Cefetamet pivoxil in acute pyelonephritis: An open study

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Abstract
Fifty-five adult patients with acute uncomplicated pyelonephritis were investigated in an open, prospective, randomized comparative study in which 31 patients were allocated to receive 1000 mg cefetamet pivoxil twice daily (or 2000 mg once daily) and 24 to receive 1000 mg cefadroxil twice daily, given orally for 10 to 15 days. Both groups were comparable for age, sex and body weight. Clinical signs and symptoms, i.e. flank tenderness, dysuria, urgency and pyuria, subsided somewhat more rapidly with cefetamet pivoxil, while defervescence was obtained by Day 3 +/- 1 in both groups. Twenty-nine of the cefetamet pivoxil patients were assessed bacteriologically. The pathogens isolated prior to treatment were E. coli (22), Proteus mirabilis (5), P. vulgaris (1) and P. stuartii (1). All 29 patients had sterile urine at treatment end. In the 22 assessable patients in the cefadroxil group, the pathogens isolated before treatment were E. coli (17), P. mirabilis (3), and K. pneumoniae (2). Six patients had relapsed at treatment end (5 E. coli and 1 P. mirabilis). Patients were re-assessed at follow-up, usually 2 to 4 weeks after the end of treatment. Four of the 29 patients in the cefetamet pivoxil group showed relapse (3 E. coli and 1 P. mirabilis) as did a further 3 in the cefadroxil group (2 E. coli and 1 P. mirabilis). The overall therapeutic outcome was considered as successful, i.e. cure or improvement, in 89.7% of the cefetamet pivoxil patients and 72.7% of those who had received cefadroxil. Tolerability was satisfactory for both trial drugs and there were only a few mild to moderately severe adverse events reported.(ABSTRACT TRUNCATED AT 250 WORDS)