The Experts below are selected from a list of 54 Experts worldwide ranked by ideXlab platform
X U Weimin - One of the best experts on this subject based on the ideXlab platform.
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the motor nerve block effects of different low concentration ropivacaine using low epidural analgesia
Guizhon Medical Journal, 2001Co-Authors: X U WeiminAbstract:Objectiae [WT5”BZ]To investigate a suitable concentration of ropivacaine, by which only block pain sensation but not block motions during low epidural analgesia. [WT5”HZ]Methods [WT5”BZ]Sixty patients with epidural anesthesia at legs were select. When four hours after operation, patients were used with double blind method, and were injected 8-10ml of “analgesic" which were 0.1%,0.15%, 0.20%,0.25%,0.30%. ropivacaine and physiology saline at group A,B,C,D,E andF. To observe content before the injection and after 30min of the injection:①visual analogue scale(VAS);②Reflex activities (low Abdominal Reflex, cremasteric Reflex, kneejerk Reflex, Achilles tendon Reflex) and muscular tensions(straight leg raising,knee kicking and pedaling)ofblocked parts after epidural analgesia.[WT5”HZ]Result [WT5”BZ]The epidural anesthesia of 60 cases were satisfactory. After injection of pastoperation analgesia, appeared following changes:In respect of VAS,group A, group B, group C,group D,group E compared with group F,all P0 01 [WT5”HZ]Conclusion [WT5”BZ]0.15%ropivacaine is the suitable concentration, by which only take place sensory block without motor block.[WT5”HZ]
Hideki Yoshikawa - One of the best experts on this subject based on the ideXlab platform.
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the utility of superficial Abdominal Reflex in the initial diagnosis of scoliosis a retrospective review of clinical characteristics of scoliosis with syringomyelia
Scoliosis, 2010Co-Authors: Takahito Fujimori, Motoki Iwasaki, Yukitaka Nagamoto, Hironobu Sakaura, Kazuya Oshima, Hideki YoshikawaAbstract:Background With increasing use of magnetic resonance imaging (MRI), underlying syringomyelia is increasingly found in patients with presumed idiopathic scoliosis. To determine the indications for MRI in the differential diagnosis of scoliosis, several clinical characteristics of syringomyelia have been reported. Neurological signs, particularly abnormal superficial Abdominal Reflex (SAR), are important in establishing the initial diagnosis of scoliosis. However, the prevalence of abnormal SAR in patients with scoliosis and the sensitivity of this sign in predicting syringomyelia are not well known. We aimed to determine the diagnostic utility of SAR and other characteristics of syringomyelia in patients with scoliosis.
Jan Lehovsky - One of the best experts on this subject based on the ideXlab platform.
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Prevalence and clinical significance of superficial Abdominal Reflex abnormalities in idiopathic scoliosis
European Spine Journal, 2005Co-Authors: Asif Saifuddin, Stuart Tucker, Benjamin A. Taylor, M. Hilali Noordeen, Jan LehovskyAbstract:To determine prevalence and significance of abnormal superficial Abdominal Reflexes (SARs) in idiopathic scoliosis. Study of 73 patients with presumed idiopathic scoliosis referred for magnetic resonance imaging (MRI), either as a routine pre-operative assessment ( n =42) or because of abnormal symptoms or neurological signs ( n =31). All patients were examined prior to magnetic resonance imaging (MRI), and the presence of abnormal SARs was noted. All patients then underwent MRI of the whole spine from the foramen magnum to the sacrum. The presence of Chiari 1 malformation and syrinx was recorded. The study group consisted of 11 males and 62 females with a mean age at time of MRI of 18 years (range 5–51 years) and a mean Cobb angle of 48° (range 10–104°). Abnormality of the SARs was recorded in eight cases (prevalence 11%). An abnormal MRI study was recorded in nine cases (12.3%), all patients having a syrinx and four having in addition, a Chiari 1 malformation. Of the patients with abnormal SARs, only 2 (25%) had an abnormal MRI study; 1 had unilateral absence of the Reflexes whereas the other had complete absence of SARs. Of patients referred for MRI as a routine pre-operative assessment, 5 (11.6%) had an abnormal MRI study. In patients with idiopathic scoliosis, abnormality of the SARs was recorded in 11% of cases. Unilateral absence was present in one case only and was associated with the presence of syrinx. Other patterns of abnormality were not a useful indicator of underlying cord abnormality.
M H Mehta - One of the best experts on this subject based on the ideXlab platform.
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absent superficial Abdominal Reflexes in children with scoliosis an early indicator of syringomyelia
Journal of Bone and Joint Surgery-british Volume, 1995Co-Authors: H G Zadeh, S A Sakka, M P Powell, M H MehtaAbstract:We describe 12 children with idiopathic scoliosis who had a persistent absent superficial Abdominal Reflex (SAR) on routine neurological examination. MRI showed syringomyelia to be present in ten. The average age at detection of the scoliosis was 4.3 years and at diagnosis of syringomyelia 6.6 years. In all ten children the SAR was consistently absent on the same side as the convexity of the curve. In two it was the only abnormal neurological sign. An absent SAR in patients with scoliosis is an indication for investigation for underlying syringomyelia. In the children with syringomyelia, six had thoracic and four thoracolumbar curves. The clinical features differed in the two groups. Patients with thoracic curves were generally asymptomatic. Their neurological signs were subtle and none had any motor signs. By contrast, patients with thoracolumbar curves had symptoms and neurological signs. Abnormal gait was present in all four patients with thoracolumbar curves. In three this was due to considerable motor weakness. In eight children syringomyelia was associated with a Chiari-I malformation. In seven the syrinx was treated surgically by decompression of the foramen magnum.
Takahito Fujimori - One of the best experts on this subject based on the ideXlab platform.
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the utility of superficial Abdominal Reflex in the initial diagnosis of scoliosis a retrospective review of clinical characteristics of scoliosis with syringomyelia
Scoliosis, 2010Co-Authors: Takahito Fujimori, Motoki Iwasaki, Yukitaka Nagamoto, Hironobu Sakaura, Kazuya Oshima, Hideki YoshikawaAbstract:Background With increasing use of magnetic resonance imaging (MRI), underlying syringomyelia is increasingly found in patients with presumed idiopathic scoliosis. To determine the indications for MRI in the differential diagnosis of scoliosis, several clinical characteristics of syringomyelia have been reported. Neurological signs, particularly abnormal superficial Abdominal Reflex (SAR), are important in establishing the initial diagnosis of scoliosis. However, the prevalence of abnormal SAR in patients with scoliosis and the sensitivity of this sign in predicting syringomyelia are not well known. We aimed to determine the diagnostic utility of SAR and other characteristics of syringomyelia in patients with scoliosis.
