Routine electronic fetal monitoring during labor

References

• Alwarez H., Caldeyro R. Contractility of the human uterus recorded by new methods. Surg Gynecol Obstet 1950; 91: 1
   Google Scholar
• Amato J. C. Fetal monitoring in a community hospital. A statistical analysis. Obstet Gynecol 1977; 50: 269
   Google Scholar
• Apgar V. The newborn (Apgar) Scoring system. Ped Clin N Am 1966; 13: 645
   PubMed Web of Science ®Google Scholar
• Banta H. D., Thacker S. B. Assessing the costs and benefits of electronic fetal monitoring. Obstet Gynecol Surv 1979; 34: 627
   PubMedGoogle Scholar
• Barcroft J. The development of vascular reflexes. Researches on prenatal life, C. C. Thomas. Blackwell Scientific Publications, Oxford 1946; Vol. I: 123
   Google Scholar
• Baumgarten K., Frohlich H. Fetale Rhythmusstör-ungen in der Schwangerschaft und unter der Geburt. Z Geburtshilfe Perinatol 1972; 176: 249
   Google Scholar
• Beard R. W., Filshie G. M., Knight C. A., Roberts G. M. The significance of the changes in the continuous fetal heart rate in the first stage of labour. J Obstet Gynaecol Br Commonw 1971; 78: 865
   PubMedGoogle Scholar
• Beard R. W. The detection of fetal asphyxia in labor. Pediatrics 1974; 53: 157
   Google Scholar
• Beard R. W., Edington P. T., Sibanda J. The effects of routine intrapartum monitoring on clinical practice. Contr Gynecol Obstet 1977; 3: 14
   Google Scholar
• Beard R. W., Rivers R. P. A. Fetal asphyxia in labour. Lancet 1979; ii: 1117
   Google Scholar
• Beguin F., Yeh S. Y., Forsythe A., Hon E. H. A study of fetal heart rate deceleration areas. II. Correlation between deceleration areas and fetal pH during labor. Am J Obstet Gynecol 1975; 45: 292
   Google Scholar
• Benedetti T. J., Lowensohn R. I., Truscott A. M. Face presentation at term. Obstet Gynecol 1980; 55: 199
   PubMed Web of Science ®Google Scholar
• Bengtsson L. P. The sponge-tipped catheter—a modification of the open catheter for recording of myometrial activity in vivo. J Reprod Fertil 1968; 16: 115
   Google Scholar
• Bishop E. H. Obstetric uses of the ultrasonic motion sensor. Am J Obstet Gynecol 1966; 96: 863
   PubMed Web of Science ®Google Scholar
• Bishop E. H. Ultrasonic fetal monitoring. Clin Obstet Gynecol 1968; 11: 1154
   PubMedGoogle Scholar
• Bissonette J. M. Relationship between continuous fetal heart rate patterns and Apgar score in the newborn. Br J Obstet Gynecol 1975; 82: 24
   Google Scholar
• Bowes W. A., Gabbe S. G., Bowes C. Fetal heart rate monitoring in premature infants weighing 1500 grams or less. Am J Obstet Gynecol 1980; 137: 791
   Google Scholar
• Brady J. P., James L. S. Heart rate changes in the fetus and newborn infant during labor, delivery, and the immediate neonatal period. Am J Obstet Gynecol 1962; 84: 1
   PubMed Web of Science ®Google Scholar
• Bruce S., James L. S., Bowe E., Rey H., Shamsi H. Umbilical cord complications as a cause of perinatal morbidity and mortality. J Perinat Med 1978; 6: 89
   Google Scholar
• Caldeyro-Barcia R., Sereno J. A. The response of the human uterus to oxytocin throughout pregnancy. Oxytocin, R. Caldeyro-Barcia, H. Heller. Pergamon Press. 1961; 177
   Google Scholar
• Caldeyro-Barcia R., Poseiro J. J., Negreiros de Paiva C., Gómes Rogers C., Faúndes Latham A., Zambrana M. A., Arellano Hernández G., Beauquis A., Pena Ortiz P., Aguero Lugones F., Filler W., Jr. Effects of abnormal uterine contractions on a human fetus. Mod Probl Paediatr 1963; 8: 267
   Google Scholar
• Caldeyro-Barcia R., Méndez-Bauer C., Poseiro J. J., Escarcena L. A., Pose S. V., Bieniarz J., Arnt I., Gulin L., Althabe O. Control of human fetal heart rate during labor. The Heart and Circulation in the Newborn and Infant, D. E. Cassels, New York 1966; 7
   Google Scholar
• Caldeyro-Barcia R., Casacuberta C., Bustos R., Giussi G., Gulin L., Escarcena L., Méndez-Bauer C. Correlation of intrapartum changes in fetal heart rate with fetal blood oxygen and acid-base state. Diagnosis and Treatment of Fetal Disorders, K. Adamson. Springer Verlag, New York 1968; 205
   Google Scholar
• Caldeyro-Barcia R., De Haan J., Hammacher K., Hon E. H., James S., Paul R., Saling E., Sureau C. Travaux du “Comite d'Amsterdam”. J Gynecol Obstet Biol Reprod 1974; 3: 931
   Google Scholar
• Callagan D. A., Rowland T. C., Goldman D. E. Ultrasonic Doppler observation of the fetal heart. Obstet Gynecol 1964; 23: 637
   Google Scholar
• Carlsson J., Svenningsen N. W. Respiratory insufficiency syndrome (RIS) in preterm infants with gestational age of 32 weeks and less. Neonatal management and follow-up study. Acta Paediatr Scand 1975; 64: 813
   Google Scholar
• Cerevka J., Scheffs J. S., Vasicka A. Shape of uterine contractions (intra-amniotic pressure) and corresponding fetal heart rate. Obstet Gynecol 1970; 35: 695
   Google Scholar
• Chik L., Sokol R. J., Rosen M. G. “Prediction” of the one-minute Apgar score from fetal heart rate data. Obstet Gynecol 1976; 48: 452
   PubMedGoogle Scholar
• Cibils L. A. Clinical significance of fetal heart rate patterns during labor. II. Late decelerations. Am J Obstet Gynecol 1975; 123: 473
   Google Scholar
• Cibils L. A. Clinical significance of fetal heart rate patterns during labor. V. Variable decelerations. Am J Obstet Gynecol 1978; 132: 791
   Google Scholar
• Cibils L. A. Clinical significance of fetal heart rate patterns during labor. VI. Early decelerations. Am J Obstet Gynecol 1980; 136: 392
   Google Scholar
• Coltart T. M., Trickey N. R., Beard R. W. Foetal blood sampling. Practical approach to management of foetal distress. Br Med J 1969; 1: 342
   Google Scholar
• Cremer M. V. Über die direkte Ableitung der Aktionsstrome des menschlichen Herzens vom Oesophagus and iiber das Elektrokardiogramm des Fötus. Munch Med Wochenschr 1906; 53: 811
   Google Scholar
• Drage J. S., Berendes H. Apgar scores and outcome of the newborn. Ped Clin N Am 1966; 13: 635
   Web of Science ®Google Scholar
• Embrey M. P. The effects of intravenous oxytocin on uterine contractility. J Obstet Gynaecol Br Commonw 1962; 69: 910
   Google Scholar
• Escarcena L., McKinney R. D., Depp R. Fetal baseline heart rate variability estimation. I. Comparison of clinical and stochastic quantification techniques. Am J Obstet Gynecol 1979; 135: 615
   Google Scholar
• Favier J., Helfferich M. The effects on the fetus of an abnormal contraction pattern in the induction of labor with oxytocin. Am J Obstet Gynecol 1972; 112: 1107
   Google Scholar
• Fleiss J. L. Statistical methods for rates and proportions. New York 1973
   Google Scholar
• Friedman E. A., Sachtleben M. R. Effect of oxytocin and oral prostaglandin E2 on uterine contractility and fetal heart rate patterns. Am J Obstet Gynecol 1978; 130: 403
   Google Scholar
• Gabert H. A., Stenchever M. A. The results of a five-year study of continuous fetal monitoring on an obstetric service. Obstet Gynecol 1977; 50: 275
   Google Scholar
• Gaziano E. P. A study of variable decelerations in association with other heart rate patterns during monitored labor. Am J Obstet Gynecol 1979; 135: 360
   PubMedGoogle Scholar
• Goldkrand J. W., Speichinger J. P. “Mixed cord compression”, fetal heart rate pattern, and its relation to abnormal cord position. Am J Obstet Gynecol 1975; 122: 144
   Google Scholar
• Goodlin R. C., Lowe E. W. A functional umbilical cord occlusion heart rate pattern. The significance of overshoot. Obstet Gynecol 1974; 43: 22
   Google Scholar
• Goodlin R. C. Fetal cardiovascular responses to distress. A review. Obstet Gynecol 1977; 49: 371
   Google Scholar
• Goodlin R. C., Haesslein H. C. When is it fetal distress?. Am J Obstet Gynecol 1977; 128: 440
   Google Scholar
• Goodlin R. C., Haesslein H. C. Fetal reacting bradycardia. Am J Obstet Gynecol 1977; 129: 845
   PubMedGoogle Scholar
• de Haan J., Martin C. B., Evers J. L., Jongsma H. W. Pathophysiologic mechanisms underlying fetal heart rate patterns. Perinatal Medicine, O. Thalhammer, K. Baumgarten, A. Pollak. Georg Thieme Verlag, Stuttgart 1979; 200
   Google Scholar
• Haesslein H. C., Niswander K. R. Fetal distress in term pregnancies. Am J Obstet Gynecol 1980; 137: 245
   PubMed Web of Science ®Google Scholar
• Hammacher K. Neue Methode zur selektiven Registrierung der fetalen Herzschlagfrequenz. Geburtshilfe Frauenheilkd 1962; 22: 1542
   Google Scholar
• Hammacher K., Hüter K. A., Bokelmann J., Werners P. H. Foetal heart frequency and perinatal condition of the foetus and newborn. Gynaecologia 1968; 166: 349
   Google Scholar
• Hammacher K., Werners P. H. Über die Auswer-tung und Dokumentation von CTG-Ergebnissen. Gynaecologia 1968; 166: 410
   PubMedGoogle Scholar
• Haverkamp A. D., Thompson H. E., McFee J. G., Cetrulo C. The evaluation of continuous fetal heart rate monitoring in high-risk pregnancy. Am J Obstet Gynecol 1976; 125: 310
   PubMed Web of Science ®Google Scholar
• Haverkamp A. D., Orleans M., Langendoerfer S., McFee J., Murphy J., Thompson H. E. A controlled trial of the differential effects of intrapartum fetal monitoring. Am J Obstet Gynecol 1979; 134: 399
   PubMed Web of Science ®Google Scholar
• Hobbins J. C., Freeman R., Queenan J. T. The fetal monitoring debate. Obstet Gynecol 1979; 54: 103
   PubMed Web of Science ®Google Scholar
• Hobel C. J., Hyvarinen M. A., Okada D. M., Oh W. Prenatal and intrapartum high-risk screening. 1. Prediction of the high-risk neonate. Am J Obstet Gynecol 1973; 117: 1
   PubMed Web of Science ®Google Scholar
• Hochuli E., Eberhard J., Dubler O. The effect of modern intensive monitoring in obstetrics on infant mortality and the incidence of hypoxia and acidosis. J Perinat Med 1976; 4: 78
   Google Scholar
• Hofbauer J., Weiss O. Photographische Registrierung der fijtalen Herztöne. Zentralbl Gynaekol 1908; 13: 429
   Google Scholar
• Hon E. H. Electronic evaluation of the fetal heart rate. VI. Fetal distress—a working hypothesis. Am J Obstet Gynecol 1962; 83: 333
   Google Scholar
• Hon E. H. Instrumentation of fetal heart rate and fetal electrocardiography. II. A vaginal electrode. Am J Obstet Gynecol 1963; 86: 772
   Google Scholar
• Hon E. H. An atlas of fetal heart rate patterns. Harty Press, New Haven 1968
   Google Scholar
• Hon E. H. Biophysical studies of the human fetus. Diagnoses and Treatment of Fetal Disorders, K. Adamson. Springer Verlag, New York 1968; 185
   Google Scholar
• Hon E. H. Biophysical intrapartal fetal monitoring. Clin Perinatol 1974; 1: 149
   PubMedGoogle Scholar
• Hon E. H. An introduction to fetal heart rate monitoring2nd ed. Los Angeles, California 1975
   Google Scholar
• Hon E. H., Zannini D., Quilligan E. J. The neonatal value of fetal monitoring. Am J Obstet Gynecol 1975; 122: 508
   Google Scholar
• Huey J. R., Paul R. H., Hadjiev A. A., Jilek J., Hon E. H. Fetal heart rate variability: An approach to automated asessment. Am J Obstet Gynecol 1979; 134: 691
   PubMed Web of Science ®Google Scholar
• Hughey M. J., LaPata R. E., McElin T. W., Lussky R. The effect of fetal monitoring on the incidence of cesarean section. Obstet Gynecol 1977; 49: 513
   PubMed Web of Science ®Google Scholar
• Illingsworth R. S. Why blame the obstetrician? A review. Br Med J 1979; 1: 797
   Google Scholar
• Ingemarsson I., Westgren M., Svenningsen N. W. long-term follow-up of preterm infants in breech presentation delivered by cesarean section. Lancet 1978; i: 172
   Google Scholar
• Jacobson L. Studies on acid-base and electrolyte components of human foetal and maternal blood during labour. Thesis, University of Lund, Sweden 1970
   Google Scholar
• James L. S., Bowe E. T., Balfour H. H. Predictability and complications of fetal blood sampling. Diagnoses and Treatment of Fetal Disorders, K. Adamson. Springer Verlag, New York 1968; 178
   Google Scholar
• James L. S., Morishima H. O., Daniel S. S., Bowe E. T., Cohen H., Niemann W. H. Mechanism of late deceleration of the fetal heart rate. Am J Obstet Gynecol 1972; 113: 578
   Google Scholar
• James L. S., Yeh M. N., Morishima H. O., Daniel S. S., Caritis S. N., Niemann W. H., Indyk L. Umbilical vein occlusion and transient acceleration of the fetal heart rate. Experimental observations in subhuman primates. Am J Obstet Gynecol 1976; 126: 276
   PubMed Web of Science ®Google Scholar
• Johnstone F. D., Campbell D. M., Hughes G. J. Has continuous intrapartum monitoring made any impact on fetal outcome?. Lancet 1978; i: 1298
   Google Scholar
• Kelso I. M., Parsons R. J., Lawrence G. F., Arora S. S., Edmonds D. K., Cooke I. D. An assessment of continuous fetal heart rate monitoring in labor. A randomized trial. Am J Obstet Gynecol 1978; 131: 526
   PubMed Web of Science ®Google Scholar
• Kennedy E. Observations of obstetrical auscultation. Hodges & Smith, Dublin 1833
   Google Scholar
• Krapohl A. J., De Vries J. H., Evans T. N. Electronic control of induction of labor. Obstet Gynecol 1965; 25: 334
   Google Scholar
• Krapohl A. J., Myers G. G., Caldeyro-Barcia R. Uterine contractions in spontaneous labor. A quantitive study. Am J Obstet Gynecol 1970; 106: 378
   PubMed Web of Science ®Google Scholar
• Krebs H. B., Petres R. E., Dunn L. J., Jordaan H. V. F., Segreti A. Intrapartum fetal heart rate monitoring. I. Classification and prognosis of fetal heart rate patterns. Am J Obstet Gynecol 1979; 133: 762
   PubMed Web of Science ®Google Scholar
• Krebs H. B., Petres R. E., Dunn L. J., Jordaan H. V. F., Segreti A. Intrapartum fetal heart rate monitoring. 11. Multifactorial analysis of intrapartum fetal heart rate tracings. Am J Obstet Gynecol 1979; 133: 773
   PubMedGoogle Scholar
• Krebs H. B., Petres R. E., Dunn L. J., Segreti A. Intrapartum fetal heart rate monitoring. IV. Observations on elective and nonelective fetal heart rate monitoring. Am J Obstet Gynecol 1980; 138: 213
   Google Scholar
• Kubli F. W., Hon E. H., Khazin A. F., Takemura H. Observations on heart rate and pH in the human fetus during labor. Am J Obstet Gynecol 1969; 104: 1190
   PubMed Web of Science ®Google Scholar
• Kubli F. Impact of intrapartum monitoring on perinatal mortality and morbidity. Contr Gynecol Obstet 1977; 3: 69
   Google Scholar
• Kumar S. P., Anday E. K., Sacks L. M., Ting R. Y., Delivoria-Papadopoulos M. Follow-up studies of very low birth weight infants (1 250 grams or less) born and treated within a perinatal center. Pediatrics 1980; 66: 438
   Google Scholar
• Laros R. K., Wong W. S., Heilbron D. C., Parer J. T., Shnider S. M., Naylor H., Butler J. A comparison of methods for quantitation fetal heart rate variability. Am J Obstet Gynecol 1977; 128: 381
   PubMed Web of Science ®Google Scholar
• Lee W. K., Baggish M. S. The effect of unselected intrapartum fetal monitoring. Obstet Gynecol 1976; 47: 516
   PubMedGoogle Scholar
• Le Jumeau de Kergaradec J. A. Memoire sur I'auscultation appliquee A l'etude de la grossesse. Paris 1822
   Google Scholar
• Lindroth M., Svenningsen N. W., Ahlström H., Jonson B. Evaluation of mechanical ventilation in newborn infants. I. Techniques and survival rates. Acta Paediatr Scand 1980; 69: 143
   Google Scholar
• Low J. A., Boston R. W., Pancham S. R. The role of fetal heart rate patterns in the recognition of fetal asphyxia with metabolic acidosis. Am J Obstet Gynecol 1971; 109: 922
   PubMedGoogle Scholar
• Low J. A., Pancham S. R., Worthington D., Boston R. W. Clinical characteristics of pregnancies complicated by intrapartum fetal asphyxia. Am J Obstet Gynecol 1975; 121: 452
   Google Scholar
• Low J. A., Pancham S. R., Worthington D., Boston R. W. The incidence of fetal asphyxia in six hundred high-risk monitored pregnancies. Am J Obstet Gynecol 1975; 121: 456
   Google Scholar
• Low J. A., Pancham S. R., Worthington D. N. Intrapartum fetal heart rate profiles with and without fetal asphyxia. Am J Obstet Gynecol 1977; 127: 729
   PubMed Web of Science ®Google Scholar
• Low J. A., Galbraith R. S., Muir D., Killen H., Karchmar J., Campbell D. Intrapartum fetal asphyxia: A preliminary report in regard to long-term morbidity. Am J Obstet Gynecol 1978; 130: 525
   Google Scholar
• Mayer P. S., Wingate M. B. Obstetric factors in cerebral palsy. Obstet Gynecol 1978; 51: 399
   PubMed Web of Science ®Google Scholar
• Mayor F. I. Bibliotheque universelle des sciences, belles-lettres et arts. Genéve 1818; Vol. 9: 249
   Google Scholar
• Milligan J. E., Shennan A. T. Perinatal management and outcome in the infant weighing 1000 to 2000 grams. Am J Obstet Gynecol 1980; 136: 269
   Google Scholar
• Modanlou H. D., Freeman R. K., Braly P., Rasmussen S. B. A simple method of fetal and neonatal heart rate beat-to-beat variability quantitation: Preliminary report. Am J Obstet Gynecol 1977; 127: 861
   Google Scholar
• Mueller-Heubach E., MacDonald H. M., Joret D., Portman M. A., Edelstone D. I., Caritis S. N. Effects of electronic fetal heart rate monitoring on perinatal outcome and obstetric practices. Am J Obstet Gynecol 1980; 137: 758
   Google Scholar
• Myers R. E. Two patterns of perinatal brain damage and their conditions of occurrence. Am J Obstet Gynecol 1972; 112: 246
   PubMed Web of Science ®Google Scholar
• Myers R. E., Mueller-Heubach E., Adamsons K. Predictability of the state of fetal oxygenation from a quantitative analysis of the components of late deceleration. Am J Obstet Gynecol 1973; 115: 1083
   Google Scholar
• Neutra R. R., Fienberg S. E., Greenland S., Friedman E. A. Effect of fetal monitoring on neonatal death rates. N Engl J Med 1978; 299: 324
   PubMed Web of Science ®Google Scholar
• Niswander K. R., Gordon M., Drage J. S. The effect of intrauterine hypoxia on the child surviving to 4 years. Am J Obstet Gynecol 1975; 121: 892
   PubMed Web of Science ®Google Scholar
• Niswander K. R. The obstetrician, fetal asphyxia and cerebral palsy. Am J Obstet Gynecol 1979; 133: 358
   Google Scholar
• Painter M. J., Depp R., O'Donoghue P. D. Fetal heart rate patterns and development in the first year of life. Am J Obstet Gynecol 1978; 132: 271
   PubMed Web of Science ®Google Scholar
• Parer J. T. Fetal heart-rate monitoring. Lancet 1979; ii: 632
   Google Scholar
• Parer J. T., Krueger T. R., Harris J. L. Fetal oxygen consumption and mechanisms of heart rate response during artificially produced late decelerations of fetal heart rate in sheep. Am J Obstet Gynecol 1980; 136: 478
   Google Scholar
• Paul R. H. Clinical fetal monitoring. Experience on a large clinical service. Am J Obstet Gynecol 1972; 213: 573
   Google Scholar
• Paul R. H., Hon E. H. Clinical fetal monitoring. V. Effect on perinatal outcome. Am J Obstet Gynecol 1974; 118: 529
   Google Scholar
• Paul R. H., Suidan A. K., Yeh S. Y., Schifrin B. S., Hon E. H. Clinical fetal monitoring. VII. The evaluation and significance of intrapartum baseline FHR variability. Am J Obstet Gynecol 1975; 123: 206
   PubMed Web of Science ®Google Scholar
• Paul R. H., Huey J. R., Yaeger C. F. Clinical fetal monitoring, its effect on cesarean section rate and perinatal mortality: five-year trends. Postgrad Med 1977; 61: 160
   Web of Science ®Google Scholar
• Paul R. H., Gauthier R. J., Quilligan E. J. Clinical fetal monitoring. The usage and relationship to trends in cesarean delivery and perinatal mortality. Acta Obstet Gynecol Scand 1980; 59: 289
   Web of Science ®Google Scholar
• Phillips R. D., Freeman M. The management of the persistent occiput posterior position. A review of 552 consecutive cases. Obstet Gynecol 1974; 43: 171
   Google Scholar
• Poseiro J. J., Noriega-Guerra L. Dose-response relationships in uterine effect of oxytocin infusions. Oxytocin, R. Caldeyro-Barcia, H. Heller. Pergamon Press. 1961; 158
   Google Scholar
• Quilligan E. J., Collea J. V. Fetal monitoring in pregnancy. Adv Pediatr 1976; 22: 33
   Google Scholar
• Rech W. Ein neues Verfahren zur selbsttätigen fort-laufenden Registrierung der Wehentätigkeit. Arch Gynäkol 1934; 157: 458
   Google Scholar
• Renou P., Chang A., Anderson I., Wood C. Controlled trial of fetal intensive care. Am J Obstet Gynecol 1976; 126: 470
   PubMed Web of Science ®Google Scholar
• Reynolds S. R., Heard O. O., Bruns P., Hellman L. M. A multi-channel strain-gage tokodynamometer: An instrument for studying patterns of uterine contractions in pregnant women. Bull Johns Hopkins Hosp 1948; 82: 446
   Google Scholar
• Saling E. Neues Vorgehen zur Untersuchungen des Kindes unter der Geburt. Arch Gynäkol 1962; 197: 108
   PubMedGoogle Scholar
• Saling E. Z., Dudenhausen J. W. The present situation of clinical monitoring of the fetus during labor. J Perinat Med 1973; 1: 75
   Google Scholar
• Schatz F. Beiträge zur physiologischen Geburt-skunde. Arch Gynaekol 1872; 3: 75
   Google Scholar
• Schifrin B. S. Fetal heart rate patterns following epidural anaesthesia and oxytocin infusion during labor. Br J Obstet Gynaecol 1972; 79: 332
   Google Scholar
• Schifrin B. S., Dame L. Fetal heart rate patterns. Prediction of Apgar score. JAMA 1972; 219: 1322
   Google Scholar
• Schwarcz R. L., Belizan J. M., Cifuentes J. R., Cuadro J. C., Marques M. B., Caldeyro-Barcia R. Fetal and maternal monitoring in spontaneous labors and in elective inductions. Am J Obstet Gynecol 1974; 120: 356
   PubMed Web of Science ®Google Scholar
• Schwartz H. Die vorzeitigen Athembewegungen. Leipzig 1858
   Google Scholar
• Seitz L. Die fötalen Herztone wahrend der Geburt. Thesis, München 1903
   Google Scholar
• Shamsi H. H., Petrie R. H., Steer C. M. Changing obstetric practices and amelioration of perinatal outcome in a university hospital. Am J Obstet Gynecol 1979; 133: 855
   Google Scholar
• Shelley T., Tipton R. H. Dip area: A quantitative measure of fetal heart rate patterns. J Obstet Gynaecol Br Commonw 1971; 78: 694
   PubMedGoogle Scholar
• Shenker L. Clinical experiences with fetal heart rate monitoring of one thousand patients in labor. Am J Obstet Gynecol 1973; 115: 1111
   PubMedGoogle Scholar
• Shenker L., Post R. C., Seiler J. S. Routine electronic monitoring of fetal heart rate and uterine activity during labor. Obstet Gynecol 1975; 46: 185
   PubMed Web of Science ®Google Scholar
• Shennan A. T., Milligan J. E. The growth and development of infants weighing 1,000 to 2,000 grams at birth and delivered in a perinatal unit. Am J Obstet Gynecol 1980; 136: 273
   Google Scholar
• Sokol R. J., Roux J. F., McCarthy S. Computer diagnosis of labor progression. VI. Fetal stress and labor in the occipito-posterior position. Am J Obstet Gynecol 1975; 122: 253
   Google Scholar
• Sokol R. J., Rosen M. G., Stojkov J., Chik L. Clinical application of high-risk scoring on an obstetric service. Am J Obstet Gynecol 1977; 128: 652
   PubMed Web of Science ®Google Scholar
• Sokol R. J., Stojkov J., Chik L., Rosen M. G. Normal and abnormal labor progress. 1. A quantitative assessment and survey of the literature. J Reprod Med 1977; 18: 47
   Google Scholar
• Steer P. J., Little D. J., Lewis N. L., Kelly M. C.M. E., Beard R. W. Uterine activity in induced labour. Br J Obstet Gynaecol 1975; 82: 433
   PubMedGoogle Scholar
• Stewart A. L., Reynolds E. O. R. Improved prognosis for infants of very low birthweight. Pediatrics 1974; 54: 724
   PubMed Web of Science ®Google Scholar
• Stookey R. A., Sokol R. J., Rosen M. G. Abnormal contraction patterns in patients monitored during labor. Obstet Gynecol 1973; 42: 359
   PubMed Web of Science ®Google Scholar
• Sturbois G., Tournaire M., Ripoche A., Le Houezec R., Breart G., Chavinié J., Sureau C. Evaluation of the fetal state by automatic analysis of the fetal heart rate. 1. Deceleration areas and Apgar score. J Perinat Med 1973; 1: 235
   Google Scholar
• Sureau C., Chavinié J., Michelon B., Feldman J. P., Cannon M., Le Houezec R. Le probleme du rythme cardiaque foetal. Difficult d'interpretation—Solutions techniques. Gynecol Obstet (Paris) 1970; 69: 259
   Google Scholar
• Svenningsen N. W., Jonson B., Lindroth M., Ahlstrom H. Consecutive study of early CPAP-application in hyaline membrane disease. Eur J Pediatr 1979; 131: 9
   Google Scholar
• Tejani N., Mann L. I., Bhakthavathsalan A., Weiss R. R. Correlation of fetal heart rate—uterine contraction patterns with fetal scalp blood pH. Obstet Gynecol 1975; 46: 392
   PubMed Web of Science ®Google Scholar
• Tejani N., Mann L. I., Bhakthavathsalan A. Correlation of fetal heart rate patterns and fetal pH with neonatal outcome. Obstet Gynecol 1976; 48: 460
   PubMed Web of Science ®Google Scholar
• Tejani N. A., Mann L. I., Sanghavi M., Bhakthavathsalan A., Weiss R. R. The association of umbilical cord complications and variable decelerations with acid-base findings. Obstet Gynecol 1977; 49: 159
   PubMed Web of Science ®Google Scholar
• Theobald G. W. The synthesis of divergent observations concerning oxytocin. Oxytocin, R. Cal-deyro-Barcia, H. Heller. Pergamon Press. 1961; 212
   Google Scholar
• Thomas G. The aetiology, characteristics and diagnostic relevance of late deceleration patterns in routine obstetric practice. Br J Obstet Gynaecol 1975; 82: 121
   PubMedGoogle Scholar
• Tipton R. H., Chang A. M. Nuchal encirclement by the umbilical cord. J Obstet Gynaecol Br Commonw 1971; 78: 901
   Google Scholar
• Tournaire M., Yea S. Y., Forsythe A., Hon E. H. A study of fetal heart rate decelerations area. I. Preliminary exploration. Obstet Gynecol 1973; 42: 711
   Google Scholar
• Towell M. E., Salvador H. S. Compression of the umbilical cord: An experimental model in the fetal goat. Fetal Evaluation during Pregnancy and Labor, P. G. Crosignani, G. Pardi. Academic Press, New York 1971; 143
   Google Scholar
• Vasicka A., Hutchinson H. T. Fetal response to induction, augmentation, and correction of labor by oxytocin. Am J Obstet Gynecol 1963; 85: 1054
   Google Scholar
• Westermark F. Experimentelle Untersuchungen uber die Wehentatigkeit des menschlichen Uterus bei der physiologischen Geburt. Scand Arch Physiol 1893; 4: 331
   Google Scholar
• Westgren M., Ingemarsson I., Ahlstrom H., Lindroth M., Svenningsen N. W. Delivery and long-term outcome of very low birth weight infants. Acta Obstet Gynecol Scand
   Google Scholar
• Williams E. A., Stallworthy J. A. A simple method of internal tocography. Lancet 1952; i: 330
   Google Scholar
• Wilson R. W., Schifrin B. S. Is any pregnancy low risk?. Obstet Gynecol 1980; 55: 653
   PubMed Web of Science ®Google Scholar
• Wood C., Ferguson R., Leeton J., Newman W., Walker A. Fetal heart rate and acid-base status in the assessment of fetal hypoxia. Am J Obstet Gynecol 1967; 98: 62
   PubMedGoogle Scholar
• Wood C., Newman W., Lumley J., Hammond J. Classification of fetal heart rate in relation to fetal scalp blood measurements and Apgar score. Am J Obstet Gynecol 1969; 105: 942
   PubMed Web of Science ®Google Scholar
• Wood C. Diagnostic and therapeutic implications of intrapartum fetal pH measurement. Acta Obstet Gynecol Scand 1978; 57: 13
   PubMed Web of Science ®Google Scholar
• Yeh S. Y., Forsythe A., Hon E. H. Quantification of fetal heart beat-to-beat interval differences. Obstet Gynecol 1973; 41: 355
   PubMed Web of Science ®Google Scholar
• Yeh M. N., Morishima H. O., Niemann W. H., James L. S. Myocardial conduction defects in association with compression of the umbilical cord. Am J Obstet Gynecol 1975; 121: 951
   Google Scholar
• Young B. K., Katz M., Wilson S. J. Fetal blood and tissue pH with variable deceleration patterns. Obstet Gynecol 1980; 56: 170
   PubMed Web of Science ®Google Scholar
• Young D. C., Gray J. H., Luther E. R., Peddle L. J. Fetal scalp blood pH sampling: Its value in an active obstetric unit. Am J Obstet Gynecol 1980; 136: 276
   Google Scholar
• Yu V. Y. H., Hollingsworth E. Improving prognosis for infants weighing 1 000 g or less at birth. Arch Dis Childh 1979; 55: 422
   Google Scholar
• Zalar R. W., Quilligan E. J. The influence of scalp sampling on the cesarean section rate for fetal distress. Am J Obstet Gynecol 1979; 135: 239
   PubMed Web of Science ®Google Scholar
• Zanini B., Paul R. H., Huey J. R. Intrapartum fetal heart rate; Correlation with scalp pH in the preterm fetus. Am J Obstet Gynecol 1980; 136: 43
   PubMedGoogle Scholar
• Zuspan F. P., Quilligan E. J., Iams J. D., van Geijn H. P. Predictors of intrapartum fetal distress: The role of electronic fetal monitoring. Am J Obstet Gynecol 1979; 135: 287
   PubMed Web of Science ®Google Scholar