Presentation is loading. Please wait.

Presentation is loading. Please wait.

The typical EEG of hydranencephaly shows a flat pattern but the EEG of severe hydrocephalus does not demonstrate a flat pattern. Visual evoked potential.

Published byCameron Andrews Modified over 6 years ago

Similar presentations

Presentation on theme: "The typical EEG of hydranencephaly shows a flat pattern but the EEG of severe hydrocephalus does not demonstrate a flat pattern. Visual evoked potential."— Presentation transcript:

1 The typical EEG of hydranencephaly shows a flat pattern but the EEG of severe hydrocephalus does not demonstrate a flat pattern. Visual evoked potential (VEP) of severe hydrocephalus showed a normal pattern, while that of hydranencephaly showed no response.70 Short-latency somatosensory evoked potentials (SSEPs) showed absence of cortical activity with the preservation of waves of the thalamus.71,72 Therefore, EEG, SSEP, and VEP are useful for differentiation of hydranencephaly and severe hydrocephalus in cases whose CT scans do not provide clear differentiation. Lennox-Gastaut syndrome and infantile spasms reported in hydranencephaly support the important role of brainstem in generating seizures in these epileptic syndromes.73–75 Source: Focal Nonepileptoform Activity, Atlas of Pediatric EEG Citation: Laoprasert P. Atlas of Pediatric EEG; 2011 Available at: Accessed: October 14, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

Download ppt "The typical EEG of hydranencephaly shows a flat pattern but the EEG of severe hydrocephalus does not demonstrate a flat pattern. Visual evoked potential."

Similar presentations

Automatisms with preserved responsiveness were observed exclusively during seizures arising from the right nondominant temporal lobe. They were not observed.

Automatisms with preserved responsiveness were observed exclusively during seizures arising from the right nondominant temporal lobe. They were not observed.
Benign infantile seizures are characterized by (1) familial or nonfamilial occurrence; (2) normal development prior to onset; (3) onset mostly during the.

Benign infantile seizures are characterized by (1) familial or nonfamilial occurrence; (2) normal development prior to onset; (3) onset mostly during the.
Low Voltage EKG Activity Due to Scalp Edema; High Frequency Jet Respirator Artifact. An 18-day-old boy with diaphragmatic hernia, pulmonary hypoplasia,

Low Voltage EKG Activity Due to Scalp Edema; High Frequency Jet Respirator Artifact. An 18-day-old boy with diaphragmatic hernia, pulmonary hypoplasia,
Scalp Edema and High Frequency Respirator Artifacts

Scalp Edema and High Frequency Respirator Artifacts
The EEG features and their evolution change with age

The EEG features and their evolution change with age
In the scalp EEG, slow-wave activity was present in 62%

In the scalp EEG, slow-wave activity was present in 62%
BHS occur most commonly within the first 18 months of age

BHS occur most commonly within the first 18 months of age
A child presenting with high fever, refusal to eat, and sores in the mouth. (Photo contributor: Binita R. Shah, MD.) Source: Chapter 3. Infectious Diseases,

A child presenting with high fever, refusal to eat, and sores in the mouth. (Photo contributor: Binita R. Shah, MD.) Source: Chapter 3. Infectious Diseases,
Transient Unilateral Attenuation of Background Activity During Sleep

Transient Unilateral Attenuation of Background Activity During Sleep
A. “10-20” is a measurement system designed to reliably reproduce electrode positions on different patients, regardless of head size. Electrodes are placed.

A. “10-20” is a measurement system designed to reliably reproduce electrode positions on different patients, regardless of head size. Electrodes are placed.
Additional electrodes can be used to supplement the standard System

Additional electrodes can be used to supplement the standard System
A mild and inconsistent asymmetry of photic driving response is frequently seen in normal individuals. An asymmetry in photic driving response may result.

A mild and inconsistent asymmetry of photic driving response is frequently seen in normal individuals. An asymmetry in photic driving response may result.
Generalized, frontally predominant, rhythmic fast activity is the most common ictal EEG accompaniment of generalized tonic seizures. Ictal EEG patterns.

Generalized, frontally predominant, rhythmic fast activity is the most common ictal EEG accompaniment of generalized tonic seizures. Ictal EEG patterns.
CT scan of the chest. These axial images of the lower chest demonstrate the difference in lung and soft tissue windows. This patient has a history of congenital.

CT scan of the chest. These axial images of the lower chest demonstrate the difference in lung and soft tissue windows. This patient has a history of congenital.
Lateralized Background Suppression; Hemiplegic Migraine

Lateralized Background Suppression; Hemiplegic Migraine
Nine patterns of inflammatory skin disease. (See also Table 8–1.)

Nine patterns of inflammatory skin disease. (See also Table 8–1.)
Outcomes after surgery, cortical resection, or hemispherectomy in infants with catastrophic focal epilepsy are very good. About 75–78% are seizure-free.

Outcomes after surgery, cortical resection, or hemispherectomy in infants with catastrophic focal epilepsy are very good. About 75–78% are seizure-free.
(A) An axial CT scan demonstrates a grade II splenic laceration with a small amount of hemoperitoneum. (B) An axial CT scan demonstrates a grade III splenic.

(A) An axial CT scan demonstrates a grade II splenic laceration with a small amount of hemoperitoneum. (B) An axial CT scan demonstrates a grade III splenic.
C. Nerve conduction studies demonstrate changes characteristic of an axonal neuropathy. When the ulnar nerve is stimulated above the elbow or at the wrist,

C. Nerve conduction studies demonstrate changes characteristic of an axonal neuropathy. When the ulnar nerve is stimulated above the elbow or at the wrist,
CBZ is the most common antiepileptic drug (AED) causing AED-induced seizure worsening. CBZ can both aggravate and induce new seizure types including absence,

CBZ is the most common antiepileptic drug (AED) causing AED-induced seizure worsening. CBZ can both aggravate and induce new seizure types including absence,

Similar presentations

Ads by Google