When to clamp the umbilical cord?

World Health Organization. Care of the umbilical cord: a review of the evidence. 1998 - WHO/RHTMSM/98.4.

McCausland AM, Holmes F, Schumann WR. Management of cord and placental blood and its effect upon newborn. Part II. West J Surg 1950;58:591-608.

Mercer JS, Nelson CC, Skovgaard RL. Umbilical cord clamping: beliefs and practices of American nurse-midwives. J Midwifery Womens Health 2000;45:58-66.

Mercer JS. Current best evidence: a review of the literature on umbilical cord clamping. J Midwifery Womens Health 2001;46:402-14.

Cunningham FG. Conducta en el parto normal. En: Cunningham FG, MacDonald PC, Gant NF, Leveno KJ, Gilstrap LC (eds). Obstetricia de Williams. Cuarta edición. Barcelona: Masson SA; 1996, p. 359-80.

Schwarcz RL. El parto normal. En: Schwartcz RL, Duverges CA, Díaz AG, Fescina RH (eds). Obstetricia. Cuarta edición. Buenos Aires: Editorial El Ateneo; 1986. p. 310-405.

Júbiz AH. Atención del parto normal. En: Botero JU, Júbiz AH, Henao G (eds). Obstetricia y Ginecología. Texto Integrado. Medellín: Universidad de Antioquia; 1999. p. 114-44.

Taylor ES. Asistencia del parto. En: Taylor ES (ed). Obstetricia de Beck. México DF: Interamericana; 1973. p. 186-96.

American Academy of Pediatrics, American College of Obstetricians and Gynecologists, March of Dimes Birth Defects Foundation. Guidelines for perinatal care. Fourth edition. 1997.

Society of Obstetricians and Gynaecologists of Canada. Attendance at labour and delivery guidelines for obstetrical care. SOGC Policy Statement. 2000, N° 89.

Waugh J, Johnson A, Farkas A. Analysis of cord blood gas at delivery: questionnaire study of practice in the United Kingdom. BMJ 2001;323:727.

Sociedad Colombiana de Obstetricia y Ginecología. http://www.fecolsog.org

Sociedad Española de Ginecología y Obstetricia. http://www.sego.es/index.php

Morley GM. Cord closure: can hasty clamping injure the newborn? OBG Management 1998;7:29-36.

Yao AC, Moinian M, Lind J. Distribution of blood between infant and placenta after birth. Lancet 1969;7626:871-3.

Maternal Health and Safe Programme. Care in normal birth: a practical guide. Report of the technical working group. Geneva. Maternal and Newborn Health/Safe Motherhood Unit, Family and Reproductive Health, World Health Organization. 1997 - WHO/FRH/MSM/96.24.

Yao AC, Lind J. Effect of gravity on placental transfusion. Lancet 1969;2:505-8.

Serwer GA. Postnatal circulatory adjustments. In Polin RA, Fox WW (eds). Fetal and Neonatal Physiology. Philadelphia: W.B. Saunders; 1992. p. 710-21.

Mercer JS, Skovgaard RL. Neonatal transitional physiology: a new paradigm. J Perinat Neonatal Nurs 2002;15:56-75.

Jaykka S. Capillary erection and lung expansion; an experimental study of the effect of liquid pressure applied to the capilary network of excised fetal lungs. Acta Paediatr 1957;Suppl 112:1-91.

Jaykaa S. Capillary erection and the structural appearance of fetal and neonatal lungs. Acta Paediatr 1958;47:484-500.

Avery ME, Frank R, Gribetz I. The inflationary force produced by pulmonary vascular distention in excised lungs; the possible relation of this force to that needed ton inflate the lungs at birth. J Clin Invest 1959;38:456-62.

Philip AG, Saigal S. When should we clamp the umbilical cord? Neoreviews 2004;5:142-54.

Saigal S, U sher R. Symptomatic neonatal plethora. Biol Neonate 1977;32:62-72.

Bada HS, Korones SB, Pourcyrous M, Wong SP, Wilson WM 3rd, Kolni HW, et al. Asymptomatic syndrome of polycythemic hyperviscosity: effect of partial plasma exchange transfusion. J Pediatr 1992;120:579-85.

Saigal S, O´Neill A, Surainder Y, Chua LB, Usher R. Placental transfusion and hyperbilirrubinemia in the premature. Pediatrics 1972;49:406-19.

Grajeda R, Perez-Escamilla R, Dewey KG. Delayed clamping of the umbilical cord improves hematologic status of Guatemalan infants at 2 months of age. Am Clin Nutr 1997;65:425-31.

Geethanath RM, Ramji S, Thirupuram S, Rao YN. Effect of timing of cord clamping on the iron status of infants at 3 months. Indian Pediatr 1997;34:103-6.

Rabe H, Wacker A, Hülskamp G, Hornig-Franz I, Schulze-Everding A, Harms E, et al. A randomized controlled trial of delayed cord clamping in very low birth weight preterm infants. Eur J Pediatr 2000;159:775-7.

McDonnell M, Henderson-Smart DJ. Delayed umbilical cord clamping in preterm infants: a feasibility study. J Paediatr Child Health 1997;33:308-10.

Ibrahim HM, Krouskop RW, Lewis DF, Dhanireddy R. Placental transfusion: umbilical cord clamping and preterm infants. J Perinatol 2000;20:351-4.

Pisacane A. Neonatal prevention of iron deficiency. BMJ 1996;312:136-7.

Nelle M, Fischer S, Conze S, Bedgen B, Grischke EM, Linderkamp O. Effects of later cord clamping on circulation in prematures (VLBWI) [abstract]. Pediatr Res 1998;44:454.

Nelle M, Zilow EP, Bastert G, Linderkamp O. Effect of Leboyer childbirth on cardiac outpout, cerebral and gastrointestinal blood flow velocities in full term neonates. Am J Perinatol 1995;12:212-6.

Wardrop CA, Holland BM. The roles and vital importance of placental blood to the newborn infant. J Perinat Med 1995;23:139-43.

Rabe H, Wacker A, Hulskamp G, et al. Late cord clamping benefits extrauterine adaptation [abstract]. Pediatr Res 1998;44:454.

Pietra GG, D'Amodio MD, Leventhal MM, Oh W, Braudo JL. Electron microscopy of cutaneous capillaries of newborn infants: effects of placental transfusion. Pediatrics 1968;42:678-83.

Oh W, Lind J. Body temperature of the newborn infant in relation to placental transfusion. Acta Paediatr Scand 1967;Suppl 172:135+.

Oh W, Oh MA, Lind J. Renal function and blood volume in newborn infant related to placental transfusion. Acta Paediatr Scand 1966;55:197-210.

Perez-Escamilla R, Pollit E, Lonnerrdal B, Dewey KG. Infant feeding policies in maternity wards and their effect on breast-feeding success: an overview. Am J Public Health 1994;84:89-97.

Oxford Midwives Research Group. A study of the relationship between the delivery to cord clamping interval and the time of cord separation. Midwifery 1991;7:167-76.

Rajnik M, Salkowski C, Li Y, et al. Early cytokine expression induced by hemorrhagic shock in a non-rescuscitated rat model. Pediatr Res 2001;49:44A.

Prendiville WJ, Elbourne D, McDonald S. Active versus expectant management in the third stage of labour (Cochrane Review). In: The Cochrane Library, Issue 4, 2002. Oxford: Update Software.

Latin American Center of Perinatology and Human Development. Clamping modality of the umbilical cord during active management of third stage of labor: consequences to the newborn and the mother. http://www.paho.org/English/CLAP/invpro16.htm

Erkkola R. Kero P, Kanto J, Korvenranta H, Nanto V, Peltonen T. Delayed cord clamping in cesarean section with general anesthesia. Am J Perinatol 1984;2:165-9.

Ministerio de Salud de Colombia. Norma técnica para la atención del parto. 2000.

Dunn PM. Dr Erasmus Darwin (1731-1802) of Lichfield and placental respiration. Arch Dis Child Fetal Neonatal Ed 2003;88:346-48.