Clinical trial NCT05341076: Labor Scale Versus WHO Partograph for Management of Labor (ScaLP)
Official title: Labor Scale Versus WHO Partograph for Management of Spontaneous Labor in Primigravidae (ScaLP): A Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Dystocia
Keywords: Labor scale
Partograph
Spontaneous labor
Primigravida
Lead sponsor: Assiut University
Sponsor class: OTHER
First posted: 2022-04-22
Enrollment: 206
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The current study aims at evaluating the impact of the implementation of the labor scale, in comparison to the standard WHO partograph, in the management of primiparous women, including CD rate, maternal and neonatal outcomes of labor.

Detailed description: Since the procedure was first introduced to clinical practice, Cesarean delivery (CD) has significantly contributed to peripartum maternal and fetal safety when appropriately indicated. Nevertheless, CD rate has significantly increased over the last two decades without parallel improvement in maternal or neonatal outcomes. Globally, one out of three pregnancies would be delivered by CD, resulting in growing surgical, obstetric and financial burden. Over years, long-term sequelae of current CD rate have become evident such as increased incidence of placenta accreta spectrum and exponential rise in CD trend, since 90% of women who had CD are susceptible to CD in future pregnancies. These concerns have triggered a global act to control CD rates within the margins of safe obstetric practice.

The most common indication of CD is labor dystocia. However, the definition of labor dystocia is inconsistent, and standardization of diagnosis has been heavily investigated. The WHO partograph was established at the end of the last century to serve as a tool to recognize labor dystocia and has been universally accepted to verify CD decision However, a cochrane review by Lavender et al. revealed that role of WHO partograph, in improving clinical outcomes, is lacking. In addition, there is no evidence that any published modification of the current partograph is superior to another. The "labor scale," a novel alternative to the classic partograph, was first introduced to literature in 2014. The tool was designed based on evidence-based guidelines and integrates both diagnosis and interventions to manage labor dystocia. Initial data showed that labor scale contributed to decreased incidence of CD and oxytocin administration. However, further studies are required to verify these results.

Eligibility criteria: Inclusion Criteria Pregnant women aged 18 to 45 years old with the following criteria: nulliparous, had been pregnant for 37 to 41 weeks with a singleton viable fetus, and vertex presented, and with estimated fetal weights between 2,500 and 4,500 g.

Exclusion Criteria Women with following criteria will be excluded: significant maternal medical or surgical comorbidity, previous uterine scar

Primary outcomes:
measure: Successful vaginal delivery (reporting of whether labor ends in vaginal delivery or Cesarean Section. In case of CS, the indication will be reported)
timeFrame: Duration of labor (maximum 24 hours from onset of labor)
Secondary outcomes:
measure: Intrapartum maternal birth injuries
timeFrame: Duration of labour and hospital stay (anticipated duration: 72 hours)
measure: Primary postpartum hemorrhage
timeFrame: Within 24 hours of delivery
measure: Maternal fever/postpartum infections
timeFrame: Within 24 hours of delivery
measure: Intrapartum fetal distress
timeFrame: Duration of labor (maximum 24 hours)
measure: Birth injuries of the newborn
timeFrame: The length of neonatal hospital stay (anticipated duration: 72 hours)
measure: Neonatal distress "asphyxia"
timeFrame: The length of stay in hospital/neonatal intensive care unit (anticipated duration: 72 hours)
measure: Duration of labor in hours
timeFrame: Duration of labor (maximum 24 hours)
measure: Incidence of oxytocin use
timeFrame: Duration of labor (maximum duration: 24 hours)
measure: Incidence of instrumental delivery
timeFrame: Duration of labor (maximum duration: 24 hours)
Other outcomes:
Locations:
city: Aswan
country: Egypt
facility: Aswan Faculty of Medicine
Study officials:
References:
citation: American College of Obstetricians and Gynecologists (College); Society for Maternal-Fetal Medicine; Caughey AB, Cahill AG, Guise JM, Rouse DJ. Safe prevention of the primary cesarean delivery. Am J Obstet Gynecol. 2014 Mar;210(3):179-93. doi: 10.1016/j.ajog.2014.01.026.
citation: Hamilton BE, Hoyert DL, Martin JA, Strobino DM, Guyer B. Annual summary of vital statistics: 2010-2011. Pediatrics. 2013 Mar;131(3):548-58. doi: 10.1542/peds.2012-3769. Epub 2013 Feb 11.
citation: Gregory KD, Jackson S, Korst L, Fridman M. Cesarean versus vaginal delivery: whose risks? Whose benefits? Am J Perinatol. 2012 Jan;29(1):7-18. doi: 10.1055/s-0031-1285829. Epub 2011 Aug 10.
citation: Neal JL, Ryan SL, Lowe NK, Schorn MN, Buxton M, Holley SL, Wilson-Liverman AM. Labor Dystocia: Uses of Related Nomenclature. J Midwifery Womens Health. 2015 Sep-Oct;60(5):485-98. doi: 10.1111/jmwh.12355.
citation: HealthyPeople.gov. Search the Data | Healthy People 2020 [Internet]. 2017 [cited 2022 Mar 28]. p. 1-6. Available from: https://www.healthypeople.gov/2020/data-search/Search-the-Data#objid=4660;
citation: Tolba SM, Ali SS, Mohammed AM, Michael AK, Abbas AM, Nassr AA, Shazly SA. Management of Spontaneous Labor in Primigravidae: Labor Scale versus WHO Partograph (SLiP Trial) Randomized Controlled Trial. Am J Perinatol. 2018 Jan;35(1):48-54. doi: 10.1055/s-0037-1605575. Epub 2017 Aug 8.
citation: Shazly SA, Embaby LH, Ali SS. The labour scale--assessment of the validity of a novel labour chart: a pilot study. Aust N Z J Obstet Gynaecol. 2014 Aug;54(4):322-6. doi: 10.1111/ajo.12209. Epub 2014 May 17.
citation: Lavender T, Cuthbert A, Smyth RM. Effect of partograph use on outcomes for women in spontaneous labour at term and their babies. Cochrane Database Syst Rev. 2018 Aug 6;8(8):CD005461. doi: 10.1002/14651858.CD005461.pub5.