1.Clinical distribution and drug resistance characteristics of carbapenem-resistant Klebsiella pneumoniae.
Cui Fang SHEN ; Xiao Xiang ZHANG ; Chao Chi BAO
Chinese Journal of Preventive Medicine 2023;57(3):416-421
To explore the clinical distribution and drug resistance characteristics of carbapenem-resistant Klebsiella pneumoniae (CRKP), in order to provide reference for the prevention and treatment of CRKP infection. Retrospective analysis was performed on 510 clinical isolates of CRKP from January 2017 to December 2021, and strain identification and drug sensitivity tests were conducted by MALDI-TOF mass spectrometer and VITEK-2 Compact microbial drug sensitivity analyzer. The carbapenemase phenotype of CRKP strain was detected by carbapenemase inhibitor enhancement test. The CRKP strain was further categorized by immunochromogenic method and polymerase chain reaction (PCR) was used for gene detection. The results showed that 302 strains (59.2%) were derived from sputum, 127 strains (24.9%) from urine and 47 strains (9.2%) from blood. 231 (45.3%) were mainly distributed in intensive care, followed by 108 (21.2%) in respiratory medicine and 79 (15.5%) in neurosurgery. Drug susceptibility test result shows that the resistant rate of tigecycline increased from 1.0% in 2017 to 10.1% in 2021, the difference was statistically significant (χ2=14.444,P<0.05). The results of carbapenemase inhibitor enhancement test showed that 461 carbapenemase strains (90.4%) of 510 CRKP strains, including 450 serinase strains (88.2%), 9 metalloenzyme strains (1.8%), and 2 strains (0.4%) produced both serine and metalloenzyme. 49 strains (9.6%) did not produce enzymes. Further typing by immunochromogenic assay showed that 461 CRKP strains were KPC 450 (97.6%) and IMP 2 (0.4%). 7 NDM (1.5%); 2 strains of KPC+NDM (0.4%); PCR results were as follows: 450 strains of blaKPC (97.6%), 2 strains of blaIMP (0.4%), 7 strains of blaNDM (1.5%), and 2 strains of blaKPC+NDM (0.4%). In conclusion, CRKP strains mainly originated from sputum specimens and distributed in intensive care department, and the drug resistance characteristics were mainly KPC type in carbapenemase production. Clinical microbiology laboratory should strengthen the monitoring of CRKP strains, so as to provide reference for preventing CRKP infection and reducing the production of bacterial drug resistance.
Anti-Bacterial Agents/pharmacology*
;
Carbapenems/pharmacology*
;
Klebsiella pneumoniae/genetics*
;
Hospital Distribution Systems
;
Retrospective Studies
;
Microbial Sensitivity Tests
;
beta-Lactamases/genetics*
;
Bacterial Proteins/genetics*
;
Drug Resistance, Bacterial/genetics*
2.Identification of Mycobacterium leprae and Mycobacterium lepromatosis in Formalin-Fixed and Paraffin-Embedded Skin Samples from Mexico.
Edoardo TORRES-GUERRERO ; Elisa Crystal SÁNCHEZ-MORENO ; Carlos Enrique ATOCHE-DIÉGUEZ ; Erika Margarita CARRILLO-CASAS ; Roberto ARENAS ; Juan XICOHTENCATL-CORTES ; Rigoberto HERNÁNDEZ-CASTRO
Annals of Dermatology 2018;30(5):562-565
BACKGROUND: The causative agents of leprosy are the well-known Mycobacterium leprae and the newly discovered Mycobacterium lepromatosis. This agent was found in 2008, and it was found to be the cause of diffuse lepromatous leprosy in two Mexican patients. OBJECTIVE: The objective of this work was to determine if M. leprae and M. lepromatosis were present in formalin-fixed and paraffin-embedded skin samples from cases from different regions in Mexico. METHODS: A total of 41 skin samples were obtained from 11 states of Mexico. All patients' samples were diagnosed by clinical and histopathological analyses. Total DNA was isolated using a Qiagen-DNeasy blood and tissue kit and molecular identification was achieved by two semi-nested polymerase chain reactions. RESULTS: The 41 patient included 33 samples from men and 8 samples from women; 29 samples were polymerase chain reaction (PCR)-positive to Mycobacterium and 12 samples were PCR-negative. From those 29 samples, 13 were PCR-positive to M. leprae, 8 to M. lepromatosis and 8 were positive to both species. The histopathological diagnosis included; Nodular lepromatous leprosy (NLL); Diffuse lepromatous leprosy (DLL); and Borderline leprosy (BL). The 29 PCR-positive samples were classified as follow: 14 NLL, 4 DLL, and 11 BL. In the 12 samples negative to Mycobacterium, 7 showed the NLL, 2 DLL and 3 BL. CONCLUSION: These findings add evidence to the M. leprae and M. lepromatous distribution, clinical forms and participation of dual infections in Mexico.
Diagnosis
;
DNA
;
Female
;
Hospital Distribution Systems
;
Humans
;
Leprosy
;
Leprosy, Borderline
;
Leprosy, Lepromatous
;
Male
;
Mexico*
;
Mycobacterium leprae*
;
Mycobacterium*
;
Polymerase Chain Reaction
;
Skin*
3.Geographic Analysis of Neurosurgery Workforce in Korea
Hye Ran PARK ; Sukh Que PARK ; Jae Hyun KIM ; Jae Chan HWANG ; Gwang Soo LEE ; Jae Chil CHANG
Journal of Korean Neurosurgical Society 2018;61(1):105-113
OBJECTIVE: In respect of the health and safety of the public, universal access to health care is an issue of the greatest importance. The geographic distribution of doctors is one of the important factors contributing to access to health care. The aim of this study is to assess the imbalances in the geographic distribution of neurosurgeons across Korea.METHODS: Population data was obtained from the National Statistical Office. We classified geographic groups into 7 metropolitan cities, 78 non-metropolitan cities, and 77 rural areas. The number of doctors and neurosurgeons per 100000 populations in each county unit was calculated using the total number of doctors and neurosurgeons at the country level from 2009 to 2015. The density levels of neurosurgeon and doctor were calculated and depicted in maps.RESULTS: Between 2009 and 2015, the number of neurosurgeons increased from 2002 to 2557, and the ratio of neurosurgeons per 100000 populations increased from 4.02 to 4.96. The number of neurosurgeons per 100000 populations was highest in metropolitan cities and lowest in rural areas from 2009 to 2015. A comparison of the geographic distribution of neurosurgeons in 2009 and 2015 showed an increase in the regional gap. The neurosurgeon density was affected by country unit characteristics (p=0.000).CONCLUSION: Distribution of neurosurgeons throughout Korea is uneven. Neurosurgeons are being increasingly concentrated in a limited number of metropolitan cities. This phenomenon will need to be accounted when planning for a supply of neurosurgeons, allocation of resources and manpower, and the provision of regional neurosurgical services.
Geographic Mapping
;
Health Manpower
;
Health Services Accessibility
;
Hospital Distribution Systems
;
Korea
;
Neurosurgeons
;
Neurosurgery
;
Resource Allocation
4.Treatment of Tongue Cancer in Patient with Fanconi's Anemia.
Seung Hun LEE ; Hee Sung PARK ; Jae Won CHANG ; Bon Seok KOO
Korean Journal of Otolaryngology - Head and Neck Surgery 2017;60(9):467-470
Fanconi's anemia is a rare autosomal recessive genetic disorder characterized by congenital abnormalities and anaplastic anemia. Patients with this disorder has predisposition for leukemia, specifically acute myeloid leukemia. Risk for head and neck solid tumors are also increased. Head and neck cancers in patients with Fanconi's anemia are significantly different from those in patients without Fanconi's anemia in frequency, distribution, clinical course, and treatment. Therefore, we report a case of 23-year-old male with Fanconi's anemia, who presented with an oral tongue cancer treated with radical excision, bilateral neck dissection and careful postoperative radiation therapy.
Anemia
;
Congenital Abnormalities
;
Fanconi Anemia*
;
Head
;
Hospital Distribution Systems
;
Humans
;
Leukemia
;
Leukemia, Myeloid, Acute
;
Male
;
Neck
;
Neck Dissection
;
Tongue Neoplasms*
;
Tongue*
;
Young Adult
5.Epidemiology of Fungal Infections in Patients Admitted via Emergency Department in Korea (2011~2013).
Youngwoo SEO ; Joonsoo PARK ; Taechang JANG
Korean Journal of Medical Mycology 2016;21(4):111-121
BACKGROUND: Fungal infections are frequent encountered conditions presented in various clinical forms. The prevalence of fungal infection is gradually growing because of the increase in aged population and immune-compromised host which is susceptible factor of fungal infection. Broad array of studies of fungal infection have been published in Korea. However, epidemiologic study of fungal infection in admitted patients via emergency department has not been conducted. OBJECTIVE: The purpose of this study is to generate background data for emergency department visits in relation to fungal infection for developing a subsequent management and control system. METHODS: The data was collected from National Emergency Department Information System (NEDIS) in Korea from 2011 to 2013. Data analysis was done to evaluate the age distribution of admission, regional variance and sex of the patients with fungal infection. RESULTS: The patients were divided into five groups according to their primary diagnosis which were skin fungal infection, subcutaneous mycoses, opportunistic mycoses, systemic mycoses and other mycoses. The annual admission ratio of general fungal infections increased from 2.15 persons per 100,000 in 2011 to 2.46 persons per 100,000 in 2013. The highest admission ratio was seen in opportunistic mycoses group followed by cutaneous fungal infections, other mycoses, subcutaneous mycoses and systemic mycoses groups. CONCLUSION: This study provides a basic set of data pertaining to fungal infections in emergency departments. Therefore, more systemically approached researches are required to implement sounder management and control systems of fungal infections presented in emergency departments.
Age Distribution
;
Diagnosis
;
Emergencies*
;
Emergency Service, Hospital*
;
Epidemiologic Studies
;
Epidemiology*
;
Humans
;
Information Systems
;
Korea*
;
Mycoses
;
Prevalence
;
Skin
;
Statistics as Topic
6.Symptomatic Steno-Occlusion in Patients with Acute Cerebral Infarction: Prevalence, Distribution, and Functional Outcome.
Jihoon KANG ; Tai Hwan PARK ; Kyung Bok LEE ; Jong Moo PARK ; Youngchai KO ; Soo Joo LEE ; Keun Sik HONG ; Yong Jin CHO ; Ji Sung LEE ; Juneyoung LEE ; Byung Chul LEE ; Kyung Ho YU ; Dae Hyun KIM ; Jae Kwan CHA ; Jun LEE ; Myung Suk JANG ; Moon Ku HAN ; Hee Joon BAE
Journal of Stroke 2014;16(1):36-43
BACKGROUND AND PURPOSE: Symptomatic steno-occlusion (SYSO) in acute ischemic stroke has a significant impact on treatment options and prognosis. However, the prevalence, distribution, clinical characteristics, and outcome of SYSO are not well known. METHODS: We retrospectively identified 3,451 patients hospitalized because of ischemic stroke within 24 hours of symptom onset at 9 stroke centers in South Korea. Patients who did not undergo magnetic resonance imaging were excluded. SYSO was defined as stenosis or occlusion of cerebral arteries with relevant ischemic lesions in the corresponding arterial territory. The number, location, and severity of SYSOs and their effects on functional outcome were analyzed. RESULTS: In total, 1,929 of 3,057 subjects (63.1%) had SYSO. The most frequently affected vessels were the middle cerebral artery (34.6%), extracranial internal carotid artery (14%), vertebral artery (12.4%), and basilar artery (8.7%). SYSO predicted poor outcome on the modified Rankin Scale 3-6 (odds ratio, 1.77; 95% confidence interval, 1.46-2.15) with adjustments. Involvement of 2 or more vessels was observed in 30.6% of patients with SYSO and independently increased the risk of poor outcome (odds ratio, 2.76; 95% confidence interval, 2.12-3.59). The severity of SYSO was associated with outcome and showed a significant dose-response trend (P<0.001). The effect of SYSO on outcome did not significantly differ by individual arterial location (P for contrast=0.21). CONCLUSIONS: Approximately 60% of patients with acute ischemic stroke had SYSO, and the severity and number were inversely correlated with outcome. The results suggest that SYSO could predict stroke outcome.
Basilar Artery
;
Carotid Artery, Internal
;
Cerebral Arteries
;
Cerebral Infarction*
;
Cerebrovascular Disorders
;
Constriction, Pathologic
;
Hospital Distribution Systems
;
Humans
;
Magnetic Resonance Imaging
;
Middle Cerebral Artery
;
Prevalence*
;
Prognosis
;
Republic of Korea
;
Retrospective Studies
;
Stroke
;
Vertebral Artery
7.Quality improvement and performance evaluation of Monitoring and Tracking Medical Materials Lot Number.
Lei ZHANG ; Jianguo QIAN ; Ling HU ; Ying CHEN
Chinese Journal of Medical Instrumentation 2013;37(5):386-388
With various increasing health sector's demand of medical materials, monitoring and tracking medical materials lot number has become the most important thing of hospital's medical materials management. This paper discussed and researched deeply the actual operation problem through data analysis and charts comparison, put forward realizing barcodes wireless scanning, and synchronizing information in local area network, so to improve the barcode input accuracy. Achieve the ultimate goal of completing medical materials lot number traceability.
Hospital Distribution Systems
;
organization & administration
;
Materials Management, Hospital
;
Quality Control
8.Research of regional medical consumables reagent logistics system in the modern hospital.
Jingjiong WU ; Yanwen ZHANG ; Xiaochen LUO ; Qing ZHANG ; Jianxin ZHU
Chinese Journal of Medical Instrumentation 2013;37(5):382-385
OBJECTIVETo explore the modern hospital and regional medical consumable reagents logistics system management.
METHODSThe characteristics of regional logistics, through cooperation between medical institutions within the region, and organize a wide range of special logistics activities, to make reasonable of the regional medical consumable reagents logistics. To set the regional management system, dynamic management systems, supply chain information management system, after-sales service system and assessment system. By the research of existing medical market and medical resources, to establish the regional medical supplies reagents directory and the initial data. The emphasis is centralized dispatch of medical supplies reagents, to introduce qualified logistics company for dispatching, to improve the modern hospital management efficiency, to costs down.
RESULTSRegional medical center and regional community health service centers constitute a regional logistics network, the introduction of medical consumable reagents logistics services, fully embodies integrity level, relevance, purpose, environmental adaptability of characteristics by the medical consumable reagents regional logistics distribution.
CONCLUSIONSModern logistics distribution systems can increase the area of medical consumables reagent management efficiency and reduce costs.
Hospital Distribution Systems ; organization & administration ; Indicators and Reagents ; supply & distribution ; Quality Control
9.Application of supply chain integration management of medical consumables.
Chinese Journal of Medical Instrumentation 2013;37(4):304-307
This paper introduces the background, the content, the information management system of material supply chain integration management and the consumables management process. The system helps to expand the selection of hospital supplies varieties, to reduce consumables management costs, to improve the efficiency of supplies, to ensure supplies safety, reliability and traceability.
Disposable Equipment
;
supply & distribution
;
Management Information Systems
;
Materials Management, Hospital
;
organization & administration
10.The effective distribution system for the concentration of patients to extra-large hospitals.
Journal of the Korean Surgical Society 2011;80(6):373-383
PURPOSE: In Korean society, extra-large hospitals are congested with the majority of patients. Because of the congestions, the urgent patients need to wait anywhere from as short as a month to around three months. These concentrations of the patients on the extra-large hospitals causes not only the economic problem in terms of loss of opportunity cost and resources of other medium and large hospitals but also the fear and the consequential stress of the patients and the families of the patients who are waiting for the surgeries. The phenomenon of the concentrations derived due to the insufficient information to the medical consumers. If the information on medical treatment services such as surgery schedule is provided before the selection of hospital, we expect that the selection of hospital for the patients and their family will differ, resulting in redistribution of concentration phenomenon. In this paper, we propose and verify the effective distribution system for the concentration on the extra-large hospitals. METHODS: Web simulation survey was conducted. A total 100 respondents were divided into 4 groups of 25 respondents and the different information was provided to each group. RESULTS: Through multiple comparisons among groups, only group which was provided with both information about 'the difference of surgical results' and 'the waiting time for surgery', had difference in significance. CONCLUSION: By providing two sets of information to patients, reckless selection of extra-large hospitals can be spread to more appropriate hospitals and therefore achieve effective distribution of the population concentration on extra-large hospital.
Appointments and Schedules
;
Decision Theory
;
Estrogens, Conjugated (USP)
;
Hospital Distribution Systems
;
Humans
;
Patient Self-Determination Act
;
Surveys and Questionnaires

Result Analysis
Print
Save
E-mail