European Urogynaecological Association Position Statement: The role of urodynamics in stress urinary incontinence evaluation and treatment decision

Stress urinary incontinence (SUI) is defined as a condition characterized by the involuntary leakage of urine during activities that increase intra-abdominal pressure which may decrease quality of life with a significant economic impact on health systems, necessitating the implementation of cost-effective management plans. Urodynamics (UDS) has been considered during the last decades as the gold standard for assessment of lower urinary tract symptoms (LUTS) due to their high reproducibility. At the same time, concerns about the systematic use of UDS before SUI surgery were raised due to a limited evidenced base to recommend their routine use. In uncomplicated female patients with SUI, UDS can offer further insights into LUTS, potentially assisting the physician in determining the appropriate therapeutic approach. However, it has not been shown that preoperative UDS can directly impact the surgical outcome for continence. Indeed, evidence supports the conclusion that pre-operative UDS in women with uncomplicated, clinically demonstrable, SUI does not improve the outcome of surgery for SUI. Nevertheless, asymptomatic detrusor overactivity (DO) identified by urodynamic testing or pre-existing voiding dysfunction are associated with an increased occurrence of postoperative overactive bladder (OAB) and voiding dysfunction, respectively. The EUGA Working Group concluded that the evidence does not support the systematic preoperative use of UDS for uncomplicated cases. However, in cases where mixed symptoms, voiding dysfunction, previous surgery, or concomitant prolapse are present, preoperative UDS are advised as they can be beneficial in anticipating postoperative outcomes. This aids in conducting comprehensive and thorough preoperative counseling. The Group recommend performing preoperative UDS considering the patient's specific clinical situation and the surgeon's judgment, with consideration given to the potential benefits, risks, and impact on treatment decisions and patient outcomes.