QTc Interval Dispersion in Pediatric Epilepsy: A Case-Control Study From Iran
Ahmad Talebian1, Ali Mohammad Shakiba1, Adele Malekipoor2
1Department of Pediatrics, Kashan University of Medical Sciences, Kashan, Iran.
Summary
Children with epilepsy under five years old showed higher QT interval corrected dispersion (QTcd), while those on antiepileptic drugs had lower QTcd. These findings highlight cardiac monitoring needs in pediatric epilepsy.
Area of Science:
- Cardiology
- Neurology
- Pediatrics
Background:
- QT interval corrected dispersion (QTcd) assesses ventricular repolarization heterogeneity and arrhythmic risk.
- QTcd is implicated in various neurologic and cardiac conditions.
- Pediatric epilepsy presents potential cardiac risks requiring investigation.
Purpose of the Study:
- To compare QTcd in children with epilepsy versus healthy controls.
- To investigate the influence of age and antiepileptic drug (AED) use on QTcd in pediatric epilepsy.
Main Methods:
- A case-control study involving 50 children with epilepsy and 50 matched controls.
- Manual measurement of QTcd from 12-lead electrocardiograms (ECGs).
- Statistical analysis using SPSS version 22.
Main Results:
- No significant overall difference in QTcd between children with epilepsy and controls.
- Significantly higher QTcd in epileptic children under five years old compared to controls.
- Significantly lower QTcd in epileptic children on AEDs versus those not on treatment.
Conclusions:
- While overall QTcd did not differ, age (under five) and AED use significantly impact QTcd in pediatric epilepsy.
- Findings underscore the importance of cardiac evaluation in young epilepsy patients.
- Early cardiac assessment and intervention are crucial for children with epilepsy.
More Related Videos
Related Concept Videos
01:24Epilepsy 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...
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
01:13Seizures: 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:
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:
01:17Pharmacokinetics in Pediatric Patients: Drug Distribution
Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight, compared...
01:15Pharmacodynamic Models: Linear Concentration–Effect Model
The linear concentration–effect model, underpinned by the principle that pharmacological effect (E) is directly proportional to plasma drug concentration (C), emerges as a pivotal simplification of the Emax model for conditions where C is significantly less than EC50. This model portrays a linear trajectory of the concentration–effect relationship when drug levels are markedly below the EC50 threshold.Despite its inherent assumption of continuous effect augmentation with increasing drug...
01:19Seizures 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...
01:22Epilepsy 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.