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In health care, a '''cross infection''', also called a '''hospital infection''' or a '''nosocomial infection''', is "any infection which a patient contracts in a health-care institution."<ref>{{MeSH}}</ref>
In health care, a '''cross infection''', also called a '''hospital infection''' or a '''nosocomial infection''', is "any infection which a patient contracts in a health-care institution."<ref>{{MeSH}}</ref> Important microbes are methicillin-resistant ''[[Staphylococcus aureus]]'' (MRSA), ''[[Pseudomonas aeruginosa]]'' and ''[[Clostridium difficile]].''


Examples include [[ventilator-associated pneumonia]], [[surgical wound infection|surgical site infections]], and infections of [[indwelling catheter]]s, such as [[central venous catheter]]s and [[urinary catheter]]s.
Examples include [[ventilator-associated pneumonia]], [[surgical wound infection|surgical site infections]], infections associated with [[indwelling catheter]]s, such as after [[urinary catheterization]]. ''[[Legionella pneumophila]]'' outbreaks have been associated with contaminated ventilation systems, and devices assumed to be safe, such as bedside steam humidifiers.


Important microbes are methicillin-resistant [[Staphylococcus aureus]] and [[Clostridium difficile]].
==Prevention==
{{main|Infection control}}
 
Prevention of cross infections is a priority of the U.S. [http://www.hhs.gov Department of Health & Human Services] (HHS) and address:<ref name="urlHHS Action Plan to Prevent Healthcare-Associated Infections: Executive Summary">{{cite web |url=http://www.hhs.gov/ophs/initiatives/hai/exsummary.html |title=HHS Action Plan to Prevent Healthcare-Associated Infections: Executive Summary |author=Anonymous |authorlink= |coauthors= |date=2009 |format= |work= |publisher=U.S. Department of Health & Human Services |pages= |language= |archiveurl= |archivedate= |quote= |accessdate=2009-01-07}}</ref><ref name="urlHHS Action Plan to Prevent Healthcare-Associated Infections: Prevention – Prioritized Recommendations">{{cite web |url=http://www.hhs.gov/ophs/initiatives/hai/prevention.html |title=HHS Action Plan to Prevent Healthcare-Associated Infections: Prevention – Prioritized Recommendations |author=Anonymous |authorlink= |coauthors= |date=2009 |format= |work= |publisher=U.S. Department of Health & Human Services |pages= |language= |archiveurl= |archivedate= |quote= |accessdate=2009-01-07}}</ref>
* Recommendations for Appropriate [[urinary catheterization]]
* Prevention of Intravascular Catheter-Associated Infections
* Prevention of Surgical Site Infections
* Prevention of Ventilator-Associated Pneumonia


Prevention of cross infections is a priority of the [http://www.ihi.org Institute for Healthcare Improvement] (IHI).  
Prevention of cross infections is a priority of the [http://www.ihi.org Institute for Healthcare Improvement] (IHI).  
* From the IHI 100,000 Lives Campaign<ref name="pmid16418469">{{cite journal |author=Berwick DM, Calkins DR, McCannon CJ, Hackbarth AD |title=The 100,000 lives campaign: setting a goal and a deadline for improving health care quality |journal=JAMA |volume=295 |issue=3 |pages=324–7 |year=2006 |pmid=16418469 |doi=10.1001/jama.295.3.324}}</ref><ref name="titleInstitute for Healthcare Improvement: Overview of the 100,000 Lives Campaign">{{cite web |url=http://www.ihi.org/IHI/Programs/Campaign/100kCampaignOverviewArchive.htm |title=Institute for Healthcare Improvement: Overview of the 100,000 Lives Campaign |accessdate=2008-01-03 |author= |authorlink= |coauthors= |date= |format= |work= |publisher= |pages= |language= |archiveurl= |archivedate= |quote=}}</ref>
* From the IHI 100,000 Lives Campaign<ref name="pmid16418469">{{cite journal |author=Berwick DM, Calkins DR, McCannon CJ, Hackbarth AD |title=The 100,000 lives campaign: setting a goal and a deadline for improving health care quality |journal=JAMA |volume=295 |issue=3 |pages=324–7 |year=2006 |pmid=16418469 |doi=10.1001/jama.295.3.324}}</ref><ref name="titleInstitute for Healthcare Improvement: Overview of the 100,000 Lives Campaign">{{cite web |url=http://www.ihi.org/IHI/Programs/Campaign/100kCampaignOverviewArchive.htm |title=Institute for Healthcare Improvement: Overview of the 100,000 Lives Campaign |accessdate=2008-01-03 |author= |authorlink= |coauthors= |date= |format= |work= |publisher= |pages= |language= |archiveurl= |archivedate= |quote=}}</ref>
**"Prevent [[central venous catheter|Central Line]] Infections…by implementing a series of interdependent, scientifically grounded steps called the "Central Line Bundle"."
**"Prevent [[central venous catheter|Central Line]] Infections…by implementing a series of interdependent, scientifically grounded steps called the "Central Line Bundle"."
**"Prevent [[surgical wound infection|Surgical Site Infections]]…by reliably delivering the correct perioperative antibiotics at the proper time." Significant reduction may be achieved by procedures as simple as proper hand washing, use of clippers rather than razors to shave the site of surgery, or prompt administration of [[antibiotic]]s following surgery.<ref name="2007 Report"/><ref>[http://www.medscape.com/viewarticle/535487 "Nosocomial Infection: Approach to Postoperative Symptoms of Infection"], From ACS Surgery Online, Posted 06/07/2006, E. Patchen Dellinger, M.D., F.A.C.S.</ref>
**"Prevent [[surgical wound infection|Surgical Site Infections]]…by reliably delivering the correct perioperative antibiotics at the proper time." Significant reduction may be achieved by procedures as simple as proper hand washing, use of clippers rather than razors to shave the site of surgery, or prompt administration of [[antibiotic]]s following surgery.<ref name="2007 Report">[http://www.ihi.org/NR/rdonlyres/858C562A-A535-4344-9573-3AACD1E01CA1/0/2007ProgressReportFINAL.pdf “Status Quon’t”, IHI’s 2007 Progress Report (PDF file)]</ref><ref>[http://www.medscape.com/viewarticle/535487 "Nosocomial Infection: Approach to Postoperative Symptoms of Infection"], From ACS Surgery Online, Posted 06/07/2006, E. Patchen Dellinger, M.D., F.A.C.S.</ref>
**"Prevent [[ventilator-associated pneumonia|Ventilator-AssociatedPneumonia]]…by implementing a series of interdependent, scientifically grounded steps including the 'Ventilator Bundle'."
**"Prevent [[ventilator-associated pneumonia|Ventilator-AssociatedPneumonia]]…by implementing a series of interdependent, scientifically grounded steps including the 'Ventilator Bundle'."
*From the IHI 5 Million Lives Campaign:<ref name="titleInstitute for Healthcare Improvement: Campaign">{{cite web |url=http://www.ihi.org/IHI/Programs/Campaign |title=Institute for Healthcare Improvement: Campaign |accessdate=2008-01-03 |author= |authorlink= |coauthors= |date= |format= |work= |publisher= |pages= |language= |archiveurl= |archivedate= |quote=}}</ref><ref>[http://www.ihi.org/IHI/Programs/Campaign/Campaign.htm?TabId=1 "Overview of the 5 Million Lives Campaign"]</ref> <ref>[http://www.infectioncontroltoday.com/hotnews/6ch127223175711.html "IHI Launches National Initiative to Reduce Medical Harm in U.S. Hospitals, Builds on 100,000 Lives Campaign"] ''Infection Control Today'', December 12, 2006</ref>
*From the IHI 5 Million Lives Campaign:<ref name="titleInstitute for Healthcare Improvement: Campaign">{{cite web |url=http://www.ihi.org/IHI/Programs/Campaign |title=Institute for Healthcare Improvement: Campaign |accessdate=2008-01-03 |author= |authorlink= |coauthors= |date= |format= |work= |publisher= |pages= |language= |archiveurl= |archivedate= |quote=}}</ref><ref>[http://www.ihi.org/IHI/Programs/Campaign/Campaign.htm?TabId=1 "Overview of the 5 Million Lives Campaign"]</ref> <ref>[http://www.infectioncontroltoday.com/hotnews/6ch127223175711.html "IHI Launches National Initiative to Reduce Medical Harm in U.S. Hospitals, Builds on 100,000 Lives Campaign"] ''Infection Control Today'', December 12, 2006</ref>
**"Reduce Methicillin-Resistant [[Staphylococcus aureus]] (MRSA) infection…by reliably implementing scientifically proven infection control practices."
**"Reduce Methicillin-Resistant [[Staphylococcus aureus]] (MRSA) infection…by reliably implementing scientifically proven infection control practices."


[[Clinical practice guideline]]s address the prevention of cross infections.<ref>{{Cite journal | doi = 10.1086/591060 | volume = 29 | issue = s1 | pages = S12-S21 | last = Yokoe
Some sources may be obscure ''[[Legionella]]'' spp., known to colonize building heating, ventilation and air conditioning (HVAC) systems, has caused infection from hospital equipment that traditionally has been considered resistant to bacterial growth, such as heated bedside humidifiers. <ref>{{citation |journal = Morbidity and Mortality Weekly Report |date = March 26, 2004  | volume = 53(RR03) | pages = 1-36 |title = Guidelines for Preventing Health-Care--Associated Pneumonia, 2003
| first = Deborah S. | coauthors = Leonard A. Mermel, Deverick J. Anderson, Kathleen M. Arias, Helen Burstin, David P. Calfee, Susan E. Coffin, Erik R. Dubberke, Victoria Fraser, Dale N. Gerding, Frances A. Griffin, Peter Gross, Keith S. Kaye, Michael Klompas, Evelyn Lo, Jonas Marschall, Lindsay Nicolle, David A. Pegues, Trish M. Perl, Kelly Podgorny, Sanjay Saint, Cassandra D. Salgado, Robert A. Weinstein, Robert Wise, David Classen
|author = Recommendations of CDC and the Healthcare Infection Control Practices Advisory Committee }}</ref> The replacement of heated with ultrasonic humidifiers reduced a risk of burns but increased the risk of infection; current practices include sterilizing humidifiers between patients, changing water frequently, and using sterile water.
| title = Executive Summary: A Compendium of Strategies to Prevent Healthcare-Associated Infections in Acute Care Hospitals  | journal = Infection Control and Hospital Epidemiology
 
| accessdate = 2008-10-10 | date = 2008-10-01 | url = http://www.journals.uchicago.edu/doi/abs/10.1086/591060 }}</ref>
==Surveillance==
==Manifestations of cross infections==
Nosocomial infections should be suspected when a hospitalized patients develops a [[fever]]<ref name="pmid3357068">{{cite journal |author=Bor DH, Makadon HJ, Friedland G, Dasse P, Komaroff AL, Aronson MD |title=Fever in hospitalized medical patients: characteristics and significance |journal=J Gen Intern Med |volume=3 |issue=2 |pages=119–25 |year=1988 |pmid=3357068 |doi= |url= |issn=}}</ref><ref name="pmid3826121">{{cite journal |author=McGowan JE, Rose RC, Jacobs NF, Schaberg DR, Haley RW |title=Fever in hospitalized patients. With special reference to the medical service |journal=Am. J. Med. |volume=82 |issue=3 Spec No |pages=580–6 |year=1987 |month=March |pmid=3826121 |doi= |url= |issn=}}</ref> or [[leukocytosis]]<ref name="pmid12032893">{{cite journal |author=Wanahita A, Goldsmith EA, Musher DM |title=Conditions associated with leukocytosis in a tertiary care hospital, with particular attention to the role of infection caused by clostridium difficile |journal=Clin. Infect. Dis. |volume=34 |issue=12 |pages=1585–92 |year=2002 |month=June |pmid=12032893 |doi=10.1086/340536 |url=http://www.journals.uchicago.edu/cgi-bin/resolve?CID011480 |issn=}}</ref>.
 
==Treatment==
{| class="wikitable" align="right"
|+ Treatment of drug resistant organisms<ref name="pmid20463340">{{cite journal| author=Peleg AY, Hooper DC| title=Hospital-acquired infections due to gram-negative bacteria. | journal=N Engl J Med | year= 2010 | volume= 362 | issue= 19 | pages= 1804-13 | pmid=20463340
| url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=clinical.uthscsa.edu/cite&retmode=ref&cmd=prlinks&id=20463340 | doi=10.1056/NEJMra0904124 }} </ref>
|-
! [[Bacterium]]
! [[Antibiotic]]
|-
| Extended-spectrum β-lactamase (ESBL) producing
| [[Carbapenem]] such as [[meropenem]]
|-
| ''K. pneumoniae'' carbapenemase (KPC) producing
| [[Polymyxin]]s such as [[colistin]]
|}
Nosocomially-acquired infection often are resistant to multiple [[antibiotic]]s. <ref name=CDC-MDR-2006>{{citation
|title = Management of Multidrug-Resistant Organisms In Healthcare Settings,
| year = 2006
| author = Jane D. Siegel, Emily Rhinehart, Marguerite Jackson, Linda
Chiarello, the Healthcare Infection Control Practices Advisory Committee
| publisher = Centers for Disease Control
| url = http://www.cdc.gov/ncidod/dhqp/pdf/ar/mdroGuideline2006.pdf}}</ref> Given the ability for [[antibiotic resistance]] to transfer among organisms, less common antibiotics may be needed to treat multidrug-resistant forms.  
 
Treatment ventilator-associated [[pneumonia]] (VAP) may be for 8 days unless caused by a nonfermenting gram-negative bacilli, including ''Pseudomonas aeruginosa''.<ref name="pmid14625336">{{cite journal| author=Chastre J, Wolff M, Fagon JY, Chevret S, Thomas F, Wermert D et al.| title=Comparison of 8 vs 15 days of antibiotic therapy for ventilator-associated pneumonia in adults: a randomized trial. | journal=JAMA | year= 2003 | volume= 290 | issue= 19 | pages= 2588-98 | pmid=14625336
| url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=clinical.uthscsa.edu/cite&retmode=ref&cmd=prlinks&id=14625336 | doi=10.1001/jama.290.19.2588 }}  [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=clinical.uthscsa.edu/cite&retmode=ref&cmd=prlinks&id=15341450 Review in: ACP J Club. 2004 Sep-Oct;141(2):30] </ref>
 
Unfortunately, some of these antibiotics may introduce problems; one such drug recommended for MRSA, [[clindamycin]], is associated with ''[[Clostridium difficile]]'' superinfection. <ref name=Gorwitz>{{citation  | author = Gorwitz RJ, Jernigan DB, Powers JH, Jernigan JA, and Participants in the CDC Convened Experts’ Meeting on Management of MRSA in the Community  | id = Gorwitz  | title = Strategies for clinical management of MRSA in the community: Summary of an experts’ meeting convened by the Centers for Disease Control and Prevention  | year = 2006  | url = http://www.cdc.gov/ncidod/dhqp/ar_mrsa_ca.html}}</ref>


==References==
==References==
<references/>
<references/>[[Category:Suggestion Bot Tag]]

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In health care, a cross infection, also called a hospital infection or a nosocomial infection, is "any infection which a patient contracts in a health-care institution."[1] Important microbes are methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa and Clostridium difficile.

Examples include ventilator-associated pneumonia, surgical site infections, infections associated with indwelling catheters, such as after urinary catheterization. Legionella pneumophila outbreaks have been associated with contaminated ventilation systems, and devices assumed to be safe, such as bedside steam humidifiers.

Prevention

For more information, see: Infection control.


Prevention of cross infections is a priority of the U.S. Department of Health & Human Services (HHS) and address:[2][3]

  • Recommendations for Appropriate urinary catheterization
  • Prevention of Intravascular Catheter-Associated Infections
  • Prevention of Surgical Site Infections
  • Prevention of Ventilator-Associated Pneumonia

Prevention of cross infections is a priority of the Institute for Healthcare Improvement (IHI).

  • From the IHI 100,000 Lives Campaign[4][5]
    • "Prevent Central Line Infections…by implementing a series of interdependent, scientifically grounded steps called the "Central Line Bundle"."
    • "Prevent Surgical Site Infections…by reliably delivering the correct perioperative antibiotics at the proper time." Significant reduction may be achieved by procedures as simple as proper hand washing, use of clippers rather than razors to shave the site of surgery, or prompt administration of antibiotics following surgery.[6][7]
    • "Prevent Ventilator-AssociatedPneumonia…by implementing a series of interdependent, scientifically grounded steps including the 'Ventilator Bundle'."
  • From the IHI 5 Million Lives Campaign:[8][9] [10]
    • "Reduce Methicillin-Resistant Staphylococcus aureus (MRSA) infection…by reliably implementing scientifically proven infection control practices."

Some sources may be obscure Legionella spp., known to colonize building heating, ventilation and air conditioning (HVAC) systems, has caused infection from hospital equipment that traditionally has been considered resistant to bacterial growth, such as heated bedside humidifiers. [11] The replacement of heated with ultrasonic humidifiers reduced a risk of burns but increased the risk of infection; current practices include sterilizing humidifiers between patients, changing water frequently, and using sterile water.

Surveillance

Manifestations of cross infections

Nosocomial infections should be suspected when a hospitalized patients develops a fever[12][13] or leukocytosis[14].

Treatment

Treatment of drug resistant organisms[15]
Bacterium Antibiotic
Extended-spectrum β-lactamase (ESBL) producing Carbapenem such as meropenem
K. pneumoniae carbapenemase (KPC) producing Polymyxins such as colistin

Nosocomially-acquired infection often are resistant to multiple antibiotics. [16] Given the ability for antibiotic resistance to transfer among organisms, less common antibiotics may be needed to treat multidrug-resistant forms.

Treatment ventilator-associated pneumonia (VAP) may be for 8 days unless caused by a nonfermenting gram-negative bacilli, including Pseudomonas aeruginosa.[17]

Unfortunately, some of these antibiotics may introduce problems; one such drug recommended for MRSA, clindamycin, is associated with Clostridium difficile superinfection. [18]

References

  1. ↑ Anonymous (2024), Cross infection (English). Medical Subject Headings. U.S. National Library of Medicine.
  2. ↑ Anonymous (2009). HHS Action Plan to Prevent Healthcare-Associated Infections: Executive Summary. U.S. Department of Health & Human Services. Retrieved on 2009-01-07.
  3. ↑ Anonymous (2009). HHS Action Plan to Prevent Healthcare-Associated Infections: Prevention – Prioritized Recommendations. U.S. Department of Health & Human Services. Retrieved on 2009-01-07.
  4. ↑ Berwick DM, Calkins DR, McCannon CJ, Hackbarth AD (2006). "The 100,000 lives campaign: setting a goal and a deadline for improving health care quality". JAMA 295 (3): 324–7. DOI:10.1001/jama.295.3.324. PMID 16418469. Research Blogging.
  5. ↑ Institute for Healthcare Improvement: Overview of the 100,000 Lives Campaign. Retrieved on 2008-01-03.
  6. ↑ “Status Quon’t”, IHI’s 2007 Progress Report (PDF file)
  7. ↑ "Nosocomial Infection: Approach to Postoperative Symptoms of Infection", From ACS Surgery Online, Posted 06/07/2006, E. Patchen Dellinger, M.D., F.A.C.S.
  8. ↑ Institute for Healthcare Improvement: Campaign. Retrieved on 2008-01-03.
  9. ↑ "Overview of the 5 Million Lives Campaign"
  10. ↑ "IHI Launches National Initiative to Reduce Medical Harm in U.S. Hospitals, Builds on 100,000 Lives Campaign" Infection Control Today, December 12, 2006
  11. ↑ Recommendations of CDC and the Healthcare Infection Control Practices Advisory Committee (March 26, 2004), "Guidelines for Preventing Health-Care--Associated Pneumonia, 2003", Morbidity and Mortality Weekly Report 53(RR03): 1-36
  12. ↑ Bor DH, Makadon HJ, Friedland G, Dasse P, Komaroff AL, Aronson MD (1988). "Fever in hospitalized medical patients: characteristics and significance". J Gen Intern Med 3 (2): 119–25. PMID 3357068. [e]
  13. ↑ McGowan JE, Rose RC, Jacobs NF, Schaberg DR, Haley RW (March 1987). "Fever in hospitalized patients. With special reference to the medical service". Am. J. Med. 82 (3 Spec No): 580–6. PMID 3826121. [e]
  14. ↑ Wanahita A, Goldsmith EA, Musher DM (June 2002). "Conditions associated with leukocytosis in a tertiary care hospital, with particular attention to the role of infection caused by clostridium difficile". Clin. Infect. Dis. 34 (12): 1585–92. DOI:10.1086/340536. PMID 12032893. Research Blogging.
  15. ↑ Peleg AY, Hooper DC (2010). "Hospital-acquired infections due to gram-negative bacteria.". N Engl J Med 362 (19): 1804-13. DOI:10.1056/NEJMra0904124. PMID 20463340. Research Blogging.
  16. ↑ Jane D. Siegel, Emily Rhinehart, Marguerite Jackson, Linda Chiarello, the Healthcare Infection Control Practices Advisory Committee (2006), Management of Multidrug-Resistant Organisms In Healthcare Settings,, Centers for Disease Control
  17. ↑ Chastre J, Wolff M, Fagon JY, Chevret S, Thomas F, Wermert D et al. (2003). "Comparison of 8 vs 15 days of antibiotic therapy for ventilator-associated pneumonia in adults: a randomized trial.". JAMA 290 (19): 2588-98. DOI:10.1001/jama.290.19.2588. PMID 14625336. Research Blogging. Review in: ACP J Club. 2004 Sep-Oct;141(2):30
  18. ↑ Gorwitz RJ, Jernigan DB, Powers JH, Jernigan JA, and Participants in the CDC Convened Experts’ Meeting on Management of MRSA in the Community (2006), Strategies for clinical management of MRSA in the community: Summary of an experts’ meeting convened by the Centers for Disease Control and Prevention, Gorwitz
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