1.A Study on Mineral Changes on the Weathering Human Hair after Burial using EDX.
Won Kyu KIM ; Jeong Lae KIM ; Yong Seok NAM ; Yun Teak SHIM ; Kyu Sung HWANG
Korean Journal of Legal Medicine 2013;37(3):134-138
This study was undertaken to investigate mineral changes in weathered scalp hair after burial. EDX (energy dispersive X-ray spectroscopy) analysis was performed to measure the presence of minerals on the hair surface. Twelve scalp hairs, buried for 5-40 years, were chosen from deceased individuals buried in tombs in Soha-Ri, Kyonggi-Do, and other regions in Korea. Three normal hairs were used as the control group. EDX data showed that carbon, oxygen, and sulfur were detected in hair collected from all three burial grounds. In contrast, calcium was only detected in hair collected from tombs in Soha-ri. The amounts of calcium and sulfur were found to decrease with time for hair collected from tombs in Soha-ri. Similar results were observed with sodium for hair collected from other regions. These results show region specific mineral detection and a decrease in the concentration of minerals with time. Consequently, it is suggested that changes in minerals concentration in weathered hair could be used as basic data in the field of forensic medicine.
Burial
;
Calcium
;
Carbon
;
Forensic Medicine
;
Forensic Sciences
;
Hair
;
Humans
;
Korea
;
Minerals
;
Oxygen
;
Scalp
;
Sodium
;
Spectrometry, X-Ray Emission
;
Sulfur
;
Weather
2.Surgical treatment of hypothalamic hamartoma
Young Seok Park ; Yun Ho Lee ; Kyu-Won Shim ; Dong-Seok Kim
Neurology Asia 2010;15(Supplement 1):15-20
Hypothalamic hamartomas are often associated with early onset gelastic seizures, precocious puberty,
behavioral problem and suboptimal response to antiepiletptic drugs. Until now, four surgical options
have been reported to reduce seizure by >50%. Surgical excision have good seizure outcome but
postoperative complications were not infrequent, whether by pterional or transcallosal interforniceal
approach. Radiosurgery is noninvasive alternative to resective surgery but the effect usually does not
appear until several months later. Radiofrequency ablation is less invasive than surgical resection and
its effect is immediate, but lacks long term follow-up data. It also requires three dimensional analysis of
the lesion to enhance effi cacy and safety. As hypothalamic hamartoma is intrinsically epileptogenic and
epileptogenic discharges spread from the lesion, blocking the seizure propagation through endoscopic
disconnection is regarded as an effective and safer option. Surgical choice for a particular patient
should take into account the hamartoma’s size, location, surgeon’s preferences, possible complication
as well as the effect and risk of the various surgical methods. In the present review, open surgery,
endoscopic disconnection, radiosurgery and radiofrequency ablation are discussed.
3.Long Term Magnetic Resonance Angiography Follow-up in Moyamoya Disease.
Nam Kyu YOU ; Kyu Won SHIM ; Young Seok PARK ; Jung Hee KIM ; Dong Seok KIM ; Joong Uhn CHOI
Korean Journal of Cerebrovascular Surgery 2007;9(3):188-192
OBJECTIVE: Revascularization is an effective treatment for the ischemic symptom of moyamoya disease. Indirect revascularization is also effective. Magnetic resonance angiography (MRA) has the ability for collateral formation that is equivalent to conventional angiography. This study analyzed the results of indirect revascularization by MRA. METHODS: A total of 25 patients underwent bilateral EDAS for the management of moyamoya disease. All patients underwent MRA after surgery more than 24 months later. The collateral formation was graded as Good, Fair, and Poor. The clinical outcome was assessed as Excellent, Good, Fair, and Poor. RESULTS: Good collateral formation was 32 sides of the EDAS, and fair was 18. An excellent clinical outcome was obtained in 15 patients, Good in 8, Fair in 1, and Poor in 1. There was a significant correlation between the preoperative symptom, gender, and the clinical outcome. CONCLUSION: In the management of ischemic moyamoya disease, indirect revascularization has been the golden standard with remarkably low morbidity and mortality. Moreover, and MRA can replace conventional angiography in the follow-up of moyamoya patients.
Angiography
;
Follow-Up Studies*
;
Humans
;
Magnetic Resonance Angiography*
;
Mortality
;
Moyamoya Disease*
4.Anesthesia for Fetal Surgery: Twin Reversed Arterial Perfusion Sequence.
Kyu Dae SHIM ; Yon Hee SHIM ; Hyo Eun KIM ; Jong Seok LEE
Korean Journal of Anesthesiology 2002;42(5):690-693
It is important to consider the fetal, uteroplacental, and maternal issues when choosing anesthetic technique for fetal surgery. The twin reversed arterial perfusion (TRAP) sequence, or the acardiac anomaly, occurs in 1:100 monozygous multiple pregnancies and in 1:35,000 births. The TRAP sequence is characterized by placental vascular arterio-arterial anastomosis between twin fetuses, one an acardiac/acephalic twin that receives its blood flow from the normal pumping twin, thereby endangering the normal twin by high output cardiac failure. The acardiac twin is nonviable, and perinatal mortality in the pump cotwin exceeds 50% because of cardiac failure and prematurity. This can be managed by fetal surgery. We report on a patient with a 26-wk gestation complicated by an acardiac/acephalic fetus anesthetized for surgical umbilical cord ligation.
Anesthesia*
;
Female
;
Fetus
;
Heart Failure
;
Humans
;
Ligation
;
Parturition
;
Perfusion*
;
Perinatal Mortality
;
Pregnancy
;
Pregnancy, Multiple
;
Umbilical Cord
5.Sedative Effect and Cardiovascular Stability of Lidocaine during Endotracheal Intubation under Bispectral Index (BIS) Monitoring.
Kyu Dae SHIM ; Jong Seok LEE ; Yon Hee SHIM ; Jang Hwan JUNG ; Sang Beom NAM
Korean Journal of Anesthesiology 2002;42(2):161-166
BACKGROUND: Lidocaine's sedative effect has not been known well. The purpose of this study was to evaluate its sedative and cardiovascular effects during induction of anesthesia. METHODS: Twenty patients were randomly allocated to group I or II, with or without lidocaine 1.5 mg/kg intravenously (IV) before induction, respectively. The BIS, blood pressure and heart rate were measured at before and 2 minutes after lidocaine IV injection, preintubation, and 1, 2, 3 and 5 minutes after tracheal intubation. The enflurane concentrations were continuously maintained at 2 volume%. RESULTS: The BIS of group I was more decreased at 1 and 2 minutes after intubation than those of group II. The systolic blood pressures of group I were less increased at 1 and 2 minutes after intubation than those of group II. The diastolic blood pressures and heart rates of group I were not different from those of group II at each stage of the procedure. CONCLUSIONS: Lidocaine reduced BIS and blunted the intubation-induced systolic hypertensive response. In addition it is thought that it has a sedative effect and is effective to maintain cardiovascular stability after tracheal intubation.
Anesthesia
;
Blood Pressure
;
Enflurane
;
Heart Rate
;
Humans
;
Hypnotics and Sedatives*
;
Intubation
;
Intubation, Intratracheal*
;
Lidocaine*
6.Severe Hypotension Caused by Valve Malfunction in the Self-Inflating Bag-Valve Unit: A case report.
Yon Hee SHIM ; Jong Seok LEE ; Jung In LEE ; Dong hun CHOE ; Kyu Dae SHIM
Korean Journal of Anesthesiology 2004;46(3):360-362
Mishaps related to valve malfunction in a self-inflating bag-valve unit can lead to fatal complications. We report a case of severe hypotension that resulted from the locking of the Laerdal valve in the inspiratory position during transport in the operating room. A 36 year old man had undergone an off-pump coronary artery bypass graft. Immediately before leaving the operating room, severe hypotension developed abruptly. But an EKG showed only a reduction of heart rate. We started closed cardiac massage with an intravenous bolus injection of epinephrine 0.5 microgram and reconnected the anesthesia breathing circuit. The patient was manually ventilated using the anesthesia reservoir bag. Vital signs immediately recovered. At that time, the patient's abdomen was distended and we suspected an expiratory abnormality. The self-inflating bag-valve unit was tested with an anesthesia reservoir bag as a test lung. Expiration did not occur. Another self-inflating bag-valve unit was substituted and normal ventilation was restored. It is essential that before use, a self-inflating bag-valve unit should be tested for proper function during both expiration and inspiration using a test lung such as, an anesthesia reservoir bag.
Abdomen
;
Adult
;
Anesthesia
;
Coronary Artery Bypass, Off-Pump
;
Electrocardiography
;
Epinephrine
;
Heart Massage
;
Heart Rate
;
Humans
;
Hypotension*
;
Lung
;
Operating Rooms
;
Respiration
;
Resuscitation
;
Transplants
;
Ventilation
;
Vital Signs
7.The Effects of Intravenous Lidocaine and Alfentanil on Airway Irritability and Hemodynamic Stability during Inhaled Induction with Desflurane: A Randomized Double-Blinded Studdy.
Korean Journal of Anesthesiology 2005;49(4):461-465
BACKGROUND: Because desflurane can cause airway irritability when used to induce anesthesia, drugs aimed at reducing airway irritability. This study investigated the possible differences between lidocaine and alfentanil on the decrease in the airway irritability during desflurane inhaled induction. METHODS: 75 patients (25 in each groups) were assigned randomly to induce anesthesia with inhaled desflurane. The breathing circuit was primed with desflurane 6% in 50% O2 and 50% N2O. After pretreatment with 2% lidocaine (1 mg/kg), or alfentanil (10microgram/kg), or saline (7 ml) intravenously 2 minutes before inducing anesthesia, each patient breathed the gas mixture through a tight fitting facemask. The time to loss of consciousness, cough, laryngospasm, excitatory movement and hemodynamics were checked before and after inhalation. RESULTS: The time to loss of consciousness, cough and excitatory movement were lower significantly between in the control group and other groups, but there was no difference between the 2% lidocaine and alfentanil groups. The blood pressure and heart rate were lower in the alfentanil group, but the heart rate was similar. CONCLUSIONS: These results explain that intravenous 2% lidocaine appears to be useful. However, Intravenous alfentanil can also reduce the airway irritability and stabilize the hemodynamics significantly when desflurane is used to induce anesthesia.
Alfentanil*
;
Anesthesia
;
Blood Pressure
;
Cough
;
Heart Rate
;
Hemodynamics*
;
Humans
;
Inhalation
;
Laryngismus
;
Lidocaine*
;
Respiration
;
Unconsciousness
8.Juvenile Rheumatoid Arthritis in Children with Ebstein-barr Virus Infection.
Young Seok SHIM ; Joon Sik KIM ; Kyung Kyu LEE ; Kyu Man LEE ; Kwang Nam KIM
Journal of Rheumatic Diseases 2012;19(1):19-24
OBJECTIVE: Juvenile rheumatoid arthritis (JRA) may occur in the wake of infection with several viruses including Ebstein-barr virus (EBV). EBV remains an interesting target. To determine the possible role of EBV infections in the clinical course of JRA, we attempt to demonstrate the radiologic changes and the frequency prescription of etanercept rather than classic therapy. METHODS: Total of 87 patients with JRA, who were hospitalized in Hangang Sacred Hospital and Kangnam Sacred Hospital in Seoul from 2002 to 2010, were assessed serologically for EBV infection (anti EBV VCA IgM and IgG) at admission. Patients with JRA were devided 2 groups, one is EBV VCA IgG (+) JRA patients who had been infected before and another is EBV VCA IgG (-) JRA patients who had not. RESULTS: EBV VCA IgG (+) were seen in 55 patients (63.2%). 31 boys (76%) and 24 girls (52%) were infected with EBV. The mean age of patients of EBV (+) JRA was 8.2+/-3.6 years and that of EBV (-) JRA was 5.3+/-3.4 years. 7 of EBV (+) JRA (13%) developed radiologic change within 2 years, compare with none of EBV (-) JRA. 22 of EBV (+) JRA (49%) with JRA did not respond to the classic therapy, compare with 7 of EBV (-) JRA (22%). CONCLUSION: JRA patients with past EBV infection were older in ages, more in male, more radiologic changes, needed more biologic treatment than those without past EBV infection.
Arthritis, Juvenile Rheumatoid
;
Child
;
Epstein-Barr Virus Infections
;
Herpesvirus 4, Human
;
Humans
;
Immunoglobulin G
;
Immunoglobulin M
;
Male
;
Prescriptions
;
Receptors, Tumor Necrosis Factor
;
Viruses
;
Etanercept
9.Effectiveness of C1 Laminectomy for Chiari Malformation Type 1: Posterior Fossa Volume Expansion and Syrinx-Volume Decrease Rate
Jun Kyu HWANG ; Eun Kyung PARK ; Kyu-Won SHIM ; Dong-Seok KIM
Yonsei Medical Journal 2023;64(3):191-196
Purpose:
This study aimed to analyze the effect of foramen magnum decompression with C1 laminectomy (C1L) for Chiari malformation type 1 (CM-1) in terms of improving clinical symptoms, expanding posterior fossa volume, and decreasing syrinx volume.
Materials and Methods:
Between January 2007 and June 2019, 107 patients with CM-1 were included. The median patient age was 13±13 years (range: 9 months–60 years), female-to-male ratio was 1:1, and average length of tonsil herniation was 13±5 mm (range: 5–24 mm). Surgical techniques were divided into four groups based on duraplasty or C1L usage. Among the study subjects, 38 patients underwent duraplasty and had their syrinx volumes measured separately on serial magnetic resonance imaging. A three-dimensional visualization software was used to evaluate the syrinx-volume decrease rate.
Results:
Bony decompression exhibited a mere 20% volume expansion of the lower-half posterior fossa. C1L offered a 3% additional volume expansion, which rose to 5% when duraplasty was added (p=0.029). There were no significant differences in complication rate when C1L was combined with duraplasty (p=0.526). Syrinx volumes were analyzed in 38 patients who had undergone duraplasty. Among them, 28 patients who had undergone duraplasty without C1L demonstrated a 5.9% monthly decrease in syrinx volume, which was 7.5% in the remaining 10 patients with C1L (p=0.040).
Conclusion
C1L was effective in increasing posterior fossa volume expansion, both with and without duraplasty. A more rapid decrease in syrinx volume occurred when C1L was combined with duraplasty.
10.There is not Different Between the Patient-Controlled Lumber Epidural and Thoracic Epidural Analgesia with Morphine for Postthoracotomy Pain.
Jeoag Uk HAN ; Yaag Sik SHIN ; Ji Eung KIM ; Jong Seok LEE ; Kyu Dae SHIM
Korean Journal of Anesthesiology 1997;32(4):588-591
BACKGROUND: With different injection levels, the dose-requirements of epidural opioids association with lipid solubility are controversial. The purpose of this study was to compare the effect of patient controlled lumbar(L group) and thoracic(T group) epidural morphine on dose-requirements, analgesia and side effects after thoracotomy. METHODS: Twenty patients were randomly assigned into one of two groups. Before the induction of general anesthesia, the epidural taps with 17G with Tuohy needle were done on the 6th or 7th thoracic and 2nd or 3rd lumbar intervertebral levels, respectively. The epidural catheter tips were placed 3~4 cm above the needle tips in either groups . Morphine 3 mg in 3 ml normal saline was administered via the epidural catheter in all the patients immediately at the end of surgical manipulation. PCA/basal infusion dose and lockout interval was 0.02 mg/once, 0.08 mg/hr and 5min respectively. After the initial dose dose-requirements were checked at 4, 8, 24 and 48hour and pain was assessed on visual analogue scale at 1, 4, 8, 24 and 48hour. Side effects were observed. RESULTS: There were no significant difference between groups in the dose-requirements of morphine, their analgesia and side effects. CONCLUSIONS: Lumbar epidural morphine provides postoperative analgesia after thoracotomy that is clinically indistinguishable from that provided by thoracic epidural morphine with respect to dosage, quality of analgesia and side effect.
Analgesia
;
Analgesia, Epidural*
;
Analgesia, Patient-Controlled
;
Analgesics
;
Analgesics, Opioid
;
Anesthesia, General
;
Catheters
;
Humans
;
Morphine*
;
Needles
;
Solubility
;
Thoracotomy