Publications by authors named "Nevin Gurgor"
Purpose: Patients with Guillain-Barré syndrome (GBS), especially severe cases that require treatment in intensive care units, often experience swallowing difficulties. However, the oropharyngeal function of patients with GBS not treated in intensive care units is not typically evaluated using neurophysiological techniques.
Methods: Electrophysiological techniques were used to determine dysphagia limit and sequential water swallowing values in an electromyography laboratory.
Objective: To investigate electrophysiological parameters of swallowing in all stages of Alzheimer's disease.
Methods: Forty Alzheimer's disease patients, 20 age-matched normal controls and 20 young normal controls were included. Dysphagia limit (DL) and sequential water swallowing (SWS) tests were performed.
Yawning and swallowing are fundamental physiological processes that are present from fetal stages throughout life and that involve sequential motor activities in the oropharyngo-larynx making it likely that they may share neuroanatomical pathways. We postulate that yawning and swallowing are controlled by a distributed network of brainstem regions including the central pattern generator of swallowing, and therefore spontaneous swallowing is frequently associated with spontaneous yawning. In this study, we sought to test this hypothesis by evaluating the elementary features of yawning in the facial, masseter and submental muscles, together with laryngeal movement sensor and respiratory recordings for spontaneous swallowing.
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- The study investigates subclinical dysphagia in patients with mild multiple sclerosis (MS) using electromyography (EMG), highlighting that swallowing issues in MS have been under-researched.
- Clinical dysphagia was observed in 12% of the patients, while EMG detected swallowing abnormalities in 33%, with variations across different stages of MS.
- The findings reveal that EMG is a valuable tool for identifying swallowing difficulties in MS patients, providing a quick and non-invasive method to assess swallowing function.
Article Synopsis
- In this study, researchers explored the relationship between intraoral trigeminal nerve activity and the EMG responses of lower facial muscles, particularly the orbicularis oris muscle, during swallowing events.
- They found that the orbicularis oculi muscle, typically not associated with swallowing, also showed synchronized activity with the swallowing process, especially during spontaneous swallowing rather than voluntary actions.
- The findings suggest that this muscle synchronization may be linked to neural pathways and could help explain certain movement disorders like craniofacial dystonias in humans.
Objective: The aim of this study is to investigate diagnostic value of electrical lumbar root stimulation (RS) at the laminar level in the early stage of Guillain-Barré syndrome (GBS).
Methods: Fifteen patients (30 sides) and nine controls (17 sides) were included in the study. Conventional nerve conduction studies, needle electromyography, F responses and electrical lumbar RS were obtained from both groups.
Objective: Lumbar spinal stenosis (LSS) is a chronic degenerative disease with pain in the back, buttocks and legs aggrevated by walking and relieved after rest without associated vascular disease of lower extremities observed in patients between 50 and 60 years. Several studies, using different methods indicated an association between slowing or blocking of root-nerve conduction and LSS. None of the previous research had applied the more conceivable methods such as recording the cauda equina potentials from the lumbar level or stimulating the spinal roots within the canal using either leg nerves or muscles.
View Article and Find Full Text PDFIntroduction: generalized tonic clonic (GTC) seizure activity because of central nerve system oxygen toxicity is a rare but recognized effect of HBOT (hyperbaric oxygen therapy). Almost all case reports and database analyses about the relationship between seizure activity and HBOT point out that GTC seizures and status epilepticus are more likely to occur as a result of the treatment and there are only few reports demonstrating partial seizures.
Case Report: an 87-year-old male patient was admitted to our clinic because of tonic-clonic contractions on his left arm.
Objective: Lateral spreading and synkinetic responses of blink reflex are a sign of ephaptic transmission in idiopathic hemifacial spasm (HFS). The aim of this study was to evaluate the effect of botulinum toxin A (Btx A) on ephaptic transmission in idiopathic HFS.
Methods: Thirty-three patients with idiopathic HFS were investigated.
Electrophysiologic identification and evaluation of stylohyoid and posterior digastricus muscle complex.
J Electromyogr Kinesiol
February 2006
Purpose: To identify the function of stylohyoid and posterior digastricus (STH-PD) muscle complex by the EMG techniques.
Methods: Unaffected sides of the faces of 30 patients with facial paralysis or hemifacial spasm were investigated. A concentric needle electrode was inserted to the STH-PD muscle complex and another concentric needle electrode was inserted to the orbicularis oris (OO) muscle.
Objectives: To demonstrate a clear-cut M response recorded from the severely affected thigh muscles to the stimulation of the upper limb nerves in a serial of patients with late poliomyelitis.
Methods: Fifteen patients with late poliomyelitis, 7 patients with spinal cord disorders and 11 control subjects were included. Evoked muscle responses were investigated in quadriceps femoris and/or thigh adductor muscles to the stimulation of the brachial plexus, median and ulnar nerves.