Clinical Relevance of Mycobacterium xenopi in the Netherlands

Sample size: 49 publication 10 minutes Evidence: moderate

Author Information

Author(s): van Ingen Jakko, Boeree Martin J., de Lange Wiel C.M., Hoefsloot Wouter, Bendien Saar A., Magis-Escurra Cecile, Dekhuijzen Richard, van Soolingen Dick

Primary Institution: Radboud University Nijmegen Medical Center

Hypothesis

What is the clinical relevance and determinants of Mycobacterium xenopi isolation in patients?

Conclusion

Clinical isolation of Mycobacterium xenopi is relevant for 51% of cases, with genotype being a major determinant.

Supporting Evidence

51% of patients met the diagnostic criteria for true infection.
Genotype II was significantly associated with true infection.
Cavitary lesions on chest radiograph were linked to true infection.
Acid-fast bacilli positivity was associated with meeting diagnostic criteria.
Treatment regimens varied widely among patients.
High cure rates were observed despite variations in treatment.
Patients with pre-existing pulmonary disease were more likely to be infected.
Some patients recovered without treatment, raising questions about the necessity of treatment.

Takeaway

Doctors looked at medical records of patients with a germ called Mycobacterium xenopi to see how often it really makes people sick. They found that it was a real problem for about half of the patients.