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Effects of Pressure Gradient on the Fetal Cranium

  • Lennart Lindgren

Abstract

During labor the fetus is influenced mainly by two stress factors, decreased oxygenation and pressure of the uterine contractions. The uterine contractions decrease the amount of oxygen to the fetus. The fetal reaction to the decreased supply of oxygen may be studied by determination of Ph, Po 2, and Pco 2, and by recordings of the fetalheart rate during labor.

Keywords

Pelvic Floor Amniotic Fluid Uterine Cavity Frontal Bone Uterine Wall 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Schwartz, Ph., 1961, Birth Injuries of the Newborn, Karger, Basle and New York.Google Scholar
  2. 2.
    Schwartz, Ph., 1973, Alte und neue Beobachtungen über perinatale Schädigungen Neugeborener, Monatsschr. Kinderheilkd. 264:121.Google Scholar
  3. 3.
    Lindgren, L., Normann, P., and Viberg, L., 1962, The causes of perinatal death, Acta Obstet. Gynecol. Scand. 41:268.CrossRefGoogle Scholar
  4. 4.
    Hon, E. H., 1963, The classification of fetal heart rate, I. A working classification, Obstet. Gynecol. 22:137.PubMedGoogle Scholar
  5. 5.
    Caldeyro-Barcia, R., Mendez-Bauer, C, Poseiro, J., et al., 1966, Control of human fetal heart rate during labour, in: The Heart and Circulation in the Newborn and Infant (Donald E. Cassels, ed.), p. 7, Grune & Stratton, New York.Google Scholar
  6. 6.
    Goerttler, K., 1930–31, Die Architektur der Muskelwand des menschlichen Uterus und ihre funktionelle Bedeutung, Gegenbaurs Morphol. Jahrb. 65:45.Google Scholar
  7. 7.
    Pauerstein, C. J., Alexander, R. W., Mobley, J. A., et al., 1970, Comparative anatomy of the inner longitudinal muscle layer of the oviductal isthmus, Obstet. Gynecol. 35:504.PubMedGoogle Scholar
  8. 8.
    Wetzstein, R., 1965, Der Uterusmuskel, Morphologie (Referat), Geburtsh. Frauenheilk. 25:74.Google Scholar
  9. 9.
    Shaw, W., and Nirula, P., 1951, Origin of lower uterine segment, J. Obstet. Gynaecol. Br. Emp. 58:165.CrossRefGoogle Scholar
  10. 10.
    Wendell-Smith, C. P., 1954, The lower uterine segment,J. Obstet. Gynaecol. Br. Emp. 61:87.PubMedCrossRefGoogle Scholar
  11. 11.
    Danforth, D. N., and Ivy, A. C, 1949, Lower uterine segment, its derivation and physiologic behavior, Am. J. Obstet Gynecol. 57:831.PubMedGoogle Scholar
  12. 12.
    Danforth, D. N., 1947, The fibrous nature of the human cervix and its relation to isthmic segment in gravid and nongravid uterus, Am. J. Obstet. Gynecol. 53:541.PubMedGoogle Scholar
  13. 13.
    Dubrauszky, V., 1966, Uterine Contractibility Symposium in Würzburg, 1964, Bibl. Gynaecol. 42.Google Scholar
  14. 14.
    Rorie, D. K., and Newton, M., 1967, Histological and chemical studies of the smooth muscle in the human cervix and corpus uterus, Am. J. Obstet. Gynecol. 99:466.PubMedGoogle Scholar
  15. 15.
    Naeslund, J., Snellman, O., Csapo, A., et al., 1950, Studies on the contractility of the uterine body, isthmus and cervix under normal conditions, during pregnancy and in labour, Acta Obstet. Gynecol. Scand. 29:291.CrossRefGoogle Scholar
  16. 16.
    Sandberg, F., Ingelman-Sundberg, A., Lindgren, L., et al., 1957, In vitro studies of the motility of the human uterus, Part I, The spontaneous motility in different parts of the nonpregnant uterus during the sexual cycle and in the menopause and its correlation with the actomyosin content, J. Obstet. Gynaecol. Br. Emp. 64:334.PubMedCrossRefGoogle Scholar
  17. 17.
    Cretius, K., 1967, Veränderungen des mütterlichen Organismus, adaptive Vorgänge an den Genitalorganen, in: Gynäkologie und Geburtshilfe, Vol. II, p. 139, Georg Thieme, Stuttgart.Google Scholar
  18. 18.
    Danforth, D. N., 1954, Distribution and functional significance of the cervical musculature. Am. J. Obstet. Gynecol. 68:1261.PubMedGoogle Scholar
  19. 19.
    Lindgren, L., 1972, The engagement of the foetal head in the uterus when the vertex presents, Acta Obstet. Gynecol. Scand. 51:37.PubMedCrossRefGoogle Scholar
  20. 20.
    Smyth, C. N., 1954, Measurements of the forces and strains of labour and the action of certain oxytocin—drugs, Proc. Congr. Int. Gynaecol. Obstet, Genève, p. 1030.Google Scholar
  21. 21.
    Friedman, E. A., 1956, Cervimetry. An objective method for the study of cervical dilatation in labor, Am. J. Obstet. Gynecol. 71:1189.PubMedGoogle Scholar
  22. 22.
    Siener, H., 1956, Ein Gerät zur Registrierung der Muttermundseröffnung unter der Geburt (Zervixwehenschreiber), Zentralbl. Gynaekol. 78:2069.Google Scholar
  23. 23.
    Siener, H., 1963, First stage of labor recorded by cervical tocometry, Am. J. Obstet. Gynecol. 86:303.PubMedGoogle Scholar
  24. 24.
    Lindgren, L., and Siener, H., 1966, Cervical tension during labor, Am. J. Obstet Gynecol. 95:414.PubMedGoogle Scholar
  25. 25.
    Schatz, F., 1872, Beiträge zur physiologischen Geburtskunde, Arch. Gynaekol. 3:58.CrossRefGoogle Scholar
  26. 26.
    Westermark, F., 1893, Experimentelle Untersuchungen über die Wehentätigkeit des menschlichen Uterus bei der physiologischen Geburt, Scandinav. Arch. Physiol. 4:331.CrossRefGoogle Scholar
  27. 27.
    Wieloch, J., 1927, Ueber Messungen des Druckes in normal graviden und hydram— niotischen Uterus, Zentralbl. Gynaekol. 51:129.Google Scholar
  28. 28.
    Schaeffer, O., 1896, Experimentelle Untersuchungen über die Wehentätigkeit des menschlichen Uterus, A. Hirschwald, Heidelberg.Google Scholar
  29. 29.
    Bukoemsky, F. W., 1896, Ueber Anaesthesierung durch Aether und Chloroformin— halationen bei normalen Geburten, Monatsschr. Geburtsh. Gynaekol. 3:197.Google Scholar
  30. 30.
    Alvarez, H., and Caldeyro-Barcia, R., 1950, Contractility of the human uterus recorded by new methods, Surg. Gynecol. Obstet. 91:1.PubMedGoogle Scholar
  31. 31.
    Smythe, Drew H. J., and Thompson, D. J., 1937, Induction of labour by rupture or high puncture of the membranes, J. Obstet Gynaecol. Br. Emp. 44:480.CrossRefGoogle Scholar
  32. 32.
    Williams, E. A., and Stallworthy, J. A., 1952, A simple method of internal tokography, Lancet 7:330.CrossRefGoogle Scholar
  33. 33.
    Carey, H. M., 1954, An improved technique for the induction of labour, J. Obstet. Gynaecol. Br. Emp. 61:59.PubMedCrossRefGoogle Scholar
  34. 34.
    Crodel, W., 1930, Uterusarbeitsmessung oder Tokergometrie (Tokometrie), Z. Ge— burtsh. Gynaekol. 97:138.Google Scholar
  35. 35.
    Frey, E., and Wenner, D., 1933, Die externe Wehenmessung nach Crodel und ihre Beurteilung an Hand der Wehenzahlen, Arch. Gynaekol. 152:447.CrossRefGoogle Scholar
  36. 36.
    Lorand, S. (Löwi), 1933, Ueber einen neuen wehenzeichnenden Apparat (Tokograph), Zentralbl. Gynaekol. 57:554.Google Scholar
  37. 37.
    Wolf, W., 1940, Äussere Wehenmessung und Wehenschmerz, Zentralbl. Gynaekol. 64:311.Google Scholar
  38. 38.
    Smyth, C. N., 1957, The guard ring tocodynamometer, J. Obstet Gynaecol. Br. Emp. 64:59.PubMedCrossRefGoogle Scholar
  39. 39.
    Fasbender, H., 1906, Gerschichte der Geburtshilfe, Fischer, Jena.Google Scholar
  40. 40.
    Warnekros, K., 1917, Schwangerschaft und Geburt in Röntgenbilde, Bergmann, Wiesbaden.Google Scholar
  41. 41.
    Liepman, W., 1932, Fruchtwirbelsäulendruck oder hydraulischer Druck, Zentralbl. Gynaekol. 56:136.Google Scholar
  42. 42.
    Greenhill, J. P., and Friedman, E. A., 1974, Biological Principles and Modern Practice of Obstetrics, Saunders, Philadelphia, Pa.Google Scholar
  43. 43.
    Borell, U., and Fernström, I., 1967, The mechanism of labor, Radiol. Clin. North Am. 5:73.PubMedGoogle Scholar
  44. 44.
    Lindgren, L., 1955, The lower parts of the uterus during the first stage of labour in occipito—anterior vertex presentation, Acta Obstet. Gynecol. Scand. Suppl. 34:2.CrossRefGoogle Scholar
  45. 45.
    Lindgren, L., 1973, Biodynamics of the cervix during pregnancy and labor, in: The Biology of the Cervix (R. J. Blandau and K. S. Moghissi, eds.), p. 385, The University of Chicago Press, Chicago, Ill.Google Scholar
  46. 46.
    Karlson, S., 1944, A contribution to the methods of recording of the motility of the human uterus, Acta Obstet. Gynecol. Scand. Suppl. 24:4.CrossRefGoogle Scholar
  47. 47.
    Ingelman-Sundberg, A., Lindgren, L., and Ljungström, T., 1953, An electronic method for intrauterine measurements of pressure during labour, J. Obstet. Gynecol. Scand. 60:321.Google Scholar
  48. 48.
    Schwarcz, R. L., Strada-Saenz, G., Althabe, O., et al., 1969, Pressure exerted by uterine contractions on the head of the human fetus during labor, in: Perinatal Factors Affecting Human Development, Scientific Publication No. 185, p. 115, Panamerican Health Organization, Washington, D.C.Google Scholar
  49. 49.
    Lindgren, L., 1971, Der Biomechanismus der Zervixdilatation während der Geburt, Gynaekol. Rundsch. 2:237.CrossRefGoogle Scholar
  50. 50.
    Lindgren, L., 1977, The concept of pressure in biology and pressure transducers, Acta Obstet. Gynecol. Scand. Suppl. 66:87.PubMedCrossRefGoogle Scholar
  51. 51.
    Friedman, E. A., 1955, Graphic appraisal of labor: A study of 500 primigravida, Bull. Sloane Hosp. Women 1:42.Google Scholar
  52. 52.
    Friedman, E. A., 1978, Labor, Clinical Evaluation and Management, 2nd ed., Appleton—Century—Crofts, New York.Google Scholar
  53. 53.
    Ingelman-Sundberg, A., and Lindgren, L., 1950, Intrauterin elektrohysterografi under förlossning, Förh. Nord. Fören. Obstet. Gynek. 6 :e mote, p. 183.Google Scholar
  54. 54.
    Wolfs, G., and Rottinghuis, H., 1970, Electrical and mechanical activity of the human uterus during labour, Arch. Gynaekol. 208:373.CrossRefGoogle Scholar
  55. 55.
    Caldeyro-Barcia, R., Pose, S. V., and Alvarez, H., 1955, Normal and abnormal uterine contractility in labour, Triangle 2:41.Google Scholar
  56. 56.
    Holmlund, D., and Lindgren, L., 1968, The tension of an elastic and elastometric tube at the level of a body inside the tube when different forces are applied to the body, Scand. J. Urol. Nephrol Suppl. 1:27.Google Scholar
  57. 57.
    Malmström, T., 1957, The vacuum extractor and the parturiometer, Acta Obstet. Gynecol. Scand. Suppl. 36:3.CrossRefGoogle Scholar
  58. 58.
    Lindgren, L., 1961, Vacuumextraktorn (The vacuum extractor), Nord. Med. 65:541.PubMedGoogle Scholar
  59. 59.
    Lindgren, L., and Holmlund, D., 1969, Friction between the fetal head and uterine wall during normal labor and lower uterine spasm, Am. J. Obstet. Gynecol. 103:939.PubMedGoogle Scholar
  60. 60.
    Lindgren, L., and Holmlund, D., 1969, Friction between the foetal head and the cervix during labour, Acta Obstet. Gynecol. Scand. 48:479.PubMedCrossRefGoogle Scholar
  61. 61.
    Larks, S. D., 1960, Electrohysterography, Charles C Thomas, Springfield, Ill.Google Scholar
  62. 62.
    Lindgren, L., 1972, Is relaxation of the lower parts of the uterus possible during labour, in: Methoden der pharmakologischen Geburtserleichterung und Uterus Relaxation (H. Jung, ed.), p. 3, Georg Thieme, Stuttgart.Google Scholar
  63. 63.
    Friedman, E. A., 1966, Personal communication.Google Scholar
  64. 64.
    Borell, U., and Fernström, I., 1959, X—ray diagnosis of muscular spasm in the lower part of the uterus from the degree of moulding of the foetal head, Acta Obstet. Gynecol. Scand. 38:181.PubMedCrossRefGoogle Scholar
  65. 65.
    Lindgren, L., 1960, The causes of foetal head moulding in labour, Acta Obstet. Gynecol. Scand. 39:46.PubMedCrossRefGoogle Scholar
  66. 66.
    Lindgren, L., 1959, Die Eröffnung der Cervix bei Spasmus in unteren Uterinsegment, studiert mit intrauteriner Tokographie, Arch. Gynaekol. 191:467.CrossRefGoogle Scholar
  67. 67.
    Friedman, E. A., 1956, Labor in multipara, A graphicostatistical analysis, Obstet. Gynecol. 8:691.PubMedGoogle Scholar
  68. 68.
    Rucker, M. P., 1927, The treatment of contraction ring dystocia with adrenalin, Am. J. Obstet.. Gynecol. 14:609.Google Scholar
  69. 69.
    Rudolph, L., 1935, Constriction ring dystocia,J. Obstet. Gynaecol. Br. Emp. 42:992.CrossRefGoogle Scholar
  70. 70.
    Barlovatz, A., 1949, A new treatment for contraction ring of the cervix, Gynaecologia 128:145.PubMedGoogle Scholar
  71. 71.
    Friedman, E. A., 1966, Pathology of labor, in: Obstetrics (J. P. Greenhill, ed.), Saunders, Philadelphia and London.Google Scholar
  72. 72.
    Grospietsch, G., and Kuhn, W., 1975, Constriction ring dystokie, Eine Sonderform der uterinen Dystokie, Z. Geburtsh. Perinatol. 179:467.Google Scholar
  73. 73.
    Lindgren, L., 1960, Der Geburtsmechanismus bei hypotoner Wehenschväche, studiert mit intrauteriner Tokographie, Arch. Gynaekol. 192:308.CrossRefGoogle Scholar
  74. 74.
    Lindgren, L., and Ingelman-Sundberg, A., 1959, Der Geburtsmechanismus bei Uterusflimmern, studiert mit intrauteriner Tokographie, Arch. Gynaekol. 192:69.CrossRefGoogle Scholar
  75. 75.
    Lindgren, L., 1962, Ist die normale Uterusmotilität Voraussetzung zur Erzielung einer schnelleren Cervix—dilatation, Arch. Gynaekol. 197:494.CrossRefGoogle Scholar
  76. 76.
    Tokuyama, T., and Fujimoto, J., 1966, Cervilator, Summary published for 135th Meeting of Tokyo District Section of Japan Maternity Association.Google Scholar
  77. 77.
    Dahlgren, S., 1976, Shortening of labour, especially the period of dilatation with low frequency vibrations against cervix uteri, Linköpings University Medical Dissertations, No. 35.Google Scholar
  78. 78.
    Lindgren, L., 1961, Die Einwirkung der Grösse des Fetus auf die normale Eröffnung der Cervix, Arch. Gynaekol. 194:460.CrossRefGoogle Scholar
  79. 79.
    Lindgren, L., 1960, Die Eröffnungsperiode bei der Geburt aus Steisslage, studiert mit intrauteriner Tokographie, Arch. Gynaekol. 194:13.CrossRefGoogle Scholar
  80. 80.
    Lindgren, L., 1959, The effect of rupture of membranes upon the mechanism of labour, Acta Obstet. Gynecol. Scand. 38:211.PubMedCrossRefGoogle Scholar
  81. 81.
    Lindgren, L., 1960, Der Geburtsmechanismus während der normalen Austreibungsperiode, studiert mit intrauteriner Tokographie, Arch. Gynaekol. 192:314.CrossRefGoogle Scholar
  82. 82.
    Lindgren, L., Normann, P., and Viberg, L., 1958, Prolonged pregnancy, Acta Obstet. Gynecol. Scand. 37:482.PubMedCrossRefGoogle Scholar
  83. 83.
    Lindgren, L., 1977, The influence of pressure upon the fetal head during labour, Acta Obstet. Gynecol. Scand. 56:303.PubMedCrossRefGoogle Scholar
  84. 84.
    Gluck, L., 1974, Modern Perinatal Medicine, Year Book Medical Publishers, Chicago, Ill.Google Scholar
  85. 85.
    Garcia-Austt, E., 1969, Effects on uterine contractions on the EEG of the human fetus during labor, in: Perinatal Factors Affecting Human Development (R. Caldeyro-Barcia, moderator), Pan American Health Organization, Washington, D.C.Google Scholar
  86. 86.
    Jonsson, O., and Lindgren, L., 1965, Die Formveranderungen des Uterus Wuhrend des Mensruationscyclus, Arch. Gynaekol. 200:311.CrossRefGoogle Scholar
  87. 87.
    Gillespie, C. G., 1950, Principles of uterine growth in pregnancy, Am. J. Obstet. Gynecol. 59:949.PubMedGoogle Scholar

Copyright information

© Aubrey Milunsky, Emanuel A. Friedman, and Louis Gluck 1981

Authors and Affiliations

  • Lennart Lindgren
    • 1
  1. 1.Women’s ClinicSt. Erik’s HospitalStockholmSweden

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