258: Nulliparous women in the second stage of labor: changes in mode of delivery over the past 10 years

Objective The objective of this study was to assess the association between the angle of progression (AoP) measured by transperineal ultrasound and mode of delivery and duration of the second stage. Study Design This is a prospective observational study of nulliparous women with a singleton gestation at term in which serial transperineal ultrasound examinations were obtained during the second stage of labor. Multivariable logistic regression and adjusted survival models were used for the analysis. Results A total of 137 patients were included in the analysis and median AoP for the study group was 153 degrees. The adjusted odds ratio (aOR) of requiring an operative delivery was 2.6 times higher for those patients who had an AoP < 153 degrees and the aOR of requiring a cesarean delivery was almost six times higher when compared with those patients who had an AoP ≥ 153 degrees (95% confidence interval [CI]: 1.0, 6.2; p = 0.04; aOR: 5.8, 95% CI: 1.2–28.3; p = 0.03, respectively). Those patients with an AoP < 153 degrees were at a higher hazard of staying pregnant longer (adjusted hazard ratio: 1.8, 95% CI: 1.2–2.8, p = 0.005). Conclusion The AoP has the potential to predict spontaneous vaginal delivery and the duration of the second stage of labor which may be useful in counseling patients and managing their labor.

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A Randomized Control Trial of Bupivacaine and Fentanyl versus Fentanyl-only for Epidural Analgesia during the Second Stage of Labor

Anesthesiology ◽

10.1097/aln.0000000000000454 ◽

2015 ◽

Vol 122 (1) ◽

pp. 172-177 ◽

Cited By ~ 8

Author(s):

Margaret G. Craig ◽

Erica N. Grant ◽

Weike Tao ◽

Donald D. McIntire ◽

Kenneth J. Leveno

Keyword(s):

Mode Of Delivery ◽

Group Versus ◽

Postnatal Period ◽

Neonatal Outcomes ◽

Motor Blockade ◽

Second Stage Of Labor ◽

Second Stage ◽

Nulliparous Women ◽

Epidural Bupivacaine ◽

Second Stage Labor

Abstract Background: The purpose of this prospective, double-blinded, parallel-arm, randomized trial was to examine the effects of epidural bupivacaine on the length of the second stage of labor in nulliparous women. Methods: The authors assessed length of second-stage labor, degree of motor blockade, mode of delivery, and visual analog scores in 310 nulliparous women with labor epidurals randomized to receive either: (1) 0.125% bupivacaine and fentanyl 2 μg/ml or (2) fentanyl 10 μg/ml alone via epidural using double blinding. Results: The median duration of the second stage was 75 min (41, 128) in the bupivacaine/fentanyl group versus 73 min (42, 120) in the fentanyl-only group (P = 0.17) with a median difference of 6.0 (95% CI, −6.0 to 18.0). Furthermore, there was no difference in degree of motor blockade, incidence of operative delivery, visual analog scores, or neonatal outcomes between the two groups. No adverse events were reported. Conclusions: Use of epidural bupivacaine/fentanyl or a fentanyl-only infusion during the second stage of labor did not affect the duration of the second stage of labor, degree of motor blockade, mode of delivery, pain relief, and maternal or neonatal outcomes. However, in the fentanyl-only infusion group, there was a fivefold increase in opioid exposure to the fetus with unknown effects on neurobehavior, an outcome not assessed beyond the immediate postnatal period in this study.

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Contraction of the levator ani muscle during Valsalva maneuver (coactivation) is associated with a longer active second stage of labor in nulliparous women undergoing induction of labor

American Journal of Obstetrics and Gynecology ◽

10.1016/j.ajog.2018.10.013 ◽

2019 ◽

Vol 220 (2) ◽

pp. 189.e1-189.e8 ◽

Cited By ~ 9

Author(s):

Rasha Kamel ◽

Elisa Montaguti ◽

Kypros H. Nicolaides ◽

Mahmoud Soliman ◽

Maria Gaia Dodaro ◽

...

Keyword(s):

Valsalva Maneuver ◽

Levator Ani ◽

Induction Of Labor ◽

Levator Ani Muscle ◽

Second Stage Of Labor ◽

Second Stage ◽

Nulliparous Women

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Prolonged interpregnancy interval: how does it impact the length of second stage of labor?

Journal of Perinatal Medicine ◽

10.1515/jpm-2020-0171 ◽

2020 ◽

Vol 48 (8) ◽

pp. 811-818

Author(s):

Nicole B. Kurata ◽

Keith K. Ogasawara ◽

Kathryn L. Pedula ◽

William A. Goh

Keyword(s):

Perinatal Outcomes ◽

Kaiser Permanente ◽

Second Stage Of Labor ◽

Second Stage ◽

Labor Duration ◽

Nulliparous Women ◽

Multiparous Women ◽

Comparison Groups ◽

Maternal And Neonatal Outcomes ◽

Interpregnancy Intervals

AbstractObjectivesShort interpregnancy intervals (IPI) have been linked to multiple adverse maternal and neonatal outcomes, but less is known about prolonged IPI, including its relationship with labor progression. The objective of the study was to investigate whether prolonged IPIs are associated with longer second stages of labor.MethodsA perinatal database from Kaiser Permanente Hawaii was used to identify 442 women with a prolonged IPI ≥60 months. Four hundred forty two nulliparous and 442 multiparous women with an IPI 18–59 months were selected as comparison groups. The primary outcome was second stage of labor duration. Perinatal outcomes were compared between these groups.ResultsThe median (IQR) second stage of labor duration was 76 (38–141) min in nulliparous women, 15 (9–28) min in multiparous women, and 18 (10–38) min in women with a prolonged IPI (p<0.0001). Pairwise comparisons revealed significantly different second stage duration in the nulliparous group compared to both the multiparous and prolonged IPI groups, but no difference between the multiparous and prolonged IPI groups. There was a significant association with the length of the IPI; median duration 30 (12–61) min for IPI ≥120 months vs. 15 (9–27) min for IPI 18–59 months and 16 (9–31) min for IPI 60–119 months (p=0.0014).ConclusionsThe second stage of labor did not differ in women with a prolonged IPI compared to normal multiparous women. Women with an IPI ≥120 months had a significantly longer second stage vs. those with a shorter IPI. These findings provide a better understanding of labor progression in pregnancies with a prolonged IPI.

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Upright kneeling position during second stage of labor: a pilot study

International Journal of Reproduction Contraception Obstetrics and Gynecology ◽

10.18203/2320-1770.ijrcog20175930 ◽

2018 ◽

Vol 7 (2) ◽

pp. 401 ◽

Cited By ~ 1

Author(s):

Anjali Dabral ◽

Pallavi Pawar ◽

Rekha Bharti ◽

Archana Kumari ◽

Achla Batra ◽

...

Keyword(s):

Tertiary Care ◽

Mode Of Delivery ◽

Admission Rate ◽

North India ◽

Care Hospital ◽

Apgar Scores ◽

Second Stage Of Labor ◽

Second Stage ◽

Perineal Tears ◽

Second Stage Of Labour

Background: Women delivering in upright position have shorter labour due to efficient and stronger contractions with faster descent of foetal head. The present study aimed to find out effect of upright kneeling position in the second stage of labour on maternal and foetal outcome and assess patients’ satisfaction.Methods: The study was carried out in a tertiary care hospital of North India from October 2012 to February 2014. Low risk women admitted in early labour were divided into two groups, women delivering in kneeling position and in supine position. The outcome measures studied were, duration of second stage of labour, mode of delivery, 2nd degree perineal tears, Apgar scores at 5 minutes, NICU admission rate and patient satisfaction.Results: The mean duration of second stage of labour in kneeling group was shorter by 14.901 minutes. The rate of vaginal delivery was comparable for both primigravidas and multigravida in kneeling and supine groups, RR: 2.275, 95% CI (0.7872-6.5831) and RR: 1.633, 95% CI (0.393-6.775). Primigravidas had more 2nd degree perineal tears in kneeling group as compared to supine, RR 4.191, 95% CI (1.54 to 11.41). No difference in Apgar scores >7 at 5 minutes was observed in both groups, however, significantly lesser babies in kneeling group were admitted in NICU, RR 0.246, 95% CI (0.079 to 0.761). There was no difference on comparing satisfaction scores of primigravidas and multigravida in both supine and kneeling position.Conclusions: Kneeling position reduces the duration of second stage of labour and NICU admissions.

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