Neonatal seizures: an update on mechanisms and management

Frances E Jensen1

  • 1Children's Hospital Boston, CLS 14073, 300 Longwood Avenue, Boston, MA 02115, USA. frances.jensen@childrens.harvard.edu

Clinics in Perinatology
|December 1, 2009
PubMed

Insights

Neonatal seizures pose the highest lifespan risk, with current treatments showing limited efficacy. Recent research into developmental mechanisms offers hope for improved therapies for seizure management in newborns.

Area of Science:

  • Neurology
  • Neonatal Medicine
  • Developmental Neuroscience

Background:

  • Neonatal seizures represent a critical neurological challenge with the highest risk during the neonatal period.
  • Existing therapeutic strategies for neonatal seizures have demonstrated limited effectiveness.
  • Despite decades of limited therapeutic advancement, significant progress has been made in understanding the underlying developmental mechanisms of seizure generation and anticonvulsant response.

Purpose of the Study:

  • To provide a comprehensive overview of current diagnostic and therapeutic approaches for neonatal seizures.
  • To identify recent insights into the pathophysiology of neonatal seizures.
  • To lay the groundwork for the development of more effective future treatments.

Main Methods:

  • Literature review of current diagnostic methods for neonatal seizures.
  • Analysis of established and emerging treatment strategies.
  • Synthesis of recent research on the neurobiological mechanisms of neonatal seizures.

Main Results:

  • Current diagnostic protocols for neonatal seizures are established but require refinement.
  • Therapeutic options remain limited, highlighting the need for novel approaches.
  • Advances in understanding developmental pathways offer potential targets for new anticonvulsant therapies.

Conclusions:

  • Neonatal seizures are a significant clinical problem with a pressing need for improved treatments.
  • Understanding the developmental pathophysiology is crucial for advancing neonatal seizure management.
  • Future therapeutic strategies may emerge from ongoing research into seizure generation and anticonvulsant mechanisms.

Related Concept Videos

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...
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,...
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 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.
Antiepileptic Drugs: Sodium Channel Blockers01:08

Antiepileptic Drugs: Sodium Channel Blockers

Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
Seizures ll: Types01:19

Seizures ll: Types

Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...