1.The Effect of a 6Fr Transurethral Catheter on the Urinary Flow in Female Pressure-Flow Studies.
Jaeyoung JOUNG ; Hyunsub CHO ; Younghwan JI ; Jun Tag PARK ; Youngjae KIM ; Myung Soo CHOO
Journal of the Korean Continence Society 2001;5(2):64-72
PURPOSE: We evaluated whether a 6Fr transurethral catheter affects urinary flow in women undergoing pressure-flow studies. MATERIALS AND METHODS: We retrospectively reviewed urodynamics database of 201 consecutive women referred for the evaluation of lower urinary tract symptoms from January 1997 to June 2000. Before the urodynamic study, all patients voided privately using a standard toilet and free uroflowmetry parameters were recorded. Then, a standard pressure-flow study was performed using 6Fr transurethral catheter. We excluded the patients with inadequate voided volume(<150ml) and volume difference more than 30% between two studies. Urinary flow parameters between the two studies were analysed by paired t-test according to voided volume, main urodynamic diagnosis and uroflowmetry pattern. RESULTS: Of 201 women, 144 were excluded and 57 were subjects of our analysis. According to voided volume, pressure-flow study parameters were significantly different from the equivalent free uroflowmetry parameters: the maximum flow rate and average flow rate were significantly lower and flow time was significantly longer in pressure-flow studies(p<0.01). According to main urodynamic diagnosis categories, the subgroups of patients with normal urodynamic study, bladder outlet obstruction, detrusor instability and others showed significantly lower maximum flow rate and average flow rate in pressure-flow studies(p<0.01). According to uroflowmetry pattern, obstructive patterns such as undulating and intermittent pattern were more common in pressure-flow studies. CONCLUSIONS: The 6Fr transurethral catheter used in pressure-flow studies significantly affects urinary flow parameters. In order to make a accurate diagnosis, we must not merely rely on the results of pressure-flow studies, but we must take into account patient's individual clinical situation and also, if available, the results of free uroflowmetry in addition to pressure flow study parameters.
Catheters*
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Diagnosis
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Female
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Humans
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Lower Urinary Tract Symptoms
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Retrospective Studies
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Urinary Bladder Neck Obstruction
;
Urodynamics
3.An Immunoglobulin G4-Related Sclerosing Disease of the Small Bowel: CT and Small Bowel Series Findings.
Younghwan KO ; Ji Young WOO ; Jeong Won KIM ; Hye Sook HONG ; Ik YANG ; Yul LEE ; Daehyun HWANG ; Seon Jeong MIN
Korean Journal of Radiology 2013;14(5):776-780
Immunoglobulin G4 (IgG4)-related sclerosing disease is rare and is known to involve various organs. We present a case of histologically proven IgG4-related sclerosing disease of the small bowel with imaging findings on computed tomography (CT) and small bowel series. CT showed irregular wall thickening, loss of mural stratification and aneurysmal dilatation of the distal ileum. Small bowel series showed aneurysmal dilatations, interloop adhesion with traction and abrupt angulation.
Adult
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Antibodies, Anti-Idiotypic/immunology
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Autoimmune Diseases/*diagnosis/immunology
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Humans
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Immunoglobulin G/*immunology
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Intestine, Small/*pathology/radiography
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Male
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Multidetector Computed Tomography/*methods
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Sclerosis/diagnosis/immunology
4.A Case of Anti-programmed Cell Death Ligand 1 and Anti-transforming Growth Factor Beta Antibody-associated Keratoacanthoma
Hyun Jeong BYUN ; YoungHwan CHOI ; Chan Seong PARK ; Youngkyoung LIM ; Sewon PARK ; Dong-Youn LEE ; Ji-Hye PARK
Korean Journal of Dermatology 2020;58(3):204-206
Keratoacanthomas (KAs) are epithelial skin tumors characterized by rapid growth and spontaneous regression, with histopathologic features similar to those of cutaneous squamous cell carcinoma (SCC). KA arising after the use of anti-programmed cell death protein 1 (PD1) and anti-transforming growth factor beta (TGF-β) antibody have been reported. The patient in the present case was administered a new anti-cancer drug under clinical trial, which comprised anti-PD-ligand 1 (PD-L1) and anti-TGF-β antibodies. Nine months after the drug was used, a hyperkeratotic nodular lesion appeared on the patient's left arm. As a result of histopathologic examination by excision of the corresponding lesion, it was diagnosed as KA.
5.Outcomes of Coronary Artery Bypass Grafting after Extracorporeal Life Support in Patients with Cardiac Arrest or Cardiogenic Shock
Younghwan KIM ; Yang Hyun CHO ; Ji Hyuk YANG ; Kiick SUNG ; Young Tak LEE ; Wook Sung KIM ; Heemoon LEE ; Su Hyun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2019;52(2):70-77
BACKGROUND: Extracorporeal life support (ECLS) is used as a bridge to revascularization in high-risk patients with ischemic heart disease. We reviewed our experiences of coronary artery bypass grafting (CABG) after ECLS in patients with cardiac arrest or refractory cardiogenic shock. METHODS: We retrospectively reviewed 4,616 patients who underwent CABG at our institution between May 2006 and February 2017. We identified patients who underwent CABG following ECLS for cardiogenic shock or cardiac arrest. Twenty-three patients (0.5% of all CABG cases) were enrolled in the analysis. Their median age was 65 years (Q1–Q3, 58–77 years). Nine patients (39.1%) were diagnosed with ST-elevation myocardial infarction. Mechanical complications after acute myocardial infarction, including acute mitral regurgitation, left ventricular rupture, and ventricular septal defect, occurred in 9 patients (39.1%). RESULTS: The median time from cardiopulmonary resuscitation to ECLS initiation was 25 minutes (Q1–Q3, 18.5–28.5 minutes). Conventional CABG was performed in 10 patients (43.5%) who underwent concomitant intracardiac procedures. Postoperative ECLS was required in 16 patients (69.5%). The rate of successful ECLS weaning was 91.3% (n=21). There were 6 early mortalities (26.1%). CONCLUSION: CABG after ECLS was very rare in real-world circumstances. Although the early mortality rate was high, the risk of mortality may be acceptable under such devastating circumstances.
Cardiopulmonary Resuscitation
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Coronary Artery Bypass
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Coronary Vessels
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Extracorporeal Membrane Oxygenation
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Heart Arrest
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Heart Septal Defects, Ventricular
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Humans
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Mitral Valve Insufficiency
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Mortality
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Myocardial Infarction
;
Myocardial Ischemia
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Retrospective Studies
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Rupture
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Shock, Cardiogenic
;
Weaning
6.Outcomes of Coronary Artery Bypass Grafting after Extracorporeal Life Support in Patients with Cardiac Arrest or Cardiogenic Shock
Younghwan KIM ; Yang Hyun CHO ; Ji Hyuk YANG ; Kiick SUNG ; Young Tak LEE ; Wook Sung KIM ; Heemoon LEE ; Su Hyun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2019;52(2):70-77
BACKGROUND:
Extracorporeal life support (ECLS) is used as a bridge to revascularization in high-risk patients with ischemic heart disease. We reviewed our experiences of coronary artery bypass grafting (CABG) after ECLS in patients with cardiac arrest or refractory cardiogenic shock.
METHODS:
We retrospectively reviewed 4,616 patients who underwent CABG at our institution between May 2006 and February 2017. We identified patients who underwent CABG following ECLS for cardiogenic shock or cardiac arrest. Twenty-three patients (0.5% of all CABG cases) were enrolled in the analysis. Their median age was 65 years (Q1–Q3, 58–77 years). Nine patients (39.1%) were diagnosed with ST-elevation myocardial infarction. Mechanical complications after acute myocardial infarction, including acute mitral regurgitation, left ventricular rupture, and ventricular septal defect, occurred in 9 patients (39.1%).
RESULTS:
The median time from cardiopulmonary resuscitation to ECLS initiation was 25 minutes (Q1–Q3, 18.5–28.5 minutes). Conventional CABG was performed in 10 patients (43.5%) who underwent concomitant intracardiac procedures. Postoperative ECLS was required in 16 patients (69.5%). The rate of successful ECLS weaning was 91.3% (n=21). There were 6 early mortalities (26.1%).
CONCLUSION
CABG after ECLS was very rare in real-world circumstances. Although the early mortality rate was high, the risk of mortality may be acceptable under such devastating circumstances.
7.Psoriasiform Dermatitis Related with T-Cell Immunoreceptor with Immunoglobulin and Immunoreceptor Tyrosine-Based Inhibitory Motif Domains Inhibitor in a Patient with Non-Small-Cell Lung Cancer
YoungHwan CHOI ; Donghwi JANG ; Hyun Jeong BYUN ; Se Jin OH ; Cho Rok KIM ; Ji Hye PARK ; Jong Hee LEE ; Dong Youn LEE
Annals of Dermatology 2020;32(2):172-174