AFR and Voiding Time
According to our study findings, AFR and voiding times from the urodynamic exam were worse in patients with surgical complications. Preoperative urodynamic evaluations may predict the risk of voiding dysfunction in women with SUI undergoing midurethral sling surgery,41 although other research has failed to support such evaluations.42 Another study from Taiwan has found that an abnormal preoperative uroflowmetry pattern and preoperative peak flow <15 ml/s are risk factors contributing to voiding dysfunction following midurethral sling surgery,43 and a low flow rate is reported by other researchers to be a risk factor for early voiding dysfunction postoperatively.44 In our study, all of our patients (with and without surgical complications) had much lower AFR values (8.0 vs 10.0 ml/s, respectively) than the studies mentioned above. The discrepant outcomes may depend upon different criteria used by the various studies to determine low flow rates, as well as the differing severity of SUI in the various study populations.