Brown-Sequard Syndrome

Updated: February 6, 2025

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Background

Brown-Séquard syndrome is an incomplete spinal cord lesion reflecting hemi section injury in the cervical region.

It causes ipsilateral paralysis, proprioception loss, and contralateral pain. Partial preservation zone shows ipsilateral weakness and analgesia noted.

The symptoms vary from mild to severe neurologic deficits. Pure Brown-Séquard syndrome from cord hemisection is rare.

A clinical picture with syndrome fragments and extra symptoms is more frequently observed.

Interruption of corticospinal tracts causes a spastic weak leg with brisk reflexes, while the strong leg loses pain and temperature sensation.

It is diagnosed through history and physical examination. Laboratory work is not essential for evaluation but helps in tracking patient progress.

The clinical presentation relates to spinal cord anatomy and corticospinal tract motor fibers cross at medulla-spinal junction.

The ascending dorsal column transmits vibration and position sensations and crossing in the medulla.

Epidemiology

Brown-Séquard syndrome is rare accounts for 2-4% of the estimated 17,800 traumatic spinal cord injuries annually in the United States.

Incomplete tetraplegia prevalence in 1649 individuals as 30%, 10%, and 3% respectively.

Since 2015, spinal cord injury cases are 59% white, 23.9% African American, 12.8% Hispanic, and 1.4% other ethnicities.

Demographic studies indicate a higher incidence of spinal cord injuries in males compared to females due to traumatic causes.

SCI predominantly affects individuals aged 16-30 with mean age rising in recent decades.

Anatomy

Pathophysiology

It arises from unilateral damage to spinal cord ascending and descending tracts.

Petechial hemorrhages in gray matter enlarge within an hour occurs hemorrhagic necrosis in 24-36 hours. White matter exhibits hemorrhage and structural damage in myelinated fibres.

Saadon-Grosman studied two patient groups those with cervical sensory Brown-Séquard syndrome and those undergoing cervical disk repair.

Etiology

Brown-Séquard syndrome results from damage to one side of spinal cord.

Traumatic injuries, stab or gunshot wounds, or unilateral facet fractures from vehicle accidents or falls are the most common causes.

Unusual causes reported include pen assault, cerebrospinal fluid catheter removal post-surgery, and blowgun dart injury.

Genetics

Prognostic Factors

It shows good prognosis for motor recovery, with significant improvement in 1-2 months post-injury

Recovery slows after initial phase but may continue for 2 years post-injury.

Pollard and Apple’s review of 412 traumatic cervical SCI patients revealed completeness of the lesion as key for neurologic recovery.

Recovery in patients with stenosis without fracture was unrelated to high-dose steroids or routine surgical intervention.

Clinical History

Collect details including presenting symptom, onset and progression and medical history to understand clinical history of patient.

Physical Examination

Motor Examination

Sensory Examination

Gait and Coordination

Autonomic Function

Age group

Associated comorbidity

Associated activity

Acuity of presentation

Acute symptoms are:

Stab wounds, gunshot injurie, spinal cord infarction, motor weakness and sensory disturbances

Chronic symptoms are:

Ependymomas, schwannomas, tethered cord syndrome, late-onset autonomic dysfunction

Differential Diagnoses

Acute Poliomyelitis

Guillain-Barre Syndrome

Multiple Sclerosis

Cervical Disc Disease

Decompression Sickness

Laboratory Studies

Imaging Studies

Procedures

Histologic Findings

Staging

Treatment Paradigm

Preparing a life-care plan for Brown-SĂ©quard syndrome patients requires special attention due to the syndrome’s incompleteness and uncertain lifetime needs.

Maximal function evaluation should consider difficulties and changes of aging with disability.

Address secondary complications with aggressive prevention and early treatment.

Transfer to a level I trauma centre for spinal cord injury care is appropriate but should not delay overall patient evaluation for additional injuries.

Emergency department care involves thorough evaluation, neurological examination, and careful immobilization of the cervical and dorsal spine to prevent movement.

Sensory loss complicates injury investigation, and supplementary imaging studies for clarity.

Neurologic recovery post-discharge warrants continued outpatient physical therapy.

by Stage

by Modality

Chemotherapy

Radiation Therapy

Surgical Interventions

Hormone Therapy

Immunotherapy

Hyperthermia

Photodynamic Therapy

Stem Cell Transplant

Targeted Therapy

Palliative Care

use-of-non-pharmacological-approach-for-brown-sequard-syndrome

Install ramps or stairlifts for wheelchair access in multi-level areas.

Position near toilets and showers for support also use a bench or chair to enhance safety during bathing.

Adjust counter heights and keep frequently used items accessible for sitting tasks.

Utilize raised dots on switches and install anti-scald devices in showers to prevent burns.

Proper awareness about Brown-Sequard Syndrome should be provided and its related causes with management strategies.

Appointments with physician and preventing recurrence of disorder is an ongoing life-long effort.

Use of Corticosteroids

Methylprednisolone:

It decreases inflammation to suppress migration of polymorphonuclear leukocytes.

High-dose steroids administered early improve outcomes for traumatic spinal cord injury patients.

Corticosteroids possess anti-inflammatory properties and significantly changes the body’s metabolic responses.

use-of-intervention-with-a-procedure-in-treating-brown-sequard-syndrome

Surgical intervention in traumatic SCI emphasizes spinal stability and prompt reduction of spinal deformity.

The reduced spine’s stabilization to prevent cord injury is controversial; options include surgical repair with grafting and instrumentation or natural healing in an orthosis.

Surgical decompression of spinal canal may help with residual compression.

use-of-phases-in-managing-brown-sequard-syndrome

In the acute diagnosis phase, the goal is to stabilize the patient, prevent further spinal cord injury, and diagnose and treat the underlying cause.

Pharmacologic therapy is effective in the treatment phase as it includes the use of corticosteroids.

In supportive care and management phase, patients should receive required attention such as lifestyle modification and surgical interventional therapies.

The regular follow-up visits with the physician are scheduled to check the improvement of patients along with treatment response.

Medication

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Brown-Sequard Syndrome

Updated : February 6, 2025

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Brown-Séquard syndrome is an incomplete spinal cord lesion reflecting hemi section injury in the cervical region.

It causes ipsilateral paralysis, proprioception loss, and contralateral pain. Partial preservation zone shows ipsilateral weakness and analgesia noted.

The symptoms vary from mild to severe neurologic deficits. Pure Brown-Séquard syndrome from cord hemisection is rare.

A clinical picture with syndrome fragments and extra symptoms is more frequently observed.

Interruption of corticospinal tracts causes a spastic weak leg with brisk reflexes, while the strong leg loses pain and temperature sensation.

It is diagnosed through history and physical examination. Laboratory work is not essential for evaluation but helps in tracking patient progress.

The clinical presentation relates to spinal cord anatomy and corticospinal tract motor fibers cross at medulla-spinal junction.

The ascending dorsal column transmits vibration and position sensations and crossing in the medulla.

Brown-Séquard syndrome is rare accounts for 2-4% of the estimated 17,800 traumatic spinal cord injuries annually in the United States.

Incomplete tetraplegia prevalence in 1649 individuals as 30%, 10%, and 3% respectively.

Since 2015, spinal cord injury cases are 59% white, 23.9% African American, 12.8% Hispanic, and 1.4% other ethnicities.

Demographic studies indicate a higher incidence of spinal cord injuries in males compared to females due to traumatic causes.

SCI predominantly affects individuals aged 16-30 with mean age rising in recent decades.

It arises from unilateral damage to spinal cord ascending and descending tracts.

Petechial hemorrhages in gray matter enlarge within an hour occurs hemorrhagic necrosis in 24-36 hours. White matter exhibits hemorrhage and structural damage in myelinated fibres.

Saadon-Grosman studied two patient groups those with cervical sensory Brown-Séquard syndrome and those undergoing cervical disk repair.

Brown-Séquard syndrome results from damage to one side of spinal cord.

Traumatic injuries, stab or gunshot wounds, or unilateral facet fractures from vehicle accidents or falls are the most common causes.

Unusual causes reported include pen assault, cerebrospinal fluid catheter removal post-surgery, and blowgun dart injury.

It shows good prognosis for motor recovery, with significant improvement in 1-2 months post-injury

Recovery slows after initial phase but may continue for 2 years post-injury.

Pollard and Apple’s review of 412 traumatic cervical SCI patients revealed completeness of the lesion as key for neurologic recovery.

Recovery in patients with stenosis without fracture was unrelated to high-dose steroids or routine surgical intervention.

Collect details including presenting symptom, onset and progression and medical history to understand clinical history of patient.

Motor Examination

Sensory Examination

Gait and Coordination

Autonomic Function

Acute symptoms are:

Stab wounds, gunshot injurie, spinal cord infarction, motor weakness and sensory disturbances

Chronic symptoms are:

Ependymomas, schwannomas, tethered cord syndrome, late-onset autonomic dysfunction

Acute Poliomyelitis

Guillain-Barre Syndrome

Multiple Sclerosis

Cervical Disc Disease

Decompression Sickness

Preparing a life-care plan for Brown-SĂ©quard syndrome patients requires special attention due to the syndrome’s incompleteness and uncertain lifetime needs.

Maximal function evaluation should consider difficulties and changes of aging with disability.

Address secondary complications with aggressive prevention and early treatment.

Transfer to a level I trauma centre for spinal cord injury care is appropriate but should not delay overall patient evaluation for additional injuries.

Emergency department care involves thorough evaluation, neurological examination, and careful immobilization of the cervical and dorsal spine to prevent movement.

Sensory loss complicates injury investigation, and supplementary imaging studies for clarity.

Neurologic recovery post-discharge warrants continued outpatient physical therapy.

Physical Medicine and Rehabilitation

Install ramps or stairlifts for wheelchair access in multi-level areas.

Position near toilets and showers for support also use a bench or chair to enhance safety during bathing.

Adjust counter heights and keep frequently used items accessible for sitting tasks.

Utilize raised dots on switches and install anti-scald devices in showers to prevent burns.

Proper awareness about Brown-Sequard Syndrome should be provided and its related causes with management strategies.

Appointments with physician and preventing recurrence of disorder is an ongoing life-long effort.

Physical Medicine and Rehabilitation

Methylprednisolone:

It decreases inflammation to suppress migration of polymorphonuclear leukocytes.

High-dose steroids administered early improve outcomes for traumatic spinal cord injury patients.

Corticosteroids possess anti-inflammatory properties and significantly changes the body’s metabolic responses.

Physical Medicine and Rehabilitation

Surgical intervention in traumatic SCI emphasizes spinal stability and prompt reduction of spinal deformity.

The reduced spine’s stabilization to prevent cord injury is controversial; options include surgical repair with grafting and instrumentation or natural healing in an orthosis.

Surgical decompression of spinal canal may help with residual compression.

Physical Medicine and Rehabilitation

In the acute diagnosis phase, the goal is to stabilize the patient, prevent further spinal cord injury, and diagnose and treat the underlying cause.

Pharmacologic therapy is effective in the treatment phase as it includes the use of corticosteroids.

In supportive care and management phase, patients should receive required attention such as lifestyle modification and surgical interventional therapies.

The regular follow-up visits with the physician are scheduled to check the improvement of patients along with treatment response.

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