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You are here: Home / Articles / Studies Examine Peripheral Nervous System Disease in Lupus Patients

Studies Examine Peripheral Nervous System Disease in Lupus Patients

November 12, 2020 • By Linda Childers

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Billion Photos / shutterstock.com

Billion Photos / shutterstock.com

Although systemic lupus erythematosus (SLE) affects both the central nervous system (CNS) and peripheral nervous system (PNS), past research has primarily focused on how lupus affects the CNS.

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Now, an international, inception cohort study, “Peripheral Nervous System Disease in Systemic Lupus Erythematosus,” published in Arthritis & Rheumatology, has examined different types of PNS disease to determine how frequently it occurs, its course over time, associated outcomes and how it affects quality of life for lupus patients.1 The study found that PNS involvement is more common in SLE than previously believed.

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Led by John Hanly, MD, FRCPC, a rheumatologist at the Queen Elizabeth II Health Sciences Centre and a professor of rheumatology at Dalhousie University Medical School in Halifax, Nova Scotia, Canada, the study looked at 19 neuropsychiatric (NP) events, including seven types of PNS disease.

“PNS is an important part of overall neuropsychiatric lupus and can greatly impact a patient’s quality of life,” Dr. Hanly says.

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More Than 1,800 Patients Enrolled

Study patients were enrolled between 1999 and 2011 by the Systemic Lupus International Collaborating Clinics (SLICC), a network of 52 investigators at 43 academic medical centers in 16 countries. The SLICC research network was founded 27 years ago and works to support research in the lupus field and facilitate interaction among lupus researchers.

“Of the more than 1,800 patients followed in our multi-ethnic, longitudinal study, more than 8% experienced some type of PNS disease, predominantly neuropathies, that can have a negative impact on a patient’s quality of life,” says Dr. Hanly. “In our study, 161 PNS events occurred in 139 patients over an average of 7.6 years of follow-up.”

Hanley

Dr. Hanley

Dr. Hanly says the study looked at 1,827 lupus patients, 88% of whom were female and 48.8% were white. Patients were evaluated annually for 19 neuropsychiatric events including seven types of PNS disease. SLE disease activity, organ damage, autoanti­bodies, and patient and physician assessment of outcome were measured.

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The mean age for study participants was 35, and disease was assessed over approximately seven years.

Although lupus is more common in individuals of Asian descent, Dr. Hanly says his study found they were less susceptible to PNS manifestations.

“One of the biggest takeaways from our study is that SLE patients can have PNS manifestations shortly after diagnosis or at any time over the course of the disease, and that it is frequently attributed to their lupus,” Dr. Hanly says.

The most common PNS events include peripheral neuropathy, mononeuropathy and cranial neuropathy, he adds.

Pages: 1 2 3 | Single Page

Filed Under: Conditions, Research Reviews, SLE (Lupus) Tagged With: central nervous system, peripheral nervous system, quality of life, SLE Resource CenterIssue: November 2020

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