1.The Change of Heart Rate Variability in Anxiety Disorder after Given Physical or Psychological Stress.
Min Kyung CHO ; Doo Heum PARK ; Jaehak YU ; Seung Ho RYU ; Ji Hyeon HA
Sleep Medicine and Psychophysiology 2014;21(2):69-73
OBJECTIVES: This study was designed to assess the change of heart rate variability (HRV) at resting, upright, and psychological stress in anxiety disorder patients. METHODS: HRV was measured at resting, upright, and psychological stress states in 60 anxiety disorder patients. We used visual analogue scale (VAS) score to assess tension and stress severity. Beck depression inventory (BDI) and state trait anxiety inventories I and II (STAI-I and II) were used to assess depression and anxiety severity. Differences between HRV indices were evaluated using paired t-tests. Gender difference analysis was accomplished with ANCOVA. RESULTS: SDNN (Standard deviation of normal RR intervals) and low frequency/high frequency (LF/HF) were significantly increased, while NN50, pNN50, and normalized HF (nHF) were significantly decreased in the upright position compared to resting state (p < 0.01). SDNN, root mean square of the differences of successive normal to normal intervals, and LF/HF were significantly increased, while nHF was significantly decreased in the psychological stress state compared to resting state (p < 0.01). SDNN, NN50, pNN50 were significantly lower in upright position compared to psychological stress and nVLF, nLF, nHF, and LF/HF showed no significant differences between them. CONCLUSION: The LF/HF ratio was significantly increased after both physical and psychological stress in anxiety disorder, but did not show a significant difference between these two stresses. Significant differences of SDNN, NN50, and pNN50 without any differences of nVLF, nLF, nHF, and LF/HF between two stresses might suggest that frequency domain analysis is more specific than time domain analysis.
Anxiety
;
Anxiety Disorders*
;
Autonomic Nervous System
;
Depression
;
Equipment and Supplies
;
Heart Rate*
;
Humans
;
Stress, Psychological*
2.Comparison between Measured and Calculated Length of Side Branch Ostium in Coronary Bifurcation Lesions with Intravascular Ultrasound.
Hyeon Min RYU ; Byeong Keuk KIM ; Jung Sun KIM ; Young Guk KO ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2012;53(4):680-684
PURPOSE: Accurate evaluation of side branch (SB) ostium could be critical to the treatment of bifurcation lesions. We compared measured and calculated values of side branch ostial length (SBOL) in coronary bifurcation lesions with intravascular ultrasound (IVUS). MATERIALS AND METHODS: Pre-intervention and post-intervention IVUS was performed in 113 patients who underwent stent implantation of bifurcation lesions. For the IVUS longitudinal reconstruction of the bifurcation lesions, SBOL, SB diameter, and the angle between the distal portion of the main vessel (MV) and SB were directly measured. In addition, SBOL was calculated as: SB diameter/sin (angle between distal MV and SB). The relationship between measured and calculated SBOL was then evaluated. RESULTS: The angled between the distal MV and SB were 57.3+/-12.4degrees at pre-intervention and 59.4+/-12.6degrees at post-intervention. The mean measured and calculated SBOL values were 2.91+/-0.86 mm and 3.06+/-0.77 mm at pre-intervention and 2.79+/-0.82 mm and 2.92+/-0.69 mm at post-intervention, respectively. Differences between measured and calculated SBOL were 0.15+/-0.44 mm at pre-intervention and 0.13+/-0.41 mm at post-intervention. We found that calculated SBOL was correlated with measured SBOL (pre-intervention r=0.863, p<0.001; post-intervention r=0.868, p<0.001). CONCLUSION: There was a good correlation between measured and calculated SBOLs of the bifurcation lesions in IVUS longitudinal reconstruction. SBOL in the bifurcation lesions can therefore be estimated using the SB diameter and the angle between distal MV and SB.
Aged
;
Angioplasty, Balloon, Coronary
;
Coronary Angiography
;
Coronary Artery Disease/surgery/*ultrasonography
;
Coronary Vessels/*ultrasonography
;
Female
;
Humans
;
Male
;
Middle Aged
;
Ultrasonography, Interventional
3.Clinical Outcomes of Infrapopliteal Angioplasty in Patients With Critical Limb Ischemia.
Hyeon Min RYU ; Jung Sun KIM ; Young Guk KO ; Myeong Ki HONG ; Yangsoo JANG ; Donghoon CHOI
Korean Circulation Journal 2012;42(4):259-265
BACKGROUND AND OBJECTIVES: With recent advances in equipment and techniques, infrapopliteal angioplasty has shown results that are comparable to those of surgical bypass in patients with critical limb ischemia (CLI). In this study, we evaluated the efficacy and the feasibility of infrapopliteal angioplasty in patients with CLI. SUBJECTS AND METHODS: Between March 2002 and May 2008, infrapopliteal angioplasty was performed on 118 limbs of 101 patients (79 males; mean age 66 years) with CLI (Rutherford category 4, 5 or 6). Freedom from reintervention, limb salvage, and overall survival were analyzed. RESULTS: The median follow-up duration was 30 months. Initial technical and clinical success rates were 69.5% and 83.1%, respectively. No major complication requiring surgical intervention developed after angioplasty. Among 82 limbs with initial technical success, the rate of freedom from any reintervention at 2 years was 70.7% and that from limb salvage was 97.6%. Young age and Rutherford category 6 at initial presentation were independent predictors associated with poor 2 year primary patency in these patients with CLI. Overall survival at 1 year was 86.4% and that at 2 years 76.3%. A history of cerebrovascular accident was an independent predictor associated with poor 2 year survival in these patients. CONCLUSION: Infrapopliteal angioplasty as a primary choice of treatment in CLI patients showed favorable clinical outcomes and feasibility.
Angioplasty
;
Extremities
;
Follow-Up Studies
;
Freedom
;
Humans
;
Ischemia
;
Limb Salvage
;
Stroke
;
Tibial Arteries
4.Outcomes of open versus closed treatment in the management of mandibular subcondylar fractures.
Seong Yong KIM ; Jae Young RYU ; Jin Yong CHO ; Hyeon Min KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2014;40(6):297-300
OBJECTIVES: To compare the clinical and radiological outcomes after closed reduction (CR) and open reduction and internal fixation (ORIF) in the management of subcondylar fractures. MATERIALS AND METHODS: Forty-eight patients presenting with subcondylar fracture between January 2010 and March 2013 were evaluated retrospectively. Fifteen patients were treated with CR and 33 patients with ORIF. The clinical and radiologic parameters were evaluated during follow-up (mean, 7.06 months; range, 3 to 36 months). RESULTS: In the CR group, no patients had any problems with regard to the clinical parameters. The average period of maxillomandibular fixation (MMF) was 5.47 days. The preoperative average tangential angulation of the fractured fragment was 3.67degrees, and loss of ramus height was 2.44 mm. In the ORIF group, no clinical problems were observed, and the average period of MMF was 6.33 days. The preoperative average tangential angulation of the subcondylar fragment was 8.66degrees, and loss of ramus height was 3.61 mm. CONCLUSION: CR provided satisfactory clinical results, though ORIF provided more accurate reduction of the fractured fragment. So there is no distinct displacement of fractured fragment, CR should be selected than ORIF because of no need for surgery.
Follow-Up Studies
;
Humans
;
Jaw Fixation Techniques
;
Retrospective Studies
5.A simple method of intraoperative intubation tube change.
Jin Yong CHO ; Hyeon Min KIM ; Jae Young RYU
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2014;40(5):250-252
Nasotracheal intubation should be performed in patients with jaw fractures because maxillomandibular fixation is required. However, when there are concomitant fractures of the nose and facial bones, an intubation tube positioned at the nose makes it difficult to perform an intricate surgery. In order to overcome these problems, a variety of ways to change the position of the tube have been introduced. We describe a simple technique of switching the tube from a nasal to oral position, which was easily executed in a patient with concomitant nasal and mandibular fractures, accompanied by a literature review.
Airway Management
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Facial Bones
;
Humans
;
Intubation*
;
Jaw Fixation Techniques
;
Jaw Fractures
;
Mandibular Fractures
;
Nose
6.Cavernous sinus thrombosis progression from trismus.
Jin Yong CHO ; Hyeon Min KIM ; Jae Young RYU
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2015;41(1):43-47
In the Department of Oral and Maxillofacial Surgery, patients with trismus can be easily identified. If the cause of trismus is infection of the masticatory space near the pterygoid plexus, the possibility of cavernous sinus thrombosis should be considered. We report the case of a patient who presented with limited mouth opening and progressed to cavernous sinus thrombosis, along with a review of the relevant literature.
Cavernous Sinus Thrombosis*
;
Focal Infection, Dental
;
Humans
;
Mouth
;
Surgery, Oral
;
Trismus*
7.Immunophenotypic Analysis of Long-term Culture-Initiating Cells in Long-term Liquid Culture.
Kyung Ha RYU ; Ki Woong SUNG ; Hyang Min CHEONG ; Hyung Soo CHOI ; Hyeon Jin PARK ; Hyo Seop AHN
Korean Journal of Pediatric Hematology-Oncology 1998;5(1):130-137
Purpose: Long-term culture- initiating cells(LTC-IC) are stem cells that have the capacities of long-term engraftment and helping to establish hematopoietic microenvironment. For evaluation of the LTC-IC, we measured the counts and function with multidimentional flowcytometry in long-term culture media. METHODS: Samples were obtained from umbilical cord blood, leukapheresis products and bone marrow(BM). LTC-IC were counted with flowcytometric analysis using anti- CD34, anti-CD38, and anti-HLA-DR antibodies at 0, 5, and 8 weeks. Cell adhesion molecule related with stem cell were evaluated with flowcytometric analysis also using anti-VCAM-1(CD106) and anti-VLA-4(CD49d) at 0 and 8 weeks. RESULTS: The proportion of CD34+/CD38- cell from fractionated mononuclear cells at 0 week were 0.46%, 0.044%, and 0.038% for BM, leukapheresis products, and umbilical cord blood respectively and then rapidly decreased at 5 weeks, but still persisted at 8 weeks in all three groups. The proportion of CD34+/HLA-DR- cells was the same tendency to CD34+/CD38-. VCAM+ expression rate from fractionated CD34+ cells at 0 and 8 weeks were 67.3% and 40.2% for BM and 64.1% 44.2% for umbilical cord blood but it was very low 31.2% and 5.1% for leukapheresis products. VLA-4+ expression rate for fractionated CD34+ cells at 0 and 8 weeks were similar tendency to VCAM+ cells. CONCLUSION: This study suggest that the count of LTC-IC decreased with time but still persisted until 8 weeks. Umbilical cord blood including BM help to establish the hematopoietic microenvironments.
Antibodies
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Cell Adhesion
;
Culture Media
;
Fetal Blood
;
Leukapheresis
;
Stem Cells
8.Sympathetic Skin Response in Patients with Palmar Hyperhidrosis.
Kang Hee CHO ; Jae Wook RYU ; Yeo Sam YOON ; Jae Hyeon YU ; Min Kyun SOHN ; Bong Ok KIM
Journal of the Korean Academy of Rehabilitation Medicine 1999;23(4):799-804
OBJECTIVE: To observe the change of sympathetic skin response (SSR) before and after sympathectomy in patients with idiopathic palmar hyperhidrosis and to find the usefulness of SSR for assessment of the effects of sympathectomy. METHOD: The SSR was measured in 20 patients with palmar hyperhidrosis and 20 normal control group. Ten days after thoracoscopic sympathectomy, SSR was also measured. A 50~150 V stimulus was applied over the median nerve and SSR was recorded on bilateral palms and soles with Viking IV (Nicolet Biomedical Ins., U.S.A.). Patient's satisfaction with operation was assessed by questionnaire. RESULTS: Absent or unstable SSR recordings rate was increased and amplitudes of SSR were significantly decreased in patients with palmar hyperhidrosis compared with control group. After sympathectomy, SSR was absent in all cases on bilateral palms and these results were correlated with clinical improvment. All patients who had undergone surgery showed significant clinical improvement for palmar hyperhidrosis and about 75% of the cases were found to have compensatory sweating from other site of the body. CONCLUSION: Abnormal sympathetic nerve system responses were observed in patients with palmar hyperhidrosis. SSR recordings and clinical manifestations were influenced by sysmpathectomy.
Humans
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Hyperhidrosis*
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Median Nerve
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Surveys and Questionnaires
;
Skin*
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Sweat
;
Sweating
;
Sympathectomy
9.The Effects of Social Participation Attitude, Social Support, and Empowerment on Ageism Experience in the Elderly Using Welfare Centers
Doo Ree KIM ; Ju Hui RYU ; Hyo Won MOON ; Su Hyeon MIN ; In Young JEONG ; Shin Suk PARK ; Gi Ran LEE
Journal of Korean Academy of Community Health Nursing 2020;31(3):300-309
Purpose:
This study was conducted to investigate the factors affecting the discrimination of the elderly using welfare centers.
Methods:
A cross-sectional study was conducted with 217 elderly people from a welfare center in D city. Data were collected using a self-administered questionnaire survey consisting of ageism experience, social participation attitude, social support, and empowerment. For data analysis, descriptive statistics, t-test, one-way ANOVA, Pearson correlation coefficients, and multiple regression were performed using SPSS/WIN 21.0 program.
Results:
As a result of analyzing the correlations among the variables, the discrimination experience of the elderly showed negative correlations in social participation attitude and child relationship support. The factors affecting the discrimination experience of the elderly include gender, job, smartphone use, and child relationship support had a significant effect. The explanatory power of the discrimination experience of these factors was 15.4%.
Conclusion
This study found that gender, job, social support, and smartphone use were factors influencing the discrimination experience of the elderly. It is hoped that public relations and policy measures should be considered.
10.A Case of Complete Agenesis of the Dorsal Pancreas with Left Renal Agenesis and Absence of the Left Vertebral Pedicle in T12.
Ah Jeong RYU ; Jae Jun LEE ; Hyeon Jin MOON ; Seok Jae JEON ; Soon Hyeon PARK ; Jae Min LEE ; Kang Seo PARK
Korean Journal of Medicine 2012;83(2):249-253
Agenesis of the dorsal pancreas is a rare congenital anomaly that arises from the failure of the dorsal pancreatic bud of endodermal cells to form the body and tail of the pancreas and can manifest as diabetes. A 24-year-old man, who had been treated with insulin for 7 years, presented with epigastric pain, vomiting, and watery diarrhea. Abdominal computed tomography showed only the head of the pancreas without visualization of the pancreatic body and tail. Left renal agenesis and absence of the left vertebral pedicle in T12 were also observed. The duct of Santorini and the duct in the body and tail were not visible in magnetic resonance cholangiopancreatography. The associated anomalies reported here are very rare globally. We report a case of complete agenesis of the dorsal pancreas with multiple congenital abnormalities and diabetes mellitus.
Cholangiopancreatography, Magnetic Resonance
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Congenital Abnormalities
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Diabetes Mellitus
;
Diarrhea
;
Endoderm
;
Head
;
Humans
;
Insulin
;
Kidney
;
Kidney Diseases
;
Pancreas
;
Pancreatic Ducts
;
Vomiting
;
Young Adult