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Condition: Reflex Sympathetic Dystrophy

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Total 1447 results found since Jan 2013.

Evaluation of post-stroke spasticity from the subacute to chronic stages: A clinical and neurophysiologic study of motoneuron pool excitability
This study aimed to compare changes in H-reflex excitability in the spastic and unimpaired upper and lower limbs of patients with acute and chronic stroke. We also investigated the relationship between the degree of spasticity as assessed by the MAS and motor neuron pool excitability with by analyzing H-reflex excitability. Sixty adult patients with a first-ever stroke were recruited for this study. MAS scores were recorded in the post-stroke upper and lower limb muscles. H-reflexes and M-responses of the bilateral flexor carpi radialis and soleus were tested by stimulating the median and tibial nerves. The results showed ...
Source: The Chinese Journal of Physiology - July 1, 2022 Category: Physiology Authors: Heng-Yi Shen Jou-Yu Lin Chien-Cheng Chen Hung-Fu Lee Hsien Chao Fu-Kong Lieu Szu-Fu Chen Source Type: research

Flexor carpi radialis H-reflex in different body positions in patients with post-stroke
ConclusionSpinal stretch reflex hyperexcitability in strongly affected UEs could commonly occur in different phases of recovery after stroke. Down-modulation of SSR excitability could occur in less-affected UEs in the standing position compared with the supine position, while modulation of SSR excitability might be altered in strongly affected UEs and vary in different phases of recovery. There could be some correlation between postural control and UE SSR hyperexcitability. The H-reflex may help to offer a new perspective on rehabilitation evaluation and interventions to promote UE motor control after stroke.
Source: Frontiers in Neurology - November 8, 2022 Category: Neurology Source Type: research

Effect of Capsaicin Atomization on Cough and Swallowing Function in Patients With Hemorrhagic Stroke: A Randomized Controlled Trial
CONCLUSIONS: Capsaicin nebulization can help enhance the number of coughs in response to capsaicin, reduce postswallow residue, and increase the level of SP in patients with hemorrhagic stroke and has a positive effect on pulmonary inflammation. This study provides intervention points for cough and swallowing rehabilitation after a hemorrhagic stroke.SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.21956903.PMID:36716393 | DOI:10.1044/2022_JSLHR-22-00296
Source: Journal of speech, language, and hearing research : JSLHR - January 30, 2023 Category: Speech-Language Pathology Authors: Wu Chao Mao You-Qin Chen Hong Zhang Hai-Ying None Yang-Li Jiang Su-Xue Xu Lan Wang Zhong Source Type: research

Influence of periodic leg movements in sleep on stroke outcome
Abstract Destructive lesions, as cerebrovascular diseases, have been shown to lead to the development of periodic leg movements in sleep (PLMS), secondary to the loss of cortical or subcortical inhibition exerting on the brainstem generators. We designed a prospective study to investigate the association of PLMS with a clinical outcome in 24 patients with acute ischemic cerebrovascular diseases. The medical history of patients and risk factors of ischemic stroke were questioned. A whole‐night polysomnographic (PSG) recording was performed; detailed PSG data including PLM index and PLM‐arousal index were analyzed. Strok...
Source: Sleep and Biological Rhythms - June 1, 2013 Category: Neurology Authors: Gulcin Benbir, Derya Karadeniz Tags: Original Article Source Type: research

Finger-thumb coupling contributes to exaggerated thumb flexion in stroke survivors
The purpose of this study was to investigate altered finger-thumb coupling in individuals with chronic hemiparesis poststroke. First, an external device stretched finger flexor muscles by passively rotating the metacarpophalangeal (MCP) joints. Subjects then performed isometric finger or thumb force generation. Forces/torques and electromyographic signals were recorded for both the thumb and finger muscles. Stroke survivors with moderate (n = 9) and severe (n = 9) chronic hand impairment participated, along with neurologically intact individuals (n = 9). Stroke survivors exhibited strong interactions between finger and thu...
Source: Journal of Neurophysiology - June 15, 2014 Category: Neurology Authors: Kamper, D. G., Fischer, H. C., Conrad, M. O., Towles, J. D., Rymer, W. Z., Triandafilou, K. M. Tags: Articles Source Type: research

Ischemic Stroke Activates Hematopoietic Bone Marrow Stem Cells.
Conclusions: Ischemic stroke activates hematopoietic stem cells via increased sympathetic tone, leading to a myeloid bias of hematopoiesis and higher bone marrow output of inflammatory Ly6Chigh monocytes. PMID: 25362208 [PubMed - as supplied by publisher]
Source: Circulation Research - October 31, 2014 Category: Cardiology Authors: Courties G, Herisson F, Sager H, Heidt T, Ye Y, Ying W, Sun Y, Severe N, Dutta P, Scharff J, Scadden D, Weissleder R, Swirski FK, Moskowitz MA, Nahrendorf M Tags: Circ Res Source Type: research

Neuroanatomic Correlates of Post Stroke Hyperglycemia
This article is protected by copyright. All rights reserved.
Source: Annals of Neurology - December 1, 2014 Category: Neurology Authors: Klemens Winder, Frank Seifert, Tessa Ohnemus, Eva‐Maria Sauer, Stephan Kloska, Arnd Dörfler, Max J. Hilz, Stefan Schwab, Martin Köhrmann Tags: Research Article Source Type: research

Estimating the time course of population excitatory postsynaptic potentials in motoneurons of spastic stroke survivors
Hyperexcitable motoneurons are likely to contribute to muscle hypertonia after a stroke injury; however, the origins of this hyperexcitability are not clear. One possibility is that the effective duration of the Ia excitatory postsynaptic potential (EPSP) is prolonged, increasing the potential for temporal summation of EPSPs, making action potential initiation easier. Accordingly, the purpose of this study was to quantify the time course of EPSPs in motoneurons of stroke survivors. The experimental protocol, which was based on parameters derived from simulation, involved sequential subthreshold electrical stimuli delivered...
Source: Journal of Neurophysiology - March 15, 2015 Category: Neurology Authors: Hu, X., Suresh, N. L., Rymer, W. Z. Tags: Rapid Reports Source Type: research

Proprioceptive illusion induced by tendon vibration on the upper limb in stroke patients
Conclusion TVR and usual movement illusion under tendon vibration are affected on the hemiplegic side after stroke. Any relationship or not on the observed deficiencies require confirmation with a larger sample.
Source: Annals of Physical and Rehabilitation Medicine - October 2, 2015 Category: Rehabilitation Source Type: research

Autonomic symptoms in hypertensive patients with post-acute minor ischemic stroke
Autonomic function is frequently altered in patients with ischemic stroke during acute and chronic stages. Cardiac arrhythmias and sudden death during acute stroke are related to autonomic function imbalance.[1–3] Non-invasive tests have suggested sympathetic hyperactivity and cardiovagal dysfunction in acute stroke [1,2,4–7] with diverse results when considering the influence of lateralization, site and sub-type of ischemic stroke [1–3,8]. Autonomic cardiovascular dysfunction is associated with stroke severity [8].
Source: Clinical Neurology and Neurosurgery - October 8, 2015 Category: Neurosurgery Authors: Juan Idiaquez, Hector Farias, Francisco Torres, Jorge Vega, David A. Low Source Type: research

Effects of repetitive transcranial magnetic stimulation on lower extremity spasticity and motor function in stroke patients.
CONCLUSION: Low-frequency rTMS over the LE motor area can improve clinical measures of muscle spasticity and motor function. More studies are needed to clarify the changes underlying this improvement in spasticity. Implications for Rehabilitation Spasticity is a common disorder and one of the causes of long-term disability after stroke. Physical therapy modalities, oral medications, focal intervention and surgical procedures have been used for spasticity reduction. Beneficial effect of the repetitive transcranial magnetic stimulation (rTMS) for post-stroke upper extremity spasticity reduction and motor function improvement...
Source: Disability and Rehabilitation - February 15, 2016 Category: Rehabilitation Authors: Rastgoo M, Naghdi S, Nakhostin Ansari N, Olyaei G, Jalaei S, Forogh B, Najari H Tags: Disabil Rehabil Source Type: research

Effect of myofeedback on the threshold of the stretch reflex response of post-stroke spastic patients.
Conclusion The myofeedback training provided a significant contribution to conventional treatment, allowing for a better improvement of the spastic condition. Implications for rehabilitation Biofeedback is an effective means of improving motor control of post-stroke spastic patients. The Tonic Stretch Reflex Threshold is a more sensitive quantitative measure to assess upper-limb post-stroke spasticity. Spastic patients who participate in myofeedback training along with physical therapy can improve faster then those who participate only in traditional physical therapy rehabilitation protocols. PMID: 26939989 [PubMed - ...
Source: Disability and Rehabilitation - March 4, 2016 Category: Rehabilitation Authors: Vieira D, Silva MB, Melo MC, Soares AB Tags: Disabil Rehabil Source Type: research