INCIDENCE
CRC in UC appears at younger age than in
sporadic CRC (40-50 yrs old vs 60).
5-10% after 20 years.
12-20% after 30 years.
RISK FACTORS
Duration of the disease
Extent of the disease
UC complicated by primary sclerosing cholangitis
Presence of post-inflammatory pseudopolyp
CRC in UC…
Appears as:
Polypoid
Nodular
Ulcerated
Plaque like
Mostly adenocarcinoma.
Mostly located in the rectum and sigmoid
It arises from areas of dysplasia.
Dysplastic areas may appear flat or slightly raised
areas.
Dysplastic areas may occur within or near nodules,
masses, polyps or plaque like lesion.
N.B.: Diagnosis of dysplasia in Pre Op colonoscopy
has a:
81% sensitivity
79% specifty
Surgical management in UC
Indications for surgery in UC:
SURGICAL EMERGENCIES
Massive life threatening hemorrhage
Toxic megacolon with impending perforation
Fulminant colitis unresponsive to IV corticosteroids
Colonic perforation
Total obstruction from stricture
Elective:
Intractability despite max therapy.
Mucosal dysplasia
Dysplasia-associated lesion or mass (DALM)
Intolerable side effects of medications
Patient with significant risk to develop CRC
Stricture formation without obstruction
Extraintestinal manifestations
Growth retardation, primarily in children and
adolescents
Surgical Options
Emergency operation:
Subtotal colectomy with end ileostomy
Proctocolectomy with end ileostomy
Blow-hole colostomy with end ileostomy
Subtotal colectomy with end ileostomy
Advantages : Allows option for IPAA; low risk
Disadvantages :
Requires second operation
may develop rectal recurrence of disease
Contraindication : Massive hemorrhage from colon and
rectum
Proctocolectomy with end ileostomy:
Advantages: Definitive treatment
Disadvantages :
No option for IPAA
moderate risk for perineal nerve damage
Contraindication : Severely toxic or unstable patient
Blow-hole colostomy with end ileostomy
Advantages: Short, simple decompression procedure
Disadvantages : Diseased colon and rectum retained
ELECTIVE PROCEDURES
Total proctocolectomy with Brooke ileostomy
Subtotal colectomy with ileorectal anastomosis
Total proctocolectomy with Kock pouch
Total colectomy, mucosal proctectomy and hand-sewn
IPAA with temporary diverting loop ileostomy (two-
stage operation)
Total proctocolectomy without mucosectomy and
stapled IPAA with temporary diverting loop ileostomy
(two-stage operation)
Laparoscopic total proctocolectomy with or without
mucosectomy and IPAA
Total proctocolectomy with Brooke ileostomy
Indications : Patients wanting to avoid risks of IPAA; elderly;
poor sphincter function; rectal cancer
Contraindications :Patient aversion to permanent ileostomy;
obesity; life-threatening emergencies
Advantages: Eliminates all disease-bearing mucosa; single
operation
Disadvantages: Potential for nerve injury in the perineal and
pelvic dissection; permanent ileostomy; delayed perineal
wound healing; mechanical problems with stoma; high risk of
SBO
Subtotal colectomy with ileorectal anastomosis
Indications: No rectal involvement; avoid permanent
stoma and IPAA; young women of childbearing age to
preserve fertility
Contraindications : Poor sphincter tone or dysfunction;
active rectal or perianal disease; colonic or rectal
dysplasia; or frank cancer
Advantages: One-stage operation; complete
continence with good function; low risk of pelvic nerve
injury; eliminates stoma.
Disadvantages:
30% Recurrence rate requiring conversion to ileostomy
Risk of rectal cancer requiring lifelong surveillance
Total proctocolectomy with Kock pouch
Indications : Alternative to conventional ileostomy for
patients desiring to preserve continence; poor sphincter
tone; low rectal cancer; failed IPAA; conversion from
ileostomy
Contraindications : Possibility of Crohn's disease;
previous resection of small bowel; patients over 60
years old; obesity; coexisting medical illness
Advantages: Avoids ileostomy; patients remain
continent; good quality of live; improved body image
over ileostomy
Disadvantages: High reoperation rate (35%) due to
nipple valve dysfunction or failure; high fistula rate;
pouchitis
Total Proctocolectomy with Ileal Pouch–Anal
Anastomosis
Indications : Procedure of choice for ulcerative colitis;
colonic dysplasia or cancer; indeterminate colitis
Contraindications : Poor resting tone or anal sphincter
dysfunction; low rectal cancers
Advantages: Completely restorative; mucosectomy
eliminates all disease-bearing mucosa; no disease
recurrence; no cancer risk; good function, continence,
and quality of life.
Disadvantages:
Two-stage procedure
potential for nerve injury in the perineal and pelvic
dissection
reduced fertility in females
mucosectomy and hand-sewn IPAA are technically
demanding and difficult to learn
septic complications
pouchitis
Operative Techniques:
Stage I : abdominal colectomy, mucosal proctectomy,
endorectal IPAA, and diverting loop ileostomy
Stage II : clousre of ileostomy
ileal J-pouch
faster
less tedious to create
use considerably less ileum
have similar or better functional results than other
pouch configurations.
Post-IPAA:
4 weeks after - barium radiographic study
8 weeks after - anal manometry + clousre of ileostomy
1 – 3 – 6 – 12 month F/U then every year
flexible fiberoptic pouchoscopy with surveillance
biopsies of the ileal pouch approximately every 5
years.
Complications
Pouch Failure
Pouchitis
Crohn's Disease
dysplasia and carcinoma of the ileal pouch
Pouch Failure
significant long-term complication of IPAA
Prior anal pathology
Abnormal anal manometry
Pouch-perineal or pouch-vaginal fistulae
Pelvic sepsis
Anastomotic stricture, and dehiscence
Brooke ileostomy or Kock pouch
Pouchitis
nonspecific, idiopathic inflammation of the ileal
pouch
most common and significant late, long-term
complication
> 50% of ulcerative colitis patients
Rare in IPAA for FAP
Presentation :
stool frequency
watery diarrhea
fecal urgency
Incontinence
abdominal cramping
fever, and malaise
flexible ileal pouchoscopy
the greatest risk for experiencing an episode is
during the initial 6-month period following closure
of the temporary diverting loop ileostomy.
Risk continues to rise steadily for the next 18–36
months before leveling off at around 4 years
Crohn's Disease
severe morbidity and a significant risk of pouch
excision
Predictors :
complex perianal or pouch fistulae
ileitis proximal to the pouch
Afferent limb ulcers
biological therapies