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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Ophthalmol
2014 ; 157
(4
): 774-780.e1
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Endophthalmitis caused by streptococcal species: clinical settings, microbiology,
management, and outcomes
#MMPMID24418264
Kuriyan AE
; Weiss KD
; Flynn HW Jr
; Smiddy WE
; Berrocal AM
; Albini TA
; Miller D
Am J Ophthalmol
2014[Apr]; 157
(4
): 774-780.e1
PMID24418264
show ga
PURPOSE: To report the clinical settings, antibiotic susceptibilities, and
outcomes of endophthalmitis caused by Streptococcus species. DESIGN:
Retrospective, observational case series. METHODS: Single-center study evaluating
all patients with culture-positive endophthalmitis caused by Streptococcus
species between January 1, 2000, and December 31, 2011. RESULTS: Study criteria
were met by 63 patients. The most common clinical settings were bleb associated
(n = 17; 27%), after intravitreal injection (n = 16; 25%), and after cataract
surgery (n = 13; 21%). The isolates were Streptococcus viridans (n = 47; 71%),
Streptococcus pneumoniae (n = 13; 21%), and ?-hemolytic Streptococci (n = 5; 8%).
Sixty (95%) of 63 isolates were susceptible to vancomycin, 47 (98%) of 48
isolates were susceptible to ceftriaxone (third-generation cephalosporin), and 57
(93%) of 61 isolates were susceptible to levofloxacin (third-generation
fluoroquinolone). Between the first and second half of the study, the minimal
inhibitory concentration of antibiotics required to inhibit 90% of isolates
increased by 1.5-fold for ceftriaxone and 2-fold for levofloxacin and remained
the same for vancomycin. Initial treatment was vitreous tap (49; 78%) or pars
plana vitrectomy (14; 22%); all received intravitreal antibiotics. Visual acuity
outcomes were variable: best-corrected visual acuity was 20/400 or better in 16
(25%) patients and worse than 20/400 in 47 (75%) patients. Evisceration or
enucleation was performed in 16 (25%) patients. CONCLUSIONS: Streptococcus
isolates generally had high susceptibility rates to commonly used antibiotics.
Higher antibiotic minimal inhibitory concentrations were required to inhibit 90%
of isolates in vitro in the second half of the study period compared with the
first half. Despite prompt treatment, most patients had poor outcomes.