Pan-Resistant Stenotrophomonas Infections Management

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Questions and Answers

What percentage of mortality rate is described in pan-resistant Stenotrophomonas infections, except in two case series with small samples?

  • Around 25%
  • More than 50% (correct)
  • Less than 20%
  • Between 30-40%

What is the total number of deaths described in almost 10 different articles known at the time of this review?

  • 5 cases
  • 20 cases
  • 51 cases (correct)
  • 10 cases

What is the range of sample sizes in the described case series or case studies?

  • 5-10 patients
  • 50-100 patients
  • 10-46 patients (correct)
  • 20-50 patients

What factors have been identified as having potential influence on mortality rates in pan-resistant Stenotrophomonas infections?

<p>Presence of bacteremia, immunosuppression, and severity scores at time of HAI (A)</p> Signup and view all the answers

What percentage of variation in risk of death is explained through a model combining severity scores at HAI onset, clinical stability at specimen collection, microbiological culture site and positivity and non-fermenting MDRO?

<p>73% (D)</p> Signup and view all the answers

How many critically ill patients with XDR-ST infection were studied in the model that explained variation in risk of death?

<p>177 patients (D)</p> Signup and view all the answers

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Study Notes

Pan-Resistant Stenotrophomonas Infections

  • There is a lack of evidence on mortality rates in deadly pan-resistant Stenotrophomonas infections due to limited global case series with small samples of critically ill patients.
  • Case series and case studies on pan-resistant Stenotrophomonas infections are uncontrolled, non-randomized, and retrospective, with modest sample sizes ranging from 10 to 46 patients.
  • The global number of deaths from pan-resistant Stenotrophomonas infections is 51 cases, described in almost 10 different articles.

Mortality Rates

  • Mortality in pan-resistant Stenotrophomonas infections is extremely high, exceeding 50% in most cases.
  • Two case series with small samples reported lower mortality rates, ranging from 37% to 38%.

Risk Factors for Mortality

  • Presence of bacteremia is a risk factor for mortality in pan-resistant Stenotrophomonas infections.
  • Immunosuppression increases the risk of mortality in pan-resistant Stenotrophomonas infections.
  • High severity scores at the time of hospital-acquired infection (HAI), such as SOFA or SAPS II, are associated with higher mortality rates.
  • A model combining severity scores at HAI onset, clinical stability at specimen collection, microbiological culture site, and positivity and non-fermenting MDRO explained 73% of the variation in risk of death in 177 critically ill patients with XDR-ST infection.

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