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Revista Brasileira de Ginecologia e Obstetrícia. 2017;39(7):317-321
This study aimed to evaluate and validate the qualitative human chorionic gonadotropin β subunit (β-hCG) test of the vaginal fluid washings of pregnant women with premature rupture of fetal membranes (PROM).
Cross-sectional study of pregnant women between gestational weeks 24 and 39 who underwent consultations in one of our institutions. They were divided into two groups: group A (pregnant women clinically diagnosed with PROM) and group B (pregnant women without loss of amniotic liquid). The patients were subjected to a vaginal fluid washing with 3 mL of saline solution, which was aspirated subsequently with the same syringe. The solution was immediately sent to the laboratory to perform the vaginal β-hCG test with cut-off points of 10 mIU/mL (β-hCG-10) and/or 25 mIU/mL (β-hCG-25).
The β-hCG-10 test of the vaginal secretion was performed in 128 cases. The chi-squared test with Yates’ correction showed a statistically significant difference between the 2 groups (p = 0.0225). The sensibility, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy parameters were 77.1%, 43.6%, 52.3%; 70.4%; and 58.6% respectively. The β-hCG-25 test of the vaginal washing was performed in 49 cases. The analysis by Fisher’s exact test showed a statistically significant difference between the groups (p = 0.0175). The sensibility, specificity, PPV, NPV, and accuracy parameters were 44.4%, 87.1%, 66.6%; 72.9%; and 71.4% respectively.
The β-hCG-25 test showed better accuracy for the diagnosis of PROM, and can corroborate the early diagnosis of PROM because it is a simple and quick exam.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2017;39(7):317-321
This study aimed to evaluate and validate the qualitative human chorionic gonadotropin β subunit (β-hCG) test of the vaginal fluid washings of pregnant women with premature rupture of fetal membranes (PROM).
Cross-sectional study of pregnant women between gestational weeks 24 and 39 who underwent consultations in one of our institutions. They were divided into two groups: group A (pregnant women clinically diagnosed with PROM) and group B (pregnant women without loss of amniotic liquid). The patients were subjected to a vaginal fluid washing with 3 mL of saline solution, which was aspirated subsequently with the same syringe. The solution was immediately sent to the laboratory to perform the vaginal β-hCG test with cut-off points of 10 mIU/mL (β-hCG-10) and/or 25 mIU/mL (β-hCG-25).
The β-hCG-10 test of the vaginal secretion was performed in 128 cases. The chi-squared test with Yates’ correction showed a statistically significant difference between the 2 groups (p = 0.0225). The sensibility, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy parameters were 77.1%, 43.6%, 52.3%; 70.4%; and 58.6% respectively. The β-hCG-25 test of the vaginal washing was performed in 49 cases. The analysis by Fisher’s exact test showed a statistically significant difference between the groups (p = 0.0175). The sensibility, specificity, PPV, NPV, and accuracy parameters were 44.4%, 87.1%, 66.6%; 72.9%; and 71.4% respectively.
The β-hCG-25 test showed better accuracy for the diagnosis of PROM, and can corroborate the early diagnosis of PROM because it is a simple and quick exam.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(12):726-730
DOI 10.1590/S0100-72032005001200004
PURPOSE: to study the influence of the use of oral contraceptives (OC) on the number of Langerhans' cells in women without cervical infection by human papillomavirus (HPV). METHODS: thirty women who presented abnormal cervical cytology and colposcopy-guided biopsy with samples of uterine cervix negative for HPV were selected. The absence of HPV DNA was confirmed by hybrid capture. Langerhans' cells were identified by immunohistochemistry using anti-S100 antigens. The cells visualized in light microscopy were counted using the Cytoviewer software. The nonparametric Wilcoxon rank sum test was employed for statistical analysis. RESULTS: the average number of Langerhans' cells in OC users was 320.7/mm² and in non-users 190.7/mm², this difference being statistically nonsignificant. In the intermediary layer of the cervical epithelium a tendency towards the increase of these cells was observed, with the averages 192.1/mm² for OC users and 93.4/mm² for non-users (p=0.05). CONCLUSIONS: the present study reports a tendency towards the increase in the number of the Langerhans' cells among OC users. This result suggests the OC may induce alterations in the number of Langerhans' cells, but considering the limited number of cases, more studies should be developed for a definitive conclusion.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(12):726-730
DOI 10.1590/S0100-72032005001200004
PURPOSE: to study the influence of the use of oral contraceptives (OC) on the number of Langerhans' cells in women without cervical infection by human papillomavirus (HPV). METHODS: thirty women who presented abnormal cervical cytology and colposcopy-guided biopsy with samples of uterine cervix negative for HPV were selected. The absence of HPV DNA was confirmed by hybrid capture. Langerhans' cells were identified by immunohistochemistry using anti-S100 antigens. The cells visualized in light microscopy were counted using the Cytoviewer software. The nonparametric Wilcoxon rank sum test was employed for statistical analysis. RESULTS: the average number of Langerhans' cells in OC users was 320.7/mm² and in non-users 190.7/mm², this difference being statistically nonsignificant. In the intermediary layer of the cervical epithelium a tendency towards the increase of these cells was observed, with the averages 192.1/mm² for OC users and 93.4/mm² for non-users (p=0.05). CONCLUSIONS: the present study reports a tendency towards the increase in the number of the Langerhans' cells among OC users. This result suggests the OC may induce alterations in the number of Langerhans' cells, but considering the limited number of cases, more studies should be developed for a definitive conclusion.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2004;26(4):289-294
DOI 10.1590/S0100-72032004000400004
OBJECTIVE: to study the relationship of biobehavioral factors, such as age, menarche, number of gestations, and age of first sexual intercourse, with changes in Langerhans'cells in women with negative hybrid capture for HPV. METHODS: thirty women referred due to abnormal cervical cytology or premalignant cervical lesions were studied and underwent colposcopy, guided biopsy and histopathological exams. The Langerhans' cells were identified by immunohistochemical (S100+) exams. Langerhans' cells visualized in brown color were counted using the software Cytoviewer. The nonparametric Wilcoxon rank-sum test was employed for statistical analysis. RESULTS: the number of Langerhans' cells in women who had menarche after 13 years old presented statistically significant difference (173.34 cell/mm²) compared to the group whose menarche occurred before 13 (271.41 cell/mm²). The age at the first sexual intercourse was associated with the low number of Langerhans' cells, 127.15 cell/mm² and 250.14 cell/mm², respectively, for the beginning of the sexual activity up to 17 years old and after 17 (p=0.03). Previous cauterizations of the uterine cervix have been related to a lower number of Langerhans' cells in the epithelium, with the average 120.30 cell/mm² as compared to 236.06 cell/mm² for those women who never underwent that procedure (p=0.05). Other factors such as the patient's age and the number of gestations showed no statistically significant differences in the density of Langerhans' cells. CONCLUSIONS: the present study reports the association of biobehavioral factors with decrease in the number of Langerhans' cell.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2004;26(4):289-294
DOI 10.1590/S0100-72032004000400004
OBJECTIVE: to study the relationship of biobehavioral factors, such as age, menarche, number of gestations, and age of first sexual intercourse, with changes in Langerhans'cells in women with negative hybrid capture for HPV. METHODS: thirty women referred due to abnormal cervical cytology or premalignant cervical lesions were studied and underwent colposcopy, guided biopsy and histopathological exams. The Langerhans' cells were identified by immunohistochemical (S100+) exams. Langerhans' cells visualized in brown color were counted using the software Cytoviewer. The nonparametric Wilcoxon rank-sum test was employed for statistical analysis. RESULTS: the number of Langerhans' cells in women who had menarche after 13 years old presented statistically significant difference (173.34 cell/mm²) compared to the group whose menarche occurred before 13 (271.41 cell/mm²). The age at the first sexual intercourse was associated with the low number of Langerhans' cells, 127.15 cell/mm² and 250.14 cell/mm², respectively, for the beginning of the sexual activity up to 17 years old and after 17 (p=0.03). Previous cauterizations of the uterine cervix have been related to a lower number of Langerhans' cells in the epithelium, with the average 120.30 cell/mm² as compared to 236.06 cell/mm² for those women who never underwent that procedure (p=0.05). Other factors such as the patient's age and the number of gestations showed no statistically significant differences in the density of Langerhans' cells. CONCLUSIONS: the present study reports the association of biobehavioral factors with decrease in the number of Langerhans' cell.