scholarly journals Development of Computer-Aided Semi-Automatic Diagnosis System for Chronic Post-Stroke Aphasia Classification with Temporal and Parietal Lesions: A Pilot Study

2020 ◽  
Vol 10 (8) ◽  
pp. 2984
Author(s):  
Bhagya Nathali Silva ◽  
Murad Khan ◽  
Ruchire Eranga Wijesinghe ◽  
Samantha Thelijjagoda ◽  
Kijun Han

Survivors of either a hemorrhagic or ischemic stroke tend to acquire aphasia and experience spontaneous recovery during the first six months. Nevertheless, a considerable number of patients sustain aphasia and require speech and language therapy to overcome the difficulties. As a preliminary study, this article aims to distinguish aphasia caused from a temporoparietal lesion. Typically, temporal and parietal lesions cause Wernicke’s aphasia and Anomic aphasia. Differential diagnosis between Anomic and Wernicke’s has become controversial and subjective due to the close resemblance of Wernicke’s to Anomic aphasia when recovering. Hence, this article proposes a clinical diagnosis system that incorporates normal coupling between the acoustic frequencies of speech signals and the language ability of temporoparietal aphasias to delineate classification boundary lines. The proposed inspection system is a hybrid scheme consisting of automated components, such as confrontation naming, repetition, and a manual component, such as comprehension. The study was conducted involving 30 participants clinically diagnosed with temporoparietal aphasias after a stroke and 30 participants who had experienced a stroke without aphasia. The plausibility of accurate classification of Wernicke’s and Anomic aphasia was confirmed using the distinctive acoustic frequency profiles of selected controls. Accuracy of the proposed system and algorithm was confirmed by comparing the obtained diagnosis with the conventional manual diagnosis. Though this preliminary work distinguishes between Anomic and Wernicke’s aphasia, we can claim that the developed algorithm-based inspection model could be a worthwhile solution towards objective classification of other aphasia types.

2020 ◽  
Author(s):  
Frederikke Vestergaard Nielsen ◽  
Mette Rønn Nielsen ◽  
Ida Lund Lorenzen ◽  
Jesper Amstrup ◽  
Torben Anders Kløjgaard ◽  
...  

Abstract Background The number of patients calling for an ambulance increases. A considerable number of patients receive a non-specific diagnosis at discharge from the hospital, and this could imply less serious acute conditions, but the mortality has only scarcely been studied. The aim of this study was to examine the most frequent sub-diagnoses among patients with hospital non-specific diagnoses after calling 112 and their subsequent mortality. Methods A historical cohort study of patients brought to the hospital by ambulance after calling 112 in 2007-2014 and diagnosed with a non-specific diagnosis, chapter R or Z, in the International Classification of Diseases, 10 th edition (ICD-10). 1-day and 30-day mortality was analyzed by survival analyses and compared by the log-rank test. Results We included 74,847 ambulance runs in 53,937 unique individuals. The most frequent diagnoses were ‘unspecified disease’ (Z039), constituting 47.0 % (n 35,279). In children 0-9 years old, ‘febrile convulsions’ was the most frequent non-specific diagnosis used in 54.3 % (n 1,602). Overall, 1- and 30-day mortality was 2.2 % (n 1,205) and 6.0 % (n 3,258). The highest mortality was in the diagnostic group ‘suspected cardiovascular disease’ (Z035) and ‘unspecified disease’ (Z039) with 1-day mortality 2.6 % (n 43) and 2.4 % (n 589), and 30 day mortality of 6.32 % (n 104) and 8.1 % (n 1,975). Conclusion Among patients calling an ambulance and discharged with non-specific diagnoses the 1- and 30-day mortality, despite modest mortality percentages lead to a high number of deaths.


2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
R M J Van Der Velden ◽  
D V M Verhaert ◽  
A N L Hermans ◽  
M Gawalko ◽  
D Duncker ◽  
...  

Abstract Introduction During the coronavirus disease 2019 (COVID-19) pandemic, numerous centres in Europe used on-demand photoplethysmography (PPG) technology to remotely assess heart rate and rhythm in conjunction with teleconsultations within the TeleCheck-AF project. Purpose To develop an educational structured stepwise practical guide on how to interpret PPG signals and to study typical clinical scenarios how on-demand PPG was used in the TeleCheck-AF project. Methods During an online conference, the structured stepwise practical guide on how to interpret PPG signals was discussed and further refined during an internal review process. We provide the number of respective PPG recordings and number of patients managed within a clinical scenario during the TeleCheck-AF project. Results To interpret PPG recordings, we introduce a structured stepwise practical guide and provide representative PPG recordings. In the TeleCheck-AF project, 2522 subjects collected 90.616 recordings. The majority of these recordings was classified by the PPG algorithm as sinus rhythm (57.6%), followed by atrial fibrillation (AF) (23.6%). In 9.7% of recordings the quality was too low to interpret. Other observed rhythms were tachycardia (1.4%), extra systoles (4.7%), bigeminy episodes (1.8%), trigeminy episodes (0.6%) and atrial flutter (0.2%). The most frequent clinical scenario where PPG technology was used in the TeleCheck-AF project was follow-up after AF ablation (1110 patients) followed by heart rate and rhythm assessment around (tele)consultation (966 patients), sometimes including remote PPG-guided adaption of rate or rhythm control. 275 patients were followed around cardioversion, either (semi-)acute or elective. Other possible scenarios are assessment of palpitations, assessment of symptom-rhythm correlation and monitoring during up-titration of heart failure medication. Conclusion We introduce a newly developed structured stepwise practical guide on PPG signal interpretation developed based on presented experiences from TeleCheck-AF. The present clinical scenarios for the use of on-demand PPG technology derived from the TeleCheck-AF project will help to implement PPG technology in the management of arrhythmia patients. FUNDunding Acknowledgement Type of funding sources: None. TeleCheck-AF clinical scenarios Classification of PPG recordings


Author(s):  
Alex Leff ◽  
Jenny Crinion

This chapter covers the classification of acquired aphasic syndromes. It illustrates some of the speech errors aphasic stroke patients make with videos of a patient describing a picture and attempting to repeat words. The main part of the chapter assesses the evidence base for speech and language therapy (SALT) and answers the following questions: Does SALT work? What is the correct dose and intensity? And is it ever too late for SALT intervention? We then discuss two main adjuvants to SALT: one old—drug therapy; one new—non-invasive brain stimulation. Finally, we examine the role for e-rehabilitation and augmentative aids before asking what the future might hold for aphasia therapy, and wondering if it might already be here.


Pain Medicine ◽  
2019 ◽  
Author(s):  
Enrique Martínez-Pías ◽  
Javier Trigo-López ◽  
David García-Azorín ◽  
Aisling McGreal ◽  
Ángel Luis Guerrero Peral

Abstract Objective Cranial pain is a condition that has a negative impact on human lives, and occipital neuralgia is among its causes. This study aims to evaluate the clinical characteristics and therapeutic results of a series of patients with occipital neuralgia. Design Prospective registry (observational study). Settings Headache outpatient clinic in a tertiary hospital. Subjects Sixty-eight cases. Methods Demographic and nosological characteristics have been analyzed, as well as treatment response of occipital neuralgia. All patients were recruited between January 2008 and January 2018, and the diagnosis of occipital neuralgia was made according to the International Headache Society (International Classification of Headache Disorders) criteria being utilized at the time of diagnosis. Results Sixty-eight patients were diagnosed with occipital neuralgia, which corresponded to 1.2% of the total number of patients (5,515) who visited our Headache Unit during the aforementioned period. Fifty-four (79.4%) of them were female. Baseline pain was present in 62 (91.1%) patients, and exacerbations in 42 (61.8%). Latency from onset (range) was 27.7 ± 56.1 (1–360) months. Conclusions Occipital neuralgia is an uncommon disorder in the sample explored. The prolonged latency between the onset of symptoms and diagnosis suggests that there should be an increased awareness of this disorder.


2015 ◽  
Vol 8 (4) ◽  
pp. 504-518 ◽  
Author(s):  
Ang Teoh Ong ◽  
Aouache Mustapha ◽  
Zulkifilie Bin Ibrahim ◽  
Suzaimah Ramli ◽  
Boo Chai Eong

2003 ◽  
Vol 17 (08n09) ◽  
pp. 1947-1952 ◽  
Author(s):  
Dong Jo Yang ◽  
Chang Hyun Kim ◽  
Jae Yeol Kim

Diagnosis or measurements using Infrared thermo-image hasn't been available. A quick diagnosis and thermal analysis can be possible when that kind of system is introduced to the investigation of each part. In this study, Infrared Camera, Thermo-vision 900 of AGEMA Company was used in order to investigate. Infrared Camera usually detects only Infrared wave from the light in order to illustrate the temperature distribution. Infrared diagnosis system can be applied to various the field. But the defect discrimination can be automatic or mechanization on the special shoes total inspection system. Also, it is more effective to development and composition on the shoes total inspection system. In this study, it is introduction method of special shoes nondestructive total inspection. Performance of the proposed method are shown by through thermo-Image.


1999 ◽  
Vol 32 (4) ◽  
pp. 565-575 ◽  
Author(s):  
Tae-Hyeon Kim ◽  
Tai-Hoon Cho ◽  
Young Shik Moon ◽  
Sung Han Park

1985 ◽  
Vol 16 (1) ◽  
pp. 11-15
Author(s):  
Kurt Kraetschmer

The paper discusses problems encountered in counseling and rehabilitating the client who suffers from a speech-language impairment which limits his communicative abilities and skills. The first part addresses questions germane to family counseling and provides insight into the problem of adequate environment for speech-language therapy. The second part propounds a classification of various speech-langulfge disorders which are frequently encountered in the clinical practice. It also describes the characteristic features of these disorders and appropriate intervention strategies. The last part presents two case studies from the clinical practice to show the results of an integrative approach to the rehabilitation of the speech-language impaired client.


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