1.Revascularization of occlusive arterial disease in the lower extremity with the transluminal endarterectomy catheter(TEC).
Jae Kyu KIM ; Jeong Jin SEO ; Byung Kwan KOH ; Hyun De CHUNG
Journal of the Korean Radiological Society 1992;28(2):211-214
Revascularizations of 14 occlusive arterial diseases in the lower extremities with the Transluminal Endarterectomy Catheter was done successfully. The causes of occlusions were atherosclerosis in 9 cases and cardiogenic thromboembolism in 5 cases. The site of lesions were at the common femoral artery in 1 case, the superficial femoral artery in 6 cases and the popliteal artery in 7 cases. The length of the lesion were below 5cm(n=3), 5-10cm(n=2), 11-20cm(n=6) and 21-30cm(n=3). Complications were distal embolism(n=1) and hematoma at the puncture site(n=1). No symptoms recurred in any cases during 2 months -15 months followup. Endarterectomy with Transluminal Endarterectomy Catheter was found to be an effective method for revasculizations of occlusive arterial disease in the lower extremity, especially in long segmental occlusion.
Atherosclerosis
;
Catheters
;
Endarterectomy*
;
Femoral Artery
;
Follow-Up Studies
;
Hematoma
;
Lower Extremity*
;
Methods
;
Popliteal Artery
;
Punctures
;
Thromboembolism
2.Review of Pragmatic Clinical Trials on Acupuncture
Sang-hoon Lee ; Byung-kwan Seo ; Jung-chul Seo ; Seung-deok Lee ; Sun-mi Choi ; Yong-suk Kim
Journal of the Japan Society of Acupuncture and Moxibustion 2005;55(5):716-722
[Background] Over the last thirty years, majority of researches on clinical effectiveness of acupuncture have been explanatory (or experimental) randomized controlled trial. The benefits of acupuncture in clinical trials are stillcontroversial and most studies concluded that further control studies were required. Standardized combinations of acupuncture points for all the experimental subjects in various past studies have been criticized because such treatments do not reflect current routine clinical treatment.
[Objective] This paper aims to review pragmatic clinical trials on the effect of acupuncture treatment and to develop the ideal clinical research methodology of acupuncture study.
[Method] Clinical studies of acupuncture relevant with pragmatic or individualized trials were searched mainly in Pubmed and Science direct databases. All articles were fully reviewed by researchers, and data were evaluated by usage of a standardized form.
[Results & Suggestion] Pragmatic acupuncture researches were tried for various symptoms (eg. low back pain, hypertension, depression during pregnancy, sleep quality in HIV disease, chronic poststroke leg spasticity, headache, etc). Individualized acupuncture treatments based on oriental disease pattern diagnosis reflexes practical treatments which is more effective than unified and fixed acupuncture treatments without any theoretical basis of oriental medical philosophy.
[Conclusion] To overcome the controversies and limitations of past explanatory acupuncture trials, more individualized and tailored acupuncture trials with the theoretical basis of oriental medical diagnosis is highly recommended. Also clear definition and categorization of pattern identification should be established for further active clinical researches and applications of acupuncture.
3.Surgical treatment of giant cavernous hemangiomas of the liver: analysis of 7 patients.
Jae Kwan SEO ; Byung Ki LEE ; Kwang Hee KIM ; Man Ha HUH
Journal of Korean Medical Science 1991;6(2):127-133
Seven patients with giant cavernous hemangioma of the liver were treated surgically with success at Pusan Gospel Hospital, Kosin Medical College, Pusan, from 1980 through 1989. They were 3 males and 4 females, and their ages ranged from 6 to 59 years. The tumors were located on the right lobe of the liver in 5 patients and on the left lobe in 2. The lesions were solitary in all patients, and their sizes varied from 4cm to 15cm in diameter. All patients underwent hepatic resection: 1 right hepatic lobectomy and 4 partial resections for tumors on the right lobe, and 1 left lobectomy and 1 left lateral segmentectomy for tumors on the left lobe. There was no surgical death, but 1 patient had a postoperative complication: multiple stress ulcers on the stomach and ileum. The pathologic diagnosis was cavernous hemangioma in all cases. In the long-term follow-up, there was no recurrence of preoperative symptoms in any patient.
Adult
;
Child
;
Female
;
Hemangioma, Cavernous/*surgery
;
Humans
;
Ileal Diseases/etiology
;
Liver Neoplasms/*surgery
;
Male
;
Middle Aged
;
Postoperative Complications/etiology
;
Prognosis
;
Stomach Ulcer/etiology
;
Stress, Physiological/etiology
;
Ulcer/etiology
4.Thrombolysoangioplasty in chronic, long segmental occlusive arterial disease.
Tae Woong CHUNG ; Jae Kyu KIM ; Byung Kwan KOH ; Jin Yup KIM ; Jeoung Jin SEO ; Hyeoung Keun KANG
Journal of the Korean Radiological Society 1993;29(5):954-960
From July 1988 to September 1992, we experienced 15 cases of thrombolysoangioplasty (TLA) at Chonnam University Hospital. Among 15 cases, 5 had claudication (Clinical stage II according to Modified Fontaine Classification), pain at rest (III), and gangrene(IV). Duration of symptoms was 1-7 months except patients of clinical stage IV unable to guess occlusion age. The occlusion length was 5-10cm in 8 cases, 10-20cm in 4 cases, and above 30cm in 2 cases. In all cases, thromolytic therapy was performed with intraarterial urokinase infusion. The total amount of urokinase ranged from 300,000 IU to 2,000,000 IU and infusion time ranged from 2 to 50 hours except three cases infused bolus dose only. Complete successful TLA was defined as technical (less than 50% of residual stenosis) and clinical success. Partial success was defined as technical success but clinical failure. Follow-up angiography could be performed in 8 cases. Overall initial success rate was 86.6% (13/15). Among them. Complete success was in 11 cases and partial success was in 2 cases. Recurrence of disease was not noted on all cases(n=8). Severe complications, such as hemorrhage, did not occurred. TLA was considered to be effective and safe way to recanalized chronic long artery occlusion in lower extremity.
Angiography
;
Arteries
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Jeollanam-do
;
Lower Extremity
;
Recurrence
;
Urokinase-Type Plasminogen Activator
5.Detection of A-V shunting with CO2-DSA in hepatocellular carcinoma.
Byung Kwan KOH ; Jae Kyu KIM ; Jin Yeob KIM ; Tae Woong CHUNG ; Jeong Jin SEO ; Heoung Keun KANG
Journal of the Korean Radiological Society 1993;29(5):1015-1019
The presence of A-V shunting in hepatocellular carcinoma is an important factor for deciding the prognosis and in the management with transarterial chemoembolization. Twenty-four patients with hepatocellular carcinoma performed with CO2-DSA and iodinated-DSA were reviewed for the evaluation of visibility of A-V shunting. It was classified by the visibility into clearly visible, faintly visible and invisible. Also the authors evaluated neovascularity and tumor staining. And we checked side effects after the injection of CO2 gas during CO2-DSA. A-V shunting was noted in 19 cases(63%), which were clearly visible in 15 of 19 cases(79%) on CO2-DSA and in 7 of 19 cases(37%) on iodinated-DSA. In 3 cases, A-V shunting was noted only on CO2-DSA. CO2-DSA(17%)was inferior to iodinated-DSA in detection of neovasculaity and tumor staining. Side effects from CO2-DSA were abdominal pain(1 case) and chest discomfort(1 case) but improved within several minutes. In conclusion, CO2-DSA is a sensitive and effective method for the detection of A-V shunting in hepatoma.
Carcinoma, Hepatocellular*
;
Humans
;
Methods
;
Prognosis
;
Thorax
6.Clinical study of pancreatic cancer.
Hee Duck KIM ; Byung Ki LEE ; Kyung Hyun CHOI ; Sung Do LEE ; Jae Kwan SEO ; Young Hoon PARK
Journal of the Korean Surgical Society 1992;42(2):179-189
No abstract available.
Pancreatic Neoplasms*
7.The efficacy and safety of irbesartan in treating essential hypertension.
Cheol EOM ; Joon Han SHIN ; Han Soo KIM ; Jong Hun KO ; Byung Il CHOI ; Eui Soo HONG ; Jeong Kee SEO ; Jun KWAN ; Keum Soo PARK ; Woo Hyung LEE
Korean Circulation Journal 2000;30(3):318-325
BACKGROUND: Irbersatan, an orally active antihypertensive agent, effectively reduce blood pressure by directly blocking angiotensin II receptors without any significant adverse effects. The purpose of this study is to evaluate the efficacy and safety of irbesartan in patients with mild to moderate hypertension. METHODS: This study enrolled 83 patients who had diastolic pressure above 95 mmHg and below 110 mmHg on two measurements. Sixty eight patients were administered 150mg of irbesartan, an angiotensin II receptor blocker, daily for four weeks as an initial dosage. If the sitting diastolic pressure was equal to or greater than 90 mmHg after a 4 week treatment period, the dosage was doubled until the end of 8 weeks. Baseline pressures, antihypertensive effect, side effects, laboratory findings were compared before and after treatment. RESULTS: Fourty two patients out of 53 patients having completed this study showed decreased blood pressure equal to or more than 5 mmHg of the sitting diastolic pressure (response rate=79%). Twenty one patients out of 53 patients showed normalized blood pressure below 90 mmHg of the sitting diastolic pressure (normalization rate=40%). The extent of decrease in diastolic and systolic blood pressure after eight week treatment was an average 11.7+/-10.1 mmHg and 16.3+/-18.9 mmHg, respectively (p<0.05). Nineteen ontoward side effects was observed in 17 patients out of 68 patients with medication (frequency of ontoward effects=25%). Only one case with headache was considered to be related to the medication. Abnormal laboratory findings were observed in eight patients, and only one case with elevation of bilirubin and ALT levels was considered to be related to the medication. CONCLUSION: In conclusion, irbesartan is a safe and effective antihypertensive drug in patients with mild to moderate hypertension with tolerable side effects.
Bilirubin
;
Blood Pressure
;
Headache
;
Humans
;
Hypertension*
;
Receptors, Angiotensin
8.Expression of iNOS mRNA and Effect of NO on IL-3 Production in Dendritic Epidermal T Cell.
Seong Jun SEO ; Byung Kwan RO ; Bong Ju SHIN ; Chang Kwun HONG
Korean Journal of Dermatology 2002;40(10):1225-1234
BACKGROUND: Stimulation of iNOS with subsequent release of NO may play a critical role in pathophysiology or host defense reactions. NO can be produced by several cell types that reside in the skin. Increasing data indicate that NO serves as an autocrine and paracrine mediators in diverse and complex cellular processes throughout the skin. OBJECTIVE: The aim of the present study was to elucidate whether dendritic epidermal T cell can express iNOS and generate NO. In addition to that, this study was to evaluate whether NO may play a certain role in IL-3 production of activated dendritic epidermal T cell. METHODS: iNOS mRNA was isolated by RT-PCR at 12, 24, 48, 72 hours after stimulation and NO was measured by the Griess method. IL-3 levels were assessed with a basic cell proliferation bioassay system using supernatants from T cells cultured in 96 well plates. Units of IL-3 in the culture supernatants were measured using the cytokine-dependent DA-1 cell line. RESULTS: 1. NO generation was increased by UVB 100mJ/cm2 irradiation, concanavalin-A and lipopolysaccharide stimulation in dendritic epidermal T cell. The amount of NO was highest in LPS. 2. The expression of iNOS was increased by UVB 100mJ/cm2 irradiation, concanavalin-A and lipopolysaccharide stimulation in dendritic epidermal T cell. Induction of iNOS revealed peak at 72 hours after concanavalin-A and lipopolysaccharide stimulation, but in UVB irradiation that of iNOS was not observed except at 48 hours. 3. NO may play a role in IL-3 production in activated dendritic epidermal T cell. CONCLUSION: The results strongly suggest that the expression of iNOS and NO production in dendritic epidermal T cell are upregulated by UVB, concanavalin-A and lipopolysaccharide, and NO may play a role as mediator in IL-3 production of activated dendritic epidermal T Cell as autocrine manner.
Biological Assay
;
Cell Line
;
Cell Proliferation
;
Interleukin-3*
;
RNA, Messenger*
;
Skin
;
T-Lymphocytes
9.Electrophysiologic Properties of Aberrant Ventricular Conduction Induced by Atrial Extrastimulation.
Jae Kwan SONG ; Woo Seung LEE ; Eun Seok JEON ; Cheol Ho KIM ; Byung Hee OH ; Young Bae PARK ; Youn Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1987;17(4):601-614
In order to determine the electrophysiologic properties of aberrant ventricular conduction we analyzed the electrophysiologic studies done for various reasons in SNUH(1983.3 -1987.8). All patients did not have underlying heart disease and were in sinus rhythm with normal PR intervals & no intraventricular conduction delay at the time of study. The patients of preexcitation syndrome were excluded. Only aberrant ventricular conduction induced by premature atrial stimulation at the high right atrium or(HRA) during sinus rhythm or HRA pacing was analyzed. 1) Aberrant ventricular conuction was induced by premature atrial extrastimulation in 34 subjects of 156 cases reviewed(21.8%). The patients were 16 to 70 years old(sixteen males and eighteen females). 2) The longest atrial coupling(A1S2) interval resulting in aberrant ventricular conduction approximated 45%(600-280) of the basic cycle length(450-1550 msec). 3) As a prerequisite for aberrant ventricular conduction, the functional refractory period(FRP) of the AV node should be less than the relative refractory period(RRP) of the His Purkinje System and the most important determinant of aberrant ventricular conduction by atrial extreastimulation was resultant H1H2 interval, which should be between RRP and effective refractory period(ERP) of HPS. 4) There was good linear correlation between the basic cycle length(BCL) and RRP of the HPS(RRP=0.247xBCL+247.048, r=0.885, p-value<0.001). 5) 155 different configurations of aberrant ventricular conduction were recorded during atrial extrastimulation till atrial ERP. The pattern frequencies were as follows : left anterior hemiblock, 6(3.9%) ; right bundle brach block, 92(59.4%) ; left bundle branch block, 28(18.0%) ; left anterior hemiblock combined with right bundle branch block, 14(9.0%) ; left posterior hemiblock combined with right bundle branch block, 9(5.8%) ; unclassified intraventricular conduction disturbances, 6(3.9%). 6) As the atrial coupling intervals were further shortened, aberrant conduction persisted up to the point of atrial ERP at 19/41 BCL's(46.3%). Other patterns of atrioventricular conduction were as follows : atrio-His block, 7(17.1%) ; His-ventricular block, 6(14.6%) ; normal conduction due to prolonged A2H2, 9(22.0%). But there was no statistical significance between the pattern of A-V conduction and the longest S2H2 & H2V2 intervals during VAB (p-value=0.235>0.050). In conclusion, atrial extrastimulation which is routinely done during clinical EPS is an effective method to induce aberrant ventricular conduction and to study the electrophysiologic characteristics of atrioventricular conduction. Further study with recording of bundle branch electrogram, after infusion of cardioactive drugs and pacing of HRA at fixed rate should be done to determine the electrophysiologic properties of VAB more completely.
Atrioventricular Node
;
Bundle-Branch Block
;
Heart Atria
;
Heart Diseases
;
Humans
;
Male
;
Pre-Excitation Syndromes
10.A Study of Individual Variation of Responsiveness to Vagal Stimulation in Children (Nonspectral Analysis).
Mi Ryoung KIM ; Seong Hwan KIM ; Young Keun OH ; Byung Kiu PARK ; Moon Hong DOH ; Bong Kwan SEO ; Myung Kul YUM
Korean Circulation Journal 1992;22(1):96-104
BACKGROUND: It is well known that there is wide individual variation of responsiveness when parasympathetic nervous system is stimulated physiologically, pathologically, and therapeutically. But no appropriate explanation is present for that yet. So the purpose of this study is to verify individual diversity of vagal tone during resting state and after vagal stimulation and to find factor that may significantly contribute to it. METHOD: We serially measured variation of heart period(VHP : sec) which had been known to be an accurate index of cardiac parasympathetic tone during resting state(VHPb) and after vagal stimulation by ice water application to face(VHPv). And we analyzed correlation between VHPb, VHPv and ratio of VHPv to VHPb(ratio). RESULT: There was wide variation of vagal tone both in resting state (VHPb : 0.025-0.161) and after vagal stimulation (VHPv : 0.087-0.661). VHPb could be classified into 3 groups according to stem and leaf distribution(group A : VHPb could be classified into 3 groups according to stem and leaf distribution(group A : VHPb<0.07, B : 0.07-0.1, C : >0.1). The low VHPb group A showed dramatic increase in vagal tone after vagal stimulation (ratio 2.21-20.24 mean 7.7), on the other hand high VHPb group C did not (ratio 0.80-2.55 mean 1.39). There ws also a significant negative correlation between VHPb and ratio (r=0.69, p<0.001). CONCLUSION: These results suggest that there is wide individual diversity of responsiveness to vagal stimulation and magnitude of vagal tone in resting state is an important factor to determine the responsiveness to vagal stimulation.
Child*
;
Hand
;
Heart
;
Humans
;
Ice
;
Parasympathetic Nervous System
;
Water