1.Status of functional capacity of the emergency care system in Cambodia: a cross-sectional survey
Duk Hwan KO ; Kyung Hwan KIM ; Junseok PARK ; Dong Wun SHIN ; Hyunjong KIM ; Joon Min PARK ; Hoon KIM ; Woochan JEON ; Jung Eon KIM
Journal of the Korean Society of Emergency Medicine 2022;33(6):599-615
Objective:
The establishment of a proper emergency care system can significantly decrease the number of deaths and disabilities. However, this is neglected in many low- and middle-income countries, including Cambodia. At present, many Cambodian hospitals lack designated emergency departments, formal triage systems, and staff trained in emergency medicine. This study sought to measure the functional capacity of the Cambodian emergency care system corresponding to each hospital level using the Emergency Care Assessment Tool (ECAT).
Methods:
We conducted a survey from April 19, 2021, to April 27, 2021, by distributing survey sheets to a total of eight Cambodian medical staff who were invited to a hospital in South Korea for an educational program. The ECAT comprises items evaluating the capability of hospitals to perform signal functions for each of the six emergent sentinel conditions that could occur prior to death. We analyzed the data by categorizing the hospitals into basic, intermediate, and advanced levels.
Results:
Basic-level hospitals had weaknesses in signal functions related to altered mental status and trauma care. The intermediate-level hospital showed weaknesses in signal functions related to respiratory failure, altered mental status, shock, and trauma care. Advanced-level hospitals had weaknesses in signal functions related to respiratory failure, trauma, and shock.
Conclusion
Our survey shows that most Cambodian hospitals lack the capability to perform the emergency signal functions expected at each level. We believe that this gap can be bridged with proper customized education targeting medical staff based on the level of their hospital and ensuring a proper supply of medical devices.
2.Analysis of Accident Mechanisms in Unhelmeted Motorcycle Accident Victims.
Sang Chul KIM ; Jae Wan LEE ; Duk Hwan KO ; Kwang Je BAEK ; Ho Sung JUNG ; Sang O PARK ; Dae Young HONG ; Kyeong Ryong LEE
Journal of the Korean Society of Emergency Medicine 2013;24(1):70-76
PURPOSE: Due to their vulnerability and relatively high driving speed, motorcycles have been associated with a high risk of sustaining multiple severe injuries after traffic accidents. We sought to investigate sustained injuries and the association of accident mechanisms with injury severity for unhelmeted motorcycle accident victims. METHODS: This study was conducted as an observational retrospective study. Unhelmeted motorcycle accident victims who visited the study hospital from January 2010 to December 2011 were included. Data were obtained from medical records, ambulance run-sheets, and telephone interviews. Accident mechanisms were divided into collision with an obstacle, single vehicle accident, collision with another vehicle, collision by another vehicle, and falling accident from the viewpoint of energy. Glasgow coma scale (GCS), Revised trauma score (RTS), and Injury Severity Score (ISS) were analyzed for comparison of injury severity according to the accident mechanisms. RESULTS: Of 404 patients who visited the study hospital, 165 patients were included; 87.3%(144/165) were male, and 78.8%(130/165) were drivers. The incidence of motor cycle accident showed the highest in the teenager and in time during 18:00~24:00 o'clock. Lower extremity was the most common site of injury, followed by upper extremity, head, and face etc. Injury due to falling was the most severe injury mechanism, followed by collision with another vehicle, collision by another vehicle, and a single vehicle and an obstacle (p=0.013). CONCLUSION: Lower extremity injury was the most common injury site in unhelmeted motorcycle accidents, and motorcycle accidents by fall and collision with another vehicle should be considered as a severe mechanism of injury.
Accidents, Traffic
;
Adolescent
;
Ambulances
;
Glasgow Coma Scale
;
Head
;
Humans
;
Incidence
;
Injury Severity Score
;
Interviews as Topic
;
Lower Extremity
;
Male
;
Medical Records
;
Motorcycles
;
Retrospective Studies
;
Upper Extremity
3.Methylation and Immunoexpression of p16INK4a Tumor Suppressor Gene in Primary Breast Cancer Tissue and Their Quantitative p16INK4a Hypermethylation in Plasma by Real-Time PCR.
Jae Jun LEE ; Eunkyung KO ; Junhun CHO ; Ha Young PARK ; Jeong Eon LEE ; Seok Jin NAM ; Duk Hwan KIM ; Eun Yoon CHO
Korean Journal of Pathology 2012;46(6):554-561
BACKGROUND: The p16INK4a gene methylation has been reported to be a major tumorigenic mechanism. METHODS: We evaluated the methylation status of the p16INK4a genes in 231 invasive breast cancer and 90 intraductal carcinoma specimens using a methylation-specific polymerase chain reaction and p16 protein expression using immunohistochemistry. The quantity of cell-free methylated p16INK4a DNA in the plasma samples of 200 patients with invasive breast cancer was also examined using a fluorescence-based real-time polymerase chain reaction assay. RESULTS: The frequencies of p16INK4a methylation in invasive and intraductal tumors were 52.8% (122/231) and 57.8% (52/90), respectively. The p16 protein was overexpressed in 145 of the 231 invasive carcinomas (62.8%) and 63 of the 90 intraductal carcinomas (70%). High p16 expression in invasive carcinomas correlated significantly with a high histologic grade, a negative estrogen receptor and progesterone receptor status, p53 immunoreactivity and high Ki-67 expression with immunohistochemistry. In addition, the methylation index of p16INK4a was significantly higher in the cancer patients than the normal controls (p<0.001). CONCLUSIONS: High p16 immunoreactivity correlated with a loss of differentiation in breast carcinomas and high frequency of p16INK4a promoter methylation in both invasive and intraductal carcinomas, suggesting it may be involved in the pathogenesis of breast cancer.
Breast
;
Breast Neoplasms
;
Carcinoma, Intraductal, Noninfiltrating
;
DNA
;
Estrogens
;
Genes, p16
;
Genes, Tumor Suppressor
;
Humans
;
Immunohistochemistry
;
Methylation
;
Plasma
;
Polymerase Chain Reaction
;
Real-Time Polymerase Chain Reaction
;
Receptors, Progesterone
4.Effects of Abdominal Obesity and Health Related Physical Fitness in Arterial Stiffness of Korean Males.
Yong Hwan KIM ; Hae Mi JEE ; Sung Il SONG ; Joo Chan KIM ; Duk Han KO ; Young Soo JIN
The Korean Journal of Sports Medicine 2012;30(1):16-22
The purpose of this study was to find out the relationship between waist circumference, muscular strength, flexibility, and brachial-ankle pulse wave velocity (baPWV). Furthermore, the cut-off values of the physical fitness factors according to the baPWV were also calculated. The study was derived with total of 1,562 males (1,116 middle-aged and 446 old-aged). They were tested participant's baPWV, waist circumference, cardiopulmonary fitness, grip strength and flexibility. The results of this study is that the baPWV of the middle-aged men did not show significant changes in relationship with the waist circumference and physical fitness factors. The old-aged group with normal abdominal fat and high physical fitness level (group 4) showed significant baPWV values in comparison to those with waist circumference and low physical fitness levels (group 1); cardiorespiratory fitness p=0.026, grip strength p=0.000, flexibility p=0.000. The cut-off values of the physical fitness such as cardiorespiratory fitness, grip strength, flexibility according to the baPWV were 31.2 mL/kg/min (area under curve [AUC], 0.692; p=0.027), 37.0 kg (AUC, 0.588; p=0.014), and 1.0 cm (AUC, 0.589; p=0.014), respectively. In conclusion, these results demonstrate that waist circumference, cardiorespiratory fitness as well as muscular strength and flexibility effect inversely on arterial stiffness.
Abdominal Fat
;
Hand Strength
;
Humans
;
Male
;
Obesity, Abdominal
;
Physical Fitness
;
Pliability
;
Pulse Wave Analysis
;
Vascular Stiffness
;
Waist Circumference
5.Jejunal varix bleeding with extrahepatic portal vein obstruction after pylorus-preserving pancreatoduodenectomy: report of two cases.
Seung Duk LEE ; Sang Jae PARK ; Hyun Boem KIM ; Sung Sik HAN ; Seong Hoon KIM ; Tae Suk YOU ; Young Kyu KIM ; Seong Yeon CHO ; Soon Ae LEE ; Young Hwan KO ; Eun Kyung HONG
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2012;16(1):37-42
We present 2 patients showing afferent jejunal varix bleeding around hepaticojejunostomy caused by extrahepatic portal vein obstruction after pylorus-preserving pancreatoduodenectomy (PPPD). The case 1 was a 58-year-old woman who had recurrent anemia and hematochezia 3 years after undergoing PPPD. On the portography, the main portal vein was obliterated and collaterals around hepaticojejunostomy were developed. After percutaneous transhepatic balloon dilatation and stent placement through the obliterated portal vein, jejunal varices had disappeared and thereafter no bleeding occurred for 32 months. The case 2 was a 71-year-old man who had frequent melena 7 years after PPPD. Portal stent insertion was first tried, but failed due to severe stenosis of the main portal vein. Therefore, meso-caval shunt operation was attempted in order to reduce the variceal flow. Although an episode of a small amount of melena occurred one month after the shunt operation, there was no occurrence of bleeding for the next 8 months. For the treatment of jejunal varices, a less invasive approach, such as the angiographic intervention of stent insertion, balloon dilatation, or embolization is recommended first. Surgical operations, such as a shunt or resection of the jejunal rim, could be considered when noninvasive approaches have failed.
Aged
;
Anemia
;
Constriction, Pathologic
;
Dilatation
;
Female
;
Gastrointestinal Hemorrhage
;
Hemorrhage
;
Humans
;
Melena
;
Middle Aged
;
Pancreaticoduodenectomy
;
Portal Vein
;
Portography
;
Stents
;
Varicose Veins
6.The Prevalence of the Metabolic Syndrome and Cut-off Values of Power and Flexibility in Elderly Males.
Young Hwan KIM ; Sung Il SONG ; Hye Young LEE ; Hae Mi JEE ; Joo Chan KIM ; Han Joon LEE ; Duk Han KO ; So Jung KIM ; Shin Ae KIM ; Jin Wook CHUNG ; Young Soo JIN
The Korean Journal of Sports Medicine 2010;28(2):125-131
The purpose of the study was to find out the age-adjusted odds ratio of the metabolic syndrome and the associated cut-off values of the physical fitnessfactors of the elderly males in their 60s and 70s. 477 participants were tested for the cardiorespiratory fitness (VO2max), power, flexibility as well as blood battery and abdominal circumference for the metabolic syndrome status. As a result, 32.2% of the participants had metabolic syndrome with the associated cut-off values of the power and flexibility as 29.0 cm (areas under curve [AUC]: 0.57, p=0.029) and 0.6 cm (AUC: 0.54, p=0.028), respectively. The cardiorespiratory fitness showed no significant difference prevalence rate between groups. The prevalence rate was calculated by dividing the participants into high and low groups. The metabolic syndrome prevalence rate for the low power group was 1.63 (p<0.030) and low flexibility group was 2.01 (p<0.002). The cardiovascular fitness showed no significant prevalence rate.
Aged
;
Humans
;
Male
;
Odds Ratio
;
Pliability
;
Prevalence
7.Coagulase-Positive Staphylococcal Necrotizing Fasciitis Subsequent to Shoulder Sprain in a Healthy Woman.
Hyeung June KIM ; Dong Heon KIM ; Duk Hwan KO
Clinics in Orthopedic Surgery 2010;2(4):256-259
Necrotizing fasciitis (NF) is a deep infection of the subcutaneous tissue that progressively destroys fascia and fat; it is associated with systemic toxicity, a fulminant course, and high mortality. NF most frequently develops from trauma that compromises skin integrity, and is more common in patients with predisposing medical conditions such as diabetes mellitus, atherosclerosis, alcoholism, renal disease, liver disease, immunosuppression, malignancy, or corticosteroid use. Most often, NF is caused by polymicrobial pathogens including aerobic and anaerobic bacteria. NF caused by Staphylococcus aureus as a single pathogen, however, is rare. Here we report a case of NF that developed in a healthy woman after an isolated shoulder sprain that occurred without breaking a skin barrier, and was caused by Staphylococcus aureus as a single pathogen.
*Arm
;
Coagulase/metabolism
;
Fasciitis, Necrotizing/*etiology/microbiology/pathology/surgery
;
Female
;
Humans
;
Middle Aged
;
Shoulder Joint/*injuries
;
Sprains and Strains/*complications
;
Staphylococcal Infections/*etiology/microbiology
;
Staphylococcus aureus/enzymology/isolation & purification
8.Operative Treatment for Ulnar Styloid Process Fractures with Unstable Intraarticular Distal Radius Fractures.
Ju Yong SHIN ; Dong Heon KIM ; Duk Hwan KO ; Hyeung June KIM
Journal of the Korean Society for Surgery of the Hand 2009;14(1):12-17
PURPOSE: To evaluate the radiological and clinical outcomes of the operative treatment for the unstable distal radius fractures with displaced ulnar styloid process fractures. MATERIALS AND METHODS: From 2002 to 2005, 17 patients with unstable distal radius fractures with displaced ulnar styloid process fractures were treated operatively, using external fixation or internal fixation for distal radius and open reduction with tension band wiring for ulnar styloid process fractures. We evaluated postoperative outcomes with Mayo wrist score, range of motion, ulnar side wrist pain, wrist stress test, grip strength as well as radiological evaluation. RESULTS: All ulnar styloid process fractures were completely united, and according to Mayo wrist score, 7 cases(41%) were excellent, 8 cases(47%) were good. 14 cases(82%) had no ulnar wrist pain and 15 cases(88%) had grip strength more than 50% when compared with the normal side. Posterior instability of ulnar head occurred at 1 case. CONCLUSION: We got acceptable clinical and radiological results of operative treatment of ulnar styloid process fractures and concluded that ulnar styloid process fractures combined with distal radius fractures should be carefully evaluated and treated operatively according to their fracture types.
Exercise Test
;
Hand Strength
;
Head
;
Humans
;
Radius
;
Radius Fractures
;
Range of Motion, Articular
;
Wrist
9.Interactive Effects of Forward, Backward Walking Exercise and Pelvic Floor Muscle Exercise on Sexual Function and Functional Fitness in the Elderly Male Population.
Young Soo JIN ; Kwang Lae KIM ; Hye Young LEE ; Eun Kyung PARK ; Sung Il SONG ; Yong Hwan KIM ; Duk Han KO ; Tai Young AHN
Journal of the Korean Geriatrics Society 2009;13(1):31-38
BACKGROUND: To assess the effect of forward, backward walking exercise and pelvic floor muscle exercise on sexual function and functional fitness in elderly males. METHODS: Twenty two elderly males participated in this study. They were divided into two groups. The Complex Exercise(CE) group(n=11) performed the forward, backward walking exercise(3 days/week, 12 weeks) and pelvic floor muscle exercises(PFME; 5 days/week, 12 weeks). The PFME group(n=11) only performed PFME(5 days/week, 12 weeks). Both groups performed the PFME in the same manner. Outcomes were evaluated by IIEF-5(5-item version of the interna- tional index of erectile function), 6min walk, and 30sec & 1min sit-to-stand before exercise training, and at week 4, week 8, and week 12. RESULTS: Total scores and erectile function scores had significant interaction effect(p<0.05) in group and period. 6min walk wassignificantly different(p<0.05) in exercise period and 30sec(p<0.001) & 1min sit-to-stand(p<0.01) had signi- ficant interaction effectin group and period. CONCLUSION: Three months of forward, backward walking and pelvic floor muscle exercises did not have significant positive effects on sexual function and functional fitness in elderly males.
Aged
;
Exercise
;
Humans
;
Male
;
Muscles
;
Pelvic Floor
;
Sesquiterpenes
;
Walking
10.Comparison of (18F)FDG PET/CT and CT/MRI for the Diagnosis of Recurrent or Metastatic Disease after Treatment: In Head and Neck Cancer Patients.
Jin Hwan KWON ; Mi Hee JUNG ; Ji Ho KO ; Kyeng Seung OH ; Young Duk CHO ; Kang Dae LEE ; Seok Mo LEE
Journal of the Korean Radiological Society 2007;56(6):527-535
PURPOSE: We evaluated the accuracy of 18FFDG PET/CT for the detection of recurrence or metastasis after treatment in patients with primary head and neck cancer, and compared the results with those of CT/MRI. MATERIALS AND METHODS: We studied 34 patients with the diagnosis of head and neck cancer, who underwent treatment and follow up with 18FFDG PET/CT and CT/MRI. The patients were divided into two subgroups based on the difference in follow-up time interval and the type of treatment. Accuracy was evaluated by follow-up information and histopathology findings. The results of the 18FFDG PET/CT and CT/MRI were compared by statistical analysis. RESULTS: For the 18FFDG PET/CT results, 19 FDG uptake lesions were detected in 17 patients. Among these lesions, 18 were confirmed as recurrent or metastatic lesions and one as an inflammatory reaction from radiation therapy. Four lesions that had high FDG uptake were not detected by the CT/MRI. The sensitivity and specificity were 100% and 94.4% for the 18FFDG PET/CT and 77.8% and 94.4% for the CT/MRI (p<0.05). For the subgroup that received radiation therapy, 18FFDG PET/CT was more sensitive than CT/MRI (sensitivity = 100% vs. 63.6%, p<0.05). CONCLUSION: The results of this study showed that 18FFDG PET/CT was a useful screening modality for detecting recurrent or metastatic disease after treatment of patients with head and neck cancer, especially post-radiation.
Diagnosis*
;
Follow-Up Studies
;
Head and Neck Neoplasms*
;
Head*
;
Humans
;
Mass Screening
;
Neoplasm Metastasis
;
Positron-Emission Tomography and Computed Tomography*
;
Recurrence
;
Sensitivity and Specificity

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