1.Clinical characteristics and outcomes of injuries in agricultural and nonagricultural workers visiting the emergency department: a propensity-matched analysis
Jong Yeon KANG ; Sung Wook SONG ; Hansol HONG ; Woo Jeong KIM ; YoungJoon KANG ; Jeong Ho KANG ; Sung Kgun LEE ; Ji Hwan BU ; Seo Young KO ; Soo Hoon LEE
Clinical and Experimental Emergency Medicine 2024;11(1):68-78
Objective:
Agriculture is a hazardous industry. However, previous studies have focused on injuries to agricultural workers without comparison with injuries to nonagricultural workers. Therefore, we compared the clinical characteristics and outcomes of injuries reported at an emergency department (ED) between agricultural workers and nonagricultural workers.
Methods:
We established a prospective ED-based agricultural injury surveillance system at a tertiary university hospital. Adult patients visiting the ED for an injury were divided into farmer and non-farmer groups depending on their engagement with agriculture. Using an adjusted multivariate analysis and propensity score matching (age, sex, inhabitant, and insurance type), we compared the clinical characteristics and outcomes of injuries between the farmer and non-farmer groups.
Results:
In total, 38,556 injured adult patients (37,746 in the non-farmer group and 810 in the farmer group) were available for the unmatched sample analysis. The 1,620 matched subjects were equally classified after one-to-one nearest-neighbor propensity score matching. A multivariate logistic regression analysis of the unmatched sample revealed higher adjusted odds ratios (ORs) for intensive care unit admission (adjusted OR, 1.752; P=0.003) and overall surgery (adjusted OR, 1.870; P<0.001) in the farmer group. In contrast, univariate logistic regression analyses of the propensity score–matched sample found a higher OR in the farmer group only for overall surgery (OR, 1.786; P<0.001).
Conclusion
Injuries of agricultural workers had higher odds only of requiring surgery; differences in injury-related mortality between groups were not statistically significant in either the matched or unmatched sample analyses.
2.Occurrence of a Hybrid Between Taenia saginata and Taenia asiatica Tapeworms in Cambodia
Taehee CHANG ; Bong-Kwang JUNG ; Sooji HONG ; Hyejoo SHIN ; Seungwan RYOO ; Jeonggyu LEE ; Keon Hoon LEE ; Hansol PARK ; Keeseon S. EOM ; Virak KHIEU ; Rekol HUY ; Woon-Mok SOHN ; Jong-Yil CHAI
The Korean Journal of Parasitology 2021;59(2):179-182
Human infection with Taenia asiatica or a hybrid between Taenia saginata and T. asiatica has not been reported in Cambodia. We detected for the first time a hybrid form between T. saginata and T. asiatica in Preah Vihear Province, Cambodia. An adult tapeworm specimen, i.e., 75 cm long strobila without scolex, was expelled from a 27-year-old man after praziquantel medication and purging. It was morphologically indistinguishable between T. saginata and T. asiatica. Several proglottids were molecularly analyzed to confirm the tapeworm species. The mitochondrial gene encoding cytochrome c oxidase subunit 1 (cox1) and nuclear genes encoding elongation factor-1α (ef1) and ezrin-radixin-moesin (ERM)-like protein (elp) were sequenced, and a single-allele analysis was performed to confirm the haploid genotype. The results revealed that our sample showed a discrepancy between the mitochondrial and 2 nuclear genes. It possessed homozygous sequences typical of T. saginata at cox1 and ef1 loci. However, it was heterozygous at the elp locus, with 1 allele in T. asiatica (elpA) and 1 in T. saginata (elpC), which indicates that it is a hybrid between T. saginata and T. asiatica. The present results confirmed the presence of a hybrid between T. saginata and T. asiatica in Cambodia and strongly suggest the existence of also ‘pure’ T. asiatica in Cambodia.
3.Occurrence of a Hybrid Between Taenia saginata and Taenia asiatica Tapeworms in Cambodia
Taehee CHANG ; Bong-Kwang JUNG ; Sooji HONG ; Hyejoo SHIN ; Seungwan RYOO ; Jeonggyu LEE ; Keon Hoon LEE ; Hansol PARK ; Keeseon S. EOM ; Virak KHIEU ; Rekol HUY ; Woon-Mok SOHN ; Jong-Yil CHAI
The Korean Journal of Parasitology 2021;59(2):179-182
Human infection with Taenia asiatica or a hybrid between Taenia saginata and T. asiatica has not been reported in Cambodia. We detected for the first time a hybrid form between T. saginata and T. asiatica in Preah Vihear Province, Cambodia. An adult tapeworm specimen, i.e., 75 cm long strobila without scolex, was expelled from a 27-year-old man after praziquantel medication and purging. It was morphologically indistinguishable between T. saginata and T. asiatica. Several proglottids were molecularly analyzed to confirm the tapeworm species. The mitochondrial gene encoding cytochrome c oxidase subunit 1 (cox1) and nuclear genes encoding elongation factor-1α (ef1) and ezrin-radixin-moesin (ERM)-like protein (elp) were sequenced, and a single-allele analysis was performed to confirm the haploid genotype. The results revealed that our sample showed a discrepancy between the mitochondrial and 2 nuclear genes. It possessed homozygous sequences typical of T. saginata at cox1 and ef1 loci. However, it was heterozygous at the elp locus, with 1 allele in T. asiatica (elpA) and 1 in T. saginata (elpC), which indicates that it is a hybrid between T. saginata and T. asiatica. The present results confirmed the presence of a hybrid between T. saginata and T. asiatica in Cambodia and strongly suggest the existence of also ‘pure’ T. asiatica in Cambodia.
4.Comparison of the ulnar nerve blockade between intertruncal and corner pocket approaches for supraclavicular block: a randomized controlled trial
Yumin JO ; Jiho PARK ; Chahyun OH ; Woosuk CHUNG ; Seunghyun SONG ; Jieun LEE ; Hansol KANG ; Youngkwon KO ; Yoon-Hee KIM ; Boohwi HONG
Korean Journal of Anesthesiology 2021;74(6):522-530
Background:
The corner pocket (CP) approach for supraclavicular block (SCB) prevents ulnar nerve (UN) sparing due to needle proximity to the lower trunk. Improved ultrasound resolution has suggested that the intertruncal (IT) approach is a suitable alternative method. We compared efficiency of these two approaches on the UN blockade.
Methods:
Sixty patients were randomized to undergo SCB using the ultrasound-guided CP or IT approach. For lower trunk blockade, 10 ml of local anesthetic agents (1 : 1 mixture of 0.75% ropivacaine and 1% lidocaine) were injected in the CP (CP approach) or between the lower and middle trunks (IT approach). Additional 15 ml was injected identically to block the middle and upper trunks in both groups. Sensory and motor blockade was evaluated after intervention.
Results:
Complete sensory blockade (75.9% [22/29] vs. 43.3% [13/30], P = 0.023) and complete motor blockade (82.8% [24/29] vs. 50.0% [15/30], P = 0.017) of the UN at 15 min after SCB were significantly more frequent in the IT than in the CP group. Sensory block onset time of the UN was significantly shorter in the IT compared to the CP group (15.0 [10.0; 15.0] min vs. 20.0 [15.0; 20.0] min; P = 0.012).
Conclusions
The IT approach provided a more rapid onset of UN blockade than the CP approach. These results suggest that the IT approach is a suitable alternative to the CP approach and can provide faster surgical readiness.
5.Effects of Intratympanic Injection of Isosorbide on the Vestibular Function of Animal Models of Endolymphatic Hydrops
Minbum KIM ; So Yeon YOON ; Hansol HONG ; Hyun Jun HONG
Clinical and Experimental Otorhinolaryngology 2021;14(4):367-373
Objectives:
. The aims of this study were to investigate the effects of intratympanic injections of isosorbide on vestibular function in animal models of endolymphatic hydrops and to find a new treatment option for the acute onset of vertigo in Ménière disease (MD).
Methods:
. Seventy male guinea pigs received intratympanic injection of isosorbide (IT-ISB). The animals were divided into three study groups: control, a chronic hydrops model, and an acute hydrops model. Intracochlear drug concentrations were measured using high-performance liquid chromatography. Vestibular function was analyzed using an animal rotator test with bidirectional sinusoidal harmonic acceleration before and after IT-ISB administration. Histological changes were also investigated.
Results:
. ISB successfully permeated the perilymph through the round window membrane (RWM) at all three concentrations (25%, 50%, and 100%). In the chronic hydrops model, while IT-ISB histologically induced a reduction of endolymphatic hydrops, vestibular function was unchanged. In the acute hydrops model, no endolymphatic hydrops was histologically observed, and vestibular symmetry was also preserved after IT-ISB.
Conclusion
. ISB passed through the RWM into the perilymphatic space even at lower concentrations. IT-ISB histologically reduced hydrops in the chronic model and preserved symmetrical vestibular function in the acute model. IT-ISB could be a treatment candidate for acute attacks of vertigo in MD.
6.The Characteristics and Types of Psychiatric Consultation for Insomnia Symptom in Hospitalized Patients
Hansol JEON ; Seung Ho RYU ; Jee Hyun HA ; Hong Jun JEON ; Doo Heum PARK
Sleep Medicine and Psychophysiology 2018;25(2):68-73
OBJECTIVES: The purpose of this study was to explore insomniac demographic characteristics and the type of consultation provided to hospitalized patients asked to the Department of Psychiatry for insomnia and to compare patient insomnia characteristics by consultation type. METHODS: We performed a retrospective chart review of 4,966 patients who were hospitalized from August 1, 2005 to December 31, 2011 that received consultation in the Department of Psychiatry. Among them, 236 patients were referred for insomnia. We compared the differences in demographic characteristics and types of consultation between the insomnia patient group and other patient group. We also compared the difference between demographic characteristics and type of consultation by dividing total subjects into ‘with reconsultation’ and ‘without reconsultation’ groups. RESULTS: Our results came from the analysis of 9,689 consecutive consultation requests. There were 4,966 patients that participated in the study over 6 years and 6 months. The overall consultation rate was 3.3% of all admissions and insomnia patients comprised 4.8% of those. The ratio of re-consultation for insomnia was 27.5%. There was no significant difference in mean age between the insomnia ‘with reconsultation group’ and the insomnia ‘without reconsultation group’, but the ‘with reconsultation’ group had significantly more male patients and medical patients than the ‘without re-consultation’ group. For insomnia patients, consultation types were in the order of Mending request (51.3%), Paralle request (36.6%), Complementary request (9.0%) and this composition differed from that of total admission patients. CONCLUSION: Hospitalized patients referred for insomnia showed a higher proportion of male patients, lower rates of re-consultation compared with other patients, and most of these were for secondary insomnia. Each doctor should be aware of the possibility of inpatient insomnia, conduct positive assessments and referrals as necessary, and psychiatrists who might be asked for consultation need to prepare an active intervention with initial diagnosis and treatment, as well as recommendations for the timing of reconsultation.
Diagnosis
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Humans
;
Inpatients
;
Male
;
Psychiatry
;
Referral and Consultation
;
Retrospective Studies
;
Sleep Initiation and Maintenance Disorders
7.Genetic and Morphologic Identification of Spirometra ranarum in Myanmar
Hyeong Kyu JEON ; Hansol PARK ; Dongmin LEE ; Seongjun CHOE ; Yeseul KANG ; Mohammed Mebarek BIA ; Sang Hwa LEE ; Woon Mok SOHN ; Sung Jong HONG ; Jong Yil CHAI ; Keeseon S EOM
The Korean Journal of Parasitology 2018;56(3):275-280
In the present study, we identified a Spirometra species of Myanmar origin (plerocercoid) by molecular analysis using mitochondrial cox1 and nad1 genes, as well as by morphological observations of an adult tapeworm. Spargana specimens were collected from a paddy-field in Taik Kyi Township Tarkwa Village, Yangon, Myanmar in December 2017. A total of 5 spargana were obtained from 20 frogs Hoplobatrachus rugulosus; syn: Rana rugulosa (Wiegmann, 1834) or R. tigrina (Steindachner, 1867). The plerocercoids were used for experimental infection of a dog. After 4 weeks of infection, an adult tapeworm was recovered from the intestine of the dog. Morphologically, the distinct features of Spirometra sp. (Myanmar origin) relative to S. erinaceieuropaei and S. decipiens include a uterine morphology comprising posterior uterine coils that larger than the terminal uterine ball and coiling of the uteri diagonally (swirling) rather than spirally. The cox1 sequences (1,566 bp) of the Myanmar-origin Spirometra species showed 97.9% similarity to a reference sequence of S. decipiens (GenBank no. KJ599679) and 90.5% similarity to a reference sequence of S. erinaceieuropaei (GenBank no. KJ599680). Phylogenetic tree topologies were identical and presented high confidence level of values for the 3 major branches of the 3 Spirometra species in cox1 and nad1 genes. These results indicated that Myanmar-origin Spirometra species coincided with those of S. ranarum and may be considered as a valid species.
Adult
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Animals
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Cestoda
;
Dogs
;
Genes, vif
;
Humans
;
Intestines
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Myanmar
;
Ranidae
;
Spirometra
;
Trees
;
Uterus
8.The Effects of Remifentanil on Expression of High Mobility Group Box 1 in Septic Rats.
Kwon Hui SEO ; Jin Woo CHOI ; Hong Soo JUNG ; Hansol YOO ; Jin Deok JOO
Journal of Korean Medical Science 2017;32(3):542-551
High mobility group box 1 (HMGB1) is a pivotal mediator of sepsis progression. Remifentanil, an opioid agonist, has demonstrated anti-inflammatory effects in septic mice. However, it is not yet known whether remifentanil affects the expression of HMGB1. We investigated the effects of remifentanil on HMGB1 expression and the underlying mechanism in septic rats. Forty-eight male Sprague-Dawley rats were randomly divided into 3 groups; a sham group, a cecal ligation and puncture (CLP) group, and a CLP with remifentanil treatment (Remi) group. The rat model of CLP was used to examine plasma concentrations of proinflammatory cytokines, tissue HMGB1 mRNA and the activity of nuclear factor (NF)-κB in the liver, lungs, kidneys, and ileum. Pathologic changes and immunohistochemical staining of NF-κB in the liver, lungs, and kidneys tissue were observed. We found that remifentanil treatment suppressed the level of serum interleukin (IL)-6 and tumor necrosis factor (TNF)-α 6 hours after CLP, and serum HMGB1 24 hours after CLP. HMGB1 mRNA levels and the activity of NF-κB in multiple organs decreased by remifentanil treatment 24 hours after CLP. Remifentanil treatment also attenuated nuclear expression of NF-κB in immunohistochemical staining and mitigated pathologic changes in multiple organs. Altogether, these results suggested that remifentanil inhibited expression of HMGB1 in vital organs and release of HMGB1 into plasma. The mechanism was related to the inhibitory effect of remifentanil on the release of proinflammatory cytokines and activation of NF-κB.
Animals
;
Cytokines
;
HMGB1 Protein
;
Humans
;
Ileum
;
Inflammation
;
Interleukins
;
Kidney
;
Ligation
;
Liver
;
Lung
;
Male
;
Mice
;
Models, Animal
;
Plasma
;
Punctures
;
Rats*
;
Rats, Sprague-Dawley
;
RNA, Messenger
;
Sepsis
;
Tumor Necrosis Factor-alpha
9.The Differences of Clinical Features between Alzheimer's Disease and Vascular Dementia According to Progression.
Tae You KIM ; Soo Young KIM ; Eung Gyu KIM ; Jae Woo KIM ; Kyung Won PARK ; Sang Min SUNG ; Taehong SOHN ; Kyung Sook ANN ; Bong Goo YOO ; Soo Jin YOON ; Sung Min YOON ; Sang Chan LEE ; Hae Kwan CHEONG ; Mun Seong CHOI ; Tae Yong HONG
Journal of the Korean Neurological Association 2006;24(4):337-346
BACKGROUND: The differences in clinical features are important when differentiating between Alzheimer's disease (AD) and vascular dementia (VD). There have been many studies comparing the severity of progression in both diseases. They have assessed individual symptoms but have not explained the differences and global change of progression comprehensively. We have evaluated the cognitive and non-cognitive functions at the same time and evaluated the differences between AD and VD. METHODS: One hundred and thirty-eight dementia patients from Busan?Gyeongnam Dementia Association outpatient clinics were analyzed. All of the patients underwent the Korean version of the Mini-Mental State Examination (K-MMSE), the expanded version of the Korean Clinical Dementia Rating Scale (CDR), the Korean version of the Neuropsychiatric Inventory (K-NPI), the scales for activity of daily living, and the Short form of the Samsung Dementia Questionnaire (S-SDQ). RESULTS: There were 93 patients with AD and 45 with VD. VD patients revealed more severe Barthel Index of Activity of Daily Living (B-ADL) deficits. AD patients had more severe memory and orientation deficiency in CDR 1 and CDR 2. VD patients revealed much faster decline of K-MMSE score between CDR 2 and CDR 3. CONCLUSIONS: These results suggest that VD patients display more severe B-ADL difficulty, while AD patients display more severe memory difficulty and disorientation. B-ADL progresses in the earlier stages in VD and in the later stages in AD. Global cognitive dysfunction progression is the opposite: in the earlier stages in AD and in the later stages in VD.
Alzheimer Disease*
;
Ambulatory Care Facilities
;
Dementia
;
Dementia, Vascular*
;
Humans
;
Memory
;
Surveys and Questionnaires
;
Weights and Measures
10.The Differences of Behavioral and Psychological Symptoms in the Patients of Alzheimer's Disease and Vascular Dementia.
Tae You KIM ; Soo Young KIM ; Eung Gyu KIM ; Jae Woo KIM ; Kyung Won PARK ; Sang Min SUNG ; Taehong SOHN ; Kyung Sook ANN ; Bong Goo YOO ; Soo Jin YOON ; Sung Min YOON ; Sang Chan LEE ; Hae Kwan CHEONG ; Mun Seong CHOI ; Tae Yong HONG
Journal of the Korean Neurological Association 2006;24(5):458-464
BACKGROUND: Behavioral and psychological symptoms (BPSD) are common in dementia. These may be helpful for clinical differentiation between Alzheimer's disease (AD) and vascular dementia (VD). Most previous studies have reported the prevalence and severity of BPSD regardless of severity of progression. However, we evaluated the differences of BPSD by grading dementia progression and including severe cases only. METHODS: 141 dementia outpatients from clinics of Busan-Gyeongnam Dementia Association in Korea were analyzed. All patients were administered the Korean version of the Neuropsychiatric Inventory (K-NPI), the expanded version of Korean Clinical Dementia Rating Scale (CDR), and the Korean version of Mini-Mental State Examination (K-MMSE). RESULTS: There were 95 patients with AD and 46 patients with VD. AD patients revealed higher frequency of manifested BPSD symptoms and most of subscales showed higher composite scores also. But apathy was more severely and frequently manifested in VD. AD patients had more frequent night-time behavior and aberrant motor symptoms above 3 point in CDR 0.5 and VD patients had more frequent apathy symptom above 3 point in CDR 1. CONCLUSIONS: These results suggest that generally AD patients revealed more frequent and severe BPSDs than VD patients. Apathy was a more dominant symptom in VD. It seemed that some of the symptoms were valuable clues for the differential diagnosis even though a better designed study was required.
Alzheimer Disease*
;
Apathy
;
Behavioral Symptoms
;
Dementia
;
Dementia, Vascular*
;
Diagnosis, Differential
;
Humans
;
Korea
;
Outpatients
;
Prevalence

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