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  • Original Article

    Underdiagnosis of cervical intraepithelial neoplasia (CIN) 2 orWorse Lesion inWomenwith a Previous Colposcopy-Guided Biopsy Showing CIN 1

    Rev Bras Ginecol Obstet. 2017;39(3):123-127

    Summary

    Original Article

    Underdiagnosis of cervical intraepithelial neoplasia (CIN) 2 orWorse Lesion inWomenwith a Previous Colposcopy-Guided Biopsy Showing CIN 1

    Rev Bras Ginecol Obstet. 2017;39(3):123-127

    DOI 10.1055/s-0037-1599071

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    Abstract

    Objective

    Expectant follow-up for biopsy-proven cervical intraepithelial neoplasia (CIN) 1 is the current recommendation for the management of this lesion. Nevertheless, the performance of the biopsy guided by colposcopy might not be optimal. Therefore, this study aimed to calculate the rate of underdiagnoses of more severe lesions in women with CIN 1 diagnosis and to evaluate whether age, lesion extent and biopsy site are factors associated with diagnostic failure.

    Methods

    Eighty women with a diagnosis of CIN 1 obtained by colposcopy-guided biopsy were selected for this study. These women were herein submitted to large loop excision of the transformation zone (LLETZ). The prevalence of lesions more severe than CIN 1 was calculated, and the histological diagnoses of the LLETZ specimens were grouped into two categories: "CIN 1 or less" and "CIN 2 or worse."

    Results

    The prevalence of lesions diagnosed as CIN 2 or worse in the LLETZ specimens was of 19% (15/80). Three women revealed CIN 3, and 1 woman revealed a sclerosing adenocarcinoma stage I-a, a rare type of malignant neoplasia of low proliferation, which was not detected by either colposcopy or previous biopsy. The underdiagnosis of CIN 2 was not associated with the women's age, lesion extension and biopsy site.

    Conclusions

    The standard methods used for the diagnosis of CIN 1 may underestimate the severity of the true lesion and, therefore, women undergoing expectant management must have an adequate follow-up.

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  • Artigos Originais

    Why does the prevalence of cytopathological results of cervical cancer screening can vary significantly between two regions of Brazil?

    Rev Bras Ginecol Obstet. 2014;36(5):192-197

    Summary

    Artigos Originais

    Why does the prevalence of cytopathological results of cervical cancer screening can vary significantly between two regions of Brazil?

    Rev Bras Ginecol Obstet. 2014;36(5):192-197

    DOI 10.1590/S0100-7203201400050002

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    PURPOSE:

    To analyze the prevalence of cervical cytopathological results for the screening of cervical cancer with regard to women's age and time since the last examination in Maceió and Rio de Janeiro, Brazil, among those assisted by the Brazilian Unified Health System.

    METHODS:

    Cervical cytopathological results available in the Information System of Cervical Cancer Screening for the year 2011 were analyzed, corresponding to 206,550 for Rio de Janeiro and 45,243 for Maceió.

    RESULTS:

    In Rio de Janeiro, examination at one and two year intervals predominated, while in Maceió examination at one and three year intervals had a higher predominance. Women who underwent cervical smear screening in Maceió were older than those in Rio de Janeiro. The prevalence of invasive squamous cell carcinoma was similar for the two cities, but all the other results presented a higher prevalence in Rio de Janeiro: ASCUS (PR=5.32; 95%CI 4.66-6.07); ASCH (PR=4.27; 95%CI 3.15-5.78); atypical glandular cells (PR=10.02; 95%CI 5.66-17.76); low-grade squamous intraepithelial lesions (PR=6.10; 95%CI 5.27-7.07); high-grade squamous intraepithelial lesions (PR=8.90; 95%CI 6.50-12.18) and adenocarcinoma (PR=3.00; 95%CI 1.21-7.44). The rate of unsatisfactory cervical samples was two times higher in Maceió and that of rejected samples for analysis was five times higher in Maceió when compared to Rio de Janeiro.

    CONCLUSIONS:

    The prevalence rates of altered cervical cytopathological results was significantly higher in Rio de Janeiro than in Maceió. There is no objective information that may justify this difference. One hypothesis is that there may be a difference in the diagnostic performance of the cervical cancer screening, which could be related to the quality of the Pap smear. Thus, these findings suggest that it would be necessary to perform this evaluation at national level, with emphasis on the performance of cervical cancer screening in order to improve the effectiveness of cervical cancer control.

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    Why does the prevalence of cytopathological results of cervical cancer screening can vary significantly between two regions of Brazil?
  • Original Article

    Cervical Cancer Screening with DNA-HPV Testing and Precancerous Lesions Detection: A Brazilian Population-based Demonstration Study

    Rev Bras Ginecol Obstet. 2023;45(1):21-30

    Summary

    Original Article

    Cervical Cancer Screening with DNA-HPV Testing and Precancerous Lesions Detection: A Brazilian Population-based Demonstration Study

    Rev Bras Ginecol Obstet. 2023;45(1):21-30

    DOI 10.1055/S-0043-1763493

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    Abstract

    Objective

    To evaluate the rates of precancerous lesions, colposcopy referral, and positive predictive value (PPV) by age groups of a population-based screening with DNA-HPV testing.

    Methods

    The present demonstration study compared 16,384 HPV tests performed in the first 30 months of the program with 19,992 women tested in the cytology screening. The colposcopy referral rate and PPV for CIN2+ and CIN3+ by age group and screening program were compared. The statistical analysis used the chi-squared test and odds ratio (OR) with 95% confidence interval (95%CI).

    Results

    The HPV tests were 3.26% positive for HPV16-HPV18 and 9.92% positive for 12 other HPVs with a 3.7 times higher colposcopy referral rate than the cytology program, which had 1.68% abnormalities. Human Papillomavirus testing detected 103 CIN2, 89 CIN3, and one AIS, compared with 24 CIN2 and 54 CIN3 detected by cytology (p < 0.0001). The age group between 25 and 29 years old screened by HPV testing had 2.4 to 3.0 times more positivity, 13.0% colposcopy referral, twice more than women aged 30 to 39 years old (7.7%; p < 0.0001), and detected 20 CIN3 and 3 early-stage cancer versus 9 CIN3 and no cancer by cytology screening (CIN3 OR= 2.10; 95%CI: 0.91 -5.25; p = 0.043). The PPV of colposcopy for CIN2+ ranged from 29.5 to 41.0% in the HPV testing program.

    Conclusion

    There was a significant increase in detections of cervix precancerous lesions in a short period of screening with HPV testing. In women < 30 years old, the HPV testing exhibited more positivity, high colposcopy referral rate, similar colposcopy PPV to older women, and more detection of HSIL and early-stage cervical cancer.

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  • Original Article

    Tinidazole versus cefazolin in antibiotic prophylaxis of vaginal and abdominal hysterectomy

    Rev Bras Ginecol Obstet. 2008;30(11):544-549

    Summary

    Original Article

    Tinidazole versus cefazolin in antibiotic prophylaxis of vaginal and abdominal hysterectomy

    Rev Bras Ginecol Obstet. 2008;30(11):544-549

    DOI 10.1590/S0100-72032008001100003

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    PURPOSE: to compare the efficacy of tinidazole and cephazolin on the febrile and infectious morbidity of post vaginal and abdominal hysterectomy antibiotic prophylaxis. METHODS: randomized clinical study, where women admitted to hospital for hysterectomy were randomly allocated in one of the following antibiotic prophylaxis groups: Group C (2 g of IV cephazolin in the anesthetic induction); Group T (2 g of tinidazole orally, 12 hours before the surgery); or Group C+T (2 g of tinidazole orally 12 hours before the surgery and 2g of IV cephazolin in the anesthetic induction). Cervicovaginal smears were collected for specific cultures and the diagnosis of bacterial vaginosis (BV) was based in Amsel and Nugent's criteria. The patients were reevaluated 7 and 30 days after the surgery for signs of febrile and/or infectious morbidity. The χ2 or the Fisher's exact test was used to assess differences among the three groups, with a significance level of 5%. The sample power (1-β) was calculated through the SAS program. RESULTS: seven days after the hysterectomy, infectious morbidity was diagnosed in 6.6% of the women, but with no significant difference among the three groups studied (p=0.12). There was no febrile or infectious morbidity at the immediate post-surgical period or after 30 days from the surgery. BV ratio at the pre-surgical period was significantly higher among the women submitted to vaginal hysterectomy, rather than among the ones submitted to abdominal hysterectomy (27 versus 7%, p=0.02). BV ratio was also higher after 30 days, among the women submitted to vaginal hysterectomy (20 versus 8%), though without statistical significance (p=0.19). CONCLUSIONS: the use of tinidazole, isolated or associated with cephazolin has not presented higher efficacy, than the use of cephazolin, alone to prevent febrile or infectious morbidity post hysterectomy. The high ratio of BV at the immediate pre-surgery period among the women submitted to vaginal hysterectomy suggests that this infection must be better investigated and properly treated before the surgery.

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  • Original Article

    Maternal Deaths from COVID-19 in Brazil: Increase during the Second Wave of the Pandemic

    Rev Bras Ginecol Obstet. 2022;44(6):567-572

    Summary

    Original Article

    Maternal Deaths from COVID-19 in Brazil: Increase during the Second Wave of the Pandemic

    Rev Bras Ginecol Obstet. 2022;44(6):567-572

    DOI 10.1055/s-0042-1748975

    Views4

    Abstract

    Objective

    To compare death rates by COVID-19 between pregnant or postpartum and nonpregnant women during the first and second waves of the Brazilian pandemic.

    Methods

    In the present population-based evaluation data from the Sistema de Informação da Vigilância Epidemiológica da Gripe (SIVEP-Gripe, in the Portuguese acronym), we included women with c (ARDS) by COVID-19: 47,768 in 2020 (4,853 obstetric versus 42,915 nonobstetric) and 66,689 in 2021 (5,208 obstetric versus 61,481 nonobstetric) and estimated the frequency of in-hospital death.

    Results

    We identified 377 maternal deaths in 2020 (first wave) and 804 in 2021 (second wave). The death rate increased 2.0-fold for the obstetric (7.7 to 15.4%) and 1.6-fold for the nonobstetric groups (13.9 to 22.9%) from 2020 to 2021 (odds ratio [OR]: 0.52; 95% confidence interval [CI]: 0.47–0.58 in 2020 and OR: 0.61; 95%CI: 0.56– 0.66 in 2021; p < 0.05). In women with comorbidities, the death rate increased 1.7-fold (13.3 to 23.3%) and 1.4-fold (22.8 to 31.4%) in the obstetric and nonobstetric groups, respectively (OR: 0.52; 95%CI: 0.44–0.61 in 2020 to OR: 0.66; 95%CI: 0.59–0.73 in 2021; p <0.05). In women without comorbidities, the mortality rate was higher for nonobstetric (2.4 times; 6.6 to 15.7%) than for obstetric women (1.8 times; 5.5 to 10.1%; OR: 0.81; 95%CI: 0.69–0.95 in 2020 and OR: 0.60; 95%CI: 0.58–0.68 in 2021; p <0.05).

    Conclusion

    There was an increase in maternal deaths from COVID-19 in 2021 compared with 2020, especially in patients with comorbidities. Death rates were even higher in nonpregnant women, with or without comorbidities.

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    Maternal Deaths from COVID-19 in Brazil: Increase during the Second Wave of the Pandemic
  • Original Article

    Laboratorial Aspects of Cytolytic Vaginosis and Vulvovaginal Candidiasis as a Key for Accurate Diagnosis: A Pilot Study

    Rev Bras Ginecol Obstet. 2020;42(10):634-641

    Summary

    Original Article

    Laboratorial Aspects of Cytolytic Vaginosis and Vulvovaginal Candidiasis as a Key for Accurate Diagnosis: A Pilot Study

    Rev Bras Ginecol Obstet. 2020;42(10):634-641

    DOI 10.1055/s-0040-1715139

    Views1

    Abstract

    Objective

    To identify clinical, microscopic, and biochemical characteristics that differentiate cytolytic vaginosis (CV) from vulvovaginal candidiasis (VVC).

    Methods

    The present cross-sectional study analyzed the vaginal contents of 24 non-pregnant women aged 18 to 42 years who were attended at the Genital Infections Clinic at Centro de Atenção Integral à Saúde da Mulher da Universidade Estadual de Campinas (CAISM-UNICAMP). They were diagnosed either with (CV = 8, VVC = 8) or without vulvovaginitis or vaginal dysbiosis (controls). The socio-demographic, clinical, and gynecological data were obtained from a detailed patient interview. Samples of the vaginal contents were collected for analysis of vaginal pH, gram stain, and specific fungal culture. The Kruskal-Wallis and Fisher exact tests were used to compare the differences between the groups. Odds ratios were used to compare the categorical variables. The significance level was considered at p < 0.05.

    Results

    Both women with CV and VVC had a lumpy vaginal discharge (p = 0,002) and vaginal hyperemia (p = 0.001), compared with controls. The inflammatory process was more intense in the VVC group (p = 0.001). In the CV group, there was statistical significance for the lactobacillus amount (p = 0.006), vaginal epithelium lysis (p = 0.001), and vaginal pH (p = 0.0002).

    Conclusion

    Cytolytic vaginosis and VVC diagnoses rarely differ on clinical characteristics but have different laboratorial findings. The present study highlights the importance of conducting an accurate investigation through laboratory tests rather than clinical criteria to avoid misdiagnosis.

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    Laboratorial Aspects of Cytolytic Vaginosis and Vulvovaginal Candidiasis as a Key for Accurate Diagnosis: A Pilot Study
  • Original Article

    Influence of vaginal environment of pregnant women on the recovery of group B streptococcus in Stuart and Amies transport media

    Rev Bras Ginecol Obstet. 2005;27(11):672-676

    Summary

    Original Article

    Influence of vaginal environment of pregnant women on the recovery of group B streptococcus in Stuart and Amies transport media

    Rev Bras Ginecol Obstet. 2005;27(11):672-676

    DOI 10.1590/S0100-72032005001100007

    Views0

    PURPOSE: to evaluate the influence of vaginal environment of pregnant women on group B streptococcus (GBS) survival after 8, 24 e 48 h in Amies and Stuart transport media. METHODS: Three vaginal samples were collected from 30 pregnant women attending the Prenatal Care Outpatient Clinic of the Centro de Atenção Integral à Saúde da Mulher (CAISM), Universidade Estadual de Campinas (UNICAMP). The first sample was placed directly onto Todd-Hewitt selective medium; the second was used to perform a gram-stained microscopy, and the third swab was placed in 2 mL physiological saline to which 200 µL of a suspension with 1-2 x 10(8) colony-forming units of GBS was added. After homogenization, six swabs were collected from this suspension (3 from Amie medium and 3 from Stuart medium). These six swabs were kept at room temperature for 8, 24 and 48 h and then incubated on blood agar. Bacterial growth at 37ºC was observed after a 24-h incubation period and it was semiquantitatively graded (0-3+) according to the number of colonies. Statistical analysis was performed by the exact Fisher test and the level of significance was set at 0.05. RESULTS: the recovery of GBS after 48-h storage in Amie and Stuart media was 97 e 87%, respectively. In one of the four cases where no GBS recovery was possible after 48 h of storage, vaginal pH was higher than 4.5, and in two of those cases cytolytic vaginosis was found. CONCLUSIONS: both transport media showed to be appropriate for GBS recovery up to 48 h after sampling. Characteristics of the vaginal enviroment did not influence GBS recovery as observed in this study.

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  • Original Article

    Bacterial vaginosis and high-risk HPV-DNA in women submitted to diathermic conization for the treatment of high-grade cervical intra-epithelial neoplasia

    Rev Bras Ginecol Obstet. 2004;26(9):721-725

    Summary

    Original Article

    Bacterial vaginosis and high-risk HPV-DNA in women submitted to diathermic conization for the treatment of high-grade cervical intra-epithelial neoplasia

    Rev Bras Ginecol Obstet. 2004;26(9):721-725

    DOI 10.1590/S0100-72032004000900008

    Views1

    PURPOSE: to analyze the association between bacterial vaginosis (BV), high-risk HPV DNA, and Pap smear abnormalities in women submitted to diathermic conization for the treatment of high-grade cervical intraepithelial neoplasia (CIN 2 or 3). METHODS: a descriptive clinical study with 81 women submitted to diathermic conization for the treatment of CIN 2 or 3. Initial Pap smear was performed by the time of the biopsy and was also used to verify the presence of BV. Prior to conization, samples for the detection of high-risk HPV DNA through hybrid capture II (HC II) were collected. A control visit was scheduled for four months after the conization to repeat these tests. Twenty-seven women were found to have BV and 54 were not. Statistical analysis comprised odds ratios (OR) to assess the correlations between BV and HPV detection before and after diathermic conization and cytological abnormalities. All analyses were performed with a 95% confidence interval (95% CI). RESULTS: high-risk HPV DNA detection before conization was identical in both groups (89%). After conization, HPV DNA detection decreased to 26 and 18% in the groups with and without BV, respectively (OR=1.5; 95% CI 0.5 to 4.6). In addition, 41% of the women with BV and 20% without BV showed Pap smear abnormalities (OR=2.7; 95% CI 1.0 to 7.4). Regarding these 22 women with Pap smear abnormalities approximately four months after the diathermic conization, 83% of the BV group tested positive for HPV DNA compared with 50% in the group without BV (OR=5.0; IC 95% 0.5 a 52.9). CONCLUSION: women with BV presented more Pap smear abnormalities after conization when compared to the women without BV, although this was not statistically significant. This association was not related to high-risk HPV DNA.

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