Objective To investigate the effect of urinary training on urination control in infants using nappies after birth.Methods Stratified sampling method was used to investigate the daytime urination control and the using of diapers by children in kindergartens of 6 prefecture-level cities in Henan Province,China.The survey was conducted among parents of healthy children.Results In a total of 12 250 questionnaires,11 697 had response,and 10 562 valid questionnaires were collected,and the effective recovery rate was 86.22％.After the birth of infants,the age of toilet training was divided into 6 groups (0-＜ 3 months old group,3-＜ 6 months old group,6-＜ 12 months old group,12-＜ 18 months old group,18-＜ 24 months old group and no toilet training group).Results showed that toilet training within 12 months leads to higher urinary control rate compared with toilet training after 12 months and no toilet training till the age of 2 years old,70.56％ (4 831/6 847 cases) in contrast with 59.02％ (1 545/2 618 cases) and 42.48％ (466/1 097 cases),and the differences were statistically significant (x2 =114.76,335.48,all P ＜ 0.000 1).Within 12 months,there was no statistical difference in the urinary control rate between subgroups at 2 years of age(all P ＞0.05).After 12 months,the urination control rate decreased with the start time delayed till 2 years of age,and the urinary control rate at the age of 2 years old n different groups was 59.97％ (1 314/2 191 cases) and 54.10％ (231/427 cases) respectively.The results of other ages(0.5,1.0,1.5 years old) were similar to those of 2 years old.There was no difference between the groups of different genders (all P ＞ 0.05).Conclusions The use of diapers in infants before the age of 1 year to start urinary training is conducive to the development of urinary control in infants.

Objective:To explore the urodynamic characteristics of bladder function in patients with abnormal urination after radical hysterectomy of cervical cancer.Methods:In a prospective self-controlled study, a total of 84 patients with cervical cancer and clinical stage of ⅠB to ⅡA, meeting the preoperative inclusion criteria in our hospital from January 2016 to June 2018 were enrolled.All patients were tested for urodynamic testing 1 week before and 6 months after surgery.Patient bladder function status was observed and evaluated before and after surgery and urodynamic examination results were analyzed.Results:Of 84 study cases, the 58 patients developed abnormal urination after radical surgery, there were no urination abnormalities in 26 cases.There was no significant difference in age, clinical stage and pathological diagnosis between patients with and without urination abnormalities.Abnormal urination after radical surgery included difficulty in urinating(55%), frequent urination with a feeling of urination not complete(34%), stress urinary incontinence(7%), and urinary incontinence(4%). Among the 26 patients without urination abnormalities after radical surgery, only one case showed an abnormal urodynamic examination(abnormal bladder sensation). In patients without abnormal urination after surgery, differences in the urodynamic examination findings between pre-and post-surgery were not statistically significant(all P> 0.05). At the same time, in all cases of abnormal urination after radical hysterectomy of cervical cancer, 43 patients(74%)with bladder dysfunction had normal urination pattern before operation, but after operation, the urination abnormality required abdominal pressure.Of the patients with bladder dysfunction after surgery, the maximum flow rate(Qmax)was(12.9±10.3)ml/s, the average flow rate(Qave)was(6.0±4.2)ml/s, the voided volume was(148.0±36.8)ml, voiding time was(32.9±22.1)s, maximum flow time was(11.4±5.0)s, postvoid residual urine was(260.2±219.2)ml, maximal detrusor pressure was(12.1±8.9)cmH 2O, bladder compliance was(16.1±4.3)ml/cmH 2O, normal desire to void was(354.5±204.3)ml, maximal capacity was(587.4±152.5)ml, maximum urethral pressure was(97.6±33.1)cmH 2O, maximum urethral closure pressure was(89.9±36.4)cmH 2O, and function urethral length was(29.6±6.5)mm; In comparison, the above indexes-corresponding values at 1 week before surgery were respectively as follows: the Qmax was(25.1±11.4)ml/s, the Qave was(11.4±6.6)ml/s, the voided volume was(318.6±96.4)ml, voiding time was(29.2±18.5)s, maximum flow time was(6.7±3.9)s, postvoid residual urine was(29.9±21.5)ml, maximal detrusor pressure was(31.9±21.4)cmH 2O, bladder compliance was(78.1±33.9)ml/cmH 2O, normal desire to void was(258.2±185.5)ml, maximal capacity was(335.1±124.9)ml, maximum urethral pressure was(96.4±33.9)cm H 2O, maximum urethral closure pressure was(88.5±35.2)cmH 2O, and function urethral length was(37.2±7.2)mm.It can be seen that Qmax, Qave, voided volume, maximum detrusor pressure, bladder compliance, and functional urethral length in patients with abnormal urination are significantly lower after radical hysterectomy of cervical cancer than before the surgery.While, normal desire to void, maximum capacity, maximum flow time, and postvoid residual urine volume were higher after radical hysterectomy than before surgery( P<0.05). In addition, there was no significant difference in voiding time, maximum urethral pressure and maximum urethral closure pressure between pre-and post-operation.Besides, it is worth noting that there was no significant difference in preoperative urodynamic test results between patients without abnormal urination versus patients with abnormal urination( P>0.05), and the difference in urodynamic test results between the two groups is statistically significant( P<0.05). There was no statistically significant difference in abnormal urination and in urodynamic test results between different clinical stages and between different pathological types( P>0.05). Conclusions:The characteristics of urinary dynamics in patients with abnormal urination after radical hysterectomy of cervical cancer are mainly manifested as decreased bladder sensory function and abnormal detrusor function.And the urodynamic test can provide objective clinical indicators for early diagnosis.