[1] Obstetriciansgynecologists A C O. Obstetric care consensus no. 1: safe prevention of the primary cesarean delivery[J]. Obstet Gynecol, 2014, 123(3): 693-711.
[2] Liu S, Liston R M, Joseph K S, et al. Maternal mortality and severe morbidity associated with low-risk planned cesarean delivery versus planned vaginal delivery at term[J]. CMAJ, 2007,176(4):455-460.
[3] Pilar B A, Ye J, Anne-Beth M, et al. The increasing trend in caesarean section rates: global, regional and national estimates: 1990-2014[J]. PLoS One, 2016,11(2):e0148343.
[4] Li H, Hellerstein S, Zhou Y, et al. Trends in cesarean delivery rates in china, 2008-2018[J]. JAMA, 2020, 323(1):89-91.
[5] Kupari M, Talola N, Luukkaala T, et al. Does an increased cesarean section rate improve neonatal outcome in term pregnancies?[J]. Arch Gynecol Obstet, 2016, 294(1): 41-46.
[6] Yang X J, Sun S S. Comparison of maternal and fetal complications in elective and emergency cesarean section: a systematic review and meta-analysis[J]. Arch Gynecol Obstet, 2017, 296(3): 503-512.
[7] Caughey A B, Cahill A G, Guise J, et al. Safe prevention of the primary cesarean deliver[J]. Am J Obstet Gynecol,2014, 210(3):179-193.
[8] 时春艳, 李博雅. 新产程标准及处理的专家共识(2014)[J]. 中华妇产科杂志, 2014, 49(7): 486-486.
[9] 郑媛媛, 邹丽颖, 范 玲. 新产程标准实施后产程中剖宫产指征的变化及母儿预后分析[J]. 中华妇产科杂志, 2016, 51(4): 245-249.
[10] Wilson-Leedy J G, DiSilvestro A J, Repke J T, et al. Reduction in the cesarean delivery rate after obstetric care consensus guideline implementation[J]. Obstet Gynecol, 2016, 128(1):145-152.
[11] Rosenbloom J I , Stout M J , Tuuli M G , et al. New labor management guidelines and changes in cesarean delivery patterns[J]. Obstetric Anesthesia Digest, 2018, 38(3):145-146.
[12] Norman S M, Tuuli M G, Odibo A O, et al. The effects of obesity on the first stage of labor[J]. Obstetric Anesthesia Digest, 2013, 33(3): 157-158.
[13] ngeby K, Wilde L B, Hildingsson I, et al. Prevalence of prolonged latent phase and labor outcomes: review of birth records in a swedish population[J]. J Midwifery Womens Health, 2018, 63(1): 33-44.
[14] Grobman W A, Bailit J, Lai Y, et al. Defining failed induction of labor[J]. Am J Obstet Gynecol, 2018, 218(1): 122.e1-122.e8.
[15] Battarbee A N, Sandoval G, Grobman W A, et al. Maternal and neonatal outcomes associated with amniotomy among nulliparous women undergoing labor induction at term [J]. Am J Perinatol, 2020, 10.1055/s-0040-1709464.
[16] Ghafarzadeh M, Moeininasab S, Namdari M. Effect of early amniotomy on dystocia risk and cesarean delivery in nulliparous women: a randomized clinical trial[J]. Arch Gynecol Obstet, 2015, 292(2): 321-325.
[17] Kachol R, Prisana P. The effect of early versus late amniotomy on the course of labor [J]. J Med Assoc Thai, 2017,100(2): 125-132.
[18] Boujenah J, Renassia S, Djafer R, et al. Effects of a policy for reasonable use of oxytocin during spontaneous labor at term[J]. Gynecol Obstet Fertil Senol, 2020, 48(9): 657-664.
[19] Rossen J, Stborg T B, Lindtj Rn E, et al. Judicious use of oxytocin augmentation for the management of prolonged labor [J]. Acta Obstet Gynecol Scand, 2016, 95(3):355-361.
[20] Bakker P C A M, Kurver P H J, Kuik D J, et al. Elevated uterine activity increases the risk of fetal acidosis at birth[J]. Am J Obstet Gynecol, 2007, 196(4): 311-313.
[21] Heuser C C, Knight S, Esplin M S, et al. Tachysystole in term labor: incidence, risk factors, outcomes, and effect on fetal heart tracings[J]. Am J Obstet Gynecol, 2013, 209(1): 31-32.
[22] Clark S L, Simpson K R, Knox G E, et al. Oxytocin: new perspectives on an old drug [J]. Am J Obstet Gynecol, 2009, 200(1): 31-35.
[23] Andreaa K A, Danielb P, Stephanieb V O, et al. Temporal trends of postpartum haemorrhage in Switzerland: a 22-year retrospective population-based cohort study [J]. Schweiz Med Wschr, 2017,147: w14551.
[24] Belghiti J, Kayem G, Dupont C, et al. Oxytocin during labour and risk of severe postpartum haemorrhage: a population-based, cohort-nested case-control study [J]. BMJ Open, 2011,1(2):e514-e514.
[25] Phaneuf S, Rodriguez Linares B, Tambyraja R, et al. Loss of myometrial oxytocin receptors during oxytocin-induced and oxytocin-augmented labour [J].J Reprod Fertil, 2000, 120(1): 91-97.
[26] Clark S L, Belfort M A, Byrum S L, et al. Improved outcomes, fewer cesarean deliveries, and reduced litigation: results of a new paradigm in patient safety [J]. Am J Obstet Gynecol, 2008, 199(2): 105.e1-e7.
[27] 中华医学会围产医学分会. 电子胎心监护应用专家共识 [J]. 中华围产医学杂志, 2015,7:486-490.
[28] Roy K K, Baruah J, Kumar S, et al. Cesarean section for suspected fetal distress, continuous fetal heart monitoring and decision to delivery time [J]. Indian J Pediatr, 2008, 75(12): 1249-1252.
[29] Macones G A, Hankins G D, Spong C Y, et al. The 2008 National Institute of Child Health and Human Development workshop report on electronic fetal monitoring: update on definitions, interpretation, and research guidelines [J]. Obstetric Anesthesia Digest, 2009, 37(5): 510-515.
[30] Whitfield J M, Charsha D S, Chiruvolu A. Prevention of meconium aspiration syndrome: an update and the baylor experience[J]. Bayl Univ Med Cent, 2009, 22(2): 128-131.
[31] David A N, Njokanma O F, Iroha E. Incidence of and factors associated with meconium staining of the amniotic fluid in a nigerian university teaching hospital [J]. J Obstet Gynaecol, 2006, 26(6): 518-520.
[32] Cummings J R, Pedowitz R A. Effect of meconium-stained amniotic fluid on perinatal complications in low-risk pregnancies at term [J]. Am J Perinatol, 2015, 33(4):378-384.
[33] Tairy D, Gluck O, Tal O, et al. Amniotic fluid transitioning from clear to meconium stained during labor-prevalence and association with adverse maternal and neonatal outcomes [J]. J Perinatol, 2019, 39(10): 1349-1355.
[34] Rodríguez Fernández V, López R Y C C, Ortiz E M, et al. Intrapartum and perinatal results associated with different degrees of staining of meconium stained amniotic fluid [J]. Eur J Obstet Gynecol Reprod Biol, 2018, 224:192-197.
[35] Kamakshi G, Anju G, Tania S, et al. Epidural analgesia during labor: attitudes among expectant mothers and their care providers [J]. Anesth Essays Res,2018,12(2):501-505.
[36] Wang F Z, Shen X F, Guo X R, et al. Epidural analgesia in the latent phase of labor and the risk of cesarean delivery [J]. Anesthesiology, 2009,111(4):871-880.
[37] Li C, Fan X, Xu S, et al. Concerned topics of epidural labor analgesia: labor elongation and maternal pyrexia: a systematic review [J]. Chin Med J, 2020, 133(5): 597-605.
[38] Arendt K W,Segal B S, The association between epidural labor analgesia and maternal fever [J]. Clin Perinatol, 2013, 40(3): 385-398.
[39] Muto H, Ishii K, Nakano T, et al. Rate of intrapartum cesarean section and related factors in older nulliparous women at term [J]. J Obstet Gynaecol Res, 2018, 44(2): 217-222.
[40] Kawakita T, Reddy U M, Landy H J, et al. Indications for primary cesarean delivery relative to body mass index [J]. Am J Obstet Gynecol,2016, 215(4): 515.
[41] David M, Ebert A D. Midpregnancy cervical length in nulliparous women and its association with postterm delivery and intrapartum cesarean delivery [J]. Amer J Perinatol, 2015, 33(1): 40-46.
[42] Zhuang W,Lv J,Liang Q,et al.Adverse effects of gestational diabetes-related risk factors on pregnancy attcomes and intervention measures[J].Exp Ther Med,2020,20(4):3361-3367.
[43] Christina A, Penfield, Michael P, et al. Disparate rates of cesarean delivery in term nulliparous women with hypertensive disorders of pregnancy [J]. Am J Perinatol,2019, 36(10):997-1001.