Veterinary Surgery & Video:
Anal sacculitis & rupture in the dog and cat
Dr Sing Kong Yuen, BVMS (Glasgow), MRCVS
First written: 12 December 2008 Date:
31 January, 2013
The left anal sac area was hard, painful and swollen
on the first day of consultation. Around 10% of the
infected area was soft but it was best to treat this
dog with antibiotics and anti-inflammatory injection
to let the abscess "point" or ripen.
On the 2nd day, the young lady owner came saying that there was a
big hole. The dog was put under general anaesthesia
gas and operated. The oil was expressed. Some oil shot
out from the right anal sac as well.
The deep hole was
irrigated and flushed to clear all dead skin debris
and pus. The edge of the wound was jagged. I used
scissors to undermine the skin. Then I trimmed away
the jagged edges of the skin and obtain fresh skin
edges with blood supply. After that, 3/0 absorbable
interrupted sutures to stitch up the wound.
Fortunately, it was easy to stitch up this wound
compared to the one in the cat (CASE 2) as there was
more skin. The dog went home wearing an
e-collar. No complaint was heard for the next 7 days
and I presumed the wound would heal well.
CASE 2
Case written: Jun 26, 2007 3.17pm
What to do with such a large infected oval wound
near the anus? The cat had licked out the fatty
tissues under the skin. A big gap of 0.5 cm deep and 2
cm long was presented. She had stopped pooping. How to
close such a big gap successfully?
1. Ideally, put the cat on antibiotics for a few days.
Was the wound. But the wound is large.
2. The cat was fat, at 5.5 kg. Would she be able to
survive the injectable general anaesthetic?
3. Anaesthesize the cat using xylazine and ketamine at
0.2 ml: 0.8 ml one syringe, IM
4. Clip the hairs, wash the areas. Syringe in 6%
hydrogen peroxide.
5. Debride --- cut off dead skin edges and remove dead
tissues from inside.
6. Relieve anal sacs of oil. Greyish brown oil seen
from left gland. Right gland must have had ruptured
resulting in a big hole.
7. Trim edges of wound --- convert to diamond shaped
wound.
8. Undermine tissues to get loose skin.
9. Cut lowest end to extend the wound. Z-shaped wounds
sutured.
10. Avoid anal sphincter (near the anal ring).
11. Elizabeth collar size 10.
12. Best to ward cat for 10 days but owner wants her
home.
13. Warn the owner to confine the cat and if she runs
around the home, she may rub stitches off.
14. In 14 days, wound will heal and stitches to be
removed.
Case 3:
Written in Jan 31, 2013
A Jack Russell had a ripened anal abscess
Video produced by an intern from Raffles Institution Pre-University
2nd year, in Jan 2013: 5890.
Video: Anal abscesses in a Jack Russell
Initially
a hard lump, I gave antibiotics for 2 days. The lump softened and
burst. The abscess was cleaned up by Dr Daniel Sing and stitched.
The process was videoed by an intern. No further complaints from the
owner.
TOA
PAYOH VETS
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