1.Dacryocystorhinostomy.
Jong Ryoul KIM ; Byung Hak KWAK ; Byung Min KIM ; Chang Soon BYUN ; Dong Kyu YANG
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1992;18(1):76-80
No abstract available.
Dacryocystorhinostomy*
2.A Case of Hypereosinophilic Syndrome.
Chang Moo LEE ; Chull Kwon CHUNG ; Soon Ok BYUN ; Ji Sub OH
Journal of the Korean Pediatric Society 1983;26(2):193-197
No abstract available.
Hypereosinophilic Syndrome*
3.Topographic distribution of the carcinoma in situ of the uterine cervix.
Young Ran CHUNG ; Jang Soon CHANG ; Ho Sun CHOI ; Ji Soo BYUN
Korean Journal of Obstetrics and Gynecology 1993;36(7):1178-1183
No abstract available.
Carcinoma in Situ*
;
Cervix Uteri*
;
Female
4.A Case of Delayed Hemolytic Transfusion Reaction with Acute Renal Failure Caused by Anti-E Antibody.
Mun Su KANG ; Jai Won BYUN ; Chang Ok YOON ; In Soon KIM
Korean Journal of Blood Transfusion 1999;10(2):221-227
A delayed hemolytic transfusion reaction (DHTR) is the result of delayed anamnestic alloantibody response four to fourteen days after transfusion of apparently compatible blood. Most DHTRs are very mild and may not be recognized clinically. Some are manifested only by anemia. Only a few cases are severe enough to induce a massive hemolytic reaction followed by frank renal failure. Recently, we experienced a case of DHTR with acute renal failure (ARF) due to anti-E. A 21-year-old woman received compatible four units of packed red cells after right artificial total hip replacement arthroplasty due to juvenile rheumatoid arthritis. She had a history of transfusion 4 years ago. Fourteen days after the transfusion, she showed a fall in hematocrit, hemoglobinuria and a positive indirect antiglobulin test, and accompanied by ARF. Anti-E was identified in the patient's serum by antibody screening and identification test at that time. She recovered from ARF after hemodialysis with conservative management. However, eventually, she died due to disseminated intravascular coagulopathy.
Acute Kidney Injury*
;
Anemia
;
Arthritis, Juvenile
;
Arthroplasty
;
Arthroplasty, Replacement, Hip
;
Blood Group Incompatibility*
;
Coombs Test
;
Female
;
Hematocrit
;
Hemoglobinuria
;
Humans
;
Mass Screening
;
Renal Dialysis
;
Renal Insufficiency
;
Young Adult
5.Predictors Determining Outcome in Diffuse Brain Injury Patients.
Jae Chil CHANG ; Won Han SHIN ; Hack Gun BAE ; Bum Tae KIM ; Soon Kwan CHOI ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1996;25(11):2242-2249
A retrospective study of predictors determing outcome was carried out in a consecutive series of 104 patients, who had suffered from diffuse brain injury between December 1989 and April 1995, at the Department of Neurosurgery, Soonchunhyang University Hospital. The clinical, laboratory and radiological factors affecting the outcome in patients were analyzed and correlation between the factors and Glasgow outcome scale were statistically assessed. The major results were as follows: Significant predictors of poor outcome were old age, time interval within 5 hours from onset to admission, full dilated pupils or anisocoria, lower Glasgow coma scale, seizure, body temperature above 38 degrees C, PaO2 below 70mmHg, blood sugar above 160mg/dl, platelet count less than 100,000/mm3, prothrombin time less than 80%, lesions in more than 2 locations on CT & MRI and operative cases. Glasgow coma scale, age and temperature were demonstrated as the most significant predictors among the above factors by discriminant analysis. 2) Sex , kind of accidents, associated injuries, systolic blood pressure, pulse rate, respiration rate, PaCO2, base excess, serum sodium, bleeding time, coagulation time, and skull fracure were not significant influences on the outcome. According to the above results, the predictors of poor outcome should be considered as factors in assessing prognosis for treatment of diffuse brain injury.
Anisocoria
;
Bleeding Time
;
Blood Glucose
;
Blood Pressure
;
Body Temperature
;
Brain Injuries*
;
Glasgow Coma Scale
;
Glasgow Outcome Scale
;
Heart Rate
;
Humans
;
Magnetic Resonance Imaging
;
Neurosurgery
;
Platelet Count
;
Prognosis
;
Prothrombin Time
;
Pupil
;
Respiratory Rate
;
Retrospective Studies
;
Seizures
;
Skull
;
Sodium
6.Delayed Facial Palsy Following Microvascular Decompression in Hemifacial Spasm Patients.
Bum Tae KIM ; Sun Chul HWANG ; Jae Chil CHANG ; Won Han SHIN ; Soon Kwan CHOI ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1999;28(9):1332-1336
OBJECTIVE: Microvascular decompression(MVD) for hemifacial spasm(HFS) is well established. However delayed postoperative facial palsy has not been substantially reported. The authors reviewed patients with HFS who underwent MVD in our institution to evaluate the post-operative courses with special attention to the development of delayed facial palsy. METHODS: Records of 144 cases(137 patients) from 1988 to 1997 were reviewed. Of these patients, 12(8.3%) developed delayed facial palsy. Follow-ups via chart and phone records were available for 10 of 12 patients. RESULTS: Reviews of these 12 cases demonstrated that 3 men, 9 women of with average age of 53(range 45-60) had delayed facial palsy. Among them, 2 had repeated operation. The preoperative duration of symptoms averaged 12 years(range 1-30) and 4 patients had mild preoperative weakness. All were improved their HFS within 7 days after MVD. Offending vessels were anterior inferior cerebellar artery(AICA) in 7. Five of these were meatal branches and 2 were sandwich type compressions. One case was combined compression of AICA and posterior inferior cerebellar artery. Three to 7 pieces of Teflon felt were necessary for the decompression of offender. The onset of weakness occurred invariably between postoperative day 6 and 11. Two cases had associated complications. The one was hearing loss and the other was meningitis accompanied by cerebrospinal fluid otorrhea. Ten cases received steroids following the onset of their facial palsies. Duration of follow up of 10 cases was 21months(3months-5years). Three cases showed complete recovery at 4, 8 and 12 weeks, respectively. Four patients have improved to House Grade II at 5 weeks and remaining three showed continuing improvement until last follow-up. CONCLUSIONS: Delayed facial palsy following MVD in HFS patients is not uncommon, being 8.3% in our series. It occurs consistently 1-2 weeks postoperatively. Possible causes include facial nerve exit zone injury with Teflon felt or delayed facial nerve edema. Spontaneous recovery usually occur within several weeks.
Arteries
;
Cerebrospinal Fluid Otorrhea
;
Criminals
;
Decompression
;
Edema
;
Facial Nerve
;
Facial Paralysis*
;
Female
;
Follow-Up Studies
;
Hearing Loss
;
Hemifacial Spasm*
;
Humans
;
Male
;
Meningitis
;
Microvascular Decompression Surgery*
;
Polytetrafluoroethylene
;
Steroids
7.CO2 Laser Effect on blood Vessel Repair and Coagulative Ability.
Soon Kwan CHOI ; In Chang LEE ; Jae Won DO ; Won Han SHIN ; Bark Jang BYUN ; In Soo LEE
Journal of Korean Neurosurgical Society 1985;14(1):49-60
Lasers have used safely to and in the resection of highly vascular tumors or arteriovenous malformation. As far as blood vessel coagulation, arteries up to 2mm in diameter and veins up to 3mm in diameter can be reliably sealed with the Nd-YAG laser, and lesser size of vessels can be coagulated with the CO2 laser. Another advantage of laser is to be a useful tool for small vessel repair or anastomosis without microsuture technique. The aim of this experiment was to investigate intensity and duration of exposure with the CO2 laser for vessel coagulation and repair. 36 rats weighing 200 to 250 gm, were used in this study. For vessel coagulation of extracranial arteries and veins, power density between 10 and 50 watts/cm2(W) was applied with handpiece, and for vessel repair or anastomosis 2 W was applied with micromanipulator. The results obtained were as follows : 1) The artery was perforated immediately over 10 W with 0.5 seconds of exposure of smaller focal beam. 2) The artery was constricted in its diameter in defocused beam with 30-40 W, and perforated with 50 W. 3) The lower limit of venous coagulation was 15 W, 0.5 sec. of exposure and 2 mm of focal beam diameter. 4) The lower limit or arterial coagulation was 10 W, 5 sec. of exposure, 4 mm of focal beam diameter, and exposure time was reduced to 3 sec. at 20 W. 5) The repair or anastomosis of artery was accomplished with 2 W, 0.05 sec. of exposure of 0.2 mm of focused beam by 6 times of delivery, and the delivery times could be successfully reduced to half under the overlying thin blood clot film on the anastomosis site of the artery. 6) In the histological examination, the entire layer of coagulated vessel wall on the laser delivered side disclosed marked constriction and destruction. On the anastomosis site, re-endothelialization began from 3 days, and completed by 2 weeks after operation.
Animals
;
Arteries
;
Arteriovenous Malformations
;
Blood Vessels*
;
Constriction
;
Lasers, Gas*
;
Lasers, Solid-State
;
Rats
;
Veins
8.A Case of Schizencephaly.
Soon Kwan CHOI ; Back Chang BYUN ; Hwa Dong LEE ; Kyu Woang LEE ; Kon HUH
Journal of Korean Neurosurgical Society 1973;2(1):97-100
Yakovlev demonstrated that the Schizencephalies appear to result from injury to developing cerebral vesicles in the second month of intrauterine life. There is a total loss of neurons in restricted symmetrical zones of each developing hemisphere and on either side of the resulting cleft-shaped defects are evidences of subtotal injury to developing neuroblasts. A case of a 4 years old male with Schizencephaly is reported.
Child, Preschool
;
Humans
;
Male
;
Malformations of Cortical Development*
;
Neurons
9.Clinical Factors for the Development of Posttraumatic Hydrocephalus after Decompressive Craniectomy.
Il CHOI ; Hyung Ki PARK ; Jae Chil CHANG ; Sung Jin CHO ; Soon Kwan CHOI ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 2008;43(5):227-231
OBJECTIVE: Earlier reports have revealed that the incidence of posttraumatic hydrocephalus (PTH) is higher among patients who underwent decompressive craniectomy (DC). The aim of this study was to determine the influencing factors for the development of PTH after DC. METHODS: A total of 693 head trauma patients admitted in our hospital between March 2004 and May 2007 were reviewed. Among thee, we analyzed 55 patients with severe traumatic brain injury who underwent DC. We excluded patients who had confounding variables. The 33 patients were finally enrolled in the study and data were collected retrospectively for these patients. The patients were divided into two groups: nonhydrocephalus group (Group I) and hydrocephalus group (Group II). Related factors assessed were individual Glasgow Coma Score (GCS), age, sex, radiological findings, type of operation, re-operation and outcome. RESULTS: Of the 693 patients with head trauma, 28 (4.0%) developed PTH. Fifty-five patients underwent DC and 13 (23.6%) developed PTH. Eleven of the 33 study patients (30.3%) who had no confounding factors were diagnosed with PTH. Significant differences in the type of craniectomy and re-operation were found between Group I and II. CONCLUSION: It is suggested that the size of DC and repeated operation may promote posttraumatic hydrocephalus in severe head trauma patients who underwent DC.
Brain Injuries
;
Coma
;
Confounding Factors (Epidemiology)
;
Craniocerebral Trauma
;
Craniotomy
;
Decompressive Craniectomy
;
Humans
;
Hydrocephalus
;
Incidence
;
Retrospective Studies
10.Morphometric Measurement of the Anatomical Landmark in Anterior Cervical Microforaminotomy.
Jae Chil CHANG ; Hyung Ki PARK ; Hack Gun BAE ; Sung Jin CHO ; Soon Kwan CHOI ; Park Jang BYUN
Journal of Korean Neurosurgical Society 2006;39(5):340-346
OBJECTIVE: The lack of anatomical knowledge for the anterior cervical microforaminotomy is liable to injure the neurovascular structures. The surgical anatomy is examined with special attention to the ventral aspect exposed in anterior cervical microforaminotomy. METHODS: In 16 adult formalin fixed cadaveric cervical spine, the author measured the distances from the medical margin of the longus colli to the medical wall of the ipsilateral vertebral artery and the angle for the ipsilateral vertebral artery. The distances from the lateral margin of the posterior longitudinal ligament to the medial margin of the ipsilateral medial wall of the vertebral artery, to the ipsilateral dorsal root ganglion was measured too. RESULTS: The distance from the medial margin of the longus colli to the ipsilateral vertebral artery was 13.3~14.7mm and the angle for the ipsilateral vertebral artery was 41~42.5 degrees. The range of distance from the lateral margin of the posterior longitudinal ligament to the ipsilateral vertebral artery was 11.9~16.1mm, to the ipsilateral dorsal root ganglion was 11.6~12.9mm. CONCLUSION: These data will aid in reducing neurovascular injury during anterior cervical approaches.
Adult
;
Cadaver
;
Formaldehyde
;
Ganglia, Spinal
;
Humans
;
Longitudinal Ligaments
;
Spine
;
Vertebral Artery