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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

A long-term follow-up of autoaugmentation in myelodysplastic children.

OBJECTIVE: To evaluate the long-term results of patients who underwent bladder autoaugmentation (BA) in whom BA was used to treat a neuropathic bladder secondary to myelomeningocele, and who presented with a high-pressure/poorly compliant bladder. PATIENTS AND METHODS: Eleven patients (eight girls and three boys, mean age 12.8 years, mean follow-up 6.6 years) were selected who had undergone BA between June 1991 and June 1994. At surgery, the patients had a poorly compliant bladder with a mean leak point volume (LPV) of 94 mL and a mean leak point pressure (LPP) of 58 cmH2O. None of the patients had vesico-ureteric reflux ( VUR) at BA; five with grade III or IV VUR had undergone endoscopic correction in a day-surgery procedure using a suburethral collagen injection 1-3 weeks before BA. The patients were evaluated using clinical, urodynamic, radiological and endoscopic assessments. The LPV, LPP and safe bladder capacity (SBC, the cystometric volume at an intravesical pressure of 40 cmH2O) were recorded. RESULTS: At 1 year after surgery the mean LPV was 297 mL; none of the patients had VUR. The most recent mean LPV was 198 mL and the SBC 167 mL. The mean LPP remained stable at 60 cmH2O. At the last follow-up four patients had recurrent uni- or bilateral grade III-V VUR. At endoscopy the 'augmented' bladder portion had a smooth surface, compared with the grossly trabeculated lower half. From this finding all patients on clean intermittent catheterization were treated with oral oxybutynin. Some patients reported slightly less abdominal pain at maximum bladder volume; four needed pads to treat intermittent incontinence. On voiding cysto-urethrography, one patient had an hourglass-shaped bladder. Five patients recently underwent ileocystoplasty because of recurrent urinary tract infection, high-grade VUR and incontinence. CONCLUSION: These results do not justify the routine use of BA in hypertonic/poorly compliant bladders secondary to myelomeningocele. The mean follow-up of 6.6 years showed that this procedure failed in seven of 11 patients. Further studies might be able to identify subgroups in which this approach may be more appropriate.[1]


  1. A long-term follow-up of autoaugmentation in myelodysplastic children. Marte, A., Di Meglio, D., Cotrufo, A.M., Di Iorio, G., De Pasquale, M., Vessella, A. BJU international. (2002) [Pubmed]
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