A retrospective study on aetiology based outcome of infantile spasms

Georges Karvelas1, Anne Lortie, Morris H Scantlebury

  • 1Hôpital Sainte-Justine, Département de Pédiatrie, Université de Montréal, Canada.

Seizure
|November 4, 2008
PubMed

Insights

Infantile spasms causes vary, with symptomatic cases often linked to brain development issues. Early diagnosis is crucial for better outcomes in infantile spasms, impacting both epilepsy and cognitive development.

Area of Science:

  • Neurology
  • Pediatric Neurology
  • Epileptology

Background:

  • Infantile spasms (IS) are a severe epilepsy syndrome in infancy.
  • Understanding the causes and outcomes of IS is critical for effective management.

Purpose of the Study:

  • To review the causes of infantile spasms.
  • To correlate the aetiology of IS with treatment response and long-term outcomes.

Main Methods:

  • Retrospective chart review of children diagnosed with IS between 1990 and 2003.
  • Analysis of aetiology, treatment response (vigabatrin vs. ACTH/prednisone), and long-term epileptic and cognitive outcomes.

Main Results:

  • 63% of spasms were symptomatic, primarily due to disorders of cortical development, neonatal injury, and tuberous sclerosis.
  • Treatment response varied by aetiology; vigabatrin showed higher response rates in some symptomatic groups.
  • Most children with symptomatic spasms had poor long-term cognitive and epileptic outcomes, with delays in diagnosis impacting results.

Conclusions:

  • The aetiology and prognosis of infantile spasms are evolving.
  • Reducing diagnostic delay and conducting prospective trials on epileptic and cognitive outcomes are essential for improving IS management.
Abstract

Related Concept Videos

Seizures: Classification01:13

Seizures: Classification

Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
Epilepsy ll: Types01:22

Epilepsy ll: Types

Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.
Seizures l: Introduction01:20

Seizures l: Introduction

Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
Spasmolytic Agents: Chemical Classification01:29

Spasmolytic Agents: Chemical Classification

Spasmolytic agents are drugs used to alleviate muscle spasms and spasticity. They can be categorized into different chemical groups based on their mechanisms of action. Centrally acting spasmolytics primarily affect the spinal cord, while others directly target skeletal muscle cells.
A major class of centrally acting spasmolytics is the α2-agonist, such as tizanidine. These drugs bind to α2-adrenoceptors, inhibiting the release of the excitatory neurotransmitter glutamate. They also promote...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...