Desmopressin, Imipramine, and Oxybutynin in the Treatment of Primary Nocturnal Enuresis: A Randomized Clinical Trial

Comparison of the Efficacy of Tolterodine versus Oxybutynin in the Treatment of Children with Desmopressin-Resistant Enuresis: A Randomized Controlled Clinical Trial

Background

Enuresis, defined as involuntary nocturnal urination without any underlying organic disorder in a child expected to control urination, poses a common problem. This study evaluated the effectiveness of Tolterodine and Oxybutynin in children presenting with primary desmopressin-resistant enuresis.

Materials and Methods

A randomized clinical trial was undertaken involving 68 participants aged between 5 and 16 years, all suffering from primary enuresis. These patients were randomly assigned to one of two treatment groups for a three-month period: Group 1, treated with Oxybutynin and Desmopressin, and Group 2, treated with Tolterodine and Desmopressin. Data on demographics, clinical and laboratory findings, and subjective responses to treatment were gathered. The response was measured based on the frequency of wetting incidents per night and week and compared with pre-treatment data.

Results

Patients were divided into two groups (30 patients in Group 1 and 38 patients in Group 2). The mean age of the patients was 88.97±27.09 months. In the first treatment group, 6 out of 30 patients (20%) experienced a complete treatment response, as did 5 out of 38 patients (13.2%) in the second treatment group. This difference between the groups was not statistically significant. Seven patients (23%) in the Oxybutynin group and 13 patients (34%) in the Tolterodine group reported a lack of response to treatment, a difference that also lacked statistical significance.

Conclusion

For patients resistant to Desmopressin, the addition of anticholinergic drugs elicited a significant response in over half of the patients. However, no benefit was observed in using either Oxybutynin or Tolterodine in the treatment of Desmopressin-resistant enuresis.

Serum Sodium Alterations in Children with Primary Monosymptomatic Nocturnal Enuresis Using Desmopressin

Background: Hyponatremia/water intoxication has been considered a rare but serious complication of desmopressin (DDAVP) for the treatment of primary monosymptomatic nocturnal enuresis (PMNE). Objectives: This study aimed to identify the incidence and risk factors of serum sodium (Na) alterations in children with PMNE treated with oral or intranasal DDAVP. Methods: A total of 201 patients with PMNE were evaluated in 2 groups using intranasal (n = 127) or oral DDAVP (n = 74) for approximately 6 months. Treatment efficacy was defined as a more than 50% decrease in wet nights after 1 month of treatment. Serum Na was measured before, during, and after treatment in all patients. Predisposing factors of serum Na disturbance were evaluated concomitantly. Results: The mean age of patients was 8.8 ± 2.6 (5 - 17.5) years, and males outnumbered females (M/F = 1.68). Treatment efficacy was 100% in 93 (46.2%), and > 90% in 157 (78.1%) cases. Oral DDAVP had significantly more therapeutic effects than intranasal treatment (P = 0.024). However, serum Na had no significant difference between the 2 groups (P = 0.52). Hyponatremia occurred in 7 (3.5%) patients (3 in oral treatment and 4 in intranasal treatment; P = 0.73) with no significant correlation to age, gender, body weight, frequency of enuresis, and initial serum Na. However, decreased serum Na > 5 mEq/L was a significant risk factor for the prediction of hyponatremia in our patients (P < 0.001). Conclusions: Oral DDAVP had more therapeutic effects than intranasal treatment for the treatment of PMNE. Serum Na had no significant alteration in both oral and intranasal treatments, and hyponatremia was a rare complication of DDAVP, which occurred significantly in children with a > 5-mEq/L decrease of initial serum Na concentration. As a suggestion, monitoring serum Na is not an essential follow-up in asymptomatic patients in DDAVP treatment.

The Importance of Understanding Parental Perception When Treating Primary Nocturnal Enuresis: A Topic Review and an Institutional Experience

Primary nocturnal enuresis (PNE) is a common childhood disorder that adversely affects a child’s mental well-being and social life. Our clinical experience showed parents and their child often have significantly different perspective of enuresis, and these differences can affect family dynamics, treatment approaches, and treatment success. Parents’ perception of PNE also influences the likelihood of seeking medical treatment, and we found parents of children with enuresis have markedly different beliefs regarding bedwetting than those of physicians. Because achieving remission for PNE requires parents and their child to actively participate in treatment, assessing their expectancy of success and their beliefs will allow clinicians to adjust treatment goals as necessary. When treating PNE, guidelines consistently recommend incorporating bed alarms as part of the therapy. However, through interviewing parents and treating their children, we found parents preferred medications or other behavioral strategies, such as limiting water intake, because of their convenience. Many parents would complain bed alarms woke them up instead of their child, and they would soon give up on bed alarms. Part of assessing their beliefs includes assessing their confidence in their child being able to wake up to alarms and to persist with treatment. Understanding how they manage and approach setbacks will also determine the treatment modality suited for their child. In this review paper, we detailed our experiences interviewing parents and treating their child with NE with urodynamics and medications at the Changhua Christian Hospital in Taiwan.

Pretreatment morning urine osmolality and oral desmopressin lyophilisate treatment outcome in patients with primary monosymptomatic enuresis

PURPOSE

To determine the association between urine osmolality (Uosm) in patients with primary monosymptomatic enuresis (PMNE) and response to desmopressin (dDAVP) lyophilisate.

METHODS

This was a prospective cohort study that included 419 children with enuresis seen in outpatient clinic between October 2017 and October 2019. Patient workup included symptom checklist, 48 h frequency/volume chart, kidney and bladder ultrasound, uroflow, urinalysis and culture, spot urine Ca/creatinine, and first-morning Uosm. Patients < 5 years, with secondary enuresis, or loss of follow-up were excluded. Oral dDAVP lyophilisate was recommended to all with PMNE and normal bladder capacity. After 1 month of therapy, initial success was assessed according to ICCS. Significant predictor variables for complete response were identified and analyzed using correlation coefficients and binary logistic regression.

RESULTS

There were 48 patients with PMNE who received dDAVP and were followed for treatment success. Partial and complete responses were achieved for 14 (29.2%) and 20 cases (41.7%), respectively. Older age and lower Uosm were found to be significantly in favor of complete response to dDAVP lyophilisate, P = 0.007 and 0.033, respectively. ROC analysis determined the Uosm of ≤ 814 mOsm/kg as a cut-off value for complete success (sensitivity 65% and specificity 75%, AUC = 68.2%). The odds ratio for complete success for selected cut-off value was 5.57 (95% CI 1.588-19.551, P = 0.007).

CONCLUSION

High pretreatment morning Uosm (> 814 mOsm/kg) might be suggestive of an alternative treatment to dDAVP lyophilisate in PMNE because of the higher risk of treatment failure.

Experience Of Medical Treatment With Desmopressin And Imipramine In Children With Severe Primary Nocturnal Enuresis In Taiwan

Purpose

The aim of this study was to compare the efficacy and safety of desmopressin and imipramine in the treatment of severe primary nocturnal enuresis (NE) in Taiwan.

Patients and methods

This study was a retrospective chart review study conducted on children with primary monosymptomatic nocturnal enuresis (PMNE) or non-monosymptomatic nocturnal enuresis (PNMNE), referred to and treated by senior physicians in a Changhua medical center in Taiwan. After being screened, these children were treated with either desmopressin (n = 125) or imipramine (n = 71). All participants were treated for at least 3 months and followed afterward for at least 3 more months. The response and relapse rates were measured. Side effects were monitored. Age, gender, and severity of NE were recorded.

Results

After 3 months of treatment, 97 children treated with desmopressin were responsive (77.6%) while 58 children treated with imipramine were responsive (81.7%). Sixty-one children treated with desmopressin (48.8%) and 26 treated with imipramine (36.6%) relapsed during the 3-month post-treatment monitoring. The differences in responsive and relapse rates were not statistically significant. Four children treated with imipramine (5.6%) reported side effects while none was reported for children treated with desmopressin (P < 0.05). Age, gender, and the presence or absence of daytime enuresis did not influence the response rate to either drug (P < 0.05).

Conclusion

Currently, desmopressin is preferred over imipramine for treating NE due to the latter's side effects. Our results demonstrated similar response rates for both drugs, with imipramine demonstrating minimal side effects. While health practitioners should pay attention to its side effects, concerns regarding imipramine toxicity in NE treatment are often overblown. Since imipramine is much cheaper than desmopressin, using imipramine to manage NE can allow health practitioners, especially in Taiwan, to treat the greatest number of children with NE.

Effect of traditional Chinese and Western medicine on nocturnal enuresis in children and indicators of treatment success: Randomized controlled trial

BACKGROUND

Nocturnal enuresis (NE) is a common pediatric developmental disorder. Desmopressin is frequently used for NE and is an evidence-based therapy. Suoquan capsule is a Chinese medicine commonly used for treating NE in children but is poorly understood by most scholars.

METHODS

A total of 369 children with NE were randomized to receive either suoquan, desmopressin plus suoquan, desmopressin, or behavioral intervention for 2 months, and the response rates evaluated. Subsequently, the viable demographic factors that could lead to success were investigated on logistic regression analysis. Moreover, after 3 months of follow up, the relapse rate was investigated.

RESULTS

The complete response (CR) rate in the desmopressin plus suoquan group (37.5%) was higher than that in the behavioral intervention group (6.3%, P < 0.007). The desmopressin group had a lower CR rate (22.5%) and a higher non-response rate (25.0%) than the desmopressin plus suoquan group (non-response rate, 21.9%; P > 0.007). The relapse rate in the desmopressin group was significantly higher than that in the desmopressin plus suoquan group (72.2% vs. 30.6%, P < 0.007). On Multivariate analysis, treatment group, NE frequency, and age were independent predictors of CR at 2 months (P < 0.05).

CONCLUSIONS

Combined traditional Chinese and Western treatment in children with NE is effective and has a low relapse rate. NE frequency, treatment method, and age are important predictive factors for CR after treatment.

Behavioral factors for predicting severity of enuresis and treatment responses in different compliance groups receiving behavioral therapy

Objective:

To investigate behavioral factors for predicting severity of nocturnal enuresis and compare response rates in different compliance groups of behavioral interventions.

Methods:

Three hundred eleven children diagnosed with nocturnal enuresis were enrolled. This study was conducted at Beijing Children’s Hospital affiliated to the Capital Medical University from September 2016 to December 2016. Correlation of severity of enuresis and behavioral factors was investigated. All patients were treated with desmopressin based on behavioral interventions. After twomonth treatment, the patients were grouped according to the compliance of behavioral therapy. Then response rates in different compliance groups were compared.

Results:

Multivariate analysis revealed stool frequency, drinking water before going to bed, awaking the child to toilet at night, and appetite were independent risk factors affecting the severity of enuresis. The complete response rate of enuresis and partial response ratein fullcompliance group are higher than thoseof partial compliance and non-compliance group(21.9% vs 11.3%, 78.1% vs 59.8%; 21.9% vs 0%, 78.1% vs 49.1%; P<0.01). The complete response rate and partial response rate of partial compliance group are higher than those of the non-compliance group (P<0.01).

Conclusions:

Stool frequency, drinking water before going to bed, awaking the child to toilet at night, and appetite are independent predictive factors affecting the severity of enuresis. Good compliance of behavioral interventions may have a crucial role for better therapeutic outcomes.

Primary Nocturnal Enuresis: A Review

Context

Nocturnal enuresis or bedwetting is the most common type of urinary incontinence in children. It has significant psychological effects on both the child and the family. Enuresis nocturna is defined as the inability to hold urine during the night in children who have completed toilet training. It is termed as being “primary” if no continence has ever been achieved or “secondary if it follows at least 6 months of dry nights. The aim of this review was to assemble the pathophysiological background and general information about nocturnal enuresis.

Evidence Acquisition

This review was performed by evaluating the literature on nocturnal enuresis published between 1970 and 2015, available via PubMed and using the keywords “nocturnal enuresis,” “incontinence,” “pediatric,” “review,” and “treatment.”

Results

Children with nocturnal enuresis produce urine at higher rates during the night, and may have lower bladder capacities. Some children with nocturnal enuresis may also have daytime urgency, frequency, and urinary incontinence. Treatment includes aggressive treatment of accompanying constipation or urinary tract infections, behavioral changes, and medical therapy. Alarm therapy remains the first-line treatment modality for primary nocturnal enuresis. High rates of patient compliance and relapse mean that alternative treatments remain on the agenda.

Conclusions

Nocturnal enuresis is a common problem that has multifaceted effects on both the child and the family. Due to multiple etiologic factors, nocturnal enuresis is still not clearly defined.