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1.
Emerg Infect Dis ; 26(3): 579-586, 2020 03.
Article in English | MEDLINE | ID: mdl-32091372

ABSTRACT

Nontuberculous mycobacteria (NTM) are an emerging cause of infections, including chronic lymphadenitis in children. To identify risk factors for NTM lymphadenitis, particularly complicated disease, we collected epidemiologic, clinical, and microbiological data on 138 cases of NTM lymphadenitis in children across 13 centers in Germany and Austria. We assessed lifestyle factors but did not identify specific risk behaviors. We noted that more cases of NTM lymphadenitis occurred during cold months than during warm months. Moreover, we noted female sex and age <5.5 years as potential risk factors. Complete extirpation of the affected lymph node appeared to be the best therapeutic measure. We integrated the study data to develop a simple risk score to predict unfavorable clinical outcomes for NTM lymphadenitis.


Subject(s)
Lymphadenitis/epidemiology , Mycobacterium Infections, Nontuberculous/epidemiology , Nontuberculous Mycobacteria/isolation & purification , Adolescent , Age Factors , Austria/epidemiology , Child , Child, Preschool , Female , Germany/epidemiology , Humans , Infant , Infant, Newborn , Lymphadenitis/microbiology , Male , Mycobacterium Infections, Nontuberculous/microbiology , Registries , Retrospective Studies , Risk Factors , Seasons , Sex Factors
2.
Clin Infect Dis ; 55(6): 753-9, 2012 Sep.
Article in English | MEDLINE | ID: mdl-22670043

ABSTRACT

BACKGROUND: In May and June 2011 the largest known outbreak of hemolytic uremic syndrome (HUS) occurred in northern Germany. Because, quite unusually, a large number of adults was affected and the causative Escherichia coli strain, serotype O104:H4, showed an atypical virulence factor pattern, it was speculated that this outbreak was associated with an aggressive course and an unfavorable prognosis also in children. METHODS: Retrospective analysis of medical records of 90 children and comparison to previous outbreak and sporadic case series. RESULTS: Median age was unusually high (11.5 years) compared with that in historical series. Only 1 patient (1.1%) died in the acute phase. Most patients (67/90 [74%]) received supportive care only. Renal replacement therapy was required in 64 of 90 (71%) of the children. Neurological complications, mainly seizures and altered mental stage, were present in 23 of 90 (26%) patients. Ten patients received plasmapheresis, 6 eculizumab, and 7 a combination of both. After a median follow-up of 4 months, renal function normalized in 85 of 90 (94%) patients, whereas 3 patients had chronic kidney disease stage 3 or 4, and 1 patient (1.1%) still requires dialysis. Complete neurological recovery occurred in 18 of 23 patients. Mild to moderate and major residual neurological changes were present in 3 patients and 1 patient, respectively, although all patients were still improving. CONCLUSIONS: E. coli O104:H4 caused the largest HUS outbreak in children reported in detail to date and most patients received supportive treatment only. Initial morbidity, as well as short-term outcome, due to this pathogen, is comparable to previous pediatric series of Shiga toxin-producing E. coli HUS.


Subject(s)
Disease Outbreaks , Hemolytic-Uremic Syndrome/epidemiology , Shiga-Toxigenic Escherichia coli/classification , Shiga-Toxigenic Escherichia coli/isolation & purification , Adolescent , Child , Child, Preschool , Female , Germany/epidemiology , Humans , Infant , Male , Renal Replacement Therapy/methods , Retrospective Studies , Shiga-Toxigenic Escherichia coli/genetics , Treatment Outcome
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