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Nocturnal enuresis (NE) is a common health problem. Approximately 10% of 7-year-old children wet the bed regularly during sleep. Enuresis can be categorized into monosymptomatic (MEN) and nonmonosymptomatic (NMEN) forms. MEN occurs without any other symptoms of bladder dysfunction. NMEN is associated with dysfunction of the lower urinary tract with or without daytime incontinence. The rate of comorbid gastrointestinal, behavioral, and emotional disorders is elevated depending upon the subtype of NE. A careful clinical history is fundamental to the evaluation of enuresis. Diagnostic procedures include medical history and psychological screening with questionnaires, bladder and bowel diary, physical examination, urinalysis, ultrasound, and examination of residual urine. The mainstay of treatment is urotherapy with information and psychoeducation about normal lower urinary tract function, the underlying cause of MEN, disturbed bladder dysfunction in the child with NMEN and instructions about therapeutic strategies. Alarm therapy and the use of desmopressin have been shown to be effective in randomized trials. Children with NMEN first need treatment of the underlying daytime functional bladder problem before treatment of nocturnal enuresis. In patients with findings of overactive bladder, besides urotherapy, anticholinergic drugs may be useful.

\"An introduction to the world of nocturnal animals and a call to preserve the endangered darkness, by a wildlife biologist\"-- Provided by publisher.

Introduction: This guideline establishes clinical practice recommendations for treatment of restless legs syndrome (RLS) and periodic limb movement disorder (PLMD) in adults and pediatric patients. Methods: The American Academy of Sleep Medicine (AASM) commissioned a task force of experts in sleep medicine to develop recommendations and assign strengths based on a systematic review of the literature and an assessment of the evidence using the grading of recommendations assessment, development, and evaluation methodology. The task force provided a summary of the relevant literature and the certainty of evidence, the balance of benefits and harms, patient values and preferences, and resource use considerations that support the recommendations. The AASM Board of Directors approved the final recommendations. Good Practice Statement: The following good practice statement is based on expert consensus, and its implementation is necessary for the appropriate and effective management of patients with RLS: 1. In all patients with clinically significant RLS, clinicians should regularly test serum iron studies including ferritin and transferrin saturation (calculated from iron and total iron binding capacity). Testing should ideally be administered in the morning avoiding all iron-containing supplements and foods at least 24 hours prior to blood draw. Analysis of iron studies greatly influences the decision to use oral or intravenous (IV) iron treatment. Consensus guidelines, which have not been empirically tested, suggest that supplementation of iron in adults with RLS should be instituted with oral or IV iron if serum ferritin ≤ 75 ng/mL or transferrin saturation < 20%, and only with IV iron if serum ferritin is between 75 and 100 ng/mL. In children, supplementation of iron should be instituted for serum ferritin < 50 ng/mL with oral or IV formulations. These iron supplementation guidelines are different than for the general population. 2. The first step in the management of RLS should be addressing exacerbating factors, such as alcohol, caffeine, antihistaminergic, serotonergic, antidopaminergic medications, and untreated obstructive sleep apnea. 3. RLS is common in pregnancy; prescribers should consider the pregnancy-specific safety profile of each treatment being considered. Recommendations: The following recommendations are intended as a guide for clinicians in choosing a specific treatment for RLS and PLMD in adults and children. Each recommendation statement is assigned a strength (“strong” or “conditional”). A “strong” recommendation (ie, “We recommend…”) is one that clinicians should follow under most circumstances. The recommendations listed below are ranked in the order of strength of recommendations and grouped by class of treatments within each PICO (Patient, Intervention, Comparator, Outcome) question. Some recommendations include remarks that provide additional context to guide clinicians with implementation of this recommendation. Adults with RLS: 1. In adults with RLS, the AASM recommends the use of gabapentin enacarbil over no gabapentin enacarbil (strong recommendation, moderate certainty of evidence) 2. In adults with RLS, the AASM recommends the use of gabapentin over no gabapentin (strong recommendation, moderate certainty of evidence). 3. In adults with RLS, the AASM recommends the use of pregabalin over no pregabalin (strong recommendation, moderate certainty of evidence). 4. In adults with RLS, the AASM recommends the use of IV ferric carboxymaltose over no IV ferric carboxymaltose in patients with appropriate iron status (see good practice statement for iron parameters) (strong recommendation, moderate certainty of evidence). 5. In adults with RLS, the AASM suggests the use of IV low molecular weight iron dextran over no IV low molecular weight iron dextran in patients with appropriate iron status (see good practice statement for iron parameters) (conditional recommendation, very low certainty of evidence). 6. In adults with RLS, the AASM suggests the use of IV ferumoxytol over no IV ferumoxytol in patients with appropriate iron status (see good practice statement for iron parameters) (conditional recommendation, very low certainty of evidence). 7. In adults with RLS, the AASM suggests the use of ferrous sulfate over no ferrous sulfate in patients with appropriate iron status (see good practice statement for iron parameters) (conditional recommendation, moderate certainty of evidence) 8. In adults with RLS, the AASM suggests the use of dipyridamole over no dipyridamole (conditional recommendation, low certainty of evidence). 9. In adults with RLS, the AASM suggests the use of extended-release oxycodone and other opioids over no opioids (conditional recommendation, moderate certainty of evidence). 10. In adults with RLS, the AASM suggests the use of bilateral high-frequency peroneal nerve stimulation over no peroneal nerve stimulation (conditional recommendation, moderate certainty of evidence). 11. In adults with RLS, the AASM suggests against the standard use of levodopa (conditional recommendation, very low certainty of evidence). Remarks: levodopa may be used to treat RLS in patients who place a higher value on the reduction of restless legs symptoms with short-term use and a lower value on adverse effects with long-term use (particularly augmentation). 12. In adults with RLS, the AASM suggests against the standard use of pramipexole (conditional recommendation, moderate certainty of evidence). Remarks: pramipexole may be used to treat RLS in patients who place a higher value on the reduction of restless legs symptoms with short-term use and a lower value on adverse effects with long-term use (particularly augmentation). 13. In adults with RLS, the AASM suggests against the standard use of transdermal rotigotine (conditional recommendation, low certainty of evidence). Remarks: transdermal rotigotine may be used to treat RLS in patients who place a higher value on the reduction of restless legs symptoms with short-term use and a lower value on adverse effects with long-term use (particularly augmentation). 14. In adults with RLS, the AASM suggests against the standard use of ropinirole (conditional recommendation, moderate certainty of evidence). Remarks: ropinirole may be used to treat RLS in patients who place a higher value on the reduction of restless legs symptoms with short-term use and a lower value on adverse effects with long-term use (particularly augmentation). 15. In adults with RLS, the AASM suggests against the use of bupropion for the treatment of RLS (conditional recommendation, moderate certainty of evidence). 16. In adults with RLS, the AASM suggests against the use of carbamazepine (conditional recommendation, low certainty of evidence). 17. In adults with RLS, the AASM suggests against the use of clonazepam (conditional recommendation, very low certainty of evidence). 18. In adults with RLS, the AASM suggests against the use of valerian (conditional recommendation, very low certainty of evidence). 19. In adults with RLS, the AASM suggests against the use of valproic acid (conditional recommendation, low certainty of evidence). 20. In adults with RLS, the AASM recommends against the use of cabergoline (strong recommendation, moderate certainty of evidence). Special adult populations with RLS: 21. In adults with RLS and end-stage renal disease (ESRD), the AASM suggests the use of gabapentin over no gabapentin (conditional recommendation, very low certainty of evidence). 22. In adults with RLS and ESRD, the AASM suggests the use of IV iron sucrose over no IV iron sucrose in patients with ferritin < 200 ng/mL and transferrin saturation < 20% (conditional recommendation, moderate certainty of evidence). 23. In adults with RLS and ESRD, the AASM suggests the use of vitamin C over no vitamin C (conditional recommendation, low certainty of evidence). 24. In adults with RLS and ESRD, the AASM suggests against the standard use of levodopa (conditional recommendation, low certainty of evidence). Remarks: levodopa may be used to treat RLS in patients who place a higher value on the reduction of restless legs symptoms with short-term use and a lower value on adverse effects with long-term use (particularly augmentation). 25. In adults with RLS and ESRD, the AASM suggests against the standard use of rotigotine (conditional recommendation, very low certainty of evidence). Remarks: rotigotine may be used to treat RLS in patients who place a higher value on the reduction of restless legs symptoms with short-term use and a lower value on adverse effects with long-term use (particularly augmentation). Adults with PLMD: 26. In adults with PLMD, the AASM suggests against the use of triazolam (conditional recommendation, very low certainty of evidence). 27. In adults with PLMD, the AASM suggests against the use of valproic acid (conditional recommendation, very low certainty of evidence). Children with RLS: 28. In children with RLS, the AASM suggests the use of ferrous sulfate over no ferrous sulfate in patients with appropriate iron status (see good practice statement for iron parameters) (conditional recommendation, very low certainty of evidence). Citation: Winkelman JW, Berkowski JA, DelRosso LM, et al. Treatment of restless legs syndrome and periodic limb movement disorder: an American Academy of Sleep Medicine clinical practice guideline. J Clin Sleep Med. 2025;21(1):137–152.

Background Few studies manage patients with isolated monosymptomatic enuresis (MNE) with multidisciplinary evaluation and pre- and long-term post-intervention monitoring. Methods This was a prospective study of MNE patients, aged 6–16 years, diagnosed by multidisciplinary assessment. Of the 140 initial applicants (58.6%) with MNE, 82 were included in the study and randomized for therapeutic intervention in three treatment groups, namely: alarm, desmopressin and alarm + desmopressin. Therapeutic response was evaluated 12 months after treatment withdrawal. Results Of the 82 patients [mean age 9.5 (SD ± 2.6) years, n = 62 males (75.6%)], 91.1% had a family history of nocturnal enuresis (NE) in first-/second-degree relatives, 81.7% had constipation and 40.7% had mild-to-moderate apnea. Prior to randomization, management of constipation and urotherapy led to remission in seven of the 82 patients; 75 patients were randomized to intervention. There were 14/75 (18.7%) dropouts during the intervention, especially in the alarm group ( p  = 0.00). Initial complete/partial response was achieved in 56.6% of the alarm group, 70% of the desmopressin group and 64% in the combined group ( p  = 0.26). Continued success occurred in 70% of the alarm group, 84.2% of the desmopressin group and 100% of the combined group ( p  = 0.21). Recurrence occurred in 3/20 (15%) patients in the alarm group and 1/19 (5.2 %) patients of the desmopressin group. Post-intervention Child Behavior Checklist (CBCL) and PedsQL 4.0 scores showed significant improvement. Conclusions The three therapeutic modalities were effective in managing MNE with low relapse rates; the alarm group showed the highest dropout rate. Therapeutic success was associated with improvement of behavioral problems and quality of life scores.

The purpose of this study was to determine any changes in the rectus abdominis and diaphragm muscles, which are core muscles, in children and adolescents with nocturnal enuresis (NE) using the shear wave elastography (SWE). In this case-control study, the rectus abdominis and diaphragm muscles of 40 children and adolescents with NE and 40 healthy controls were evaluated. The rectus abdominis muscle was examined at the right supra- and subumbilical levels, and the diaphragm at the right 9th-10th intercostal space. The thickness of both muscles was measured by gray scale ultrasound and muscle stiffness was measured by SWE. The demographic characteristics of the patients such as sex and age and their anthropometric measurements including height, weight, and BMI were recorded. Compared to the control group, the NE group had significantly lower mean rectus abdominis muscle stiffness values on both the supraumbilical and subumbilical levels (p < 0.05). There was no significant difference in mean rectus abdominis thickness and diaphragm thickness-stiffness values between the groups (p > 0.05). According to the results of the study, it is thought that NE children have problems with core stabilization and that children with NE should be directed to appropriate treatment. However, future studies are needed with larger sample sizes and other factors that are thought to affect muscle architecture.

Examines the physical characteristics, habitat, and babies of owls.

PurposeFor a new formulation of a drug, only pharmacokinetic bioequivalence with the original formulation has to be demonstrated in healthy, young adults. However, “children are not small adults,” and to guarantee a safe and effective treatment, age-adapted drug development is required. Desmopressin, a vasopressin analogue prescribed for nocturnal enuresis in children, was studied as an example formulation first developed in adults and then extrapolated to a pediatric indication.MethodsPopulation pharmacokinetic and pharmacodynamic modeling was used to analyze previously published desmopressin data of 18 children suffering from nocturnal enuresis. The main objective was the comparison of the therapeutic equivalence of two desmopressin formulations: tablet and lyophilisate. The measurements for pharmacokinetics and pharmacodynamics were respectively plasma desmopressin concentration and urine osmolality and diuresis.ResultsThe half maximal inhibitory concentration for inhibition of urine production was 0.7 pg/mL lower for the lyophilisate than for the tablet. The effect of formulation on the half maximal inhibitory concentration seems to suggest that the 120-μg lyophilisate has a more pronounced effect on the urine volume and osmolality than the 200-μg tablet, even when the same exposure is achieved.ConclusionsA new indirect response model for desmopressin was constructed and validated, using a previously built pharmacokinetic model and additional pharmacodynamic data. In order to draw solid conclusions regarding the efficacy and safety of desmopressin in children, pharmacokinetics and pharmacodynamics data should be analyzed together. This study adds proof to potential differences in pediatric and adult pharmacokinetic and pharmacodynamic properties of desmopressin and exemplifies the need for pediatric clinical trials, not only for every new drug but also for every new formulation.