A cross-sectional, prospective ocular motor study in 72 patients with Niemann-Pick disease type C

被引:8
作者
Bremova-Ertl, Tatiana [1 ,2 ,3 ]
Abel, Larry [4 ]
Walterfang, Mark [5 ,6 ,7 ]
Salsano, Ettore [8 ]
Ardissone, Anna [8 ]
Malinova, Vera [9 ]
Kolnikova, Miriam [10 ]
Bayarri, Jordi Gascon [11 ]
Tavasoli, Ali Reza [12 ]
Ashrafi, Mahmoud Reza [12 ]
Amraoui, Yasmina [13 ]
Mengel, Eugen [13 ]
Kolb, Stefan A. [14 ]
Brecht, Andreas [14 ]
Bardins, Stanislavs [15 ,16 ]
Strupp, Michael [15 ,16 ]
机构
[1] Univ Hosp Bern, Dept Neurol, Inselspital, Bern, Switzerland
[2] Univ Bern, Bern, Switzerland
[3] Univ Hosp Bern, Ctr Rare Dis, Inselspital, Bern, Switzerland
[4] Deakin Univ, Sch Med, Optometry & Vis Sci, Waurn Ponds, Vic, Australia
[5] Royal Melbourne Hosp, Neuropsychiat Unit, Parkville, Vic, Australia
[6] Univ Melbourne, Melbourne Neuropsychiat Ctr, Parkville, Vic, Australia
[7] NorthWestern Mental Hlth, Parkville, Vic, Australia
[8] Fdn IRCCS Ist Neurol Carlo Besta, Unit Rare Neurodegenerat & Neurometab Dis, Milan, Italy
[9] Charles Univ Prague, Gen Univ Hosp Prague, Fac Med 1, Dept Pediat & Adolescence Med, Prague, Czech Republic
[10] Comenius Univ Childrens Hosp, Dept Child Neurol, Bratislava, Slovakia
[11] Hosp Univ Bellvitge, Dept Neurol, Lhospitalet De Llobregat, Spain
[12] Univ Tehran Med Sci, Childrens Med Ctr, Pediat Ctr Excellence, Pediat Neurol Div,Myelin Disorders Clin, Tehran, Iran
[13] SphinCS Gmbh, Clin Sci LSD, Hochheim, Germany
[14] Actelion, Bern, Switzerland
[15] Ludwig Maximilians Univ Munchen, Univ Hosp Munich, German Ctr Vertigo & Balance Disorders, Campus Grosshadern, Munich, Germany
[16] Ludwig Maximilians Univ Munchen, Univ Hosp Munich, Dept Neurol, Campus Grosshadern, Munich, Germany
关键词
biomarkers; Niemann-Pick type C; ocular motor function; saccades; supranuclear vertical gaze palsy; supranuclear vertical saccade palsy; video-oculography; BRAIN-STEM; VERTICAL SACCADES; EYE-MOVEMENTS; GAZE PALSY; DISORDERS; NEURONS; WHITE;
D O I
10.1111/ene.14955
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objective To characterize ocular motor function in patients with Niemann-Pick disease type C (NPC). Methods In a multicontinental, cross-sectional study we characterized ocular-motor function in 72 patients from 12 countries by video-oculography. Interlinking with disease severity, we also searched for ocular motor biomarkers. Our study protocol comprised reflexive and self-paced saccades, smooth pursuit, and gaze-holding in horizontal and vertical planes. Data were compared with those of 158 healthy controls (HC). Results Some 98.2% of patients generated vertical saccades below the 95% CI of the controls' peak velocity. Only 46.9% of patients had smooth pursuit gain lower than that of 95% CI of HC. The involvement in both downward and upward directions was similar (51 degrees/s (68.9, [32.7-69.3]) downward versus 78.8 degrees/s (65.9, [60.8-96.8]) upward). Horizontal saccadic peak velocity and latency, vertical saccadic duration and amplitude, and horizontal position smooth pursuit correlated best to disease severity. Compensating strategies such as blinks to elicit saccades, and head and upper body movements to overcome the gaze palsy, were observed. Vertical reflexive saccades were more impaired and slower than self-paced ones. Gaze-holding was normal. Ocular-motor performance depended on the age of onset and disease duration. Conclusions This is the largest cohort of NPC patients investigated for ocular-motor function. Vertical supranuclear saccade palsy is the hallmark of NPC. Vertical upward and downward saccades are equally impaired. Horizontal saccadic peak velocity and latency, vertical saccadic duration and amplitude, and horizontal position smooth pursuit can be used as surrogate parameters for clinical trials. Compensating strategies can contribute to establishing a diagnosis.
引用
收藏
页码:3040 / 3050
页数:11
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