Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
paroxysmal_tonic_gaze_infants [2026/09/20 11:12] – Scott Larsonparoxysmal_tonic_gaze_infants [2026/09/20 11:13] (current) – Scott Larson
Line 26: Line 26:
  
 ^ Feature ^ Benign tonic upgaze (PTU) ^ Tonic downgaze of infancy ^ ^ Feature ^ Benign tonic upgaze (PTU) ^ Tonic downgaze of infancy ^
- 
 | Eye deviation | Sustained upward, with chin-down neck flexion | Sustained downward, often exotropic/supine-triggered | | Eye deviation | Sustained upward, with chin-down neck flexion | Sustained downward, often exotropic/supine-triggered |
- 
 | Saccade correction | Down-beating saccades on attempted downgaze | Intermittent upward saccades | | Saccade correction | Down-beating saccades on attempted downgaze | Intermittent upward saccades |
- 
 | Typical onset | First year, mean ~5–6 mo | Very early (days–12 wk) in benign form | | Typical onset | First year, mean ~5–6 mo | Very early (days–12 wk) in benign form |
- 
 | Prognosis/associations | Often part of neurodevelopmental spectrum; CACNA1A and other genes | Benign form resolves; symptomatic form linked to PVL/HIE, metabolic disease | | Prognosis/associations | Often part of neurodevelopmental spectrum; CACNA1A and other genes | Benign form resolves; symptomatic form linked to PVL/HIE, metabolic disease |
  
-Both are on the differential of nonepileptic paroxysmal eye-movement phenomena of infancy and can be mistaken for seizures, so video documentation and normal EEG during events are useful in distinguishing them from epilepsy. [[link|Kartal, Pediatr Emerg Care 2019]] [[link|Rodan et al., Neurology 2013]]+Both are on the differential of nonepileptic paroxysmal eye-movement phenomena of infancy and can be [[detecting_seizures_during_pediatric_eye_exam|mistaken for seizures]], so video documentation and normal EEG during events are useful in distinguishing them from epilepsy. 
  
 ===== References ===== ===== References =====