1.Surgical Treatment of Fractures of the Ankle.
Min Young CHUNG ; Won Suck RHI ; Won Cheul SONG ; Soo Myeong LEE ; Sang Dong SEO
The Journal of the Korean Orthopaedic Association 1997;32(3):741-748
The ankle is an important joint supporting the entire musculoskeletal system during standing and walking. Current opinion has emphasized necessity of anatomical reduction and rigid internal fixation for a displaced or unstable fracture of the ankle. The purpose of this study was to evaluate the correlation of the adequate surgical operative methods and postoperative care with prognosis. The authors analysed 104 cases of ankle fracture, treated operatively in Department of Orthopedic Surgery of Dae-Han Hospital from January 1991 to December 1994, followed up more than one year. The results were as follows: 1. According to the classification of Lauge-Hansen and Danis-Weber, the most common type was supination-external rotation and type B, respectively. 2. The most common cause of injury was slip down and the others were traffic accident, fall down and direct trauma. 3. According to the criteria of Meyer, the result of treatment was good or excellent in 94 cases (90.4%) radiologically and in 91 cases (87.5%) clinically. 4. The complications were 5 cases of traumatic arthritis, 3 cases of malunion, 2 cases of non-union and 1 case of infection. 5. The early ROM exercise after accurate reduction and rigid internal fixation was very important in treatment of fracture of the ankle.
Accidents, Traffic
;
Ankle Fractures
;
Ankle*
;
Arthritis
;
Classification
;
Joints
;
Musculoskeletal System
;
Orthopedics
;
Postoperative Care
;
Prognosis
;
Walking
2.Epidemiological Aspects of Hepatitis E Virus Infections between South Korea and Japan
Myeong-Jin LEE ; Won-Chang LEE ; Young Hwan KWON
Korean Journal of Aerospace and Environmental Medicine 2022;32(1):27-31
Purpose:
Hepatitis E outbreaks are a serious public health concern in the world. The pilots or air traffic controllers can be incapacitated by severe hepatitis symptoms. If the symptoms of acute hepatitis do not improve, it is not suitable for aviation duties.In this study, we compare of incidence status of hepatitis E virus (HEV) infections, and epidemic aspects between South Korea (from here on, ‘Korea’) and Japan.
Methods:
The raw data on confirmed of HEV infection cases were obtained from the National Notified Disease Surveillance System of Korea Diseases Control and Prevention Agency, the Ministry of Health and Welfare in Korea, and the National Epidemiological surveillance of Infectious Diseases surveillance system, administered by the National Institute of Infectious Diseases in Japan. Statistically significant differences between the epidemiological aspects and risk factors were determined using the Pearson’s chi-squared test or paired t-test. All data analyses were performed in Microsoft Excel 2010 (Microsoft, Redmond, WA, USA).
Results:
There were 191 cases of HEV infected cases with a prevalence rate (PR) of 0.37 per 100,000 populations of Korea in 2020. During the same year in Japan, there were 454 cases with a PR of 0.36. When compared, there is statistically none significantly differences. Moreover, both PR per 100,000 populations of HEV infections in habitat of two countries were compared, in the provinces (0.39) of Korea were much higher than that in capital city of Seoul (0.27; P<0.01), but that in Japan were capital city of Tokyo (0.84) was higher than that of the provinces (0.30; P<0.01). Male to female morbidity ratio was 1.65 and 3.78 in Korea and Japan, respectively. The distribution by the age adjusted groups were similar in Korea and Japan that the total cases occurred in the over 40-years-old age bracket, clearly showing a higher incidence in the elderly.
Conclusion
We believed that the HEV are a zoonotic virus, and human occurs mainly through the fecal contamination of water and consumption of contaminated meat from infected animals. In addition, HEV infection can be a problem for pilots and air traffic controllers as well, requiring further investigation and research.
3.Epidemiological Aspects of Zika Virus Infection Cases among Overseas Travelers in Korea and Japan
Myeong-Jin LEE ; Won-Chang LEE ; Young Hwan KWON
Korean Journal of Aerospace and Environmental Medicine 2022;32(3):89-93
Purpose:
Zika virus (ZIKV) infection is a mosquito-borne Flavivirus disease. we investigated the epidemiological aspects and status of imported ZIKV infection cases in Korea (Republic of) and Japan during 2016–2020.
Methods:
Raw data of ZIKV infection cases from the Korea Diseases Control and Prevention Agency, and the National Institute of infectious Diseases in Japan, 2016– 2020.
Results:
There were 33 cases of ZIKV infection in Korea and 21 cases in Japan between 2016 and 2020. Cumulative incidence rate per 1,000,000 overseas travelers (OTs) of Korea (0.30) did not substantially differ that of Japan (0.27), respectively.We observed the ZIKV infected cases of male (69.7% of total cases) were much more than that for female (30.3%) in OTs of Korea (P<0.05). However, while there was none significant differences level between males (52.4%) and females (47.6%) in OTs of Japan. On the other hands, the distribution by adjusted-age groups for ZIKV infections were similar between Korean and Japanese that total cases occurred in the over 20 to 59-years old age, clearly more showing a higher infected of ZIKV (P<0.01). The presumptive origin imported ZIKV infection cases in Korean were as follows; Southeast Asia (81.8% of total cases) and Central & South Americas (18.2%), and those in Japan, these were Southeast Asia (42.9%) and Central & South Americas (42.9%) and Oceania (4.7%), respectively.
Conclusion
This study demonstrates that there is a similar pattern of imported ZIKV disease cases in Korea and Japan. Therefore, to prevent ZIKV infections, greater attention should be paid to individuals who are planning to travel to the presumptive regions of ZIKV.
4.Prenatal diagnosis of a fetus with recurrent translocation 21 trisomy by chorionic villus sampling.
Sei Kwang KIM ; Yong Won PARK ; Young Ho YANG ; Chan Ho SONG ; Myeong Seon LEE
Korean Journal of Obstetrics and Gynecology 1991;34(8):1158-1162
No abstract available.
Chorion*
;
Chorionic Villi Sampling*
;
Chorionic Villi*
;
Female
;
Fetus*
;
Pregnancy
;
Prenatal Diagnosis*
;
Trisomy*
5.Characteristics of Potassium Channel in the Isolated Rat Detrusor Muscle.
Myeong Soo JANG ; Eun Mee CHOI ; Jeoung Hee HA ; Kang Youn LEE ; Won Joon KIM
Yeungnam University Journal of Medicine 1994;11(2):363-374
The purpose of this study was to investigate the characteristics or the potassium channels existing in the rat urinary bladders. Smooth muscle strips of rat detrusor urinae were examined by isometric myography. Relaxation responses of detrusor muscle strips to the three potassium channel openers pinacidil, a cyanoguanidine derivative, BRL 38227, a benzopyran derivative and RP 52891, a tertrahydrothiopyran derivative were examined. The potassium channel openers reduced the basal tone, and the rank order of potency was RP 52891>pincidil>BRL 38227. Procaine, an inhibitor of the voltage-sensitive potassium channel tended to increase the basal tone, but it did not affect the relaxant effects of the calcium-activated potassium channel opener did not antagonize the relaxant effects, but it reduced the Emax of RP 52891 and BRL 38227. Glibenclamide, an inhibitor of the ATP-sensitive potassium channel, antagonized the relaxant effects of pinacidil, RP 52891 and BRL 38227 reducing the Emax of RP 52891 and BRl 38227. Galanin which inhibits secretion of insulin through opening the ATP-sensitive potassium channels in pancreatic β-cells rather increased the basal tone of the isolated detrusor strips. These results suggest that the urinary bladder of the rat has mainly the ATP-sensitive, glibenclamide sensitive potassium channel, which is a different type from that in the pancreatic β-islet cells.
Animals
;
Cromakalim
;
Galanin
;
Glyburide
;
Insulin
;
KATP Channels
;
Muscle, Smooth
;
Myography
;
Pinacidil
;
Potassium Channels*
;
Potassium Channels, Calcium-Activated
;
Potassium*
;
Procaine
;
Rats*
;
Relaxation
;
Urinary Bladder
6.Deep Neck Abscesses in Children and Adolescents: 10 Year Experience in Two General Hospitals.
Eunhee KIM ; Ju Hee JEON ; Won Uk LEE ; So Young KIM ; Eun Ryoung KIM
Korean Journal of Pediatric Infectious Diseases 2011;18(2):163-172
PURPOSE: The purpose of this study was to review our recent experiences with deep neck abscesses in children and adolescents and to provide helpful information in treatment and diagnosis by comparing them with those in other available literatures. METHODS: Medical records of 36 children and adolescents admitted for deep neck abscess at two hospitals from January 2000 to October 2010 were reviewed retrospectively. RESULTS: Male to female ratio was 1.4 : 1 and the mean age was 6.5 years. Painful neck swelling and fever were the most frequent symptoms in patients under thirteen years of age whereas trismus and headache were frequent symptoms in patients over fourteen years of age. Submandibular space was the most common site of deep neck abscess in patients under thirteen years of age, whereas peritonsillar space was the most common site in patients over fourteen years of age. The results of bacterial cultures were positive in 61.5% of drained cases. Staphylococcus aureus was the most commonly identified bacteria in 6 patients (37.5%) and 5 of them were under 2 years of age. Twenty six patients received surgical drainage while the others were treated with antibiotics only. There were no statistically significant differences in the durations of admission, fever after admission, and antibiotic treatment between surgical and medical treatment groups. CONCLUSION: The common sites of deep neck abscess, associated symptoms, and causative organisms were different between children and adolescents. As there were no differences in durations of admission, fever, or antibiotics treatments between surgical and medical treatment groups, surgical drainage may be avoided by early recognition and suspicion. However, if there is no improvement of symptoms or size of abscesses within 48-72 hours of antibiotic treatment, surgical drainage should be considered.
Abscess
;
Adolescent
;
Anti-Bacterial Agents
;
Bacteria
;
Child
;
Drainage
;
Female
;
Fever
;
Headache
;
Hospitals, General
;
Humans
;
Male
;
Medical Records
;
Neck
;
Staphylococcus aureus
;
Trismus
7.Re-evaluation of Association between Thrombotic Diasthesis and Legg-Calve-Perthes Disease.
Jae In AHN ; Won Ik LEE ; Ye Yeon WON ; Myeong Ryeol SONG ; Young Ae LIM ; Yun Sik KWAK
The Journal of the Korean Orthopaedic Association 1999;34(1):189-194
Legg-Calve-Perthes disease (LCP) has been reported to be associated with hypofibrinolysis and a deficiency in coagulation. The goal of this prospective study was to confirm or refute these findings and to establish a guide for a screening test. The coagulation systems of twenty-three patients with Legg-Calve-Perthes disease were evaluated by means of the tests which included prothrombin time, activated partial thromboplastin time, antithrombin-III (AT-III), protein C, protein S, lipoprotein(a), and anticardiolipin antibody (ACA). Study subjects were 21 males and 2 females. Mean age was 8.7 years. No abnormal results were found for Antithrombin-III and Protein S, but 2 patients had low Protein C level. Two of 23 patients had Lipoprotein(a) values greater than 30 mg/dl. Another two patients had positive finding for Anticardiolipin antibody. There were no statistical differences in all parameters between Catterall group stage in the patients with Legg-Calve-Perthes disease. We were unable to establish an association between thrombotic tendency and Legg-Calve-Perthes disease based on this prospective study. So, routine screening of patients with Legg-Calve-Perthes disease for abnormalities of antithrombotic factors would be not warranted.
Antibodies, Anticardiolipin
;
Female
;
Humans
;
Legg-Calve-Perthes Disease*
;
Lipoprotein(a)
;
Male
;
Mass Screening
;
Partial Thromboplastin Time
;
Prospective Studies
;
Protein C
;
Protein S
;
Prothrombin Time
8.Operative Treatment of Fracture of The Proximal Humerus
Min Young CHUNG ; Won Suck RHI ; Jin Young CHUNG ; Soo Young JEUN ; Soo Myeong LEE ; Won Cheul SONG
The Journal of the Korean Orthopaedic Association 1995;30(6):1820-1826
Recently, the incidence of fracture and dislocation of the proximal humerus has been increased with increment of traffic accident and industrial accident. Although most proximal humeral fractures can be treated satisfactorily by simple conservative treatment, the displaced fracture or fracture-dislocatiion of the proximal humerus demands special treatment and judgement. It has been reported that the results of the surgical treatment of the unstable fracture of the proximal humerus was better than that of conservative treatment. The authors analysed 32 cases displaced fracture or fracture-dislocation of the proximal humerus treated operatively which were followed up more than 1 year at the Dae Han Hospital from June, 1990 to May, 1993. The obtained results were as follows; l. According to Neer's classification, there were 2-part fracture in 3 cases(9%), 3-part in 17 cases(54%), 4-part in 2 cases(6%), fracture-dislocation in 8 cases(25%) and head splitting in 2 cases(6%). 2. The clinical results by Neer's criteria were excellent in 9 cases(28%), good in 14 cases(44%), fair in 7 cases(22%), and poor in 2 cases(6%) among the 32 cases. 3. The complication were limitation of motion in 4 cases, avscular necrosis of humeral head in 2 cases, nonunion in 1 case, delayed union in 1 case, ectopic ossification in 1 case and malunion in 1 case. 4. In the unstable fracture of the proximal humerus treated by accurate reduction and rigid fixation with intensive rehabilitation can be obtained, relatively satisfactory results because of the inability to maintain an acceptable closed reduction.
Accidents, Occupational
;
Accidents, Traffic
;
Classification
;
Dislocations
;
Head
;
Humeral Head
;
Humerus
;
Incidence
;
Necrosis
;
Ossification, Heterotopic
;
Rehabilitation
;
Shoulder Fractures
9.Guideline for Management of Ruptured Aneurysm: Preliminary Reoport.
Neurointervention 2007;2(1):36-42
The introduction of detachable coils in treating cerebral aneurysm patients has revolutionized the management of this disease in the past 15 years. The advancement of imaging resolution and the use of three dimensional imaging not only with catheterized conventional angiography, but also with CTA and MRA have enabled a more thorough evaluation and accurate diagnosis of cerebral aneurysms prior to intervention and has also aided in the treatment process. Therefore, it is essential to organize past studies and create an up to date general diagnostic guideline.
Aneurysm
;
Aneurysm, Ruptured*
;
Angiography
;
Catheters
;
Diagnosis
;
Humans
;
Intracranial Aneurysm
10.Attitude Favorability towards Organ Donation in Family Members of Brain Dead Organ Donors.
Jaeheon LEE ; Won Jung LEE ; Jae Myeong LEE
The Journal of the Korean Society for Transplantation 2014;28(4):219-225
BACKGROUND: Analyzing the attitudes toward organ donation and the factors that influence such attitudes is fundamental to improving the quality of management for the process of brain dead organ donation. METHODS: We interviewed 23 primary carers of donors after a minimum period of one year post organ donation from a single hospital, from 2008 to 2011. This telephone survey analyzed factors including relationship with the donor and the impact of such factors on making the decision for donation and attitude towards organ donation. RESULTS: With respect to the carers' relationship with the donor, seven carers who participated in the interview were spouses (30.4%), six were parents (26.0%), three were offspring (13.0%), and seven were siblings (30.4%). Ten of the decision makers (43.4%) were not legal priority holders. Twenty-two interviewees (95.6%) experienced no regret for their decision to go through with the donation. Fifteen participants (65.1%) were willing to donate their own organs in case of brain death, and the favorability towards organ donation was significantly related to the satisfaction with their experience of medical services during the process of organ donation. CONCLUSIONS: Organ donation after brain death is still viewed favorably by carers even after the bereavement period. Positive attitude and favorability toward organ donation were significantly related to the satisfaction with the medical service. We suggest interventions to improve the quality of medical services in order to promote organ donation.
Bereavement
;
Brain Death*
;
Caregivers
;
Humans
;
Parents
;
Siblings
;
Spouses
;
Telephone
;
Tissue and Organ Procurement*
;
Tissue Donors*