No abstract available.
Citrobacter freundii* ; Citrobacter* ; Osteomyelitis*

No abstract available.
Citrobacter freundii* ; Citrobacter* ; Osteomyelitis*

No abstract available.
Citrobacter* ; Enterobacter*

No abstract available.
Citrobacter freundii* ; Citrobacter* ; Humans ; Infant, Newborn* ; Meningitis*

No abstract available.
Abscess* ; Citrobacter koseri

No abstract available.
Abscess* ; Citrobacter* ; Humans ; Paronychia*

Citrobacter species is a gram-negative bacilli that can cause opportunistic infections in immunocompromised hosts. Citrobacter braakii refers to the genomospecies 6 of the Citrobacter freundii complex. There are no detailed studies on infections caused by this newly identified specific genetic species in Korea. We herein report a case of a patient with hepatocellular carcinoma who, after undergoing transcatheter arterial chemoembolization, developed biloma which later progressed to C.braakii sepsis and did not respond to treatment. To our knowledge, this is the first reported case in Korea on C. braakii infection resulting in septic shock in a patient with malignancy in Korea.
Carcinoma, Hepatocellular ; Citrobacter ; Citrobacter freundii ; Humans ; Immunocompromised Host ; Korea ; Opportunistic Infections ; Sepsis ; Shock, Septic

Citrobacter freundii is frequently isolated in antimicrobial-resistant nosocomial infections. Many strains of Citrobacter freundii are capable of producing an inducible broad-spectrum beta-lactamase. We report a case of an abdominal aortic aneurysm infected with Citrobacter freundii. A 55-year-old woman presented with acute lower back pain. Contrast enhanced computed tomography revealed a saccular aneurysm of the infrarenal abdominal aorta, with impending rupture. She underwent emergency surgery, during which a segment of aneurysmal aorta and infected tissue were completely removed and an in situ graft was placed for vascular reconstruction. The anastomotic site and inserted graft were wrapped with greater omentum. Citrobacter freundii was isolated by tissue culture from the resected aneurysmal wall.
Aneurysm ; Aorta ; Aorta, Abdominal ; Aortic Aneurysm, Abdominal ; beta-Lactamases ; Citrobacter ; Citrobacter freundii ; Cross Infection ; Emergencies ; Female ; Humans ; Low Back Pain ; Middle Aged ; Omentum ; Rupture ; Transplants

We shall devide the specific types of conjunctivitis into four main categories: (1) infectious conditions, (2) allergic conditions, (3) irritative conditions, and (4) inflammations occuring in association with diseases of the skin and mucous membranes. Bacterial conjunctivitis is the most common types of infections conjunctivitis. The common causes of bacterial conjunctivitis are Moraxella, Hemophillus, Staphylococcus, Streptococcus, Pneumococcus, Gonococcus, Corynebacterium diphtheriae. The genus citrobacter is closely related to the Salmonella-Arizona group of Entrobacteriaceae. They are usually recovered as commensals or as secondary pathogens from patients with altered host defences. The most commonly involved sites are the urinary and respiratory tracts. A 6 month old Korean male was found to hyperacute conjunctivitis OU which had developed for about 15days. Citrobacter freundii was recovered from the conjunctival exudate through smear, culture and biochemical study. Beside his conjunctivitis OU, this child was physically healthy and not found to have immunodeficiency. The conjunctivitis was treated and recovered with topical 0.5% Gentamycin and amoxycyillin 400mg.
Child ; Citrobacter freundii* ; Citrobacter* ; Conjunctivitis* ; Conjunctivitis, Bacterial ; Corynebacterium diphtheriae ; Exudates and Transudates ; Gentamicins ; Humans ; Infant ; Inflammation ; Male ; Moraxella ; Mucous Membrane ; Neisseria gonorrhoeae ; Respiratory System ; Skin ; Staphylococcus ; Streptococcus ; Streptococcus pneumoniae

BACKGROUND: Derepressed AmpC beta-lactamase producing Enterobacter cloacae, Citrobacter f reundii, and Serratia marcescens are important nosocomial pathogens and the infections are difficult to treat, because they are multi-drug resistant. The aim of this study was to determine the isolation rate and trend, and antimicrobial susceptibility of derepressed strains isolated from clinical specimens. METHODS: E. cloacae, S. marcescens, and C. f reundii isolated from 1996 through 2000 were enrolled in the study. Antimicrobial susceptibility was tested by NCCLS disk diffusion method. Derepressed strain was defined as strain non-susceptible to third generation cephalosporin. The isolation patterns of important gram-negative bacilli with the derepressed strains were analyzed with respect to years, patient's locations and specimens. RESULTS: Among the clinical isolates, the derepressed strains of E. cloacae, S. marcescens, and C. f reundii were 65%, 70%, and 56%. The proportion of the derepressed strains : E. cloacae increased from 68% in 1996 to 71% in 1998, however, decreased to 59% in 2000, S. marcescens increased from 68% in 1996 to 73% in 2000, C. f reundii decreased from 69% in 1996 to 41% in 2000. The proportion of the derepressed strains were high among the isolates from blood and respiratory specimens of inpatient and intensive care patient. The resistance rates of the depressed strains were 47~62% to third generation cephalosporin and aztreonam, 15~85% to aminoglycoside, 68% to cotrimoxazole, and 31% to levofloxacin. CONCLUSION: Among the clinical isolates of E. cloacae, S. marcescens, and C. f reundii, the derepressed strains were as high as 56~70%, and they were commonly isolated from blood and sputum specimens of inpatient and intensive care patient, and showed high resistance rates to the most antimicrobial agents.
Anti-Infective Agents ; Aztreonam ; beta-Lactamases* ; Citrobacter freundii ; Citrobacter* ; Cloaca ; Diffusion ; Enterobacter cloacae ; Enterobacter* ; Humans ; Inpatients ; Critical Care ; Levofloxacin ; Serratia marcescens ; Serratia* ; Sputum ; Trimethoprim, Sulfamethoxazole Drug Combination