1.Transcatheter Arterial Embolization of Splenic Artery Aneurysms: A Single-Center Experience.
Taein YOON ; Taewon KWON ; Hyunwook KWON ; Youngjin HAN ; Yongpil CHO
Vascular Specialist International 2014;30(4):120-124
PURPOSE: The purpose of this study was to report on splenic artery aneurysms (SAAs) treated by transcatheter embolization in our single-center institution and to evaluate the clinical outcomes of patients with SAA by aneurysm location. MATERIALS AND METHODS: The original medical records and imaging results of 52 patients with SAA treated in our center between January 1, 1995 and December 31, 2013 were reviewed. Of these cases, 7 patients (13.5%) underwent surgery, 4 patients (7.5%) underwent serial observation, and 1 patient had stent insertion only, leaving 40 patients (78.9%) who underwent endovascular treatment using a coil, with or without N-butyl-2-cyanoacrylate. RESULTS: Aneurysms were located in the distal third of the splenic artery in 27 patients (67.5%), in the middle third in 9 cases (22.5%), and in the proximal third in 4 cases (10%). Of the 40 included patients, 25 were female (62.5%). Twenty-eight patients (70%) were asymptomatic. The mean aneurysm diameter was 2.48 cm (range, 0.8-6.0 cm). Complications involved pancreatitis (n=1) and early spleen infarction (n=29: <1/3 in 14, 1/3-2/3 in 10, and >2/3 in 5). Postembolization syndrome was noted in 26 patients (65%). There were no significant differences by aneurysm location in the postoperative increase in the values of white blood cells, amylase, lipase, and C-reactive protein (P=0.067, P=0.881, P=0.891, and P=0.188, respectively). CONCLUSION: At our institution, endovascular management is safe, has high technical success, and represents the first-line treatment for SAA, regardless of aneurysm location.
Amylases
;
Aneurysm*
;
C-Reactive Protein
;
Embolization, Therapeutic
;
Enbucrilate
;
Female
;
Humans
;
Infarction
;
Leukocytes
;
Lipase
;
Medical Records
;
Pancreatitis
;
Spleen
;
Splenic Artery*
;
Stents
2.Supraventricular Tachycardia in Special Population.
International Journal of Arrhythmia 2017;18(1):48-53
Medical and catheter-based ablation therapies have been successfully applied in treating supraventricular tachycardia, supported by abundant evidences from clinical trials. However, Special populations such as pediatric populations, pregnant patients, or patients with congenital heart diseases are easily excluded from clinical trials; thus, caution is needed when adopting results from clinical trials conducted in the usual adult population.
Adult
;
Heart Defects, Congenital
;
Heart Diseases
;
Humans
;
Pediatrics
;
Pregnancy
;
Tachycardia, Supraventricular*
3.An Electroretinographic Changes of Laser-induced Experimental Branch Retinal Vein Occlusion in the Rabbits.
Hokyun CHO ; Jaesoon KIM ; Youngjin KIM
Journal of the Korean Ophthalmological Society 1999;40(7):1893-1902
To verify whether laser-induced branch retinal vein occlusion in the rabbit can be used as the experimental model for the human study. The temporal retinal vein of the right eye was occluded with argon laser photocoagulator with parameters of 500 micrometerspot size, 0.2 second duration, 150-200 microWatt power in twelve pigmented rabbits. The left eye was used as a control. An electroretinogram was taken before and 1,3,7,15 and 28 days after vein occlusion. B/a ratio and oscillatory potentials increased in the eyes with occluded veins. Comparing the pre-occlusion values with those of post-occlusion, the changes were not statistically significant. But differences between the values of right and those of left eye were significant. We can suppose that the discrepancies may result from the difference in timing of examination. In conclusion, the rabbit model of laser-induced experimental branch retinal vein occlusion may not be adequate for the study of clinical branch retinal vein occlusion.
Argon
;
Humans
;
Models, Theoretical
;
Rabbits*
;
Retinal Vein Occlusion*
;
Retinal Vein*
;
Retinaldehyde*
;
Veins
4.Treatment of Tachycardia and Bradycardia in a Persistent Left Superior Vena Cava Patient Who Underwent Warden's Procedure and Tricuspid Annuloplasty.
International Journal of Arrhythmia 2016;17(1):69-73
53-year-old female was admitted to our institution with alternating atrial flutter and junctional bradycardia. The patient had undergone the Warden procedure to correct sinus venosus type atrial septal defect combined with partial anomalous pulmonary venous return, and ring tricuspid annuloplasty for severe tricuspid regurgitation. She also had persistent left superior vena cava (PLSVC). With the assistance of a 3D electroanatomic mapping system, catheter ablation therapy was used successfully to treat atrial flutter associated with a channel in the right atrial scar, and a pacemaker was implanted through the PLSVC because of resulting symptomatic bradycardia.
Atrial Flutter
;
Bradycardia*
;
Cardiac Surgical Procedures
;
Catheter Ablation
;
Cicatrix
;
Female
;
Heart Defects, Congenital
;
Heart Septal Defects, Atrial
;
Humans
;
Middle Aged
;
Pacemaker, Artificial
;
Scimitar Syndrome
;
Tachycardia*
;
Tricuspid Valve Insufficiency
;
Vena Cava, Superior*
5.Choline Contents of Korean Common Foods.
Hyojung CHO ; Jinsuk NA ; Hanok JEONG ; Youngjin CHUNG
The Korean Journal of Nutrition 2008;41(5):428-438
Choline is important for normal membrane function, acetylcholine synthesis and methyl group metabolism. In this study, 185 food items customarily eaten by Koreans were selected from the data of the 2001 Korean National Health and Nutrition Survey and analyzed on the total choline content of the foods using enzymatic method of choline oxidase. Foods with high choline concentration (mg/100 g) were listed in sequence of quail egg (476.04 mg), dried squid (452.42 mg), beef liver (427.16 mg), pork liver (424.92 mg), tuna canned in oil (414.44 mg), boiled and dried anchovy (381.30 mg), dried Alaskan pollack (378.88 mg), chicken egg (309.88 mg), chicken liver (259.38 mg), soybean (238.62 mg), French bread with garlic (193.18 mg) and barley (183.73 mg). From this result, it is shown that dried fishes, prepared fishes, livers, eggs, pulses and cereals might be categorized as high choline food. Citron tea and green tea showed low choline content below 1 mg. Vegetables and fruits were also categorized into low choline food. No choline was detected in red pepper powder, beer, soju, soybean oil and corn oil out of foods analyzed in this study. Further study is required for analytic procedure of the foods of which results are inconsistent with USDA's data such as rice and wheat flour.
Acetylcholine
;
Alcohol Oxidoreductases
;
Beer
;
Bread
;
Capsicum
;
Edible Grain
;
Chickens
;
Choline
;
Corn Oil
;
Decapodiformes
;
Eggs
;
Fishes
;
Fruit
;
Garlic
;
Hordeum
;
Liver
;
Membranes
;
Nutrition Surveys
;
Ovum
;
Oxidoreductases
;
Quail
;
Soybean Oil
;
Soybeans
;
Tea
;
Triticum
;
Tuna
;
Vegetables
6.Technical Tips for Performing Suprahepatic Vena Cava Tumor Thrombectomy in Renal Cell Carcinoma without Using Cardiopulmonary Bypass
Jun Gyo GWON ; Yong-Pil CHO ; Youngjin HAN ; Jungyo SUH ; Seung-Kee MIN
Vascular Specialist International 2023;39(3):23-
Radical nephrectomy with tumor thrombectomy for advanced renal cell carcinoma is an oncologically relevant approach that can achieve long-term survival even in the presence of distant metastases. However, the surgical techniques pose significant challenges. The objective of this clinical review was to present technical recommendations for tumor thrombectomy in the vena cava to facilitate surgical treatment. Transesophageal echocardiography is required to prepare for this procedure. Cardiopulmonary bypass should be considered when the tumor thrombus has invaded the cardiac chamber and clamping is not feasible because of the inability to milk the intracardiac chamber thrombus in the caudal direction. Prior to performing a cavotomy, it is crucial to clamp the contralateral renal vein and infrarenal and suprahepatic inferior vena cava (IVC). If the suprahepatic IVC is separated from the surrounding tissue, it can be gently pulled down toward the patient’s leg until the lower margin of the atrium becomes visible. Subsequently, the tumor thrombus should be carefully pulled downward to a position where it can be clamped. Implementing the Pringle maneuver to reduce blood flow from the hepatic veins to the IVC during IVC cavotomy is simpler than clamping the hepatic veins. Sequential clamping is a two-stage method of dividing thrombectomy by clamping the IVC twice, first suprahepatically and then midretrohepatically. This sequential clamping technique helps minimize hypotension status and the Pringle maneuver time compared to single clamping. Additionally, a spiral cavotomy can decrease the degree of primary closure narrowing. The oncological prognoses of patients can be improved by incorporating these technical recommendations.
7.AI-ECG Supported Decision-Making for Coronary Angiography in Acute Chest Pain: The QCG-AID Study
Jiesuck PARK ; Joonghee KIM ; Soyeon AHN ; Youngjin CHO ; Yeonyee E. YOON
Journal of Korean Medical Science 2025;40(12):e105-
This pilot study evaluates an artificial intelligence (AI)-assisted electrocardiography (ECG) analysis system, QCG, to enhance urgent coronary angiography (CAG) decision-making for acute chest pain in the emergency department (ED). We retrospectively analyzed 300 ED cases, categorized as non-coronary chest pain (Group 1), acute coronary syndrome (ACS) without occlusive coronary artery disease (CAD) (Group 2), and ACS with occlusive CAD (Group 3). Six clinicians made urgent CAG decision using a conventional approach (clinical data and ECG) and a QCG-assisted approach (including QCG scores). The QCG-assisted approach improved correct CAG decisions in Group 2 (36.0% vs. 45.3%, P = 0.003) and Group 3 (85.3% vs. 90.0%, P = 0.017), with minimal impact in Group 1 (92.7% vs. 95.0%, P = 0.125). Diagnostic accuracy for ACS improved from 77% to 81% with QCG assistance and reached 82% with QCG alone, supporting AI's potential to enhance urgent CAG decisionmaking for ED chest pain cases.
8.AI-ECG Supported Decision-Making for Coronary Angiography in Acute Chest Pain: The QCG-AID Study
Jiesuck PARK ; Joonghee KIM ; Soyeon AHN ; Youngjin CHO ; Yeonyee E. YOON
Journal of Korean Medical Science 2025;40(12):e105-
This pilot study evaluates an artificial intelligence (AI)-assisted electrocardiography (ECG) analysis system, QCG, to enhance urgent coronary angiography (CAG) decision-making for acute chest pain in the emergency department (ED). We retrospectively analyzed 300 ED cases, categorized as non-coronary chest pain (Group 1), acute coronary syndrome (ACS) without occlusive coronary artery disease (CAD) (Group 2), and ACS with occlusive CAD (Group 3). Six clinicians made urgent CAG decision using a conventional approach (clinical data and ECG) and a QCG-assisted approach (including QCG scores). The QCG-assisted approach improved correct CAG decisions in Group 2 (36.0% vs. 45.3%, P = 0.003) and Group 3 (85.3% vs. 90.0%, P = 0.017), with minimal impact in Group 1 (92.7% vs. 95.0%, P = 0.125). Diagnostic accuracy for ACS improved from 77% to 81% with QCG assistance and reached 82% with QCG alone, supporting AI's potential to enhance urgent CAG decisionmaking for ED chest pain cases.
9.AI-ECG Supported Decision-Making for Coronary Angiography in Acute Chest Pain: The QCG-AID Study
Jiesuck PARK ; Joonghee KIM ; Soyeon AHN ; Youngjin CHO ; Yeonyee E. YOON
Journal of Korean Medical Science 2025;40(12):e105-
This pilot study evaluates an artificial intelligence (AI)-assisted electrocardiography (ECG) analysis system, QCG, to enhance urgent coronary angiography (CAG) decision-making for acute chest pain in the emergency department (ED). We retrospectively analyzed 300 ED cases, categorized as non-coronary chest pain (Group 1), acute coronary syndrome (ACS) without occlusive coronary artery disease (CAD) (Group 2), and ACS with occlusive CAD (Group 3). Six clinicians made urgent CAG decision using a conventional approach (clinical data and ECG) and a QCG-assisted approach (including QCG scores). The QCG-assisted approach improved correct CAG decisions in Group 2 (36.0% vs. 45.3%, P = 0.003) and Group 3 (85.3% vs. 90.0%, P = 0.017), with minimal impact in Group 1 (92.7% vs. 95.0%, P = 0.125). Diagnostic accuracy for ACS improved from 77% to 81% with QCG assistance and reached 82% with QCG alone, supporting AI's potential to enhance urgent CAG decisionmaking for ED chest pain cases.
10.AI-ECG Supported Decision-Making for Coronary Angiography in Acute Chest Pain: The QCG-AID Study
Jiesuck PARK ; Joonghee KIM ; Soyeon AHN ; Youngjin CHO ; Yeonyee E. YOON
Journal of Korean Medical Science 2025;40(12):e105-
This pilot study evaluates an artificial intelligence (AI)-assisted electrocardiography (ECG) analysis system, QCG, to enhance urgent coronary angiography (CAG) decision-making for acute chest pain in the emergency department (ED). We retrospectively analyzed 300 ED cases, categorized as non-coronary chest pain (Group 1), acute coronary syndrome (ACS) without occlusive coronary artery disease (CAD) (Group 2), and ACS with occlusive CAD (Group 3). Six clinicians made urgent CAG decision using a conventional approach (clinical data and ECG) and a QCG-assisted approach (including QCG scores). The QCG-assisted approach improved correct CAG decisions in Group 2 (36.0% vs. 45.3%, P = 0.003) and Group 3 (85.3% vs. 90.0%, P = 0.017), with minimal impact in Group 1 (92.7% vs. 95.0%, P = 0.125). Diagnostic accuracy for ACS improved from 77% to 81% with QCG assistance and reached 82% with QCG alone, supporting AI's potential to enhance urgent CAG decisionmaking for ED chest pain cases.