Hospital-acquired pneumonia causes: Difference between revisions
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==Overview== | ==Overview== | ||
The majority of cases related to various gram-negative bacilli (52%) and [[S. aureus]] (19%). Others are [[Haemophilus]] spp. (5%). In the ICU results were S. aureus(17.4%), [[P. aeruginosa]] (17.4%), [[Klebsiella pneumoniae]] and [[Enterobacter]] spp. (18.1%), and [[Haemophilus influenzae]] (4.9%). Viruses -[[influenza]] and [[respiratory syncytial virus]] and, in the immunocompromised host, [[cytomegalovirus]]- cause 10-20% of infections. | The majority of cases related to various gram-negative bacilli (52%) and [[S. aureus]] (19%). Others are [[Haemophilus]] spp. (5%). In the ICU results were S. aureus(17.4%), [[P. aeruginosa]] (17.4%), [[Klebsiella pneumoniae]] and [[Enterobacter]] spp. (18.1%), and [[Haemophilus influenzae]] (4.9%). Viruses -[[influenza]] and [[respiratory syncytial virus]] and, in the immunocompromised host, [[cytomegalovirus]]- cause 10-20% of infections. | ||
===Etiological agents=== | |||
====Aerobic gram negative pathogens==== | |||
* Commonly polymicrobial | |||
* Common microbial agents include: | |||
** Pseudomonas aeruginosa | |||
** Escherichia coli | |||
** Klebsiella pneumoniae, | |||
** Acinetobacter | |||
====Gram-positive pathogens==== | |||
* Staphylococcus aureus | |||
* Methicillin resistant staphylococcus aureus (MRSA) (common in patients with diabetes mellitus, head trauma, and in ICU) | |||
==References== | ==References== | ||
Revision as of 18:50, 12 September 2012
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Hospital-acquired pneumonia Microchapters |
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Differentiating Hospital-Acquired Pneumonia from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Hospital-acquired pneumonia causes On the Web |
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American Roentgen Ray Society Images of Hospital-acquired pneumonia causes |
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Directions to Hospitals Treating Hospital-acquired pneumonia |
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Risk calculators and risk factors for Hospital-acquired pneumonia causes |
Editor(s)-in-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753; Philip Marcus, M.D., M.P.H.[2]
Overview
The majority of cases related to various gram-negative bacilli (52%) and S. aureus (19%). Others are Haemophilus spp. (5%). In the ICU results were S. aureus(17.4%), P. aeruginosa (17.4%), Klebsiella pneumoniae and Enterobacter spp. (18.1%), and Haemophilus influenzae (4.9%). Viruses -influenza and respiratory syncytial virus and, in the immunocompromised host, cytomegalovirus- cause 10-20% of infections.
Etiological agents
Aerobic gram negative pathogens
- Commonly polymicrobial
- Common microbial agents include:
- Pseudomonas aeruginosa
- Escherichia coli
- Klebsiella pneumoniae,
- Acinetobacter
Gram-positive pathogens
- Staphylococcus aureus
- Methicillin resistant staphylococcus aureus (MRSA) (common in patients with diabetes mellitus, head trauma, and in ICU)