1.The Effects of Doxapram on the Pulmonary Function during Total Intravenous Anesthesia with Propofol According to Nalbuphine Pretreatment.
Sang Wook SHIN ; Dong Hee KANG ; Seung Wan BAIK
Korean Journal of Anesthesiology 1997;33(5):883-889
BACKGROUND: Total intravenous anesthesia with propofol can cause respiratory depression and apnea especially during induction of anesthesia. To study the possibility of reversal of respiratory depression during anesthesia with propofol, pretreated with nabuphine or not, the respiratory effects of doxapram to spontaneously ventilating patients were investigated. METHODS: Patients were divided into 4 groups - saline-propofol-saline group (SPS), saline-propofol- doxapram group (SPD), nalbuphine-propofol-saline group (NPS), and nalbuphine-propofol-doxapram group (NPD). After saline or nalbuphine pretreatment, anesthesia was induced with propofol and then doxapram or saline was intravenously injected. Apneic time interval, blood pressure, heart rate, respiratory rate, minute ventilation, end tidal CO2 partial pressure and oxygen saturation were measured in every minutes during induction of anesthesia. Percent changes of each values were compared. RESULTS: There is no differences in apneic time intervals in each groups. The percent change of first minute ventilation in SPD group after doxapram injection unchanged significantly compared with those depressions of SPS, NPS and NPD group (p<0.05). Respiratory rates increased in SPD and SPS groups after laryngeal mask insertion. There is no differences in minute ventilation, respiratory rate and end-tidal CO2 concentration between nalbuphine pretreated groups regardless of doxapram injection. CONCLUSIONS: Doxapram has effect in increasing minute ventilation after propofol induction within first few minutes, but it cannot reverse respiratory depression during propofol induction pretreated with nalbuphine.
Anesthesia
;
Anesthesia, Intravenous*
;
Apnea
;
Blood Pressure
;
Depression
;
Doxapram*
;
Heart Rate
;
Humans
;
Laryngeal Masks
;
Nalbuphine*
;
Oxygen
;
Partial Pressure
;
Propofol*
;
Respiratory Insufficiency
;
Respiratory Rate
;
Ventilation
2.Double-Layered Lateral Meniscus: A Case Report
Chung Nam KANG ; Dong Wook KIM ; Seung Hyun HWANG
The Journal of the Korean Orthopaedic Association 1996;31(6):1307-1310
Many types of meniscal anomalies were reported. Authors found a double-layered lateral meniscus, with one meniscus overlying another. The 39-year old male patient had torn medial and lateral menisci. We performed partial medial and lateral meniscectomy, and incidentally found that lateral meniscus was double-layered. It was characteristic that the upper small accessory meniscus was firmly connected from the posterior horn to middle segments of the lower main meniscus along its peripheral edge. We left it alone. The symptoms were gone, So, it was thought that this anomaly was not related to the patient's symptoms.
Animals
;
Horns
;
Humans
;
Male
;
Menisci, Tibial
3.Spontaneous Lumbar Epidural Hematoma Mimicking Lumbar Disc Herniation.
Dong Hyun KYUNG ; Byung Gwan MOON ; Joo Seung KIM ; Hee In KANG ; Seung Jin LEE
Journal of Korean Neurosurgical Society 2000;29(5):623-627
No abstract available.
Hematoma*
4.Herbal Medication Aggravates Cataract Formation: A Case Report.
Kui Dong KANG ; Seung Min KANG ; Hye Bin YIM
Journal of Korean Medical Science 2008;23(3):537-539
We report a case of complicated cataract aggravated after taking herbal medication for atopic dermatitis. An 11-yr-old boy was referred for the evaluation of decreased visual acuity in both eyes for 2 months. Past history showed that he had been diagnosed with atopic dermatitis when he was 1 yr old. He had been treated only with herbal medication for a period of 8 months prior to visiting our clinic. He had his visual acuity checked in a local ophthalmic clinic one year before, and the visual acuity was 20/20 in both eyes at that time. When attending our clinic the ophthalmologic examination showed that his best corrected visual acuity was 20/200 in both eyes. Lenses of both eyes had severe posterior subcapsular and posterior capsular opacity. Phacoemulsification, posterior chamber intraocular lens implantation, and posterior continuous curvilinear capsulectomy were performed in both eyes. After 3 months postoperatively, the best corrected visual acuity was recovered to 20/20 in both eyes without any complication. Our case suggests that there may be a risk of aggravation of cataract or development of cataract after treatment with some unidentified herbal medication in a patient with atopic dermatitis.
Cataract/*chemically induced
;
Cataract Extraction
;
Child
;
Dermatitis, Atopic/*drug therapy
;
Drugs, Chinese Herbal/*adverse effects
;
Humans
;
Male
;
Visual Acuity/drug effects
5.Atypical Mesoblastic Nephroma: Report of a case.
Jin Man KIM ; Dong Wook KANG ; Seung Ki MIN ; Kwang Sun SUH ; Dae Young KANG
Korean Journal of Pathology 1991;25(6):601-606
Congenital mesoblastic nephroma(CMN) is an important differential diagnosis of a renal mass occurring in the newborn or in early childhood. It was first described by Bolande as a separate disease entity distinct form Wilms' tumor. In 1974, Beckwith has predicted that this tumor has a pathologic spectrum with classic congenital mesoblastic nephroma at one extreme, unequivocally mallignant spindle cell sarcomas at the other, and intermediate "gray zone" lesions of indeterminate biologic significanse. In 1986, Joshi has described "atypical mesoblastic nephroma" as a potentially aggressive variant of CMN, which shows atypical gross and microscopic features such as hemorrhage, necrosis, high cellularity, and mitotic index. We report of a case of atypical mesoblastic nephroma presenting in a 38 days-old male infant. Grossly, the tumor involved the upper and midportion of the left kidney. On section, the cut surface was fleshy, grayish-white, and homogeneous. Microscopically, the tumorshowed high degree of cellularity and arrangement of fusiform cells in sheets and vague interlacing bundles. The individual tumor cells showed fusiform to oval nuclei, indistinct scanty pale-eosinophilic cytoplasm and many mitotic figures.
Infant
;
Child
;
Male
;
Female
;
Infant, Newborn
;
Humans
;
Diagnosis, Differential
6.A Case of Lupus Miliaris Disseminatus Faciei on the Neck.
Tae Wook KANG ; Seung Dong LEE ; Hoon KANG
Korean Journal of Dermatology 2007;45(7):748-750
Lupus miliaris disseminatus faciei (LMDF) is an eruption of discrete red-brown, dome-shaped papules, histologically characterized by epithelioid cell granulomas. Although it is thought that LMDF might occur by an unusual reaction to pilosebaceous units, the exact reason for facial predominant occurrence is not clear. There have been extrafacial reports of LMDF on the axillae, shoulders, arms, hands, groins and legs together with facial lesions, but reports on LMDF solely involving the extrafacial areas have not been made. Herein we report a rare case of LMDF on the neck of a patient without any facial manifestations.
Arm
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Axilla
;
Epithelioid Cells
;
Granuloma
;
Groin
;
Hand
;
Humans
;
Leg
;
Neck*
;
Shoulder
7.A Case of Aquired Smooth Muscle Hamartoma with Follicular Spotted Appearance.
Tae Wook KANG ; Seung Dong LEE ; Hoon KANG
Korean Journal of Dermatology 2007;45(5):486-488
Smooth muscle hamartoma is a benign hamartomatous condition, presenting clinically as a skin-colored or hyperpigmented patch or plaque and histologically as dermal smooth muscle hyperplasia. It is thought that Becker's nevus and smooth muscle hamartoma are distinct entities at either end of a spectrum. It can either be congenital or acquired We herein report a case of acquired smooth muscle hamartoma with follicular spotted appearance. We consider it as a rare clinical variant of smooth muscle hamartoma, which is clearly different from Becker's nevus.
Hamartoma*
;
Hyperplasia
;
Muscle, Smooth*
;
Nevus
8.Incidence of postoperative hypoxemia of patients in oral & maxillo-facial surgery using arterial blood gas analysis.
Myung Soo KANG ; Seung Ki MIN ; In Woong UM ; Dong Keun LEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1992;18(2):1-8
No abstract available.
Anoxia*
;
Blood Gas Analysis*
;
Humans
;
Incidence*
9.Regulation of type I collagen and interstitial collagenase mRNA expression in human dermal fibroblasts by colchicine and D-penicillamine.
Kee Yang CHUNG ; Dong Seung KANG
Yonsei Medical Journal 1999;40(5):490-495
Sclerosis is a disease process in which idiopathic hardening occurs in the skin and/or internal organs as a result of the accumulation of type I collagen, induced mainly by transforming growth factor-beta. Colchicine and D-penicillamine are widely used for its treatment. Their effects are known to be due to post-translational down-regulation of type I collagen synthesis, with colchicine also up-regulating interstitial collagenase. To determine whether or not they have any pre-translational effect on type I collagen and MMP-1, and also to observe their effects on the action of TGF-beta, cultured neonatal foreskin fibroblasts were treated with colchicine and D-penicillamine, singly and together. The amount of type I collagen and MMP-1 mRNA were quantitated by Northern blot hybridization. Colchicine suppresses the basal level of type I collagen mRNA but minimally stimulates the mRNA expression of MMP-1, whereas D-penicillamine does not have any significant effects on either. Colchicine was also able to significantly suppress the TGF-beta-induced up-regulation of type I collagen mRNA expression.
Cells, Cultured
;
Colchicine/pharmacology*
;
Collagen/genetics*
;
Fibroblasts/metabolism
;
Gene Expression Regulation/drug effects*
;
Human
;
Interstitial Collagenase/genetics*
;
Penicillamine/pharmacology*
;
RNA, Messenger/analysis*
;
Skin/metabolism
;
Skin/cytology
;
Transforming Growth Factor beta/pharmacology
10.A STUDY ON THE TENSILE STRENGTH OF REINFORCED VENEERING COMPOSITE RESINS FOR CROWN.
Seung Geun AHN ; Dong Wan KANG
The Journal of Korean Academy of Prosthodontics 2000;38(2):226-241
Recently a new generation of crown and bridge veneering resins containing submicron glass fillers was introduced. These ultrasmall particle hybrid composite materials distinguish themselves, compared with conventional microfill crown and bridge resins, through improved mechanical properties. It is claimed that these composites are suitable for metal free crowns and even bridges using fiber reinforcement. The purpose of this study was to evaluate the effect of thermal cycling on the tensile strength of the following veneering composites: Artglass(Heraeus Kulzer Co., Wehrheim, Germany), Estenia(Kuraray Co., Japan), Sculpture(Jeneric Pentron Co., Wallingford, U.S.A.), and Targis(Ivoclar Co., Schaan Liechenstein). According to manufacturer' s instructions, rectangular tensile test specimens measuring 1.5 x 2.0 x 4.5 mm were made using a teflon mold. Whole specimens were divided into two groups. One group was dried in a desiccator at 25C for 10 days, and another group was subjected to thermal cycling(10,000 x) in water(5/55 10. All test specimens were placed in a universal testing machine and loaded until fracture with a crosshead speed of 0.5mm/min. Weibull analysis and Tukey s test were used to analyze the data. The fracture surfaces of specimens were observed in SEM and the aliphatic C=C absorbance peak of Estenia and Targis resin was analyzed using Fourier transform infrared(FTIR) spectroscopy. Within the limitations imposed in this study, the following conclusions can be drawn 1. Both in drying condition and, thermal cycling condition, the highest tensile strength was observed in Estenia testing group(p<0.05). 2. The strength data were fit to single-mode Weibull distribution, and the Weibull modulus of all veneering composite resin specimens increased after thermal cycling treatment. 3. After thermal cycling test, the highest tensile strength was observed in the Estenia group, and the lowest value was observed in the Targis group. The tensile strength values showed the significant differences between each group(p<0.05). 4. The aliphatic C = C absorbance peak of Estenia and Targis resin was decreased after light curing, and there was no distinct change after thermal cycling.
Composite Resins*
;
Crowns*
;
Fourier Analysis
;
Fungi
;
Glass
;
Polytetrafluoroethylene
;
Silicone Elastomers
;
Spectroscopy, Fourier Transform Infrared
;
Spectrum Analysis
;
Tensile Strength*