Journal List > Infect Chemother > v.44(4) > 1035158

Kim, Kim, Wie, Park, Cho, Lim, Shin, Yum, Lee, Kweon, Lee, Cheong, Park, Ryu, Chung, and Pai: Is it Acceptable to Select Antibiotics for the Treatment of Community-acquired Acute Cystitis Based on the Antibiotics Susceptibility Results for Uropathogens from Community-acquired Acute Pyelonephritis in Korea?

Abstract

Background

Uncomplicated acute cystitis (CA-UAC) is one of the most common infections treated with antibiotics in the community. However, few data on etiology of CA-UAC and its susceptibility to antibiotics are available, primarily because, in Korea, insurance does not allow reimbursement for microbiological evaluation of CA-UAC. However, microbiologic data on community-acquired uncomplicated acute pyelonephritis (CA-UAPN) are available. The objective of the study was to evaluate the question of whether microbiologic data on CA-UAPN can be used for treatment of CA-UAC; therefore, etiology and antimicrobial susceptibility were compared between pathogens of CA-UAC and those of CA-UAPN.

Materials and Methods

During 2008, 538 CA-UACs and 1,265 CA-UAPNs were recruited retrospectively from 14 hospitals (UTI research group). Microbiologic data on etiology and susceptibility to antibiotics were collected retrospectively.

Results

Urine culture was positive in 131 CA-UACs (131/469, 27.9%) and 719 CA-UAPNs (719/1249, 57.6%). Escherichia coli was the most common pathogen in both groups [83.2% (109/131) in CA-UAC vs. 91.9% (661/719) in CA-UAPN]. Susceptibility to common UTI regimens, such as ciprofloxacin, extended-spectrum cephalosporins, and trimethoprim/sulfamethoxazole did not differ between urinary pathogens of CA-UACs and CA-UAPNs, however, a significant difference was observed in rates of resistance to ampicillin/sulbactam (16.5% vs. 42.9%, P<0.001, respectively).

Conclusions

Rates of resistance of E. coli from CA-UAC and CA-UAPN to most antibiotics did not differ. For proper treatment, further microbiological evaluation for CA-UAC is mandatory.

Figures and Tables

Figure 1
Co-resistance of E. coli from CA-UAC and CA-APN to several antibiotics (The size of the circle reflects the rate of resistance).
CA-UAC, Community-acquired uncomplicated acute cystitis; CA-UAPN, Community-acquired uncomplicated acute pyelonephritis SXT, Trimethoprim/sulfamethoxazole; CIP, Ciprofloxacin; ESBL, Extended-specturm beta-lactamase; R, Resistance
ic-44-269-g001
Table 1
Identified Pathogens of CA-UAC and CA-UAPN
ic-44-269-i001

CA-UAC, Community-acquired uncomplicated acute cystitis; CA-UAPN, Community-acquired uncomplicated acute pyelonephritis; No, Numbers.

Reproduced with permission from Shin J, Kim J, Wie SH, Cho YK, Lim SK, Shin SY, Yeom JS, Lee JS, Kweon KT, Lee H, Cheong HJ, Park SH, Park DW, Ryu SY, Chung MH, Yoo S, Pai H. Fluoroquinolone resistance in uncomplicated acute pyelonephritis: epidemiology and clinical impact. Microb Drug Resist. 2012 Apr;18(2):169-75.

Table 2
Antibiotic Susceptibility of E. coli from CA-UAC and CA-UAPN
ic-44-269-i002

CA-UAC, Community-acquired uncomplicated acute cystitis; CA-UAPN, Community-acquired uncomplicated acute pyelonephritis; AMK, Amikacin; GEN, Gentamicin; TZP, Piperacillin/tazobactam; ESBL, Exteded-spectrum beta lactamase; FEP, Cepefime; CEF, Cephalothin; CIP, Ciprofloxacin; CRO, Ceftriaxone; CAZ, Ceftazidime; ATM, Aztreonam; TOB, Tobramycin; AMP, Ampicillin, SAM, Ampicillin/sulbactam; SXT, Trimethoprim/sulfamethoxazole.

a; ESBL negative, b; ESBL positive

Reproduced with permission from Shin J, Kim J, Wie SH, Cho YK, Lim SK, Shin SY, Yeom JS, Lee JS, Kweon KT, Lee H, Cheong HJ, Park SH, Park DW, Ryu SY, Chung MH, Yoo S, Pai H. Fluoroquinolone resistance in uncomplicated acute pyelonephritis: epidemiology and clinical impact. Microb Drug Resist. 2012 Apr;18(2):169-75.

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