scholarly journals A Multimodal Approach to the Quantification of Kinetic Tremor in Parkinson’s Disease

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 184
Author(s):  
Mateusz Szumilas ◽  
Krzysztof Lewenstein ◽  
Elżbieta Ślubowska ◽  
Stanisław Szlufik ◽  
Dariusz Koziorowski

Parkinson’s disease results in motor impairment that deteriorates patients’ quality of life. One of the symptoms negatively interfering with daily activities is kinetic tremor which should be measured to monitor the outcome of therapy. A new instrumented method of quantification of the kinetic tremor is proposed, based on the analysis of circles drawn on a digitizing tablet by a patient. The aim of this approach is to obtain a tremor scoring equivalent to that performed by trained clinicians. Models are trained with the least absolute shrinkage and selection operator (LASSO) method to predict the tremor scores on the basis of the parameters computed from the patients’ drawings. Signal parametrization is derived from both expert knowledge and the response of an artificial neural network to the raw data, thus the approach was named multimodal. The fitted models are eventually combined into model ensembles that provide aggregated scores of the kinetic tremor captured in the drawings. The method was verified with a set of clinical data acquired from 64 Parkinson’s disease patients. Automated and objective quantification of the kinetic tremor with the presented approach yielded promising results, as the Pearson’s correlations between the visual ratings of tremor and the model predictions ranged from 0.839 to 0.890 in the best-performing models.

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Gregory M. Pontone ◽  
Nadeeka Dissanayaka ◽  
Liana Apostolova ◽  
Richard G. Brown ◽  
Roseanne Dobkin ◽  
...  

AbstractAnxiety is a severe problem for at least one-third of people living with Parkinson’s disease (PD). Anxiety appears to have a greater adverse impact on quality of life than motor impairment. Despite its high prevalence and impact on daily life, anxiety is often undiagnosed and untreated. To better address anxiety in PD, future research must improve knowledge about the mechanism of anxiety in PD and address the lack of empirical evidence from clinical trials. In response to these challenges, the Parkinson’s Foundation sponsored an expert meeting on anxiety on June 13th and 14th 2018. This paper summarizes the findings from that meeting informed by a review of the existing literature and discussions among patients, caregivers, and an international, clinician-scientist, expert panel working group. The goal is to provide recommendations to improve our understanding and treatment of anxiety in PD.


2011 ◽  
Vol 17 (9) ◽  
pp. 693-697 ◽  
Author(s):  
T. Ellis ◽  
J.T. Cavanaugh ◽  
G.M. Earhart ◽  
M.P. Ford ◽  
K.B. Foreman ◽  
...  

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Santos García D. ◽  
Teresa de Deus Fonticoba ◽  
Carlos Cores ◽  
Guillermo Muñoz ◽  
Jose M. Paz González ◽  
...  

AbstractQuality of life (QOL) plays an important role in independent living in Parkinson’s disease (PD) patients, being crucial to know what factors impact QoL throughout the course of the disease. Here we identified predictors of QoL impairment in PD patients from a Spanish cohort. PD patients recruited from 35 centers of Spain from the COPPADIS cohort from January 2016, to November 2017, were followed up during 2 years. Health-related QoL (HRQoL) and global QoL (GQoL) were assessed with the 39-item Parkinson’s disease Questionnaire (PDQ-39) and the EUROHIS-QOL 8-item index (EUROHIS-QOL8), respectively, at baseline (V0) and at 24 months ± 1 month (V2). Clinically significant QoL impairment was defined as presenting an increase (PDQ-39SI) or decrement (EUROHIS-QOL8) at V2 ≥ 10% of the score at baseline (V0). A comparison with a control group was conducted for GQoL. GQoL did not change significantly in PD patients (N = 507; p = 0.686) or in the control group (N = 119; p = 0.192). The mean PDQ-39SI was significantly increased in PD patients (62.7 ± 8.5 years old; 58.8% males; N = 500) by 21.6% (from 16.7 ± 13 to 20.3 ± 16.4; p < 0.0001) at V2. Ninety-three patients (18.6%) presented a clinically significant HRQoL impairment at V2. To be younger (OR = 0.896; 95% CI 0.829–0.968; p = 0.006), to be a female (OR = 4.181; 95% CI 1.422–12.290; p = 0.009), and to have a greater increase in BDI-II (Beck Depression Inventory-II) (OR = 1.139; 95% CI 1.053–1.231; p = 0.001) and NMSS (Non-Motor Symptoms Scale) (OR = 1.052; 95% CI 1.027–1.113; p < 0.0001) total scores from V0 to V2 were associated with clinically significant HRQoL impairment at the 2-year follow-up (Hosmer–Lemeshow test, p = 0.665; R2 = 0.655). An increase in ≥5 and ≥10 points of BDI-II and NMSS total score at V2 multiplied the probability of presenting clinically significant HRQoL impairment by 5 (OR = 5.453; 95% CI 1.663–17.876; p = 0.005) and 8 (OR = 8.217; 95% CI, 2.975–22.696; p = 0.002), respectively. In conclusion, age, gender, mood, and non-motor impairment were associated with clinically significant HRQoL impairment after the 2-year follow-up in PD patients.


2017 ◽  
Vol 40 (7) ◽  
pp. 791-797 ◽  
Author(s):  
Emine Eda Kurt ◽  
Buket Büyükturan ◽  
Öznur Büyükturan ◽  
Hatice Rana Erdem ◽  
Figen Tuncay

2008 ◽  
Vol 23 (10) ◽  
pp. 1466-1468 ◽  
Author(s):  
Kim C. Stewart ◽  
Hubert H. Fernandez ◽  
Michael S. Okun ◽  
Charles E. Jacobson ◽  
Chris J. Hass

2018 ◽  
Vol 26 (1-2) ◽  
pp. 3-13 ◽  
Author(s):  
Yan-Ya Chen ◽  
Bing-Sheng Guan ◽  
Ze-Kai Li ◽  
Qiao-Hong Yang ◽  
Tian-Jiao Xu ◽  
...  

Introduction Telehealth intervention has been proposed as a sustainable and innovative intervention approach to Parkinson’s disease (PD) patients, but there are still conflicting results in the literature about its effect. This study aimed to evaluate the efficacy of telehealth intervention for PD patients. Methods PubMed, EMBASE, CENTRAL and China National Knowledge Infrastructure (CNKI) were searched from the inception to June 2018 for randomized controlled trials (RCTs) and cohort studies, without language restrictions. When feasible, data were statistically pooled for meta-analysis using Review Manager 5.3. Otherwise, narrative summaries were used. Results Twenty-one studies were included. With respect to PD severity, compared with usual care, telehealth intervention was beneficial in lowering motor impairment of PD patients significantly (mean difference (MD) = –2.27, 95% confidence interval (95% CI) −4.25 to −0.29, p = 0.02), rather than mental status (MD = –0.98, 95% CI −2.61 to 0.65, p = 0.24), activities of daily living (MD = –1.51, 95% CI −4.91 to 1.89, p = 0.38) and motor complications (MD = –0.36, 95% CI −1.31 to 0.59, p = 0.46). Telehealth intervention did not lead to significant reduction in quality of life (standardized mean difference (SMD) = 0.04, 95% CI −0.20 to 0.28, p = 0.76), depression (SMD = –0.12, 95% CI −0.37 to 0.13, p = 0.34), cognition (MD = 0.37, 95% CI −0.34 to 1.09, p = 0.31) and balance (MD = 0.09, 95% CI −2.49 to 2.66, p = 0.95). Discussion Telehealth intervention is an effective option for individuals with PD to improve their motor impairment. Further well-designed studies are warranted to confirm our findings.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
S. Skodda ◽  
W. Grönheit ◽  
N. Mancinelli ◽  
U. Schlegel

Impairment of voice and speech occurs in the majority of patients in the course of Parkinson's disease (PD). The aim of the current study was to survey the changes of voice and speech performance in the individual patients over time. 80 patients with PD and 60 healthy speakers were tested and retested after at least 12 months (average time interval: 32.5 months). Participants had to read a given text which was digitally recorded as a source for the perceptual and acoustic analysis. Stage of the disease and global motor impairment were rated according to the accepted scales. As a result, abnormalities of voice and speech were already present in mildly affected patients and there were significant deteriorations of quality of voice and articulatory velocity and precision between baseline and followup examination which showed no correlation with the time interval between the visits. Summarized, voice, and speech performance were found to further deteriorate in the individual patient in the course of time although global motor impairment was widely stable which might be a hint for nondopaminergic mechanisms of progression of dysarthrophonia. Further investigations are warranted to get a better insight into the dynamics of the progression of voice and speech impairment in PD as a precondition for the development of therapeutic approaches.


2011 ◽  
Vol 26 (3) ◽  
pp. 449-456 ◽  
Author(s):  
Bart Post ◽  
Dino Muslimovic ◽  
Nan van Geloven ◽  
Johannes D. Speelman ◽  
Ben Schmand ◽  
...  

2015 ◽  
Vol 156 (12) ◽  
pp. 472-478 ◽  
Author(s):  
Péter Kincses ◽  
Norbert Kovács ◽  
Kázmér Karádi ◽  
János Kállai

This paper is a summary report on the basic questions of the biopsychosocial approach to Parkinson’s disease. It deals with cognitive, affective and psychological health issues which significantly influence the outcome of the physical rehabilitation. In spite of the unchanged cognitive status, the psychological burden of the changes in the quality of life, the obstruction, the change in the affective tone, and the shrinking ability to fulfil social roles decrease the patient’s quality of life. An interdisciplinary approach is best suited for mitigating these effects. Not only the patient but also his/her family and environment is seriously affected by the disease and its consequences. Treatment and rehabilitation options for increasing or maintaining the quality of life of the affected patients are diverse, and significantly depend on the features of the health care system. The authors believe that the following review emphasizing health psychological principles may contribute to the work of professionals working in clinical and rehabilitational fields and through them may increase the quality of life of patients and their family. Orv. Hetil., 2015, 156(12), 472–478.


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