Shetty ◽  
Supriya Rai ◽  
Lakshmi Manjeera ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Acetic Acid ◽  
Positive Predictive Value ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Visual Inspection ◽  
Pap Smear ◽  
High Grade ◽  
Low Resource Settings ◽  
Low Resource

Aim: A study to assess the role of visual inspection with acetic acid VIA as an alternative to Pap smear in screening program for cervical cancer in low resource settings. Method: Two hundred and twenty five women in reproductive age group attending the Gynecology department at K.S Hegde Charitable Hospital were enrolled in the study. A Papanicolaou smear and visual inspection of the cervix with acetic acid was done. All women then underwent colposcopy using the video colposcope. All patients who tested positive on screening then underwent colposcopy guided biopsy. Pap smear of Low grade squamous intraepithelial lesion (LSIL) and above was taken as abnormal. The statistical test used was chi square test and results were computed using Statistical Package for the Social Sciences (SPSS) version 12.0. Results: Out of 225 patients, VIA was positive in 27(12%) patients and Pap smear was abnormal in 26(11.7%). There were 15 LSIL, 6 high Grade Squamous intraepithelial lesions (HSIL) and 5 were squamous cell carcinoma. On biopsy, there were 15 mild dysplasia, 2 moderate dysplasia, 4 severe dysplasia and 3 squamous cancers. Pap smear had a sensitivity of 83%, specificity of 98%, and positive predictive value of 80 % and negative predictive value of 97.9%. VIA had a sensitivity of 70.8%, specificity of 95%, and positive predictive value of 62.9 % and negative predictive value of 96.5%. Conclusion: Since diagnostic values of VIA is comparable to Pap smear, and it performs well in detecting high grade lesion we conclude that VIA can be used as a screening modality for cervical cancer in low resource settings. Keywords: Cervical cancer in low resource settings, Pap smear- colposcopy, visual inspection with acetic acid   DOI: http://dx.doi.org/10.3126/njog.v6i1.5245 NJOG 2011; 6(1): 7-12

Hybrid capture 2 and cobas® 4800: Comparison of performance of two clinically validated tests for human papillomavirus primary screening of cervical cancer

2021 ◽  
pp. 096914132199282
Author(s):  
A Mongia ◽  
G Pompeo ◽  
C Sani ◽  
E Burroni ◽  
G Fantacci ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
High Risk ◽  
Positive Predictive Value ◽  
Cervical Intraepithelial Neoplasia ◽  
Predictive Value ◽  
Screening Program ◽  
Intraepithelial Neoplasia ◽  
Cervical Intraepithelial Neoplasia Grade ◽  
Hybrid Capture ◽  
Hybrid Capture 2

Objective To compare, in a primary human papillomavirus screening setting, two different validated human papillomavirus tests, considering their analytical and clinical screening performances. Methods In Tuscany, a human papillomavirus screening program was implemented in 2013. Hybrid capture 2 (Qiagen) was used for testing until May 2016, when it was replaced by the cobas® 4800 human papillomavirus test (Cobas; Roche). We evaluated the performance of Hybrid capture 2 and Cobas on: the same screening population in two different periods (before and after changing to Cobas); the same Hybrid capture 2-positive consecutive samples. Discordant samples (Hybrid capture 2-positive/Cobas negative) were typed on the L1 gene (reverse line blot, AB Analitica) and E6/E7 genes (BD Onclarity assay). Results In the considered time period ( n = 37,775), human papillomavirus positivity was 9.8% and 7.4%, respectively, for Hybrid capture 2 and Cobas ( p < 0.0001). At immediate colposcopy, the cervical intraepithelial neoplasia, grade 2 positive predictive value was, respectively, 23.8% and 34% ( p < 0.001). At one-year recall, human papillomavirus persistence was, respectively, 40.6% and 62.2% ( p < 0.0001). Of Hybrid capture 2-positive re-tested samples ( n = 620), 32.4% were Cobas negative. Of discordant samples typed on L1, 7% were positive for the 12 high-risk human papillomavirus. Of the samples found to be negative for the 12 high-risk human papillomavirus types on L1, 14.5% were positive on E6/E7 typing. Among the discordant samples, the only two cervical intraepithelial neoplasia (CIN) grade 3 lesions were non-high-risk human papillomavirus positive on both L1 and E6/E7 typing. Conclusion At baseline, Hybrid capture 2 showed greater human papillomavirus positivity and a lower CIN2+ positive predictive value than Cobas, which was more specific than Hybrid capture 2 in detection of high-risk human papillomavirus: 80% of discordant samples were confirmed as high-risk human papillomavirus negative. This higher analytical specificity determined the non-identification of two CIN3 lesions.

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