OBJECTIVE: Lethality of the chosen method during a suicide attempt is a strong risk factor for completion of suicide. We examined whether annual changes in the pattern of suicide methods is related to annual changes in suicide rates among older adults in South Korea and Japan. METHODS: We analyzed annual the World Health Organization data on rates and methods of suicide from 2000 to 2011 in South Korea and Japan. RESULTS: For Korean older adults, there was a significant positive correlation between suicide rate and the rate of hanging or the rate of jumping, and a significant negative correlation between suicide rate and the rate of poisoning. Among older adults in Japan, annual changes in the suicide rate and the pattern of suicide methods were less conspicuous, and no correlation was found between them. CONCLUSION: The results of the present study suggest that the increasing use of lethal suicide methods has contributed to the rise in suicide rates among older adults in South Korea. Targeted efforts to reduce the social acceptability and accessibility of lethal suicide methods might lead to lower suicide rate among older adults in South Korea.
Adult* ; Humans ; Japan* ; Korea* ; Methods* ; Poisoning ; Risk Factors ; Suicide* ; World Health Organization

OBJECTIVES: Pathogenic Vibrio species are widely distributed in warm estuarine and coastal environments, and can infect humans through the consumption of raw or mishandled contaminated seafood and seawater. For this reason, the distribution of these bacteria in South Korea was investigated.METHODS: Seawater samples were collected from 145 coastal area points in the aquatic environment in which Vibrio species live. Environmental data (i.e., water temperature, salinity, turbidity, and atmospheric temperature) was collected which may help predict the distribution of the species (data not shown). Seawater samples were filtered, and incubated overnight in alkaline peptone water, at 37°C. Using species-specific polymerase chain reaction methods, screening tests were performed for the hlyA, ctxA, vvhA, and tlh genes. Clones of pathogenic Vibrio species were isolated using 3 selective plating media.RESULTS: In 2017, total seawater isolation rates for Vibrio vulnificus, Vibrio cholerae (non-pathogenic, non-O1, non-O139 serogroups), and Vibrio parahaemolyticus were 15.82%, 13.18%, 65.80%, respectively. However, in 2018 isolation rates for each were 21.81%, 19.40%, and 70.05%, respectively.CONCLUSION: The isolation rates of pathogenic Vibrio species positively correlated with the temperature of seawater and atmosphere, but negatively correlated with salinity and turbidity. From 2017 to 2018, the most frequent seawater-isolated Vibrio species were V. parahaemolyticus (68.10 %), V. vulnificus (16.54%), and non-toxigenic V. cholerae (19.58%). Comprehensive monitoring, prevention, and control efforts are needed to protect the public from pathogenic Vibrio species.
Atmosphere ; Bacteria ; Cholera ; Clone Cells ; Humans ; Korea ; Mass Screening ; Peptones ; Polymerase Chain Reaction ; Salinity ; Seafood ; Seawater ; Vibrio cholerae ; Vibrio parahaemolyticus ; Vibrio vulnificus ; Vibrio ; Water

The incidence, recurrence, and mortality of Clostridium difficile infection are increasing and the standard therapy is oral metronidazole or vancomycin. Since treatment failure with standard therapy is increasing, an alternative therapy is needed. Fecal microbiota transplantation is one effective method in patients with refractory or recurrent C. difficile infection, including pseudomembranous colitis. Here, we report two cases of refractory pseudomembranous colitis treated with fecal microbiota transplantation.
Clostridium difficile ; Enterocolitis, Pseudomembranous ; Humans ; Incidence ; Metagenome ; Metronidazole ; Recurrence ; Transplants ; Treatment Failure ; Vancomycin

An aortoesophageal fistula is one of the very few causes of upper gastrointestinal bleeding but can be fatal if the diagnosis is delayed. This usually occurs secondary to esophageal or aortic surgery. A primary aortoesophageal fistula is rare and less likely to be suspected. Here, we present a case of a primary aortoesophageal fistula that presented as massive upper gastrointestinal bleeding. An 81-year-old man with a history of aortic aneurysm had syncope and bright color hematemesis. The aortoesophageal fistula was not diagnosed early enough and the patient died. Therefore, emergency physicians should consider aortoesophageal fistula as a potential cause when encountering upper gastrointestinal bleeding.
Aged, 80 and over ; Aortic Aneurysm ; Diagnosis ; Emergencies ; Esophageal Fistula ; Fistula* ; Gastrointestinal Hemorrhage ; Hematemesis ; Hemorrhage* ; Humans ; Syncope

Percutaneous needle aspiration biopsy is a relatively simple and safe procedure for the diagnosis of lung and mediastinal lesions. Systemic air embolism during and after percutaneous needle aspiration biopsy of the lung is very rare; however, it is still a complication that can cause fatal outcomes, such as cerebral infarction and myocardial infarction. Here, we report a 72-year-old woman who suffered a change in consciousness immediately after receiving a percutaneous needle aspiration biopsy for the pathologic examination of pulmonary nodules found during a routine health medical examination. She had left side weakness and ST segment elevation on an electrocardiogram. After a high concentration of oxygen, she recovered from neurological symptoms and electrocardiographic abnormalities. The authors report a case of air embolism occurring simultaneously in the brain and coronary arteries after percutaneous needle aspiration biopsy.
Aged ; Biopsy ; Biopsy, Needle* ; Brain ; Cerebral Infarction ; Consciousness ; Coronary Vessels ; Diagnosis ; Electrocardiography ; Embolism ; Embolism, Air* ; Fatal Outcome ; Female ; Humans ; Intracranial Embolism ; Lung* ; Myocardial Infarction ; Needles* ; Oxygen

BACKGROUND: The bioincompatability of the conventional peritoneal dialysis can be partly attributed to the presence of GDPs, which are generated during the heat sterilization. Formation of GDPs can be significantly reduced by the use of multi-chamber bag systems because high concentrated glucose is separated from alkaline lactate. In order to investigate whether multi-chamber bag system can improve the in vivo biocompatibility, we performed a randomized, prospective study comparing the multi-chamber bag system with the conventional PD system, measuring CA125 and PIIINP levels in the effluent dialysates as well as the other clinical and biochemical parameters. METHODS: Forty five patients who were stable on CAPD were enrolled randomly assigned to experiment group (n=27), and control group (n=18). Overnight effluent was collected for measurement of CA125 and PIIINP and the other clinical, biochemical parameters were compared including the number of peritonitis, the ultrafiltration volume. RESULTS: In patients treated with the multiple chamber bag system, there were significantly higher levels of CA125 and PIIINP from 1 month. No clinical and biochemical parameters influenced on their levels. The incidence of peritonitis or ultrafiltration volume did not differ between the two groups. CONCLUSION: Using the low GDP solution resulted in a better preservation of peritoneal mesothelial mass and an improvement of local peritoneal homeostasis, which are supposed to contribute to the biocompatibility of peritoneal dialysis fluid.
Dialysis Solutions ; Glucose ; Guanosine Diphosphate* ; Homeostasis ; Hot Temperature ; Humans ; Incidence ; Lactic Acid ; Peritoneal Dialysis* ; Peritoneal Dialysis, Continuous Ambulatory ; Peritonitis ; Prospective Studies ; Sterilization ; Ultrafiltration

Background: Enlarged perivascular space (ePVS) is recently reported to be associated with cerebral small vessel disease (SVD) and Alzheimer’s disease (AD). The topographical location of ePVS may relate to the underlying pathology; basal ganglia (BG)-ePVS has been associated with cerebral vascular diseases and centrum semi-ovale (CSO)-ePVS associated with cerebral amyloid angiopathy (CAA). However, the effects of ePVS on various neurological conditions remain still controversial. To investigate the clinical relevance of ePVS in neurodegenerative diseases, we tested relationships between ePVS and cognition, markers of SVD, vascular risk factors, or amyloid pathology. Methods: We retrospectively reviewed 292 patients (133 AD dementia, 106 mild cognitive impairment, 39 other neurodegenerative diseases, 14 subjective cognitive decline) who underwent both amyloid positron emission tomography and brain magnetic resonance imaging. Vascular risk factors and cognitive tests results were collected. The ePVS in the BG and CSO, SVD markers and the volume of white matter hyperintensities were measured. Results: There were no significant differences in the severity and distribution of ePVS among clinical syndromes. Both BG- and CSO-ePVS were not related to cognitive function. Patients with lacunes were more likely to have high-degree BG-ePVS. High degree CSO-ePVS had an odds ratio (OR) for amyloid positive of 2.351, while BG-ePVS was a negative predictor for amyloid pathology (OR, 0.336). Conclusions Our findings support that ePVS has different underlying pathologies according to the cerebral topography. BG-ePVS would be attributed to hypertensive angiopathy considering the relation with SVD markers, whereas and CSO-ePVS would be attributed to CAA considering the association with amyloid pathology.

BACKGROUND/AIMS: Primary epiploic appendagitis (PEA) is a rare cause of focal abdominal pain in otherwise healthy patients. Patients with acute abdominal pain are often misdiagnosed clinically as acute appendicitis or diverticulitis. The purpose of this study was to describe the clinical presentation and characteristic computed tomography (CT) findings of PEA. METHODS: We reviewed the clinical records and CT images of 23 consecutive patients in Korea who presented with acute abdominal pain between January 2005 and February 2009 and had radiologic signs of PEA. RESULTS: Twenty-three patients (7 females and 16 males; average age, 42+/-14 years) were diagnosed with symptomatic PEA. Abdominal pain localized to the left (8 patients [44.5%]) and right (10 patients [55.5%]) lower quadrants as the leading symptom. CT findings specific for PEA were present in all patients except one. The symptoms resolved within 1 week (mean, 3.5 days) with or without antibiotic treatment. CONCLUSIONS: In patients with localized, sharp, acute abdominal pain not associated with other symptoms, such as nausea, vomiting, fever or atypical laboratory values, the diagnosis of PEA should be considered and the diagnosis confirmed by CT scan.
Abdomen, Acute ; Abdominal Pain ; Appendicitis ; Diverticulitis ; Female ; Fever ; Humans ; Korea ; Nausea ; Peas ; Vomiting