1.A study on the occlusal contact of the subjects with temporomandibular joint sound.
Kwang Hyun YOON ; Dong Wan KANG
The Journal of Korean Academy of Prosthodontics 1993;31(1):51-61
No abstract available.
Temporomandibular Joint*
2.Interleukin-1 beta , -2, -6 Production, Serum Concentration and Hypothalamic-Pituitary-Adrenal Axis in Patients with Major Depression.
Journal of Korean Neuropsychiatric Association 1998;37(3):537-547
The present study was carried out in order to investigate the relationship between immune function and the activity of hypothalamic-pituitary-adrenal(HPA) axis in patients with major depression. The subjects were 16 female major depressives and 16 female healthy controls. We measured mitogen-induced production of IL-1 beta, IL-2, IL-6 and serum level of IL-1 beta, IL-2, IL-6 and basal plasma cortisol levels at 8 00 a.m. We measured post-DST(dexamethasone suppression test) cortisol levels in 16 major depressives. The result were as follows : 1) Basal cortisol level was significantly higher in the patients with major depression than in the healthy controls(14.4+/-4.6 microgram/dl, 10.1+/-5.2microgram /dl, respectively, p<0.05). 2) IL-2 production was significantly lower in the patients with major depression than in the healthy controls(1747.3+/-387.9 pg/ml, 2520.2+/-884.1 pg/ml, respectively, p<0.05). There were no significant differences in IL-1 beta and IL-6 production between the patients with major depression and the healthy controls. 3) Serum level of IL-2 was detectable in 12 of 16 patients with major depression and in 10 of 16 healthy controls. There was no significant difference in serum level of IL-2 between two groups. Serum level of IL-1 beta was detectable in 3 of 16 patients with major depression and of 16 healthy controls. We could not detect serum level of IL-6 in both groups. 4) There was significant negative correlation between IL-2 production and post-DST cortisol level(r= -0.89) in the 16 patients with major depression. There was significant negative correlation between serum level of IL-2 and post-DST cortisol level(r= -0.97) in the 12 patients with major depression. There was significant negative correlation between serum level of IL-2 and basal cortisol level(r= -0.65) in the 12 patients with major depression. But there was no significant correlation between IL-2 production and basal cortisol level in the 16 patients with major depression. These findings suggest that immune function is decreased in major depression and the decreased immune function is highly related to the hyperactivity of the HPA axis.
Axis, Cervical Vertebra*
;
Depression*
;
Female
;
Humans
;
Hydrocortisone
;
Interleukin-1*
;
Interleukin-1beta*
;
Interleukin-2
;
Interleukin-6
;
Interleukins
;
Plasma
4.A Clinical Study of the Tibial Plafond Fractures
Byung Hyun JUNG ; Chil Soo KWON ; Kwang Yoon SEO
The Journal of the Korean Orthopaedic Association 1988;23(1):49-56
The tibial plafond fractures result from an axial compression snd rotational forces causing variable degrees of metaphyseal disruption, articular damage, and malleolar displscement. It is relatively uncommon but a most difficult fracture to manage. It has been treated in a number of manners, but the best results have been occurred when stable internal fixation is accomplished using plates and screws. Basic steps in reconstruction are restoration of anatomic length of the fibula with plate fixation, reconstruction of the tibial articular surface, cancellous bone grafting of the metaphyseal defect and buttress plating of the distal tibia. The suthor analysed the 20 cases of the tibial plafond frsctures in 17 patients, which were trested at the Department of Orthopedic Surgery, Paik Hospital, Inje Medical College from Jsnuary 1983 to March 1987. The longest durstion of followup was 2 years and 4 months and shortest one was 6 months, and the aversge was one year. The results were as follows : 1. Among the 17 patients, male were 16 and female was one. 2. The major causes of injury were a fall from a height. 3. The most frequent type of fracture was type C by Ruedi and Allgower classification. 4. Regardless of the method of trestment the type A and B were in good and fair result, but the type C were fair in 4 cases and poor in 8 cases. There were 7 cases of snkle fusion in poor group. 5. It is important to remind the basic steps in reconstruction and applied in sn individual csse especially in type C. If anatomic reconstruction of the joint surface can be restored and stable fixation achieved, esrly motion of the ankle joint is made possible. This early motion reduces stiffness of the ankle and win yeild the most sstisfying result. But the anatomic reduction of ank1 joint is difficult to be obtained in each case especially in type C and may consider an ankle fusion.
Ankle
;
Ankle Joint
;
Bone Transplantation
;
Classification
;
Clinical Study
;
Female
;
Fibula
;
Follow-Up Studies
;
Humans
;
Joints
;
Male
;
Methods
;
Orthopedics
;
Tibia
5.A Clinical Study of the Flexor Tendon Injures in the Hand
Kwang Hoe KIM ; Hyun Kee CHUNG ; Kwang Suk LEE ; Won Koo YOON
The Journal of the Korean Orthopaedic Association 1988;23(1):255-267
Many injuries of the hand have been occured in these days because of frequent industrial hazards and frequent handling of tools in modern civilizing life. A voluminous amount of literature has been recently concerned with many problems and questions posed by tendon surgery. Many investigations have been devoted to discussion of suture materials, tendon suturing, grafting, healing, rate of healing, nutrition and related clinical and laboratory endeavors. Because of these efforts, the designation of Zone II as“no man's land” is no longer significant and should be called “skilled man's land”. With regard to to secondary reconstructive surgery, in cases without much scarring and few associated lesions, we routinely select the one-stage graft and use early motion in the postoperative programs. This paper aimed to review our experience with 215 patients with flexor tendon injuries in hand who were treated with primary repair or tendon graft with average follow up of 8.5 months from June, 1973 to May, 1987 and the following results were obtained. 1. The most frequent site of injury was Zone V. 2. The over all end result of primary repair was satisfactory in 86.5% by White and Kleinert criteria. 3. The over all end result of tendon graft in Zone Il was satisfactory in 51.0% by White and Kleinert criteria. 4. In Zone lI, primary repair obtained satisfactory result in 36.4% but the tendon graft obtained satisfactory result in 51.0%. 5. In tendon graft, the preoperative stste was supposed to have close relation to postoperative result and the duration from injury to graft was supposed to have little relation to postoperative results. 6. In primary repair, the cases using Bunnells suture technique obtained satisfactory result in 85.1% and the cases using modified Kesslers suture technique obtained satisfactory result in 91.2%.
Cicatrix
;
Clinical Study
;
Follow-Up Studies
;
Hand
;
Humans
;
Suture Techniques
;
Sutures
;
Tendon Injuries
;
Tendons
;
Transplants
6.Three cases of cholesterol granuloma presenting as intratympanic mass.
Seong Won YOON ; Hyuck Soo LEE ; Tae Hyun YOON ; Kwang Chol CHU
Korean Journal of Otolaryngology - Head and Neck Surgery 1993;36(3):535-540
No abstract available.
Cholesterol*
;
Granuloma*
7.CHANGES OF REFERRED SYMPTOMA FOLLOWING SURGICAL TREATMENT IN PATIENTS DIAGNOSED AS TMJ INTERNAL DERANGEMENT
Hyung Gon KIM ; Kwang Ho PARK ; Jong Ki HUH ; Hyun Joong YOON ; Ki Young KIM ; Kwang Hyun NAM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1999;21(1):48-53
Female
;
Follow-Up Studies
;
Headache
;
Humans
;
Incidence
;
Neck
;
Neck Pain
;
Shoulder Pain
;
Temporomandibular Joint
8.Arch-First Technique in Aortic Arch Aneurysm.
Kwang Hoon PARK ; Seok Cheol CHOI ; Kang Joo CHOI ; Yang Haeng LEE ; Yoon Ho HWANG ; Kwang Hyun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(8):676-680
To minimize the period of brain ischemia and the potential for neurologic damage during aortic arch replacement, we used the arch-first technique. First case was a 28-year-old female with extensive aneurysm involving ascending, arch and descending thoracic aorta. Exposure was obtained via a bilateral via a bilateral thoracotomy (clamshell incision) in the anterior 4th right and 3rd left intercostal space with oblique sternotomy. To prepare for arch perfusion, the side-arm graft(10mm) was anastomosed to the aortic graft, opposite the site of the planned anastomosis to the arch vessels. After completing the arch anastomosis under total circulatory arrest(37min) and retrograde cerebral perfusion(12min), aortic graft was clamped on either side and the arch was perfused via side-arm graft for 36min. When distal aortic anastomosis was finished, distal clamp of aortic graft was released and arch vessels were perfused via common femoral artery, and the proximal aortic anastomosis was accomplished. The patient was discharged with no event. Second case was a 48-year-old male with extensive aneurysm involving ascending, arch, and aortic regurgitaiton(grade III/IV). This case was also done using the clamshell incision. Aortic valve replacement was done by valved-conduit(Vascutek 30mm), both coronary artery anastomosis using Cabrol's procedure. Last operation procedure was the same as the 1st case.
Adult
;
Aneurysm*
;
Aorta, Thoracic*
;
Aortic Valve
;
Brain Ischemia
;
Coronary Vessels
;
Female
;
Femoral Artery
;
Humans
;
Male
;
Middle Aged
;
Perfusion
;
Sternotomy
;
Thoracotomy
;
Transplants
9.Effects of sodium vanadate on contractility of vascular smooth muscle.
Young Kwang YOON ; Chang Hyun MOON ; Young Ho LEE ; Bok Soon KANG ; Doo Hee KANG
Korean Circulation Journal 1993;23(1):104-116
The present study was intended to examine the effect of sodium vanadate on contractility of vascular smooth muscle. Aortic ring preparations were made from the rabbit thoracic aorta and endothelial cells were removed from the ring. The contractility of the aortic ring was measured under various conditions. The results were summarized as follows; 1) Sodium vanadate induced contraction of vascular smooth muscle in a dose-dependent fashion. 2) The contractile effects were not blocked by treatments with adrenergic blocking agent(phentolamine) and indomethacin, indicating the direct action of the drug on vascular smooth muscle. 3) In the presence of ouabain, Na(+)-K(+)-ATPase inhibitor, sodium vanadate still increased the contractility of vascular smooth muscle. 4) Treatment with 4.4'-diisothiocyanostilbene-2.2'-disulfonic acid(DIDS) blocked completely the contractile effects of sodium vanadate. 5) In the presence of verapamil, lanthanum and ryanodine, the contractility of the vascular smooth muscle by sodium vanadate was decreased. From the above results. it was suggested that sodium vanadate acts directly on vascular smooth muscle and causes contraction. It was probably due to inhibition of Ca(++)-ATPase in plasma membrane as well as increasing the release of Ca(++) from sarcoplasmic reticulum and Ca(++) influx across the plasma membrane, but not inhibition of Na(+)-K(+)-ATPase.
Aorta, Thoracic
;
Cell Membrane
;
Endothelial Cells
;
Indomethacin
;
Lanthanum
;
Muscle, Smooth, Vascular*
;
Ouabain
;
Ryanodine
;
Sarcoplasmic Reticulum
;
Sodium*
;
Vanadates*
;
Verapamil
10.Congenital diaphragmatic eventration in neonates: A report of 3 cases.
Kang Ju CHOI ; Ji Yoon RYOO ; Yang Haeng LEE ; Youn Ho HWANG ; Kwang Hyun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(9):730-734
No abstract available.
Diaphragmatic Eventration*
;
Humans
;
Infant, Newborn*