Retrospective Evaluation of Predisposing Factors and Factors Influencing Prognosis of Canine Perineal Hernia

The events causing a sudden increasing of intra-abdominal pressure like barking and coughing are suspected to increase the loading of pelvic diaphragm, which may lead to perineal herniation. The role of excessive barking and coughing in the development of perineal hernia were surveyed in this study. The present study also attempted to determine the risk factors affecting the prognosis following surgical treatment of perineal hernia. Seventy-three dogs diagnosed as perineal hernia and repaired surgically at the National Taiwan University Veterinary Hospital (NTUVH) from January 2004 to March 2010 were included in this study.

Differences in recurrence, complication rate and surgical outcome after perineal herniorrhaphy are not correlated with patient age, clinical signs, castration, which are compatible with previous studies.

For small breeds and patients with bilateral perineal hernia, rectal diseases and inguinal cryptorchidism, a poorer prognosis and more complications after surgical repair may need to discuss with the owner.

Excessive barking behavior may be one of the predisposing factors of canine perineal hernia, and can also affect the surgical outcome.