Chronic inflammatory demyelinating polyradiculoneuropathy concomitant with nephropathy.

Area of Science:

• Neurology
• Nephrology
• Immunology

Background:

• Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a common autoimmune peripheral neuropathy.
• Renal diseases like membranous nephropathy and focal segmental glomerulosclerosis have been reported in CIDP patients, suggesting a potential link to CIDP pathogenesis.

Purpose of the Study:

• To review and synthesize evidence on the diagnosis and treatment of CIDP patients with concurrent renal diseases.
• To provide comprehensive insights into the management of CIDP in the context of kidney complications.

Main Methods:

• A systematic review of patient databases and online literature (PubMed, EMBASE, OVID) was conducted.
• Identified and analyzed cases of patients diagnosed with both CIDP and nephropathy.

Main Results:

• A total of 18 cases (2 from internal database, 16 from literature) were identified.
• The majority of affected patients were male (77.8%) with a mean age of 53.3 years.
• Paresthesia in distal limbs was the predominant symptom (94.4%). Corticosteroids were effective in 10 out of 14 treated patients, though 3 experienced relapses.

Conclusions:

• Shared immune-mediated pathways may underlie CIDP and associated nephropathies.
• Male sex and sensory-predominant CIDP are indicators for potential renal complications.
• Corticosteroids are the recommended first-line treatment for CIDP with renal involvement, with slower tapering or maintenance therapy potentially improving outcomes.