1.Two cases of chorioangioma.
Hey Kyung OH ; Jun Ryul CHOI ; Tae Dong PARK ; Hum Rye PARK ; Young Suk LEE
Korean Journal of Obstetrics and Gynecology 1991;34(9):1322-1329
No abstract available.
Hemangioma*
3.Evaluation of the Biodurability of Polyurethane-Covered Stent Using a Flow Phantom.
Dong Hyun KIM ; Sung Gwon KANG ; Jung Ryul CHOI ; Ju Nam BYUN ; Young Chul KIM ; Young Moo AHN
Korean Journal of Radiology 2001;2(2):75-79
OBJECTIVE:To evaluate the biodurability of the covering material in retrievable metallic stents covered with polycarbonate polyurethane. MATERIALS AND METHODS: Using a peristaltic pump at a constant rate of 1ml/min, bile was recirculated from a reservoir through a long tube containing four stents. Each of these was removed from the system every two weeks and a radial tensile strength test and scanning electron microscopy (SEM) were performed. Each stent, removed at 2, 4, 6 and 8 weeks, was compared with a control stent not exposed to bile juice. RESULTS: Gross examination showed that stents were intact at 2 weeks, but at 4, 6 and 8 weeks cracks were observed. The size of these increased gradually in accordance with the duration of exposure, and at 8 weeks several large holes in the polyurethane membrane were evident. With regard to radial tensile strength, extension and peak load at break were 84.47% and 10.030 N/mm, 54.90% and 6.769 N/mm, 16.55% and 2.452 N/mm, 11.21% and 1.373 N/mm at 0, 2, 4 and 6 weeks, respectively. Scanning electron microscopy at 2 weeks revealed intermittent pitting and cracking, and examination at 4, 6 and 8 weeks showed that the size of these defects was gradually increasing. CONCLUSION: When the polyurethane membrane was exposed to bile, biodegradation was first observed at week two and increased gradually according to the duration of exposure.
Bile Acids and Salts/physiology
;
Biodegradation
;
Hydrogen-Ion Concentration
;
Microscopy, Electron, Scanning/*instrumentation
;
Phantoms, Imaging
;
*Polyurethanes
;
*Stents
;
Support, Non-U.S. Gov't
;
Tensile Strength
;
Time Factors
4.A Case of Pyogenic Ventriculitis Complicating Obstruction of Aqueduct of Sylvius.
Dong Ryul CHOI ; Duck Si BYUN ; In Soo LEE
Journal of Korean Neurosurgical Society 1974;3(1):85-90
A rare case of ventriculitis associated with the obstruction of aqueduct of Sylvius is reported and the pertinent literature reviewed. A 24 years old male, who had been suffering from a longstanding chronic pyogenic ear disease since childhood, was admitted to our clinic in Dec. 1973 with a comatose state. Contrast radiology showed the obstructive hydrocephalus with the occluded aqueduct of Sylvius, but neither intracerebral or intracerebellar space consuming mass presented. Cerebrospinal and ventricular fluid revealed a marked growth of Escherichia Coli. So ventriculitis complicating obstruction of the aqueduct of Sylvius due to chronic suppurative otitis media and mastoiditis was diagnosed in this patient, and treated by Torkildsen's operation with proper chemotherapy and resulted in good recovery. We experienced that ventriculitis initiated from meningitis might give rise to obstruction of the aqueduct of Sylvius and it could be considered as a brain abscess superimposed raised intracranial pressure from obstructive hydrocephalus.
Brain Abscess
;
Cerebral Aqueduct*
;
Coma
;
Drug Therapy
;
Ear Diseases
;
Escherichia coli
;
Humans
;
Hydrocephalus
;
Intracranial Pressure
;
Male
;
Mastoid
;
Mastoiditis
;
Meningitis
;
Otitis Media, Suppurative
;
Young Adult
5.A Case of Pyogenic Ventriculitis Complicating Obstruction of Aqueduct of Sylvius.
Dong Ryul CHOI ; Duck Si BYUN ; In Soo LEE
Journal of Korean Neurosurgical Society 1974;3(1):85-90
A rare case of ventriculitis associated with the obstruction of aqueduct of Sylvius is reported and the pertinent literature reviewed. A 24 years old male, who had been suffering from a longstanding chronic pyogenic ear disease since childhood, was admitted to our clinic in Dec. 1973 with a comatose state. Contrast radiology showed the obstructive hydrocephalus with the occluded aqueduct of Sylvius, but neither intracerebral or intracerebellar space consuming mass presented. Cerebrospinal and ventricular fluid revealed a marked growth of Escherichia Coli. So ventriculitis complicating obstruction of the aqueduct of Sylvius due to chronic suppurative otitis media and mastoiditis was diagnosed in this patient, and treated by Torkildsen's operation with proper chemotherapy and resulted in good recovery. We experienced that ventriculitis initiated from meningitis might give rise to obstruction of the aqueduct of Sylvius and it could be considered as a brain abscess superimposed raised intracranial pressure from obstructive hydrocephalus.
Brain Abscess
;
Cerebral Aqueduct*
;
Coma
;
Drug Therapy
;
Ear Diseases
;
Escherichia coli
;
Humans
;
Hydrocephalus
;
Intracranial Pressure
;
Male
;
Mastoid
;
Mastoiditis
;
Meningitis
;
Otitis Media, Suppurative
;
Young Adult
6.A case of Incontinentia Pigmenti.
Hyun Mo KOO ; Chun Dong KIM ; Byung Ryul CHOI ; Han Gu MOON ; Yong PARK ; Jin Gon JUN ; Jeong Ok HAH
Journal of the Korean Pediatric Society 1985;28(4):396-399
No abstract available.
Incontinentia Pigmenti*
8.A Case Report of Acute Nicotine Poisoning from Subcutaneous Injection of Nicotine Solution for Electronic Cigarette.
Jiun CHOI ; Dong Ryul KO ; Je Sung YOU ; Sung Phil CHUNG
Journal of The Korean Society of Clinical Toxicology 2017;15(1):60-64
Nicotine-poisoning related to the electronic cigarettes (e-cigarette) is increasing worldwide. Moreover, the American Association of Poison Control Centers has advised the public to use caution with e-cigarette devices and highly concentrated liquid nicotine after a surge in related poisonings. We report here the first case of nicotine poisoning from self-injected e-cigarette fluid in Korea. A 17-year-old male patient subcutaneously injected himself with 0.5 ml of nicotine solution for an electronic cigarette via the dorsum of his hand, after which he complained of nausea, vomiting, dizziness and dyspnea. His vital signs were within the normal range, but his mental status was drowsy. He was admitted for observation and the symptoms disappeared the following day. Sinus bradycardia with a rate of 45/min was observed on the third hospital day, but improved after 6 hours. He was discharged without complications.
Adolescent
;
Bradycardia
;
Dizziness
;
Dyspnea
;
Electronic Cigarettes*
;
Hand
;
Humans
;
Injections, Subcutaneous*
;
Korea
;
Male
;
Nausea
;
Nicotine*
;
Poison Control Centers
;
Poisoning*
;
Reference Values
;
Vital Signs
;
Vomiting
9.Lung Transplantation in Acute Respiratory Distress Syndrome Caused by Influenza Pneumonia.
Youjin CHANG ; Sang Oh LEE ; Tae Sun SHIM ; Sae Hoon CHOI ; Hyung Ryul KIM ; Yong Hee KIM ; Dong Kwan KIM ; Seung Il PARK ; Sang Bum HONG
Korean Journal of Critical Care Medicine 2015;30(3):196-201
Severe acute respiratory distress syndrome (ARDS) is a life-threatening disease with a high mortality rate. Although many therapeutic trials have been performed for improving the mortality of severe ARDS, limited strategies have demonstrated better outcomes. Recently, advanced rescue therapies such as extracorporeal membrane oxygenation (ECMO) made it possible to consider lung transplantation (LTPL) in patients with ARDS, but data is insufficient. We report a 62-year-old man who underwent LTPL due to ARDS with no underlying lung disease. He was admitted to the hospital due to influenza A pneumonia-induced ARDS. Although he was supported by ECMO, he progressively deteriorated. We judged that his lungs were irreversibly damaged and decided he needed to undergo LTPL. Finally, bilateral sequential double-lung transplantation was successfully performed. He has since been alive for three years. Conclusively, we demonstrate that LTPL can be a therapeutic option in patients with severe ARDS refractory to conventional therapies.
Extracorporeal Membrane Oxygenation
;
Humans
;
Influenza, Human*
;
Lung Diseases
;
Lung Transplantation*
;
Lung*
;
Middle Aged
;
Mortality
;
Pneumonia*
;
Respiratory Distress Syndrome, Adult*
10.Three Cases of Chronic Cerebral Paragonimiasis.
Kyung Won PARK ; Jae Woo KIM ; Sang Ho KIM ; Ki Jong CHOI ; Seong Ryul KIM ; Sung Man JEON
Journal of the Korean Neurological Association 1996;14(1):270-275
Although CNS involvement of paragonimiasis is not frequently encountered, it has been reported in 10-25% of clinical cases of all paragonimiasis. It causes various symptoms and signs including epilepsy, headache, hemiparesis, visual field defect or other neurologic deficits. Infestation usually occurs by ingestion of freshwater crabs or crayfish infected with Paragonimus metacercariae. We report three patients with chronic cerebral paragonimiasis, which were diagnosed by history, neurologic examination, radiological and serological evaluations, Two of them had history of ingestion of freshwater crabs or crayfish in childhood. Only one patient showed a positive enzyme-linked immunosorbent assay reaction for Paragonimus specific antibody in serum and CSF. Their clinical manifestations were seizure, headache, and visual field defect. In their plain skull X-rays, congregated round oval calcifications were recognized. Brain computed tomography of patients revealed pathognomonic findings of multiple, variable sized, round, calcified lesions surrounded by low density areas together with cortical atrophy in occipital, parietal, and temporal lobes.
Astacoidea
;
Atrophy
;
Brain
;
Eating
;
Enzyme-Linked Immunosorbent Assay
;
Epilepsy
;
Fresh Water
;
Headache
;
Humans
;
Metacercariae
;
Neurologic Examination
;
Neurologic Manifestations
;
Paragonimiasis*
;
Paragonimus
;
Paresis
;
Rabeprazole
;
Seizures
;
Skull
;
Temporal Lobe
;
Visual Fields