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, , Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2019;41(10):581-587
, , To evaluate the association between the upright and supine maternal positions for birth and the incidence of obstetric anal sphincter injuries (OASIs).
Retrospective cohort study analyzed the data of 1,728 pregnant women who vaginally delivered live single cephalic newborns with a birth weight of 2,500 g. Multiple regression analyses were used to investigate the effect of the supine and upright positions on the incidence of OASIs after adjusting for risk factors and obstetric interventions.
In total, 239 (13.8%) births occurred in upright positions, and 1,489 (86.2%) in supine positions. Grade-III lacerations occurred in 43 (2.5%) patients, and grade-IV lacerations occurred in 3 (0.2%) women. Supine positions had a significant protective effect against severe lacerations, odds ratio [95% confidence interval]: 0,47 [0.22- 0.99], adjusted for the use of forceps 4.80 [2.15-10.70], nulliparity 2.86 [1.44-5.69], and birth weight 3.30 [1.56-7.00]. Anesthesia (p<0.070), oxytocin augmentation (p<0.228), shoulder dystocia (p<0.670), and episiotomy (p<0.559) were not associated with the incidence of severe lacerations.
Upright birth positions were not associated with a lower rate of perineal tears. The interpretation of the findings regarding these positions raised doubts about perineal protection that are still unanswered.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2019;41(10):581-587
, , To evaluate the association between the upright and supine maternal positions for birth and the incidence of obstetric anal sphincter injuries (OASIs).
Retrospective cohort study analyzed the data of 1,728 pregnant women who vaginally delivered live single cephalic newborns with a birth weight of 2,500 g. Multiple regression analyses were used to investigate the effect of the supine and upright positions on the incidence of OASIs after adjusting for risk factors and obstetric interventions.
In total, 239 (13.8%) births occurred in upright positions, and 1,489 (86.2%) in supine positions. Grade-III lacerations occurred in 43 (2.5%) patients, and grade-IV lacerations occurred in 3 (0.2%) women. Supine positions had a significant protective effect against severe lacerations, odds ratio [95% confidence interval]: 0,47 [0.22- 0.99], adjusted for the use of forceps 4.80 [2.15-10.70], nulliparity 2.86 [1.44-5.69], and birth weight 3.30 [1.56-7.00]. Anesthesia (p<0.070), oxytocin augmentation (p<0.228), shoulder dystocia (p<0.670), and episiotomy (p<0.559) were not associated with the incidence of severe lacerations.
Upright birth positions were not associated with a lower rate of perineal tears. The interpretation of the findings regarding these positions raised doubts about perineal protection that are still unanswered.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2014;36(2):65-71
DOI 10.1590/S0100-72032014000200004
To analyze the relationships among gestational risk, type of delivery and
immediate maternal and neonatal repercussions.
A retrospective cohort study based on secondary data was conducted in a
university maternity hospital. A total of 1606 births were analyzed over a 9-month
period. Epidemiological, clinical, obstetric and neonatal characteristics were
compared according to the route of delivery and the gestational risk characterized
on the basis of the eligibility criteria for high clinical risk. The occurrence of
maternal and neonatal complications during hospitalization was analyzed according
to gestational risk and cesarean section delivery using univariate and
multivariate logistic analysis.
The overall rate of cesarean sections was 38.3%. High gestational risk was
present in 50.2% of births, mainly represented by hypertensive disorders and fetal
malformations. The total incidence of cesarean section, planned cesarean section
or emergency cesarean section was more frequent in pregnant women at gestational
high risk (p<0.001). Cesarean section alone did not influence maternal outcome,
but was associated with poor neonatal outcome (OR 3.4; 95%CI 2.7-4.4). Gestational
high risk was associated with poor maternal and neonatal outcome (OR 3.8; 95%CI
1.3-8.7 and OR 17.5; 95%CI 11.6-26.3, respectively). In multivariate analysis, the
ratios were maintained, although the effect of gestational risk has determined a
reduction in the OR of the type of delivery alone from 3.4 (95%CI 2.7-4.4) to 1.99
(95%CI 1.5-2.6) for adverse neonatal outcome.
Gestational risk was the main factor associated with poor maternal and neonatal
outcome. Cesarean delivery was not directly associated with poor maternal outcome
but increased the chances of unfavorable neonatal outcomes.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2014;36(2):65-71
DOI 10.1590/S0100-72032014000200004
To analyze the relationships among gestational risk, type of delivery and
immediate maternal and neonatal repercussions.
A retrospective cohort study based on secondary data was conducted in a
university maternity hospital. A total of 1606 births were analyzed over a 9-month
period. Epidemiological, clinical, obstetric and neonatal characteristics were
compared according to the route of delivery and the gestational risk characterized
on the basis of the eligibility criteria for high clinical risk. The occurrence of
maternal and neonatal complications during hospitalization was analyzed according
to gestational risk and cesarean section delivery using univariate and
multivariate logistic analysis.
The overall rate of cesarean sections was 38.3%. High gestational risk was
present in 50.2% of births, mainly represented by hypertensive disorders and fetal
malformations. The total incidence of cesarean section, planned cesarean section
or emergency cesarean section was more frequent in pregnant women at gestational
high risk (p<0.001). Cesarean section alone did not influence maternal outcome,
but was associated with poor neonatal outcome (OR 3.4; 95%CI 2.7-4.4). Gestational
high risk was associated with poor maternal and neonatal outcome (OR 3.8; 95%CI
1.3-8.7 and OR 17.5; 95%CI 11.6-26.3, respectively). In multivariate analysis, the
ratios were maintained, although the effect of gestational risk has determined a
reduction in the OR of the type of delivery alone from 3.4 (95%CI 2.7-4.4) to 1.99
(95%CI 1.5-2.6) for adverse neonatal outcome.
Gestational risk was the main factor associated with poor maternal and neonatal
outcome. Cesarean delivery was not directly associated with poor maternal outcome
but increased the chances of unfavorable neonatal outcomes.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(11):683-690
DOI 10.1590/S0100-72032005001100009
PURPOSE: to evaluate human immunodeficiency virus (HIV) vertical transmission and risk factors related to perinatal infection. METHODS: descriptive study of 170 HIV-infected pregnant women and their 188 neonates, admitted from June 1994 to September 2004 at the "Maternidade do Hospital das Clínicas da UFMG". Demographic characteristics, mother's serologic state, mode of delivery and perinatal results were analyzed. Children were followed for 18 months after birth. Data were stored and analyzed by Epi-Info, version 6.0. Confidence interval was established at 95% (p<0.05). RESULTS: HIV infection was confirmed in 84 (45.4%) patients during gestation. Viral load was below 1,000 copies/mL in 60.4% patients. Highly active antiretroviral therapy was the predominant antiretroviral regimen (65.5%). C-section rate was high: 79.5%. Prematurity rate was 18.2%. There were 184 (97.8%) live births and four (2.2%) perinatal deaths among 188 neonates. Among live neonates 97.8% received zidovudine after birth. Global mother-to-child transmission rate was 3.8%. Virus vertical transmission rates for each period were: 60%, until 1996; 28% between 1996 and 1998; 0.68%, between 1999 and 2004. Significant risk factors were not found related to perinatal HIV-infection because there was a small number of infected neonates (n=6). CONCLUSION: there was a great reduction of HIV vertical transmission during the analyzed period. Current transmission rate is zero. This confirms that by adopting adequate measures perinatal virus transmission can be prevented.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(11):683-690
DOI 10.1590/S0100-72032005001100009
PURPOSE: to evaluate human immunodeficiency virus (HIV) vertical transmission and risk factors related to perinatal infection. METHODS: descriptive study of 170 HIV-infected pregnant women and their 188 neonates, admitted from June 1994 to September 2004 at the "Maternidade do Hospital das Clínicas da UFMG". Demographic characteristics, mother's serologic state, mode of delivery and perinatal results were analyzed. Children were followed for 18 months after birth. Data were stored and analyzed by Epi-Info, version 6.0. Confidence interval was established at 95% (p<0.05). RESULTS: HIV infection was confirmed in 84 (45.4%) patients during gestation. Viral load was below 1,000 copies/mL in 60.4% patients. Highly active antiretroviral therapy was the predominant antiretroviral regimen (65.5%). C-section rate was high: 79.5%. Prematurity rate was 18.2%. There were 184 (97.8%) live births and four (2.2%) perinatal deaths among 188 neonates. Among live neonates 97.8% received zidovudine after birth. Global mother-to-child transmission rate was 3.8%. Virus vertical transmission rates for each period were: 60%, until 1996; 28% between 1996 and 1998; 0.68%, between 1999 and 2004. Significant risk factors were not found related to perinatal HIV-infection because there was a small number of infected neonates (n=6). CONCLUSION: there was a great reduction of HIV vertical transmission during the analyzed period. Current transmission rate is zero. This confirms that by adopting adequate measures perinatal virus transmission can be prevented.
