Obstetric Evaluation of Fetal Acid-Base Balance

References

• American College of Obstetricians and Gynecologists. Umbilical artery blood acid-base analysis. Tech Bull 1995; 216.
   Google Scholar
• Ross MG, Ervin MG Bisonette J. Placental and fetal physiology. In: Gabbe SG, Niebyl JR, Simpson JL, eds. Obstetrics: normal and problem pregnancies, 3rd ed. pp. 65–90. New York: Churchill Livingstone, 1996.
   Google Scholar
• Shapiro BA, Peruzzi WT Templin R. Clinical application of blood gases, 5th ed. St. Louis: Mosby-Year Book, 1994.
   Google Scholar
• Gilstrap, LC, Cunningham FG. Umbilical cord blood acid-base analysis. Supplement to Williams obstetrics, 19th ed. Norwalk, CT: Appleton & Lange, 1994.
   Google Scholar
• Goldaber KG, Gilstrap LC III, Leveno KJ, et al. Pathologic fetal acidemia. Obstet Gynecol 1991; 78: 1103–7.
   PubMed Web of Science ®Google Scholar
• Soothill PW, Nicolaides HN, Rodeck CH, et al. Effect of gestational age on fetal and intervillous blood gas and acid-base values in human pregnancy. Fetal Therapy 1986; 1: 168–75.
   PubMedGoogle Scholar
• Yeomans Er, Hauth JC, Gilstrap LC III, et al. Umbilical cord pH, PCO2, and bicarbonate following uncomplicated term vaginal deliveries. Am J Obstet Gynecol 1985; 151: 798–800.
   PubMed Web of Science ®Google Scholar
• Riley RJ, Johnson JWC. Collecting and analyzing cord blood gases. Clin Obstet Gynecol 1993; 36: 13–23.
   PubMedGoogle Scholar
• Helwig JT, Parer JT, Kilpatrick SJ, et al. Umbilical cord blood acid-base state: what is normal? Am J Obstet Gynecol 1996; 174: 1807–14.
   PubMed Web of Science ®Google Scholar
• Ramin SM, Gilstrap LC III, Leveno KJ, et al. Umbilical artery acid-base status in the preterm infant. Obstet Gynecol 1989; 74: 256–8.
   PubMed Web of Science ®Google Scholar
• Catlin EA, Carpenter MQ, Brann BS, et al. The Apgar score revisited: influence of gestational age. J Pediatr 1986; 109: 865–8.
   PubMed Web of Science ®Google Scholar
• Dickinson JE, Eriksen NL, Meyer BA, et al. The effect of preterm birth on umbilical cord blood gases. Obstet Gynecol 1992; 79: 575–8.
   Google Scholar
• Thorp JA, Sampson JE, Parisi VM, et al. Routine umbilical cord blood gas determinations? Am J Obstet Gynecol 1989; 161: 600–5.
   PubMed Web of Science ®Google Scholar
• Winkler CL, Hauth JC, Tucker JM, et al. Neonatal complications at term as related to the degree of umbilical artery acidemia. Am J Obstet Gynecol 1991; 154: 637–41.
   Google Scholar
• Gilstrap LC, Leveno KJ, Burris J, et al. Diagnosis of asphyxia on the basis of fetal pH, Apgar score and newborn cerebral dysfunction. Am J Obstet Gynecol 1989; 161: 825–30.
   PubMed Web of Science ®Google Scholar
• Goodwin TM, Belai I, Hernandez P, et al. Asphyxial complications in the term newborn with severe umbilical acidemia. Am J Obstet Gynecol 1992; 167: 1506–12.
   PubMed Web of Science ®Google Scholar
• Parer JT. Handbook of fetal heart rate monitoring, 2nd ed. Philadelphia: W.B. Saunders, 1997.
   Google Scholar
• Fee SC, Malee K, Deddish R, et al. Severe acidosis and subsequent neurologic status. Am J Obstet Gynecol 1990; 162: 802–6.
   PubMedGoogle Scholar
• Parer JT. The effect of acute maternal hypoxia on fetal oxygenation and the umbilical circulation in the sheep. Eur J Obstet Gynecol Reprod Biol 1980; 10: 125–36.
   PubMed Web of Science ®Google Scholar
• Monga M, Creasy RK. Cardiovascular and renal adaptation to pregnancy. In: Creasy RK, Resnik R, eds. Maternal-fetal medicine: principles and practice, 3rd ed. pp. 758–67. Philadelphia: W.B. Saunders Co., 1994.
   Google Scholar
• Yaffe H, Parer JT, Block BS, et al. Cardiorespiratory responses to graded reductions in uterine blood flow in the sheep fetus. J Dev Physiol 1987; 9: 325–36.
   PubMedGoogle Scholar
• Itskovitz J, LaGamma EF Rudolph AM. The effect of reducing umbilical blood flow on fetal oxygenation. Am J Obstet Gynecol 1983; 145: 813–18.
   PubMed Web of Science ®Google Scholar
• Myers RE. Two patterns of perinatal brain damage and their conditions of occurrence. Am J Obstet Gynecol 1972; 112: 246–76.
   PubMed Web of Science ®Google Scholar
• Hobbins JC, Mahoney MJ. In utero diagnosis of hemoglobinopathies. Technique for obtaining fetal blood. NEJM 1974; 290: 1065.
   PubMed Web of Science ®Google Scholar
• Daffos F, Capella-Pavlovsky M Forestier F. Fetal blood sampling via the umbilical cord using a needle guided by ultrasound. Prenat Diagn 1983; 3: 271
   PubMed Web of Science ®Google Scholar
• Berkowitz RL, Lynch L. Fetal blood sampling. In: Creasy RK, Resnik R, eds. Maternal-fetal medicine: principles and practice, 3rd ed. pp. 359–69. Philadelphia: W.B. Saunders Co., 1994.
   Google Scholar
• Ghidini A, Sepulveda W, Lockwood CJ, et al. Complications of fetal blood sampling. Am J Obstet Gynecol 1993; 168: 1339–44.
   PubMed Web of Science ®Google Scholar
• Jauniaux E, Donner C, Simon P, et al. Pathologic aspects of the umbilical cord after percutaneous umbilical blood sampling. Obstet Gynecol 1989; 73: 215–8.
   PubMedGoogle Scholar
• Nicolini U, Nicolaides P, Fisk NM, et al. Fetal blood sampling from the intra-hepatic vein: analysis of safety and clinical experience with 214 procedures. Obstet Gynecol 1990; 76: 47–53.
   PubMedGoogle Scholar
• Nicolaides KH, Economides DL Soothill PW. Blood gases, pH, and lactate in appropriate and small-for-gestational-age fetuses. Am J Obstet Gynecol 1989; 161: 996.
   PubMed Web of Science ®Google Scholar
• Nicolini U, Nicolaides P, Fisk NM, et al. Limited role of fetal blood sampling in the prediction of outcome in intrauterine growth retardation. Lancet 1990; 2: 768.
   Google Scholar
• Parer JT. Ancillary methods and in utero treatment. In: Handbook of fetal heart rate monitoring, 2nd ed. pp. 119–42. Philadelphia: W.B. Saunders Co., 1997.
   Google Scholar
• Wood C, Ferguson R, Leeton J, et al. Fetal heart rate and acid-base status in the assessment of fetal hypoxia. Am J Obstet Gynecol 1967; 98: 62–70.
   PubMedGoogle Scholar
• Hon EH. An atlas of fetal heart rate patterns. New Haven, CT: Harty Press, 1968.
   Google Scholar
• Caldeyro-Barcia R, Medez-Bauer C, Poseiro JJ, et al. Control of human fetal heart rate during labor. In: Cassels DE, ed. The heart and circulation in the newborn and infant. pp. 7–36. New York: Grune and Straton, 1966.
   Google Scholar
• Saling E. Foetal and neonatal hypoxia in relation to clinical obstetric practice. Baltimore: Williams and Wilkins, 1968.
   Google Scholar
• O’Driscoll K, Meagher D Boylan P. Active management of labor, 3rd ed. London: Mosby-Year Book, 1993.
   Google Scholar
• Haverkamp AD, Orleans M, Langendoerfer S, et al. A controlled trial of the differential effects of intrapartum fetal monitoring. Am J Obstet Gynecol 1979; 134: 399–412.
   PubMed Web of Science ®Google Scholar
• Berg D, Saling E. The oxygen partial pressures in the human fetus during labor and delivery. In: Longo LD, Bartels H. eds. Respiratory gas exchange and blood flow in the placenta. pp. 441–59. Bethesda, MD: U.S. Department of Health, Education and Welfare Publications, 1972.
   Google Scholar
• Beard RW, Morris ED Clayton SG. pH of foetal capillary blood as an indicator of the condition of the foetus. J Obstet Gynaecol Br Commonw 1967; 74: 812–22.
   PubMedGoogle Scholar
• Tejani N, Mann LI Bhakthavathsalan A. Correlation of fetal heart rate patterns and fetal pH with neonatal outcome. Obstet Gynecol 1976; 48: 460–3.
   PubMed Web of Science ®Google Scholar
• Kubli FW, Hon EH, Khazin AF, et al. Observations on heart rate and pH in the human fetus during labor. Am J Obstet Gynecol 1971; 109: 628–37.
   Google Scholar
• Paul RH, Suldan AK, Yeh SY, et al. Clinical fetal monitoring. VII. The evaluation and significance of intrapartum baseline FHR variability. Am J Obstet Gynecol 1975; 123: 206–10.
   PubMed Web of Science ®Google Scholar
• Clark SL, Gimovsky ML Miller FC. Fetal heart rate response to scalp blood sampling. Am J Obstet Gynecol 1982; 144: 706–8.
   Google Scholar
• Clark SL, Gimovsky ML Miller FC. The scalp stimulation test: a clinical alternative to fetal scalp blood sampling. Am J Obstet Gynecol 1984; 148: 274–7.
   PubMed Web of Science ®Google Scholar
• Elimian A, Figueroa R Tejani N. Intrapartum assessment of fetal well being: a comparison of scalp stimulation with scalp blood pH sampling. Obstet Gynecol 1997; 89: 373–6.
   PubMed Web of Science ®Google Scholar
• Grimwade JC, Walker DW, Martlett M, et al. Fetal heart rate change and movement in response to sound and vibration. Am J Obstet Gynecol 1971; 109: 86–90.
   PubMed Web of Science ®Google Scholar
• Druzin ML, Gratacos J Paul RH. Antepartum fetal heart rate testing. VI. Predictive reliability of a normal test in the prevention of antepartum death. Am J Obstet Gynecol 1980; 137: 746–7.
   Google Scholar
• Smith CV, Nguyen HN, Phelan JP, et al. Intrapartum assessment of fetal well being: a comparison of acoustic stimulation with acid-base determination. Am J Obstet Gynecol 1986; 155: 726–8.
   PubMed Web of Science ®Google Scholar
• Perkins BP. Perinatal observations in a high-risk population managed without intrapartum pH studies. Am J Obstet Gynecol 1984; 149: 327–34.
   PubMed Web of Science ®Google Scholar
• Clark SL, Paul RH. Intrapartum fetal surveillance: the role of fetal scalp blood sampling. Am J Obstet Gynecol 1985; 153: 717–20.
   PubMed Web of Science ®Google Scholar
• Goodwin TM, Milner-Masterson L Paul RH. Elimination of fetal scalp blood sampling on a large clinical service. Obstet Gynecol 1994; 83: 971–4.
   PubMed Web of Science ®Google Scholar
• Lievaart M, de Jong PA. Acid-base equilibrium in umbilical cord blood and time of cord clamping. Obstet Gynecol 1984; 63: 44–7.
   PubMed Web of Science ®Google Scholar
• Sykes GS, Molloy PM. Effects of delays in collection on results of umbilical cord blood gas measurements. Br J Obstet Gynaecol 1984; 91: 989–2.
   PubMedGoogle Scholar
• Duerbeck NB, Chaffin DG Seeds JW. A practical approach to umbilical artery pH and blood gas determinants. Obstet Gynecol 1992; 79: 959–62.
   PubMedGoogle Scholar
• Strickland DM, Gilstrap LC III, Hauth JC, et al. Umbilical cord pH and PCO2: effect of interval from delivery to determination. Am J Obstet Gynecol 1984; 148: 191–4.
   PubMedGoogle Scholar
• Sato I, Saling E. Changes of pH values during storage of fetal blood samples. J Perinat Med 1975; 3: 211–4.
   Google Scholar
• Hilger JS, Holzman IR Brown DR. Sequential changes in placental blood gases and pH during the hour following delivery. J Repro Med 1981; 26: 305–7.
   PubMed Web of Science ®Google Scholar
• Gilstrap LC, Hauth JC, Hankins GDV, et al. Second-stage heart rate abnormalities and type of neonatal acidemia. Obstet Gynecol 1987; 70: 191–5.
   PubMed Web of Science ®Google Scholar
• Mitchell J, Schulman H, Fleischer A, et al. Meconium aspiration and fetal aci-dosis. Obstet Gynecol 1985; 65: 352–5.
   PubMed Web of Science ®Google Scholar
• Yeomans ER, Gilstrap LC, Leveno KJ, et al. Meconium in the amniotic fluid and fetal acid-base status. Obstet Gynecol 1989; 73: 175–8.
   PubMed Web of Science ®Google Scholar
• Hankins GDV, Snyder RR, Hauth JC, et al. Nuchal cords and neonatal outcome. Obstet Gynecol 1987; 70: 687–91.
   PubMed Web of Science ®Google Scholar
• Caritas SN, Abouleish E, Edelstone DI, et al. Fetal acid-base state following spinal or epidural anesthesia for cesarean section. Obstet Gynecol 1980; 56: 610–5.
   Google Scholar
• Sykes GS, Molloy PM, Johnson P, et al. Do apgar scores indicate asphyxia. Lancet 1982; 1: 494–6.
   PubMed Web of Science ®Google Scholar
• Parer JT. Asphyxia and brain damage. In: Parer JT. Handbook of fetal heart rate monitoring, 2nd ed. pp. 197–205. Philadelphia. W.B. Saunders and Co., 1997.
   Google Scholar
• Nelson KB, Emery ES. Birth asphyxia and the neonatal brain: what do we know and when do we know it? Clin Perinat 1993; 20: 327–44.
   PubMed Web of Science ®Google Scholar
• American Academy of Pediatrics, The American College of Obstetricians and Gynecologists. Guidelines for perinatal care, 4th ed. p. 123. Elk Grove, IL: American Academy of Pediatrics, 1997.
   Google Scholar
• Thorp JA, Sampson JE, Parisi VM, et al. Routine umbilical cord blood gas determinations? Am J Obstet Gynecol 1989; 161: 600–5.
   PubMed Web of Science ®Google Scholar