Abstract:
BACKGROUND/OBJECTIVE:Essential tremor (ET) can diminish functioning and quality of life (QOL) but generic QOL measures may be relatively insensitive to ET and its therapies. We sought to develop an ET-specific measure that might be more sensitive, acceptable to patients, relatively brief, and easily used. DESIGN/METHODS:A sample of 200 patients (average age 70 years, range 30-91; average disease duration 15 years) rated the extent to which tremor impacts a function or state, tremor severity in various body parts, perceived health, and overall QOL. Responses to this initial questionnaire were subjected to principal components analysis (PCA). Inspection of factor coordinates, Eigenvalues, variance accounted for, and correlation matrices were used to select items for confirmatory PCA. Final scale reliability was assessed using Cronbach's alpha. Validity was evaluated by correlations between QOL scales and self-rated tremor severity. RESULTS:PCA of 65 initial items yielded 11 factors accounting for 71% of variance. Six factors were discarded. Two items were eliminated for not loading on a factor and 33 for perceived redundancy. Confirmatory PCA of the retained 30 items yielded an almost identical factor structure (six factors, 70% of variance accounted for, and similar item loadings). Because two factors had very few items loading on them, these two factors were combined into one scale. The final measure has five scales: Physical, Psychosocial, Communication, Hobbies/Leisure, and Work/Finance. Reliability was excellent for the whole instrument and four scales (> or =0.89), and good for the Work/Finance scale (0.79). Severity of voice and head tremor were the best correlates of Communication (0.70 and 0.35), while the Physical scale was related to right and left upper extremity tremor (0.59 and 0.56). Scales correlated more highly with patients' rating of their overall QOL than their health perception. CONCLUSIONS:A brief, 30-item, ET-specific QOL scale with excellent reliability was developed. Preliminary validity data are encouraging. The Quality of Life in Essential Tremor Questionnaire (QUEST) promises to facilitate QOL measurement in ET.
journal_name
Parkinsonism Relat Disordjournal_title
Parkinsonism & related disordersauthors
Tröster AI,Pahwa R,Fields JA,Tanner CM,Lyons KEdoi
10.1016/j.parkreldis.2005.05.009subject
Has Abstractpub_date
2005-09-01 00:00:00pages
367-73issue
6eissn
1353-8020issn
1873-5126pii
S1353-8020(05)00101-Xjournal_volume
11pub_type
临床试验,杂志文章abstract:BACKGROUND:Balance training has been demonstrated to improve postural control in patients with Parkinson's disease (PD). The objective of this pilot randomized clinical trial was to investigate whether a balance training program using augmented visual feedback is feasible, safe, and more effective than conventional bal...
journal_title:Parkinsonism & related disorders
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.parkreldis.2014.09.022
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVE:To determine the nationwide prevalence of primary dystonia, ataxia and hereditary spastic paraplegia (HSP) in Sweden. METHODS:We extracted data on all patients who were registered in The National Patient Register (NPR) in Sweden (population 9.64 million) at least twice during five consecutive years with a di...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2019.10.028
更新日期:2019-12-01 00:00:00
abstract::A 68-year-old, normal female volunteer was scanned by positron emission tomography (PET) with [(18)F]6-L-fluorodopa (FD). Striatal FD uptake was in the high normal range. Subsequently, she developed parkinsonism 3.7 years after the scan. A repeat FD PET scan revealed a significant reduction of FD uptake by 20% over th...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/1353-8020(96)00010-7
更新日期:1996-07-01 00:00:00
abstract:AIM:To clarify the characteristics of hemodynamic responses to exercise and orthostasis in Parkinson's disease patients, especially those with autonomic failure. METHODS:Clinical audit of supine cycling exercise test data (with active standing tests pre- and post-exercise) of Parkinson's patients with autonomic dysfun...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2014.02.006
更新日期:2014-05-01 00:00:00
abstract::Hyperechogenicity of the substantia nigra (SN) detected by transcranial sonography is a typical finding in more than 90% of patients with Parkinson's disease (PD) but may also be visible in about 9% of healthy adults. In this study, we found a correlation between SN hyperechogenicity and subtle motor dysfunction in ot...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2006.07.006
更新日期:2007-08-01 00:00:00
abstract:INTRODUCTION:Patients with Parkinson's disease (PD) frequently lose weight, even in the early stages of the disease. Our objective was to clarify the association between low body mass index (BMI) and life prognosis in PD. METHODS:We conducted a retrospective cohort study of 651 PD patients (380 females), with a primar...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2018.05.011
更新日期:2018-10-01 00:00:00
abstract:BACKGROUND:Japan and the United States (US) have different cultures of caregiving including differences in family structure and social programs that may influence caregiver strain. Differences in caregiver strain between regions in Japan and in the US have not been investigated in patient-spouse dyads in PD. OBJECTIVE...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2013.02.014
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVE:The primary objective was to evaluate the efficacy and safety of droxidopa as add-on therapy in improving stiffness, tremors and other motor functions and activities of daily living for moderate-to-severe Parkinson's disease (PD). METHODS:PD patients, above Hoehn-Yahr III (including Hoehn-Yahr III), were ran...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.parkreldis.2015.08.023
更新日期:2015-10-01 00:00:00
abstract:INTRODUCTION:Although the hallmark feature of essential tremor (ET) is tremor, there is growing appreciation that cognitive impairment also occurs, including increased prevalence of mild cognitive impairment (MCI) and increased prevalence and incidence of dementia. With emerging knowledge of ET-cognitive impairment, co...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,评审
doi:10.1016/j.parkreldis.2019.02.038
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVES:Longitudinal assessment of a Parkinson's disease (PD) cohort, to investigate the evolution or REM sleep behavior symptoms (RBD) over time and to test the relation between RBD at onset and motor dysfunction progression. METHODS:An early stage PD cohort (n = 61) was assessed at two time points, separated by a...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2013.07.017
更新日期:2013-12-01 00:00:00
abstract:INTRODUCTION:Increasing evidence shows a strong association between idiopathic REM sleep behavior disorder (iRBD) and α-synucleinopathies. Recent studies have indicated an inflammatory mechanism in the pathogenesis of α-synucleinopathies. Whether peripheral inflammatory cytokines are altered in iRBD and can be biomarke...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2020.07.017
更新日期:2020-09-01 00:00:00
abstract::Today's society is changing rapidly and individuals increasingly favor an active role in designing their own lives. Contemporary patients are no exception, but the present health care system-which is organized primarily from the provider's perspective-is not yet prepared for this development. Here, we argue that an al...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,评审
doi:10.1016/j.parkreldis.2013.04.022
更新日期:2013-11-01 00:00:00
abstract:PURPOSE:The young-onset subtype of Parkinson's disease (YOPD) differs from the late-onset subtype (LOPD) in drug responsiveness, incidence of motor complications, and prognosis. The pathophysiology underlying these differences remains largely unknown. This study investigated whether the two subtypes differ in the patte...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2015.10.017
更新日期:2015-12-01 00:00:00
abstract::Deficiency in skilled motor activity is primarily attributed to the loss of dopaminergic neurons in the pars compacta of substantia nigra (SNc), which can be detected by performance of the rotarod test. Previous reports have demonstrated impaired skilled motor behavior in rats during the pre-motor stage of Parkinson's...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2010.12.017
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Although essential tremor (ET) is commonly encountered in clinical practice, historically, there has been considerable disagreement as how to best define it, and now with a growing sense of its clinical complexity, how to best encapsulate it. Here, I draw attention to five issues of current uncertainty. MET...
journal_title:Parkinsonism & related disorders
pub_type: 历史文章,杂志文章,评审
doi:10.1016/j.parkreldis.2017.07.004
更新日期:2018-01-01 00:00:00
abstract::Hemifacial spasm (HFS) resulting from Chiari type I malformation (CIM) is rare. We retrospectively evaluated five patients with CIM and HFS among a series of 103 subjects. The frequency of HFS associated to CIM was of 4.85%. The clinical profile did not differ from the classical primary cases except for young-onset de...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2007.04.002
更新日期:2008-01-01 00:00:00
abstract::The feasibility and efficacy of deep brain stimulation (DBS) has offered new possibilities for treatment of movement disorders. Mechanical failure of the DBS system is a potential complication. Here we report five patients who presented with mechanical failure of the DBS system. Radiographs of the skull and cervical s...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2003.11.001
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Deep brain stimulation of the subthalamic nucleus (STN-DBS) reduces motor fluctuations in Parkinson's disease (PD) but its effect on non-motor fluctuations (NMF) is not well known. In this study we assess the efficacy of STN-DBS on NMF two years after surgery. METHODS:Autonomic, cognitive, psychiatric and s...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2013.02.001
更新日期:2013-05-01 00:00:00
abstract::Levodopa serves as the gold standard of anti-parkinsonian therapy and nearly every patient with Parkinson's disease eventually receives this drug. To improve upon levodopa therapy, several forms of treatment have been devised to augment its actions, and new delivery systems are under development. This new research off...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,评审
doi:10.1016/S1353-8020(09)70009-4
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Multiple system atrophy (MSA) can clinically be divided into the cerebellar (MSA-C) and the parkinsonian (MSA-P) variants. It is unknown whether the variation in clinical expression is also reflected by a different underlying neurochemical profile. METHODS:We analyzed brain specific proteins and neurotransm...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2007.02.002
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVE:To estimate the frequency and correlates of involuntary emotional expression disorder (IEED) in Parkinson's disease (PD) using the Center for Neurologic Study-Lability Scale (CNS-LS) and recently-proposed diagnostic criteria for IEED. BACKGROUND:IEED is characterized by uncontrollable emotional episodes, typ...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2009.01.001
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:Deep brain stimulation of the internal pallidum (GPi-DBS) is effective for various types of drug-refractory primary dystonias. Rare clinical forms as dystonic camptocormia may profit but available data are scarce. METHODS:We here report on a retrospective clinical assessment of three patients with primary d...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2013.10.022
更新日期:2014-02-01 00:00:00
abstract::To assess possible differences in dopamine metabolism that could parallel disease progression in Parkinson's disease (PD), we measured dopamine (DA) and its metabolites in the cerebrospinal fluid (CSF) in PD patients at different stages of disease: de novo (DEN), advanced not showing dyskinesias (ADV), and advanced wi...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2008.10.001
更新日期:2009-06-01 00:00:00
abstract::The aim of the present study was to evaluate complex upper limb motor function in newly diagnosed, untreated Parkinson's disease (PD) patients. Four different unimanual upper limb motor tasks were applied to 13 newly diagnosed, untreated PD patients and 13 age- and sex-matched controls. In a handwriting task, PD patie...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2007.07.019
更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:somatosensory temporal discrimination threshold (STDT) measures the ability to perceive two stimuli as being sequential. Altered STDT has been reported in Parkinson's disease (PD). The cerebellum seems to play a role in the pathophysiology of PD, and may consequently be involved in the pathophysiology of S...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2015.04.004
更新日期:2015-07-01 00:00:00
abstract:BACKGROUND:The freezing phenomenon is among the most disabling symptoms of Parkinson's disease (PD) manifesting most commonly as Freezing of Gait with a paroxysmal cessation of effective stepping. Recent studies have suggested that freezing is related to both impairments in conflict resolution as well as the processing...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.parkreldis.2013.06.002
更新日期:2013-11-01 00:00:00
abstract::Clinical symptoms in Parkinson's disease (PD) comprise both motor and non-motor symptoms. In this disease, synucleinopathic-induced, nigral dopamine deficiency-related dysfunction of the basal ganglia is held responsible for the characteristic levodopa-responsive motor signs and symptoms (bradykinesia, hypokinesia, ri...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,评审
doi:10.1016/S1353-8020(09)70770-9
更新日期:2009-12-01 00:00:00
abstract::We report here on a Japanese family in which five members in three generations developed non-progressive adult onset cortical tremor and epilepsy. Other than tremulous movements resembling essential tremor, the neurologic findings were unremarkable. Electrophysiologic studies revealed giant somatosensory evoked potent...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/s1353-8020(97)00001-1
更新日期:1997-04-01 00:00:00
abstract::An abnormal accumulation and distribution of brain iron are common to different neurodegenerative disorders, including Parkinson's disease (PD), and alteration of genes involved in iron metabolism cause neurodegeneration with brain iron accumulation. HFE participates in the regulation of iron metabolism, its mutations...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章
doi:10.1016/j.parkreldis.2007.10.011
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Deep brain stimulation (DBS) is an effective and approved therapy for advanced Parkinson's disease (PD), and a recent study suggests efficacy in mid-stage disease. This manuscript reports the results of a pilot trial investigating preliminary safety and tolerability of DBS in early PD. METHODS:Thirty subjec...
journal_title:Parkinsonism & related disorders
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.parkreldis.2014.03.019
更新日期:2014-07-01 00:00:00