Journal of Yeungnam Medical Science

Jung Sang Hah

24 Articles

Relationship between Clinical Grading of Carpal Tunnel Syndrome and Electrophysiological Parameter: Hyun Chul Do, Jun Lee, Se Jin Lee, Mee Young Park, Jung Sang Hah; Yeungnam Univ J Med. 2007;24(2 Suppl):S407-415. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S407

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Abstract PDF: Background
：To investigate the relationship between clinical grading and electrophysiological parameter in carpal tunnel syndrome. Materials and Methods：This studies examined 75 outpatients (100 hands) who were diagnosed as carpal tunnel syndrome at neurologic clinic from March to July in 2006. They were divided into three groups by clinical grading and then each groups were compared with sensory nerve conduction velocity (SNCV) and sensory compound nerve action potential (CNAP) amplitude of I-W, F-W, and P-W segments, motor terminal latency (TL), motor compound muscle action potential (CMAP) amplitude of distal segment, and disto-proximal ratio on the third finger.
Results
：The first group(mild) was 46 (51 hands) patients, second group(moderate) was 29 (35 hands) patients, and the third group (severe) was 14(14 hands) patients. The mean ages were 55.9, 57.4 and 57.0 years in each group, and there were no statistical differences in age and sex between 3 groups. SNCV of I-W, F-W and P-W segments and motor TL were different significantly between 3 groups, but disto-proximal ratio on the third finger was not different significantly(P<0.05). Motor TL was correlated with clinical grading. And also sensory CNAP amplitude of I-W, F-W, and P-W segments, and motor CMAP amplitude of distal segment were different significantly between 3 groups. Especially, sensory CNAP amplitude of P-W segment and motor TL were correlated with higher clinical grading groups(2, 3 groups)(p<0.05).
Conclusion
：SNCV of F-W and P-W segments, motor TL, motor CMAP amplitude of distal segment and sensory CNAP amplitude of each segments were correlated with the clinical grading of carpal tunnel syndrome.

A Case of Systemic Lupus Erythematosus Presenting with Amaurosis Fugax without Antiphospholipid Antibodies Syndrome.: Jung Hyun Kim, Jung Sang Hah, Mee Young Park, Se Jin Lee, Jun Lee; Yeungnam Univ J Med. 2006;23(1):113-117. Published online June 30, 2006; DOI: https://doi.org/10.12701/yujm.2006.23.1.113

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Abstract PDF: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that may affect many organ systems including the nervous system. The immune response in patients with SLE can cause inflammation and other damage that can cause significant injury to the arteries and tissues. A 48-year-old woman was admitted to the hospital because of transient monocular blindness. Magnetic resonance imaging and conventional angiography showed severe stenosis of the distal intracranial internal carotid artery. The patient was diagnosed as having SLE but the antiphospholipid antibodies were negative. Amaurosis fugax has not been previously reported as an initial manifestation of SLE in Korea. We report a patient with a retinal transient ischemic attack as the first manifestation of SLE.

Clinical and Electrophysiological Study on Guillain-Barre Syndrome.: Sung Hwan Yun, Jung Sang Hah, Sung Gyun Joo, Yong Kook Cho, Jung Hyun Kim, Ji Yeun Chung; Yeungnam Univ J Med. 2005;22(1):52-61. Published online June 30, 2005; DOI: https://doi.org/10.12701/yujm.2005.22.1.52

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Abstract PDF

BACKGROUND
Guillain-Barre syndrome is defined as a recognizable clinical entity that is characterized by rapidly evolving symmetric limb weakness, the loss of tendon reflexes, absent or mild sensory signs, and variable autonomic dysfunctions. This study evaluated the clinical and electrophysiological findings retrospectively. MATERIALS AND METHODS: Forty-five patients with Guillain-Barre syndrome, who were admitted to the Yeungnam University Hospital for six years from Jan. 1994 to Dec. 1999 were investigated. The correlation between the clinical manifestation and the electrophysiological study was evaluated. RESULTS: The male to female ratio was 1.8: 1 and there was a peak seasonal incidence in the winter. A preceding illness was noted in 66.7% of cases, and an upper respiratory tract infection was the most common one. The most common clinical manifestations were a loss of tendon reflex and ascending muscle weakness and paralysis. The cerebrospinal fluid examinations revealed, albuminocytologic dissociation in 33 cases (73.3%). Intravenous immunoglobulin therapy was performed in 29 cases (64.4%). The sequential electrophysiological abnormalities were most marked at 2 to 4 weeks after onset. At that time the most significant change was a decrease in the compound muscle action potential amplitude. These 45 patients with Guillain-Barre syndrome were subclassified using the clinical and electrophysiological data. CONCLUSION: The result in this study, concured with other research on the clinical and electrophysiological data of Guillain-Barre syndrome. However, an extensive and dynamic investigation is necessary to determine the reason for the peak seasonal incidence in winter.

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A Case of Combined Korean Medicine Treatment for Recurrent Limb Weakness after Guillain-Barré Syndrome Improvement: Case Report
Song-Mi Park, Sung-Woo Cho
Journal of Korean Medicine Rehabilitation.2019; 29(4): 135. CrossRef

Antithrombotic Therapy for Ischemic Stroke.: Jung Sang Hah, Jun Lee; Yeungnam Univ J Med. 2003;20(1):1-12. Published online June 30, 2003; DOI: https://doi.org/10.12701/yujm.2003.20.1.1

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Abstract PDF: Ischemic stroke is among the principal causes of death and disability in the elderly. Although control of blood pressure, decreased cigarette smoking, and modified dietary habits are among important reasons for stroke decline, the use of antithrombotic therapy, rigorously prescribed. Several antiplatelet agents are approved to reduce the risk of recurrent stroke. Aspirin is the best-studied and most widely used antiplatelet agent for stroke prevention; it provides approximately 15% to 25% relatively risk reduction for secondary prevention of stroke or the major vascular death. Combining 2 antiplatelet agents with different mechanism of action was demonstrated to provide a substantial increase in efficacy in several studies. Anticoagulation should be considered first with potential cardiac sources of embolism. Heparin reduces development of erythrocyte-fibrin thrombi that form in regions of vascular stasis especially within the heart, in severely stenosed arteries sometimes engrafted on white thrombi, in acute arterial occlusion. Heparin should not be indiscriminately given to all acute brain ischemia patients, but may contribute to treatment of large artery occlusion and severe stenosis, cardiogenic embolism with a high acute recurrence risk, and dural sinus and cerebral venous thromobosis.

Diagnostic Sensitivity of Several Muscles in Repetitive Nerve Stimulation Test for Myasthenia Gravis.: Hyun Jic Kim, Sung Hwan Lim, Seung Yeop Lee, Jung Sang Hah, Wook Nyeon Kim; Yeungnam Univ J Med. 2001;18(2):277-286. Published online December 31, 2001; DOI: https://doi.org/10.12701/yujm.2001.18.2.277

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Abstract PDF: BACKGROUND
This study was undertaken to evaluate the diagnostic sensitivity of several muscles in repetitive nerve stimulation test (RNST) for myasthenia gravis (MG) patients. MATERIALS AND METHODS: The study population consisted of 39 MG patients classified by modified Ossermann's classification. Using Stalberg's method, RNST was systematically performed in facial (orbicularis oculi and nasalis) and upper extremity (flexor carpi ulnaris, abductor digiti quinti and anconeus) muscles. RESULTS: The significant electrodecremental response of RNST were noted in orbicularis oculi (58.9%), nasalis (51.3%), flexor carpi ulnaris (42%), anconeus (41%) and abductor digiti quinti muscles (27%). Among the 3 muscles of upper extremity (abductor digiti quinti, flexor carpi ulnaris and anconeus), the positive electrodecremental response of anconeus muscles was significantly higher than other two muscles (p<0.05) in type IIa, IIb and there were no statistical differences of the positive electrodecremental response between orbicularis oculi and nasalis muscles. The facial muscles showed more prominent decremental responses than upper extremity muscles in type I MG(p<0.05). In type IIa MG patients, there were no significant statistical differences between facial and upper extremity muscles but significant statistical differences among upper extremity muscles. In type IIb MG patients, there were no significant statistical differences in all tested muscles in spite of the increased positive electrodecremental response of RNST. CONCLUSION: On the basis of this study, RNST would be initially performed for the orbicularis or nasalis in type I MG and for the anconeus in type IIa or IIb MG.

Comparison of the Repetitive Nerve Stimulation Test(RNST) Findings Between in Upper and Lower Extremity Muscles in Myasthenia Gravis.: Yun Seuk Jung, Jun Lee, Se Jin Lee, Jung Sang Hah, Wook Nyeon Kim; Yeungnam Univ J Med. 2000;17(2):129-136. Published online December 31, 2000; DOI: https://doi.org/10.12701/yujm.2000.17.2.129

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Abstract PDF: BACKGROUND
AND PURPOSE: This study was undertaken to compare the sensitivity of the Repetitive Nerve Stimulation Test (RNST) between the upper and lower extremity muscles in myasthenia gravis(MG) patients. MATERIALS AND METHODS: The study population consisted of 20 normal persons(control group) and 10 MG patients(MG group). Using Stalberg's method. RNST was systemically performed in orbicularis oculi muscle. upper extremity muscles(flexor carpi ulnaris. abductor digiti quinti), and lower extremity muscles(tibialis anterior. extensor digitorum brevis. vastus medialis). RESULTS: There were statistical differences of decremental response(mean+/-SD) in orbicularis oculi and upper extremity muscles between the control and MG groups(p<0.05 or p<0.01). However, there was no statistical difference of decremental response(mean+/-SD) to RNST in lower extremity muscles between the control and MG groups. There were highersensitivity in orbicularis oculi and upper extremity muscles than lower extremity muscles. Although positive reponse were detected in the lower extremity muscles, the positive response rates of lower extremity muscles were lower than o.oculi and upper extremity muscles. CONCLUSIONS: When the response rates of RNST in facial and upper extremity muscles are normal, may not be required RNST in lower extremity muscles.

A Case of Becker's Type Congenital Myotonia.: Sung Hwan Yun, Jung Sang Hah, Jun Lee; Yeungnam Univ J Med. 1999;16(1):125-130. Published online June 30, 1999; DOI: https://doi.org/10.12701/yujm.1999.16.1.125

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Abstract PDF: Congenital myotonia is a hereditary disorder of the skeletal muscle. The most characteristic features of the disease are myotonia and variable muscular hypertrophy. Molecular biologic investigations have revealed that mutations in the gene of the human skeletal muscle chloride ion channel protein are a cause of the disease. The Becker's type congenial myotonia is clinically similar to the autosomal dominantly inherited congenital myotonia (Thomsen's disease). Both disorders are characterized electrophysiologically by increased excitability of muscle fibers, reflected in clinical myotonia. In general, Becker's type congenital myotonia is more severe than Thomsen's disease in muscular hypertrophy and weakness. The authors recently experienced a 25-year-old female patient who has no family-related disease history and who has conspicuous muscular hypertrophy and the stiffness with muscles which occurred from the age of 3 or 4. Clinically she showed the authors a percussion myotonia. On electrophysiological study, exercise and repetitive stimulation of the abductor digiti quinti muscle disclosed a decline in the compound muscle action potential. Biopsy of biceps muscle revealed enlargement of muscle fibers with marked nuclear internalization. After the oral taking the Mexiletine, the patient showed a favorable turn a little with her stiffness of muscles. So we authors are reporting one case of Becker's type congenital myotonia with review of literatures.

A Case of Leber's Hereditary Optic Nouropathy Showing 11778 Point Mutation of Mitochondrial DNA.: Yun Seok Jung, Seung Kwon Park, Seung Yeop Lee, Jung Sang Hah, Mee Yeoung Park, Se Jin Lee, Jun Lee; Yeungnam Univ J Med. 1999;16(1):114-118. Published online June 30, 1999; DOI: https://doi.org/10.12701/yujm.1999.16.1.114

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Abstract PDF: Leber's hereditary optic neuropathy(LHON) is an optic nerve disease that causes blindness and is associated with maternally inherited mitochondrial DNA(mt DNA) mutations. The most common mitochondrial DNA mutation among LHON patients is a point mutation at the nucleotide 11778 in the subunit 4 of complex I. In one 45-year old male LHON patient with bilateral optic neuropathy, we investigated the presence of a point mutation of mitochondrial DNA and identified a single guanine to adenine transition mutation in the mitochondrial DNA at nucleotide point 11778.

A case of primary antiphospholipid antibody syndrome showing vegetation on the mitral valve through echocardiography.: Seung Yeop Lee, Seung Kwon Park, Sung Hwan Yun, Yun Seok Jung, Hyen Jik Kim, Sung Hwan Lim, Jung Sang Hah, Wook Nyeun Kim; Yeungnam Univ J Med. 1998;15(2):350-358. Published online December 31, 1998; DOI: https://doi.org/10.12701/yujm.1998.15.2.350

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Abstract PDF: Antiphospholipid antibody syndrome(APS) is a well-known clinical syndrome characterized by recurrent arterial or venous thromboses, recurrent fetal loss, thrombocytopenia, together with high titers of sustained anticardiolipin antibody(aCL) or lupus anticoagulant(LA). Although systemic lupus erythematosus(SLE) and APS may coexist, a high proportion of patients manifesting the APS do not suffer from classical lupus or other connective tissue disease. The patient has been defined as having a primary antiphospholipid antibody syndrome. We experienced one case of primary APS with recurrent fetal loss, recurrent cerebral infarctions, positive anticardiolipin antibody IgG and fluttering vegetation on the mitral valve, without other connective tissue diseases including SLE. Forty-three old female had 2 out of 11 criteria for the diagnosis of SLE, such as thrombocytopenia and positive antinuclear antibody, but did not meet whole criteria. The patient was treated with ticlopidine, and anticoagulant therapy was recommended.

Comparison of Usefulness of Laboratory Tests in Diagnosis of Myasthenia Gravis.: Seung Kwon Park, Hyun Cheol Do, Min Jung Kim, Seung Yeop Lee, Mee Yeoung Park, Jung Sang Hah, Wook Nyeun Kim, Jun Lee; Yeungnam Univ J Med. 1998;15(1):125-134. Published online June 30, 1998; DOI: https://doi.org/10.12701/yujm.1998.15.1.125

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Abstract PDF: PURPOSE: This study was undertaken to evaluate the clinical usefulness of Tensilon test, repetitive nerve stimulation test(RNST), single fiber EMG(SFEMG) test and acetylcholine receptor antibody(AchR Ab) assay for making diagnosis of myasthenia gravis(MG). METHOD: These tests were performed in 21 MG patients which were classified into 11 ocular, 5 mild generalized, 4 moderate generalized, and 1 chronic severe MG. RESULT: The overall positivity of Tensilon test, SFEMG and AchR Ab was 95%, 87%, and 76% respectively. The overall positivity of RNST was 67%; 38% on flexor carpi ulnaris, 43% on adductor digiti quinti and 62% on orbicularis oculi muscles. The positivity of each test was higher in generalized MG group than in ocular MG group. But we could observe the statistically significant difference only in the RNST(p<0.05). CONCLUSION: Tensilon test showed the highest positivity in all MG groups. So we would like to recommend the Tensilon test for the diagnosis of MG at first, followed by RNST and AchR Ab assay, and SFEMG would be indicated to MG group which showed relatively low postivity in other tests.

A Case of Idiopathic Hypoparathyroidism with Extensive Intracranial Calcification.: Wook Nyeon Kim, Jung Sang Hah; Yeungnam Univ J Med. 1997;14(1):220-226. Published online June 30, 1997; DOI: https://doi.org/10.12701/yujm.1997.14.1.220

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Abstract PDF: Idiopathic hypoparathyroidism is frequeutly associated with intracranial calcification and neuropsychiatric abnormalities. The most commonly recognized central nervous system manifestations of chronic hypoparathyroidism are seizure, alteration of mental function and extrapyramidal signs. We present a care of hypoparathyroidism, demonstrating extensive intracranial calcification, not only basal ganglia, but also outside the extrapyramidal system. An 58-year-old woman presented with 30 year history of seizure and memory disturbance. The physical examination and several laboratory studies disclosed normal. However hypocalcemia, hyperphosphatemia with hypocalciuria and decreased parathormone level were demonstrated. Clinical symptoms and signs showed improvement after supplementary calcium and Vit D3 therapy.

Utility of H-reflex in the Diagnosis Cervical Radiculopathy.: Jun Lee, Gun Ju Park, Hyun Cheol Doo, Sung Geon Park, Yun Seog Jeong, Jung Sang Hah; Yeungnam Univ J Med. 1997;14(1):111-122. Published online June 30, 1997; DOI: https://doi.org/10.12701/yujm.1997.14.1.111

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Abstract PDF

H-reflex is a kind of late respons which can be used for the proximal nerve conduction study. Also it is a useful and widely used nerve conduction technique es to look electrically at the monosynaptic reflex. Although recordable from all muscles theoretically, H-reflexes are most commonly recorded from the calf muscles following stimulation of the tibial nerve in the popliteal fossa. But in this study, We tried to establish the normal data and to evaluate the significance of the H-reflex study in cervical radiculopathy. H-reflexes were recorded from flexor carpi radialis (FCR) muscle, extensor carpi radialis (ECR) muscle, brachioradialis (BR) muscle, and abductor digiti minimi (ADM) muscle in 31 normal adults (62 cases) and 12 patients with cervical radiculopathy. The mean values of H-reflex latency in normal control group were 16.16+/- 1.65 msec in FCR; 15.99+/- 1.25 msec in ECR; 16.47+/- 1.59 msec in BR; 24.46+/- 1.42 msec in ADM. And the mean values of side to side difference of H-reflex latency were 0.47+/- 0.48 msec in FCR; 0.68+/- 0.72 msec in ECR; 0.63+/- 0.43 msec in BR; 22.31+/- 1.24 msec in ADM. Mean values of side to side differences of interlatency time were 0.49+/-0.47 msec in FCR; 0.73+/- 0.62 msec in ECR; 0.79+/- 0.71 msec in BR; 0.69+/- 0.44 msec in ADM. Also, there were no significant differences in H-reflex latency between right and left side. H-reflex tests in patient group with cervical radiculopathy revealed abnormal findings in 11 out of 12 patients. These results suggest that H-reflex in the upper extremity would be helpful in the diagnosis of the cervical radiculopathy.

Citations

Citations to this article as recorded by

Retraining Reflexes: Clinical Translation of Spinal Reflex Operant Conditioning
Amir Eftekhar, James J.S. Norton, Christine M. McDonough, Jonathan R. Wolpaw
Neurotherapeutics.2018; 15(3): 669. CrossRef
Abnormal Flexor Carpi Radialis H-Reflex as a Specific Indicator of C7 as Compared With C6 Radiculopathy
Chaojun Zheng, Yu Zhu, Feizhou Lv, Xiaosheng Ma, Xinlei Xia, Lixun Wang, Xiang Jin, Robert Weber, Jianyuan Jiang, Kevin Anuvat
Journal of Clinical Neurophysiology.2014; 31(6): 529. CrossRef
Utility of Flexor Carpi Radialis H-Reflex in Diagnosis of Cervical Radiculopathy
Dariush Eliaspour, Ehsan Sanati, Mohammad Reza Hedayati Moqadam, Seyed Mansoor Rayegani, Mohammad Hasan Bahrami
Journal of Clinical Neurophysiology.2009; 26(6): 458. CrossRef

Distribution of Weakness at the Lower Extremity of Hemiparesis Patients.: Gun Ju Park, Jung Sang Hah, Wook Nyeun Kim; Yeungnam Univ J Med. 1997;14(1):101-110. Published online June 30, 1997; DOI: https://doi.org/10.12701/yujm.1997.14.1.101

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Abstract PDF: The maximal voluntary strength of knee extension and flexion on both the right and left sides was measured in patients with hemiparesis of upper motor neuron type and in a group of normal subjects. Significant differences of maximal voluntary strength were found between male and female but the ratio of flexor to extensor strength did not vary significantly between the sides, between the exs in normal subjects. The maximal voluntary strength of uninvolved side were not reduced significantly but involved side reduced significantly in patients. The ratio of flexor to extensor strength in hemiparetic side was significantly less than the ratio for the normal subjects but not significant difference in uninvolved side of patients. According to the above results, the maximal voluntary strength of flexion was more reduced than that of the extension on lower extremity of hemiparesis patients. The strength ratio of flexion to extension was a useful parameter for guiding the rehabilitation of hemiparesis.

A Clinical Study of 52 Patients with Myasthenia Gravis Syndrome.: Gun Ju Park, Jung Sang Hah, Jun Lee, Hyun Cheol Do, Seung Kweun Park, Sang Dug Suh, Byung Soo Kee; Yeungnam Univ J Med. 1996;13(1):86-96. Published online June 30, 1996; DOI: https://doi.org/10.12701/yujm.1996.13.1.86

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Abstract PDF: The authors experienced 52 patients with myasthenia gravis who were diagnosed at the Department of Neurology, Yeungnam University Hospital from August 1985 to January 1996. The following results were obtained through diagnostic evaluation and treatment. 1. The ratio of male to female was 1:1.7 and the most prevalent age group was second decade. 2. The most common initial presentation symptom was ocular(71.2%) and the peak incidence group was stage I (69.3%) according to the modified Osserman's classification. 3. In 16 patients(30.8%), it took more than a year to diagnose due to symptoms which were relapsed and remitting. 4. Of 52 patients, 2 cases were associated with thyroid disease(3.8%) and 2 with insulin-dependent diabetes mellitus(3.8%). 5. All of those who received anticholinesterase and corticosteroid therapy were improved with the exception of 5 cases which were improved after thymectomy and/or plasmapheresis.

The Factors Related to Intractability in Patients with Partial Epilepsy.: Yeung Ki Lee, Yeing Ju Byun, Mee Yeong Park, Jung Sang Hah, Se Jin Lee; Yeungnam Univ J Med. 1995;12(2):306-318. Published online December 31, 1995; DOI: https://doi.org/10.12701/yujm.1995.12.2.306

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Abstract PDF: To evaluate the intractability of partial epileptic patients by variables, the author studied 113 patients (uncontrolled: 45, controlled: 68) who were admitted to the Department of Neurology, College of Medicine, Yeungnam University from January, 1991 to August, 1993. The results were as follows. The items related to complex partial seizures, multiple seizure types and a histories of status epilepticus or clusters of seizures were significantly associated with drug-refractoriness (p<0.01). A high frequency of seizures before evaluation was associated with a poor outcome(p<0.01). The presences of known etiology of seizures, neurologic abnormalities and psychiatric disturbance were associated with limited treatment responses(p<0.01, p<0.05, p<0.01). An abnormal EEG findings such as background slowing, focal slowing, epileptiform discharges or secondarily bilateral synchrony were statistically significant (p<0.01). Age at onset, sex, distribution of epileptic foci, duration of seizure before evaluation, family history and abnormal neuroradiologic findings were not statistically significant. By these results, it was suggested that having at least four factors of the above variables were associated with limited treatment response.

Motor Evoked Potential Study with Magnetic Stimulation In Ischemic Stroke Patients.: Seong Min Kim, Sang Dug Suh, Jun Lee, Jung Sang Hah; Yeungnam Univ J Med. 1994;11(2):248-261. Published online December 31, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.2.248

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Abstract PDF: This study was undertaken to evaluate the clinical usefulness of magnetic motor evoked potential (MEP) in the diagnosis of stroke and predicting the motor improvement following stroke. The cortical, cervical and lumbar stimulations were performed in the case of 24 healthy controls and 24 to a target muscle between after transcranial stimulation and after cervical or lumbar stimulation. There was no case showing no response in controls. But in 11 out of 24 ischemic patients, we could not get cortical MEP. Mean CMCT of abductor pollicis brevis muscle was not significantly different in controls and stroke patients in whom MEPs were recorded. There were significant differences between mean CMCT of normal controls and that of stroke patients showing MEPs in AH Muscle. MEP Results from testing the stroke patients were correlated with site of lesion, degree of motor weakness and motor improvement after 1 to 2 months. These results suggest that magnetic MEP is easy and useful in electrophysiological test of central motor pathway and is useful indicator for representing the motor weakness and predicting the motor outcome in acute ischemic stroke patients.

Significance of Dexamethasone Suppression Test in Patients with Stroke.: Wook Nyeon Kim, Seong Min Kim, Byung Soo Kee, Mee Yeong Park, Jung Sang Hah, Yeung Ju Byun; Yeungnam Univ J Med. 1994;11(1):63-71. Published online June 30, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.1.63

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Abstract PDF: The purpose of this study was to evaluate the effect of stroke on hypothalamic-pituitary axis using dexamethasone suppression test. The effects were evaluated according to age, sex, type, size, and lesion site of stroke. There tests were performed in 62 patients with stroke(cerebral infarction, 42 cases : intracerebral hemorrage, 20 cases) and 21 disabled controlled patients without intracranial diseases at Yeungnam University Hospital from June 1992 to June 1993. The results summarized as follows. 1. Cerebral infarction showed significantly higher frequency of DST non-suppression in stroke patients than control (p<0.05). 2. Patients with left hemisphere stroke showed more frequent abnormal neuroendocrine test results (p<0.01). 3. Patients with large infarction revealed strongly non-suppressed DST results(p<0.01). 4. Significantly higher basal cortisol level in patients with cerebral infarction was noted(p<0.01). 5. There are no statistical significance between DST results and sex, age, motor impairment, type of cerebral infarction.

MR imaging of internuclear ophthalmoplegia due to cerebrovascular diseases.: Suk Hee Kim, Young Ki Lee, Jung Sang Hah, Young Ju Byun, Choong Suh Park, Sun Yong Kim; Yeungnam Univ J Med. 1991;8(1):220-230. Published online June 30, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.1.220

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Internuclear ophthalmoplegia is a conjugated gaze disorder characterized by impaired adduction on the side of a lesion involving the medial longitudinal fasciculus with dissociated nystagmus of the other abducting eye. Six patients with INO (who had clinical cerebrovascular diseases) underwent MR imaging and the results were as follows: 1. The MLF lesions were identified by MR imaging in 5 cases 2. The ratio of unilateral INO to bilateral INO was 5:1 3. The nature of lesions was infarction in 4 cases and hemorrhage in 1 case 4. The sites of MLE lesion were in the midbrain in 4 cases and in the pons in 1 case 5. All 5 cases of INO identified by MR imaging had other lesion sites in addition to MLE lesion.

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A Case Report of Idiopathic Bilateral Internuclear Ophthalmoplegia
Ye-Jin Eom, Chul-Hee Hong
The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology.2016; 29(3): 177. CrossRef

A clinical study of acute carbon monoxide intoxication.: Kyong Chan Choi, Mee Yeung Park, Jung Sang Hah, Yeung Ju Byun, Choong Suh Park; Yeungnam Univ J Med. 1991;8(1):86-97. Published online June 30, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.1.86

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Abstract PDF: To obtain the basic data of prognosis of acute carbon monoxide (CO) intoxication, one hundred and sixteen cases of CO intoxication defined by carboxyhemoglobin (COHb) and admitted via emergency room of Yeungnam University Hospital from Oct. '85 to April' 89 have been clinically analyzed and evaluated, including delayed postanoxic encephalopathy (DPE) and the following results were obtained. 1. The ratio of male to female was 1:1.5 and mental state was drowsy mostly (26.2% of 116 cases) 2. The more disturbed the mental state, the more decreased was the arterial pH and PaCO₂, which may be the result of metabolic acidosis. 3. The early laboratory findings in patients of CO intoxication were as follows: leukocytosis-65.5%, increase of hematocrit-23.3%, hyperglycemia-19.8%, increase of GPT-19.8% increase of creatinine-0.9% and glucosuria-12.1%. 4. The early findings of EKG were abnormal in 35.3%: change of rhythm-25.0%, abnormal ST segment 15.5% (change of rhythm and abnormal ST segment-5.2%) but the conduction disorder was not present. 5. The abnormal EEG above mild degree was 93.1%, of which moderate was most frequent (80.2%). 6. The incidence of DPE was 7.8% among all admitted CO patients. DPE cases had long duration of exposure time (8 hours), severe leukocytosis (20,000) and an abnormal EEG (MA).

Study on the changes of nerve conduction with wrist fixation in carpal tunnel syndrome.: Se Jin Lee, Kyung Yoon O, Mee Yeong Park, Jung Sang Hah, Yeung Ju Byun, Choong Suh Park; Yeungnam Univ J Med. 1991;8(1):79-85. Published online June 30, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.1.79

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Abstract PDF: The author studied 20 healthy adults (20 hands) as a control and 30 patients (40 hands) with carpal tunnel syndrome to evaluate the clinical usefulness of measuring nerve conduction velocity after wrist flexion in diagnosis of carpal tunnel syndrome. The median nerve conduction velocity over wrist to finger segment was measured before and after wrist flexion for 1, 2 and 5 minutes, using belly-tendon method for motor nerve distal latency (MNDL) and antidromic method for sensory nerve conduction velocity (SNCV). The results were as follows: 1. In control group, MNDL increased in 1 hand and SNCV decreased in 2 hands after wrist flexion. In patient group, MNDL increased in 2 hands and SNCV decreased in 3 hands after wrist flexion. 2. In both control and patient group, there were no significant changes in mean values of SNCV and MNDL between before and after wrist flexion. 3. Phalen's wrist flexion test was positive in 5 percent of control and 60 percent of patient group. 4. Tinel's sign was present in 10 percent of control and 33 percent of patient group.

Eaton-Lambert Syndrome with Small Cell Lung Cancer: A case report.: Kyeong Hee Lee, Moon Kwan Chung, Myung Soo Hyun, Jae Chun Chung, Hyun Woo Lee, Jung Sang Hah, Yeung Ju Byun; Yeungnam Univ J Med. 1989;6(1):171-178. Published online June 30, 1989; DOI: https://doi.org/10.12701/yujm.1989.6.1.171

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Abstract PDF: Eaton Lambert Syndrome (ELS) is a disorder of neuromuscular transmission. The defect of neuromuscular transmission is due to decrease in the release of acetylcholine quanta from nerve terminal. This syndrome is frequently associated with bronchogenic carcinoma. The diagnosis is established by electromyography, which characteristically shows 1) low amplitude of evoked compound muscle potential to a single supramaximal stimulus on nerve, 2) significant decremental response at low rates of stimulation 3) marked incremental response at high rates of stimulation. Our patient is 52year old man with dyspnea, coughing and muscle weakness of proximal lower limbs. He has small cell lung cancer and associated with ELS, Superior vena cava syndrome and has metastatic lesion on right supraclavicular lymph node confirmed by pathology. Metastatic mass and SVC syndrome are marked improved following chemotherapy and radiotherapy, however follow up EMG finding does not improved. We are here reporting one case which considered compatible for ELS, with a few elementary reviewed literatures.

A Study of Nerve Conduction Velocity of Normal Adults.: Kyoung Chan Choi, Jung Sang Hah, Yeung Ju Byun, Choong Suh Park, Chang Heon Yang; Yeungnam Univ J Med. 1989;6(1):151-163. Published online June 30, 1989; DOI: https://doi.org/10.12701/yujm.1989.6.1.151

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Nerve conduction studies help delineate the extent and distribution of the neural lesion. The nerve conduction was studied on upper (median, ulnar and radial nerves) and lower (personal, posterior tibial and sural nerves) extremities in 83 healthy subjects 23 to 66 years of age, and normal values were established (Table 1). The mean motor terminal latency (TL): median, 3.6 (±0.6) milliseconds; ulnar, 2.9 (±0.5) milliseconds; radial nerve, 2.3 (±0.4) milliseconds. Mean motor nerve conduction velocity (MNCV) along distal and proximal segments: median, 61.2 (±9.1) (W-E) and 57.8 (±13.2) (E-Ax) meters per second; ulnar, 63.7 (±9.1) (W-E) and 50.6 (±10.0) meters per second. Mean sensory nerve conduction velocity (SNCV): median, 34.7 (±6.7) (F-W), 63.7 (±7.1) (W-E) and 62.8 (±12.3) (E-Ax) meters per second; ulnar, 38.0 (±6.7) (F-W), 63.4 (±7.5) (W-E) and 57.0 (±10.1) (E-Ax) meters per second; radial, 45.3 (±6.8) (F-W) and 64.2 (±11.0) (W-E) meters per second; sural nerve, 43.4 (±6.1) meters per second. The amplitudes of action potential and H-reflex were also standardized. Mean H latency was 28.4 (±3.2) milliseconds. And, the fundamental principles, several factors altering the rate of nerve conduction and clinical application of nerve stimulation techniques were reviewed.

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Skin type and nerve effects on cortical tactile processing: a somatosensory evoked potentials study
Marco Guidotti, Clément Beaurieux, Pierre Marionnaud, Frédérique Bonnet-Brilhault, Claire Wardak, Marianne Latinus
Journal of Neurophysiology.2023; 130(3): 547. CrossRef

Clinical Study of CT-diagnosed Olivopontocerebellar Atrophies.: Mee Yeong Park, Khyoung Yhun O, Jung Sang Hah, Yeung Ju Byun, Choong Suh Park; Yeungnam Univ J Med. 1988;5(2):87-93. Published online December 31, 1988; DOI: https://doi.org/10.12701/yujm.1988.5.2.87

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Abstract PDF: The diagnosis of OPCA could be made clinically with important aid of brain CT scanning, although the definite and conclusive diagnosis only by postmortem pathological determination. We reviewed, clinically and with brain CT examination, 12 cases of patients with OPCA who were admitted to the Yeungnam University Hospital for a recent 5 years. The result were as following: 1. The distribution of age is from 49 to 72, mainly 50 to 60. Man is more frequent than women at the 4.5 times. 2. The interval period from Sx. Onset to diagnosis is 1 year to 6 years. 3. The usual initial Sxs. Were dizziness (58%), ataxia (33%), and other less frequent Sxs. Were weakness of low extremities, dysarthria, headache and urinary incontinence. The clinical manifestations at the initial diagnosis were cerebellar disturbance (100%), dysarthria (83%), and increased deep tendon reflexes (58%). 4. The results of brain CT finding are like this: the width of cerebellar sulci is more than 1mm, other 4 cases more than 2mm. the width of cerebellar pontine cistern of the patient if usually 3 to 4mm, other 2 cases extended to the 5 mm. the A. P and lateral lengths of 4th. ventricle is 4 mm and 4 to 8 mm respectively. 6 cases of whole patients show coincidentally cerebral atrophy.

A Case of One and A Half Syndrome.: Khyoung Yhun O, Jung Sang Hah, Yeung Ju Byun, Choong Suh Park; Yeungnam Univ J Med. 1988;5(1):167-172. Published online June 30, 1988; DOI: https://doi.org/10.12701/yujm.1988.5.1.167

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Abstract PDF: One and a half syndrome is an ipsilateral gaze paresis or palsy combined with and internuclear ophthalmoplegia on contralateral gaze. The lesion site is at the paramedian pontine reticular formation and the adjacent MLF. The common causes are unilateral pontine infarction and multiple sclerosis. We experienced a case of one and a half syndrome which has a suspected small pontine infarct.

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