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DNA-based Testing in BAL of Lung Transplant Recipients With Suspected Non-viral Lower Respiratory Tract Infection

Conditions
Lower Respiratory Tract and Lung Infections
Registration Number
NCT02568358
Lead Sponsor
Hannover Medical School
Brief Summary

Lung transplantation (LTx) , DNA-based testing.

Performance of DNA-based testing of bacterial and fungal pathogens in comparison to standard testing.

Experimental intervention: DNA-based testing of BAL fluid.

Detailed Description

Cohen's kappa of any pathogen isolation by DNA-based testing vs. standard cultures in comparison to the final diagnosis of non-viral lower respiratory tract infection.

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
48
Inclusion Criteria
  • patients after lung transplantation (single, double or combined)
  • suspicion of non-viral lower respiratory tract infection as defined by at least 2 out of
  • new onset of malaise
  • new or progressive pulmonary infiltrate
  • hypoxemia (SpO2/SaO2 <92% or need for oxygen)
  • temperature of 38 o C or above within 7 days
  • purulent (yellow or greenish) sputum
  • CRP of 30 mg/l or above
  • PCT of 0,5 µg/l or above
Exclusion Criteria
  • no informed consent

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Cohen's kappa of any pathogen isolation by DNA-based testing vs. standard cultures in comparison to the final diagnosis of non-viral lower respiratory tract infection6 month

Cohen's kappa measures the agreement between methods and the final clinical diagnosis. Both methods (DNA-based testing and standard cultures) will result in isolation of a non-viral pathogen or no isolation of a pathogen. A final clinical diagnosis will classify patients clinically in two categories as non-viral lower respiratory tract infection or no non-viral lower respiratory tract infection usually made 48-72 hours made after sampling. Cohen's kappa will be compared between the two methods.

Secondary Outcome Measures
NameTimeMethod
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