Diverticular Disease Flashcards
When do you see more diverticulosis?
Increases with age (over 60 see more)
Predominant sight of diverticulosis
Sigmoid colon (smallest diameter and largest intraluminal pressure)
Most common presentation of diverticulosis
Asymptomatic and discovered incidentally
Why does diverticulosis occur?
Develops at weak point in the colonic wall where vasa recta penetrate
Increased pressure predisposes mucosa and submucosa to herniate
Also a low fiber diet–constipation–intraluminal pressure–herniation (progression maybe)
Other sxs of diverticulosis
Occasional abdominal cramping, constipation, diarrhea, bloating
Normal exam
Diagnostics for diverticulosis
No labs or imaging needed b/c usually found incidentally
Tx for asymptomatic diverticulosis
High fiber diet (20-35 g/day)-increase stool bulk
Adequate hydration
Don’t recommend avoidance of seeds/nuts
Why does diverticulitis occur?
Inspissated debris obstructs neck of diverticulum or increased luminal pressure result sin erosion of diverticular wall leading to inflammation and necrosis and then a perf (free air and peritonitis)
Most common type of diverticulitis
Uncomplicated
Types of complicated diverticulitis
Abscess, fistula, obstruction or perforation
Presentation of acute diverticulitis
Progressive, steady aching pain usually LLQ
Fever/chills
Maybe n/v, change in bowel habits, irritative urinary sxs
Low fever, maybe peritoneal signs
What can be seen with a colovesical fistula with diverticulitis?
Pneumaturia or fecaluria
Exam for diverticulitis
LLQ abd tenderness
Rectal exam may have mass or tenderness (stool guaiac)
Pelvic exam for women
Labs for diverticulitis
CBC-moderate leukocytosis (maybe not in elderly)
BMP/CMP (maybe amylase or lipase)
UA/culture and urine HCG
Stool studies if diarrhea
Test of choice for acute diverticulitis
CT scan of A/P with contrast (see localized bowel wall thickening and fat stranding, presence of colonic diverticula)