Spina Bifida

Updated: February 6, 2025

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Background

Spina bifida is defined as malformation of the spinal cord. It is classified as neural tube defect which recognized for over 4000 years.

Neural tube defects vary from stillbirth to incidental spina bifida findings. Advances in treatment enable more neural tube defect patients to engage in society.

Myelomeningocele patients experience lower limb paralysis, sensory loss, bladder and bowel dysfunction, and cognitive impairments.

Prenatal detection and early closure of spina bifida reduce complications and improve care levels in patients.

The contemporary treatment of spina bifida emphasizes a team approach to alleviate parental strain and ensure access to essential services for effective care.

Classification of spina bifida

Spina bifida occulta and cystica

Syringomeningocele

Syringomyelocele and syringomyeli

Epidemiology

In the U.S., spina bifida occurs in 1 in 2875 births with higher rates in specific populations.

Approximately 1500 infants yearly born with myelomeningocele. Neural tube defects annually affect 214,000-322,000 pregnancies.

In the U.S., Hispanic women have the highest rate of live births with spina bifida at 3.80 per 10,000.

Surveillance data between 1983 to 1990 shows myelomeningocele birth prevalence higher in females than males.

Anatomy

Pathophysiology

Neural tube defects arise from teratogenic processes leading to neural tube closure failure.

Neural tube defects develop between the 17th and 30th day of gestation when the mother may be unaware of her pregnancy and fetus size is minimal.

Spina bifida cystica poses issues when the meningeal cyst contains spinal cord tissue.

Aggressive shunting for hydrocephalus may result in normal intelligence despite potential seizures.

Young men with myelomeningocele experience abnormal sensation and reduced fertility.

Etiology

Genetic Factors

Environmental Factors

Nutritional Factors

Environmental Toxins and Chemicals

Pesticides and pollutants

Maternal Age and Parity

Genetics

Prognostic Factors

Prenatally diagnosed myelomeningocele with mild ventriculomegaly and lower lesion levels predicts improved childhood developmental outcomes.

Most individuals exhibit abnormalities on neuropsychological tests which is influenced by hydrocephalus presence.

Children with myelomeningocele show common learning impairments in visual and auditory/verbal memory.

Around 75% of children with myelomeningocele shows IQs above 80, but 60% of those shows normal IQs levels with face learning disabilities.

Clinical History

Collect details including prenatal, neonatal, birth, developmental and medical history to understand clinical history of patient.

Physical Examination

Neurological Examination

Musculoskeletal Examination

Urological Examination

Psychosocial and Functional Assessment

Age group

Associated comorbidity

Associated activity

Acuity of presentation

Symptoms in infants:

Lethargy, poor feeding, irritability, ocular motor incoordination, development delay

Symptoms in older children:

Cognitive or behavioral changes, decreased strength, increased spasticity, lower cranial nerve dysfunction, back pain

Differential Diagnoses

Tethered Cord Syndrome

Hydrocephalus

Clubfoot

Diastematomyelia

Sacral Agenesis

Laboratory Studies

Imaging Studies

Procedures

Histologic Findings

Staging

Treatment Paradigm

Supportive care is advised for irreparable sacs, active CNS infections, serious bleeding, or critical congenital anomalies.

Patients may require extensive and interdisciplinary treatment by a trained and coordinated team.

Early monitoring of lower extremity motor function is crucial involves serial orthopedic exams to assess muscle strength and joint range for timely intervention.

To prevent outhouse syndrome, attention is necessary as physical issues can lead to social consequences from noncompliance with bowel regimens.

Physical therapy aligns with gross motor milestones; occupational therapy should start early to address motor skill deficits developmentally.

Treatment strategies aim to preserve renal function and ensure infection-free social continence through various bladder drainage methods.

Long-term low bladder pressure maintenance may need medications to decrease pressure and sphincter function.

Children with high bladder pressures may need surgical intervention.

Abnormal anal sphincter function and anorectal sensation in myelomeningocele patients affect voluntary defecation due to S2-S4 spinal involvement.

Assisted bowel programs promote social continence and prevent constipation effectively.

Bracing aims to help patients function optimally based on their neurological condition and intelligence while promoting normal development and enabling ambulation.

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-spina-bifida

Use a roll-in shower with grab bars and install raised toilet seats.

Ensure accessible restrooms with caregiver space and private changing areas.

Children with myelomeningocele face limited mobility which changes normal development and negatively impacts their self-esteem.

Recreational therapy helps adult independence to assist patients in shopping for personal items.

Proper awareness about spina bifida 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 Antispasmodic Agents

Oxybutynin:

It exerts a direct antispasmodic effect on smooth muscle and inhibits muscarinic action of acetylcholine.

Use of Anticholinergics

Hyoscyamine:

It is indicated in the management of lower urinary tract disorders with hypermotility.

Use of Tricyclic Antidepressants

Imipramine:

It has anticholinergic activity with alpha-adrenergic activity.

Use of Alpha-Adrenergic Antagonists

Terazosin:

It decreases smooth muscle tone in the bladder neck without bladder contractility.

Doxazosin:

It is a selective inhibitor of alpha1-adrenergic receptors in the bladder neck decreases outflow resistance.

use-of-intervention-with-a-procedure-in-treating-spina-bifida

Fetal surgery is a major advancement in spina bifida management for myelomeningocele including fetal myelomeningocele repair.

Individuals with spina bifida experience neurogenic bladder to maintain urinary function including clean intermittent catheterization and bladder augmentation.

Orthopedic procedures are required to address skeletal deformities and improve mobility including clubfoot repair and spinal fusion surgery.

use-of-phases-in-managing-spina-bifida

The prenatal management phase focuses on early detection, counseling, and interventions during pregnancy.

Pharmacologic therapy is effective in the treatment phase as it includes the use of antispasmodic agents, anticholinergics, tricyclic antidepressants, and alpha-adrenergic antagonists.

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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Spina Bifida

Updated : February 6, 2025

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Spina bifida is defined as malformation of the spinal cord. It is classified as neural tube defect which recognized for over 4000 years.

Neural tube defects vary from stillbirth to incidental spina bifida findings. Advances in treatment enable more neural tube defect patients to engage in society.

Myelomeningocele patients experience lower limb paralysis, sensory loss, bladder and bowel dysfunction, and cognitive impairments.

Prenatal detection and early closure of spina bifida reduce complications and improve care levels in patients.

The contemporary treatment of spina bifida emphasizes a team approach to alleviate parental strain and ensure access to essential services for effective care.

Classification of spina bifida

Spina bifida occulta and cystica

Syringomeningocele

Syringomyelocele and syringomyeli

In the U.S., spina bifida occurs in 1 in 2875 births with higher rates in specific populations.

Approximately 1500 infants yearly born with myelomeningocele. Neural tube defects annually affect 214,000-322,000 pregnancies.

In the U.S., Hispanic women have the highest rate of live births with spina bifida at 3.80 per 10,000.

Surveillance data between 1983 to 1990 shows myelomeningocele birth prevalence higher in females than males.

Neural tube defects arise from teratogenic processes leading to neural tube closure failure.

Neural tube defects develop between the 17th and 30th day of gestation when the mother may be unaware of her pregnancy and fetus size is minimal.

Spina bifida cystica poses issues when the meningeal cyst contains spinal cord tissue.

Aggressive shunting for hydrocephalus may result in normal intelligence despite potential seizures.

Young men with myelomeningocele experience abnormal sensation and reduced fertility.

Genetic Factors

Environmental Factors

Nutritional Factors

Environmental Toxins and Chemicals

Pesticides and pollutants

Maternal Age and Parity

Prenatally diagnosed myelomeningocele with mild ventriculomegaly and lower lesion levels predicts improved childhood developmental outcomes.

Most individuals exhibit abnormalities on neuropsychological tests which is influenced by hydrocephalus presence.

Children with myelomeningocele show common learning impairments in visual and auditory/verbal memory.

Around 75% of children with myelomeningocele shows IQs above 80, but 60% of those shows normal IQs levels with face learning disabilities.

Collect details including prenatal, neonatal, birth, developmental and medical history to understand clinical history of patient.

Neurological Examination

Musculoskeletal Examination

Urological Examination

Psychosocial and Functional Assessment

Symptoms in infants:

Lethargy, poor feeding, irritability, ocular motor incoordination, development delay

Symptoms in older children:

Cognitive or behavioral changes, decreased strength, increased spasticity, lower cranial nerve dysfunction, back pain

Tethered Cord Syndrome

Hydrocephalus

Clubfoot

Diastematomyelia

Sacral Agenesis

Supportive care is advised for irreparable sacs, active CNS infections, serious bleeding, or critical congenital anomalies.

Patients may require extensive and interdisciplinary treatment by a trained and coordinated team.

Early monitoring of lower extremity motor function is crucial involves serial orthopedic exams to assess muscle strength and joint range for timely intervention.

To prevent outhouse syndrome, attention is necessary as physical issues can lead to social consequences from noncompliance with bowel regimens.

Physical therapy aligns with gross motor milestones; occupational therapy should start early to address motor skill deficits developmentally.

Treatment strategies aim to preserve renal function and ensure infection-free social continence through various bladder drainage methods.

Long-term low bladder pressure maintenance may need medications to decrease pressure and sphincter function.

Children with high bladder pressures may need surgical intervention.

Abnormal anal sphincter function and anorectal sensation in myelomeningocele patients affect voluntary defecation due to S2-S4 spinal involvement.

Assisted bowel programs promote social continence and prevent constipation effectively.

Bracing aims to help patients function optimally based on their neurological condition and intelligence while promoting normal development and enabling ambulation.

Physical Medicine and Rehabilitation

Use a roll-in shower with grab bars and install raised toilet seats.

Ensure accessible restrooms with caregiver space and private changing areas.

Children with myelomeningocele face limited mobility which changes normal development and negatively impacts their self-esteem.

Recreational therapy helps adult independence to assist patients in shopping for personal items.

Proper awareness about spina bifida 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

Oxybutynin:

It exerts a direct antispasmodic effect on smooth muscle and inhibits muscarinic action of acetylcholine.

Physical Medicine and Rehabilitation

Hyoscyamine:

It is indicated in the management of lower urinary tract disorders with hypermotility.

Physical Medicine and Rehabilitation

Imipramine:

It has anticholinergic activity with alpha-adrenergic activity.

Physical Medicine and Rehabilitation

Terazosin:

It decreases smooth muscle tone in the bladder neck without bladder contractility.

Doxazosin:

It is a selective inhibitor of alpha1-adrenergic receptors in the bladder neck decreases outflow resistance.

Physical Medicine and Rehabilitation

Fetal surgery is a major advancement in spina bifida management for myelomeningocele including fetal myelomeningocele repair.

Individuals with spina bifida experience neurogenic bladder to maintain urinary function including clean intermittent catheterization and bladder augmentation.

Orthopedic procedures are required to address skeletal deformities and improve mobility including clubfoot repair and spinal fusion surgery.

Physical Medicine and Rehabilitation

The prenatal management phase focuses on early detection, counseling, and interventions during pregnancy.

Pharmacologic therapy is effective in the treatment phase as it includes the use of antispasmodic agents, anticholinergics, tricyclic antidepressants, and alpha-adrenergic antagonists.

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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