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Published on: July 6, 2013
Active cytomegalovirus infection in patients with septic shock
Lutz von Müller1, Anke Klemm, Manfred Weiss
1University Hospital Ulm, Ulm, Germany.
Abstract:
Cytomegalovirus (CMV) is a pathogen of emerging importance for patients with septic shock. In this prospective study, 25 immunocompetent CMV-seropositive patients with septic shock and an intensive care unit stay of > or =7 days were monitored by using quantitative pp65-antigenemia assay, shell vial culture, and virus isolation. Within 2 weeks, active CMV infection with low-level pp65-antigenemia (median 3 positive/5x10(5) leukocytes) developed in 8 (32%) patients. Infection was controlled within a few weeks (median 26 days) without use of antiviral therapy. Duration of intensive care and mechanical ventilation were significantly prolonged in patients with active CMV infection. CMV reactivation was associated with concomitant herpes simplex virus reactivation (p = 0.004). The association between active CMV infection and increased illness could open new therapeutic options for patients with septic shock. Future interventional studies are required.
Insights
Cytomegalovirus (CMV) infection can develop in patients with septic shock, prolonging intensive care. This CMV reactivation often resolves without antiviral treatment but is linked to increased illness.
Area of Science:
- Infectious Diseases
- Critical Care Medicine
- Virology
Background:
- Cytomegalovirus (CMV) is an emerging pathogen in patients experiencing septic shock.
- Understanding CMV's role in septic shock is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate the incidence and impact of active Cytomegalovirus infection in immunocompetent patients with septic shock.
Main Methods:
- Prospective study of 25 CMV-seropositive septic shock patients with ICU stays >=7 days.
- Monitoring included quantitative pp65-antigenemia assay, shell vial culture, and virus isolation.
- Assessed outcomes such as duration of intensive care and mechanical ventilation.
Main Results:
- Active CMV infection developed in 32% of patients within 2 weeks, characterized by low-level pp65-antigenemia.
- CMV infection resolved spontaneously within a median of 26 days without antiviral therapy.
- Patients with active CMV infection experienced significantly prolonged intensive care and mechanical ventilation durations.
- CMV reactivation was significantly associated with concomitant herpes simplex virus reactivation (p=0.004).
Conclusions:
- Active Cytomegalovirus infection is a significant complication in septic shock patients, prolonging critical care.
- The spontaneous resolution of CMV infection suggests potential for novel therapeutic strategies.
- Further interventional studies are warranted to explore treatment options for CMV in septic shock.
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