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Incidence of catheter-related infections in hospitalized cardiovascular patients
Kambiz Mozaffari1, Hooman Bakhshandeh2, Hadi Khalaj1
1Rajaie Cardiovascular, Medical and Research Center, Tehran University of Medical Sciences, Tehran, IR Iran.
Insights
Catheter Related Blood stream Infections (CRBSI) are common in cardiovascular patients. This study found a high incidence of bacterial catheter colonization in Iran, with Staph Albus and Enterococcus being most frequent.
Area of Science:
- Cardiovascular Medicine
- Infectious Diseases
- Medical Microbiology
Background:
- Catheter Related Blood stream Infections (CRBSI) pose a significant risk to patients with cardiovascular implant devices.
- Limited research exists on bacterial catheter colonization in Iranian cardiovascular patients.
Purpose of the Study:
- To determine the incidence of bacterial catheter colonization in the largest Iranian cardiovascular center.
- To identify common bacterial species and their antibiotic sensitivities.
Main Methods:
- Prospective study of 60 patients undergoing arterial or venous catheterization for ≥48 hours.
- Catheter cultures and simultaneous blood cultures were performed.
- Data collected from March 2011 to 2012 at Rajaie Cardiovascular Medical and Research Center, Tehran.
Main Results:
- A high rate of catheter colonization was observed, with 73.3% (44/60) of catheters showing significant bacterial growth.
- Staphylococcus Albus (32%), Enterococcus (27%), and Acinetobacter (11%) were the most prevalent isolates.
- Antibiotic sensitivity testing showed gram-positive cocci were sensitive to Vancomycin and Linezolid, while gram-negative bacilli responded to Amikacin, Gentamicin, Tobramycin, and Imipenem.
Conclusions:
- Catheter infections in this cohort likely originated from sources beyond normal skin flora.
- Findings aid in understanding infection transmission routes and developing prevention strategies for CRBSI.
Background:
Catheter Related Blood stream Infections (CRBSI) are prevalent and a potentially fatal complication pertaining to cardiovascular implant devices. There have been no major studies on bacterial colonization of catheters in cardiovascular patients in Iran.
Objectives:
To evaluate the incidence of catheter colonization of bacteria in the largest Iranian cardiovascular center.
Patients And Methods:
March 2011 to 2012, Cauterization procedures performed on 60 patients hospitalized in Rajaie Cardiovascular Medical and Research Center, Tehran, Iran, with arterial or venous catheterization, inserted 48 hours or more, catheter evaluations done by culture methods. Blood cultures were also obtained simultaneously.
Results:
Forty-four out of 60 catheters (73.3%) were positive with a significant colony count. Of 44 positive cases, 11 patients had positive blood culture. Three most frequently isolated microorganisms were Staph Albus [14 (32%)], Entrococcu [12 (27%)] and Acinetobacter [5 (11%)]. gram-positive cocci were sensitive to Vancomycin and Linezolid and gram-negative bacilli were sensitive to Amikacin, Gentamicin, Tobramycin and Imipenem.
Conclusions:
The study findings revealed that the catheter infection in our patients had sources other than normal skin flora. These results will assist in determining the possible source of the infections, furthermore, how they are transmitted, moreover aid in controlling and preventing these dangerous in- infections.
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