Normal and Pathological Values of Postvoiding Residual Volume in Early Postpartum Period and Their Predisposing Factors (PAREZ)

Comenius University

Status: Terminated

Conditions: Urinary Retention

Treatments: Diagnostic Test: Ultrasound measurement of residual volume in the urinary bladder; Diagnostic Test: Questionnaire

Study type: Observational

Funder types: Other

Identifiers

NCT03958279

EC/002/2018/UNBRuzinov

Details and patient eligibility

About

Aim of this study is to asses post voiding residual volume by ultrasound scan 3th day after delivery with consecutive scan after 6 weeks, and determination of data dispersion among the population of primiparas. In women with excessive retention (+2SD), risk factors such as duration of labour, use of epidural analgesia, instrumental delivery, maternal birth injury and weight of the newborn will be noted down.

Full description

Pregnancy itself and vaginal delivery are well known risk factors for pelvic floor dysfunction. The rise in progesterone related to pregnancy has an inhibitory effect on bladder smooth muscle - decreased smooth muscle tonus in lower urinary tract. Weight and pressure of pregnant uterus and loosening of some of the pelvic ligaments changes the statics of pelvic floor. In addition, delivery itself influence lower urinary tract; an overdistension of urinary bladder can occur easily, also as oedema of urethra or urethral hinge apparatus injury during "crowning" of the fetal head.

All of these factors can affect consecutive function of lower urinary tract right after delivery. It is known that in 1,5% of women giving birth, symptomatic urinary retention develop in early postpartum period, with necessity of insertion of an indwelling catheter. Discussed risk factors are: epidural analgesia, instrumental delivery and primiparity. The investigators can assume that every woman in early postpartum period has (to some extend) even in normal circumstances postvoiding residual volume. There is few evidence in a literature about this postpartum residual volume and its predisposing factors.

Postvoiding residual volume can be risk factor for postpartum urinary infection, which forms second largest part in infectious morbidity of women. By determination of risk factors (for increased post voiding residual volume) the investigators could narrow the group of women which necessitate increased attention in postpartal monitoring.

Enrollment: 930 patients

Sex: Female

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• The investigators involve every primipara giving birth at 2nd Department of Obstetrics and Gynecology, University Hospital Bratislava and Comenius University, Bratislava, Slovak Republic in a period of two years

Exclusion criteria

• Unwilling to participate
• Minors (under 18 years old)
• Foetus mortus or perinatal death of the newborn
• Admission of the newborn to the ICU
• Unfamiliar with slovak language
• Multiple pregnancy

Trial design

930 participants in 1 patient group

primipara giving birth

Description:

The investigators involve every primipara giving birth in a period of two years. Exclusion criteria: * a) Unwilling to participate * b) Minors (under 18 years old) * c) Foetus mortus or perinatal death of the newborn * d) Admission of the newborn to the ICU * e) Unfamiliar with slovak language * f) Multiple pregnancy

Treatment:

Diagnostic Test: Questionnaire

Diagnostic Test: Ultrasound measurement of residual volume in the urinary bladder