PMID: 11926640Apr 3, 2002Paper

Risk factors for preterm delivery in patients demonstrating sonographic evidence of premature dilation of the internal os, prolapse of the membranes in the endocervical canal and shortening of the distal cervical segment by second trimester ultrasound

The Australian & New Zealand Journal of Obstetrics & Gynaecology
B N BenhamO A Rust

Abstract

To investigate the outcomes and risk factors associated with the second trimester sonographic findings of premature dilation of the internal cervical os, prolapse of the membranes into the endocervical canal and shortening of the distal segment. Retrospective chart review to identify patients who met the following criteria: (i) gestational age between 16 and 24 weeks; (ii) a vaginal probe ultrasound documenting dilatation of the internal os, prolapsed membranes into the endocervical canal but not extending beyond the external os, and a shortened distal cervix; and (iii) no evidence of increased uterine activity Sonographic measurements obtained included: (i) the width of the internal os dilation; (ii) the depth of membranes prolapsed into endocervix (funneling); (iii) the distal cervical length; and (iv) the total cervical length. Patients were stratified into two groups according to gestational age at delivery: the preterm group (< 34 weeks) and the near-term group (> or = 34 weeks). Thirty-seven patients had complete records for analysis and their pregnancies resulted in 47 live births. Eighteen patients were stratified to the near term group and 19 were stratified to the preterm group. There were no stillborn infants and 10 ...Continue Reading

References

Feb 1, 1991·Journal of Clinical Ultrasound : JCU·H F Andersen
Aug 1, 1996·American Journal of Obstetrics and Gynecology·E R GuzmanK Kappy
Mar 1, 1997·American Journal of Obstetrics and Gynecology·E R GuzmanM L Hanley
Nov 20, 1998·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·E R GuzmanK Gipson
Apr 3, 1999·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·I M HoesliW Holzgreve
Apr 24, 1999·Obstetrics and Gynecology·K HartmannJ L Granados
Aug 24, 1999·American Journal of Obstetrics and Gynecology·M Kurup, J W Goldkrand

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Citations

Sep 21, 2005·The Australian & New Zealand Journal of Obstetrics & Gynaecology·Suzanne van RijswijkGus Dekker
Aug 28, 2003·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·H HonestK S Khan
Nov 18, 2008·The Journal of Obstetrics and Gynaecology Research·Makoto KanaiIkuo Konishi
Jan 8, 2004·American Journal of Obstetrics and Gynecology·Timea Belej-RakMary E Hannah

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