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1.
Rev. bras. ginecol. obstet ; 41(10): 581-587, Oct. 2019. tab, graf
Article in English | LILACS | ID: biblio-1042321

ABSTRACT

Abstract Objective To evaluate the association between the upright and supine maternal positions for birth and the incidence of obstetric anal sphincter injuries (OASIs). Methods 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. Results 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. Conclusion 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.


Resumo Objetivo Avaliar a associação entre as posições maternas verticais e supinas ao nascimento e a taxa de incidência de lesões obstétricas do esfíncter anal (LOEAs). Métodos Estudo coorte retrospectivo que analisou os dados de 1.728 gestantes que tiveram parto vaginal cefálico simples com peso ao nascer de 2.500 g. Análises de regressão múltipla foram usadas para investigar o efeito de posições supinas ou verticais sobre a taxa de incidência de LOEAs após o ajuste para fatores de risco e intervenções obstétricas. Resultados No total, 239 (13,8%) nascimentos ocorreram nas posições verticais, e 1,489 (86,2%), nas posições supinas. Lacerações graves de grau III ocorreram em 43 (2,5%) pacientes, e de grau IV, em 3 (0,2%) mulheres. As posições supinas tiveram um efeito protetor significativo contra lacerações graves, razão de probabilidades [Intervalo de Confiança de 95%]: 0,47 [0.22-0.99], ajustado para o uso de Fórceps 4.80 [2.15-10.70], nuliparidade 2.86 [1.44-5.69], e peso ao nascer 3.30 [1.56-7.00]. Anestesia (p<0.070), aumento de ocitocina (p<0.228), distocia de ombro (p<0.670), e episiotomia (p<0.559) não estiveram associados à incidência de laceração grave. Conclusão As posições de parto verticais não estiveram associadas a uma menor taxa de ruptura perineal. A interpretação dos achados referentes a essas posições levantou dúvidas sobre a proteção perineal que ainda aguardam respostas.


Subject(s)
Humans , Female , Pregnancy , Perineum/injuries , Lacerations/prevention & control , Lacerations/epidemiology , Delivery, Obstetric/adverse effects , Delivery, Obstetric/methods , Delivery, Obstetric/statistics & numerical data , Posture/physiology , Retrospective Studies , Risk Factors , Episiotomy/statistics & numerical data
2.
Chinese Journal of Practical Gynecology and Obstetrics ; (12): 972-974, 2019.
Article in Chinese | WPRIM | ID: wpr-816276

ABSTRACT

In the clinical work of our country,more and more attention is paid to the people-centered concept. It is more focuses on avoiding excessive intervention and strengthening management of labor course. Interventions that should be limited during childbirth for low-risk spontaneous labour.The limited interventions are including the application of the new parturition process criteria,the use of early amniotomy with early oxytocin augmentation for prevention of delay in labour is not recommended,routine cardiotocography is not recommended,encouraging the adoption of a birth position of the individual woman's choicey,routine episiotomy is not recommend,et al.Itis necessary to manage women and their fetus depending on patients' s situation,and to ensure the safety of mother and child.As well as to reduce excessive intervention,thereby reducing caesarean section rate,ensure that the mother has a good delivery experience,and improve the outcomes of mother and child.

3.
Rev. bras. ginecol. obstet ; 40(7): 379-383, July 2018. tab
Article in English | LILACS | ID: biblio-959016

ABSTRACT

Abstract Objective Perineal trauma is a negative outcome during labor, and until now it is unclear if the maternal position during the second stage of labormay influence the risk of acquiring severe perineal trauma. We have aimed to determine the prevalence of perineal trauma and its risk factors in a low-risk maternity with a high incidence of upright position during the second stage of labor. Methods A retrospective cohort study of 264 singleton pregnancies during labor was performed at a low-risk pregnancymaternity during a 6-month period. Perineal trauma was classified according to the Royal College of Obstetricians and Gynecologists (RCOG), and perineal integrity was divided into three categories: no tears; first/ second-degree tears + episiotomy; and third and fourth-degree tears. A multinomial analysis was performed to search for associated factors of perineal trauma. Results From a total of 264 women, there were 2 cases (0.75%) of severe perineal trauma, which occurred in nulliparous women younger than 25 years old. Approximately 46% (121) of the women had no tears, and 7.95% (21) performed mediolateral episiotomies. Perineal trauma was not associated with maternal position (p = 0.285), health professional (obstetricians or midwives; p = 0.231), newborns with 4 kilos or more (p = 0.672), and labor analgesia (p = 0.319). The multinomial analysis showed that white and nulliparous presented, respectively, 3.90 and 2.90 times more risk of presenting perineal tears. Conclusion The incidence of severe perineal trauma was low. The prevalence of upright position during the second stage of labor was 42%. White and nulliparous women were more prone to develop perineal tears.


Resumo Objetivo O trauma perineal é um desfecho negativo durante o parto, e é incerto, até omomento, se a posiçãomaternal durante o período expulsivo pode influenciar o risco de evoluir com trauma perineal severo. Nós objetivamos determinar a prevalência de trauma perineal e seus fatores de risco em uma maternidade de baixo risco com alta prevalência de posição vertical durante o período expulsivo. Métodos Um estudo de coorte retrospectivo de 264 gestações únicas durante o trabalho de parto foi realizado durante 6 meses consecutivos. O trauma perineal foi classificado de acordo com o Royal College of Obstetricianns and Gynecologists (RCOG). A integridade perineal foi dividida em três categorias: períneo íntegro; trauma perineal leve (primeiro e segundo graus + episiotomia); e trauma perineal severo (terceiro e quarto graus). Uma análise multinomial foi realizada para buscar variáveis associadas ao trauma perineal. Resultados De um total de 264 mulheres, houve 2 casos (0,75%)de trauma perineal severo m nulíparas com menos de 25 anos. Aproximadamente 46% (121) das mulheres não tiveram trauma perineal e 7,95% (21) realizaram episiotomias mediolaterais. Não houve correlação do trauma perineal com a posição de parto (p = 0,285), tipo de profissional que realizou o parto (p = 0,231), recém-nascidos com 4.000 gramas ou mais (p = 0,672), e presença de analgesia de parto (p = 0,319). Uma análise multinomial evidenciou que mulheres brancas e nulíparas apresentaram, respectivamente, um risco 3,90 e 2,90 vezes maior de apresentar trauma perineal. Conclusão A incidência de trauma perineal severo foi baixa. A prevalência de parto vertical durante o período expulsivo foi de 42%. Mulheres brancas e nulíparas foram mais suscetíveis a apresentar trauma perineal.


Subject(s)
Humans , Female , Pregnancy , Adolescent , Adult , Young Adult , Perineum/injuries , Labor Stage, Second , Lacerations/etiology , Patient Positioning/methods , Patient Positioning/statistics & numerical data , Obstetric Labor Complications/etiology , Prevalence , Retrospective Studies , Risk Factors , Cohort Studies , Risk Assessment , Lacerations/epidemiology , Obstetric Labor Complications/epidemiology
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