VGKC Panel

The VGKC (Voltage-Gated Potassium Channel) Panel is a specialised antibody test that detects Anti-LGI1 and Anti-CASPR2 antibodies in serum or cerebrospinal fluid (CSF). These antibodies are associated with autoimmune disorders that affect the brain and peripheral nerves. When the immune system mistakenly targets proteins linked to voltage-gated potassium channels, it can interfere with normal nerve signalling and lead to a range of neurological symptoms. This panel helps clinicians investigate immune-mediated neurological conditions and supports a more accurate clinical evaluation.

Who should get this test done?

This test may be recommended for individuals who:

●     Experience unexplained memory loss, confusion, or behavioural changes.

●     Have recurrent seizures or episodes suggestive of autoimmune encephalitis.

●     Show symptoms such as muscle twitching, stiffness, cramps, or nerve overactivity without a clear cause.

●     Are being evaluated for suspected autoimmune disorders affecting the brain or peripheral nervous system.

●     Have persistent neurological symptoms that require specialised antibody testing for further assessment.

Why consider this test?

The VGKC Panel provides valuable information when neurological symptoms suggest an immune-related cause rather than a structural or infectious condition. By detecting Anti-LGI1 and Anti-CASPR2 antibodies, the panel helps identify specific autoimmune responses that may affect nerve communication. Since many neurological disorders present with similar symptoms, this targeted antibody panel contributes to a more comprehensive assessment, helping healthcare professionals understand the underlying cause and make informed decisions about further evaluation and patient management.

More Information

Although the panel is commonly referred to as the VGKC Panel, it specifically detects antibodies against LGI1 and CASPR2, proteins that are closely associated with the voltage-gated potassium channel complex. These proteins play an important role in maintaining normal communication between nerve cells. An immune response directed against them can disrupt nerve signalling and contribute to neurological symptoms. The test can be performed using either serum or CSF, depending on the clinical situation, and offers valuable insight into autoimmune disorders affecting the nervous system.

Other Names

●     Voltage-Gated Potassium Channel (VGKC) Antibody Panel

●     VGKC Complex Antibody Panel

●     LGI1 and CASPR2 Antibody Panel

●     Anti-LGI1 and Anti-CASPR2 Antibody Test

●     VGKC Autoimmune Neurology Panel

●     VGKC Antibody Profile