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Test Code VEGF Vascular Endothelial Growth Factor (VEGF), Plasma


Specimen Required


Collection Container/Tube: Lavender-top (EDTA)

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Immediately after drawing the specimen, place the tube on wet ice.

2. Spin down and separate plasma from cells; 1,500 x g for 10 minutes.

3. Freeze specimen within 30 minutes


Secondary ID

63019

Useful For

Evaluation of patients with suspected POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes) syndrome, particularly in differentiating from other forms of polyneuropathy and monoclonal plasma cell disorders

  Monitoring response to treatment in patients with a known diagnosis of POEMS syndrome

Method Name

Electrochemiluminescence

Reporting Name

Vascular Endothelial Growth Fctr, P

Specimen Type

Plasma EDTA

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma EDTA Frozen (preferred) 21 days
  Refrigerated  24 hours

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross reject

Icterus

Mild OK; Gross reject

Other

Specimens other than EDTA plasma

 

Clinical Information

Vascular endothelial growth factor (VEGF) is a critical modulator of angiogenesis (the growth of new blood vessels).(1) In mammals, there are 5 members of the VEGF family, with VEGF-A being the most well-studied. VEGF-A promotes angiogenesis by inducing migration of endothelial cells, promoting mitosis of endothelial cells, and upregulating matrix metalloproteinase activity.(2) VEGF-A is regulated by hypoxia, with increased expression when cells detect an environment low in oxygen. Physiologically, VEGF induces new blood vessel formation during embryonic development, after tissue injury, and in response to blocked vessels.

  VEGF also regulates pathological vessel formation, such as in tumor growth and metastases. Angiogenesis during tumor development is complex, although it is clear that VEGF plays a key role. VEGF also regulates angiogenesis in other disease states including rheumatoid arthritis (RA), osteoarthritis, diabetes, and age-related macular degeneration.(3) In addition, circulating concentrations of VEGF are elevated in patients with polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS) syndrome, a monoclonal plasma cell disorder.(4) Although the pathologic role of VEGF in POEMS is unclear, it is a useful diagnostic marker for assessing response to therapy.

Reference Values

≤96.2 pg/mL

Interpretation

Elevated concentration of vascular endothelial growth factor (VEGF) may be consistent with a diagnosis of POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes) syndrome.   Decreasing concentrations of VEGF over time in a patient with POEMS syndrome may be consistent with a therapeutic response.

Clinical Reference

1.Olsson AK, Dimberg A, Kreuger J, et al: VEGF receptor signaling - in control of vascular function. Nat Rev Mol Cell Bio 2006;7:359-371

2.Otrock AK, Makarem JA, Shamseddine AI: Vascular endothelial growth factor family of ligands and receptors: Review. Blood Cells, Molec, Dis 2007;38:258-268

3.Hoeben A, Landuyt B, Highley MS, et al: Vascular endothelial growth factor and angiogenesis. Pharm Rev 2004;56:549-580

4.D’Souza A, Hayman SR, Buadi F, et al: The utility of plasma vascular endothelial growth factor levels in the diagnosis and follow-up of patients with POEMS syndrome. Blood 2011;118:4663-4665

Day(s) and Time(s) Performed

Thursday, 3 p.m.

Analytic Time

1 day

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

83520

LOINC Code Information

Test ID Test Order Name Order LOINC Value
VEGF Vascular Endothelial Growth Fctr, P 34694-0

 

Result ID Test Result Name Result LOINC Value
63019 VEGF, P 34694-0