30 results on '"Peripheral lesion"'
Search Results
2. Thoracic trauma promotes alpha-Synuclein oligomerization in murine Parkinson's disease
- Author
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Wolfgang P. Ruf, Annette Palmer, Lena Dörfer, Diana Wiesner, Eva Buck, Veselin Grozdanov, Jan Kassubek, Leda Dimou, Albert C. Ludolph, Markus Huber-Lang, and Karin M. Danzer
- Subjects
Alpha synuclein ,Trauma ,Inflammation ,Parkinson's disease ,Peripheral lesion ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Background: Systemic and neuroinflammatory processes play key roles in neurodegenerative diseases such as Parkinson's disease (PD). Physical trauma which induces considerable systemic inflammatory responses, represents an evident environmental factor in aging. However, little is known about the impact of physical trauma, on the immuno-pathophysiology of PD. Especially blunt chest trauma which is associated with a high morbidity and mortality rate in the elderly population, can induce a strong pulmonary and systemic inflammatory reaction. Hence, we sought out to combine a well-established thoracic trauma mouse model with a well-established PD mouse model to characterize the influence of physical trauma to neurodegenerative processes in PD. Methods: To study the influence of peripheral trauma in a PD mouse model we performed a highly standardized blunt thorax trauma in a well-established PD mouse model and determined the subsequent local and systemic response. Results: We could show that blunt chest trauma leads to a systemic inflammatory response which is quantifiable with increased inflammatory markers in bronchoalveolar fluids (BALF) and plasma regardless of the presence of a PD phenotype. A difference of the local inflammatory response in the brain between the PD group and non-PD group could be detected, as well as an increase in the formation of oligomeric pathological alpha-Synuclein (asyn) suggesting an interplay between peripheral thoracic trauma and asyn pathology in PD. Conclusion: Taken together this study provides evidence that physical trauma is associated with increased asyn oligomerization in a PD mouse model underlining the relevance of PD pathogenesis under traumatic settings.
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- 2022
- Full Text
- View/download PDF
3. Role of Ultra‐widefield Imaging in the evaluation of Long‐term change of highly myopic fundus.
- Author
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Oh, Baek‐Lok, Park, Un Chul, Kim, Bo Hee, Lee, Eun Kyoung, Yoon, Chang Ki, Choe, Hye Rim, Yeon, Dong Yun, and Yu, Hyeong Gon
- Subjects
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DIABETIC retinopathy , *REGRESSION analysis , *MYOPIA - Abstract
Purpose: To evaluate the impact of posterior staphyloma identified using ultra‐widefield fundus imaging on the long‐term progression of myopic maculopathy in highly myopic patients. Methods: In this observational cohort study, highly myopic patients who were followed up for at least 5 years using ultra‐widefield fundus imaging were analysed for fundus abnormalities and the progression of myopic maculopathy based on the International Meta‐analysis of Pathologic Myopia classification. Results: This study included 390 eyes (210 patients) with the mean follow‐up period of 69.2 ± 7.5 months (range, 60–88). Posterior staphyloma was identified in 198 eyes (50.8%) in the baseline ultra‐widefield fundus images. The border of staphyloma was not identified within 50° view circle corresponding to conventional fundus photography in 42 eyes (21.2%) with staphyloma, most of that were wide macular type. Progression of myopic maculopathy during follow‐up was observed in 202 eyes (51.8%), and eyes with staphyloma were more likely to show progression compared to those without (142/198 [71.7%] versus 60/192 [31.3%]; p < 0.001). In multivariable regression analysis, the presence of posterior staphyloma was an independent risk factor for the progression of myopic maculopathy (p = 0.005). One or more peripheral retinal lesions were observed in 302 eyes (77.4%) and 321 eyes (82.3%) in the baseline and final ultra‐widefield fundus images, respectively. Conclusion: Posterior staphyloma was associated with the long‐term progression of myopic maculopathy. With a wider field of view, ultra‐widefield fundus imaging is useful for identifying the posterior staphyloma and monitoring the progression of myopic maculopathy in highly myopic patients. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
4. An electronystagmographic study in post head injury vertigo patients.
- Author
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John, Stanley and Dechamma, Shruthi
- Subjects
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HEAD injuries , *POSTCONCUSSION syndrome , *VERTIGO , *TRACE analysis , *YOUNG adults , *AGE groups - Abstract
Vertigo is a well-known sequelae in post head injury patients. Etiopathology is multifactorial. Vertigo is recognized in all types of head injury-mild-to-severe and is a part of the post-concussion syndrome. However, it may also present later due to degenerative process involving the vestibular system. The observations made by the analysis of the tracings of electronystagmography and by noting the corresponding code we can identify the site and side of the vestibular lesion. The present study intends to understand post head injury vertigo using electronystagmography. Objectives of the Study: To evaluate post head injury vertigo using electronystagmography, to determine the side and site of origin of vertigo, and to localize the level of lesion – peripheral, central, or combined. Methodology: Fifty patients with post head injury vertigo presenting to ENT OPD of Dr. B. R. Ambedkar Medical College and Hospital were included in the study after taking their consent. Observations and Results: Fifty patients with post head injury vertigo were subjected to electronystagmography. Young adults between the age group of 20 and 30 years were found to be the most common group involved, constituted 34% of the patients. Equal gender predisposition was observed. 1111 ENG CODE was found to be the most common type seen in 18% of the cases, followed by 0000 in 16% of patients, and 0222 seen in 16% of the patients. Bilateral peripheral lesion was the most common type seen in 36% of patients followed by unilateral peripheral lesion in 20% of patients, central lesion in 22%, and normal in 20%. Conclusion: Electronystagmography is an effective tool in the assessment of post head injury vertigo. It is useful in identifying the cause of vertigo and to localize the lesion for timely management and early vestibular rehabilitation of the patient providing better clinical outcome. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
5. Wide-field fluorescein and indocyanine green angiography findings in the eyes with Vogt-Koyanagi-Harada disease
- Author
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Ryo Kurobe, Yoshio Hirano, Naomi Niwa, Kazuhiko Sugitani, Tsutomu Yasukawa, Munenori Yoshida, and Yuichiro Ogura
- Subjects
Wide-field indocyanine green angiography ,Densitometry ,Binarization ,Vogt-Koyanagi-Harada disease ,Peripheral lesion ,Ophthalmology ,RE1-994 - Abstract
Abstract Background The purpose of this study is to report wide-field angiography findings before and after steroid therapy in a case with bilateral Vogt-Koyanagi-Harada (VKH) disease. Results A 44-year-old woman presented with bilateral blurred vision and metamorphopsia accompanied by symptoms of headache and tinnitus. The baseline best-corrected visual acuity was 20/20 in both eyes. Ophthalmic examination revealed a shallow anterior chamber and panuveitis accompanied by multiple serous retinal detachments in both eyes and ciliochoroidal detachments in the left eye. Wide-field fluorescein angiograms showed hyperfluorescene indicating pooling corresponding to multiple serous retinal detachments in the posterior lesion and vascular leakage in the peripheral retina and choroid, resolved after steroid tapering therapy. Interestingly, wide-field indocyanine angiograms revealed narrowing of choroidal vessels in the acute phase and its normalization with resolution of inflammation after the therapy. Conclusions Eyes with Vogt-Koyanagi-Harada disease had peripheral chorioretinal vascular leakage and choroidal vessel narrowing in the acute phase. Wide-field angiography is a useful tool to reveal peripheral chorioretinal findings and assess diameters and density of choroidal vessels.
- Published
- 2017
- Full Text
- View/download PDF
6. Reduced functional connectivity within the primary motor cortex of patients with brachial plexus injury
- Author
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D. Fraiman, M.F. Miranda, F. Erthal, P.F. Buur, M. Elschot, L. Souza, S.A.R.B. Rombouts, C.A. Schimmelpenninck, D.G. Norris, M.J.A. Malessy, A. Galves, and C.D. Vargas
- Subjects
Resting state ,Gray matter ,Peripheral lesion ,Functional connectivity ,Horizontal connections ,Correlation decay ,Computer applications to medicine. Medical informatics ,R858-859.7 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
This study aims at the effects of traumatic brachial plexus lesion with root avulsions (BPA) upon the organization of the primary motor cortex (M1). Nine right-handed patients with a right BPA in whom an intercostal to musculocutaneous (ICN-MC) nerve transfer was performed had post-operative resting state fMRI scanning. The analysis of empirical functional correlations between neighboring voxels revealed faster correlation decay as a function of distance in the M1 region corresponding to the arm in BPA patients as compared to the control group. No differences between the two groups were found in the face area. We also investigated whether such larger decay in patients could be attributed to a gray matter diminution in M1. Structural imaging analysis showed no difference in gray matter density between groups. Our findings suggest that the faster decay in neighboring functional correlations without significant gray matter diminution in BPA patients could be related to a reduced activity in intrinsic horizontal connections in M1 responsible for upper limb motor synergies.
- Published
- 2016
- Full Text
- View/download PDF
7. Electromagnetic Navigation
- Author
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El-Sameed, Yaser Abu, Küpeli, Elif, Mehta, Atul C., Díaz-Jimenez, Jose Pablo, editor, and Rodriguez, Alicia N., editor
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- 2013
- Full Text
- View/download PDF
8. EBUS Guidance for Peripheral Biopsies
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Eberhardt, Ralf, Ernst, Armin, editor, and Herth, Felix JF, editor
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- 2013
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9. PDT-Lung
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Allison, Ron R. and Jeremic, Branislav, editor
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- 2011
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10. PREGABALIN TREATMENT OF PERIPHERAL NERVE DAMAGE IN A MURINE DIABETIC PERIPHERAL NEUROPATHY MODEL.
- Author
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Li, J., Chen, X., Lu, X., Zhang, C., Shi, Q., and Feng, L.
- Subjects
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PREGABALIN , *PERIPHERAL nervous system , *PERIPHERAL neuropathy , *STREPTOZOTOCIN , *ORGANIC cation transporters , *GENE expression - Abstract
Context. Peripheral nerve lesions are a major complication of diabetes mellitus, the main clinical manifestations of which are numbness and pain involving the limbs. Objective. To determine the correlation between pregabalin treatment and diabetic peripheral neuropathic pain. Design. An experimental animal study in BALB/c mice. Subjects and Methods. Diabetes models are established by injecting streptozotocin (STZ) into the abdominal cavities of mice. The correlation between the treatment effect, time, and dosage of pregabalin was determined. The effect of a type 1 organic cation transporter (Octn1) in the absorption of pregabalin was evaluated. Results. Pregabalin reduced tactile allodynia in diabetic mice. The best analgesic effect occurred when intestinal absorption was increased. Octn1 mediated pregabalin entry into intestinal epithelial cells, which influenced the absorption of pregabalin with a timedependent fluctuation in the small intestine. Peripheral nerve damage caused by diabetes was dependent on time and dose of pregabalin, which was related to the regular expression of Octn1 in small intestinal epithelium. Conclusions. Peripheral nerve damage caused by diabetes was dependent on time and dosage of pregabalin, which was related to the regular expression of Octn1 in small intestinal epithelium. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
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11. The Role of Bronchoscopy and the Diagnosis and Staging of Lung Cancer
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Shah, Pallav L., Syrigos, Konstantinos N., editor, Nutting, Christopher M., editor, and Roussos, Charis, editor
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- 2006
- Full Text
- View/download PDF
12. Wide-field fluorescein and indocyanine green angiography findings in the eyes with Vogt-Koyanagi-Harada disease.
- Author
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Kurobe, Ryo, Hirano, Yoshio, Niwa, Naomi, Sugitani, Kazuhiko, Yasukawa, Tsutomu, Yoshida, Munenori, and Ogura, Yuichiro
- Subjects
- *
ANGIOGRAPHY , *FLUORESCEIN , *INDOCYANINE green , *UVEOMENINGOENCEPHALITIC syndrome , *UVEAL diseases , *DENSITOMETRY - Abstract
Background: The purpose of this study is to report wide-field angiography findings before and after steroid therapy in a case with bilateral Vogt-Koyanagi-Harada (VKH) disease. Results: A 44-year-old woman presented with bilateral blurred vision and metamorphopsia accompanied by symptoms of headache and tinnitus. The baseline best-corrected visual acuity was 20/20 in both eyes. Ophthalmic examination revealed a shallow anterior chamber and panuveitis accompanied by multiple serous retinal detachments in both eyes and ciliochoroidal detachments in the left eye. Wide-field fluorescein angiograms showed hyperfluorescene indicating pooling corresponding to multiple serous retinal detachments in the posterior lesion and vascular leakage in the peripheral retina and choroid, resolved after steroid tapering therapy. Interestingly, wide-field indocyanine angiograms revealed narrowing of choroidal vessels in the acute phase and its normalization with resolution of inflammation after the therapy. Conclusions: Eyes with Vogt-Koyanagi-Harada disease had peripheral chorioretinal vascular leakage and choroidal vessel narrowing in the acute phase. Wide-field angiography is a useful tool to reveal peripheral chorioretinal findings and assess diameters and density of choroidal vessels. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
13. Peripheral dentinogenic ghost cell tumor
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Sushant S Kamat, Gajendra S Diwakar, Mujib BR Ahmed, and Prashant R Shetty
- Subjects
Dentinogenic ghost cell tumors ,peripheral lesion ,pain ,saucerization ,Medicine - Abstract
Dentinogenic ghost cell tumors (DGCT) are uncommon lesions mainly with rare peripheral types. This report presents a case of peripheral DGCT on the left side of the mandibular alveolar ridge of a heavy smoker, a 68-year-old man, with main presenting feature as a mild pain. Submandibular lymphadenopathy and radiological "saucerization" were evident. Differential diagnosis included fibroma, neurofibroma, peripheral ameloblastoma, peripheral odontogenic fibroma, and peripheral giant cell granuloma. Histologically, ameloblastoma-like epithelial elements were seen in association with grouped ghost cells. Proliferating polyhedral cells and stellate reticulum-like cells with various densities were spread over a wide range of the field. The lesion was curetted and after 2 years of follow up, it did not recur.
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- 2013
- Full Text
- View/download PDF
14. Prospective Analysis of a Novel Endobronchial Augmented Fluoroscopic Navigation System for Diagnosis of Peripheral Pulmonary Lesions
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Michael A. Pritchett
- Subjects
Pulmonary and Respiratory Medicine ,Adult ,bronchoscopy ,peripheral lesion ,Lung Neoplasms ,Biopsy ,Original Investigations ,guided bronchoscopy ,Lesion ,03 medical and health sciences ,Prospective analysis ,0302 clinical medicine ,Bronchoscopy ,medicine ,Fluoroscopy ,Humans ,030212 general & internal medicine ,Lung ,medicine.diagnostic_test ,business.industry ,Peripheral ,Catheter ,lung cancer ,030228 respiratory system ,Fluoroscopic navigation ,lung lesion ,medicine.symptom ,business ,Nuclear medicine - Abstract
Background Navigational bronchoscopy has improved upon traditional bronchoscopy to identify suspicious pulmonary lesions, but wide variability exists in the diagnostic yield of various modalities. The aim of this study was to measure localization accuracy and diagnostic yield of a novel endobronchial augmented fluoroscopic navigation system (first-generation LungVision system) for peripheral pulmonary lesions (PPLs). Methods This prospective single-center study included adults undergoing guided bronchoscopy to evaluate PPLs. Preprocedure computed tomography (CT) images were obtained, and planning software calculated a pathway to the lesion. A flexible bronchoscope was used to navigate along the pathway overlaid on the intraprocedural fluoroscopic image. When real-time display indicated the catheter tip had reached the lesion, cone-beam computed tomography (CBCT) was used to measure the actual location of the tip. Biopsy and rapid on-site cytopathologic evaluation were performed. Results Fifty-one patients were included in the analysis. The median lesion diameter was 18.0 mm (range: 7.0 to 48.0 mm). Localization success was 96.1%. The average distance between lesion location as shown by LungVision augmented fluoroscopy and actual location measured by CBCT was 5.9 mm (range: 2.1 to 10.0 mm). Diagnostic yield at the index procedure was 78.4%. Diagnostic accuracy assessed at 12 months follow-up was 88.2%. Average CT-to-body divergence was 14.5 mm (range: 2.6 to 33.0 mm) from preprocedure CT to intraprocedural CBCT images. Conclusion Augmented fluoroscopy for navigation and biopsy of PPLs with the LungVision system showed a high localization success rate and corresponding high diagnostic yield. Navigation and biopsy with real-time visualization can improve diagnostic yield for PPLs.
- Published
- 2020
15. Peripheral Calcifying Cystic Odontogenic Tumour - A Rare Case Report
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Vrinda Sunil Kolte, Ramakrishna Shenoi, Vandana Gadve, Anand Rajderkar, and Alka Dive
- Subjects
ghost cells ,mallory stain ,peripheral lesion ,van gieson stain ,Medicine - Abstract
Odontogenic lesions are derived from remnants of the components of the developing tooth germ. The calcifying cystic odontogenic tumour (CCOT) is a benign cystic neoplasm of odontogenic origin that is characterized by ameloblastoma-like epithelial cells and ghost cells. Most peripheral CCOTs are located in the anterior gingiva of the mandible or maxilla. This is a rare case report of CCOT. The rare feature in our case was its peripheral nature of existence and its location in the left buccal vestibule and retromolar region. Based on the radiological, cytological and histopathological findings the lesion was surgically excised.
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- 2015
- Full Text
- View/download PDF
16. Electronystagmography a Very Useful Diagnostic Tool in Cases of Vertigo.
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Gupta, Sanjay and Mundra, Raj
- Subjects
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VERTIGO diagnosis , *ELECTRONYSTAGMOGRAPHY , *OTOLARYNGOLOGY , *VESTIBULO-ocular reflex , *ETIOLOGY of diseases - Abstract
A significant number of patients seen in otorhinolaryngology have symptoms of vestibular dysfunction. Examination of vestibulo-ocular reflex has been and still is the principal method of evaluating vestibular functions. Electronystagmography (ENG) has been the gold standard to test the vestibular functions. The present study aims to evaluate the utility of ENG in diagnosing the etiology of vertigo. Total of 50 patients of either sex presenting with vertigo underwent ENG after a detailed history according to the proforma of questionnaire and routine ENT examination attending ENT OPD. In selected cases CT/MRI scan and other relevant investigations were done. Nystagmorite 2 + 1 channel machine was used to study the spontaneous nystagmus and bithermal caloric tests, parameter used for evaluation of ENG being central culmination frequency. The results were transferred on Claussan's Butterfly chart. In our study Peripheral lesion was observed in 29 cases, 19 cases had central lesion while 2 cases were mixed lesion. The data obtained was compared with those reported in other series. It was concluded that, supported by detailed history and neuro-otological examination ENG was found to be an essential tool for the diagnosis of vertigo whether central or peripheral origin along with identification of etiology of vertigo. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
17. Thoracic trauma promotes alpha-Synuclein oligomerization in murine Parkinson's disease.
- Author
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Ruf, Wolfgang P., Palmer, Annette, Dörfer, Lena, Wiesner, Diana, Buck, Eva, Grozdanov, Veselin, Kassubek, Jan, Dimou, Leda, Ludolph, Albert C., Huber-Lang, Markus, and Danzer, Karin M.
- Subjects
- *
PARKINSON'S disease , *BLUNT trauma , *ALPHA-synuclein , *OLIGOMERIZATION , *WOUNDS & injuries , *OLDER people - Abstract
Systemic and neuroinflammatory processes play key roles in neurodegenerative diseases such as Parkinson's disease (PD). Physical trauma which induces considerable systemic inflammatory responses, represents an evident environmental factor in aging. However, little is known about the impact of physical trauma, on the immuno-pathophysiology of PD. Especially blunt chest trauma which is associated with a high morbidity and mortality rate in the elderly population, can induce a strong pulmonary and systemic inflammatory reaction. Hence, we sought out to combine a well-established thoracic trauma mouse model with a well-established PD mouse model to characterize the influence of physical trauma to neurodegenerative processes in PD. To study the influence of peripheral trauma in a PD mouse model we performed a highly standardized blunt thorax trauma in a well-established PD mouse model and determined the subsequent local and systemic response. We could show that blunt chest trauma leads to a systemic inflammatory response which is quantifiable with increased inflammatory markers in bronchoalveolar fluids (BALF) and plasma regardless of the presence of a PD phenotype. A difference of the local inflammatory response in the brain between the PD group and non-PD group could be detected, as well as an increase in the formation of oligomeric pathological alpha-Synuclein (asyn) suggesting an interplay between peripheral thoracic trauma and asyn pathology in PD. Taken together this study provides evidence that physical trauma is associated with increased asyn oligomerization in a PD mouse model underlining the relevance of PD pathogenesis under traumatic settings. • Trauma leads to a systemic inflammatory response in PD and non-PD mice • Trauma promotes alpha synuclein oligomerization • Physical trauma might interact with neurodegenerative processes in PD [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
18. The IBB Forelimb Scale as a tool to assess functional recovery after peripheral nerve injury in mice.
- Author
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Speck, Ana Elisa, Ilha, Jocemar, do Espírito Santo, Caroline Cunha, Aguiar, Aderbal Silva, dos Santos, Adair Roberto Soares, and Swarowsky, Alessandra
- Subjects
- *
FORELIMB , *FUNCTIONAL analysis , *PERIPHERAL nerve injuries , *LABORATORY mice , *MEDICAL rehabilitation , *RANGE of motion of joints - Abstract
Highlights: [•] IBB is a tool that assesses and categorizes specific functional impairments in forelimb. [•] This scale shows how the animal performs the movement. [•] Can be used to evaluate forelimb function after peripheral nerve injury in mice. [•] These findings might be important for testing rehabilitation programs. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
19. Real-Time Electromagnetic Navigation Bronchoscopy to Peripheral Lung Lesions Using Overlaid CT Images: The First Human Study.
- Author
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Schwarz, Yehuda, Greif, Joel, Becker, Heinrich D., Ernst, Armin, and Mehta, Atul
- Subjects
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LUNG diseases , *BRONCHOSCOPY , *BIOPSY , *HEALTH facilities , *MEDICAL centers , *CLINICAL pathology - Abstract
The article presents a study whose objective is to characterize the accuracy, feasibility and safety of the superDimension/ Bronchus system in navigating to earlier unreachable peripheral lung lesions and obtaining biopsy specimens. For this study, fifteen subjects were enrolled into prospective, open-label, single-group, controlled clinical study from June 2003 to May 2004. The study was approved by the Tel Aviv Sonrasky Medical Center Flelsinki Committee, and consent was obtained from all the subjects prior to bronchoscopy.
- Published
- 2006
- Full Text
- View/download PDF
20. Wide-field fluorescein and indocyanine green angiography findings in the eyes with Vogt-Koyanagi-Harada disease
- Author
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Kazuhiko Sugitani, Yuichiro Ogura, Tsutomu Yasukawa, Ryo Kurobe, Naomi Niwa, Munenori Yoshida, and Yoshio Hirano
- Subjects
Vogt–Koyanagi–Harada disease ,medicine.medical_specialty ,Visual acuity ,genetic structures ,Wide-field indocyanine green angiography ,Binarization ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Blurred vision ,lcsh:Ophthalmology ,Ophthalmology ,medicine ,Metamorphopsia ,medicine.diagnostic_test ,business.industry ,Brief Report ,Panuveitis ,Retinal ,medicine.disease ,eye diseases ,Infectious Diseases ,medicine.anatomical_structure ,chemistry ,lcsh:RE1-994 ,Angiography ,030221 ophthalmology & optometry ,Peripheral lesion ,Choroid ,sense organs ,medicine.symptom ,business ,030217 neurology & neurosurgery ,Densitometry ,Vogt-Koyanagi-Harada disease - Abstract
Background The purpose of this study is to report wide-field angiography findings before and after steroid therapy in a case with bilateral Vogt-Koyanagi-Harada (VKH) disease. Results A 44-year-old woman presented with bilateral blurred vision and metamorphopsia accompanied by symptoms of headache and tinnitus. The baseline best-corrected visual acuity was 20/20 in both eyes. Ophthalmic examination revealed a shallow anterior chamber and panuveitis accompanied by multiple serous retinal detachments in both eyes and ciliochoroidal detachments in the left eye. Wide-field fluorescein angiograms showed hyperfluorescene indicating pooling corresponding to multiple serous retinal detachments in the posterior lesion and vascular leakage in the peripheral retina and choroid, resolved after steroid tapering therapy. Interestingly, wide-field indocyanine angiograms revealed narrowing of choroidal vessels in the acute phase and its normalization with resolution of inflammation after the therapy. Conclusions Eyes with Vogt-Koyanagi-Harada disease had peripheral chorioretinal vascular leakage and choroidal vessel narrowing in the acute phase. Wide-field angiography is a useful tool to reveal peripheral chorioretinal findings and assess diameters and density of choroidal vessels.
- Published
- 2017
21. Reduced functional connectivity within the primary motor cortex of patients with brachial plexus injury
- Author
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Daniel Fraiman, P. F. Buur, M. Elschot, C. A. Schimmelpenninck, Michelle Ferreira Miranda, Antonio Galves, David G. Norris, F. Erthal, Martijn J. A. Malessy, Lidiane Souza, Claudia D. Vargas, Serge A.R.B. Rombouts, Magnetic Detection and Imaging, Faculty of Science and Technology, and Spinoza Centre for Neuroimaging
- Subjects
Male ,0301 basic medicine ,Ciencias Físicas ,Medizin ,Functional connectivy ,computer.software_genre ,Brain mapping ,Horizontal connections ,lcsh:RC346-429 ,Correlation decay ,purl.org/becyt/ford/1 [https] ,Functional connectivity ,0302 clinical medicine ,Voxel ,Brachial Plexus Neuropathies ,Resting state ,Diminution ,Brain Mapping ,METIS-318749 ,medicine.diagnostic_test ,Motor Cortex ,Regular Article ,Anatomy ,Magnetic Resonance Imaging ,medicine.anatomical_structure ,Neurology ,Brachial plexus injury ,lcsh:R858-859.7 ,Female ,Primary motor cortex ,Psychology ,CIENCIAS NATURALES Y EXACTAS ,Motor cortex ,Adult ,Cognitive Neuroscience ,Otras Ciencias Físicas ,lcsh:Computer applications to medicine. Medical informatics ,150 000 MR Techniques in Brain Function ,03 medical and health sciences ,IR-102036 ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Gray matter ,lcsh:Neurology. Diseases of the nervous system ,Resting state fMRI ,Magnetic resonance imaging ,purl.org/becyt/ford/1.3 [https] ,medicine.disease ,030104 developmental biology ,Correlation function ,Peripheral lesion ,Neurology (clinical) ,ESTATÍSTICA E PROBABILIDADE ,computer ,Neuroscience ,030217 neurology & neurosurgery - Abstract
This study aims at the effects of traumatic brachial plexus lesion with root avulsions (BPA) upon the organization of the primary motor cortex (M1). Nine right-handed patients with a right BPA in whom an intercostal to musculocutaneous (ICN-MC) nerve transfer was performed had post-operative resting state fMRI scanning. The analysis of empirical functional correlations between neighboring voxels revealed faster correlation decay as a function of distance in the M1 region corresponding to the arm in BPA patients as compared to the control group. No differences between the two groups were found in the face area. We also investigated whether such larger decay in patients could be attributed to a gray matter diminution in M1. Structural imaging analysis showed no difference in gray matter density between groups. Our findings suggest that the faster decay in neighboring functional correlations without significant gray matter diminution in BPA patients could be related to a reduced activity in intrinsic horizontal connections in M1 responsible for upper limb motor synergies., Highlights • Patients with brachial plexus avulsion were evaluated employing resting state fMRI. • Faster correlation decay between voxels was found in BPA compared to controls in M1. • No difference between groups was found in M1 face area. • No gray matter diminution was observed in M1 in BPA compared to controls. • This decay could result from reduced activity in intrinsic horizontal connections.
- Published
- 2016
22. Behavioral Correlates of Plasticity in Substantia Nigra Efferents
- Author
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Huston, Joseph P., Morgan, Sarah, Steiner, Heinz, Will, B. E., editor, Schmitt, P., editor, and Dalrymple-Alford, J. C., editor
- Published
- 1985
- Full Text
- View/download PDF
23. Peripheral Calcifying Cystic Odontogenic Tumour - A Rare Case Report
- Author
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Anand Rajderkar, Vrinda Kolte, Ramakrishna Shenoi, Vandana Gadve, and Alka Dive
- Subjects
Pathology ,medicine.medical_specialty ,peripheral lesion ,Clinical Biochemistry ,lcsh:Medicine ,Lesion ,stomatognathic system ,medicine ,Van Gieson's stain ,ghost cells ,business.industry ,lcsh:R ,mallory stain ,Mandible ,Ghost cell ,General Medicine ,Anatomy ,van gieson stain ,Dentistry Section ,Odontogenic tumour ,Cystic Neoplasm ,Peripheral ,stomatognathic diseases ,Maxilla ,medicine.symptom ,business - Abstract
Odontogenic lesions are derived from remnants of the components of the developing tooth germ. The calcifying cystic odontogenic tumour (CCOT) is a benign cystic neoplasm of odontogenic origin that is characterized by ameloblastoma-like epithelial cells and ghost cells. Most peripheral CCOTs are located in the anterior gingiva of the mandible or maxilla. This is a rare case report of CCOT. The rare feature in our case was its peripheral nature of existence and its location in the left buccal vestibule and retromolar region. Based on the radiological, cytological and histopathological findings the lesion was surgically excised.
- Published
- 2015
24. Bronchography in Pulmonary Diseases
- Author
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Watanabe, K., Ikeda, S., Nakhosteen, John A., editor, and Maassen, Werner, editor
- Published
- 1981
- Full Text
- View/download PDF
25. Physical therapy of peripheral lesions in childhood
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Hubáčková, Daniela, Ocmanová, Renata, and Demuthová, Zorka
- Subjects
fyzikální terapie ,rehabilitace ,physical therapy ,periferní paréza ,periferní léze ,peripheral lesion ,rehabilitation ,peripheral paresis - Abstract
The work describes the types of peripheral nerve lesions, their causes and therapy. It is concerned mainly with physical therapy but other means of rehabilitation and surgical therapy are mentioned too. In terms of physical therapy it describes electrotherapy, mechanotherapy, thermotherapy and hydrotherapy, phototherapy and balneotherapy. Separately it describes the therapy of Bell's palsy and postpartum paresis of brachial plexus. The mentioned polyneuropathies are polyradiculoneuritis and hereditary polyneuropathy. At the end it describes a casuistry of a patient with ulnar nerve paresis. Powered by TCPDF (www.tcpdf.org)
- Published
- 2007
26. Peripheral dentinogenic ghost cell tumor
- Author
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Gajendra S Diwakar, Prashant R Shetty, Mujib Br Ahmed, and Sushant S Kamat
- Subjects
Pathology ,medicine.medical_specialty ,peripheral lesion ,business.industry ,lcsh:R ,lcsh:Medicine ,Peripheral odontogenic fibroma ,Ghost cell ,General Medicine ,Dentinogenic ghost cell tumors ,medicine.disease ,Peripheral ,Lesion ,stomatognathic diseases ,Peripheral giant-cell granuloma ,saucerization ,medicine ,Neurofibroma ,pain ,Fibroma ,medicine.symptom ,Differential diagnosis ,business - Abstract
Dentinogenic ghost cell tumors (DGCT) are uncommon lesions mainly with rare peripheral types. This report presents a case of peripheral DGCT on the left side of the mandibular alveolar ridge of a heavy smoker, a 68-year-old man, with main presenting feature as a mild pain. Submandibular lymphadenopathy and radiological "saucerization" were evident. Differential diagnosis included fibroma, neurofibroma, peripheral ameloblastoma, peripheral odontogenic fibroma, and peripheral giant cell granuloma. Histologically, ameloblastoma-like epithelial elements were seen in association with grouped ghost cells. Proliferating polyhedral cells and stellate reticulum-like cells with various densities were spread over a wide range of the field. The lesion was curetted and after 2 years of follow up, it did not recur.
- Published
- 2013
27. Clinical Outcomes and Prognostic Factors of High-Dose Proton Beam Therapy for Peripheral Stage I Non-Small-Cell Lung Cancer.
- Author
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Hatayama Y, Nakamura T, Suzuki M, Azami Y, Ono T, Yabuuchi T, Hayashi Y, Kimura K, Hirose K, Wada H, Hareyama M, Kikuchi Y, and Takai Y
- Subjects
- Aged, Aged, 80 and over, Carcinoma, Non-Small-Cell Lung pathology, Disease-Free Survival, Female, Follow-Up Studies, Humans, Kaplan-Meier Estimate, Lung Neoplasms pathology, Male, Middle Aged, Neoplasm Staging, Prognosis, Proton Therapy adverse effects, Radiotherapy Dosage, Retrospective Studies, Survival Rate, Carcinoma, Non-Small-Cell Lung radiotherapy, Lung Neoplasms radiotherapy, Proton Therapy methods, Radiation Pneumonitis epidemiology
- Abstract
Background: The efficacy, toxicity, and prognostic factors of high-dose proton beam therapy (PBT) for peripheral stage I non-small-cell lung cancer were assessed in this retrospective study., Materials and Methods: Fifty patients with peripheral stage I non-small-cell lung cancer, two of whom had heterochronic multiple lung cancers, underwent high-dose PBT between January 2009 and September 2014. The relative biological effectiveness of the proton beam was defined as 1.1. The beam energy and spread-out Bragg peak were fine-tuned for the 90% isodose volume of the prescribed dosage to encompass the planning target volume. The cumulative survival curves were calculated using the Kaplan-Meier method. Treatment toxicities were evaluated using version 4 of the Common Terminology Criteria for Adverse Events, version 4., Results: The study included 35 males and 15 females with a median age of 72.5 years. The median follow-up period was 22.8 months. The clinical stage was IA in 44 (85%) and IB in eight (15%) tumors. The total dose of PBT was 66 GyE in 10 fractions in all tumors. Three-year overall survival rate among all patients was 87.9% (95% confidence interval [CI], 94.8%-73.2%). Forty-five patients were alive, and 5 were dead. Three-year local control and progression-free survival rates were 95.7% (95% CI, 98.9%-83.8%) and 76.3% (95% CI, 86.9%-59.3%), respectively. Only one patient experienced Grade 2 pneumonitis., Conclusion: High-dose PBT may be an effective and safe treatment option for patients with stage I non-small-cell lung cancer., (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Published
- 2016
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28. Reduced functional connectivity within the primary motor cortex of patients with brachial plexus injury.
- Author
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Fraiman D, Miranda MF, Erthal F, Buur PF, Elschot M, Souza L, Rombouts SA, Schimmelpenninck CA, Norris DG, Malessy MJ, Galves A, and Vargas CD
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- Adult, Brain Mapping, Female, Humans, Magnetic Resonance Imaging, Male, Brachial Plexus Neuropathies physiopathology, Motor Cortex physiopathology
- Abstract
This study aims at the effects of traumatic brachial plexus lesion with root avulsions (BPA) upon the organization of the primary motor cortex (M1). Nine right-handed patients with a right BPA in whom an intercostal to musculocutaneous (ICN-MC) nerve transfer was performed had post-operative resting state fMRI scanning. The analysis of empirical functional correlations between neighboring voxels revealed faster correlation decay as a function of distance in the M1 region corresponding to the arm in BPA patients as compared to the control group. No differences between the two groups were found in the face area. We also investigated whether such larger decay in patients could be attributed to a gray matter diminution in M1. Structural imaging analysis showed no difference in gray matter density between groups. Our findings suggest that the faster decay in neighboring functional correlations without significant gray matter diminution in BPA patients could be related to a reduced activity in intrinsic horizontal connections in M1 responsible for upper limb motor synergies.
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- 2016
- Full Text
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29. Peripheral Calcifying Cystic Odontogenic Tumour - A Rare Case Report.
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Kolte VS, Shenoi R, Gadve V, Rajderkar A, and Dive A
- Abstract
Odontogenic lesions are derived from remnants of the components of the developing tooth germ. The calcifying cystic odontogenic tumour (CCOT) is a benign cystic neoplasm of odontogenic origin that is characterized by ameloblastoma-like epithelial cells and ghost cells. Most peripheral CCOTs are located in the anterior gingiva of the mandible or maxilla. This is a rare case report of CCOT. The rare feature in our case was its peripheral nature of existence and its location in the left buccal vestibule and retromolar region. Based on the radiological, cytological and histopathological findings the lesion was surgically excised.
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- 2015
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30. [Kinesitherapy in patients with the peripheral vestibular system disorders].
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Szczepanik M, Walak J, Woszczak M, and Józefowicz-Korczyńska M
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- Adult, Exercise Therapy, Female, Humans, Labyrinth Diseases complications, Male, Middle Aged, Treatment Outcome, Vertigo etiology, Vestibular Diseases complications, Kinesiology, Applied methods, Labyrinth Diseases rehabilitation, Postural Balance, Vertigo rehabilitation, Vestibular Diseases rehabilitation
- Abstract
Introduction: Kinesitherapy is widely accepted management in patients with vertigo and imbalance, but there has been inadequate evidence that one form of therapy is superior to another., The Aim: of the study was to compare effectiveness of two kinesitherapy protocols in patients with the peripheral vestibular system disorders., Material and Methods: Fifty patients (mean age 46.0±13.1 year) with vertigo and balance instability lasting over 3 months with unilateral vestibular disorder, confirmed in Videnystagmography, were included in the study. Thirty patients underwent supervised and 20 patients home-based exercise programs. All of them were assessed three times at the baseline, after 4 weeks and 3 months, on vertigo intensity and frequency with the Vertigo Syndrome Scale (VSS), Vertigo Visual Analog Scale (VAS) and clinical unsteadiness with tests (Romberg, Amended Motor Club Assesment (AMCA), Eurofit test - standing on one leg., Results: In both groups the clinical tasks and the intensity of vertigo in VAS significantly decreased. The mean value of VSS (part physical and emotional)score significantly decreased only in supervised group at the end of 4 weeks and 3 months (p=ns). Recovery was more dynamic in supervised group than home-based exercises group, in AMCA test (3.9 vs. 1.3 s, p<0.05) in Eurofit tests eye open (14.1 vs. 0.9 s, p<0.05) and eye closed (3.5 vs. 1 s, p<0.05)., Conclusions: In patients with unilateral peripheral vestibular dysfunction supervised and home-based group kinesitherapy is an effective treatment method. In supervised group patients recovery has been faster., (Copyright © 2013 Polish Otorhinolaryngology - Head and Neck Surgery Society. Published by Elsevier Urban & Partner Sp. z.o.o. All rights reserved.)
- Published
- 2013
- Full Text
- View/download PDF
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