Nocturnal enuresis Done by Raghad Laith Rend Saad Raghda Falah

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Presentation transcript:

Nocturnal enuresis Done by Raghad Laith Rend Saad Raghda Falah Batool Abdulsalam Dr.Ali Ahmed

NORMAL VOIDING AND TOILET TRAINING The infant has coordinated, reflex voiding as often as 15 to 20 times per day At 2-4 yr, toilet training begins When grow up; Average bladder capacity (Ounces) = Age (yr)+ 2 ( Up to the age of 12-14 yr )

NORMAL VOIDING AND TOILET TRAINING Girls typically acquire bladder control before boys, and bowel control is typically achieved before urinary control. By 5 yr of age, 90-95% are nearly completely continent during the day and 80-85% are continent at night

NORMAL VOIDING AND TOILET TRAINING The transitional phase of voiding refers to: The period when children are acquiring bladder control.

Steps of normal conscious bladder control To achieve normal conscious bladder control, several steps must occur: 1.Awareness of bladder filling 2.Cortical inhibition (suprapontine modulation) of reflex (unstable) bladder contractions

Steps of normal conscious bladder control 3.Ability to consciously tighten the external sphincter to prevent incontinence 4.Normal bladder growth 5.Motivation by the child to stay dry.

Nocturnal enuresis The occurrence of involuntary voiding at night at 5 yr, the age when volitional control of micturition is expected.

Nocturnal enuresis (cont.) Enuresis may be : Primary (persistent) Enuresis: (70%-95%) is the condition describing the symptom of incontinence during sleep by a child who has never achieved consistent night-time dryness. This may further be subdivided into children who have enuresis only at night and those who also have daytime symptoms (urgency, frequency, or daytime wetting).

Nocturnal enuresis (cont.) Secondary (regressive) Enuresis: (10%-25%) is the condition describing the symptom of incontinence during sleep by a child who has previously been dry for at least 6 months. 75% of children with enuresis are wet only at night 25% are wet day and night. This distinction is important because the pathogenesis of the two patterns is different.

Epidemiology Approximately 60% of children with nocturnal enuresis are boys. Family history is also important and is positive in 50% of cases. Although primary nocturnal enuresis may be polygenetic, candidate genes have been localized to chromosomes 12 and 13.

Epidemiology (cont.) If one parent was enuretic, each child has a 44% risk of enuresis; If both parents were enuretic, each child has a 77% likelihood of enuresis.

Epidemiology (cont.) Nocturnal enuresis without overt daytime voiding symptoms affects up to 20% of children at the age of 5 yr It ceases spontaneously in approximately 15% of involved children every year thereafter. Its frequency among adults is less than 1%.

Pathogenesis Is multifactorial and includes the following: Delayed maturation of the cortical mechanisms that allow voluntary control of the micturition reflex. Sleep disorder-enuretic children, who are classically described as being deep sleepers, although no specific sleep pattern has been described. Enuresis can occur in any stage of sleep .

Pathogenesis Reduced antidiuretic hormone production at night, resulting in an increased urine output, which explains why children with enuresis often are described as "soaking the bed." Genetic factors, with chromosomes 12 and 13q the likely sites of the gene for enuresis; family history is often positive in enuretic children, as described earlier.

Pathogenesis Psychologic factors, often implicated in secondary enuresis. Organic factors, such as urinary tract infection (UTI) or obstructive uropathy, which is an uncommon cause of enuresis. Sleep apnea (snoring) secondary to enlarged adenoids.

Assessment To decide on appropriate investigations and treatment it is important to identify: Whether the child has previously been dry at night without assistance for 6 months (i.e. this is secondary enuresis)? If so, ask about any medical, physical or environmental, social or emotional causes or triggers for the change e.g. (bereavement, parental separation, etc.).

Assessment Whether there are any daytime symptoms (abnormal frequency of urination (either too frequent >7 times/day) or infrequent( < 4 times/day), urgency, daytime wetting, difficulty (straining) with poor stream, or pain on urination? Do symptoms occur only in some situations, e.g is there avoidance of toilets at school?

Assessment Assess the pattern of bedwetting: How many nights a week does bedwetting occur? How many times a night does bedwetting occur? Does there seem to be a large amount of urine? At what times of night does the bedwetting occur? Does the child wake up after bedwetting? Assess the child's fluid intake throughout the day, and ask whether the child or the parents or carers are restricting fluids.

Assessment Consider asking the parents or carers to keep a diary of the child's fluid intake, bedwetting, and toileting patterns for 2 weeks. Consider whether the child has Developmental, attention or learning difficulty? Could this be maltreatment or the child is being punished for bedwetting? Could this be Diabetes Mellitis?

Diagnosis A complete physical examination should include palpation of the abdomen and rectal examination after voiding to assess the possibility of a chronically distended bladder. The child should be examined carefully for neurologic and spinal abnormalities. Investigate (and treat) daytime symptoms before addressing enuresis, e.g. symptoms suggestive of diabetes, UTIs or constipation

Investigations Urinalysis Do not perform urinalysis routinely, unless the child or young person has: started bedwetting recently (in the last few days or weeks) daytime symptoms any signs of ill health a history, symptoms or signs suggestive of urinary tract infection a history, symptoms or signs suggestive of diabetes mellitus.

Investigations Ultrasonography or Uroflowmetry : To check for any abnormality of the urinary tract especially in the presence of voiding difficulties, or in children who do not respond appropriately to therapy.

Treatment The best approach to treatment is to reassure parents that the condition is self-limited and to avoid punitive measures that may affect the child's psychologic development adversely. Fluid intake should be restricted to : 2 oz after 6 or 7 o'clock in the evening if the child weighs less than 75 lb 3 oz if the child weighs 75 to 100 lb 4 oz if the child weighs more than 100 lb.

Treatment (cont.) The parents should be certain that the child voids at bedtime. If the child snores and the adenoids are enlarged, referral to an otolaryngologist should be considered, because adenoidectomy may result in cure of the enuresis.

Active treatment Should be avoided in children younger than age 6 yr because enuresis is extremely common in younger children. The simplest initial measure is motivational and includes a star chart for dry nights.

Active treatment (cont.) Waking children a few hours after they go to sleep to have them void often allows them to awaken dry, although this measure is not curative. Some have recommended that children try holding their urine for longer periods during the day, but there is no evidence that this approach is beneficial.

Active treatment (cont.) Conditioning therapy involves use of an auditory alarm attached to electrodes in the underwear. The alarm sounds when voiding occurs and is intended to awaken children and alert them to void. This form of therapy is considered curative and has a reported success of 30-60%. Often the alarm wakes up other family members and not the enuretic child; persistence for several months is necessary. A vibratory alarm is available also.

Active treatment (cont.) Conditioning therapy tends to be most effective in older children. Another form of therapy to which some children respond is self-hypnosis. The primary role of psychological therapy is to help the child deal with enuresis psychologically and help motivate arising to void at night if the child awakens with a full bladder

Pharmacologic therapy Is intended to treat the symptom of enuresis and is not curative:

Desmopressin acetate which is a synthetic analog of antidiuretic hormone and reduces urine production overnight. It is available as a tablet, with a dosage of 0.2-0.6 mg at bedtime. It is important to reduce evening fluid intake, and the drug should not be used if the child has a systemic illness with vomiting or diarrhea. Hyponatremia has been reported in a few children using the nasal spray, primarily those who were not using the medication properly. It has not been reported in children using the tablets.

Desmopressin acetate, (cont.) In children with rhinorrhea, the nasal spray is not absorbed and consequently is ineffective. Desmopressin acetate is effective in as many as 40% of children. If effective, it should be used for 3-6 mo, and then an attempt should be made to taper it. If tapering results in recurrent enuresis, the medication may be started again at the higher dosage. No adverse events have been reported with the long-term use of desmopressin acetate.

Imipramine is a tricyclic antidepressant. This medication has mild anticholinergic and α-adrenergic effects and may alter the sleep pattern also. The dosage of imipramine is: - 25 mg in children age 6-8 yr - 50 mg in children age 9-12 yr, and - 75 mg in teenagers.

Imipramine Reported success rates are 30-60%. Side effects include anxiety, insomnia, and dry mouth. In addition, the drug is one of the most common causes of poisoning by prescription medication in younger siblings.

Oxybutynin chloride a pure anticholinergic agent, has been used in some children with primary nocturnal enuresis, but the response rate is low. This drug control muscle spasms

Summary At 2-4 yr, toilet training begins By 5 yr of age, 90-95% are nearly completely continent during the day and 80-85% are continent at night Enuresis may be Primary (75%)or Secondary (25%) Family history is positive in 50% of cases If one parent was enuretic, each child has a 44% risk of enuresis; If both parents were enuretic, each child has a 77% likelihood of enuresis

Summary (cont.) The best approach to treatment is to reassure parents that the condition is self-limited The simplest initial measure is motivational Active treatment include: Conditioning therapy Psychological therapy Pharmacologic therapy

THANK YOU

References Evans JHC: Evidence-based management of nocturnal enuresis. BMJ 2001;323:1167-69. Glazener CM, Evans JH: Tricyclic and related drugs for nocturnal enuresis in children (Cochrane Review). Cochrane Database Syst Rev 2000;(3):CD002117 Leebeek-Groenewegen A, Blom J, Sukhai R, et al: Efficacy of desmopressin combined with alarm therapy for monosymptomatic nocturnal enuresis. J Urol 2001;166:2456-58. Medline Similar articles Schulman SL, Colish Y, von Zuben FC, et al: Effectiveness of treatments for nocturnal enuresis in a heterogeneous population. Clin Pediatr 2000;39:359-64. Schulman SL, Stokes A, Salzman PM: The efficacy and safety of oral desmopressin in children with primary nocturnal enuresis. J Urol 2001;166:2427-31. Medline Similar articles Schum TR, Kolb TM, McAuliffe TL, et al: Sequential acquisition of toilet-training skills: A descriptive study of gender and age differences in normal children. Pediatrics 2002;109(3):E48. Medline Similar articles