Hysterectomy Is Associated with Stress Incontinence in Women Who Previously Had a Transcervical Endometrial Resection

[Impact of hysterectomy on urinary incontinence: A systematic review]

INTRODUCTION

The impact of a hysterectomy on urinary incontinence is a controversial subject in the literature.

OBJECTIVE

To evaluate the prevalence and incidence of urinary incontinence after a hysterectomy as well as associated risk factors such as the type of hysterectomy, the surgical approach, urodynamic criteria and uterine disease.

STUDY DESIGN

We conducted a systematic review in Pubmed database with the following keywords and MeSH term: hysterectomy, urinary incontinence.

RESULTS

A total of 1340 articles were retrieved, 42 articles were selected for the final text analysis. The results of the different studies were heterogeneous. Hysterectomy seemed to increase the rate of sphincter deficiency (VLPP<60mmH₂O for 20% of cases versus 1,7% without hysterectomy, P=0.003). The vaginal route could increase the incidence of UI with OR of 2.3 (95%CI 1.0-5.2). Subtotal hysterectomy appears to increase UI with a 0,74 RR for total hysterectomy (95%CI 0.58-0.94). A radical hysterectomy with nerve conservation would preserve urinary functions, unlike pelvic radiotherapy, which is responsible for irreversible nerve damage by demyelination and bladder fibrosis.

Changes in incontinence after hysterectomy

PURPOSE

Information about the perioperative incontinence following hysterectomy is limited. To advance the postoperative rehabilitation further we need more information about qualitative changes in incontinence, fatigue and physical function of patients undergoing hysterectomy.

METHODS

108 patients undergoing planned hysterectomy were compared pre- and postoperatively. In a sub-study of the prospective follow-up study the changes in incontinence, postoperative fatigue, quality of life, physical function, and body composition were evaluated preoperatively, 13 and 30 days postoperatively. Sample size calculation indicated that 102 women had to be included. The incontinence status was estimated by a Danish version of the ICIG questionnaire; further, visual analogue scale, dynamometer for hand grip, knee extension strength and balance were applied. Work capacity was measured ergometer cycle together with lean body mass by impedance. Quality of life was assessed using the SF-36 questionnaire. Patients were examined preoperatively and twice postoperatively.

RESULTS

In total 41 women improved their incontinence after hysterectomy and 10 women reported deterioration. Preoperative stress incontinence correlated with BMI (r = 0.25, p < 0.01) and urge incontinence with age (r = 0.24, p < 0.02). Further, improvement after hysterectomy in stress incontinence was associated with younger age (r = 0.20, p < 0.04). Improvement in urge incontinence was positively associated with BMI (r = 0.22, p = 0.02). A slight but significant loss was seen in lean body mass 13 and 30 days postoperatively.

CONCLUSIONS

Hysterectomy was not significantly associated with the risk of incontinence; in particular, when no further vaginal surgery is performed. Hysterectomy may even have a slightly positive effect on incontinence and de-novo cure.

Hysterectomy is not associated with de-novo urinary incontinence: A ten-year cohort study

OBJECTIVE

To determine prevalence, incidence proportion, and changes of urinary incontinence (UI) 10-13 years after hysterectomy compared to two control groups.

STUDY DESIGN

A longitudinal cohort study of 661 women with follow-up for ten years. Originally, 866 women answered a questionnaire on continence status preoperatively. Ten years postoperatively the queries were repeated in 371 with a hysterectomy, 89 with laparoscopic cholecystectomy (LC), and 201 with transcervical endometrial resection (TCRE). Significant incontinence was UI at least once a week. The main outcome measures were prevalence and incidence proportions of UI.

RESULTS

The overall prevalence of stress UI ten years after surgery was 23% compared to 12% preoperatively. Urge UI was prevalent in 12% compared to 5% preoperatively. Incidence proportions of stress UI were in hysterectomies 21%, in LC 15%, and in TCRE 18%. Similarly, incidence proportions of urge UI were in hysterectomies 11%, in LC 11%, and in TCRE 8%. No significant differences between surgical procedures were found; however, we found substantial amount of changes in continence status from continent to incontinent and vice versa in all three groups.

CONCLUSIONS

No significant difference was found after hysterectomy compared to controls in the prevalence or incidence proportions of UI after 10 years follow-up. Hysterectomy is not a risk factor of UI.

Reproductive factors associated with nocturia and urinary urgency in women: a population-based study in Finland

OBJECTIVE

The objective of this study was to evaluate the association of nocturia and urinary urgency with reproductive factors, including parity, the postpartum period, the menopause, hormone replacement therapy, hysterectomy, and surgery for stress urinary incontinence (SUI).

STUDY DESIGN

In 2003-2004, questionnaires eliciting urinary symptoms, reproductive factors, SUI surgery, and potential confounders were mailed to 3000 randomly selected women aged 18-79 years, identified from the Finnish Population Register. Nocturia was defined as 2 or more voids/night. Sudden compelling desire to urinate often or always (scale of never, rarely, often, always) was regarded as urgency. Pregnant and puerperal (6 weeks after delivery) women and those reporting urinary tract infection were excluded.

RESULTS

Responses totaled 2002 (67%). Parity, postpartum (defined as six weeks to one year after delivery) and postmenopausal periods were associated with increased nocturia and SUI surgery with increased urgency (adjusted for age, comorbidity, medication, anthropometric, sociodemographic and lifestyle factors). Hormone therapy and hysterectomy were associated with neither symptom.

CONCLUSION

Reproductive factors associated with nocturia differed from those related to urgency.