Diabetes Care, Vol 8, Issue 5 499-506, Copyright © 1985 by American Diabetes Association
The treatment of urinary tract infections in women with diabetes mellitus
M Forland and VL Thomas
Forty-five women with diabetes mellitus and urinary tract infections have
been followed an average of 34 mo on treatment protocols based on
localization of infection as determined by the presence or absence of
antibody-coated bacteria (ACB). Treatment was usually, but not exclusively,
trimethoprim-sulfamethoxazole. Two weeks of oral therapy was equally
efficacious to 6 wk of treatment in asymptomatic women with antibody-coated
bacteria (ACB)-positive infection in eradicating bacteriuria. Recurrences
in all groups were predominantly reinfections with differing serotypes or
species of microorganisms. The sustained remission rate (fractional
extraction) after initial treatment was similar to other reported groups,
but possibly less efficacious with recurrences. Suppressive therapy with
trimethoprim-sulfamethoxazole for repeated recurrences effectively
prevented infection but provided no posttreatment benefit. A high
prevalence of underlying structural genitourinary tract abnormalities,
usually detectable on pelvic examination, and which were not direct
consequences of diabetes mellitus, were possible contributing factors to
recurrent infection in this patient group. Progressive elevation in serum
creatinine in seven patients with initial ACB-positive infections appeared
to relate more closely to diabetic nephropathy rather than chronic
pyelonephritis. ACB-positivity correlated well with elevated serum antibody
titers and the presence of underlying anatomic abnormalities, but ACB
categorization did not lead to improved therapeutic strategy or outcome and
hence was of limited clinical usefulness.