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. 2002 Aug;87(2):151–155. doi: 10.1136/adc.87.2.151

Investigation of daytime wetting: when is spinal cord imaging indicated?

E Wraige 1, M Borzyskowski 1
PMCID: PMC1719171  PMID: 12138070

Abstract

Aim: To clarify indications for magnetic resonance imaging (MRI) of the spine in children with voiding dysfunction.

Methods: Retrospective study of children with voiding dysfunction referred from the Guy's Hospital neurourology clinic for MRI spine between April 1998 and April 2000. Clinical notes and results of investigations, including urodynamic studies and MRI spine were reviewed.

Results: There were 48 children (median age 9.1 years). Closed spina bifida was detected in five, of whom four had neuropathic vesicourethral dysfunction confirmed by urodynamic studies. Impaired bladder sensation and incomplete bladder emptying were more frequent in these children than in those with normal MRI spine. One child with spinal cord abnormality had no cutaneous, neuro-orthopaedic, or lumbosacral spine x ray abnormalities.

Conclusion: Spinal cord imaging should be considered in children with daytime wetting when this is associated with impaired bladder sensation or poor bladder emptying, even in the absence of neuro-orthopaedic, cutaneous, or lumbosacral spine x ray abnormalities.

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Figure 1 .

Figure 1

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Patients attending neurourology clinic during study period. *Reasons for exclusion: spinal cord pathology clinically apparent and radiologically defined prior to study period (n = 8), no voiding dysfunction (n = 3).

Figure 2 .

Figure 2

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Suggested protocol for investigation of children with daytime wetting. *Frequency voided and volume voided charts. †Abnormalities include: lower limb neurological or orthopaedic abnormalities (e.g. talipes, absent ankle reflexes, sensory loss), midline birth marks lower back (including lipoma, deep sacral pit, hairy tuft), abnormal lumbosacral spine x ray (excluding failure of fusion L5/S1 vertebrae), anorectal abnormalities (e.g. anal atresia). In addition, family history of spina bifida, maternal insulin dependent diabetes, or persistent constipation or faecal soiling indicate need for VUD and consideration of MRI spine. ‡Particularly if other abnormalities coexist (e.g. constipation or faecal soiling).

Selected References

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