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Shawn Messer

Publications and source records attributed to Shawn Messer.

2 recordsLinked to original sources

Disk diffusion testing using Candida sp. colonies taken directly from CHROMagar Candida medium may decrease time required to obtain results.

We compared results of disk diffusion antifungal susceptibility testing from Candida sp. strains passaged on CHROMagar and on potato dextrose agar. The overall categorical agreements for fluconazole and voriconazole disk testing were 95% and 98% with 0% and 0.5% very major errors, respectively. Disk diffusion testing by the CLSI (formerly NCCLS) M44-A method can be performed accurately by taking inocula directly from CHROMagar.

Agar↗

Attributable mortality of nosocomial candidemia, revisited.

We reexamined the attributable mortality of nosocomial candidemia 15 years after a retrospective cohort study performed at our hospital demonstrated an attributable mortality of 38%. For all episodes of nosocomial candidemia between 1 July 1997 and 30 June 2001, we matched control patients with case patients by age, sex, date of hospital admission, underlying disease(s), length of time at risk, and surgical procedure(s). We analyzed 108 matched pairs. There were no statistically significant differences in age, sex, underlying disease(s), time at risk, surgical procedure, or vital signs at admission between cases and controls. The crude mortality among case patients was 61% (66 of 108 patients), compared with 12% (13 of 108) among control patients, for an attributable mortality of 49% (95% CI, 38%-60%). Nosocomial candidemia is still associated with an extremely high crude and attributable mortality--much higher than that expected from underlying disease alone.

Age Factors↗