Achromobacter xylosoxidans endophthalmitis diagnosed by polymerase chain reaction and gene sequencing.

Ocul Immunol Inflamm

Department of Ophthalmology, University of the Philippines, Philippine General Hospital, Manila, and Asian Eye Institute, Makati, Philippines.

Published: December 2005

AI Article Synopsis

  • A patient with endophthalmitis caused by Achromobacter xylosoxidans was successfully diagnosed using advanced techniques like polymerase chain reaction (PCR) and gene sequencing.
  • Anterior chamber fluid was analyzed by amplifying bacterial DNA, which revealed a 214-base pair sequence that matched A. xylosoxidans, confirming the diagnosis.
  • The patient responded well to antimicrobial treatment, showing significant improvement within a month, highlighting the potential of PCR and gene sequencing as diagnostic tools for culture-negative bacterial infections.

Article Abstract

Purpose: To report a patient with Achromobacter xylosoxidansendophthalmitis that was diagnosed using polymerase chain reaction and gene sequencing.

Methods: Case report. A patient with culture-negative endophthalmitis underwent an anterior chamber tap. Polymerase chain reaction was performed on the aqueous sample using the 16S ribosomal DNA primer set to detect and amplify bacterial DNA. The amplified DNA was sequenced and compared to archived sequences in a gene library using the BLAST search program.

Results: A 214-base pair gene sequence was amplified and matched with the gene sequence for A. xylosoxidans. Antimicrobial treatment was instituted with resolution of hypopyon, anterior chamber cells, and vitreous cells one month after treatment.

Conclusions: Polymerase chain reaction of 16S rDNA combined with gene sequencing may be an alternative method of diagnosing culture-negative bacterial endophthalmitis.

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Source
http://dx.doi.org/10.1080/09273940590951043DOI Listing

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