PURPOSE: Improvement in the prognosis of multiple primary malignant neoplasm may be attained by early discovery and awareness of the secondary tumor. This study aimed to determine the characteristics of multiple primary neoplasms involving the urinary tract in Korea. MATERIALS AND METHODS: Of 1,406 patients treated for urologic cancers, 76 patients with multiple primary neoplasms also involving other than the genitourinary system were analyzed. We studied the occurrence rate and distribution of tumors. RESULTS: Of the 76 cases, 33 cases were synchronous and 43 cases were metachronous. Average time interval between the diagnosis of first and second tumor was 48 months. Tumors of the gastrointestinal tract, particularly stomach cancer, among non-urologic cancers and tumors of the bladder among urologic cancers were predominantly involved followed by renal and prostate tumors. However, renal tumor was the most common urologic tumor in synchronous cancers. Eighty-one percent of the metachronous urinary tumors occurred as second tumors. CONCLUSIONS: Our present findings show that the occurrence of multiple primary neoplasms involving the urinary tract is not rare and that the incidence of organ involvement is different from the western countries.
Diagnosis ; Gastrointestinal Tract ; Humans ; Incidence ; Korea ; Neoplasms, Multiple Primary ; Prognosis ; Prostate ; Stomach Neoplasms ; Urinary Bladder ; Urinary Tract* ; Urogenital System ; Urologic Neoplasms

BACKGROUND: Klebsiella pneumoniae is an opportunistic pathogen which causes a spectrum of extra- intestinal infections. Since early 1980s, many outbreaks of extended-spectrum beta-lactamase (ESBL) producing K. pneumoniae have been reported. Using quinolone as an alternative therapeutic antibiotics also induced increased resistance to quinolones. Therefore, we evaluatedted the clinical and microbiological features of pneumonia caused by quinolone-resistant K. pneumoniae (QRKP). METHODS: From March of 1998 to April of 2000, 345 cases of K. pneumoniae pneumonia had been admitted to Korea University Guro Hospital. We retrospectively reviewed medical records of 75 cases. Thirty patients with pneumonia due to QRKP (case patients) were compared to 45 patients with pneumonia due to quinolone-susceptible K. pneumoniae (QSKP: control patients). We also performed antimicrobial susceptibility test (disc diffusion method and agar dilution method) and RAPD (random amplified polymorphic DNA) analysis to differentiate the isolates in resistant strains. RESULTS: Of 345 episodes of pneumonia, 30 (8.7 %) were caused by QRKP. Multivariate analysis re-vealed that prior antibiotics use was an independent risk factor for QRKP pneumonia. Among prior antibiotics, quinolone and the third generation cephalosporin were independently related to quinolone resistance. Although mortality rate was not high, QRKP pneumonia was associated with a significantly longer treatment duration and poor treatment response (P=0.009 and 0.007 respectively). According to the antimicrobial susceptibility test, quinolone resistance was significantly associated with the multi-drug resistance. RAPD analysis showed that 28 quinolone resistant strains belonged to only 4 genotypes, suggesting that patient- to-patient transmission of a few strains within the hospital occurred. CONCLUSION: QRKP pneumonia had a significant impact on clinical outcome and quinolone resistance was associated with multiple resistance to other antibiotics. It should be emphasized that judicious use of antibiotics as well as barrier precautions is required to reduce future outbreak and spread of QRKP.
Agar ; Anti-Bacterial Agents ; beta-Lactamases ; Diffusion ; Disease Outbreaks ; Drug Resistance, Multiple ; Genotype ; Humans ; Klebsiella pneumoniae* ; Klebsiella* ; Korea ; Medical Records ; Mortality ; Multivariate Analysis ; Pneumonia* ; Quinolones ; Retrospective Studies ; Risk Factors

BACKGROUND: Measles is an acute highly contagious infection caused by measles virus. Since the introduction of measles vaccines in 1963, measles has been dramatically decreased in Korea. However, measles outbreaks have occurred periodically every 4 to 6 years during the 1990s. During 2000, measles outbreak of large scale occurred throughout the country and the total of 32,088 cases were reported. The majority of affected population was infants and school-aged children, but measles was reported also among adolescent and adult population. There was no report about the epidemiology of adult measles cases during the last decade. In this study, we retrospectively analyzed the epidemiologic and clinical features of adult measles patients in Korea. METHODS: From July of 2000 to January of 2001, 50 adult cases of measles had been admitted to Korea University Hospital. Medical records of these 50 patients, who were clinically diagnosed as measles, were reviewed. Demographic data, clinical features, history of measles vaccination and laboratory findings were evaluated. RESULTS: The median age of patients was 23 years : 28 (56%) were male. Most cases (49/50, 98%) occurred between November of 2000 to January of 2001 and 8 (16%) patients were associated with outbreaks. The occupation of patients was diverse but, students (28%) and office workers (20%) were the most common. 44 (88%) of 50 patients had no underlying diseases. Adult measles patients demonstrated similar clinical symptoms, which were shown in children with measles. In laboratory findings, mean WBC count was 4,933/micro L and 18 (36%) patients had thrombocytopenia. 21 (42 %) patients had complication of measles, and hepatitis was the most common episodes among them. Measles vaccination history revealed that 5 (10%) had two-dose and 7 (14%) had one-dose measled vaccine. In 35 patients, measles IgM antibody test was done. It appears that IgM positive rate among one-dose measle vaccination group, two-dose measle vaccination group, and group with unknown vaccination history were 86% (6/ 7), 40% (2/5), and 78% (18/23), respectively. Most (94%) of patients were hospitalized and more than two-third of patients were isolated. All the patients were recovered without sequelae. CONCLUSION: In 2000 measles outbreak, adult measles had the typical clinical features similar to those in the children and the severe complication was rare. Adult measles patients demonstrated low measles vaccination rate and occurred mainly among the students and office workers.
Adolescent ; Adult* ; Child ; Disease Outbreaks ; Epidemiology ; Hepatitis ; Humans ; Immunoglobulin M ; Infant ; Korea ; Male ; Measles virus ; Measles* ; Medical Records ; Occupations ; Retrospective Studies ; Thrombocytopenia ; Vaccination ; Vaccines

BACKGROUND AND OBJECTIVES: Aortic stiffness is believed to be an important risk factor of coronary artery atherosclerosis (CAA), as it directly affects coronary perfusion. The following aspects of the invasively measured aortic pulse wave velocity (PWV) were assessed in relation to CAA: The effect of cardiovascular risk factors on PWV, the effect of PWV on the severity of CAA and on the development of the restenosis after drug-eluting stent (DES) implantation. SUBJECTS AND METHODS: 371 subjects who had undergone coronary angiography were enrolled, with all undergoing an invasive aortic PWV measurement also. 112 patients, who had undergone a DES implantation, were prospectively investigated for the effect of PWV in relation to the subsequent risk of major adverse cardiac events (MACE). RESULTS: Among the conventional cardiovascular risk factors, an age >60 (10.79+/-4.92 vs. 8.35+/-4.02, p=0.0006), diabetes (10.97+/-4.66 vs. 9.26+/-4.70 m/sec, p=0.0118) and dyslipidemia (10.38+/-4.97 vs. 9.47+/-4.55m/sec, p=0.0421) were significantly associated with an increased PWV, but sex, smoking and hypertension were not associated with an increased PWV. The PWV was shown to be significantly associated with the severity of CAD. The odds ratio (OR) of 1m/sec increment in the PWV for an increased vessel score was 1.08 (95% confidence interval (CI): 1.03-1.13, p=0.0017). There were no differences in the incidence of MACE and the changes in the angiographic parameters between the high (>10 m/sec) and low PWV groups. CONCLUSION: The invasively measured aortic PWV was affected by age (>60), diabetes and dyslipidemia, and also showed a strong association with the severity of CAD. The aortic PWV was not a significant risk factor for restenosis following a DES implantation.
Atherosclerosis ; Coronary Angiography ; Coronary Artery Disease* ; Coronary Restenosis ; Coronary Vessels* ; Drug-Eluting Stents ; Dyslipidemias ; Humans ; Hypertension ; Incidence ; Odds Ratio ; Perfusion ; Prospective Studies ; Pulse Wave Analysis ; Risk Factors ; Smoke ; Smoking ; Vascular Stiffness*

BACKGROUND: Cancer therapy-related infections due to neutropenia is a well known problem in cancer treatment. Leukemia increases the risk furthermore because of its nature of bone marrow involvement. Therefore knowledge of the aspects of infections in neutropenic leukemic patients are important in preventing morbidity and mortality. METHODS: This study was conducted by reviewing clinical records of 69 cases of 49 leukemic patients who had neutropenic fever during 1996~2001. Each case was reviewed and analyzed in terms of clinical status & treatment, laboratory results, origins of fever and pathogens (if origin was infectious), final outcome and prognostic factors. RESULTS: Of 69 cases of 49 leukemic patients with neutropenic fever, mortalilty was 29%. Microbiologically defined infection (MDI) was 45% and clinically defined infection (CDI) was 30.4%, which meant a increase in MDIs compared with the previous study. Major focuses of fever were lung, blood and catheter-related, which were similar to those of 1988~1995. The major pathogens were gram negative bacilli (43.2%), followed by gram positive cocci (29.7%), but the proportion of gram positive pathogens had increased. Age, usage of selective gut decontamination and colony-stimulating factors (CSFs), and the presence of bone marrow recovery were related to prognosis by univariate analysis. Multivariate logistic regression analysis revealed that the bone marrow recovery was the only significantly related to patient's outcome, which was the same as the previous study (P<0.001). CONCLUSION: Proportions of pathogens in febrile neutropenic patients were similar with the previous study, but gram positive infections are increasing recently. Bone marrow recovery was the only significant prognostic factor in these patients. And, the benefits of selective gut decontamination or CSF usage is still questionable.
Bone Marrow ; Colony-Stimulating Factors ; Decontamination ; Fever* ; Gram-Positive Cocci ; Humans ; Leukemia ; Logistic Models ; Lung ; Mortality ; Neutropenia ; Prognosis

OBJECTIVES: This study developed an information and communication technology (ICT)-based comprehensive health and social-needs assessment (CHSNA) system based on the International Classification of Functioning, Disability, and Health (ICF) with the aim of enhancing person-centered community care for community residents and supporting healthcare professionals and social workers who provide healthcare and social services in the community. METHODS: Items related to a CHSNA tool were developed and mapped with ICF codes. Experts validated the CHSNA system design and process using the Delphi method, and a pilot test of the initial version of the system was conducted. RESULTS: The following three steps of CHSNA were embedded in the system, which had a user-friendly screen and images: basic health assessment, life and activity assessment, and in-depth health assessment. The assessment results for the community residents were presented with visualized health profiles, including images, graphs, and an ICF model. CONCLUSIONS: The developed CHSNA system can be used by healthcare professionals, social workers, and community residents to evaluate the reasoning underlying health and social needs, to facilitate the identification of more appropriate healthcare plans, and to guide community residents to receive the best healthcare services. A CHSNA system can improve the implementation of standardized terminology utilizing the ICF and the accuracy of needs assessments of community residents.
Classification ; Community Health Services ; Decision Support Techniques ; Delivery of Health Care ; Methods ; Needs Assessment ; Patient-Centered Care ; Social Work ; Social Workers

BACKGROUND: Because conventional echocardiographic parameters have several limitations, strain echocardiography has often been introduced in clinical practice. However, there are also obstacles in using it in clinical practice. Therefore, we wanted to find the current status of awareness on using strain echocardiography in Korea. METHODS: We conducted a nationwide survey to evaluate current use and awareness of strain echocardiography from the members of the Korean Society of Echocardiography. RESULTS: We gathered total 321 questionnaires from 25 cardiology centers in Korea. All participants were able to perform or interpret echocardiographic examinations. All participating institutions performed strain echocardiography. Most of our study participants (97%) were aware of speckle tracking echocardiography and 185 (58%) performed it for clinical and research purposes. Two-dimensional strain echocardiography was the most commonly used modality and left ventricle (LV) was the most commonly used cardiac chamber (99%) for clinical purposes. Most of the participants (89%) did not think LV strain can replace LV ejection fraction (LVEF) in their clinical practice. The common reasons for not performing routine use of strain echocardiography was diversity of strain measurements and lack of normal reference value. Many participants had a favorable view of the future of strain echocardiography. CONCLUSION: Most of our study participants were aware of strain echocardiography, and all institutions performed strain echocardiography for clinical and research purposes. However, they did not think the LV strain values could replace LVEF. The diversity of strain measurements and lack of normal reference values were common reasons for not using strain echocardiography in clinical practice.
Cardiology ; Echocardiography* ; Heart Ventricles ; Korea* ; Reference Values