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Scand J Urol Nephrol. 2010 Apr;44(3):165-8. doi: 10.3109/00365591003636596.

Effectiveness of a cranberry (Vaccinium macrocarpon) preparation in reducing asymptomatic bacteriuria in patients with an ileal enterocystoplasty.

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  • 1Department of Urology, Hospital Foch, 40 rue Worth, Suresnes, France.

Abstract

OBJECTIVE:

Bacteriuria is a usual complication of enterocystoplasty following cystectomy. Cranberry products may decrease the number of urinary tract infections because of a non-dialysable compound, a condensed tannin, the proanthocyanidin (PAC) type A. This study determined the effectiveness of treatment with a cranberry preparation highly dosed in proanthocyanidin A in prevention of repeated bacteriuria in patients with an ileal enterocystoplasty.

MATERIAL AND METHODS:

Between November 2004 and November 2009, a controlled study was open to patients seen in consultation for follow-up after a radical cystectomy and ileal cystoplasty. Patients had a history of repeated urinary infection and/or bacteriuria during the pretreatment phase. During the treatment phase, patients received a cranberry (Vaccinium macrocarpon) preparation highly dosed in proanthocyanidin A (36 mg measured by the dimethylaminocinnamaldehyde method), one capsule a day. The primary endpoint was the absence of bacteria in urine culture. The secondary endpoints were the presence or absence of symptoms (pain, fever), continence status and upper excretory tract enlargement. Each patient was his or her own historical control.

RESULTS:

Fifteen patients were included. The median duration of the period without treatment with cranberry compound was 18.5 (1-93) months. The median duration of the period with treatment with cranberry compound was 32.8 (13-60) months. There was a significant decrease in the number of positive urine cultures during cranberry compound treatment.

CONCLUSIONS:

Treatment with a cranberry compound seems to be effective in reducing asymptomatic bacteriuria in patients with an ileal enterocystoplasty. These results need to be validated by further double-blind randomized studies.

PMID:
20367451
[PubMed - indexed for MEDLINE]
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