1.The Transmittance of UVA and UVB on Human Epidermis.
Yoo Won CHOI ; Hyung Chul KANG
Korean Journal of Dermatology 1997;35(3):485-490
BACKGROUND: Ultraviolet light induces sunburn, ageing of the skin, pigmentation and even promotes skin cancers. As there has been a recent decrease in the ozone layer surrounding the earth, increasing attention has been given to the effects of ultraviolet light on the skin. Through human epidermis, ultraviolet light is reflected, scattered, absorbed or transmitted. In caucacians, the rate of transmitted ultraviolet light A from the epidermis to the dermis is 50% and the rate of transmitted ultraviolet light B is below 10%. OBJECTIVE: The purpose of this study was to evaluate the transmittance of UVA and UVB on Korean normal epidermis. METHODS: Pure epidermis was obtained from normal human epidermis by suction of blisters in 12 patients with vitiligo. All specimens were irradiated respectively with UVA and UVB and the amount of transmitted energy was measured. RESULTS: 1. The transmittance of UVA energy density by normal epidermis was 47.7+11.2% of irradiated UVA energy. 2. The transmittance of UVB energy density by normal epidermis was 32.4+3.4% of irradiated UVB energy. CONCLUSION: UVA energy transmission through normal epidermis of Korean is less than those of Caucacians but UVB energy transmission through nor mal epidermis of Korean is more than those of Caucacians. It is suggested that this could be an important basic data to study for photoaging and photoprotection in Korean population.
Blister
;
Dermis
;
Epidermis*
;
Humans*
;
Pigmentation
;
Skin
;
Skin Neoplasms
;
Stratospheric Ozone
;
Suction
;
Sunburn
;
Ultraviolet Rays
;
Vitiligo
2.Significance of preoperative abdominal computed tomography in gastric cancer patients.
Young Cheol LEE ; Won Jin CHOI ; Chul Soon CHOI
Journal of the Korean Surgical Society 1992;43(5):653-660
No abstract available.
Humans
;
Stomach Neoplasms*
3.The Mechanism of Blood Flow Generation during Closed Chest Cardiac Massage: Transesophageal Echocardiographic Monitoring.
Young Hi LEE ; In Chul CHOI ; Myung Won CHO
Korean Journal of Anesthesiology 1997;33(5):957-961
The mechanism of forward blood flow during closed chest cardiac massage remains controversial. Two theories have been suggested: the cardiac pump theory and the thoracic pump theory. Case report is presented to illustrate the use of transesophageal echocardiography during cardiopulmonary resuscitation. The findings included right and left ventricular compression, closure of the mitral valve during compression, opening of the mitral valve during the release phase, and atrioventricular regurgitation during compression, indicating a positive ventricular-to-atrial pressure gradient. These findings suggest that direct cardiac compression was the predominant mechanism of forward blood flow during cardiopulmonary resuscitation in this patient. Transesophageal echocardiography offers a new approach for study of the flows and cardiac morphologic features during chest compressions in humans. An understanding of the actual mechanisms involved is necessary if improved cardiopulmonary resuscitative techniques are to be rationally developed for enhancing the outcome of resuscitation.
Cardiopulmonary Resuscitation
;
Echocardiography*
;
Echocardiography, Transesophageal
;
Heart Massage*
;
Humans
;
Mitral Valve
;
Resuscitation
;
Thorax*
4.Septate Uterus with Duplication of the Cervix and Longitudinal Vaginal Septum with Hemivaginal Stricture.
Ju Hye CHOI ; Sueng Chul KIM ; Hye Won CHUNG
Korean Journal of Obstetrics and Gynecology 1999;42(11):2596-2599
M llerian anomalies have been infrequently encountered clinical problem for the obstetrician gynecologist, incidence was estimated to occur in 1% to 6% of all women. Recently, the use of vaginal ultrasound, MRI and endoscopic techniques have led to more accurate description and classification of m llerian anomalies. This report of a complete uterine septum with duplication of the cervix and a longitudinal vaginal septum with hemivaginal stricture represents a unique case of septate uterus, which to our knowledge previously has not been reported.
Cervix Uteri*
;
Classification
;
Constriction, Pathologic*
;
Female
;
Humans
;
Incidence
;
Magnetic Resonance Imaging
;
Ultrasonography
;
Uterus*
5.Autologous Epidermal Graft Using Suction Blister in Leg Ulcers.
Mi Ae LEE ; Yoo Won CHOI ; Hyung Chul KANG
Annals of Dermatology 1996;8(3):227-231
Regardless of the any cause leg ulcers are painful and inconvenient to patients and present clinical and economic problems due to their chronicity. Conventional skin grafts, cultured allogenic epidermis, and cultured autologous epidermis have been used for the treatment of leg ulcers. In a twenty-year-old woman with leg ulcers, autologous pure epidermal sheets were obtained from the lower chest by means of suction blisters and grafted to the leg ulcers. All lesions were healed completely in 20 days after grafting. The donor sites showed slight postinflammatory hyperpigmentations without scars. The autologous epidermal graft using suction blisters appears to be a useful method for the treatment of leg ulcers, with no immunologic rejection, no need for cultivation and anesthesia, no desiccation, and no scars on the donor sites.
Anesthesia
;
Blister*
;
Cicatrix
;
Desiccation
;
Epidermis
;
Female
;
Humans
;
Leg Ulcer*
;
Leg*
;
Methods
;
Skin
;
Suction*
;
Thorax
;
Tissue Donors
;
Transplants*
6.Diagnosis and Treatment of Anemia: An Out-Patient Approach.
Journal of the Korean Academy of Family Medicine 2003;24(4):303-309
No abstract available.
Anemia*
;
Diagnosis*
;
Humans
;
Outpatients*
7.The Effects of Herb Extracts in Cerebrovascular Accidental Patient.
Mi Hwa LEE ; Hyoung Sook PARK ; won Chul CHOI
Korean Journal of Rehabilitation Nursing 2000;3(2):141-153
The several Chinese herbs such as Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O-Tang, Seong-Hyang-Jeong-Ki-San, So-Hap-Hyang-Won and O-Yak-Soon-Ki-San were extracted with water and then lyophilized. For identification of the effect of extracted herbs, they were medicated to 103 patients of cerebrovascular accident for 4 week. They were hospitalized in D-Oriental Medical Hospital from April to August in 1999. The herbs were extracted with water and lyophilized and then, used as samples. The medical history of each patient was detected and analyzed from their medical records. The results were as follows: 1) Each sample (Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O-Tang, Seong-Hyang-Jeong-Ki-San, and O-Yak-Soon-Ki-San) was statistically significant differences of systolic blood pressure(t=4.22, P=0.0004: t=3.44, P=0.0028: t=2.11. P=0.0463: t=3.23, P=0.0052). The statistically significant difference of diastolic blood pressure showed by medicated with Soon-Ki-Hwal-Hyal-Tang, Seong-HyangJeong-Ki-San, and O-Yak-Soon-ki-San(t=2.13, P= 0.0459: t=2.68, P=0.0136: t=3.12, P=0.0066). 2) The statistically significant difference of the arm/leg-ROM showed by medicated with Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O Tang, So-Hap-Hyang-Won(t =4. 74/4. 95, P=0.0002/0.0001: t=2.25/2.44, P=0.0368/0.0248: t=585/6.76, P=0.0001/0.0001). 3) In the verbal disorder, Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O-Tang had statistically significant differences(t=4.50, P=0.0002: t=3.32, P=0.0036) 4) In the conscious disorder, Soon-Ki-HwalHyul-Tang, Bo-Yang-Hwan-O-Tang, Seong-Hyang =-Jeong-Kj-San, and So-Hap-Hyang-Won had statistical1y significant differences(t =6.32, P = 0,0001: t=8.32, P=0.000l: t=3.74, P=0.0012: t=5.14, P=0.0001). 5) Bovine aortic endothelial cell (BAEC) were cultured in DMEM treating 0.01mg/ml. and 0.1mg/ml of each lyophilized samples for 24 hours, In BAECs were treated by 5 kinds of samples, the effect of So-Hyap-Hyang-Won induced syncytium of adjacent endothelial cells. It may induce the recovering of the damaged blood vessels in cerebrovascular accidental patient by angiogensis of endothelial cells. Therefore, it suggests that the medication of So-Hap-Hyang-Won will help to nursing care for cerebrovascular accidental patients.
Asian Continental Ancestry Group
;
Blood Pressure
;
Blood Vessels
;
Endothelial Cells
;
Giant Cells
;
Humans
;
Medical Records
;
Nursing Care
;
Stroke*
;
Water
8.Dorsal Nerve Somatosensory Evoked Potential Test for Localizing the Lesion in Neurogenic Erectile Dysfunction.
Won Jae YANG ; Young Deuk CHOI ; Young Chul CHOI ; Sang Yol MAH ; Hyung Ki CHOI
Korean Journal of Urology 2000;41(5):645-649
No abstract available.
Erectile Dysfunction*
;
Evoked Potentials, Somatosensory*
;
Male
9.Computed tomotgraphy in the preoperative evaluation of clinical stage I b-II a carcinoma of the cervix.
Man Chul PARK ; Joo Hyun NAM ; Won Sop OH ; Jwa Koo CHUNG ; Chul Sun CHOI
Korean Journal of Obstetrics and Gynecology 1993;36(7):1293-1299
No abstract available.
Cervix Uteri*
;
Female
10.Treatment of Tracheobronchial Stenosis with a Self-Expandable Metallic Stents.
Yo Won CHOI ; Yong Soo KIM ; Seok Chol JEON ; Chang Kok HAHM ; Chul Seung CHOI
Journal of the Korean Radiological Society 1994;31(1):35-41
PURPOSE: We analysed the role of modified Gianturco self-expandable stents in the treatment of tracheobronchial stenosis in 13 patients. MATERIALS AND METHODS: We inserted modified Gianturco self-expandable stents under the fluoroscopic and bronchoscopic guidance. There were stenosis in the trachea(n--2), the right main bronchus(n=2), and the left main bronchus(n=9). The causes of the stenosis were endobronchial tuberculosis(n=10), intubation granuloma (n=l), restenosis after surgical reconstruction(n=2). RESULTS: Dyspnea or wheezing was improved within 1 or 2 days following the procedure. There were 32% and 22% respective increase in average FEV1 and FVC. Lung perfusion scan showed 9.6% increase of perfusion in the involved lung. No complications related to the procedure were encountered. During follow-up period of up to 31 months, 2 patients showed tracheal or bronchial restenosis, at 3 and 6 months, retrospectively. There was a distal migration of the stents in one case. CONCLUSION: During the follow up period after stent insertion, improvement of the obstructive changes and dyspnea persisted in 10 out of 13 patients. The modified Gianturco self-expandable metallic stents may be a good choice for the treatment of tracheobronchial stenosis, either as a primary treatment, or when the reconstruction failed.
Constriction, Pathologic*
;
Dyspnea
;
Follow-Up Studies
;
Granuloma
;
Humans
;
Intubation
;
Lung
;
Perfusion
;
Respiratory Sounds
;
Retrospective Studies
;
Stents*