eMedicine Specialties > General Surgery > Abdomen
Abdominal Angina: Differential Diagnoses & Workup
Updated: Sep 6, 2007
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Differential Diagnoses
Other Problems to Be Considered
Many patients initially are assumed to have cancer. The constellation of weight loss, abdominal pain, and an age of older than 60 years leads to a workup with GI contrast studies, CT scans, and other diagnostic tests related to malignancy, none of which are diagnostic for chronic mesenteric vascular disease.
Workup
Laboratory Studies
- No laboratory tests are diagnostic.
- Patients with ischemic pancreatitis may have elevated amylase or lipase levels.
Imaging Studies
- Biplane aortography still is the criterion standard test. Because the vessels emerge from the anterior wall of the aorta, the ostia are visualized only on a lateral view (see Media file 3).
- A meandering mesenteric artery is another clue (see Media file 4). In addition to demonstrating the level of stenosis or occlusion of the mesenteric vessels, angiography findings also help plan the operative approach by delineating the anatomy of the supraceliac and infrarenal abdominal aorta.
- Hydrating the patient well before angiography is extremely important, not only to avoid renal toxicity but also because visceral infarction may be precipitated by the injection of contrast.
- Duplex ultrasound examination is emerging as a useful screening modality. It currently is most useful in patients in whom the diagnosis is suspected. If the duplex examination is positive, angiography is performed.
- Indices that are studied include the following:
- Peak systolic flow is increased if a stenosis is present.
- When an increase is expected, a change in flow velocities occurs in response to feeding, unless a flow-limiting stenosis is present.
- Perform a spectral analysis of Doppler frequencies.
- Magnetic resonance angiography has been used as an alternative to aortography in patients who have contrast sensitivity or who are at risk for contrast-related renal dysfunction. It is emerging as an excellent diagnostic modality due to its ability to delineate the anatomy. It also is a useful experimental tool for studying metabolic parameters.
Other Tests
- Because most of these patients have generalized vascular disease, performing a cardiovascular evaluation prior to surgery is prudent.
More on Abdominal Angina |
| Overview: Abdominal Angina |
Differential Diagnoses & Workup: Abdominal Angina |
| Treatment & Medication: Abdominal Angina |
| Follow-up: Abdominal Angina |
| Multimedia: Abdominal Angina |
| References |
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References
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Further Reading
Keywords
intestinal angina, chronic mesenteric ischemia, abdominal angina, postprandial abdominal angina, occlusive mesenteric vascular disease, postprandial pain, symptomatic occlusive mesenteric ischemia, central abdominal pain
Differential Diagnoses & Workup: Abdominal Angina