Intrapartum transperineal ultrasound as a predictor of instrumentation difficulty with vacuum-assisted delivery in primiparous women

References

• Johanson RB, Menon BKV. Vacuum extraction versus forceps for assisted vaginal delivery. Cochrane Database Syst Rev 2010;CD000224
   PubMed Web of Science ®Google Scholar
• Majoko F, Gardener G. Trial of instrumental delivery in theatre versus immediate caesarean section for anticipated difficult assisted births. Cochrane Database Syst Rev 2012;CD005545
   PubMed Web of Science ®Google Scholar
• Murphy DJ, Liebling RE, Verity L, et al. Early maternal and neonatal morbidity associated with operative delivery in second stage of labour: a cohort study. Lancent 2001;13:1203–7
   Web of Science ®Google Scholar
• Contag SA, Clifton RG, Bloom SL, et al. Neonatal outcomes and operative vaginal delivery versus cesarean delivery. Am J Perinatol 2010;27:493–9
   PubMed Web of Science ®Google Scholar
• Eason E, Labrecque M, Wells G, Feldman P. Preventing perineal trauma during childbirth: a systematic review. Obstet Gynecol 2000;95:464–71
   PubMed Web of Science ®Google Scholar
• Sultan AH, Kamm MA, Bartram CI, Hudson CN. Anal sphincter trauma during instrumental delivery. Int J Gynaecol Obstet 1993;43:263–70
   PubMed Web of Science ®Google Scholar
• Chadwick LM, Pemberton PJ, Kurinczuk JJ. Neonatal subgaleal haematoma: associated risk factors, complications and outcome. J Paediatr Child Health 1996;32:228–32
   PubMed Web of Science ®Google Scholar
• Towner D, Castro MA, Eby-Wilkens E, Gilbert WM. Effect of mode of delivery in nulliparous women on neonatal intracranial injury. N Engl J Med 1999;341:1709–14
   PubMed Web of Science ®Google Scholar
• Bird GC. The importance of flexion in vacuum extractor delivery. Br J Obstet Gynaecol 1976;83:194–200
   PubMedGoogle Scholar
• Vacca A, Keirse MJNC. Instrumental vaginal delivery. In: Chalmers I, Enkin M, Keirse MJNC, eds. Effective care in pregnancy and childbirth. Oxford: Oxford University Press; 1989:1216–33
   Google Scholar
• Mola GD, Amoa AB, Edilyong J. Factors associated with success or failure in trials of vacuum extraction. Aust N Z J Obstet Gynaecol 2002;42:35–9
   PubMed Web of Science ®Google Scholar
• Sherer DM, Miodovnik M, Bradley KS, Langer O. Intrapartum fetal head position I: comparison between transvaginal digital examination and transabdominal ultrasound assessment during the active stage of labor. Ultrasound Obstet Gynecol 2002;19:258–62
   PubMed Web of Science ®Google Scholar
• Akmal S, Kametas N, Tsoi E, et al. Comparison of transvaginal digital examination with intrapartum sonography to determine fetal head position before instrumental delivery. Ultrasound Obstet Gynecol 2003;21:437–40
   PubMed Web of Science ®Google Scholar
• Souka AP, Haritos T, Basayiannis K, et al. Intrapartum ultrasound for the examination of the fetal head position in normal and obstructed labor. J Matern Fetal Neonatal Med 2003;13:59–63
   PubMedGoogle Scholar
• Henrich W, Dudenhausen J, Fuchs I, et al. Intrapartum translabial ultrasound (ITU): sonographic landmarks and correlation with successful vacuum extraction. Ultrasound Obstet Gynecol 2006;28:753–60
   PubMed Web of Science ®Google Scholar
• Yeo L, Romero R. Sonographic evaluation in the second stage of labor to improve the assessment of labor progress and its outcome. Ultrasound Obstet Gynecol 2009;33:253–8
   PubMed Web of Science ®Google Scholar
• Barbera AF, Pombar X, Perugino G, et al. A new method to assess fetal head descent in labor with transperineal ultrasound. Ultrasound Obstet Gynecol 2009;33:313–19
   PubMed Web of Science ®Google Scholar
• Dietz HP, Lanzarone V. Measuring engagement of the fetal head: validity and reproducibility of a new ultrasound technique. Ultrasound Obstet Gynecol 2005;25:165–8
   PubMed Web of Science ®Google Scholar
• Ghi T, Farina A, Pedrazzi A, et al. Diagnosis of station and rotation of the fetal head in the second stage fetal head descent and mode of delivery. Obstet Gynecol 2009;33:331–6
   Web of Science ®Google Scholar
• Eggebo TM, Gjessing LK, Heien C, et al. Prediction of labor and delivery by transperineal ultrasound in pregnancies with prelabor rupture of membranes at term. Ultrasound Obstet Gynecol 2006;27:387–91
   PubMed Web of Science ®Google Scholar
• Torkildsen EA, Salvesen KA, Eggebo TM. Agreement between 2D and 3D transperineal ultrasound methods in assessing fetal head descent in the first stage of labor. Ultrasound Obstet Gynecol 2012;39:310–15
   PubMed Web of Science ®Google Scholar
• Tutschek B, Braun T, Chantraine F, Henrich W. A study of progress of labour using intrapartum translabial ultrasound, assessing head station, direction, and angle of descent. BJOG 2011;118:62–9
   PubMed Web of Science ®Google Scholar
• Kalache KD, Duckelmann AM, Michaelis SA, et al. Transperineal ultrasound imaging in prolonged second stage of labor with occipitoanterior presenting fetuses: how well does the ‘angle of progression’ predict the mode of delivery? Ultrasound Obstet Gynecol 2009;33:326–30
   PubMed Web of Science ®Google Scholar
• Duckelmann AM, Bamberg C, Michaelis SA, et al. Measurement of fetal head descent using the ‘angle of progression’ on transperineal ultrasound imaging is reliable regardless of fetal head station or ultrasound expertise. Ultrasound Obstet Gynecol 2010;35:216–22
   PubMed Web of Science ®Google Scholar
• Molina FS, Nicolaides KH. Ultrasound in labor and delivery. Fetal Diagn Ther 2010;27:61–7
   PubMed Web of Science ®Google Scholar
• Torkildsen EA, Salvesen KA, Eggebo TM. Prediction of delivery mode with transperineal ultrasound in women with prolonged first stage of labor. Ultrasound Obstet Gynecol 2011;37:702–8
   PubMed Web of Science ®Google Scholar
• Youssef A, Bellussi F, Maroni E, et al. Ultrasound in labor: is it time for a more simplified approach? Ultrasound Obstet Gynecol 2012. [Epub ahead of print]. doi:10.1002/uog.12373
   Google Scholar
• Youssef A, Ghi T, Awad EE, et al. Ultrasound in labor: a caregiver’s perspective. Ultrasound Obstet Gynecol 2013;41:469–70
   PubMed Web of Science ®Google Scholar
• Gilboa Y, Kivilevitch Z, Spira M, et al. Head progression distance in prolonged second stage of labor: relationship with mode of delivery and fetal head station. Ultrasound Obstet Gynecol 2013;41:436–41
   PubMed Web of Science ®Google Scholar
• Tutschek B, Braun T, Chantraine F, Henrich W. Quantification of direction and fetal head descent. Ultrasound Obstet Gynecol 2013;41:99–100
   PubMed Web of Science ®Google Scholar
• Ghi T, Youssef A, Maroni E, Arcangeli T, et al. Intrapartum transperineal ultrasound assessment of fetal head progression in active second stage of labor and mode of delivery. Ultrasound Obstet Gynecol 2013;41:430–5
   PubMed Web of Science ®Google Scholar
• Youssef A, Maroni E, Ragusa A, et al. Fetal head-symphysis distance: a simple and reliable ultrasound index of fetal head station in labor. Ultrasound Obstet Gynecol 2013;41:419–24
   PubMed Web of Science ®Google Scholar
• ACOG practice bulletin. Bulletin number 17, June 2000. Operative vaginal delivery. Compendium of selected publications. Washington, DC: ACOG; 2007
   Google Scholar
• Barbera AF, Imani F, Becker T, et al. Anatomic relationship between the pubic symphysis and ischial spines and its clinical significance in the assessment of fetal head engagement and station during labor. Ultrasound Obstet Gynecol 2009;33:320325
   Web of Science ®Google Scholar
• Vacca A. Vacuum-assisted delivery: an analysis of traction force and maternal and neonatal outcome. Aust N Z J Obstet Gynaecol 2006;46:124–7
   PubMed Web of Science ®Google Scholar
• Lau WL, Leung WC, Chin R. What is the best transperineal ultrasound parameter for predicting success of vacuum extraction. Ultrasound Obstet Gynecol 2009;33:735–6
   PubMed Web of Science ®Google Scholar
• Cunningham FG, Gant NF, Leveno KJ, et al. Mechanisms of normal labor. In: Cunningham FG, MacDonald PC, Gant NF, et al, eds. Williams obstetrics. 21st ed. New York (NY): McGraw-Hill; 2001:291–307
   Google Scholar
• Barbera AF, Imani F, Becker T, et al. Anatomic relationship between the pubic symphysis and ischial spines and its clinical significance in the assessment of fetal head engagement and station during labor. Ultrasound Obstet Gynecol 2009;33:320–5
   PubMed Web of Science ®Google Scholar