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Severe cytomegalovirus infection in apparently immunocompetent patients: a systematic review.

ABSTRACT: BACKGROUND: The morbidity and mortality associated with cytomegalovirus (CMV) infection in immunocompromised patients (especially in HIV-infected patients and transplant recipients), as well as with congenital CMV infection are well known. In contrast, relatively little attention has been paid to the morbidity and mortality that CMV infection may cause in immunocompetent patients. METHODS: We reviewed the evidence associated with severe manifestations of CMV infection in apparently immunocompetent patients and the potential role of antiviral treatment for these infections. We searched in PubMed, Scopus, and the Cochrane Library for the period of 1950-2007 to identify relevant articles. RESULTS: We retrieved 89 articles reporting on severe CMV infection in 290 immunocompetent adults. Among these reports, the gastrointestinal tract (colitis) and the central nervous system (meningitis, encephalitis, transverse myelitis) were the most frequent sites of severe CMV infection. Manifestations from other organ-systems included haematological disorders (haemolytic anaemia, thrombocytopenia), thrombosis of the venous or arterial vascular system, ocular involvement (uveitis), and lung disease (pneumonitis). The clinical practice reported in the literature has been to prescribe antiviral treatment for the most severe manifestations of monophasic meningoencephalitis (seizures and coma), ocular involvement, and lung involvement due to CMV. CONCLUSION: Severe life-threatening complications of CMV infection in immunocompetent patients may not be as rare as previously thought.

SUBMITTER: Rafailidis PI

PROVIDER: S-EPMC2289809 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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Severe cytomegalovirus infection in apparently immunocompetent patients: a systematic review.

Rafailidis Petros I PI Mourtzoukou Eleni G EG Varbobitis Ioannis C IC Falagas Matthew E ME

Virology journal 20080327

<h4>Background</h4>The morbidity and mortality associated with cytomegalovirus (CMV) infection in immunocompromised patients (especially in HIV-infected patients and transplant recipients), as well as with congenital CMV infection are well known. In contrast, relatively little attention has been paid to the morbidity and mortality that CMV infection may cause in immunocompetent patients.<h4>Methods</h4>We reviewed the evidence associated with severe manifestations of CMV infection in apparently ...[more]

PMID: 18371229

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Project description:BackgroundCytomegalovirus (CMV) infection is common in immunocompetent patients in intensive care units (ICUs). However, whether CMV infection or CMV reactivation contributes to mortality of immunocompetent patients remains unclear.MethodsA literature search was conducted for relevant studies published before May 30, 2016. Studies reporting on CMV infection in immunocompetent patients in ICUs and containing 2 × 2 tables on CMV results and all-cause mortality were included.ResultsEighteen studies involving 2398 immunocompetent patients admitted to ICUs were included in the meta-analysis. The overall rate of CMV infection was 27% (95%CI 22-34%, I2 = 89%, n = 2398) and the CMV reactivation was 31% (95%CI 24-39%, I2 = 74%, n = 666). The odds ratio (OR) for all-cause mortality among patients with CMV infection, compared with those without infection, was 2.16 (95%CI 1.70-2.74, I2 = 10%, n = 2239). Moreover, upon exclusion of studies in which antiviral treatment was possibly or definitely provided to some patients, the association of mortality rate with CMV infection was also statistically significant (OR: 1.69, 95%CI 1.01-2.83, I2 = 37%, n = 912,). For CMV seropositive patients, the OR for mortality in patients with CMV reactivation as compared with patients without CMV reactivation was 1.72 (95%CI 1.04-2.85, I2 = 29%, n = 664). Patients with CMV infection required significantly longer mechanical ventilation (mean difference (MD): 9 days (95% CI 5-14, I2 = 81%, n = 875)) and longer duration of ICU stay (MD: 12 days (95% CI 7-17, I2 = 70%, n = 949)) than patients without CMV infection. When analysis was limited to detection in blood, CMV infection without antiviral drug treatment or reactivation was not significantly associated with higher mortality (OR: 1.69, 95%CI 0.81-3.54, I2 = 52%, n = 722; OR: 1.49, I2 = 63%, n = 469).ConclusionCritically ill patients without immunosuppression admitted to ICUs show a high rate of CMV infection. CMV infection during the natural unaltered course or reactivation in critically ill patients is associated with increased mortality, but have no effect on mortality when CMV in blood. More studies are needed to clarify the impact of CMV infection on clinical outcomes in those patients.

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Severe cytomegalovirus infection in apparently immunocompetent patients: a systematic review.

Publications

Severe cytomegalovirus infection in apparently immunocompetent patients: a systematic review.

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