Neuro-Otological Studies of Caloric Reaction in Healthy Elderly Individuals
Neuro-Otological Studies of Caloric Reaction in Healthy Elderly Individuals
复制标题
健康老年人热量反应的神经耳科研究
DOI：
10.3757/jser.48.184
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Hitoshi Watada
中科院分区：
文献类型：
--
作者：
Hitoshi Watada
74名年龄在65岁至88岁之间（平均=75岁）的健康受试者，21名男性和53名女性，接受了热量测试。受试者分为两组：65-74岁和75-88岁。另取20名20-29岁健康青年作对照组，用冰水20 ml灌耳20秒。本文采用眼震电图（ENG）记录眼球震颤的总次数、持续时间、慢相最大速度和潜伏期，并与对照组进行比较。1）以眼球震颤持续时间和慢相最大速度为指标的眼球震颤反应，以眼震电图为基础的眼球震颤反应，以眼在75-88岁年龄组中，出现了明显的降低; 2）在5例65岁以上的受试者中，在慢相最大速度参数处显示了热量反应的功能不对称性; 3）对照组的所有成员均主诉明确的旋转性眩晕，但65岁以上的12名受试者（8.1%）没有头晕的感觉。4）我们的研究表明，热量反应通常保持良好，直到非常高的年龄。
Seventy-four healthy subjects between the ages of 65 and 88 years (mean=75 years), 21 men and 53 women, underwent the caloric test. The subjects were divided into two groups; 65-74 and 75-88 years of age. The caloric test was also performed in 20 healthy young individuals 20-29 years of age as a control group.The ears were irrigated with 20ml of ice water for 20 seconds. Caloric nystagmus was recorded by ENG with the eyes kept open in darkness.The total number of beats, the duration of nystagmus, the maximum velocity of the slow phase and the latent time of the nystagmus were recorded.The results in the elderly subjects were compared with the findings in the control group.1) The caloric reaction, measured by the duration of nystagmus and maximum velocity of the slow phase, appeared to be significantly decreased in the 75-88 years age group.2) Functional asymmetry of caloric response was revealed at the parameter maximum velocity of the slow phase in 5 subjects over 65 years of age.3) All the members of the control group complained of definite rotatory vertigo, but 12 subjects (8.1%) more than 65 years of age had no sensation of dizziness.4) Our investigation indicates that the caloric response is generally well preserved up to a highly advanced age.