Você pesquisou por y - Revista Brasileira de Ginecologia e Obstetrícia
Summary
Rev Bras Ginecol Obstet. 2015;37(5):203-207
DOI 10.1590/SO100-720320150005293
To determine the frequency of Human Papillomavirus (HPV) in the placenta, in the
colostrum and in the umbilical cord blood of parturient women and their newborns
assisted at the Clinic of Gynecology and Obstetrics of the University Hospital of
Rio Grande (RS), Brazil.
Biopsies were collected from 150 placentas on the maternal side, 150 on the fetal
side, 138 samples of umbilical cord blood and 118 of the colostrum. The placenta
biopsies were collected from the central and peripheral portions. DNA was
extracted according to the manufacturer's protocol and to a reference found in the
literature. HPV was detected by the nested polymerase chain reaction (PCR-Nested)
using primers MY09/11 and GP5/GP6. Genotyping was performed by direct sequencing.
The participants responded to a self-applied questionnaire with demographic and
clinical data, in order to characterize the sample.
HPV was detected in 4% (6/150) of cases on the mother's side of the placentas, in
3.3% (5/150) on the fetal side, in 2.2% (3/138) in umbilical cord blood and in
0.84% (1/118) in colostrum samples. The vertical transmission rate was 50%. HPV-6
was the low-risk genotype found (60%) and the high-risk genotypes were HPV-16 and
HPV-18 (20% each).
These results suggest that HPV can infect the placenta, the colostrum and the
umbilical cord blood.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):203-207
DOI 10.1590/SO100-720320150005293
To determine the frequency of Human Papillomavirus (HPV) in the placenta, in the
colostrum and in the umbilical cord blood of parturient women and their newborns
assisted at the Clinic of Gynecology and Obstetrics of the University Hospital of
Rio Grande (RS), Brazil.
Biopsies were collected from 150 placentas on the maternal side, 150 on the fetal
side, 138 samples of umbilical cord blood and 118 of the colostrum. The placenta
biopsies were collected from the central and peripheral portions. DNA was
extracted according to the manufacturer's protocol and to a reference found in the
literature. HPV was detected by the nested polymerase chain reaction (PCR-Nested)
using primers MY09/11 and GP5/GP6. Genotyping was performed by direct sequencing.
The participants responded to a self-applied questionnaire with demographic and
clinical data, in order to characterize the sample.
HPV was detected in 4% (6/150) of cases on the mother's side of the placentas, in
3.3% (5/150) on the fetal side, in 2.2% (3/138) in umbilical cord blood and in
0.84% (1/118) in colostrum samples. The vertical transmission rate was 50%. HPV-6
was the low-risk genotype found (60%) and the high-risk genotypes were HPV-16 and
HPV-18 (20% each).
These results suggest that HPV can infect the placenta, the colostrum and the
umbilical cord blood.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):208-215
DOI 10.1590/SO100-720320150005321
To describe the evolution of the prevalence of anemia in pregnant adolescents
attended at a public maternity in the city of Rio de Janeiro from 2004 to 2013.
A retrospective cross-sectional study with 628 pregnant/postpartum women divided
into 3 groups: Group A (2004-2006), Group B (2007-2010) and Group C (2013).
Information about anthropometric, clinical, sociodemographic data and obstetric
and prenatal care of adolescents was obtained from medical records of the pregnant
women. A hemoglobin concentration n<11 g/dL was considered to be anemia. Data
were analyzed statistically by the chi-square test, Student's t-test and ANOVA,
and the post hoc Tukey test.
The prevalence of gestational anemia over the years was 43% (GA=138), 36% (GB=80)
and 47.1% (GC=40) and the overall prevalence for the 2004-2013 period was 41.1%
(n=258). The occurrence of anemic pregnant women increased with the progression of
pregnancy; however, in the 3rd quarter there was a decrease in the prevalence of
anemia in GB (29.3%) compared to GA (38.7%; p=0.04). Factors associated with
anemia were number of prenatal visits and prenatal nutritional assistance, place
of residence, pre-pregnancy BMI, and gestational weight gain.
The results showed that the prevalence of anemia among pregnant adolescents seen
at a public maternity is high. There was no reduction of anemia during the study
period and other factors in addition to iron deficiency were involved in the
genesis of anemia in this population.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):208-215
DOI 10.1590/SO100-720320150005321
To describe the evolution of the prevalence of anemia in pregnant adolescents
attended at a public maternity in the city of Rio de Janeiro from 2004 to 2013.
A retrospective cross-sectional study with 628 pregnant/postpartum women divided
into 3 groups: Group A (2004-2006), Group B (2007-2010) and Group C (2013).
Information about anthropometric, clinical, sociodemographic data and obstetric
and prenatal care of adolescents was obtained from medical records of the pregnant
women. A hemoglobin concentration n<11 g/dL was considered to be anemia. Data
were analyzed statistically by the chi-square test, Student's t-test and ANOVA,
and the post hoc Tukey test.
The prevalence of gestational anemia over the years was 43% (GA=138), 36% (GB=80)
and 47.1% (GC=40) and the overall prevalence for the 2004-2013 period was 41.1%
(n=258). The occurrence of anemic pregnant women increased with the progression of
pregnancy; however, in the 3rd quarter there was a decrease in the prevalence of
anemia in GB (29.3%) compared to GA (38.7%; p=0.04). Factors associated with
anemia were number of prenatal visits and prenatal nutritional assistance, place
of residence, pre-pregnancy BMI, and gestational weight gain.
The results showed that the prevalence of anemia among pregnant adolescents seen
at a public maternity is high. There was no reduction of anemia during the study
period and other factors in addition to iron deficiency were involved in the
genesis of anemia in this population.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):216-221
DOI 10.1590/SO100-720320150005272
To compare obstetric outcomes of induced preterm twin births (under 32 weeks gestation) with those spontaneously conceived.
Prospective study of twin pregnancies (25 induced and 157 spontaneously conceived) developed over a period of 16 years in a tertiary obstetric center. Demographic factors, obstetric complications, gestational age at delivery, mode of delivery, birth weight and immediate newborn outcome were compared.
The analysis of obstetrical complications concerning urinary or other infections, hypertensive disorders of pregnancy, gestational diabetes, fetal malformations, intrauterine fetal death, intrauterine growth restriction and intrauterine discordant growth reveal no significant statistical differences between the two groups. First trimester bleeding was higher in the induced group (24 versus 8.3%, p=0.029). The cesarean delivery rate was 52.2% in spontaneous gestations and 64% in induced gestations. Gestational age at delivery, birth weight, Apgar scores at first and fifth minutes, admissions to Neonatal Intensive Care Unit and puerperal complications show no statistically significant differences between the two groups. These results were independent of chorionicity and induction method.
The mode of conception did not influence obstetric and neonatal outcomes. Although induced pregnancies have higher risk of first trimester bleeding, significant differences were not observed regarding other obstetric and puerperal complications and neonatal results.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):216-221
DOI 10.1590/SO100-720320150005272
To compare obstetric outcomes of induced preterm twin births (under 32 weeks gestation) with those spontaneously conceived.
Prospective study of twin pregnancies (25 induced and 157 spontaneously conceived) developed over a period of 16 years in a tertiary obstetric center. Demographic factors, obstetric complications, gestational age at delivery, mode of delivery, birth weight and immediate newborn outcome were compared.
The analysis of obstetrical complications concerning urinary or other infections, hypertensive disorders of pregnancy, gestational diabetes, fetal malformations, intrauterine fetal death, intrauterine growth restriction and intrauterine discordant growth reveal no significant statistical differences between the two groups. First trimester bleeding was higher in the induced group (24 versus 8.3%, p=0.029). The cesarean delivery rate was 52.2% in spontaneous gestations and 64% in induced gestations. Gestational age at delivery, birth weight, Apgar scores at first and fifth minutes, admissions to Neonatal Intensive Care Unit and puerperal complications show no statistically significant differences between the two groups. These results were independent of chorionicity and induction method.
The mode of conception did not influence obstetric and neonatal outcomes. Although induced pregnancies have higher risk of first trimester bleeding, significant differences were not observed regarding other obstetric and puerperal complications and neonatal results.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):222-228
DOI 10.1590/SO100-720320150005183
To estimate the prevalence of bacterial vaginosis (BV), candidiasis and
trichomoniasis and compare the findings of physical examination of the vaginal
secretion with the microbiological diagnosis obtained by cytology study of a
vaginal smear using the Papanicolaou method.
A cross-sectional study of 302 women aged 20 to 87 years, interviewed and
submitted to a gynecology test for the evaluation of vaginal secretion and
collection of a cytology smear, from June 2012 to May 2013. Sensitivity analyses
were carried out and specificity, positive predictive value (PPV) and negative
predictive value (NPV) with their respective 95%CI were determined to assess the
accuracy of the characteristics of vaginal secretion in relation to the
microbiological diagnosis of the cytology smear . The kappa index (k) was used to
assess the degree of agreement between the clinical features of vaginal secretion
and the microbiological findings obtained by cytology.
The prevalence of BV, candidiasis and trichomoniasis was 25.5, 9.3 and 2.0%,
respectively. The sensitivity, specificity, PPV and NPV of the clinical
characteristics of vaginal secretion for the cytological diagnosis of BV were 74,
78.6, 54.3 and 89.9%, respectively. The sensitivity, specificity, PPV and the NPV
of the clinical characteristics of vaginal secretion for the cytological diagnosis
of candidiasis were 46.4, 86.2, 25.5 and 94%, respectively. The correlation
between the clinical evaluation of vaginal secretion and the microbiological
diagnosis of BV, candidiasis and trichomoniasis, assessed by the kappa index, was
0.47, 0.23 and 0.28, respectively.
The most common cause of abnormal vaginal secretion was BV. The clinical
evaluation of vaginal secretion presented amoderate to weak agreement with the
microbiological diagnosis, indicating the need for complementary investigation of
the clinical findings of abnormal vaginal secretion.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):222-228
DOI 10.1590/SO100-720320150005183
To estimate the prevalence of bacterial vaginosis (BV), candidiasis and
trichomoniasis and compare the findings of physical examination of the vaginal
secretion with the microbiological diagnosis obtained by cytology study of a
vaginal smear using the Papanicolaou method.
A cross-sectional study of 302 women aged 20 to 87 years, interviewed and
submitted to a gynecology test for the evaluation of vaginal secretion and
collection of a cytology smear, from June 2012 to May 2013. Sensitivity analyses
were carried out and specificity, positive predictive value (PPV) and negative
predictive value (NPV) with their respective 95%CI were determined to assess the
accuracy of the characteristics of vaginal secretion in relation to the
microbiological diagnosis of the cytology smear . The kappa index (k) was used to
assess the degree of agreement between the clinical features of vaginal secretion
and the microbiological findings obtained by cytology.
The prevalence of BV, candidiasis and trichomoniasis was 25.5, 9.3 and 2.0%,
respectively. The sensitivity, specificity, PPV and NPV of the clinical
characteristics of vaginal secretion for the cytological diagnosis of BV were 74,
78.6, 54.3 and 89.9%, respectively. The sensitivity, specificity, PPV and the NPV
of the clinical characteristics of vaginal secretion for the cytological diagnosis
of candidiasis were 46.4, 86.2, 25.5 and 94%, respectively. The correlation
between the clinical evaluation of vaginal secretion and the microbiological
diagnosis of BV, candidiasis and trichomoniasis, assessed by the kappa index, was
0.47, 0.23 and 0.28, respectively.
The most common cause of abnormal vaginal secretion was BV. The clinical
evaluation of vaginal secretion presented amoderate to weak agreement with the
microbiological diagnosis, indicating the need for complementary investigation of
the clinical findings of abnormal vaginal secretion.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):229-232
DOI 10.1590/SO100-720320150005295
To compare the frequency of an ASCUS Pap Smear result in pregnant and
non-pregnant women, stratified by age group.
We analyzed the results of 1,336,180 cytopathologyc exams of Pap smears performed
between 2000 and 2009 (ten years) with the purpose of screening for cervical
carcinoma. Comparisons were made between pregnant and non-pregnant women, and the
sample was stratified into three age groups (20-24, 25-29 and 30-34 years). The
χ2 test was used and the magnitude of association was determined by
the by Odds Ratio (OR) with the 95% confidence interval (95%CI).
A Total of 447,489 samples were excluded on the basis of the criteria adopted,
for a total final sample of 37,137 pregnant women and 851,554 non-pregnant women.
An ASCUS result was detected in 1.2% of cases, with a significant difference
between pregnant and non-pregnant women in the age groups of 20-24 years (OR=0.85;
95%CI 0.75-0.97) and 25-29 years (OR=0.78; 95%CI 0.63-0.96). There was no
difference in the group between 30-34 years (OR=0.76; 95%CI 0.57-1.03).
This study suggested that non-pregnant women have a higher frequency of ASCUS,
most evident in the age group of 20 to 29 years. The collection of cervical cancer
screening should not be a compulsory part of the prenatal routine.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):229-232
DOI 10.1590/SO100-720320150005295
To compare the frequency of an ASCUS Pap Smear result in pregnant and
non-pregnant women, stratified by age group.
We analyzed the results of 1,336,180 cytopathologyc exams of Pap smears performed
between 2000 and 2009 (ten years) with the purpose of screening for cervical
carcinoma. Comparisons were made between pregnant and non-pregnant women, and the
sample was stratified into three age groups (20-24, 25-29 and 30-34 years). The
χ2 test was used and the magnitude of association was determined by
the by Odds Ratio (OR) with the 95% confidence interval (95%CI).
A Total of 447,489 samples were excluded on the basis of the criteria adopted,
for a total final sample of 37,137 pregnant women and 851,554 non-pregnant women.
An ASCUS result was detected in 1.2% of cases, with a significant difference
between pregnant and non-pregnant women in the age groups of 20-24 years (OR=0.85;
95%CI 0.75-0.97) and 25-29 years (OR=0.78; 95%CI 0.63-0.96). There was no
difference in the group between 30-34 years (OR=0.76; 95%CI 0.57-1.03).
This study suggested that non-pregnant women have a higher frequency of ASCUS,
most evident in the age group of 20 to 29 years. The collection of cervical cancer
screening should not be a compulsory part of the prenatal routine.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):233-240
DOI 10.1590/SO100-720320150005333
To assess the effect of tibolone on mammary tissue of castrated rats over 3
different periods of time.
Sixty virgin female Wistar rats were submitted to oophorectomy. Twenty-one days
after surgery, with hypoestrogenism confirmed, the experimental rats were randomly
assigned to six groups: Tibolone 1 (n=10) received tibolone 1 mg/day for 23 days,
tibolone 2 (n=10) for 59 days and tibolone 3 (n=10) for 118 days. The groups
control 1 (n=8), control 2 (n=7) and control 2 (n=10) received distilled water for
23, 59 and 118 days, respectively. After treatment, all six pairs of mammary
glands were removed and stained with hematoxylin and eosin (HE) for histological
analysis after euthanasia. The histological parameters evaluated were: epithelial
cell proliferation and secretory activity. The variables were analyzed
statistically, with the level of significance set at 0.05.
Histological changes were observed in 20/55 rats, mild epithelial hyperplasia in
7/55, moderate epithelial hyperplasia in 5/55, alveolar-nodular hyperplasia in
7/55, atypia without epithelial proliferation in 1/55, and no cases of severe
epithelial hyperplasia were found. Secretory activity was observed in 31/55 rats.
The secretory activity was significantly higher in the tibolone groups compared to
control at all the time points assessed (p=0,001). The histological changes were
did not show significance when the control and tibolone groups were compared. The
time of exposure to tibolone did not show significance when the three different
periods of evaluation were compared.
No relation between histological modification and tibolone treatment was verified
after short-, medium- and long-term treatment.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):233-240
DOI 10.1590/SO100-720320150005333
To assess the effect of tibolone on mammary tissue of castrated rats over 3
different periods of time.
Sixty virgin female Wistar rats were submitted to oophorectomy. Twenty-one days
after surgery, with hypoestrogenism confirmed, the experimental rats were randomly
assigned to six groups: Tibolone 1 (n=10) received tibolone 1 mg/day for 23 days,
tibolone 2 (n=10) for 59 days and tibolone 3 (n=10) for 118 days. The groups
control 1 (n=8), control 2 (n=7) and control 2 (n=10) received distilled water for
23, 59 and 118 days, respectively. After treatment, all six pairs of mammary
glands were removed and stained with hematoxylin and eosin (HE) for histological
analysis after euthanasia. The histological parameters evaluated were: epithelial
cell proliferation and secretory activity. The variables were analyzed
statistically, with the level of significance set at 0.05.
Histological changes were observed in 20/55 rats, mild epithelial hyperplasia in
7/55, moderate epithelial hyperplasia in 5/55, alveolar-nodular hyperplasia in
7/55, atypia without epithelial proliferation in 1/55, and no cases of severe
epithelial hyperplasia were found. Secretory activity was observed in 31/55 rats.
The secretory activity was significantly higher in the tibolone groups compared to
control at all the time points assessed (p=0,001). The histological changes were
did not show significance when the control and tibolone groups were compared. The
time of exposure to tibolone did not show significance when the three different
periods of evaluation were compared.
No relation between histological modification and tibolone treatment was verified
after short-, medium- and long-term treatment.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):241-246
DOI 10.1590/SO100-720320150005304
It was to analyse the most critical areas in Obstetrics and to suggest measures to reduce or avoid the situations most often involved in these disputes.
Obstetrics cases submitted to the Medico-legal Council since the creation of the National Institute of Legal Medicine and Forensic Sciences in 2001 until 2011 were evaluated. A comprehensive characterization, determination of absolute/relative frequencies, hypothesis of a linear trend over the years and the association between each parameter was done.
The analysis has shown no significantly linear trend. The most common reasons for disputes were perinatal asphyxia (50%), traumatic injuries of the newborn (24%), maternal sequelae (19%) and issues related to prenatal diagnosis and/or obstetric ultrasound (5.4%). Perinatal asphyxia showed no significantly linear trend (p=0.58) and was usually related to perinatal deaths or permanent neurologic sequelae in newborn children. Traumatic injuries of the newborn, mostly related to instrumented deliveries, shoulder dystocia or vaginal delivery in breech presentation, has shown a significantly increased linear trend (p<0.001), especially related to instrumented deliveries. The delay/absence of cesarean section was the clinical procedure questioned in a significantly higher number of cases of perinatal asphyxia (68.7%) and of traumatic lesions of the newborn due to instrumented deliveries (20.5%).
It is important to improve and correct theoretical/practical daily clinical performance in these highlighted areas, in order to reduce or even avoid situations that could end up in medico-legal litigations.
Summary
Rev Bras Ginecol Obstet. 2015;37(5):241-246
DOI 10.1590/SO100-720320150005304
It was to analyse the most critical areas in Obstetrics and to suggest measures to reduce or avoid the situations most often involved in these disputes.
Obstetrics cases submitted to the Medico-legal Council since the creation of the National Institute of Legal Medicine and Forensic Sciences in 2001 until 2011 were evaluated. A comprehensive characterization, determination of absolute/relative frequencies, hypothesis of a linear trend over the years and the association between each parameter was done.
The analysis has shown no significantly linear trend. The most common reasons for disputes were perinatal asphyxia (50%), traumatic injuries of the newborn (24%), maternal sequelae (19%) and issues related to prenatal diagnosis and/or obstetric ultrasound (5.4%). Perinatal asphyxia showed no significantly linear trend (p=0.58) and was usually related to perinatal deaths or permanent neurologic sequelae in newborn children. Traumatic injuries of the newborn, mostly related to instrumented deliveries, shoulder dystocia or vaginal delivery in breech presentation, has shown a significantly increased linear trend (p<0.001), especially related to instrumented deliveries. The delay/absence of cesarean section was the clinical procedure questioned in a significantly higher number of cases of perinatal asphyxia (68.7%) and of traumatic lesions of the newborn due to instrumented deliveries (20.5%).
It is important to improve and correct theoretical/practical daily clinical performance in these highlighted areas, in order to reduce or even avoid situations that could end up in medico-legal litigations.
