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Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System
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Postpartum urinary retention: Absolute risk prediction model.

Marta Barba1, Matteo Frigerio1, Stefano Manodoro2

  • 1University of Milano-Bicocca, ASST Monza, San Gerardo Hospital, Monza, Italy.

Lower Urinary Tract Symptoms
|October 29, 2020
PubMed
Summary
This summary is machine-generated.

Postpartum urinary retention (PPUR) risk factors include non-Caucasian ethnicity, nulliparity, and low BMI as minor factors. Major risks for PPUR are epidural analgesia, meconium-stained fluid, operative vaginal birth, prolonged pushing, and perineal tears.

Keywords:
epidemiologynomogrampostpartum urinary retentionrisk factorsvoiding dysfunction

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Area of Science:

  • Obstetrics and Gynecology
  • Urology
  • Perinatal Medicine

Background:

  • Postpartum urinary retention (PPUR) is a common complication affecting women after childbirth.
  • It is defined as the inability to void within 6 hours postpartum or after catheter removal following cesarean delivery.
  • Untreated PPUR can lead to severe complications such as infections, chronic voiding dysfunction, and renal failure.

Purpose of the Study:

  • To determine the incidence of postpartum urinary retention (PPUR).
  • To identify and assess clinical factors that predict the occurrence of PPUR.
  • To develop a predictive score and nomogram for calculating PPUR risk.

Main Methods:

  • A retrospective cohort study was conducted analyzing delivery data from January 2011 to December 2017.
  • Multivariate logistic regression analysis was employed to identify risk factors for PPUR.
  • A predictive score and a nomogram were developed based on the identified risk factors.

Main Results:

  • Minor risk factors for PPUR (OR < 2) included non-Caucasian ethnicity (OR=1.46), nulliparity (OR=1.47), and BMI < 30 kg/m² (OR=1.54).
  • Major risk factors for PPUR (OR > 2) included epidural analgesia (OR=3.93), meconium-stained amniotic fluid (OR=2.07), nonoperative vaginal birth (OR=6.25), vacuum extraction (OR=8.80), prolonged pushing stage (OR=3.00), and perineal tear (OR=2.87).
  • The predictive model achieved an AUC of 0.84, and a nomogram was created for risk calculation, suggesting a 116-point cutoff for identifying high-risk patients.

Conclusions:

  • Non-Caucasian ethnicity, nulliparity, and BMI < 30 kg/m² are identified as minor independent risk factors for PPUR.
  • Epidural analgesia, meconium-stained amniotic fluid, nonoperative vaginal birth, vacuum extraction, prolonged pushing stage, and perineal tear are major independent risk factors for PPUR.
  • The developed nomogram aids in calculating absolute PPUR risk and identifying high-risk individuals for closer monitoring.