1.Early bronchoscopy in severe pneumonia patients in intensive care unit: insights from the Medical Information Mart for Intensive Care-IV database analysis
Chiwon AHN ; Yeonkyung PARK ; Yoonseok OH
Acute and Critical Care 2024;39(1):179-185
		                        		
		                        			
		                        			 Pneumonia frequently leads to intensive care unit (ICU) admission and is associated with a high mortality risk. This study aimed to assess the impact of early bronchoscopy administered within 3 days of ICU admission on mortality in patients with pneumonia using the Medical Information Mart for Intensive Care-IV (MIMIC-IV) database. Methods: A single-center retrospective analysis was conducted using the MIMIC-IV data from 2008 to 2019. Adult ICU-admitted patients diagnosed with pneumonia were included in this study. The patients were stratified into two cohorts based on whether they underwent early bronchoscopy. The primary outcome was the 28-day mortality rate. Propensity score matching was used to balance confounding variables. Results: In total, 8,916 patients with pneumonia were included in the analysis. Among them, 783 patients underwent early bronchoscopy within 3 days of ICU admission, whereas 8,133 patients did not undergo early bronchoscopy. The primary outcome of the 28-day mortality between two groups had no significant difference even after propensity matched cohorts (22.7% vs. 24.0%, P=0.589). Patients undergoing early bronchoscopy had prolonged ICU (P<0.001) and hospital stays (P<0.001) and were less likely to be discharged to home (P<0.001). Conclusions: Early bronchoscopy in severe pneumonia patients in the ICU did not reduce mortality but was associated with longer hospital stays, suggesting it was used in more severe cases. Therefore, when considering bronchoscopy for these patients, it's important to tailor the decision to each individual case, thoughtfully balancing the possible advantages with the related risks. 
		                        		
		                        		
		                        		
		                        	
2.Early bronchoscopy in severe pneumonia patients in intensive care unit: insights from the Medical Information Mart for Intensive Care-IV database analysis
Chiwon AHN ; Yeonkyung PARK ; Yoonseok OH
Acute and Critical Care 2024;39(1):179-185
		                        		
		                        			
		                        			 Pneumonia frequently leads to intensive care unit (ICU) admission and is associated with a high mortality risk. This study aimed to assess the impact of early bronchoscopy administered within 3 days of ICU admission on mortality in patients with pneumonia using the Medical Information Mart for Intensive Care-IV (MIMIC-IV) database. Methods: A single-center retrospective analysis was conducted using the MIMIC-IV data from 2008 to 2019. Adult ICU-admitted patients diagnosed with pneumonia were included in this study. The patients were stratified into two cohorts based on whether they underwent early bronchoscopy. The primary outcome was the 28-day mortality rate. Propensity score matching was used to balance confounding variables. Results: In total, 8,916 patients with pneumonia were included in the analysis. Among them, 783 patients underwent early bronchoscopy within 3 days of ICU admission, whereas 8,133 patients did not undergo early bronchoscopy. The primary outcome of the 28-day mortality between two groups had no significant difference even after propensity matched cohorts (22.7% vs. 24.0%, P=0.589). Patients undergoing early bronchoscopy had prolonged ICU (P<0.001) and hospital stays (P<0.001) and were less likely to be discharged to home (P<0.001). Conclusions: Early bronchoscopy in severe pneumonia patients in the ICU did not reduce mortality but was associated with longer hospital stays, suggesting it was used in more severe cases. Therefore, when considering bronchoscopy for these patients, it's important to tailor the decision to each individual case, thoughtfully balancing the possible advantages with the related risks. 
		                        		
		                        		
		                        		
		                        	
3.Early bronchoscopy in severe pneumonia patients in intensive care unit: insights from the Medical Information Mart for Intensive Care-IV database analysis
Chiwon AHN ; Yeonkyung PARK ; Yoonseok OH
Acute and Critical Care 2024;39(1):179-185
		                        		
		                        			
		                        			 Pneumonia frequently leads to intensive care unit (ICU) admission and is associated with a high mortality risk. This study aimed to assess the impact of early bronchoscopy administered within 3 days of ICU admission on mortality in patients with pneumonia using the Medical Information Mart for Intensive Care-IV (MIMIC-IV) database. Methods: A single-center retrospective analysis was conducted using the MIMIC-IV data from 2008 to 2019. Adult ICU-admitted patients diagnosed with pneumonia were included in this study. The patients were stratified into two cohorts based on whether they underwent early bronchoscopy. The primary outcome was the 28-day mortality rate. Propensity score matching was used to balance confounding variables. Results: In total, 8,916 patients with pneumonia were included in the analysis. Among them, 783 patients underwent early bronchoscopy within 3 days of ICU admission, whereas 8,133 patients did not undergo early bronchoscopy. The primary outcome of the 28-day mortality between two groups had no significant difference even after propensity matched cohorts (22.7% vs. 24.0%, P=0.589). Patients undergoing early bronchoscopy had prolonged ICU (P<0.001) and hospital stays (P<0.001) and were less likely to be discharged to home (P<0.001). Conclusions: Early bronchoscopy in severe pneumonia patients in the ICU did not reduce mortality but was associated with longer hospital stays, suggesting it was used in more severe cases. Therefore, when considering bronchoscopy for these patients, it's important to tailor the decision to each individual case, thoughtfully balancing the possible advantages with the related risks. 
		                        		
		                        		
		                        		
		                        	
4.Early bronchoscopy in severe pneumonia patients in intensive care unit: insights from the Medical Information Mart for Intensive Care-IV database analysis
Chiwon AHN ; Yeonkyung PARK ; Yoonseok OH
Acute and Critical Care 2024;39(1):179-185
		                        		
		                        			
		                        			 Pneumonia frequently leads to intensive care unit (ICU) admission and is associated with a high mortality risk. This study aimed to assess the impact of early bronchoscopy administered within 3 days of ICU admission on mortality in patients with pneumonia using the Medical Information Mart for Intensive Care-IV (MIMIC-IV) database. Methods: A single-center retrospective analysis was conducted using the MIMIC-IV data from 2008 to 2019. Adult ICU-admitted patients diagnosed with pneumonia were included in this study. The patients were stratified into two cohorts based on whether they underwent early bronchoscopy. The primary outcome was the 28-day mortality rate. Propensity score matching was used to balance confounding variables. Results: In total, 8,916 patients with pneumonia were included in the analysis. Among them, 783 patients underwent early bronchoscopy within 3 days of ICU admission, whereas 8,133 patients did not undergo early bronchoscopy. The primary outcome of the 28-day mortality between two groups had no significant difference even after propensity matched cohorts (22.7% vs. 24.0%, P=0.589). Patients undergoing early bronchoscopy had prolonged ICU (P<0.001) and hospital stays (P<0.001) and were less likely to be discharged to home (P<0.001). Conclusions: Early bronchoscopy in severe pneumonia patients in the ICU did not reduce mortality but was associated with longer hospital stays, suggesting it was used in more severe cases. Therefore, when considering bronchoscopy for these patients, it's important to tailor the decision to each individual case, thoughtfully balancing the possible advantages with the related risks. 
		                        		
		                        		
		                        		
		                        	
5.Validation of the Korean version Moorehead-Ardelt quality of life questionnaire II.
Yeon Ji LEE ; Hyun Jin SONG ; Yoonseok HEO ; Sung Hee OH ; Jin Won KWON ; Kon Hak MOON ; Joong Min PARK ; Sang Kuon LEE
Annals of Surgical Treatment and Research 2014;87(5):265-272
		                        		
		                        			
		                        			PURPOSE: To investigate the weight loss effects with higher sensitivity, disease specific quality of life (QoL) instruments were important. The Moorehead-Ardelt quality of life questionnaire II (MA-II) is widely used, because it was simple and validated the several languages. The aims of present study was performed the translation of MA-II Korean version and the validation compared with EuroQol-5 dimension (EQ-5D), obesity-related problems scale (OP-scale), and impact of weight quality of life-lite (IWQoL-Lite). METHODS: The study design was a multicenter, cross-sectional survey and this study was included the postoperative patients. The validation procedure is translation-back translation procedure, pilot study, and field study. The instruments of measuring QoL included the MA-II, EQ-5D, OP-scale, and IWQoL-lite. The reliability was checked through internal consistency using Cronbach alpha coefficients. The construct validity was assessed the Spearman rank correlation between 6 domains of MA-II and EQ-5D, OP-scale, and 5 domains of IWQoL-Lite. RESULTS: The Cronbach alpha of MA-II was 0.763, so the internal consistency was confirmed. The total score of MA-II was significantly correlated with all other instruments; EQ-5D, OP-scale, and IWQoL-Lite. IWQoL-lite (rho = 0.623, P < 0.001) was showed the strongest correlation compared with MA-II, followed by OP-scale (rho = 0.588, P < 0.001) and EQ-5D (rho = 0.378, P < 0.01). CONCLUSION: The Korean version MA-II was valid instrument of measuring the obesity-specific QoL. Through the present study, the MA-II was confirmed to have good reliability and validity and it was also answered simple for investigating. Thus, MA-II could be estimated sensitive and exact QoL in obesity patients.
		                        		
		                        		
		                        		
		                        			Bariatric Surgery
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Obesity
		                        			;
		                        		
		                        			Pilot Projects
		                        			;
		                        		
		                        			Quality of Life*
		                        			;
		                        		
		                        			Reproducibility of Results
		                        			;
		                        		
		                        			Weight Loss
		                        			;
		                        		
		                        			Surveys and Questionnaires
		                        			
		                        		
		                        	
6.A Case of Atrophoderma of Pasini and Pierini Associated with Borrelia burgdorferi Infection Successfully Treated with Oral Doxycycline.
Yoonhee LEE ; Yoonseok OH ; Seok yong AHN ; Hwa young PARK ; Eung Ho CHOI
Annals of Dermatology 2011;23(3):352-356
		                        		
		                        			
		                        			Atrophoderma of Pasini and Pierini is a form of dermal atrophy that manifests as either single or multiple, sharply demarcated, hyperpigmented, non-indurated patches. These patches are marked by a slight depression of the skin, with an abrupt edge (i.e., the "cliff-drop" borders), usually located on the backs of adolescents or young adults. The pathophysiology of the disease is unknown, but some authors have suggested a role of Borrelia burgdorferi infection. A 35-year-old woman visited our department because of asymptomatic, hypopigmented, depressed patches on her chest and back lasting for three months. Laboratory evaluations were normal, except for positive serum antibodies to Borrelia burgdorferi. Histologic examination revealed a significantly decreased thickness of the dermis. The patient underwent treatment with oral doxycycline 200 mg/day for six weeks, after which the depth of depression was improved. Herein, we report a case of atrophoderma of Pasini and Pierini, associated with Borrelia burgdorferi infection, successfully treated with oral doxycycline.
		                        		
		                        		
		                        		
		                        			Adolescent
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Antibodies
		                        			;
		                        		
		                        			Atrophy
		                        			;
		                        		
		                        			Borrelia
		                        			;
		                        		
		                        			Borrelia burgdorferi
		                        			;
		                        		
		                        			Depression
		                        			;
		                        		
		                        			Dermis
		                        			;
		                        		
		                        			Doxycycline
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Skin
		                        			;
		                        		
		                        			Thorax
		                        			;
		                        		
		                        			Young Adult
		                        			
		                        		
		                        	
7.A Case of Schwannoma of the Upper Lip.
Jae Hong KIM ; Yoonseok OH ; Soo Young JEON ; Seung Phil HONG
Korean Journal of Dermatology 2009;47(9):1087-1089
		                        		
		                        			
		                        			Schwannoma, also known as a neurilemmoma, is a benign neurogenic tumor that arises from Schwann cells of the nerve sheath. Usually, it occurs as a slowly-growing, well-circumscribed solitary nodule on the head and neck, trunk, or extremities. However, it is rare on the oral mucosa, especially on the lip. Histologically, the lesion is characterized by an encapsulated nodule that consists of Antoni A cellular tissues with verocay bodies, and Antoni B loose myxoid tissues. Herein, we report a case of a schwannoma of the upper lip, which is a rare location
		                        		
		                        		
		                        		
		                        			Extremities
		                        			;
		                        		
		                        			Head
		                        			;
		                        		
		                        			Lip
		                        			;
		                        		
		                        			Mouth Mucosa
		                        			;
		                        		
		                        			Neck
		                        			;
		                        		
		                        			Neurilemmoma
		                        			;
		                        		
		                        			Schwann Cells
		                        			
		                        		
		                        	
8.Clinical Study of Erythema Migrans.
Yoonseok OH ; Minseob EOM ; Mee Yon CHO ; Jong Bae KIM ; Eung Ho CHOI
Korean Journal of Dermatology 2008;46(5):596-603
		                        		
		                        			
		                        			BACKGROUND: Lyme disease, an infection caused by Borrelia(B.) burgdorferi, has been reported in many countries. But in Korea, only 5 cases of serologically diagnosed lyme disease have been reported. Because several strains of B. burgdorferi were isolated from Ixodes ticks which were captured in Kangwon and Chungbuk province, there might be more cases of serologically undiagnosed lyme diseases presenting with erythema migrans. OBJECTIVE: To understand the clinical patterns and laboratory findings of erythema migrans in Korea. METHODS: A clinical survey was retrospectively performed on 9 patients with erythema migrans which occurred after tick bites. RESULTS: Among 9 patients with erythema migrans, 3 patients were male and 6 patients were female. The onset age of erythema migrans ranged from 26 to 71 years old (mean, 51.3 years old). The mean duration of erythema migrans after tick bite was 26.4 days and the diameter of the lesion ranged from 6 to 34 cm (mean, 18.3 cm). All cases developed from May to September and systemic symptoms such as fatigue, fever and/or chills, myalgia, palpitation, headache, arthralgia and dyspnea were present at the time of hospital visits of 3 patients. Clinically, 3 patterns of erythema migrans were seen; typical target pattern, homogenous and erythematous plaque pattern, and linear solitary plaque pattern with central postinflammatory pigmentation. Only 2 of the 7 patients (28.6%) were seropositive for IgM and IgG antibody titers by enzyme-linked immunosorbent assay in consecutive serologic tests. PCR for Borrelia DNA in paraffin-embedded tissue showed full negativity in 6 patients with erythema migrans. CONCLUSION: Although lyme disease is not endemic in Korea, some patients with erythema migrans might be undiagnosed as lyme disease serologically with erythema migrans. To take into consideration false negative serelogic results in early erythema migrans, early oral tetracycline therapy should be included through clinical and historical diagnosis.
		                        		
		                        		
		                        		
		                        			Age of Onset
		                        			;
		                        		
		                        			Arthralgia
		                        			;
		                        		
		                        			Bites and Stings
		                        			;
		                        		
		                        			Borrelia
		                        			;
		                        		
		                        			Chills
		                        			;
		                        		
		                        			DNA
		                        			;
		                        		
		                        			Dyspnea
		                        			;
		                        		
		                        			Enzyme-Linked Immunosorbent Assay
		                        			;
		                        		
		                        			Erythema
		                        			;
		                        		
		                        			Fatigue
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Fever
		                        			;
		                        		
		                        			Glossitis, Benign Migratory
		                        			;
		                        		
		                        			Headache
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Immunoglobulin G
		                        			;
		                        		
		                        			Immunoglobulin M
		                        			;
		                        		
		                        			Ixodes
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Lyme Disease
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Pigmentation
		                        			;
		                        		
		                        			Polymerase Chain Reaction
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Serologic Tests
		                        			;
		                        		
		                        			Tetracycline
		                        			;
		                        		
		                        			Ticks
		                        			
		                        		
		                        	
9.A Case of Secondary Cutaneous Plasmacytoma, IgDlambda Type on Scalp.
Yoonseok OH ; Seok Yong AHN ; Soo Young JEON ; Won Soo LEE
Korean Journal of Dermatology 2008;46(4):525-528
		                        		
		                        			
		                        			Cutaneous plasmacytoma (CP) is a localized collection of monoclonal plasma cells in the skin. The disease is divided into primary cutaneous plasmacytoma and secondary cutaneous plasmacytoma groups. Secondary cutaneous plasmacytoma, which is so rare as to occur in only 2% of myeloma cases, usually represents terminal expression of the primary diseases and is associated with increased tumor burden. CP can occur at any site of the skin, but we could find only 1 case in English literature related to scalp metastasis alone. Also serum and urine electrophoresis, tissue immunohistochemistry for IgD are not usually conducted in the laboratory. IgDlambda subtype seems to be another value to report. We report a case of secondary cutaneous plasmacytoma, IgDlambda type which developed on the scalp alone of a 41-year-old woman, with a review of related literatures.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Electrophoresis
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Immunoglobulin D
		                        			;
		                        		
		                        			Immunohistochemistry
		                        			;
		                        		
		                        			Multiple Myeloma
		                        			;
		                        		
		                        			Neoplasm Metastasis
		                        			;
		                        		
		                        			Plasma Cells
		                        			;
		                        		
		                        			Plasmacytoma
		                        			;
		                        		
		                        			Scalp
		                        			;
		                        		
		                        			Skin
		                        			;
		                        		
		                        			Tumor Burden
		                        			
		                        		
		                        	
10.A Case of Cutaneous Lymphadenoma.
Yoonseok OH ; Minjeong KIM ; Jawoong GOO ; Soo Young JEON ; Hana BAK ; Sung Ku AHN
Korean Journal of Dermatology 2007;45(6):603-607
		                        		
		                        			
		                        			Cutaneous lymphadenoma (CL) is a rare, benign, epithelial neoplasm with a prominent lymphocyte infiltration of unknown histogenesis. Both pilosebaceous and eccrine origins have been suggested, and the current view is that CL is a variant of trichoblastoma with adamantinoid features. We report a case of cutaneous lymphadenoma which developed on the left postauricular area of a 46-year-old woman, plus a review of the related literature.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Lymphocytes
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Neoplasms, Glandular and Epithelial
		                        			
		                        		
		                        	
            
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