外科：一般外（小腸）

12 flashcards · Other · by Wanying Koh

1. most common reason for ileus

   adhesion (especially post-abd surgery)

2. % of water that is absorbed by the small intestine daily

   80%

3. meckel's diverticulum symptoms usually appear before the age of 2

4. what kind of malignant lesion is most common in duodenum

   adenocarcinoma

5. short bowel syndrome: 切 jejunum or ileum 比較會導致?

   切 ileum (應儘量保留 ileum & ileocecal valve)

6. risk factors of short bowel syndrome: 1) 2) 3)

   1) <200cm functional bowel （剩下的腸子不完全健康 e.g. Crohn's dz） 2) <30% of original bowel （腸子太短） 3) removal of ileum and colon （specialized absorption function: Vit B12, folate, bile acids, water, electrolytes, short chain FA） 4) distal 2/3 of ileum , including ileocecal valve 切 jejunum 沒差

7. periumbilical bruising is known as what sign

   Cullen's sign DD: acute pancreatitis, splenic rupture, perforated ulcer, intra-abdominal cancer, ruptured ectopic pregnancy

8. history of old stroke / myocardial infarction currently AF, leukocytosis, metabolic acidosis Diagnosis?

   acute mesenteric ischemia

9. most accurate diagnosis for acute mesenteric ischemia

   abdominal CT angiography

10. Risk factors for acute mesenteric ischemia

    arterial embolism: AF myocardial infarction valvular heart dz endocarditis arterial thrombosis: aortic dissection aortic aneurysm

11. abdominal aortic aneurysm s/s 1) 2) 3)

    1) pulsatile mass 2) mass at abdomen 3) abdominal discomfort

12. abdominal aortic aneurysm surgical indications 1) 2) 3) 4)

    1) >5cm 2) persistent symptoms: abd pain, hemorrhage in abd cavity 3) aneurysm rupture 4) increasing in size