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  • Title: Analgesic-associated nephropathy and transitional cell carcinoma of the urinary tract.
    Author: Gonwa TA, Corbett WT, Schey HM, Buckalew VM.
    Journal: Ann Intern Med; 1980 Aug; 93(2):249-52. PubMed ID: 7406375.
    Abstract:
    Epidemiologic studies from Europe suggest that patients with analgesic-associated nephropathy have an increased risk of developing transitional cell carcinoma of the urinary tract. We did a similar epidemiologic study supporting this association. Six of 115 cases of transitional cell carcinoma diagnosed over 3 years had analgesic-associated nephropathy. The patients were predominantly female, younger, and had renal pelvis tumors instead of bladder tumors (P < 0.002), an mortality rate was higher (P < 0.05). In a historical prospective study, 146 patients with interstitial nephritis diagnosed between 1974 and 1976 were divided into those with and those without analgesic-associated nephropathy. In 4 of 84 patients with analgesic-associated nephropathy transitional cell carcinoma has developed. None of the 98 patients without analgesic associated nephropathy have developed transitional cell carcinoma (P < 0.001). These data strongly incriminate analgesic abuse as a risk factor for the development of transitional cell carcinoma.
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