1.The marginal accuracy of temporary crown with different matrix.
Tae Hun JU ; Hye Won CHO ; Jin Keun DONG
The Journal of Korean Academy of Prosthodontics 1991;29(2):59-66
No abstract available.
Crowns*
2.Malignant Syndrome in Parkinson Disease Similar to Severe Infection.
Dong Hun LEE ; Jeong Mi MOON ; Yong Soo CHO
Korean Journal of Critical Care Medicine 2017;32(4):359-362
A 70-year-old woman with Parkinson disease was admitted to the emergency department with altered consciousness, fever and convulsive movements without experiencing withdrawal from antiparkinsonian medication. Six hours after the emergency department visit, the patient had a hyperpyrexia (>40℃) and a systolic blood pressure of 40 mmHg. There was no evidence of bacterial infection based on extensive workups. The patient was discharged without aggravation of Parkinson disease symptoms after treatment that included administration of dantrolene sodium, enforcement of continuous renal replacement therapy and cooling blankets. Malignant syndrome should be suspected if high fever occurs in Parkinson disease patients without evidence of a definitive infection.
Aged
;
Bacterial Infections
;
Blood Pressure
;
Consciousness
;
Dantrolene
;
Dehydration
;
Emergency Service, Hospital
;
Female
;
Fever
;
Humans
;
Parkinson Disease*
;
Renal Replacement Therapy
3.Distally-Based Sural Artery Flap.
Dong Gul LEE ; Dong Hun LEE ; Jung Hyung LEE ; Byung Chae CHO ; Bong Soo BAIK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(3):360-365
Reconstruction of soft tissue defect with exposure of the tendons and bone in the lower third of the leg and the heel represents a challenge to plastic surgeons. The sural artery flap is a fasciocutaneous flap supplied by the sural artery that accompanies the sural nerve and connects with a septocutaneous perforator of the peroneal artery via a suprafascial network of vessels. For the coverage of soft tissue defects, we operated on 10 patients using a distally-based sural artery flap. The sites of the soft tissue defect were the lower third of the leg in 7 cases and the heel in 3 cases. The size of flap varied from 3.5x4cm to 12x18cm. Nine of 10 flaps survived completely. One flap in which the sural nerve was preserved showed partial necrosis but healed spontaneously. Two flaps showed slightly venous congestion which disappeared after a few days. The advantages of the sural flap are a reliable blood supply, easy and quick elevation of the flap, preservation of the major artery and minimal donor site morbidity. The disadvantage of the flap is hypoesthesia at the lateral part of the foot. In conclusion, the distally-based sural artery flap can be used safely for soft tissues coverage in the lower third of the leg and the heel.
Arteries*
;
Foot
;
Heel
;
Humans
;
Hyperemia
;
Hypesthesia
;
Leg
;
Necrosis
;
Sural Nerve
;
Tendons
;
Tissue Donors
4.An Experimental Study on the Survival of Membranous Inlay Bone Graft on the Mandible.
Bong Soo BAIK ; Dong Pill SHIN ; Dong Hun LEE ; Jung Hyung LEE ; Byung Chae CHO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(4):677-682
Bone graft is an important procedure in craniomaxillofacial reconstruction and the success of reconstruction depends on the survival of the grafted bone. In this study, the survival of the membranous inlay bone graft on the mandibles of dogs was investigated with bone scan and histologic examination. The inlay bone graft, 1x2cm critical-sized bone, was completely separated from the lower border of the mandible of dogs and then refixed to the original site. Bone scan and histologic examination were done at 1,2,3 and 4 weeks postoperatively. The bone scan after 1 week showed radioisotope uptake on the margin of the grafted bone and the isotope count was 21% compared to the uptake of the normal bone. After 2 weeks, the radioisotope uptake in the grafted bone increased to 52% of normal bone uptake. After 3 and 4 weeks, the degree of isotope uptake was 111% and 124% respectively. Histological findings after 1 week showed the absence of osteoblastic activity and 6 viable blood vessels in one 200X magnified field, which was 25% compared to the vessels of the normal bone. After 2 weeks, osteoblastic activities were noted and the number of viable blood vessels totalled 15, which was 63% of the vessels of the normal bone. After 3 weeks, osteoblastic activities increased and the number of viable blood vessels totalled 21, which was 88% of the vessels of the normal bone. After 4 weeks, there were markedly increased osteoblastic activities with a total number of 23 vessels, which was 96% of the normal bone. In summary, the revascularization of the membranous inlay bone graft began from the first week after bone graft, and then it gradually increased. After 3 weeks, the revascularization had returned to a nearly normal value compared with the value of the near-by normal mandibular bone.
Animals
;
Blood Vessels
;
Dogs
;
Inlays*
;
Mandible*
;
Osteoblasts
;
Reference Values
;
Transplants*
5.CLINICAL OBSERVATIONS OF THE AXILLARY OSMIDROSIS.
Sung Tae CHO ; In Goo BAIK ; Kwi Whan WHANG ; Dong Hun LIM ; Dong Sup CHA
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(5):1207-1213
No abstract available.
6.A Cases of Primary Cutaneous Cryptococcosis.
Sik CHOI ; Seung Hun LEE ; Dong Sik BANG ; Baik Kee CHO ; Won Koo LEE
Korean Journal of Dermatology 1990;28(2):222-226
A 53-year-old man developed some erythematous follicular macules accompanied with tingling sensation on both shoulders. Histologic finding showed a dense lymphocytic infiltrate around the infundibular portion of the follicle, where separation of the dermoepidermal junction was seen. The insect, obtained from the skin lesion, was identified as a larva of an Ap- hid
Aphids
;
Cryptococcosis*
;
Humans
;
Insect Bites and Stings
;
Insects
;
Larva
;
Middle Aged
;
Sensation
;
Shoulder
;
Skin
7.Evaluation of Treatment Effect of Primary Hyperhidrosis using Skin Surface Hydrometer.
Nam Joon CHO ; Yung Jae LEE ; Yook LEW ; Dong Kun KIM ; Seung Hun LEE
Korean Journal of Dermatology 1994;32(3):369-375
BACKGROUND: Primary hyperhidrosis is the disease of production of exessive sweat which is mainly localized in palm, sole, and axilla, treatment of the disease is usually accomplished with topical 20% aluminum chloride solution, an iontophoretic device, and surgery(sympathectomy) being reserved for recalcitrant cases. OBJECTIVE: We have compared the therapeutic effects with each treatments for hyperhidrosis using a skin surface hydrometer. METHODS: Thirty six patients(11 ; male, 25 ; femlale) with primary hyperhidrosis were evaluated in this study. Nineteen patients used topical 20% aluminum chloride solution, 10 patients used iontophoretic device, and 7 patients in recalcitrant cases. had sympathectomy. We have measured the conductance on the stratum corneum of the palm and sole suing skin surface hydrometer before and after treatment every weeks for a month. the control group were composed of healthy 10 males and 2 females. RESULTS: 1) In the patients of primary hyperhidroisis the conductances of palm, sloe and axilla were higher than that of control group(P<0.01). 2. There was a marked reduction of conductance after the treatment for one week by topical 20% aluminum chloride solution, an lontophoretic device, and sympathectomy(P<0.01). 3. After 2-4 week of treatment by the change obsetved after treatment for one week. 4. By iontophoretic device, there was a slight increasement of conductance of the palm after 2-3weeks of treatment. 5. We obseved a sustained decrease in the conductance by sympathectomy into 4 week. CONCLUSION: Topical 20% aluminum chloride solution, iontophoretic device, and sympathectomy were effective for treatment of hyperhirosis. Among hem sympathectomy showed the best effect. We observed that the skin surface hydrometer is useful to evaluate of the efficacy of the treatment.
Aluminum
;
Axilla
;
Female
;
Humans
;
Hyperhidrosis*
;
Male
;
Skin*
;
Sweat
;
Sympathectomy
8.CHANGE OF TEMPERATURE OF CANNULA AND ITS INFLUENCE ON MUSCLES, VESSELS, AND NERVES DURING ULTRASONIC LIPOSUCTION.
Dong Hun LEE ; Byung Chae CHO ; Jung Hyung LEE ; Bong Su BAEK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(2):264-274
It has been suspected that the cannula of the ultrasonic generator became heated during liposuction, and that the heated cannula might possibly damage the soft tissues such as vessels, nerves and muscles. To confirm these suspicions, the actual temperature of the cannula was measured after being switched on, and the influence of the heated cannula on the soft tissues of 30 rabbits was studied macroscopically and microscopically. When the cooling system of ultrasonic generator was not operated, the temperature of a cannula tip increased to 100degrees C in 10 seconds, and the temperature of a cannula shaft did not increase over 40 degrees C. When the cooling system of the ultrasonic generator was operated, the temperature of the cannula tip increased to 70 degrees C in 20 seconds and to 100 degrees C in 1 minute. The stronger ultrasonic power was, the higher the temperature of the cannula tip was. When the heated cannnula tip touched the muscles, vesseles and nerves directly, the arterial and venous walls were perforated in about 20 seconds and 10 seconds, respectively. Gross changes of the muscles, such as color change and depression of the contacted area, were seen in about 30 seconds, and histological changes occurred in about 3 seconds. When adding the Klein solution, an infiltration solution for increasing the destructive effects of the ultrasound, the onset time of tissue damage was significantly shortened in vessels and nerves, but there was no significant difference in muscles. Although there was no finding of damage by the ultrasonic wave itself on the vessels, nerves, and muscles during ultrasonic liposuction, this study confirmed that the heated cannula could damage vessels, nerves, and muscles. Thus we must try to avoid placing the cannula at certain areas for more than 10 seconds douring the ultrasonic liposuction.
Catheters*
;
Depression
;
Hot Temperature
;
Lipectomy*
;
Muscles*
;
Rabbits
;
Ultrasonics*
;
Ultrasonography
9.Distraction Osteogenesis after Membranous Onlay Bone Graft in a Dog Model.
Sae Jung PARK ; Bong Soo BAIK ; Dong Hun LEE ; Byung Chae CHO ; Jung Hyung LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(3):440-447
The purpose of this study was to investigate the possibility of distraction osteogenesis in membranous onlay bone graft on the mandible and to clarify the histology of bone repair during distraction osteogenesis in the membranous onlay bone in a dog model. Four dogs, 5 months of age at the beginning of the experiment, were used for this study. The zygomatic arch was exposed in the subperiosteal plane and the full-thickness zygomatic arch was harvested to 3 centimeters in length. The lateral surface of the mandibular body was exposed in the subperiosteal plane and the membranous onlay bone graft was performed with firm contact using screws. The osteotomy on the membranous onlay bone graft and underlying mandibular body was carried down week 1 in dog 1, week 2 in dog 2, week 3 in dog 3, and week 4 in dog 4 after membranous onlay bone graft. The external distraction device was applied to the mandibular body. Mandibular distraction was started 7 days after the operation at a rate of 1mm per day for a total of 10 mm distraction over 10 days. After completion of distraction, the distraction device was left in place for 6 weeks bony consolidation of the distracted area. Radiographs were carried out at 2 weeks, 4 weeks and 6 weeks after distraction. New bone between the native underlying mandibular segments was generated in the distracted zone in all dogs. The new bone between the native underlying mandibular segments was generated in the distracted zone in all dogs. The new bone between segments of membranous onlay bone graft was not generated in dog 1, but it was generated in dogs 2, 3 and 4. However, in dog 2 and 3, the new bone between segments of the distracted membranous onlay bone graft presented less firmness with fibrous tissue than that of the native underlying mandibular segment. Histologically, the distracted gap between segments of the membranous onlay bone graft was composed of much fibrous tissue in the central zone while activated osteoblastic cells formed new bone in the margins of the distracted gap in dogs 2 and 3. In dog 4, there were abundant osteoblastic activities in the distracted gap and the new bone appeared as nearly-normal cortical bone. In conclusion, these findings suggested that membranous onlay bone graft had an osteogenic capacity and that distraction osteogenesis was possible in membranous onlay bone graft.
Animals
;
Dogs*
;
Inlays*
;
Mandible
;
Osteoblasts
;
Osteogenesis, Distraction*
;
Osteotomy
;
Transplants*
;
Zygoma
10.Prenatal diagnosis of 4 cases of gastroschisis.
Dong Boon PARK ; Min Chul LEE ; Sang Hun CHA ; Tai Ho CHO
Korean Journal of Obstetrics and Gynecology 1993;36(7):2015-2024
No abstract available.
Gastroschisis*
;
Prenatal Diagnosis*