1.Effects of Propofol in Combination with Ephedrine on the Hemodynamic Effects during Anesthesia Induction.
Ho Yeong KIL ; Kwon Jae LEE ; Seung Joon LEE ; Young Joon YOON
Korean Journal of Anesthesiology 1997;33(1):63-67
BACKGROUND: Propofol is a useful induction agent, but it can cause hypotention and bradycardia. Meanwhile, ephedrine has alpha-vasoconstriction and beta-cardiac stimulant effect. The purpose of this study was to assess the hemodynamic effects of adding various doses of ephedrine to propofol to obtund adverse hemodynamic response and to determine the optimal dose. METHODS: Unpremedicated 120 ASA physical status I adult patients (20~50yrs) scheduled for elective surgery were randomly allocated into four groups according to the doses of ephedrine added to propofol (1%, 20 ml). Group 1 (control group) was given propofol alone and 10, 15 and 20 mg of ephedrine was added to propofol in Group 2, 3 and 4, respectively (n=30 for each group). Propofol was loaded at 150 ml/hr using a syringe pump and no response to verbal command was ascertained as the end-point of induction. Vital signs and SpO2 were checked every 1 min during the induction period. RESULTS: In group 1, there was a significant decrease in both systolic and diastolic pressure prior to intubation. Group 2 and 3 showed relatively stable hemodynamic changes and significant systolic or diastolic changes occured only in the pre or post 1 min periods of intubation. But, in pulse rate, group 3 showed significant change 1 and 2 min after intubation, in contrary to group 2. Group 4 showed significant changes in systolic and diastolic pressure 1 and 2 min after intubation, and in pulse rate throughout the postintubation period. CONCLUSIONS: Ephedrine 10mg may be safely employed to reduce the hemodynamic changes during induction preiod with propofol.
Adult
;
Anesthesia*
;
Blood Pressure
;
Bradycardia
;
Ephedrine*
;
Heart Rate
;
Hemodynamics*
;
Humans
;
Intubation
;
Propofol*
;
Syringes
;
Vital Signs
2.A Case of Cockayne Syndrome.
Jae Yoon KIM ; Jae Hyun PARK ; Joon Soo LEE ; Chang Jun COE
Journal of the Korean Child Neurology Society 1998;6(1):118-124
Cockayne syndrome is a rare autosomal recessive disorder that results in postnatal growth failure and progressive neurological dysfunction. Associated clinical features are gait disturbance, progressive pigmentary retinopathy and other ocular anomalies such as cataracts and optic disk atrophy, sensorineural hearing loss, dental caries and cutaneous photosensitivity. The disease is clinically heterogeneous with a wide range in the type and severity of symptoms. We experienced a case of Cockayne syndrome in 13 year-old male, who had delayed development, hypophasia, characteristic physical appearance, cutaneous photosensitivity, dental caries. We reported the case with review of literatures.
Adolescent
;
Atrophy
;
Cataract
;
Cockayne Syndrome*
;
Dental Caries
;
Gait
;
Hearing Loss, Sensorineural
;
Humans
;
Male
;
Optic Disk
;
Retinitis Pigmentosa
3.Infantile Acute Hemorrhagic Edema.
Joon Hyeok YOON ; Jong Hee NA ; Do Won KIM ; Sang Lip CHUNG ; Jae Bok JUN
Annals of Dermatology 1995;7(1):82-85
We report a case of infantile acute hemorrhagic edema in a 15-month-old boy. The patient showed multiple, bean to walnut-sized, red to purple-colored, indurated purpura with a cockade pattern on the face, earlobes, and extremities. Edema of the hands, feet, and earlobes was also observed. Laboratory examinations showed thrombocytosis, decreased serum CH50, and ketone in the urine. A skin biopsy taken from indurated purpura on the lower leg exhibited findings of acute leukocytoclastic vasculitis. Direct immunofluorescence examination showed deposition of IgM along the dermo-epidermal junction and C3 in the dermal vessel walls. With-out specific management except for fluid therapy to correct dehydration, the skin lesions cleared completely in 2 weeks, and recurrence has not observed.
Biopsy
;
Dehydration
;
Edema*
;
Extremities
;
Fluid Therapy
;
Fluorescent Antibody Technique, Direct
;
Foot
;
Hand
;
Humans
;
Immunoglobulin M
;
Infant
;
Leg
;
Male
;
Purpura
;
Recurrence
;
Skin
;
Thrombocytosis
;
Vasculitis
4.A case of relapsed minimal-change nephrotic syndrome with multiple brain infarction.
Jun YOON ; Chi Youl KIM ; Min Joon CHOI ; Hyeong Eun LIM ; Moon Jae KIM
Korean Journal of Nephrology 1991;10(2):228-233
No abstract available.
Brain Infarction*
;
Brain*
;
Nephrotic Syndrome*
5.The First Neurosurgical Analysis of 8 Korean Children with Sotos Syndrome.
Journal of Korean Neurosurgical Society 2008;44(4):240-244
OBJECTIVE: Sotos Syndrome is characterized by macrocephaly, overgrowth, and developmental delay, and more than 300 patients have been reported worldwide to date. The authors reviewed the clinical characteristics of 8 patients with Sotos Syndrome in Korea for a new understanding and treatment strategies. METHODS: The medical records of a total of eight Korean children with Sotos Syndrome were reviewed. All patients underwent developmental checkup, lumbar punctures for measurement of intracranial pressure (ICP), brain and spine magnetic resonance imaging and computerized tomography. RESULTS: All 8 patients showed macrocephaly and the characteristic craniofacial features of Sotos Syndrome. Other clinical characteristics shown were overgrowth (7/8), developmental delay (7/8), congenital heart defect (3/8), flat foot (8/8), scoliosis (4/8), spina bifida (8/8), hydrocephalus (4/8), cavum vergae (3/8), and increased subdural fluid collection (5/8). Mean ICP measured via lumbar puncture was 27.35+/-6.25 cm H2O (range 20 to 36 cm H2O). Two patients received ventriculo-peritoneal shunt, and 1 patient underwent subduro-peritoneal shunt with improvement. Spinal orthosis was applied to 4/5 patients with scoliosis and 4/8 children with flat foot were provided with foot orthosis. CONCLUSION: In this first Korean study of 8 Sotos Syndrome patients we demonstrated the presence of spina bifida and increased ICP, which had not been previously described. The authors therefore suggest that all patients with Sotos Syndrome should undergo examination for the presence of spina bifida, and that shunt procedures would improve development and alleviate clinical symptoms.
Brain
;
Child
;
Flatfoot
;
Foot Orthoses
;
Heart Defects, Congenital
;
Humans
;
Hydrocephalus
;
Intracranial Pressure
;
Korea
;
Macrocephaly
;
Magnetic Resonance Imaging
;
Medical Records
;
Orthotic Devices
;
Scoliosis
;
Sotos Syndrome
;
Spinal Dysraphism
;
Spinal Puncture
;
Spine
;
Ventriculoperitoneal Shunt
6.Analysis of shoulder MR imaging using Receiver Operating Characteristic curve.
Yoon Joon HWANG ; Jin Suck SUH ; Jae Hyun CHO
Journal of the Korean Radiological Society 1998;38(4):723-729
PURPOSE: To assess the utility of shoulder MRI by using ROC (receiver operating characteristic) curve in theevaluation of rotator cuff tear, anterior labral tear, superior labral tear and Hill-Sachs Lesion. MATERIALS AND METHODS: We evaluated 38 arthroscopically confirmed patients who had undergone shoulder MRI. According to thesignal intensity of the rotator cuff, as seen on T2 and proton density imaging, a five-stage grading system wasdevised. Labral tears were graded according to the separation of the labium; this was based on gleaned,morphologic and signal intensity changes of the labrum : six grades of anterior labral tear and three grades ofsuperior labral tear. Hill-sachs lesion was also classified into four grades according to morphologic and signalchanges of the humeral head. These findings were reviewed by two musculoskeletal radiologists and ROC curves andareas under the curve (Az) was abtained. RESULTS: The ratio of area under the curve of rotator cuff tear,anterior labral tear, superior labral tear and Hill-Sachs lesion were 82.4%, 88.%%, 62.4% and 91.3%, respectively. CONCLUSION: The Accuracy of shoulder MRI using ROC curve was relatively high in rotator cuff tear, anteriorlabral tear and Hill-Sachs lesion, but low in superior labral tear.
Humans
;
Humeral Head
;
Magnetic Resonance Imaging*
;
Protons
;
ROC Curve*
;
Rotator Cuff
;
Shoulder*
7.Central Pontine Myelinolysis after Liver Transplantation: A case report.
Kwon Jae LEE ; Hyun CHOI ; Young Joon YOON ; Soo Tae KIM
Korean Journal of Anesthesiology 1997;33(3):572-577
Central pontine myelinolysis (CPM) is a demyelinating disorder that almost exclusively affects the central portion of basis pontis and occurs in patients with malnutrition, chronic debilitating disorders and electrolyte abnormalities. CPM after liver transplantation is considered that had the relationship to rapid correction of hyponatremia and shift in osmolality. Our first case of 4 liver transplantations altered consciousness at the 5th day after transplantation and did not recover fully until 14 months. At first, atrial fibrillation and atelectasis due to left main broncheal obstruction were thought the causes of impaired consciousness as postoperative hypoxic event. At that time, CT scan showed diffuse brain atropy that suggested previous hepatic encephalopathy and/or hypoxic ischemic encephalopathy. After that, MRI revealed CPM and diffuse cortical atropy. We concluded that CPM associated with rapid correction of hyponatremia perioperatively alter patient's consciousness with hypoxic brain injury.
Atrial Fibrillation
;
Brain
;
Brain Injuries
;
Consciousness
;
Demyelinating Diseases
;
Hepatic Encephalopathy
;
Humans
;
Hyponatremia
;
Hypoxia-Ischemia, Brain
;
Liver Transplantation*
;
Liver*
;
Magnetic Resonance Imaging
;
Malnutrition
;
Myelinolysis, Central Pontine*
;
Osmolar Concentration
;
Pulmonary Atelectasis
;
Tomography, X-Ray Computed
8.Intraoral malarplasty Including Zygomatic process of maxilla.
In Dae YOON ; Young Hwan KIM ; Jin Hwan KIM ; Joon CHOE ; Jae Hyun PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(5):781-785
The malar bones are major determinants of mid-facial shape. In an oriental population, malar prominences are considered an unpleasing and undesirable feature because they give the face a triangular shape and may produce an emaciated and sunken appearance. There are two main operative approaches to malarplasty. One is a coronal approach and the other is a intraoral approach. The former possess advantages of symmetricity, accuracy and superiorly, medially and posteriorly aesthetical transposition of the malar bone. However, it has drawbacks such as a long visible scar on the scalp and extensive operation. Though the latter is a simple method avoiding a visible scar, it has some problems of asymmetricity, cheekdrooping, partial transposition of the malar complex and difficulty of aesthetic transposition. The authors intended to perform intraoral malarplasty for symmetrically aesthetic transposition of the whole malar bone without cheekdrooping. From February 1996 to January 1999, 9 female patients with prominent malar complex, in whom the coronal incision was objectionable, had intraoral malarplasty performed with 2-point fixation after L-shaped osteotomy involving the zygomatic process of maxilla, resulting in symmetric and aesthetically desirable three dimensional transposition of the malar bone.
Cicatrix
;
Female
;
Humans
;
Maxilla*
;
Osteotomy
;
Scalp
;
Zygoma
9.Lipids Analysis of Epidermis and Stratum corneum Using Circumcised Prepuce.
Joon Hyeok YOON ; Do Won KIM ; Jae Bok JUN ; Sang Lip CHUNG
Korean Journal of Dermatology 1994;32(5):778-786
BACKGROUND: The changes in lipid composition during epidermal differentiation has been reported in human and animal models. Because of the difficulties in getting adeguate specimens from human subjects, the authors used easily obtainable circumcised prepuce for lipid analysis. OBJECTIVE: To investigate the changes in lipid composition duriig cornification of the epidermis, the lipid compositions of whole epidermis and stratum corneum were analyzed by thin layer chromatography(TLC). METHODS: From circumcied prepuce whole epidermis and stratum orneum were separated by 10mM EDTA(ethylene diamine tatraacetate) in PBS(phosphate-buffered saline) or heat(60C), and 0.5% trypsin in PBS respectively. Lipids were extracted with methanolctloroform-HO mixture(4:2:1.6, v/ v, Bligh-Dyer solvent), TLC was performed and lipid composition was quantitated by photodensitometer. RESULTS: In the composition of stratum corneum lipids, sphingoliids were the highest(33.3+2.9%) followed by cholesterol, free fatty acids and cholesterol esters in cleceasing order, there were small percentages of triglycerides, cholesterol sulfate and squalene. CONCLUSION: In this study the lipid composition of epidermis was similar to that of stratum corneum rather than those of previous reports on epidermal lipids, which may indicate the regional characteristics of epidermal/stratum orneum lipids in hyperkeratotic prepuie.
Cholesterol
;
Cholesterol Esters
;
Epidermis*
;
Fatty Acids, Nonesterified
;
Humans
;
Models, Animal
;
Squalene
;
Triglycerides
;
Trypsin
10.Acute Myocardial Infarction after a Bee Sting.
Young Gi MIN ; Yoon Seok JUNG ; In Cheol PARK ; Joon Pil CHO ; Seung Jae TAK
Journal of the Korean Society of Emergency Medicine 2000;11(3):378-384
Acute myocardial infarction after a bee sting is a very rare process. Among proposed mechanisms, vasospasm of the coronary artery is the most probable mechanism. Many mediators are included in the venom of wasps, and those mediators have vasoconstrictive properties and may constrict the coronary artery. Furthemore, those mediators have thrombogenic properties that lead to thrombogenesis in the coronary artery and aggravate myocardial ischemia. Epinephrine, commonly used in the management of anaphylactic shock, may further aggravate myocardial ischemia. We experienced two cases of acute myocardial infarction after a bee sting. In the first case, we could find no underlying abnormalities of the coronary vessel because the patient died during coronary angiography. In the second case, the electrocardiogram showed inferior wall myocardial infarction, but only mild stenosis of the right coronary artery was seen in coronary angiography.
Anaphylaxis
;
Bees*
;
Bites and Stings*
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Vessels
;
Electrocardiography
;
Epinephrine
;
Humans
;
Inferior Wall Myocardial Infarction
;
Myocardial Infarction*
;
Myocardial Ischemia
;
Venoms
;
Wasps