Colorectal Flashcards
Impediments to spontaneous closure of fistulas
Foreign body, radiation, inflammation/infection, epithelialization, neoplasia, distal obstruction
Highest risk factor for post op anastomotic leak
Fecal contamination. Also, intraop blood loss
Management of fistula in Crohn’s disease
Infliximab
Most sensitive step during colonoscopy to rule out GI bleed
Intubated the TI
Rx for early return of bowel function after colon surgery
12mg Alvimopan preop continued 7 days postop
Haggitt classification
0 - superficial to muscularis mucosa
1 - submucosal invasion head of polyp
2 - neck
3 - stalk
4 - below stalk or sessile polyp
Kikuchi classification
Sm1 - Upper 1/3 submucosa
Sm2 - Upper 2/3
Sm3 - Lower 1/3
Operative planning rectal cancer
CT CAP
MRI pelvis
Rigid proctoscopy
Preop study prior to repair of bladder/rectum prolapse
Colonoscopy and urodynamic studies
Best surgical treatment for constipation
Total abdominal Colectomy with ileorectal anastomosis
Best diagnostic test for colonic inertia
Sitz marker study
UC extraintestinal conditions (which does not resolve with Colectomy)
Arthritis, ankylosing spondylitis, erythema nodosum, pyoderma gangrenosum, PSC*
Site of colon and rectum with greatest absorptive capacity
Ascending colon
DVT ppx s/p abdominal/pelvic cancer operations
28 days LMWH
T3/4 rectal cancer; tx
Neoadjuvant chemorads, surgery, adjuvant
Surveillance following endoscopic resection colon cancer
Scope 3month, 1 year, 3 years, 5 years
Correct ostomy placement
Summit of infraumbilical fold in rectus
Massive GI bleed; surgical tx
TAC with end ileostomy
Gold standard for dx of colonic pseudoobstruction
CT
Postop surveillance s/p colorectal cancer surgery
Clinical exam and CEA 3-6mo for 2, 6mo for 5
CT every 6-12mo for 5 if high risk for recurrence
Colonoscopy 1 yr, 3 then 5
IBS criteria
Rome IV; recurrent abdominal pain (at least 1 day/week in the last 3 months) associated with 2 or more:
Related to defecation
Change in stool frequency
Change in stool form
Criteria for transanal endoscopic microsurgery (TEM)
T1 without high risk features, <3cm, <30% circumference, 5-15cm from anal verge
Transvaginal repair of rectocele; Critical step
Plication of the vaginal muscularis and rectovaginal tissues
Polyp invading submucosa at splenic flexure; tx
Extended left hemicolectomy