jueves, 27 de agosto de 2009

multiples factores ligados a la NOCTURIA

rom Reuters Health Information

Multiple Factors Tied to Nocturia

NEW YORK (Reuters Health) (Updated Aug 24) - Although a number of conditions can be correlated with nocturia, none in particular seems to account for more than half of cases, Finnish researchers say.

"Nocturia," lead investigator Dr. Kari A. O. Tikkinen, of Helsinki University Central Hospital, told Reuters Health, "is a common but largely misunderstood urological condition in adults." He added that among men who have undergone prostatectomy or trans-urethral resection of the prostate, nocturia is the most persistent lower urinary tract symptom, and "many pharmacological approaches...can be ineffective or involve side-effects."

"Moreover," he said, "bedtime fluid intake patterns likely have little to do with the frequency of nocturia in most individuals."

Noting that nocturia can be associated "with impaired mental and somatic health, impaired quality of life, and even increased mortality," the research team reports in the August issue of the American Journal of Epidemiology on responses from more than 3300 men and women, ages 18 to 79, to questions about nocturia that were included on mailed questionnaires.

Younger age groups were "oversampled" to improve estimates in populations with lower frequencies of nocturia.

"Numerous risk factors for nocturia were identified," Dr. Tikkinen said. "For instance, overactive bladder, obesity, snoring and restless legs syndrome (were found) in both sexes, benign prostatic hyperplasia in men and overweight in women."

"However," he pointed out, "none of the identified risk factors was associated with nocturia in more than half of the affected subjects of both sexes, highlighting the multifactorial etiology."

"Health care providers," Dr. Tikkinen concluded, "should consider the lower urinary tract, but also beyond it, when treating bothersome nocturia."

Am J Epidemiol 2009;170:361-368.

Reuters Health Information © 2009

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