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Jae Hyuk Lee 4 Articles
Sulforaphane Post-treatment Had No Protective Effects in Paraquat-intoxicated Rats
Gui Sang Jang, Jae Hyuk Lee, Kyuseok Kim, You Hwan Jo, Joong Eui Rhee, Kyoungbun Lee, Chan Jong Park, Chang Woo Kang, Soohoon Lee, Joonghee Kim
J Trauma Inj. 2013;26(1):6-13.
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  • 5 Download
AbstractAbstract PDF
PURPOSE
Sulforaphane is a naturally-occurring isothiocyanate abundant in broccoli. It has been suggested as a promising antioxidant. In this study, the therapeutic effect of sulforaphane in paraquat intoxication was investigated.
METHODS
Paraquat was administered via the tail vein, after which sulforaphane or a vehicle (4% DMSO) was administered intraperitoneally 15 minutes after paraquat administration. Histological injury, lipid peroxidation, plasma cytokine (IL-6, IL-10), and nitric oxide were measured. In addition, the effect of sulforaphane on survival in paraquat-intoxication was observed.
RESULTS
Regarding histological injury, lipid peroxidation, and plasma cytokine and nitric-oxide response, sulforaphane administration showed no protective effects in paraquat-intoxicated rats. Rather, it increased mortality (log rank p=0.03) and caused lipid peroxidation, as well as plasma cytokine and nitric-oxide production, to be increased.
CONCLUSION
Sulforaphane had no therapeutic effect on paraquat-intoxicated rats; rather, it increased mortality.
Summary
Effect of Therapeutic Hypercapnia on Systemic Inflammatory Responses in Hemorrhagic Shock in Rats
Kyeong Won Kang, You Hwan Jo, Kyuseok Kim, Jae Hyuk Lee, Joong Eui Rhee
J Korean Soc Traumatol. 2012;25(1):17-24.
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AbstractAbstract PDF
PURPOSE
This study was performed to investigate whether therapeutic hypercapnia could attenuate systemic inflammatory responses in hemorrhagic shock in rats.
METHODS
Male Sprague-Dawley rats were mechanically ventilated and underwent pressure-controlled (mean arterial pressure: 38+/-1 mmHg) hemorrhagic shock. At 10 minutes after the induction of hemorrhagic shock, the rats were divided into the normocapnia (PaCO2=35-45 mmHg, n=10) and the hypercapnia (PaCO2=60-70 mmHg) groups. The PaCO2 concentration was adjusted by using the concentration of inhaled CO2 gas. After 90 minutes of hemorrhagic shock, rats were resuscitated with shed blood for 10 minutes and were observed for 2 hours. The mean arterial pressure (MAP) and the heart rate were monitored continuously, and the results of arterial blood gas analyses, as well as the plasma concentrations of interleukin (IL)-6, IL-10, and nitrite/nitrate were compared between the normocapnia and the hypercapnia groups.
RESULTS
The MAP and the heart rate were not different between the two groups. The plasma concentration of IL-6 was significantly lower in the hypercapnia group than in the normocapnia group (p<0.05). The IL-10 concentration was not different and the IL-6 to IL-10 ratio was significantly lower in the hypercapnia group compared to the normocapnia group. The plasma nitrite/nitrate concentration of the hypercapnia group was lower than that of the normocapnia group.
CONCLUSION
Therapeutic hypercapnia attenuates systemic inflammatory responses in hemorrhagic shock.
Summary
The Accuracy of the ICD-10 Code for Trauma Patients Visiting on Emergency Department and the Error in the ICISS
Jae Hyuk Lee, Min Seob Sim
J Korean Soc Traumatol. 2009;22(1):108-115.
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AbstractAbstract PDF
PURPOSE
We designed a retrospective study to measure the accuracy of the ICD-10 (International Classification of Disease-10) code for trauma patients. We also analyzed the error of the ICISS (International Classification of Disease based Injury Severity Score) due to a missing or an incorrect ICD-10 code.
METHODS
For the measuring the accuracy of the ICD-10 code for trauma patients in a tertiary teaching hospital's emergency department, two board certified emergency physician performed a retrospective chart review. The ICD-10 code was classified as a main code or a sub-code. The main code was defined as the code of the main department of treatment, and the sub-code was defined as a code other than the main code. We calculated and compared two ICISS for each patient one by using both the existing code and the other by using a corrected code. We compared the proportions of severe trauma (defined as an ICISS less than 0.9) between when the existing code and the corrected code was used respectively.
RESULTS
We reviewed the records of 4287 trauma patients who had been treated from July 2008 to November 2008. The accuracy of the main code, the sub-code of emergency department, main-code, the subcode of hospitalized patients were 97.1%, 59.8%, 98.2% and 57.0%, respectively. Total accuracy of the main and sub-code of emergency department and of hospitalized patients were 91.4% and 58.6%. The number of severe trauma patients increased from 33 to 49 when the corrected code was used in emergency department and increased from 35 to 60 in hospitalized patients.
CONCLUSION
The accuracy of the sub-code was lower than that of the main code. A missing or incorrect subcode could cause an error in the ICISS and in the number of patients with severe trauma.
Summary
The Clinical Characteristics of Amusement-park-related Injuries
Jae Hyuk Lee, Min Seob Sim, Hyoung Gon Song
J Korean Soc Traumatol. 2009;22(1):103-107.
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  • 1 Download
AbstractAbstract PDF
PURPOSE
There are no reports on amusement-park-related injuries in Korea. Thus, the objective of this study was to describe traumatic injury patterns that occurring in an amusement park.
METHODS
The medical records of an infirmary were retrospectively reviewed. From January 1, 2008, to December 31 2008, patients who were transferred to the nearest emergency departments of hospitals for the purpose of further test and treatment were enrolled. Demographics, injury types and involved parts of the body were analyzed.
RESULTS
A total of 3,608 patients visited an infirmary for traumatic injury and about two-thirds had soft tissue injuries. Of those, 191 patients (5.3%) were transferred to the emergency department of a hospital. Of the patients who were transferred to a hospital, laceration and contusion were the responsible injuries for about half. Laceration was the most common injury in pediatric patients, and a sprain or a strain was the most common in adult patients. The most commonly injured parts of the body were the extremities in adult patients. However, in pediatric patients, injuries of the head, face and neck were similar to injuries of the extremities.
CONCLUSION
Soft tissue injury was the most common amusement-park-related injury. Laceration was the most common reason to transfer a patient to a hospital. There were differences in injury type and injured part of the body between adult and pediatric patients.
Summary

J Trauma Inj : Journal of Trauma and Injury