Smallies 11 Flashcards
What is the treatment for a diaphragmatic hernia?
Oxygen
IVFT and warm up
Surgery
Prophylactic antibiotics due to toxin release from organ strangulation
Discuss the mortality with diaphragmatic hernia surgery
Higher mortality if surgery performed less than 24 hr following injury (also greater than 1-year-old). Give 24 hours to stabilise unless there is acute gastric distention
Why is IPPV essential when doing a diaphragmatic hernia repair?
As soon as you have opened the abdomen you are doing open chest surgery due to the direct communication
What are signsof a perineal hernia?
Bulging perineal area
`Faecal tenesmus/dysuria
What is the common signalment of a perineal hernia?
Normally entire older male but occasionally seen in bitch/cat
What are causes of a perineal hernia?
Progressive weakening of pelvic diaphragm Hormonal influence Tenesmus Congenital/acquired weakness Colitis/prostatomegaly
How can testosterone cause a perineal hernia?
Testosterone causes muscle atrophy which reduces muscular function
What muscles are found in the pelvic area?
Levator ani, coccygeus and external anal sphincter muscles
What can herniate through a perineal hernia?
Pelvic fat, peritoneal fat, prostate and bladder can herniate
What will you feel on rectal examination of a patient with perineal hernia?
Reducible perineal swelling
Absence of pelvic diaphragm on the lateral side of the pelvic rim
What are consequences of bladder retroflexion through a perineal hernia?
Stranguria, Hyperkalaemia, Azotaemia, Avascular necrosis
What is the treatment for a retroflexed bladder through a perineal hernia?
Cystocentesis through perineum if bladder retroflexed and cannot pass urethral catheter
IVFT (check K+ levels if urinary obstruction)
Herniorrhaphy
Preplace sutures in the muscle before you close (using PDS suture material)
Why should you neuter when doing a herniorrhaphy during treatment of a perineal hernia?
Aetiology is related to excess testosterone so neuter during herniorrhaphy
What are complications of perineal hernia surgery?
Faecal incontinence Urinary problems Infection Rectal prolapse Sciatic nerve entrapment Recurrence
Why can you get faecal incontinence after perineal hernia surgery?
Suture placement – anchor sutures through prepubic tendon, if you go around the tendon you could accidentally entrap the sciatic nerve