week 10 Flashcards
what is typically right upper, right lower and left lower quadrants
right upper= liver and gallbladder
right lower= appendix
left lower= diverticulitis
must not miss conditions in the presence of abdominal pain
- Appendicitis
- Bowel obstruction
- Abdominal malignancy
- Cardiovascular origins of abdominal pain
- Gynecological: PID, ectopic pregnancy, ovarian torsion
4 highest LR+ for appendicitis
- right lower quadrant pain
- migrating pain from periumbilical area to right lower quadrant
- fever
- psoas sign
appendicitis imagining
abdominal CT scan or ultrasound if pregnant
what to do If have appendicitis
need antibiotics of surgery
may progress to ischemia, necrosis, perforation of bowel and sepsis
what is more common bowel obstruction of large or small bowel
small (76%)
ethology of large vs small bowel obstruction
large
* Cancer (53%)
* Sigmoid or cecal volvulus (17%)
* Diverticular disease (12%)
* Extrinsic compression from metastatic cancer (6%)
* Other (12%)
small
* Postsurgical adhesions, 70%
* Malignant (usually metastatic) tumor, 10–20%
* Hernia (ventral, inguinal, or internal), 10%
* IBD (with stricture), 5%
* Radiation
signs of bowel obstruction
absent bowel sounds and flatus
large bowel obstruction LR+
- constripation; LR+ = 8.8
- abdominal distention; LR+ = 5.7
- pain decreasing after vomiting LR+ - 4.5
small and large bowel obstruction LR+
- increased bowel sounds with history of prior surgery, LR+ =11
- distention associated with increased bowel sounds, vomiting, constipation or prior surgery, LR+= 10
- increased bowel sounds after vomiting, LR+ = 8
testing for large bowel obstruction
CT scan, barium enema for large bowel obstruction
testing for small bowel obstruction
radiograph (x-ray), ultrasound, CT scan
complete vs partial small bowel obstruction
complete could progress to bowel strangulation and infarction
-clinical signs DO NOT allow for identification of strangulation prior to infarction
-surgery
partial
-rarely progressed to strangulation of infarction
-can still pass stool or flatus
-resolves spontaneously
abdominal malignancy
- Colorectal cancer
- Gynecological cancers
- Pancreatic cancer
- Gall bladder/bile duct cancer
- Gastric cancer
- Liver cancer
systemic symptoms of cancer
- Unintentional weight loss (up to 36% of cancer diagnoses)
- Loss of appetite
- Significant night sweats
- Symptoms waking patient from sleep (diarrhea e.g.)
cardiovascular origins of abdominal pain
- Abdominal Aortic Aneurysm (AAA)
- Myocardial infarction (see Cardiovascular lecture)
- Pericarditis (see Cardiovascular lecture)
- Aortic dissection (see Cardiovascular lecture)
- Mesenteric ischemia
abdominal aortic aneurysm symptoms
- Pulsatile abdominal mass with ruptured AAA (LR+, 8.0; LR–, 0.6)
- Sensitivity severely limited in patients with rupture, large girth
- In patients without AAA rupture who are symptomatic:
- Abdominal pain: 83%
- Flank or back pain: 61–66%
- Syncope: 26%
- Abdominal mass on careful exam: 52% (only 18% had abdominal mass noted on routine abdominal exam)
- Hypotension or orthostasis: 48%
mesenteric ischemia acute vs chronic signs and symptoms
Acute:
* Abdominal pain intensity out of proportion to exam is a classic finding but is absent in 20–25%
* Vomiting (71%)
* Diarrhea (42%)
* Prior history of intestinal angina (50%)
Chronic:
* Recurrent postprandial abdominal pain (often in first hour and diminishing 1–2 hours later)
* food fear, weight loss
* history of tobacco use (75%),
* peripheral vascular disease (55%)
* coronary artery disease (43%)
* hypertension (37%)
* Abdominal pain: 94%
* Typically epigastric or periumbilical pain
* Postprandial pain: 88%
* Weight loss due to food aversion: 78%
* Diarrhea: 36%
IMAGING for mesenteric ischemia acute vs chronic
- CT angiography for acute
- Ultrasonography for chronic
gynecological conditions
Ectopic pregnancy
Ovarian torsion
Pelvic Inflammatory Disease (PID)
etopic pregnancy signs and symptoms
- Severe lower quadrant pain occurs in almost every case.
- Pain sudden onset , stabbing, intermittent, does not radiate
- At least 2/3 patients have a history of abnormal menstruation
- Slight vaginal bleeding (spotting)
- Pelvic adnexal mass may be palpable
investigations for topic pregnancy
serum beta- hCH (pregnancy test) and pelvic ultrasound
what is ovarian torsion
Ischemia or necrosis of the ovary usually due to the presence
of cyst or mass
who is at risk for ovarian torsion
pre-menarchal patients (before first period) and in pregnancy
ovarian torsion signs and symtposm
Almost 70% of torsions occur on the right side
* Sudden-onset, severe, unilateral, lower abdominal pain
* Pain may also have gradual onset and be mild or intermittent
* Nausea and vomiting present in 70% of cases
* Abdominal tenderness and guarding on palpation
* Presence of latero-uterine mass
* Close to 30% of patients have bilateral adnexal tenderness on bimanual examination
which side is ovarian torsion usually on
right side (70%)
investigation for ovarian torsion
transvaginal ultrasound with droppler
prognosis of ovarian torsion
Ovary and fallopian tube can be saved depending on duration and extent of ischemia/necrosis
signs and symptoms of pelvic inflammatory disease
- Lower abdominal pain
- Chills and fever
- Menstrual disturbances
- Purulent cervical discharge
- Cervical and adnexal tenderness
prognosis of pelvic inflammatory disease
- About 20% of women with PID become infertile, 40% develop chronic pain, and 1% of women who conceive have an ectopic pregnancy
- Can resolve spontaneously
investigations for pelvic inflammatory disease
- C-reactive Protein (CRP)
- Erythrocyte Sedimentation Rate (ESR)
- Endocervical culture
- Neisseria gonorrhoeae or Chlamydia trachomatis
other causes of abdominal pain
- Peptic Ulcer Disease
- Cholecystitis
- Cholelithiasis
- Nephrolithiasis
- Acute & Chronic Pancreatitis
- Diverticular disease
- Autoimmune conditions
- Infectious gastroenteritis
- Functional disorders
where do you get ulcer in peptic ulcer disease
gastric or duodenal lining
2 most common causes of peptic ulcer disease
- NSAID use
- H pylori infection