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Clinical Characteristics of Carbapenem-resistant Klebsiella pneumoniae Infections in Ill and Colonized Children in Colombia

Díaz, Alejandro MD; Ortiz, Diana Cristina MD; Trujillo, Mónica MD; Garcés, Carlos MD; Jaimes, Fabian MD, MSc, PhD; Restrepo, Andrea Victoria MD

The Pediatric Infectious Disease Journal: March 2016 - Volume 35 - Issue 3 - p 237–241
doi: 10.1097/INF.0000000000000987
Original Studies
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Background: Multidrug-resistant Gram-negative infections represent a growing problem and a serious global threat. Data in children are scarce. Klebsiella pneumoniae carbapenemases (KPC) are the most common mechanism of resistance this organism has developed. We report the clinical characteristics and outcomes from a cohort of children infected or colonized with carbapenem-resistant K. pneumoniae (CRKp) at a tertiary care center in Medellín, Colombia.

Methods: We performed a retrospective chart review of all pediatric cases from whom CRKp isolates were obtained from 2008 to 2013. Clinical characteristics and outcomes were recorded.

Results: A total of 34 infected children (median age, 22.8 months) with 43 episodes and 55 colonized patients (median age, 33 months) were identified. All patients had at least 1 risk factor previously related with multidrug-resistant Gram-negative infections (premorbid conditions, previous exposure to antibiotics, prolonged length of stay and use of indwelling devices). Urinary tract infections, abdominal infections and bacteremia were the most common clinical presentations. Overall mortality was 38%, and it was lower when a meropenem-containing regimen was used. Colistin was the most used antibiotic either alone or in combination and was associated with 8.8% of nephrotoxicity.

Conclusion: CRKp infections have high mortality in children and usually occur in children with comorbidities, prolonged hospital stay and prior antibiotic exposure. Combined therapy with meropenem-containing regimens seems to be the best option in severely ill children.

From the *Universidad CES; Division of Pediatric Infectious Diseases, Hospital Pablo Tobón Uribe; Clínica Universitaria Bolivariana; §Clínica CardioVID, Universidad de Antioquia, School of Medicine; Research and Education Unit, Hospital Pablo Tobón Uribe; and llDepartment of Internal Medicine, Universidad de Antioquia, Medellín, Colombia.

Accepted for publication August 28, 2015.

Presented in IDWeek 2014, Philadelphia, PA, Poster abstract No. 987.

The authors have no funding or conflicts of interest to disclose.

Address for correspondence: Alejandro Díaz, MD, Facultad de Medicina, Universidad CES, Cra 25 No. 10–40, Edificio Camino de Monticello Medellín, Antioquia 050010, Colombia. E-mail: alejodiaz81@gmail.com.

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