C. Wood, H. Ng, K. Hounslow, D. Benning, and H. , TIME-AN IMPORTANT VARIABLE IN NORMAL DELIVERY, BJOG: An International Journal of Obstetrics and Gynaecology, vol.80, issue.4, pp.295-300, 1973.
DOI : 10.1111/j.1471-0528.1973.tb11193.x

B. Carbonne, M. Dreyfus, and J. Schaal, Classification CNGOF du rythme cardiaque f??tal??: obst??triciens et sages-femmes au tableau??!, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.42, issue.6, pp.509-519, 2013.
DOI : 10.1016/j.jgyn.2013.07.003

G. Boog, Asphyxie p??rinatale et infirmit?? motrice d???origine c??r??brale (I- Le diagnostic), Gyn??cologie Obst??trique & Fertilit??, vol.38, issue.4
DOI : 10.1016/j.gyobfe.2010.02.009

J. Zeitlin, A. Mohangoo, and M. Delnord, The European Perinatal Health Report [En ligne

B. Carbonne and A. Nguyen, Surveillance f??tale par mesure du pH et des lactates au scalp au cours du travail, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.37, issue.1, pp.65-71, 2008.
DOI : 10.1016/j.jgyn.2007.11.012

L. Ray, C. Audibert, F. Goffinet, F. Fraser, and W. , When to stop pushing: effects of duration of second-stage expulsion efforts on maternal and neonatal outcomes in nulliparous women with epidural analgesia, Am J Obstet Gynecol, vol.201, issue.4, pp.361-362, 2009.
URL : https://hal.archives-ouvertes.fr/inserm-00460104

L. Ray, C. Winer, N. Dreyfus, M. Audibert, F. Goffinet et al., État néonatal et durée des efforts expulsifs chez les primipares à bas risque: données observationnelles dans 138 maternités françaises Journal de gynécologie obstétrique et biologie de la reproduction, pp.297-304, 2010.

D. Korb, R. Merazka, A. Théau, F. Goffinet, L. Ray et al., Cons??quences maternelles de la prolongation des efforts expulsifs, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.45, issue.2, pp.184-91, 2016.
DOI : 10.1016/j.jgyn.2015.07.007

O. Fourcade, T. Geeraerts, V. Minville, and K. Samii, Traité d'anesthésie et de réanimation (4° Éd.). Lavoisier, pp.13-14

B. Blondel and M. Kermarrec, La situation périnatale en France en 2010 : premiers résultats de l'enquête nationale périnatale, Études Résultats, issue.775, p.8, 2011.

A. Congress, . Obstetricians, . Gynecologists, . Society, and . Medicine, Safe Prevention of the Primary Cesarean Delivery. [En ligne] http://www.acog.org/Resources- And-Publications/Obstetric-Care-Consensus-Series/Safe-Prevention-of-the-Primary-Cesarean- Delivery#table3 Consulté, 2016.

S. Vause, H. Congdon, and J. Thornton, Immediate and delayed pushing in the second stage of labour for nulliparous women with epidural analgesia: a randomised controlled trial, BJOG: An International Journal of Obstetrics and Gynaecology, vol.2, issue.2, pp.186-194, 1998.
DOI : 10.1016/0959-289X(92)90008-R

K. Leveno, D. Nelson, and D. Mcintire, Second-stage Labor, Obstetric Anesthesia Digest, vol.37, issue.1, 2015.
DOI : 10.1097/01.aoa.0000512010.88591.cc

J. Hunt and S. Menticoglou, Perinatal Outcome in 1515 Cases of Prolonged Second Stage of Labour in Nulliparous Women, Journal of Obstetrics and Gynaecology Canada, vol.37, issue.6, pp.508-524, 2015.
DOI : 10.1016/S1701-2163(15)30227-9

F. Piquard, R. Hsiung, M. Mettauer, A. Schaefer, P. Haberey et al., The Validity of Fetal Heart Rate Monitoring During the Second Stage of Labor, Survey of Anesthesiology, vol.3, issue.2, pp.746-51, 1988.
DOI : 10.1097/00132586-198906000-00034

M. Bernelle, Durée des efforts expulsifs chez la primipare à bas risque. Vocat Sage-Femme, pp.30-33, 2013.
DOI : 10.1016/j.vsf.2013.01.011

M. Altman, A. Sandström, G. Petersson, T. Frisell, S. Cnattingius et al., Prolonged second stage of labor is associated with low Apgar score, European Journal of Epidemiology, vol.40, issue.2, pp.1209-1224, 2015.
DOI : 10.1055/s-0032-1314894

L. Nordström, S. Achanna, K. Naka, and S. Arulkumaran, Fetal and maternal lactate increase during active second stage of labour, Br J Obstet Gynaecol, vol.108, issue.3, pp.263-271, 2001.

M. Katz, E. Lunenfeld, I. Meizner, N. Bashan, and J. Gross, The effect of the duration of the second stage of labour on the acid-base state of the fetus, BJOG Int J Obstet Gynaecol, vol.19894, issue.15, pp.425-455

A. Bourtembourg, R. Ramanah, A. Martin, A. Pugin-vivot, R. Maillet et al., L???analyse du rythme cardiaque f??tal au cours de l???expulsion des pr??sentations podaliques. Analyse comparative dans une maternit?? de niveau III, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.44, issue.6, pp.577-86, 2015.
DOI : 10.1016/j.jgyn.2014.08.011

A. Tournemire and B. Guyard-boileau, Évaluation de la qualité de la prise en charge de la phase d'expulsion: étude cas témoins à propos de 81 cas d'asphyxie per-partum comparés à 81 enfants sains, Thèse de médecine, p.158, 2014.

N. Cheurfa, L. Butruille, D. Joonckhere, J. Carbonne, B. Deruelle et al., ??valuation de la forme simplifi??e de la classification du rythme cardiaque f??tal propos??e dans le cadre des recommandations pour la pratique clinique ????surveillance du travail????, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.45, issue.4, 2016.
DOI : 10.1016/j.jgyn.2015.04.017

O. Dupuis and A. Simon, La surveillance f??tale pendant l???expulsion, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.37, issue.1, pp.93-100, 2008.
DOI : 10.1016/j.jgyn.2007.11.015

M. Lu, E. Muthengi, F. Wakeel, M. Fridman, L. Korst et al., Prolonged second stage of labor and postpartum hemorrhage, The Journal of Maternal-Fetal & Neonatal Medicine, vol.77, issue.3, pp.227-259, 2009.
DOI : 10.1136/bmj.322.7294.1089

Y. Cheng, L. Hopkins, and A. Caughey, How long is too long: Does a prolonged second stage of labor in nulliparous women affect maternal and neonatal outcomes?, American Journal of Obstetrics and Gynecology, vol.191, issue.3, pp.933-941, 2004.
DOI : 10.1016/j.ajog.2004.05.044

N. Ratier, E. Balenbois, V. Letouzey, P. Marès, and R. De-tayrac, Mode de pouss??e ?? l???accouchement et cons??quences pelvi-p??rin??ales. Revue de la litt??rature, Progr??s en Urologie, vol.25, issue.4, pp.180-187, 2015.
DOI : 10.1016/j.purol.2015.01.003

S. Räisänen, K. Vehviläinen-julkunen, M. Gisler, and S. Heinonen, A population-based register study to determine indications for episiotomy in Finland, International Journal of Gynecology & Obstetrics, vol.200, issue.5, pp.26-30, 2011.
DOI : 10.1016/j.ajog.2008.11.022

A. Seijmonsbergen-schermers, C. Geerts, M. Prins, M. Van-diem, T. Klomp et al., The Use of Episiotomy in a Low-Risk Population in The Netherlands: A Secondary Analysis, Birth, vol.111, issue.1, pp.247-55, 2013.
DOI : 10.1016/j.ijgo.2010.04.035

D. Rouse, S. Weiner, S. Bloom, M. Varner, C. Spong et al., Second-Stage Labor Duration in Nulliparous Women, Obstetric Anesthesia Digest, vol.31, issue.1, pp.357-358, 2009.
DOI : 10.1097/01.aoa.0000393153.61123.68

S. Laughon, V. Berghella, U. Reddy, R. Sundaram, Z. Lu et al., Neonatal and Maternal Outcomes With Prolonged Second Stage of Labor, Obstetrics & Gynecology, vol.124, issue.1, pp.57-67, 2014.
DOI : 10.1097/AOG.0000000000000278

L. Ray, C. Audibert, and F. , Les pratiques médicales lors de l'accouchement: comparaison France- Canada, Med Pract Deliv Comp Fr Can Engl, vol.1, issue.1, pp.61-66, 2009.

M. Kopas, A Review of Evidence-Based Practices for Management of the Second Stage of Labor, Journal of Midwifery & Women's Health, vol.52, issue.3, pp.264-76, 2014.
DOI : 10.1016/j.jmwh.2006.12.008

S. Chang, M. Chou, K. Lin, L. Lin, Y. Lin et al., Effects of a pushing intervention on pain, fatigue and birthing experiences among Taiwanese women during the second stage of labour, Midwifery, vol.27, issue.6, pp.825-856
DOI : 10.1016/j.midw.2010.08.009

. Ciane, Enquête Accouchement -Respect des souhaits et vécu de l'accouchement [En ligne, 2016.

J. Schaal, M. Dreyfus, F. Bretelle, B. Carbonne, O. Dupuis et al., Dur??e des efforts expulsifs??: pousser n???est pas jouer. R??ponse ?? l???article de C. Le Ray et F. Audibert, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.37, issue.7, pp.715-738, 2008.
DOI : 10.1016/j.jgyn.2008.08.001

R. College, &. Obstetricians, and . Gynaecologists, Third-and Fourth-degree Perineal Tears, Management (Green-top Guideline No. 29) [En ligne]. https://www.rcog.org.uk/en/guidelines- research-services/guidelines/gtg29, 2016.