TRANSVAGINAL ULTRASONOGRAPHIC CERVICAL LENGTH AND MODIFIED BISHOP’S SCORE: COMPARISON OF OUTCOME
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Keywords
Transvaginal Ultrasonographic Cervical Length, Modified Bishop’s Score, Outcome
Abstract
Transvaginal cervical length measurement has primarily focused on detecting cervical changes in women at risk for preterm delivery .Theoretically, transvaginal ultransonographic measurement of the cervix could represent a more accurate assessment of the cervix than digital examination because the supra vaginal portion of the cervix usually comprising about 50% of the cervical length is very difficulty to asses digitally in a closed cervix. Transvaginal cervical length was measured in mm with the standard longitudinal view of the cervix after asking patient to empty bladder using PHILIPS HD 5 machine .The image will be enlarged so that the cervix occupies at least two-third of the image and external os and internal os are well seen. Three consecutive cervical images will be obtained and three separate readings of cervicallength will be taken and then average cervical length in mm will be considered for the study. After sonography, modified Bishop’s score will be determined by digital examination. There was a significant difference in Induction to delivery interval distribution comparison between two groups. Transvaginal Ultrasonographic Cervical Length Group had higher percentage of Induction to delivery interval within 12 hrs compared to Modified Bishops Score.
References
2. Cole RA, Howie P W, Magnaughton M C. Elective induction of labour. A randomized prospective trial Lancet 1975; 1: 767-70
3. Sande H A, Tuveng J, Fontelien T A. Prospective randomized study of induction of labour. Int J Gynaecol Obstet 1983; 21: 333-6
4. Sue-A-Quan AK, Hannah M E, Cohen M M , Foster G A. Effect of labour induction on rates of still birth and Cesarean Section in post term pregnancies.CMAJ 1999; 160:1145-9
5. Andersen HF et al. Prediction of risk of preterm delivery by ultrasonographic measurement of cervical length. 1990;163: 859- 67
6. Heath VC, Souka AP, cervical length at 23 weeks of gestation: Prediction of spontaneous preterm delivery. 1998; 12: 12-7.
7. Peterson Brown S, Fisk NM, Edmonds DK, Rodeck CH.preinduction cervical assessment by Bishop score and transvaginal ultrasound. Eur J Obstst Gynecol Reprod Biol 1991;40:17-23.
8. Boozarjomehri F, Timor-Tritsch I, Chao CR, Fox HE. Transvaginal ultrasonographic evaluation of the cervix before labor: presence of cervical wedging is associated with shorter duration of induced labor. Am J Obstet Gynecol.1994; 171:1081-7.
9. Watson WJ, Stevens D,Welter S, Day D.Factors predicting successful labor induction. Obstst Gynecol 1996;88: 990-2.
10. Gonen R, Degani S, Ron A. prediction of successful induction of labor. Comparison of transvaginal ultrasonography and the Bishop Score. Eur J Ultrasound 1998;7:183-7.
11. Ware V, Raynor D. Transvaginal ultrasonographic cervical measurement as a predictor of successful labor induction. Am J Obstet Gynecol 2000; 182: 1030- 2.
12. Pandis et al . Preinduction sonographic measurement of cervical length in the prediction of successful induction of labor. Ultrasound Obstet Gynecol 2001; 623-628.
13. P Rozenberg et al. Comparison of digital and ultrasonographic examination of the cervix in predicting time interval from induction to delivery in women with a low bishop score. BJOG 2005; 112:192-196.
14. Sujata Chandra et al. Trans vaginal ultrasound and digital examination inpredicting successful labor induction. ACOG 2001;98: 102-106.
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Dr Anuradha K Sheshappanavar
Senior resident, VIMS, Ballari, Karnataka, India
Dr Snehalata V Dhavalagi
Government General Hospital, Shahapur, Yadgir, Karnataka, India
