• Journal of the Korean Society of Physical Medicine
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• v.13 no.3
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• pp.99-111
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• 2018

PURPOSE: This study was conducted to identify the effects of sympathetic conversation on stress, anxiety and depression, and muscle tone in chronic stroke patients. METHODS: Patients were randomly assigned to either an experimental group (EG, n=7) or control group (CG, n=7). Both groups participated in a pretest before intervention. Subjects were asked to undergo: 1) electroencephalogram, 2) Stress Response Inventory, 3) Hospital Anxiety and Depression Scale, 4) muscle tone and stiffness testing. After the pretest, EG received sympathetic conversation and CG received a simple explanation about stroke recovery and rehabilitation. Following the intervention, both groups were immediately administered a post test. RESULTS: In EG, the electroencephalogram relative alpha power was significantly increased (p<.05), while the electroencephalogram relative gamma power was significantly decreased (p<.05). The Stress Response Inventory and Hospital Anxiety and Depression Scale scores decreased significantly in both groups (p<.05). In addition, muscle tone and stiffness decreased significantly in the EG (p<.05) CONCLUSION: The results of the present study indicate that sympathetic conversation had a positive effect on stress, anxiety and depression, and muscle tone in patients with chronic stroke. Therefore, sympathetic conversation could be used to improve not only psychological problems in chronic stroke patients including stress and anxiety, but also physical conditions including muscle tone.

• The Korean Journal of Pain
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• v.3 no.2
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• pp.165-171
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• 1990

The reflex sympathetic dystrophy syndrome (RSDS) consists of sustained burning pain and tenderness, vasomotor instabilitiy, swelling, occasional functional instability, trophic skin change and edema of extremity following trauma, peripheral nerve injury, spinal cord injury, infection, burn and other etiologic factors. The most important thing in RSDS is to start the treatment as soon as the disease was diagnosed. Most patients with RSDS respond dramatically and permanently to sympathetic blocks if treatment is instituted before irreversible trophic changes. The characteristic radiological finding in RSDS is a patchy osteoporosis in the cancellous bone. Periarticular hyperactivity is seen in RSDS by Tc99m bone scan. We have managed 4 cases of RSDS. The methods of management and effects are as follows: 1) In case 1, 28 lumbar sympathetic blocks in both sides were performed. The patient did not complain of pain or tenderness and the limping improved. 2) In case 2, 7 lumbar sympathetic blocks were performed, but we could find only a slight improvement in the symptoms. 3) In case 3, 8 stellate ganglion blocks were carried out. The patient refused the treatment of RSDS because of the lack of rapid improvement. 4) In case 4, total 64 stellate ganglion blocks were carried out; the patient was permanently improved.

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.234-235
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• 2006

The protection relay keeps electric power facilities by using signals of the voltage and current which are input and output terminals of each equipment. Each relay performances protection algorithm by using informations of own protecting zone. To prevent the mal-operation in inrush current, established transformer differential protection method uses the second harmonics as blocking signal. This method is not operate at the initial inrush. However, in case of the parallel operation, if the initial inrush is occurred in one transformer which is generated, the sympathetic inrush Is occurred in adjacent transformer. This paper approach the sympathetic inrush detecting algorithm of a transformer based on agent. Proposed algorithm, when inrush current occurred, distinguish sympathetic inrush or not by using differential current of adjacent transformer. This algorithm have the advantage of the distinguishing initial inrush and sympathetic inrush at operation of parallel transformer

• Physical Therapy Korea
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• v.3 no.2
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• pp.77-83
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• 1996

The purpose of this study was to determine the effect of transcutaneous electrical nerve stimulation(TENS) on sympathetic tone in healthy subjects. Stimulation in the conventional and burst modes was applied to the skin of the forearm overlying the median nerve. TENS was applied for 20 minutes at an intensity sufficient to produce a perceptible though not uncomfortable sensation and no muscle contracion of the forearm musculature. The change in sympathetic tone was measured with skin temperature. Skin temperature was measured at the index finger and on the volar surface of the forearm in the stimulated limb. The conventional and burst modes did not change the skin temperature at any of the two measurement sites. We conclude that TENS, as applied in this study, does not influence sympathetic tone. Further research is needed to assess the sympathetic effects of TENS on patient groups, long term treatment and other modalities.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.27 no.2
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• pp.73-77
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• 2016

Laryngopharyngeal reflux disease (LPRD) is different with gastroesophageal reflux disease (GERD). The lower esophageal sphincter (LES) possesses an intrinsic nervous plexus that allows the LES to have a considerable degree of independent neural control. Sympathetic control of the LES and stomach stems from cholinergic preganglionic neurons in the intermediolateral column of the thoracic spinal cord (T6 through T9 divisions), which impinge on postganglionic neurons in the celiac ganglion, of which the catecholaminergic neurons provide the LES and stomach with most of its sympathetic supply. Sympathetic regulation of motility primarily involves inhibitory presynaptic modulation of vagal cholinergic input to postganglionic neurons in the enteric plexus. The magnitude of sympathetic inhibition of motility is directly proportional to the level of background vagal efferent input. Recognizing that the LES is under the dual control of the sympathetic and parasympathetic nervous systems, we refer the reader to other comprehensive reviews on the role of the sympathetic and parasympatetic control of LES and gastric function. The present review focuses on the functionally dominant parasympathetic control of the LES and stomach via the dorsal motor nucleus of the vagus.

• The Journal of Internal Korean Medicine
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• v.32 no.2
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• pp.259-277
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• 2011

Objectives : The purpose of this study was to investigate two subjects: the diagnostic value of bilateral lowering of electrical activity at point H4,5,6 of Ryodoraku and the mechanism for Ryodoraku phenomena. Methods : Electrical activities of Ryodoraku test and electrogastrography recorded simultaneously and monitored continuously from 16 cases of functional dyspeptic patients were collected and their variations were grouped by the topics of discussion which were peculiarity, stability, lagging, alterability, and anomaly. Ryodoraku recordings obtained from 6 patients with different gastrointestinal diseases and 1 normal healthy person were used as control. The results are discussed with Nakatani's suggestion, theory of sympathetic nerve and Meridian Principle, respectively. Finely, coincidence of stomach arrangement between anatomy and meridian system in Ryodoraku was also evaluated. Results : Time-course variation showed a regular relationship between the typical pattern of Ryodoraku at point H4,5,6 and gastric myoelectrical activity. However, an irregular relationship and atypical pattern of Ryodoraku occasionally appeared. A literature search suggested that electrical response at the Ryodoraku point H4,5,6 may be dependent on an afferent sympathetic spinal reflex transmitted from the stomach. However, there was no evidence for making clear whether bilateral lowering of electrical activity at this point was induced by hypofunction of local sympathetic nerve in the skin itself or of signals transmitted from the gastric sympathetic nerve or not. The coincidence of 19% could not provide a visceral arrangement of the stomach between anatomy and meridian systems. Conclusions : Bilateral lowering of electrical activity at Ryodoraku point H4,5,6 has value as a diagnostic index for gastric dysmotility of functional dyspepsia. This phenomenon is associated with spinal reflex transmitted from the afferent sympathetic nerve in the stomach but not that of meridian function.

• Journal of the Korean Academy of Clinical Electrophysiology
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• v.5 no.2
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• pp.11-21
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• 2007

The purpose of this study were to investigate influence of heat stress temperature on sympathetic nerve activities. Subjects were 8 normal adults (4 men, 4 women, 21.36 years old). First sympathetic nerve activities were measured at the point that increase of core temperature stops at the state of applying normal thermic temperature (NIT; $34^{\circ}C$). After measurement, temperature of bathtub was increased to heat stress temperature (HST; $46^{\circ}C$) and sympathetic nerve activities were remeasured at the point that temperature increase stops. Sympathetic skin response (SSR) were analyzed using EMG, IR thermometer, and auto stethoscope. SSR latency showed significant differences at both palms by electrical stimulation to median nerve (p<.05). Electrical stimulation to forehead showed significant difference at left palm (p<.05) and electrical stimulation to navel showed significant difference at right palm (p<.05). Median nerve in changes of SSR amplitude showed significant differences at both palms in HST (p<.01). Electrical stimulation to navel showed significant difference at left palm (p<.05). Ts of forehead and xiphoid process showed significant differences (p<0.01). Tc of oral (p<0.05) and inner ear (p<0.01) showed significant differences. Pulse rate showed significant difference (<0.05). This study showed that immersion in HST had significant decrease of excitability in sympathetic nervous system compared to immersion in NTT.

• The Korean Journal of Pain
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• v.10 no.1
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• pp.86-88
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• 1997

Regional sympathetic blockade is the most effective treatment for reflex sympathetic dystrophy (RSD). Radiofrequency thermocoagulation provides longer duration of pain relief than local anesthetics and less complication than chemical neurolytic agents for lumbar sympathectomy. Spinal cord stimulation (SCS) is thought to be an effective modality yieding good results in treating intractable neuropathic pain. Therefore RSD might be a good indication for SCS. We treated a patient with RSD who responded well to lumbar sympathetic blockade (LSB) with radiofrequency thermocoagulation and SCS. The patient had a left ankle sprain requiring a case for the lower leg for 2 weeks. The patient suffered increasing pain and swelling on the lower part of that leg. We thought to block the lumbar sympathetic chain utillzing radiofrequency thermocoagulation 2 days after LSB with local anesthetics. The results provided accepatable pain relief (VAS $8{\rightarrow}15$) but the patient still could not walk due to remaining pain which was further aggravated by walking. After SCS, pain relief improved (VAS $5{\rightarrow}13$) and patient could walk without assistance.

• The Korean Journal of Pain
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• v.23 no.1
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• pp.11-17
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• 2010

Background: The target of lumbar sympathetic ganglion block is the anterolateral surface of the L2, 3 and 4 vertebral bodies, where the lumbar sympathetic ganglion usually lies. In most cases, a block-needle is inserted approximately 5-8 cm lateral to spinous process on the skin and directed to the anterolateral surface of vertebral body obliquely. The purpose of this study is to determine the safe entry angle and entry point in Korean by using the abdominal CT scan images. Methods: The abdominal CT images of eighty five patients were recruited to this study. The minimal angle aimed at the lumbar sympathetic ganglion that can pass through the lateral aspect of body and maximal angle that avoids puncturing the kidney, ureter or retroperitoneal space were measured. The distance from midline to skin entry point was also measured. Results: There was no significant difference in entry angle among L2, 3, and 4 level. The entry angle was similar in the right and left side, and in males and females. The entry angle of old age group was significantly smaller than that of young age group. The calculated safe entry angle was $30.5{\pm}0.4^{\circ}$ and entry point was $7.7{\pm}0.2\;cm$ and $6.7{\pm}0.1\;cm$ lateral from midline in males and females respectively. Conclusions: These measurements can be used as a reference for lumbar sympathetic ganglion block and radiofrequency lesioning. Prior to performing the lumbar sympathetic ganglion block for cancer patients, the abdominal CT scan should be reviewed to prevent complications.

• The Korean Journal of Physiology
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• v.26 no.1
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• pp.75-88
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• 1992

It is well established that neurons in ventrolateral medulla play a key role in determining the vasomotor tone. The purpose of present study is to identify sympathetic related, medullospinal tract neurons in ventrolateral medulla and to show that these mediate somato-sympathetic reflex. Medullospinal tract cells were identified by antidromic stimulation to intermediolateral nucleus (IML) of the second thoracic ($T_2$) spinal cord in anesthetized cats. Peripheral nerves were stimulated for orthodromic activation of these cells and peripheral receptive fields were determined. Post R wave histogram of unit and spike triggered averaging of sympathetic nerve discharge (SND) were used to define sympathetic related cell. A total of 113 neurons was recorded in ventrolateral medulla that had the axonal projections to $T_2$ spinal cord. Thirty four of these medullospinal cells showed spontaneous discharges and the others not. Between these two groups, rostro-caudal coordinate of the distribution from obex [$4.7{\pm}0.2\;$ (mean S.E.) mm, 4.1 0.1 mm], depth from dorsal surface ($5.5{\pm}0.2mm,\;4.9{\pm}0.1mm$ and conduction velocity ($9.9{\pm}1.7m/sec,\;16.7{\pm}1.9\;m/sec$) were significantly different (p<0.05). In spontaneously discharging group, characteristics of rostral and caudal groups were significantly different and we demonstrated that cells in rostral group mediate somatosympathetic reflex. From these results, we conclude that a certain portion of spontaneously discharging medullospinal tract cells in rostral ventrolateral medulla comprise the efferent outputs of somatosympathetic reflex to sympathetic preganglion neurons.