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The Association Between Decreasing Labor Analgesia Epidural Infusion and Forceps Delivery
A Retrospective Case-controlled Study of the Association Between Request to Discontinue Second Stage Labor Epidural Analgesia and Risk of Instrumental Vaginal Delivery
The objective of this study will be to compare epidural infusion management, specifically looking at infusion rate changes, in patients who receive forceps deliveries versus normal spontaneous vaginal deliveries. We will match patients based on time and date of delivery, as well as parity, in order to eliminate these variables as potential con-founders.
We hypothesize patients who require a decrease in their basal labor analgesia epidural infusion rate will have an increased incidence of forceps delivery.
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
The obstetrical anesthesia database will be queried for all forceps deliveries between the dates of January 2004-October 2005. To minimize the influence of different anesthetic and obstetric care providers, the control group consisted of parturients who has spontaneous vaginal deliveries (SVD) in the same 24 hour period who were case-matched for gravidity and parity. Parturients with twin deliveries and fetal demise were not selected for either group.
The database will be queried for the following: maternal age, parity, gestational age, type of analgesia, changes in epidural infusion rate and/or concentration, and supplemental bolus doses of local anesthesia. The data will be stripped of identification by the database manager and entered into a secured computer which is password protected and maintained in the Department of Anesthesiology. The primary endpoint is to evaluate if decreasing the epidural infusion rate was associated with a forceps delivery.
Tipo de estudo
Inscrição (Real)
Contactos e Locais
Locais de estudo
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Illinois
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Chicago, Illinois, Estados Unidos, 60611
- Northwestern University
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Método de amostragem
População do estudo
Descrição
Inclusion Criteria:
- Singletons
- Viable fetal vaginal deliveries between January 2004-October 2005
Exclusion Criteria:
- Outside specified time frame
- Multiparity
- Fetal demise
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
Coortes e Intervenções
Grupo / Coorte |
Intervenção / Tratamento |
|---|---|
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Instrumental Vaginal Delivery (IVD)
Instrumental vaginal delivery (IVD) is attempted to prevent fetal hypoxia if the second stage of labor is prolonged.
It includes forceps and vacuum extractions.
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A retrospective study utilizing the Obstetric Anesthesiology Database to identify parturients who received neuraxial labor analgesia initiated with a combined spinal epidural (CSE) technique and maintained with a continuous epidural infusion with patient controlled epidural analgesia boluses
Outros nomes:
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Spontaneous Vaginal Delivery (SVD)
The control group consisted of parturients who had a spontaneous vaginal delivery (SVD)in the same 24 hour period who were case-matched for gravidity and parity.
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A retrospective study utilizing the Obstetric Anesthesiology Database to identify parturients who received neuraxial labor analgesia initiated with a combined spinal epidural (CSE) technique and maintained with a continuous epidural infusion with patient controlled epidural analgesia boluses
Outros nomes:
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Number of Parturients With a Decrease in the Infusion of Epidural Analgesia During Second Stage of Labor
Prazo: Second stage of labor up to 3 hours
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At the request of the obstetric provider, second stage analgesia density was decreased by decreasing the basal infusion rate if there was dissatisfaction with the progress of labor or a perceived inability to push.
The basal infusion was never totally discontinued.
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Second stage of labor up to 3 hours
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Number of Participants With Breakthrough Pain in the First Stage of Labor
Prazo: Supplemental analgesia in first stage of labor (<24 hours)
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Pain not responding to epidural analgesia in the first stage of labor was treated with bolus dose of bupivacaine 1.25 mg/mL or lidocaine 10 mg/mL, 10 to 15 mL.
If pain relief was obtained the infusion concentration was increased.
If the patient had no pain relief following the bolus injection, the epidural catheter was replaced.
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Supplemental analgesia in first stage of labor (<24 hours)
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Duration of Labor Analgesia
Prazo: Time form initiation of labor analgesia to delivery (up to 24 hours)
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Time in minutes from initiation of labor analgesia until delivery of the infant
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Time form initiation of labor analgesia to delivery (up to 24 hours)
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Cynthia A Wong, M.D., Northwestern University
Publicações e links úteis
Publicações Gerais
- Wong CA, Scavone BM, Peaceman AM, McCarthy RJ, Sullivan JT, Diaz NT, Yaghmour E, Marcus RJ, Sherwani SS, Sproviero MT, Yilmaz M, Patel R, Robles C, Grouper S. The risk of cesarean delivery with neuraxial analgesia given early versus late in labor. N Engl J Med. 2005 Feb 17;352(7):655-65. doi: 10.1056/NEJMoa042573.
- Comparative Obstetric Mobile Epidural Trial (COMET) Study Group UK. Effect of low-dose mobile versus traditional epidural techniques on mode of delivery: a randomised controlled trial. Lancet. 2001 Jul 7;358(9275):19-23. doi: 10.1016/S0140-6736(00)05251-X.
- Murphy DJ. Failure to progress in the second stage of labour. Curr Opin Obstet Gynecol. 2001 Dec;13(6):557-61. doi: 10.1097/00001703-200112000-00002.
- Panni MK, Segal S. Local anesthetic requirements are greater in dystocia than in normal labor. Anesthesiology. 2003 Apr;98(4):957-63. doi: 10.1097/00000542-200304000-00024.
- Torvaldsen S, Roberts CL, Bell JC, Raynes-Greenow CH. Discontinuation of epidural analgesia late in labour for reducing the adverse delivery outcomes associated with epidural analgesia. Cochrane Database Syst Rev. 2004 Oct 18;2004(4):CD004457. doi: 10.1002/14651858.CD004457.pub2.
- Hess PE, Pratt SD, Soni AK, Sarna MC, Oriol NE. An association between severe labor pain and cesarean delivery. Anesth Analg. 2000 Apr;90(4):881-6. doi: 10.1097/00000539-200004000-00020.
- Cohen SE, Yeh JY, Riley ET, Vogel TM. Walking with labor epidural analgesia: the impact of bupivacaine concentration and a lidocaine-epinephrine test dose. Anesthesiology. 2000 Feb;92(2):387-92. doi: 10.1097/00000542-200002000-00019.
- Yancey MK, Zhang J, Schweitzer DL, Schwarz J, Klebanoff MA. Epidural analgesia and fetal head malposition at vaginal delivery. Obstet Gynecol. 2001 Apr;97(4):608-12. doi: 10.1016/s0029-7844(00)01230-8.
- 9. Wong CA, Scavone BM, Sullivan JT, Ebarvia MJ, McCarthy RJ. The risk of cesarean delivery with early neuraxial analgesia in nulliparous induction of labor. http://www.asa-abstracts.com 2007:A1204.
- Ben-Haroush A, Melamed N, Kaplan B, Yogev Y. Predictors of failed operative vaginal delivery: a single-center experience. Am J Obstet Gynecol. 2007 Sep;197(3):308.e1-5. doi: 10.1016/j.ajog.2007.06.051.
- Ziadeh S, Yahaya A. Pregnancy outcome at age 40 and older. Arch Gynecol Obstet. 2001 Mar;265(1):30-3. doi: 10.1007/s004040000122.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Dor
- Manifestações Neurológicas
- Dor de parto
- Efeitos Fisiológicos das Drogas
- Depressores do Sistema Nervoso Central
- Agentes do Sistema Nervoso Periférico
- Analgésicos
- Agentes do Sistema Sensorial
- Anestésicos Intravenosos
- Anestésicos Gerais
- Anestésicos
- Analgésicos, Opioides
- Narcóticos
- Adjuvantes, Anestesia
- Anestésicos Locais
- Fentanil
- Bupivacaina
Outros números de identificação do estudo
- 0524-028
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