Factors related to perineal trauma in normal births in nulliparous

Inúmeros estudos têm sido realizados com a finalidade de contribuir para a prevenção do trauma perineal no parto normal. O objetivo do presente estudo foi relacionar a altura do períneo, duração do período expulsivo, variedade de posição no desprendimento cefálico, tipo de puxo, presença de circular de cordão, peso do recém-nascido e ardor na vulva ao urinar com a ocorrência de lacerações perineais. A pesquisa foi realizada em 2003, no Centro de Parto Normal do Amparo Maternal, com uma amostra de 67 parturientes sem partos vaginais anteriores. Os resultados mostraram que não houve diferença estatisticamente significante em relação às variáveis analisadas.Innumerables estudios han sido realizados con la finalidad de contribuir en la prevención del trauma perineal, en el parto normal. El objetivo del presente estudio fue relacionar la altura del perineo, duración del período expulsivo, variedad de posición en el desprendimiento cefálico, tipo de pujo, presencia de circular de cordón, peso del recién nacido y ardor en la vulva al orinar con la ocurrencia de laceraciones perineales. La investigación fue realizada en el 2003, en el Centro de Parto Normal do Amparo Maternal, con una muestra de 67 parturientas sin partos vaginales anteriores. Los resultados mostraron que no hubo diferencia estadísticamente significativa en relación a las variables analizadas.Many studies have been undertaken with the purpose of contributing towards the prevention of perineal trauma in normal birth. The objective of this study was to relate height of the perineum, duration of the second stage of labor, variation of the position of the head detaching, kind of effort, presence of the umbilical cord around the babies' neck, birth weight and vulva's ardor to urinate with the occurrence of perineal laceration. The study was undertaken in 2003 at the Normal Birth Center of the Amparo Maternal, with a sample consisting of 67 women in labor without previous vaginal births. The results demonstrated that there were no significant statistical differences between the variables verified

Use of hyaluronidase to prevent perineal trauma during spontaneous delivery: A pilot study

Our objective was to compare the frequency, degree, and location of perineal trauma during spontaneous delivery with or without perineal injections of hyaluronidase (HAase). This was a randomized, controlled pilot study, conducted in a midwifie-led hospital birth center in Sao Paulo, Brazil. Primiparous women (N = 139) were randomly assigned to an intervention group (HAase injection, n = 71) or to a control group (no injection, n = 68). Significant differences were noted between the two groups in frequency of perineal trauma (intervention, 39.4%; control, 76.5%), degree of spontaneous laceration (intervention, 0.0%; control, 82.4%), and laceration located in the posterior region of the perineum (intervention, 54.2%; control, 84.3%). When episiotomy and second-degree lacerations were considered together and women with intact perineum were excluded from the analysis, the difference between the groups was no longer significant. With the use of the HAase enzyme, the relative risk was 0.5 for perineal trauma and 0.0 for second-degree lacerations. The present findings suggest that perineal injection of HAase prevented perineal trauma. These findings provide strong rationale for a larger follow-up study

Fatores relacionados ao trauma perineal no parto normal em nulíparas Factores relacionados al trauma perineal en el parto normal en nulíparas Factors related to perineal trauma in normal births in nulliparous

Inúmeros estudos têm sido realizados com a finalidade de contribuir para a prevenção do trauma perineal no parto normal. O objetivo do presente estudo foi relacionar a altura do períneo, duração do período expulsivo, variedade de posição no desprendimento cefálico, tipo de puxo, presença de circular de cordão, peso do recém-nascido e ardor na vulva ao urinar com a ocorrência de lacerações perineais. A pesquisa foi realizada em 2003, no Centro de Parto Normal do Amparo Maternal, com uma amostra de 67 parturientes sem partos vaginais anteriores. Os resultados mostraram que não houve diferença estatisticamente significante em relação às variáveis analisadas.<br>Innumerables estudios han sido realizados con la finalidad de contribuir en la prevención del trauma perineal, en el parto normal. El objetivo del presente estudio fue relacionar la altura del perineo, duración del período expulsivo, variedad de posición en el desprendimiento cefálico, tipo de pujo, presencia de circular de cordón, peso del recién nacido y ardor en la vulva al orinar con la ocurrencia de laceraciones perineales. La investigación fue realizada en el 2003, en el Centro de Parto Normal do Amparo Maternal, con una muestra de 67 parturientas sin partos vaginales anteriores. Los resultados mostraron que no hubo diferencia estadísticamente significativa en relación a las variables analizadas.<br>Many studies have been undertaken with the purpose of contributing towards the prevention of perineal trauma in normal birth. The objective of this study was to relate height of the perineum, duration of the second stage of labor, variation of the position of the head detaching, kind of effort, presence of the umbilical cord around the babies' neck, birth weight and vulva's ardor to urinate with the occurrence of perineal laceration. The study was undertaken in 2003 at the Normal Birth Center of the Amparo Maternal, with a sample consisting of 67 women in labor without previous vaginal births. The results demonstrated that there were no significant statistical differences between the variables verified