Published: 2017-05-27

Prevalence of microorganisms causing catheter associated urinary tract infections (CAUTI) among catheterised patients admitted in a tertiary care hospital

Vinoth M., Prabagaravarthanan R., Bhaskar M.


Background: Catheter-associated urinary tract infection (CAUTI) is an important cause of morbidity and mortality in Indian subjects, affecting all age groups. Bacteriuria orcandiduria is almost inevitable in nearly half of the patients who require an indwelling urinary catheter for more than 5 days. The objective of this study was to find the prevalence of CAUTI infection and to determine their antibiotic profile

Methods: The present cross-sectional study included 50 patients admitted to medicine and surgery wards in our hospital. The urine from catheter is collected from each patient and subjected to culture and antibiotic susceptibility testing.

Results: The prevalence of catheter associated urinary tract infection in our hospital is about 20% and asymptomatic bacterial colonization is 50% which is nearequal to Danchaivijitr S et al study. The common pathogens found in this study are Escherichia coli (22%), Klebsiella (18%), Enterobacter (8%), Staph. aureus (6%) which include MRSA (4%), Pseudomonas (6%), Enterococcus (4%), Candida sps. (4%) Andproteus (2%).

Conclusions: CAUTI has low prevalence 20% and asymptomatic colonisation 50% in our hospital with common pathogen being Escherichia coli. It is one of the important notable pathogen causing nosocomial infection among admitted patients. The patients present mainly as asymptomatic bacterial colonisation and risk of CAUTI increases with longer duration of catheterisation. All patients those who had catheter for more than 6 days, aged 60 and above, should be checked for UTI symptoms. And their urine should be cultured regularly in order to diagnose and prevent CAUTI and its complications which are very dangerous and difficult to treat.


Asymptomatic colonisation, CAUTI, UTI

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Jaggi N, Sissodia P. Multimodal supervision programme to reduce catheter associated urinary tract infections and its analysis to enable focus on labour and cost effective infection control measures in a tertiary care hospital in India. J Clin Diagn Res. 2012;6:1372-6.

Kunin CM. Care of the urinary catheter. In: Urinary Tract Infections: Detection, prevention and management. 5th ed. Philadelphia, Pa: Lippincott Williams and Wilkins; 1997:227-79.

Stamm WE. Catheter-associated urinary tract infections: Epidemiology, pathogenesis and prevention. Am J Med. 1991;91Suppl 3B:65-71S.

Silver SA, Baillie L, Simor AE. Positive urine cultures: A major cause of inappropriate antimicrobial use in hospitals. Can J Infect Dis Med Microbiol. 2009;20:107-11.

Leone M, Perrin AS, Granier I, Visintini P, Blasco V, Antonini F, et al. A randomized trial of catheter change and short course of antibiotics for asymptomatic bacteriuria in catheterized ICU patients. Intensive Care Med. 2007;33:726-9.

Saint S. Clinical and economic consequences of nosocomial catheter-related bacteriuria. Am J Infect Cont. 2000;28(1):68-75.

Gokula RR, Hickner JA, Smith MA. Inappropriate use of urinary catheters in elderly patients at a midwestern community teaching hospital. Am J Infect Cont. 2004;32(4):196-9.

Beaujean DJ, Blok HE, Vandenbroucke-Grauls CM, Weersink AJ, Raymakers JA, Verhoef J. Surveillance of nosocomial infections in geriatric patients. J Hospital Infect. 1997;36(4):275-84.

Saint S, Lipsky BA, Goold SD. Indwelling urinary catheters: a one-pointrestraint? Ann Intern Med. 2002;137(2):125-7.

Smith J. Indwelling catheter management: From habit-based to evidence-based practice. Ostomy Wound Management. 2003;49:34-45.

Kang CI, Chung DR, Son JS, Ko KS, Peck KR, Song JH, et al. Korean network for study of infectious diseases. Clinical significance of nosocomial acquisition in urinary tract-related bacteremia caused by gram-negative bacilli. Am J Infect Cont. 2011;39(2):135-40.

Danchaivijitr S, Dhiraputra C, Cherdrungsi R, Jintanothaitavorn D, Srihapol N. Catheter-associated urinary tract infection. J Med Assoc Thai. 2002;88(Suppl 10):S26-30.

Hidron AI, Edwards JR, Patel J. NHSN annual update: antimicrobial-resistant pathogens associated with healthcare-associated infections: annual summary of data reported to the national healthcare safety network at the centers for disease control and prevention, 2006-2007. Infect Control Hosp Epidemiol. 2008;29(11):996-1011.

Greene L, Marx J, Oriola S. Guide to the elimination of catheter-associated urinary tract infections (CAUTIs). The Association for Professionals in Infection Control and Epidemiology (APIC) Washington, DC; 2008.

Nicolle LE. Catheter-related urinary tract infection. Drugs and Aging. 2005;22(8):627.

Tambyah PA, Maki DG. Catheter-associated urinary tract infection is rarely symptomatic: a prospective study of 1,497 catheterized patients. Arch Intern Med. 2000;160:678-82.

Tandogdu Z, Wagenlehner FM. Global epidemiology of urinary tract infections. Curr Opin Infect Dis. 2016;29(1):73-9.