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Letters |15 May 1996

Ventilator Circuit Changes

Lenore E. Asbel, MD; Caroline C. Johnson, MD

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Author, Article, and Disclosure Information
  • Medical College of Pennsylvania; Philadelphia, PA 19129
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TO THE EDITOR:
In their recent article, Kollef and associates [1] studied whether routinely changing ventilator circuitry affected the incidence of nosocomial pneumonia. We were surprised to see that the results were not expressed as rates of infected patients per 1000 ventilator-days, as recommended by the Hospital Infection Control Practices Advisory Committee and the Centers for Disease Control and Prevention's National Center for Infectious Diseases for surveillance of nosocomial pneumonias [2]. The authors report the average duration of mechanical ventilation but not actual rates of infection. Thus, their results cannot be easily compared with those of other studies or with hospital surveillance data [3]. As has been previously stated, “meaningful comparisons [in hospital epidemiology] can be made only if uniform definitions of rates are adopted” [4].
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Asbel LE, Johnson CC. Ventilator Circuit Changes. Ann Intern Med. 1996;124:929. doi: 10.7326/0003-4819-124-10-199605150-00024

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Published: Ann Intern Med. 1996;124(10):929.

DOI: 10.7326/0003-4819-124-10-199605150-00024

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Print ISSN: 0003-4819 | Online ISSN: 1539-3704

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