Initial Response and Outcome of Critically Ill Children With Guillain Barre' Syndrome

Comparison of IVIg and TPE efficacy in the treatment of neurological disorders: a systematic literature review

Background:

Intravenous immunoglobulin (IVIg) and therapeutic plasma exchange (TPE) are among the main immunotherapies for neurological disorders. Their benefit is greatest in immune-mediated conditions, but their distinct efficacy cannot be simply explained.

Objectives:

This review aimed to systematically identify studies comparing the efficacy of TPE and IVIg treatments for selected autoimmune neurological disorders and identify optimal therapies for each condition.

Data Sources and Methods:

PubMed, MEDLINE and Embase databases were searched for original publications from 1990 to 2021. Additional publications were identified via expert recommendations. Conference abstracts older than 2017, review articles and articles without information on TPE and IVIg comparison in title and abstract were excluded. Risks of bias were descriptively addressed, without a meta-analysis.

Results:

Forty-four studies were included on Guillain–Barré syndrome (20 studies – 12 adult, 5 paediatric, 3 all ages), myasthenia gravis (11 studies –8 adult, 3 paediatric), chronic immune–mediated polyradiculoneuropathy (3 studies –1 adult, 2 paediatric), encephalitis (1 study in adults), neuromyelitis optica spectrum disorders (5 studies –2 adult, 3 all ages) and other conditions (4 studies – all ages). TPE and IVIg were mostly similarly efficacious, measured by clinical outcomes and disease severity scores. Some studies recommended IVIg as easy to administer. TPE procedures, however, have been simplified and the safety has been improved. TPE is currently recommended for management of neuromyelitis optica spectrum disorder relapses and some myasthenia gravis subtypes, in which rapid removal of autoantibodies is crucial.

Conclusion:

Despite some limitations (e.g. the low evidence levels), this review provides an extensive 30-year-long overview of treatments for various conditions. Both IVIg and TPE are usually comparably efficacious options for autoimmune neurological disorders, with few exceptions. Treatment choices should be patient-tailored and based on available clinical resources. Better designed studies are needed to provide higher-level quality of evidence regarding clinical efficacy of TPE and IVIg treatments.

Superimposed Guillain-Barré Syndrome (GBS) in pediatric hypoxic brain injury

BACKGROUND

Hypoxic brain injury results in severe disabilities that require extensive acute inpatient and outpatient rehabilitation to promote maximal functional and cognitive recovery. Brain hypoxemia can result from a multitude of causes, including but not limited to cardiac arrest, drug overdose, and/or shock. While recovery from a hypoxic brain injury alone can be challenging, dealing with concurrent debilitative diagnoses such as Guillain Barré Syndrome (GBS) further complicates the recovery and rehabilitation course.

CASE REPORT

The current case study highlights the acute inpatient rehabilitation course of a 16 year old male who presented with cerebral hypoxia secondary to strangulation and subsequently developed GBS. Physical examination of the patient upon rehabilitation consult was inconsistent with a purely hypoxic brain injury, including the absence of rectal tone. This prompted further potential spinal cord injury evaluation and work up, with diagnostic testing confirmatory of GBS.

RELEVANCE

This case is important as, to our knowledge from literature review, the first known documented instance of hypoxic brain injury complicated by GBS. Moreover, it highlights the importance of identifying all potential causes of functional disability, particularly when presented with physical exam findings inconsistent with chief diagnosis, in order to maximize functional recovery and rehabilitative gains during acute inpatient rehabilitation.