J F Bragança

University of Campinas, Conceição de Campinas, São Paulo, Brazil

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Publications (20)32.26 Total impact

  • International Journal of Gynecological Cancer 05/2015; 25 Suppl 1:29. DOI:10.1097/00009577-201505001-00024 · 1.95 Impact Factor
  • International Journal of Gynecological Cancer 05/2015; 25 Suppl 1:24. DOI:10.1097/00009577-201505001-00019 · 1.95 Impact Factor
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    ABSTRACT: To evaluate pathologic features with implications on surgical radicality in women treated with radical hysterectomy and pelvic lymphadenectomy for cervical cancer stage IA1 with lymph vascular space invasion (LVSI) and stage IA2 by correlating findings in conization and hysterectomy specimens. Women with cervical cancer stage IA1 with LVSI and stage IA2 diagnosed by loop electrosurgical excisional procedure or cold knife conization were treated with radical hysterectomy and pelvic lymphadenectomy from January 1999 to December 2011 in 2 institutions. Fifty patients were enrolled: 40 with stage IA2 and 10 with stage IA1 with LVSI. Median age was 43 (30-67) years. All patients underwent cervical conization for diagnosis (45 loop electrosurgical excisional procedure, 5 cold knife). Lymph vascular space invasion was detected in 15 patients (30%). Two patients had positive pelvic nodes. No parametrial involvement was detected in the entire cohort. Positive margins were present in 35 patients, and residual disease was detected in 22 patients (44%). Positive margins predicted residual disease at radical hysterectomy (P = 0.02). Medium follow-up time was 51 months. One patient developed a pelvic recurrence, and there were no disease-related deaths. Patients with positive margins in cone biopsy specimens have an increased risk of residual disease at radical hysterectomy and require careful evaluation before conservative surgery. Pelvic lymph node evaluation is essential because lymph node metastasis may occur even in early stages. The lack of parametrial invasion in this study reinforces the knowledge that the select group of patients with microinvasive cervical carcinoma stages IA1 LVSI and stage IA2 have a very low risk of parametrial infiltration. Less radical surgery can be carefully considered for these patients.
    International Journal of Gynecological Cancer 03/2015; 25(4). DOI:10.1097/IGC.0000000000000416 · 1.95 Impact Factor
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    ABSTRACT: To assess the value of vaginal screening cytology after hysterectomy for benign disease. This cross-sectional study used cytology audit data from 2,512,039 screening tests in the metropolitan region of Campinas from 2000 to 2012; the object was to compare the prevalence of abnormal tests in women who had undergone a hysterectomy for benign diseases (n=53,891) to that of women who had had no hysterectomy. Prevalence ratios (95% confidence intervals, 95%CI) were determined, and chi-square analysis, modified by the Cochrane-Armitage test for trend, was used to investigate the effects of age. The prevalence of atypical squamous cells (ASC), low-grade squamous intraepithelial lesion (LSIL), and high-grade squamous intraepithelial lesion or squamous-cell carcinoma (HSIL/SCC) was 0.13%, 0.04% and 0.03%, respectively, in women who had undergone hysterectomy, and 0.93%, 0.51% and 0.26% in women who had not undergone hysterectomy. The prevalence ratios for ASC, LSIL and HSIL/SCC were 0.14 (0.11-0.17), 0.08 (0.06-0.13) and 0.13 (0.08-0.20), respectively, in women with a hysterectomy versus those without. For HSIL/SCC, prevalence ratios were 0.09 and 0.29, respectively, for women <50 or ≥50years. Prevalence rates in women with a previous hysterectomy showed no significant variation with age. The prevalence rates of ASC, LSIL and HSIL/SCC were significantly lower in women with a previous hysterectomy for benign disease compared with those observed in women with an intact uterine cervix. This study reinforces the view that there is no evidence that cytological screening is beneficial for women who have had a hysterectomy for benign disease. Copyright © 2015. Published by Elsevier Inc.
    Gynecologic Oncology 02/2015; 137(2). DOI:10.1016/j.ygyno.2015.02.011 · 3.69 Impact Factor
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    ABSTRACT: The objective of this study was to evaluate the impact of cervical cytology screening on the prevalence of cervical cytological results in women, as a function of age and test interval. This is a cross-sectional study of cytology screening data of 2,002,472 tests obtained from previously screened women and 217,826 tests from unscreened women. The central cytopathology laboratory database was analyzed. The tests were collected for screening purposes from Campinas metropolitan region, Brazil. A prevalence ratio (PR) with a 95% confidence interval was calculated for the screened women, in relation to the unscreened women, and for different tests intervals. Protection afforded by screening (1-PR) was calculated. For high-grade squamous intraepithelial lesion, the PR was 0.97 (0.83-1.13) for women aged 20 years or younger and 0.99 (0.86-1.14) for women aged 20 to 24 years, decreasing significantly in women aged 25 to 29 years (PR, 0.63 [0.52-0.76]). The PR for squamous cell carcinoma, adenocarcinoma in situ (AIS), and invasive adenocarcinoma showed a significant reduction in all age groups older than 30 years. For the age group ranging from 30 to 59 years, protection for squamous cell carcinoma, AIS, and invasive adenocarcinoma was 83% or higher for screening intervals from 1 to 5 years. Protective effect was not demonstrated for screening intervals longer than 5 years for AIS and invasive adenocarcinoma. Cytology screening is effective at preventing cytological high-grade squamous intraepithelial lesion, squamous cell carcinoma, AIS, and invasive adenocarcinoma. On the basis of cytological results, protection against AIS and invasive adenocarcinoma was observed with screening intervals shorter than 5 years. Cytological screening in women 25 years or younger should be critically evaluated.
    International Journal of Gynecological Cancer 01/2014; DOI:10.1097/IGC.0000000000000057 · 1.95 Impact Factor
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    ABSTRACT: Objective: To evaluate the performance of mesothelin, CA125, HE4 and ROMA index in the detection of malignant ovarian tumors. Study Design: This is a cross-sectional study including 199 women with adnexal masses (67 with malignant tumors and 132 with benign tumors) and 150 healthy women (controls). We used a recursive multivariate partitioning algorithm to assess the contribution of each of the serum markers and the ROMA index to the discrimination of women with malignant tumors. Also, the areas under the ROC curves (AUC) for each of the serum markers and for the ROMA index were compared using the Venkatraman's projection-permutation test. Results: In the recursive model, CA125 had the best performance in discriminating women with malignant tumors. In women with normal-range CA125 levels, none of the other markers contributed to the discrimination of women with malignant tumors. In women with elevated CA125 levels, elevated HE4 levels were associated with an increased risk of harboring a malignant tumor. The AUC for mesothelin was smaller than that for all the other curves, and both the ROMA index and CA125 had better AUC than HE4. Conclusion: In women with normal CA125 levels, neither mesothelin nor HE4 contributed to discriminate women with malignant ovarian tumors; however, for women with elevated CA125 levels HE4 may help discriminating those who have a malignant ovarian tumor.
    The International journal of biological markers 07/2013; 28(4). DOI:10.5301/jbm.5000029 · 1.36 Impact Factor
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    ABSTRACT: To assess the prediction potential of a 5-biomarker panel for detecting high-risk human papillomavirus (HR-HPV) infections and/or cervical intraepithelial neoplasia (CIN) progression. Five biomarkers, lipocalin, plasminogen activator inhibitor-2, p300, interleukin-10, and stratifin, were assessed in cervical biopsies from 225 women of the Latin American Screening Study. Competing-risks regression models were constructed to assess their predictive power for (i) HR-HPV outcomes (negative, transient, or persistent infection) and (ii) CIN outcomes (no progression, incident CIN1, CIN2, or CIN3). p300, LCN2, stratifin were significantly associated with prevalent HR-HPV but lost their significance in multivariate analysis. In the multivariate model, only p300 was an independent predictor of CIN3 (odds ratio=2.63; 95% confidence interval, 1.05-6.61; P=0.039). In univariate competing-risks regression, lipocalin predicted permanent HR-HPV-negative status, but in the multivariate model, IL-10 emerged as a independent predictor of HPV-negative status (subhazard ratio=4.04; 95% confidence interval, 1.81-9.01; P=0.001). The clinical value of the panel in predicting longitudinal outcomes of HR-HPV infection and/or incident CIN is limited.
    International journal of gynecological pathology: official journal of the International Society of Gynecological Pathologists 05/2013; DOI:10.1097/PGP.0b013e31826739b1 · 1.63 Impact Factor
  • International Journal of Gynecology & Obstetrics 10/2009; 107. DOI:10.1016/S0020-7292(09)60514-2 · 1.56 Impact Factor
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    ABSTRACT: To examine the effect of smoking on the incidence of low- and high-grade cervical intraepithelial neoplasia (CIN) in women with a baseline Pap smear of atypical squamous cells (ASC) or a low-grade squamous intraepithelial lesion (LSIL). Prospective study in which a cohort of women with normal colposcopy and ASC/LSIL at baseline were followed at 6-month intervals of up to 36 months. Women were grouped in post-hoc analysis according to their smoking behavior: never (or past) smokers and current smokers. This report was based on data from the Latin American Screening Study, conducted in Sao Paulo, Campinas, Porto Alegre (Brazil) and Buenos Aires (Argentina). A subset of 150 women derived from a cohort of 1,011 women. Multivariate Cox analysis and Kaplan-Meier curves were used. Low- and high-grade CIN during follow-up. The only factor related to an increased risk of developing CIN was the positive high-risk (hr) HPV status (hazard ratio (HR) = 3.42; 95% CI: 1.11-9.43). A total of 21 cases of incident CIN were detected during follow-up. Of these, 11 appeared in the group of 67 smokers and 10 among the 83 non-smoker women (log-rank, p=0.33). Smoking status was not associated with the risk of developing CIN (HR = 0.73; 95% CI: 0.40-1.33). However, when restricting the analysis to high-grade CIN only (11 cases), the probability of developing the disease was significantly higher among smokers (p=0.04). Smoking contributes additional risk for developing high-grade CIN in women with ASC or LSIL cytology but normal colposcopy.
    Acta Obstetricia Et Gynecologica Scandinavica 04/2009; 88(5):514-20. DOI:10.1080/00016340902846072 · 1.99 Impact Factor
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    ABSTRACT: Drug abuse (addiction) has been listed among the risk factors for human papillomavirus (HPV) infections, but no case-control studies exist to rule out sexual behaviour and other potential confounders. The aim of this study is to evaluate the role of drug addiction as an independent predictor of HR-HPV infections and (cervical intraepithelial neoplasia) CIN2+ in an age-matched case-control (1:4) study nested within the prospective Latin American Screening (LAMS) study cohort. All 109 women in the LAMS cohort (n=12,114) reporting drug abuse/addiction were matched with four controls (n = 436) of non-abusers strictly by age. Conditional logistic regression analysis was used to estimate the co-variates of drug abuse, and the whole series (n=545) was analysed for predictors of HR-HPV and CIN2+ using univariate and multivariate regression models. Oncogenic HPV infections were significantly (P=0.019) more prevalent among abusers (37.7%) than in controls (21.9%), but there was no difference in high-grade squamous intraepithelial lesions (P=0.180) or CIN2+ lesions (P=0.201). In multivariate conditional logistic regression, number of lifetime sexual partners (P=0.0001), ever smokers (P=0.0001), non-use of OCs (P=0.013), ever having sexually transmitted diseases (STD) (P=0.041) and no previous Pap smear (P=0.027) were independent co-variates of drug addiction. Drug abuse was not an independent risk factor of high-risk (HR)-HPV infection, which was significantly predicted by (1) age below 30 years (P=0.045), (2) more than five lifetime sexual partners (P=0.046) and (3) being current smoker (P=0.0001). In multivariate model, only HR-HPV infection was an independent risk factor of CIN2+ (P=0.031), with adjusted OR=11.33 (95% CI 1.25-102.50). These data indicate that drug addiction is not an independent risk factor of either HR-HPV infections or CIN2+, but the increased prevalence of HR-HPV infections is explained by the high-risk sexual behaviour and smoking habits of these women.
    International Journal of STD & AIDS 05/2008; 19(4):251-8. DOI:10.1258/ijsa.2007.007179 · 1.04 Impact Factor
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    ABSTRACT: To assess whether human papillomavirus (HPV) testing is a safe enough approach to warrant extension of the screening intervals of baseline Papanicolaou (Pap)-/HPV- women in low-income settings. Of the >1000 women prospectively followed up as part of the Latin American Screening (LAMS) Study in São Paulo, Campinas, Porto Alegre) and Buenos Aires, 470 women with both baseline cytology and Hybrid Capture 2 (HC2) results available were included in this analysis. These baseline Pap-negative and HC2- or HC2+ women were controlled at six-month intervals with colposcopy, HC2 and Pap to assess the cumulative risk of incident Pap smear abnormalities and their predictive factors. Of the 470 women, 324 (68.9%) were high-risk HPV (hrHPV) positive and 146 (31.1%) were negative. Having two or more lifetime sex partners (odds ratio [OR] = 2.63; 95% CI 1.70-3.51) and women using hormonal contraception (OR = 2.21; 95% CI 1.40-3.51) were at increased risk for baseline hrHPV infection. Baseline hrHPV+ women had a significantly increased risk of incident abnormal Pap smears during the follow-up. Survival curves deviate from each other starting at month 24 onwards, when hrHPV+ women start rapidly accumulating incident Pap smear abnormalities, including atypical squamous cells (ASC) or worse (log-rank; P < 0.001), low-grade squamous intraepithelial lesions (LSIL) or worse (P < 0.001) and high-grade squamous intraepithelial lesions (HSIL) (P = 0.03). Among the baseline hrHPV- women, the acquisition of incident hrHPV during the follow-up period significantly increased the risk of incident cytological abnormalities (hazard ratio = 3.5; 95% CI 1.1-11.7). These data implicate that HPV testing for hrHPV types might be a safe enough approach to warrant extension of the screening interval of hrHPV-/Pap-women even in low-resource settings. Although some women will inevitably contract hrHPV, the process to develop HSIL will be long enough to enable their detection at the next screening round (e.g. after three years).
    Journal of Medical Screening 02/2008; 15(2):97-104. DOI:10.1258/jms.2008.007061 · 2.72 Impact Factor
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    ABSTRACT: The objective of the study was to investigate the expression of p53 and p16(INK4a) in cervical intraepithelial neoplasia (CIN) and their relation with disease severity and high-risk human papillomavirus (HR-HPV) status. A series of 125 women with previous positive Pap smear were selected for this cross-sectional study. All patients underwent gynecological examination, including colposcopy. Specimens for Pap smears, Hybrid Capture 2 (HC2) test, and pathologic analysis were obtained. After evaluation of CIN grade, immunohistochemical detection of proteins p53 and p16(INK4a) was performed on paraffin-embedded sections. The extent of immunoexpression of both proteins was analyzed in relation to CIN grade and HR-HPV status. CIN was graded as 1 in 21, 2 in 17, and 3 in 87 specimens. p16(INK4a) positivity (at least 5% of epithelial cells stained) was found in 99 of 125 cases (79.2%) and was significantly higher in high-grade lesions as compared to low-grade CIN (P < 0.001). The expression of p53 did not differ across histologic strata. Protein expression neither of p16(INK4a) nor of p53 correlated with HR-HPV status. Expression of p16(INK4a) was not related with that of p53. Our study gives further support to previous findings of strong association of p16(INK4a) immunostaining with severity of epithelial atypia, but this protein may not be considered a predictor of HR-HPV status determined with HC2. By contrast, immunoexpression of p53 was related neither to CIN grade nor to HR-HPV status.
    International Journal of Gynecological Cancer 11/2007; 18(5):1060-4. DOI:10.1111/j.1525-1438.2007.01148.x · 1.95 Impact Factor
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    ABSTRACT: To assess the role of HPV as determinant of the incident cytological abnormalities (SIL) and cervical lesions (CIN) during a 24-month follow-up of baseline PAP smear-negative subgroup of women included in the Latin American Screening study (LAMS). A group of 365 women with normal Pap smear and negative or positive high-risk Hybrid Capture II test were prospectively followed-up for 24 months at Campinas and São Paulo (Brazil). The incidence rate (IR) and risk ratio (RR and 95% CI) of developing cytological or histological abnormality during the follow-up was calculated for HPV-negative and HPV-positive women. During the 12-month follow-up, women HPV-positive at baseline had developed a significantly higher rate of incident LSIL (IR=3.5%, RR=1.4; 95% CI 1.1-1.7) and HSIL (IR=0.7%, RR=1.5; 95% CI 1.4-1.7) abnormality. For HSIL, the IR increased to 2.1% and the RR increased to 1.7 (95% CI 1.5-1.9) among those followed for 24 months. Similarly, women with positive HPV tests were at a higher risk of developing CIN 2-3 (IR=2.6%, RR=1.5; 95% CI 1.4-1.6) during the first 12 months of follow-up, and for those followed for 24 months, this RR increased further to 1.7 (95% CI 1.5-1.9) although the IR was 0.7%. Oncogenic HPV infections comprise a significant risk factor for incident cervical abnormalities, and HPV test is a useful adjunct to cytology in detecting the high-risk patients among baseline PAP smear-negative women.
    European Journal of Obstetrics & Gynecology and Reproductive Biology 09/2007; 133(2):239-46. DOI:10.1016/j.ejogrb.2006.05.012 · 1.63 Impact Factor
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    ABSTRACT: Hybrid capture II (HC II) test for oncogenic human papillomaviruses (HPV) was carried out in a cohort of 4284 women at their first clinical visit. Overall prevalence of HPV was 17.1%, decreasing with age from 33.9% among women below 20 years to only 11.0% among those older than 41 years. HPV prevalence was significantly higher among current smokers (odds ratio [OR] = 1.31; 95% CI 1.1-1.6), in women with two or more lifetime sexual partners (OR = 1.9; 95% CI 1.6-2.4), and those women with two or more sexual partners during the past 12 months prior to examination (OR = 1.6; 95% CI 1.2-2.2). HPV detection increased in parallel with increasing cytologic abnormality, being highest in women with high-grade squamous intraepithelial lesion (P= 0.001). Specificity of the HPV test in detecting histologically confirmed cervical disease was 85% (95% CI 83.9-86.1). Sensitivity of the HPV test in detecting histologic abnormalities increased in parallel with disease severity, ranging from 51.5% for cervical intraepithelial neoplasia (CIN) 1 to 96.5% for CIN 3 and 100.0% for cancer, with respective decline of positive predictive value. These data suggest that HPV testing with HC II assay might be a viable screening tool among this population with relatively high prevalence of cervical disease.
    International Journal of Gynecological Cancer 05/2006; 16(3):955-62. DOI:10.1111/j.1525-1438.2006.00582.x · 1.95 Impact Factor
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    ABSTRACT: This is a European Commission (EC)-funded ongoing study known as the LAMS (Latin American Screening) study, where PAP smear/liquid-based cytology and screening colposcopy were compared with i) three optional screening tools [visual inspection with acetic acid (VIA), or Lugol's iodine (VILI), cervicography] and with ii) Hybrid Capture II from a) conventional samples and from b) self-samples, in women at different risk for cervical cancer in Brazil and Argentina. During 2002-2003, a cohort of 12,107 women attending four clinics: Campinas (CA), Sao Paulo (SP), Porto Alegre (PA) and Buenos Aires (BA), were interviewed for risk factors, and examined using the 8 diagnostic arms. Colposcopy was performed for women positive in any test and for 5% of women with baseline PAP-negative and 20% of HCII-negatives. All high-grade lesions (CIN2/3) were treated, and low-grade CIN are prospectively followed-up. Of the 12,107 women, the following baseline data are available: epidemiological data (n=11,996), conventional PAP smears (n=10,363), LBC, SurePATH (n=320), LBC, DNA-Citoliq (n=1,346), VIA (n=12.067), VILI (n=3,061), cervicography (n=279), screening colposcopy (n=3,437), HCII conventional (n=4,710), HCII self-sampling (n=246) and cervical biopsies (n=1,524). The four sub-cohorts differ significantly in all their baseline data on the implicated risk factors of cervical cancer, consonant with their origin from regions with different cancer incidence. Around 95% of all PAP smears were negative, with slight variations in the prevalence of LSIL and HSIL between the four centers. Significant differences were found in the detection rates of abnormal findings in VIA, VILI and colposcopy between the four centers (p=0.0001). The prevalence of HPV was practically identical (16.5-18.8%) in all four cohorts (p=0.486), with no differences in the relative viral loads. Biopsy results were different depending on whether the women underwent screening colposcopy (BA) or elective colposcopy (others). Four cohorts with significantly different baseline data are available, and prospective follow-up of these women permits analysis of whether variations in cervical cancer incidence in these regions is due to i) different natural history of the precursor lesions, or ii) due to different levels of exposure to the known risk factors.
    Anticancer research 09/2005; 25(5):3469-80. · 1.87 Impact Factor
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    ABSTRACT: To assess the contribution of visual inspection with acetic acid (VIA) and Hybrid Capture II (HCII) as adjunct methods to the Pap test in detecting cervical neoplasia. This was a cross-sectional study with 809 women who consecutively attended gynecological consultations at Campinas University, Brazil, from January 2002 to July 2003. Pap test, HCII, VIA, and colposcopy were offered to all patients. Performance of tests (alone or in combination) in detecting histologically confirmed lesions was evaluated. Of the 40 patients with CIN, 69% had CIN1, 26% CIN2 or CIN3 and one patient had invasive carcinoma. VIA had the best performance in detecting CIN, yielding 72% sensitivity and 91% specificity. Considering only CIN2 or worse as significant lesions, HCII had the best sensitivity (73%), while the Pap test was the most specific (93%). Combining the three exams, 92% of the CIN1 or worse were detected. When CIN1 was excluded from the analysis, Pap smear plus HCII delivered 82% sensitivity and 79% specificity. However, this combination yielded a very low (5%) PPV. VIA and HCII contributed to the screening of cervical neoplasia in a group of Brazilian women, but the cost-effectiveness of conjoint screening modalities is still debatable.
    Clinical and experimental obstetrics & gynecology 02/2005; 32(4):225-9. DOI:10.1097/01.ogx.0000216517.02145.f4 · 0.36 Impact Factor
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    ABSTRACT: To assess the performance indicators of visual inspection with acetic acid (VIA) and visual inspection with Lugol's iodine (VILI) in four Latin American centres participating in the ongoing Latin AMerican Screening (LAMS) study, in settings with moderate incidence of cervical disease and with poorly to moderately well-organized cervical cancer screening. Three Brazilian centres (São Paulo, Campinas and Porto Alegre) and one Argentine centre (Buenos Aires) recruited a total of 11,834 healthy women to undergo VIA, VILI, conventional Pap smear and Hybrid Capture II (HCII). Women who had a positive result from any of these tests were subjected to colposcopy and biopsies (if necessary), and women with high-grade cervical intraepithelial neoplasia (CIN) were properly treated. To control for verification bias, 5% of women with normal tests were referred for colposcopy, as were 20% of HCII-negative women. Data on VIA (n=11,834), VILI (n=2994), conventional Pap smear (n=10,138) and HCII (n=4195) were available for test comparisons, calculating sensitivity, specificity, and positive and negative predictive values. Overall test positivity was 11.6% for VIA, 23.0% for VILI, 2.2% for Pap smear (LSIL threshold), 1.1% for Pap smear (HSIL threshold) and 17.1% for HCII. VIA was positive in 61.8% of the women with CIN 1, 57.0% of those with CIN 2, 35.0% of women with CIN 3 and in 21 of 28 (75%) of women with cancer. Approximately 10% of women with no detectable disease had an abnormal VIA. Regarding VILI, 83.3% of women diagnosed with CIN 1 and 62.5% of those with CIN 3 had an abnormal test. VILI failed to detect one of three cases of cancer. Both the sensitivity, specificity and positive predictive value of VIA and VILI in detecting CIN 2 or CIN 3 could be significantly improved depending on the combination with Pap smear or HCII (sensitivity up to 100.0% and specificity up to 99.8%). The LAMS study failed to reproduce the performance figures obtained with VIA and VILI (as stand-alone tests) in some other settings, where the prevalence of cervical disease was higher. However, a combined use of VIA or VILI with the Pap test or HCII allowed specific detection of cervical abnormalities.
    Journal of Medical Screening 02/2005; 12(3):142-9. DOI:10.1258/0969141054855328 · 2.72 Impact Factor
  • Joana Fróes Bragança
    Revista Brasileira de Ginecologia e Obstetrícia 01/2005; 27(1). DOI:10.1590/S0100-72032005000100010
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    Joana Fróes Bragança
    Revista Brasileira de Ginecologia e Obstetrícia 01/2005; 27(1):46-46.
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    Revista Brasileira de Ginecologia e Obstetrícia 04/2004; 26(3):251-251. DOI:10.1590/S0100-72032004000300016