Abstract

This study investigated the role of urinary catheterization in causing urinary tract infection in dogs during experimental surgical procedure in addition to isolation and identification of micro–organisms which causes urinary tract infections (UTI).
Eighteen dogs from both sexes aged between (9 month – 3.5 years) were used in this study. The animals were randomly divided into 3 groups each containing 6 dogs. During the surgical operation the dogs were catheterized and urine samples collected under aseptic condition. The urine samples were subjected to various tests; physical, microscopical examinations and bacterial cultivation on various differential media to identify the pathogenic micro – organism.
The results showed that crystals of calcium oxalate (14.2%) and triple phosphate in (7.1%) was precipitated in the urine of dogs that applied laparoscopic cystotomy at which the cystotomy wounds was closed by titanium clips. Also the results showed that E. coli was the most frequent bacteria (28.5%) while other bacteria (Streptococcus spp., Staphylocoocus epidermidis and Corynebacterium spp. was the least frequent (7.1%). Also the results revealed that the chance of UTI increased with prolonged catherization.