USEFULLNESS OF THE DRUG SENSITIVITY TEST FOR THE TREATMENT OF THE PATIENTS WITH CYSTITIS CONCERNING TO COSTEFFECTIVENESS

Abstract

Tests for identification and drug sensitivity of bacteria in urine are carried out in patients with cystitis symptom and pyuria.
Generally, to a patient once diagnosed as acute cystitis by routine urinalysis, an appropriate antibacterial agent is administered. The patients is often healed before the results of drug sensitivity test came out.
Thus, retrospective studies were made to see how the above tests were really useful for a total of 673 patients with acute cystitis, consisting of 402 uncomplicated, 182 recurrent, and 89 complicated cases.
Among them 374 patients showed Escherichia coli in their urine cultures, which represented 75% of the identified bacterias.
In 257 patients (69%) of them, the bacteria (E. coli) were sensitive to all of the drugs tested.
Tests for identification and drug sensitivity of bacteria were useful only for 39 cases.
The usefullness rate in uncomplicated, recurrent, and complicated cases were 4%, 6% and 16%, respectively.
In conclusion, the drug sensitivity test, which is now applied to almost all cases of acute cystitis, seems to be further reducible in frequency.