Lower urinary tract symptoms one year after delivery: a comparison of vaginal delivery versus caesarean section

Oliveira B1, Coimbra J2, Barros P1, Dores M1, Cabrita M1, Rosa G1, Coutinho A1

Research Type

Clinical

Abstract Category

Female Lower Urinary Tract Symptoms (LUTS) / Voiding Dysfunction

Abstract 103
Open Discussion ePosters
Scientific Open Discussion Session 7
Thursday 8th September 2022
12:55 - 13:00 (ePoster Station 3)
Exhibition Hall
Pelvic Floor Female Questionnaire Quality of Life (QoL)
1. Centro Hospitalar Univeristário do Algarve - Urology Department, 2. Centro Hospitalar Univeristário do Algarve - Obstetrics and Gynaecology Department
Online
Presenter
Links

Poster

Abstract

Hypothesis / aims of study
Pregnancy and childbirth are risk factors for the development of lower urinary tract symptoms ( LUTS).
LUTS after delivery have attracted substantial attention in recent years because of their high prevalence and detrimental effects on health-related quality of life.
The aims of this study were to:  investigate the prevalence of LUTS one year after the first delivery,  determine the potential risk factors  and to compare  the prevalence of LUTS for different modes of delivery, analyzing the social and hygienic discomfort associated with micturition complaints.
Study design, materials and methods
This cross- sectional study was conducted in a Tertiary Hospital and was approved by the Research Ethics Committee if the Institution.
The eligibility criteria were primiparous women at ≥36 weeks gestation with no history of UI. Women who were not able to understand the questions or under the age of 18 were excluded from the study.
Exclusion criteria were previous urogynecological surgery, urogynecological malformations, diabetes mellitus, and neurological disorders
International Consultation on Incontinence Questionnaire Female Lower Urinary tract Symptoms Module (ICIQ-FLUTS) was administered consecutively 1 year after delivery.
No intervention was implemented. 
The primary outcome was women’s self-reported occurrence of LUTS 12 months after giving birth. The impact of LUTS experienced by women on their daily activities and psychological well-being were secondary outcomes.
Demographic data of the participants included maternal age, type of job( physical or mental), smoking, health-related problems during pregnancy, delivery mode, neonatal weight, length and Head circumference.
All statistical analyses were performed using SPSS version 27. Data was analyzed by descriptive statistics, Chi-squared tests, Fisher's exact test and logistic regression
Results
In all, 333 pregnant women were enrolled in the study and asked to complete the questionnaire one year after delivery, 119 were not eligible (11, 5% were pregnant again). While 214 completed the questionnaire 1 year after birth, corresponding to a response rate of 64.26%
Mean maternal age was 28, 74 ± 5.46 years and 8.4% of women were smokers. As for the type of delivery, about half (43.5%) were vaginal delivery ( VD), 19.2% vacuum assisted and 1.9% forceps assisted.
Cesarean delivery (CD) was associated with the presence of women health problems during pregnancy (50%, p=0,004) such as hypertension, gestational diabetes and others 
Storage symptoms were more common than voiding symptoms, the most commonly reported  LUTS were nocturia (45.1%) , followed by urgency (20.7%),9.4%em had urge urinary incontinence and 23.5% had some degree of stress urinary incontinence (11.7% mild)
Regarding perineal state after vaginal delivery, 27 women had ≥2nd degree tear, 13 of them presenting urinary incontinence.

The prevalence of LUTS according to the delivery mode a year after delivery is shown in Figure 1 and 2.
Interpretation of results
The incidence of nocturia and urgency, was significantly lower in the VD group than the CD (P =0.014 and P= 0,02 respectively). The incidence of nocturia and urgency, was significantly lower in the VD group than the CD (P =0.014 and P= 0,02 respectively). There were no significant differences between the groups in terms of urinary frequency
Urgency was referred to as the most severe and impacting symptom in women with cesarean section with a frequency of 30.3% vs. 15.2% in vaginal deliveries. Despite this, the frequency of urge urinary incontinence is higher in vaginal delivery but without a statistically significant difference.



Compared women with normal vaginal delivery, women with operative vaginal delivery had a higher prevalence of UI and urgency.

The extent to which women were bothered by each symptom, no bother and minor bother were the most common responses reported 

SUI, nocturia, and urgency were  most frequently considered moderate or severe bother nevertheless no association was found between the severity of LUTS and the degree of botherness.

Incontinence was more frequent in the three subtypes (urgency, stress and mixed) in the VD group with significant differences only when considering stress incontinence (p=0.011) with  severe incontinence in only 4.3% of cases.
In the literature, recent studies have shown the protective effect of CD on the pelvic floor. VD is an independent risk factor for damage to the pelvic floor muscles after the fetus passing through the soft birth canal can directly damage the pelvic floor muscles.


Our results are in line with the findings from a number of previous studies; low degree of perineal injury, birth weight, length and head circumference seem to be of minor importance for the incidence of UI postpartum.

 As LUTS can have a negative impact on women’s psychological wellbeing, it is important that they are encouraged to seek health care. It should be acknowledged that this is not an inevitable and acceptable consequence of childbirth



Asking women to recall symptoms is subject to bias, and may have led to over- or underestimation. Information on pelvic floor exercises would have been interesting, to investigate any associations with LUTS.
Concluding message
The most commonly reported LUTS were nocturia followed by urgency, which was significantly lower in the VD group than the CD.
SUI, nocturia, and urgency were most frequently considered moderate or severe bother nevertheless no association was found between the severity of LUTS and the degree of botherness
The prevalence of all three subtypes of UI was higher after VD compared with CD, with significant higher risk of stress incontinence in CD.
Figure 1
Figure 2
References
  1. Gyhagen M, Bullarbo M, Nielsen TF, Milsom I. A comparison of the long-term consequences of vaginal delivery versus caesarean section on the prevalence, severity and bothersomeness of urinary incontinence subtypes: a national cohort study in primiparous women. BJOG. 2013;120(12):1548–1555
  2. Åhlund, S., Rothstein, E., Rådestad, I., Zwedberg, S., & Lindgren, H. (2020). Urinary incontinence after uncomplicated spontaneous vaginal birth in primiparous women during the first year after birth. International urogynecology journal, 31(7), 1409–1416.
Disclosures
Funding None Clinical Trial No Subjects Human Ethics Committee CES- Comissão de ética para a Saúde do Centro Hospitalar Universitário do Algarve Helsinki Yes Informed Consent Yes
10/05/2025 02:37:47