1.A clinical study on the nature and severity of oral & maxillofacialinjuries by cause.
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1991;17(2):11-20
No abstract available.
2.Regrowth of Grafted Lower Half of the Hair Follicle.
Sae Jung PARK ; Hyung Ho RYU ; Jung Min SEO ; Jung Chul KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(3):335-339
We have examined the regenerative capabilities of the human scalp hair follicle after grafting the lower half of the follicle. Twenty-eight of 32 intact whole-hair follicles isolated from the human scalp regenerated hairs when grafted onto the forehead of the same person. Seven of the 15 lower-half follicles regenerated complete hair follicles 8 months after grafting showed that the lower-half follicle implant reconstituted the complete hair follicle. The sebaceous gland was not regenerated, but there was an outgrowth in the sebaceous gland regPark ion. Some grafts formed epithelial cysts. Two years after grafting, the histological examination of the regenerated follicle from the lower-half implant showed that the sebaceous gland was completely regenerated. While an intact follicle shows prominent naked shaft outgPark Park Parkrowth, the sheath grows concomitantly with the shaft in lower-half follicles in culture. If grafted lower-half follicles were located too deep, the regrown sheath could not reach the epidermal layer. In this situation, the formation of an epidermal cyst was likely.
Epidermal Cyst
;
Forehead
;
Hair Follicle*
;
Hair*
;
Humans
;
Scalp
;
Sebaceous Glands
;
Transplants*
3.A Case of Cutaneous Horn Arising from Dermatofibroma.
Young Ju SEO ; Jung Ho RYU ; Kwang Ho KIM ; Kwang Joong KIM
Annals of Dermatology 2004;16(2):76-78
Cutaneous horn is a clinical diagnosis based upon the presence of a large protuberant mass of keratin. We report a case of cutaneous horn arising from dermatofibroma in a 31-year old woman. A silver whitish colored comical hyperkeratotic protruding lesion (1.0 0.7 cm size) from the red brown colored nodule was observed. Histopathologic findings showed characteristic findings of dermatofibroma and cutaneous horn. The lesion was removed by surgical excision.
Animals
;
Diagnosis
;
Female
;
Histiocytoma, Benign Fibrous*
;
Horns*
;
Humans
;
Silver
4.A Study of Frequency, Indications and Complications on Peripartum Hysterectomy.
Gyu Hong CHOI ; Yoon Jin JUNG ; Hoo Yeon JUNG ; Ryok Ho RYU ; Woo Ha HAN
Korean Journal of Perinatology 1998;9(3):292-298
By means of hospital-based data over 8 years we sought to evaluate the clinical indications and incidence of emergency peripartum hysterectomy by demographic characteristic and reproduction history. From the obstetric record of all deliveries at Chung Goo Hospital between Jan. 1, 1990, and Nov. 31, 1997, we identified all women undergoing emergency cesarean hysterectomy, calculated incidence rates, conducted statistical tests of linear trends and heterogenety, and observed the clinical indicatons preceding the onset of this procedure. There were 16731 deliveries during this period, Cesarean hysterectomy was performed in 24 of 5993 cesarean sections(0.40%) and in 10 of 10738 vaginal deleveries(0.09%), so more frequently after cesarean section than vaginal delivery. The age of patients varied from 22 to 40 years old. The higher the age and the parity of patients, the higher incidence of cesarean hysterectomy was noted. The most common indication of cesarean hysterectomy was uterine atony(52.94%) followed by placental disorders(41.18%), uterine myoma with pregnancy(2.9%) and uterine rupture (2.9%). All patients who had hysterectomy received transfusion from 1 pint to 57 pints. The postoperative complications were bladder injury, febrile morbidity, disseminated intravascular coaguolopathy and wound disruption. There were three maternal deaths, the cause was disseminated intravascular coaguolopathy and amniotic embolism. The data identifiy uterine atony as the primary cause for gravid hysterctomy. The data also illustrated how the incidence of emergency peripartum hysterectomy increases significantly with increasing parity, especially when influenced by a current placenta previa or a prior cesarean section. Maternal morbidity remained high.
Adult
;
Cesarean Section
;
Embolism
;
Emergencies
;
Female
;
Humans
;
Hysterectomy*
;
Incidence
;
Leiomyoma
;
Maternal Death
;
Parity
;
Peripartum Period*
;
Placenta Previa
;
Postoperative Complications
;
Pregnancy
;
Reproduction
;
Urinary Bladder
;
Uterine Inertia
;
Uterine Rupture
;
Wounds and Injuries
5.Posterior reversible encephalopathy syndrome following rapid correction of anemia
Soonwoong Hong ; Jin Man Jung ; Hwa Jung Ryu ; Do-Young Kwon ; Moon-Ho Park
Neurology Asia 2013;18(4):423-425
A 49-year-old woman with anemia who developed headache and seizure after blood transfusion was
diagnosed with posterior reversible encephalopathy syndrome (PRES). Magnetic resonance imaging
showed typical PRES findings including lesions in bilateral parieto-occipital subcortical white matter
and overlying cortex. Only a few cases of PRES after transfusion have been reported and this case is
unique in that there was a latent period between infusion and development of PRES. We postulate that
rapid change of hemoglobin level may disrupt cerebral autoregulation and result in delayed PRES. We
suggest that neurological symptoms after blood transfusion should be appropriately investigated.
6.A Study on the Cardiac Myofibrillar ATPase Activity in Diabetic Rats.
Wang Seong RYU ; Un Ho RYOO ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1987;17(3):479-490
Diabetes mellitus is known to be associated with a specific cardiomyopathy. This is evident from the clinical-pathological work and the epidemiologic data. An investigation was made in this study to determine whether diabetic cardiomyopathy in rats is associated with an alteration of biochemical characteristics of cardiac contractile proteins. Rats were made diabetic with intravenous injection of streptozotocin and hearts removed 8 weeks later for the isolation of myofibrils. The basal ATPase activity of myofibrils from diabetic hearts was significantly lower than that of the controls, suggesting the presence of some subtle structural and conformational changes in diabetic myofibrils. The activating effect of Mg ions on the myofibrillar actomyosin system of rat heart muscle was also demonstrated. Sodium dodecylsulfate gel electrophoresis showed the presence of myosin heavy chain, light chain 1 and 2, actin and troponin but failed to reveal differences in the patterns of these contractile proteins of light subunits between diabetics and controls. The deficiency in utilization of energy rich phosphates by the myofibrillar protein may be one of of the main mechanisms of cardiodepression observed in diabetic hearts. The cardiac myofibrillar ATPase activity may be one of useful measurements in evaluating pathophysiological states of cardiac contractile proteins.
Actins
;
Actomyosin
;
Adenosine Triphosphatases*
;
Animals
;
Cardiomyopathies
;
Contractile Proteins
;
Diabetes Mellitus
;
Diabetic Cardiomyopathies
;
Electrophoresis
;
Heart
;
Injections, Intravenous
;
Ions
;
Myocardium
;
Myofibrils
;
Myosin Heavy Chains
;
Phosphates
;
Rats*
;
Sodium
;
Streptozocin
;
Troponin
7.A Case of Primary Mucinous Adenocarcinoma of the Colon in Children.
Chi Ho YOON ; Kyung Ae LEE ; Jung Mo RYU ; Soon Hee CHOI ; Kyu Geun CHO
Journal of the Korean Pediatric Society 1985;28(11):1136-1140
No abstract available.
Adenocarcinoma, Mucinous*
;
Child*
;
Colon*
;
Humans
;
Mucins*
8.The Effect of Psychotrophic Drug on Serum Lipid, Lipoprotein and Apolipoprotein.
Seung Ho RYU ; In Kwa JUNG ; Dong Il KWAK
Journal of Korean Neuropsychiatric Association 1997;36(3):560-570
OBJECTIVES: Several studies suggest that psychotropic drugs may affect on lipid metabolism and body weight. And the differences of levels of seam lipids were observed in patients with several psychiatric disorders. Hence, in order to elucidate the effects of psychotropic drugs on serum lipid, lipoprotein and apolipoprotein, the authors estimated the serum lipid profile in the psych op harmacological treatment. METHODS: Thirty six patients with schizophrenia and 42 patients with depressive disorder or anxiety disorder were recruited from the inpatient psychiatric units and withdrawn from all psychotropic drugs at least far 3 months. The levels of seam total cholesterol, high-density lipoprotein cholesterol(HDL-C), trighlyceride, apolipoprotein A, apolipoprotein B, and lipoprotein(a) were measured before the treatment and after 2, 4, 8 and 12 weeks of the treatment. RESULTS: No statistically significant change was found on all serum lipid profiles in the antipsychotics group. However, the changes on serum total cholesterol, low-density lipoprotein (LDL-C), apolipoprotein A, and apolipoprotein B from the baseline to the following weeks have been observed in tricyclic antidepressants group. And the serum total cholesterol and apolipoprotein B have been observed to be changed from the baseline to the following weeks in the selective serotonin reuptake inhibitors poop. The changes on seam lipoprotein(a) were proved not to be statistically significant during all the psychotropic drugs treatment. CONCLUSION: These results implicate that all psychotropic drugs might affect on the lipid metabolism, especially for tricyclic antidepressants. Therefore, this implication could be important in clinical situation because the changes on serum lipid profiles may be related to the cardiovascular disease especially in psychiatric patients with the cardiovascular risk factor.
Antidepressive Agents, Tricyclic
;
Antipsychotic Agents
;
Anxiety Disorders
;
Apolipoproteins*
;
Body Weight
;
Cardiovascular Diseases
;
Cholesterol
;
Depressive Disorder
;
Humans
;
Inpatients
;
Lipid Metabolism
;
Lipoprotein(a)
;
Lipoproteins*
;
Psychotropic Drugs
;
Risk Factors
;
Schizophrenia
;
Serotonin Uptake Inhibitors
9.Pharmacotherapy of Anxiety Disorders in Older People.
Journal of Korean Geriatric Psychiatry 2006;10(2):70-75
Anxiety disorders are common psychiatric illnesses in the elderly. However, anxiety disorders in older people have not drawn much attention from researchers and clinicians alike, compared with late-life depression or dementia. The author searched for articles published from 1986 to 2006 using the key words including "anxiety", "elderly", "aged", and "pharmacological" therapy in the MEDLINE, PsychINFO, and KMbase in order to clarify effective pharmacological therapy in the elderly with anxiety disorders. Well designed studies for pharmacologic intervention in late-life anxiety disorders were rarely found. Nonetheless, studies on young adults demonstrated a number of pharmacological treatment options that can be applied to these patients. Pharmacologic treatments for the elderly include therapies using antideprssants, especially SSRI or SNRI, buspirone, or benzodiazepines. The latter requires special caution in the administration in the elderly because it can lead to adverse events. Therefore, well designed clinical trials are further needed to obtain optimal pharmacological intervention for the elderly with anxiety disorders.
Aged
;
Anxiety Disorders*
;
Anxiety*
;
Benzodiazepines
;
Buspirone
;
Dementia
;
Depression
;
Drug Therapy*
;
Humans
;
Young Adult
10.Extracorporeal Membrane Oxygenation for the Support of a Potential Organ Donor with a Fatal Brain Injury before Brain Death Determination.
Sung Wook CHANG ; Sun HAN ; Jung Ho KO ; Jae Wook RYU
Korean Journal of Critical Care Medicine 2016;31(2):169-172
The shortage of available organ donors is a significant problem and various efforts have been made to avoid the loss of organ donors. Among these, extracorporeal membrane oxygenation (ECMO) has been introduced to help support and manage potential donors. Many traumatic brain injury patients have healthy organs that might be eligible for donation for transplantation. However, the condition of a donor with a fatal brain injury may rapidly deteriorate prior to brain death determination; this frequently results in the loss of eligible donors. Here, we report the use of venoarterial ECMO to support a potential donor with a fatal brain injury before brain death determination, and thereby preserve donor organs. The patient successfully donated his liver and kidneys after brain death determination.
Brain Death*
;
Brain Injuries*
;
Brain*
;
Extracorporeal Membrane Oxygenation*
;
Humans
;
Kidney
;
Liver
;
Tissue and Organ Procurement
;
Tissue Donors*