Calcium Channelopathy Mutants and Their Role in Ocular Motor Research

2002 ◽  
Vol 956 (1) ◽  
pp. 64-74 ◽  
Author(s):  
JOHN S. STAHL
Author(s):  
Davor Petrović ◽  
Vida Čulić ◽  
Zofia Swinderek-Alsayed

AbstractJoubert syndrome (JS) is a rare congenital, autosomal recessive disorder characterized by a distinctive brain malformation, developmental delay, ocular motor apraxia, breathing abnormalities, and high clinical and genetic heterogeneity. We are reporting three siblings with JS from consanguineous parents in Syria. Two of them had the same homozygous c.2172delA (p.Trp725Glyfs*) AHI1 mutation and the third was diagnosed prenatally with magnetic resonance imaging. This pathogenic variant is very rare and described in only a few cases in the literature. Multinational collaboration could be of benefit for the patients from undeveloped, low-income countries that have a low-quality health care system, especially for the diagnosis of rare diseases.


Purpose: This case discusses the neurological impact of Wallenberg syndrome on the visual-vestibular system and provides a clinical pathologic correlation between neuro-anatomic involvements with the manifesting symptoms. Case Report: A 50-year-old male presented for consultation following a left lateral medullary infarct occlusion of the left vertebral artery (Wallenberg syndrome) with complaints of intermittent binocular diplopia, vertigo, and oscillopsia. Assessment revealed an intermittent central nystagmus, a right skew deviation, and a left Horner’s syndrome. Video recordings of the nystagmus and ocular motor responses were documented. Conclusion: Wallenberg syndrome has very defined characteristics which can be used clinically to make a definitive diagnosis.It is important for eye care professionals to understand the neuro-anatomic involvements associated with this condition and make the clinical correlation to aid in the treatment and management of these patients.


2021 ◽  
pp. 108776
Author(s):  
Tamaki Kato ◽  
Yoshiteru Tamura ◽  
Hiroshi Matsumoto ◽  
Osamu Kobayashi ◽  
Hideaki Ishiguro ◽  
...  

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