摘要
目的:分析良性阵发性位置性眩晕( BPPV)患者变位试验中反转相眼震的参数特征,探讨其临床意义和产生机制。方法 BPPV患者183例,其中后半规管管石症( posterior semicircular canalithasis, PSC-Can)108例(59.0%),水平半规管管石症(horizontal semicircular canalithasis, HSC-Can)55例(30.1%),水平和后半规管的壶腹嵴顶结石症(semicircular canal cupulolithiasis, SC-Cup)15例(8.2%),上半规管管石症(anterior semicircular canalithasis ,ASC-Can)5例(2.7%)。应用视频眼震图仪记录变位试验诱发的眼震,分析比较Dix-Hallpike试验各头位的垂直眼震以及滚转试验各头位水平眼震的方向、强度、时间等参数特点。结果15例SC-Cup和5例ASC-Can患者均未见反转相眼震;108例PSC-Can患者在Dix-Hallpike试验患侧悬头位诱发向上的垂直眼震(第一相眼震)消失之后,其中54例(50.0%)出现向下的垂直眼震(反转相眼震),其第一相眼震与反转相眼震的潜伏期、持续时间、眼震强度分别为[(2.00±1.10) s,(3.54±1.42) s]、[(16.27±4.95) s,(61.65±33.69) s]、[(51.80±25.25)°/s,(10.65±6.29)°/s];55例HSC-Can患者在滚转试验患侧转头位诱发与转头方向相同的水平眼震(第一相眼震)消失之后,其中43例(78.2%)出现与转头方向相反的水平眼震(反转相眼震),其第一相眼震与反转相眼震的潜伏期、持续时间、眼震强度分别为[(1.67±1.07)s,(3.57±1.89) s]、[(25.19±9.74) s,(70.48±40.26) s]、[(68.47±30.18)°/s,(11.22±8.78)°/s]。通过配对t检验分别比较PSC-Can及HSC-Can患者第一相眼震与反转相眼震的潜伏期、眼震强度及持续时间,其差异均具有统计学意义( P值均<0.05)。通过独立样本t检验比较这两组管石症患�
Objective To investigate the clinical significances and formation mechanism by analyzing the characteristics of the reverse phase nystagmus parameters from benign paroxysmal positional vertigo ( BPPV ) positioning test.Methods There were 183 cases with BPPV , including 108 cases (59.0%) of posterior semicircular canal canalthasis , 55 cases ( 30.1%) of horizontal semicircular canal canalthasis, and 15 cases(8.2%) of horizontal and posterior semicircular canal cupulolithiasis and 5 cases (2.7%) of anterior semicircular canalithasis .The video-nystagmograph was utilized in positioning tests to induce nystagmus.The direction , intensity , time parameters characteristic of vertical nystagmus in Dix-Hallpike test and horizontal nystagmus in roll test were analyzed and compared.Results There were no reversal phase nystagmus in 15 cases of semicircular canal cupulolithiasis and 5 cases of anterior semicircular canalithasis .After the disappearance of vertical nystagmus which induced by hanging position ( the first phase nystagmus ) in 108 cases of posterior semicircular canalithasis of Dix-Hallpike test , there was 54 cases ( 50.0%) of posterior semicircular canal canalthasis displayed downward vertical nystagmus (reverse phase nystagmus ) .The latency, duration time and intensity of the first phase nystagmus and reverse phase nystagmus were [(2.00 ±1.10)s, (3.54 ±1.42)s], [(16.27 ±4.95)s, (61.65 ±33.69) s] and [ ( 51.80 ±25.25 ) °/s, ( 10.65 ±6.29 ) °/s ] respectively; 43 cases ( 78.2%) of horizontal semicircular canal canalithasis displayed the opposite to turning head ( reverse phase nystagmus ) after the horizontal nystagmus , similar with turning head disappeared in Roll test.The latency, duration time and intensity of the first phase of nystagmus and reverse phase nystagmus were [(1.67 ±1.07) s, (3.57 ± 1.89)s], [(25.19 ±9.74) s, (70.48 ±40.26�
出处
《中华耳鼻咽喉头颈外科杂志》
CAS
CSCD
北大核心
2014年第5期384-389,共6页
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
基金
天津市卫生局攻关课题(10KG219)
关键词
眩晕
前庭功能试验
眼震
病理性
Vertigo
Vestibular function tests
Nystagmus,pathologic