acute acquired comitant nonaccommodative ......esotropia hoyt and good various degrees of myopia...
TRANSCRIPT
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ACUTE ACQUIRED COMITANT NONACCOMMODATIVE ESOTROPIA IN CHILDHOOD
A. PUTTEMAN, H. DECONINCK
E. DE NIJS, J. SELLIER
CHU ST-PIERRE BRUXELLES
UZ BRUSSEL
UZ GENT
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ACUTE ACQUIRED COMITANT NONACCOMMODATIVE ESOTROPIA
DOES NOT RULE OUT SERIOUS UNDERLYING NEUROLOGIC PROBLEMS
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TYPES OF ACUTE COMITANT ESOTROPIA
SWAN TYPE AFTER OCCLUSION INDEPENDENT OF REFRACTION ERROR FRANCESCHETTI TYPE STARTS BETWEEN 8M AND 3 YEARS LATE TYPE STARTS BETWEEN 3 YEARS AND 8 YEARS
INTERMITTENT AND VARIABLE THAN CONSTANT ACUTE DIPLOPIA MILD HYPEROPIA NORMAL AC/A SOME DECOMPENSATED MONOFIXATION
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TYPES OF ACUTE COMITANT ESOTROPIA
BIELSCHOWSKY TYPE
MODERATE MYOPIA
DIVERGENCE INSUFFICIENCY
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TYPES OF ACUTE COMITANT ESOTROPIA
HOYT AND GOOD
VARIOUS DEGREES OF MYOPIA
EQUAL DEVIATIONS AT DISTANCE AND NEAR
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ARNOLD CHIARI TYPE 1
CONGENITAL DISPLACEMENT CEREBELLAR TONSILS 5 MM BELOW THE FORAMEN MAGNUM INTO UPPER CERVICAL CANAL
VOLUMETRICALLY SMALL POSTERIOR CRANIAL FOSSA
> 2 ½ YEARS OLD MOSTLY SECOND AND THIRD DECADE DIPLOPIA DIVERGENCE INSUFFICIENCY PATTERN NYSTAGMUS A PATERN IF HYDROCEPHALUS
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ARNOLD CHIARI TYPE 1
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BRAIN TUMORS
PEDIATRIC PATIENTS
50% POSTERIOR FOSSA
INTERMITTENT COMITANT ESOTROPIA
BECOMING CONSTANT
CAN BE THE ONLY SIGN
DIPLOPIA IS NOT ALWAYS PRESENT
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BRAIN TUMORS
SMALL V PATTERN A PATTERN ONLY IF HYDROCEPHALUS
DIVERGENCE INSUFFICIENCY LACK OF MOTOR AND SENSORY FUSION
BEFORE AND AFTER SURGERY SOMETIMES NORMAL MOTOR AND SENSORY FUSION SEARCH FOR NYSTAGMUS IN ABDUCTION
EOG (saccades)
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BRAIN TUMORS
CEREBELLUM
BRAIN STEM
SELLAR REGION
CORPUS CALLOSUM
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BRAIN TUMORS
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BRAIN TUMORS
T OF CEREBELLUM ARE MOST COMMON CEREBELLAR MEDULOBLASTOMA CEREBELLAR ASTROCYTOMA
LONG PERIOD BEFORE NEURO DYSFUNCTION HYDROCEPHALUS ASK FOR MOTOR INSTABILITY AND
CLUMSINESS SOMETIMES 17 TO 28 MONTHS BETWEEN
AACE AND START OF NEURO DYSFUNCTION
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BRAIN TUMORS
T OF BRAIN STEM PONTINE GLIOMA
SHORT PERIOD BEFORE NEURO DYSFUNCTION
VI, VII PALSY, GAZE PALSY, HEMIPARESIS
DIVERGENCE PARESIS WITH NORMAL FUSION
IS POSSIBLE
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POSSIBLE MECHANISMS FOR AACE
LENNERSTRAND DISTURBANCE IN THE VERGENCE MECHANISMS
WITH NEURONAL LOCALIZATION TO THE MESENCEPHALON BY COMPRESSION
MILHORAT CHANGES IN THE CEREBROSPINAL FLUID
DYNAMICS
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POSSIBLE MECHANISMS FOR AACE
OTHERS INCREASED INTRACRANIAL PRESSURE MAY
CAUSE ISSCHEMIA OF BRAINSTEM AND HYPOTHALAMUS
INJURY TO SUPRANUCLEAR MESENCEPHALIC STRUCTURES WHICH CONTROL EYE MOUVEMENTS
INFRANUCLEAR INSULTS( BEST PROGNOSIS FOR FUSION)
SPREAD OF COMITANCE AFTER MILD VI NERVE PALSIES
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MYASTHENIA GRAVIS
PEDIATRIC PATIENTS
COMITANT ESOTROPIA OR EXOTROPIA CAN BE THE ONLY SIGN FOR MONTHS
SOMETIMES RESOLVE AND RECUR MONTHS LATER
ALWAYS NORMAL MOTOR AND SENSORY FUSION
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DEMYELINATING DISEASE
PERIAQUEDUCTAL GRAY MATTER IN THE MIDBRAIN
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PRESENTATION
1. PONTINE GLIOBLASTOMA
FEMALE 4 YEARS OLD CHANGES BEHAVIOUR AACE: Et 12°, MODERATE HYPEROPIA FAMILIAL HISTORY OF SQUINT Et 5°WITH GLASSES NEUROLOGICAL SIGNS VI,VII
HEMIPARESIS AFTER 3 MONTHS NORMAL EYEFUNDUS
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PRESENTATION
2. BRAIN STEM GLIOMA
MALE 2 YEARS OLD AACE ESOTROPIA AND V PATTERN 01.1991 OPERATED IN 08.1991 AND 20.03.1993 MICROSTRABISMUS NEUROLOGICAL SIGNS: DIFFICULTIES AT SCHOOL
11.01.98 BRAIN STEM GLIOMA
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PRESENTATION
3. BRAINSTEM GLIOMA
MONOCULAR ELEVATION DEFICIENCY INFANCY
7 YEARS OLD OPERATION WITH GOOD RESULT
2 YEARS LATER MRI AFTER HEAD TRAUMA
PONTINE GLIOMA
NO OTHER NEUROLOGIC SIGNS
TUMOR STABLE LOW GRADE GLIOMA
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CONCLUSION
ACUTE COMITANT ESOTROPIA AND DIPLOPIA
DIVERGENCE INSUFFICIENCY
MOTOR AND SENSORY FUSION LOSS
NYSTAGMUS IN LATERAL GAZE
ABSENCE OF REFRACTIVE ERROR
ABSENCE OF FAMILIAL STRABISMUS
OTHER CLINICAL SIGNS
ALWAYS CLOSE FOLLOW UP