1.Comparison between the Surveillance Definitions for Nosocomial Pneumonia Published by the CDC in 1996 and 2002.
Hyo Jung LEE ; Jae Sim JEONG ; Hyun Kyun KI ; Sang Il LEE
Korean Journal of Nosocomial Infection Control 2009;14(1):51-59
BACKGROUND: This is a retrospective, descriptive study, evaluating the observed agreement between 1996 & 2002 Centers for Disease Control and Prevention (CDC) definitions of nosocomial pneumonia (NP) for medical intensive care unit (MICU) and surgical intensive care unit (SICU) patients. METHODS: A total of 476 adult patients who were over 15 years of age and had been admitted to the MICU & SICU of a university hospital between August 1, 2005 and August 1, 2007 were enrolled. Data were collected from electronic medical records according to the 1996 & 2002 CDC definitions of NP. RESULTS: According to the 1996 CDC definitions of NP, there were a total of 116 NP cases and incidence rate was 11.6 per 1,000 patient-days; when analyzed with the 2002 CDC definitions of NP, 75 cases met the criteria and the incidence rate was 7.5 per 1,000 patient-days. Kappa value measuring agreement between the two definitions was 0.67 (95% confidence interval 0.601-0.706). When 1996 CDC definitions were compared with 2002 CDC definitions, sensitivity, specificity, positive predictive value, and negative predictive value were 93.3, 88.5, 60.3, and 98.6%, respectively. CONCLUSION: Even though the aforementioned NP criteria had been applied to the same study population, the number of patients that met the definitions changed depending on which criteria had been used. Therefore, it is necessary to consider the differences when making a comparison.
Adult
;
Centers for Disease Control and Prevention (U.S.)
;
Electronic Health Records
;
Humans
;
Incidence
;
Critical Care
;
Intensive Care Units
;
Pneumonia
;
Retrospective Studies
;
Sensitivity and Specificity
2.COVID-19 Vaccination and Herd Immunity
Journal of Korean Diabetes 2021;22(3):179-184
Vaccination has been used for the prevention and eradication of communicable diseases such as smallpox, polio, and measles. Herd immunity and immunity threshold have already been conceptualized for the prevention of outbreaks and pandemicity of these diseases. Coronavirus infectious disease-19 (COVID-19) is the second pandemic coronavirus disease of the 21st century. Vaccination has been conducted since December 2020 in an attempt to control the pandemic. The morbidity and incidence of COVID-19 has decreased since the initiation of the vaccination program within Israel, the United Kingdom, and the United States. However, irregular vaccine rollout and uneven distribution of vaccine is a major barrier to vaccine access. Moreover, genetic variants of the severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) could be a barrier to immunity.
3.Clinical Trial on the Hypertensive Effect of Bunazosin.
Ki Young OH ; Kyung Soo KIM ; Jeong Hyun KIM ; Heon Kil LIM ; Bang Hun LEE ; Chung Kyun LEE
Korean Circulation Journal 1988;18(4):719-724
The clinical trial was carried out with Bunazosin in 31 patients with essential hypertension. The results were as follows : 1) Before and after 1, 2, 4, 6, and 8 weeks of medications, the overall average systolic and distolic blood pressure were 166.5+/-21.8/105.7+/-10.6, 152.7+/-17.2/99.8+/-11.1, 149.5+/-18.1/98.4+/-11.7, 148.5+/-16.9/97.3+/-11.3, 148.5+/-16.7/95.6+/-10.9 and 144.0+/-14.9/94.2+/-11.1mmHg. As a result, blood pressure significantly fell within 1week of medication, and marked and moderate degree of hypetensive effect was observed within 8weeks og medication in 45% of all cases. 2) Before and after 1, 2, 4, 6, and 8weeks of medication, the overall average heart rates were 79.7+/-10.1, 78.3+/-9.1, 79.4+/-7.4, 80.8+/-8.3, 79.2+/-8.9 and 80.1+/-8.3 beats/minute. There were no significant change in heart rates before and after medication. 3) There were no significant changes in values of complete blood counts, GOT, GDT, blood urea nitrogen, serum creatinine and total cholesterol before and after medication. On the basis of these results, we observed that Bunazosin was effective hypertensive drug.
Blood Cell Count
;
Blood Pressure
;
Blood Urea Nitrogen
;
Cholesterol
;
Creatinine
;
Heart Rate
;
Humans
;
Hypertension
4.The Epidemiologic Characteristics of Measles for Two Years in a Metropolitan City: Based on the reported measles cases since 2000.
Hyun Kyun KI ; Young Hwa JUNG ; Jae Keun CHUNG ; So Yeon RYU ; Ki Soon KIM
Korean Journal of Epidemiology 2002;24(1):63-75
PURPOSE: There has been an epidemic of measles in Korea since 2000. Therefore, we analyze the epidemiologic haracteristics of measles in Gwangju Metropolitan City. METHODS: We reviewed the epidemiologic investigation records and laboratory data of the measles patients reported in Gwangju Metropolitan City from January 1st 2000. RESULTS: 1) Demographic characteristics: Totally, 3,392 cases were surveyed and 3,300 cases were enrolled (3,300/3,392, 97.3%). Fifty-four percents of the patients were male (1,771/3,300) and forty-six percents of the patients were female (1,529/3,300). Average age of the patients was 8.20 years (8.20 5.56 years). Forty-seven percents of the patients were reported in the interval from November 2000 to December 2000 (1,582/3,298, 47.9%). 2) Clinical manifestations of the patients: Common symptoms of measles patients were fever (3,300/3,300, 100.0%), skin rash (3,068/3,300, 93.0%), cough (2,889/3,300, 87.5%), rhinorrhea (1,883/3,300, 57.1%), headache (1,445/3,300, 43.8%), conjunctival injection (1,182/3,300, 35.8%), and oral thrush (832/3,300, 25.2%). Among the patients, 250 patients had complications (250/3,300, 7.6%) and most of them were respiratory complications (220/250, 88.0%). 3) Vaccination: Eighty-six percent of the enrolled patients answered the question about vaccination (2,854/3,300, 86.4%); 808 patients were not taken a shot (808/2854, 28.3%), 1,762 patients received one dose (1,762/2,854, 61.7%), and 284 patients received additional dose (284/2,854, 9.9%). 4) Laboratory data: Laboratory confirmed cases were 780 patients (780/3,300, 23.6%); 603 cases were confirmed serologically, 185 cases were positive in PCR, and virus was isolated in 6 cases. Genetic sequencing of the isolated viruses was clade H1 and closely related to that of China. CONCLUSION: Therefore, adequate surveillance and maintenance of high coverage rate of the vaccination would be the crucial factors to eradicate measles
Candidiasis, Oral
;
China
;
Cough
;
Exanthema
;
Female
;
Fever
;
Gwangju
;
Headache
;
Humans
;
Korea
;
Male
;
Measles*
;
Polymerase Chain Reaction
;
Vaccination
5.Pseudohyponatremia After Intravenous Immunoglobulin Therapy in a Patient With Guillain-Barre Syndrome.
Jinseok PARK ; Hyung Kyun IM ; Seok Ho LEE ; Won Ki PAEK ; Hyun Young KIM ; Seung Hyun KIM
Journal of the Korean Neurological Association 2010;28(4):332-334
No abstract available.
Guillain-Barre Syndrome
;
Humans
;
Immunization, Passive
;
Immunoglobulins
6.A case of malignant fibrous histiocytoma with invasion into great vessels and heart which was confused with benign myxoma.
Sung Kyun SIN ; Kyung Jin LEE ; Ki Ryong SONG ; Sung Yeon CHO ; Woo Jin HYUN ; Soon Chang PARK ; Jung Kyun LEE
Korean Journal of Medicine 2004;67(5):535-539
Cardiac tumors are rare. Benign myxoma is the most common among them. Malignant fibrous histiocytoma is a tumor originating from primitive mesenchymal cell and found most commonly in four extremities. Since this disease was first described by Shah in 1978, there have been a lot of case reports of cardiac malignant fibrous histiocytoma. If originating in the heart, it is usually found in left atrium which is unusual for malignant cardiac tumor. Since the advent of the echocardiography as a diagnostic tool in the cardiac disease, a lot more cases of cardiac tumor have been reported. Here, we report a case of cardiac malignant fibrous histiocytoma in a 67 year old man presenting with dyspnea who, at first sight, seemed to have benign myxoma but turned out to have malignant fibrous histiocytoma. However, strictly speaking,the case we found is a cardiac invasion of the retroperitoneal malignant fibrous histiocytoma.
Aged
;
Dyspnea
;
Echocardiography
;
Extremities
;
Heart Atria
;
Heart Diseases
;
Heart Neoplasms
;
Heart*
;
Histiocytoma, Benign Fibrous
;
Histiocytoma, Malignant Fibrous*
;
Humans
;
Myxoma*
7.Clinical Characteristics and Therapeutic Efficacy of Low Dose Cytarabine in High Risk Myelodysplastic Syndrome.
Dong Woo HYUN ; Dong Hwan KIM ; Jin Tae JEONG ; Young Hak LEE ; Jeong Kyun KIM ; Sun Gun BAE ; Sang Kyun SOHN ; Kyu Bo LEE ; Dong Kun SHIN ; Ki Seok HWANG
Korean Journal of Hematology 1998;33(1):94-103
BACKGROUND: High risk myelodysplastic syndrome has various clinical courses and refractoriness to various therapies. It is important to analyze clinical characteristics and therapeutic responses in high risk myelodysplastic syndrome. METHODS: Sixty nine cases of primary high risk myelodysplastic syndrome at diagnosis were enrolled in this study at Kyungpook National University Hospital and Taegu Hyosung- Catholic University Hospital from January 1987 to June 1996. We have investigated the clinical characteristics and therapeutic outcomes after low dose cytarabine chemotherapy. RESULTS: 1) The median age of the patients was 48 years. Male to female ratio was 2.1:1. The each numbers of RAEB, CMML and RAEB-T patients were 38, 11 and 20, respectively. 2) The most common chief complaint was dyspnea on exertion. General weakness, fever and dizziness were also observed. The most common physical finding was pallor. 3) The peripheral blood findings showed anemia in 65 cases (94.2%), thrombocytopenia in 64 cases (92.8%), leukopenia in 32 cases (46.4%) and pancytopenia in 26 cases (37.7%). 4) Twenty two cases transformed to acute myelogenous leukemia during the follow-up periods. Chemotherapy was done in 18 cases among 22 cases of transformed acute myelogenous leukemia. Complete remission was achieved in 3 cases (16.7%), partial remission in 4 cases (22.2%) and no response in 11 cases (61.1%). 5) Forty seven cases were treated by low dose cytarabine chemotherapy. Complete response was achieved in 11 cases (23.4%), partial response in 13 cases (27.7%) and no response in 23 cases (48.9%). Median duration of complete response was 12 weeks. 6) We made score system, which based on Sanz score and Gattermann score, according to age, hemoglobin, platelet and bone marrow blast. Overall survival was higher in group A (score< or = 5) than group B (score> or = 6). Complete response of low dose cytarabine chemotherapy was higher in group A than group B but overall survival according to low dose cytarabine chemotherapy was not different in group A and group B. CONCLUSION: Low dose cytarabine chemotherapy was not effective in survival benefit. Score system according to prognostic factors was important to predict therapeutic response and prognosis. In the future, more intensive therapeutic plan and analysis of prognostic factors should be considered.
Anemia
;
Anemia, Refractory, with Excess of Blasts
;
Blood Platelets
;
Bone Marrow
;
Cytarabine*
;
Daegu
;
Diagnosis
;
Dizziness
;
Drug Therapy
;
Dyspnea
;
Female
;
Fever
;
Follow-Up Studies
;
Gyeongsangbuk-do
;
Humans
;
Leukemia, Myeloid, Acute
;
Leukopenia
;
Male
;
Myelodysplastic Syndromes*
;
Pallor
;
Pancytopenia
;
Prognosis
;
Thrombocytopenia
8.Protracted Venous Infusion of 5-Fluorouracil as a Chemotherapy in Colorectal Cancer.
Hyun Sik JEONG ; Won Seog KIM ; Sook In JUNG ; Jong Tae LEE ; Ki Hyun KIM ; Sung Soo YOON ; Won Ki KANG ; Hong Ghi LEE ; Ken Chil PARK ; Poong Lyul RHEE ; Hae Jun KIM ; Ho Kyun CHUN ; Chan Hyung PARK
Journal of the Korean Cancer Association 1999;31(1):120-125
PURPOSE: The administration of 5-fluorouracil (5-FU) by protracted intravenous infusion is an alternative to the bolus administration of 5-FU in patients with advanced colorectal cancers. This study was performed to evaluate the response rate and toxicities of protracted infusion of 5-FU in patients with advanced or recurrent colorectal cancers who had been treated with 5-FU by bolus or shortterm continuous administration. MATERIALS AND METHODS: Between March 1995 and June 1997, twenty-eight patients with advanced colorectal cancer previously exposed to 5-FU based chemotherapy were enrolled in this triaL Patients received 5-FU (250 mg/m(2)/day days 1-28) or 5-FU plus leucovorin (5-FU; 200 mg/m/day days 1-28, leucovorin; 20 mg/m IV days 1, 8, 15, 21) by ambulatory infusion pump. Treatment course was repeated every 42 days until disease progression. RESULT: Twenty-eight patients entered. All 28 patients were assessable for response and toxicity. Five (19%) patients achieved a partial response, with the median response duration of 15 weeks (range; 7-22 weeks), and median survival time of entire patients was 54 weeks (range 7-151+ weeks). Gastrointestinal toxicity, specifically stomatitis was a major toxicity (grade 2, 12%; grade 3, 4%), but hand-foot syndrome was less frequent (5%) compared with other trials with protracted infusion of 5-FU reported in the literature. Hematologic toxicity was generally of low grade. CONCLUSION: Prolonged intravenous infusion of 5-FU can produce a response rate of 19% with low toxicity among patients refractory to bolus or short-term infusion of S-FU.
Colorectal Neoplasms*
;
Disease Progression
;
Drug Therapy*
;
Fluorouracil*
;
Hand-Foot Syndrome
;
Humans
;
Infusion Pumps
;
Infusions, Intravenous
;
Leucovorin
;
Stomatitis
9.Persistent Pemphigus Vulgaris Showing Features of Tufted Hair Folliculitis.
Dong Kyun KO ; In Soo CHAE ; Ki Hun CHUNG ; Joon Soo PARK ; Hyun CHUNG
Annals of Dermatology 2011;23(4):523-525
Pemphigus vulgaris is an autoimmune blistering disease that commonly involves the scalp. Lesions of pemphigus vulgaris that persist on the scalp for a long period may be accompanied by tufted hair folliculitis. Only two previous accounts of tufted hair folliculitis developing in a lesion of pemphigus vulgaris have been reported. We report a 51-year-old-man with erosions and clusters of hair on the scalp. The scalp lesion had persisted for about 20 years. A histopathological examination of the skin lesion on the scalp revealed separation of the epidermis and clusters of several adjacent hair follicles. The patient was diagnosed with persistent pemphigus vulgaris of the scalp showing features of tufted hair folliculitis.
Blister
;
Epidermis
;
Folliculitis
;
Hair
;
Hair Follicle
;
Humans
;
Pemphigus
;
Scalp
;
Skin
10.Allergic Contact Dermatitis due to a Topical Antipruritic Containing Dibucaine.
Dong Kyun KO ; In Soo CHAE ; Ki Hun CHUNG ; Joon Soo PARK ; Hyun CHUNG
Korean Journal of Dermatology 2011;49(6):546-549
Dibucaine hydrochloride is an amide-type local anesthetic and it is well known to be a contact allergen. Although there are some reports of allergic contact dermatitis due to over-the-counter medications containing dibucaine in the foreign literature, there is only one report of it in the Korean literature. We report here on a case of allergic contact dermatitis due to an over-the-counter drug containing dibucaine in a 41-year-old-woman. The patch test with the preparation that she had used and the TRUE(R) test revealed positive reactions to the dibucaine mix and Moscool(R).
Dermatitis, Allergic Contact
;
Dibucaine
;
Patch Tests