TY - JOUR
T1 - Brain stem auditory-evoked potentials in meningomyelocele - Natural history of Chiari II malformations
AU - Nishimura, Toshihiko
AU - Mori, Koreaki
AU - Uchida, Yasufumi
AU - Ohira, Takayuki
AU - Tamura, Kazumi
PY - 1991/10/1
Y1 - 1991/10/1
N2 - Brain stem auditory-evoked potentials (BAEPs) were recorded in 30 patients with meningomyelocele and shunted hydrocephalus ranging in age from birth to 33 years. Twenty-two of them had Chiari II malformation, one of which was symptomatic. In 22 cases, including 15 with Chiari II malformation, BAEPs were recorded repeatedly after periods ranging from 18 months to 7 years. The results were as follows: (1) III-V interpeak latency (IPL) decreased progressively from prolonged to the normal range with growth until 25 years of age; (2) I-III IPL tended to prolong gradually from the normal range; (3) these findings may indicate that the natural history of Chiari II malformation is delayed maturation of the brain stem and intensification in the elongation and stretching of the hindbrain and lower cranial nerves.
AB - Brain stem auditory-evoked potentials (BAEPs) were recorded in 30 patients with meningomyelocele and shunted hydrocephalus ranging in age from birth to 33 years. Twenty-two of them had Chiari II malformation, one of which was symptomatic. In 22 cases, including 15 with Chiari II malformation, BAEPs were recorded repeatedly after periods ranging from 18 months to 7 years. The results were as follows: (1) III-V interpeak latency (IPL) decreased progressively from prolonged to the normal range with growth until 25 years of age; (2) I-III IPL tended to prolong gradually from the normal range; (3) these findings may indicate that the natural history of Chiari II malformation is delayed maturation of the brain stem and intensification in the elongation and stretching of the hindbrain and lower cranial nerves.
KW - Brain stem auditory-evoked potentials (BAEPs)
KW - Brain-stem function
KW - Chiari II malformation
KW - Chronological changes
KW - Magnetic resonance imaging
KW - Meningomyelocele
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U2 - 10.1007/BF00304830
DO - 10.1007/BF00304830
M3 - Article
C2 - 1764707
AN - SCOPUS:0025931087
VL - 7
SP - 316
EP - 326
JO - Child's Nervous System
JF - Child's Nervous System
SN - 0256-7040
IS - 6
ER -