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Original Article

Relationship between endocervical canal length between 15–24 weeks gestation and obstetric history

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Pages 269-272 | Received 14 Apr 1998, Accepted 06 Jul 1998, Published online: 07 Jul 2009

References

  • Iams JD, Johnson FF, Sonek J, Sachs L, Gebauer C, Samuels P. Cervical competence as a continuum: A study of ultrasonographic cervical length and obstetric performance. Am J Ostet Gynecol 1995; 172: 1097–106
  • Iams JD, Goldenberg RL, Meis PJ, Mercer BM, Moawad A, Das A, Thom E, McNellis D, Cooper RL, Johnson F, Roberts JM. National Institute of Child Health and Human Development Maternal Fetal Medicine Unit Network: The length of the cervix and the risk of spontaneous premature delivery. N Engl J Med 1996; 334: 567–572
  • Guzman ER, Rosenberg JC, Houlihan C, Ivan J, Waldron R, Knuppel R. A new method using vaginal ultrasound and transfundal pressure to evaluate the asymptomatic incompetent cervix. Obstet Gynecol 1994; 83: 248–252
  • Guzman ER, Vintzileos AM, McLean DA, Martins ME, Benito CW, Hanley ML. The natural history of a positive response to transfundal pressure in women at risk for cervical incompetence. Am J Obstet Gynecol 1997; 176: 634–638
  • Guzman ER, Pisatowski DM, Vintzileos AM, Benito CW, Hanley ML, Ananth CV. A comparison of ultrasonographically detected cervical changes in response to transfundal pressure coughing and standing in predicting cervical incompetence. Am J Obstet Gynecol 1997; 177: 660–665
  • Buckingham JC, Buethe RA, Danforth DN. Collagen-muscle ratio in clinically normal and clinically incompetent cervices. Obstet Gynecol 1965; 91: 232–237

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