1.Comparison of Factors Associated With Direct Versus Transferred-in Admission to Government-Designated Regional Centers Between Acute Ischemic Stroke and Myocardial Infarction in Korea
Dae-Hyun KIM ; Seok-Joo MOON ; Juneyoung LEE ; Jae-Kwan CHA ; Moo Hyun KIM ; Jong-Sung PARK ; Byeolnim BAN ; Jihoon KANG ; Beom Joon KIM ; Won-Seok KIM ; Chang-Hwan YOON ; Heeyoung LEE ; Seongheon KIM ; Eun Kyoung KANG ; Ae-Young HER ; Cindy W YOON ; Joung-Ho RHA ; Seong-Ill WOO ; Won Kyung LEE ; Han-Young JUNG ; Jang Hoon LEE ; Hun Sik PARK ; Yang-Ha HWANG ; Keonyeop KIM ; Rock Bum KIM ; Nack-Cheon CHOI ; Jinyong HWANG ; Hyun-Woong PARK ; Ki Soo PARK ; SangHak YI ; Jae Young CHO ; Nam-Ho KIM ; Kang-Ho CHOI ; Juhan KIM ; Jae-Young HAN ; Jay Chol CHOI ; Song-Yi KIM ; Joon-Hyouk CHOI ; Jei KIM ; Min Kyun SOHN ; Si Wan CHOI ; Dong-Ick SHIN ; Sang Yeub LEE ; Jang-Whan BAE ; Kun Sei LEE ; Hee-Joon BAE
Journal of Korean Medical Science 2022;37(42):e305-
Background:
There has been no comparison of the determinants of admission route between acute ischemic stroke (AIS) and acute myocardial infarction (AMI). We examined whether factors associated with direct versus transferred-in admission to regional cardiocerebrovascular centers (RCVCs) differed between AIS and AMI.
Methods:
Using a nationwide RCVC registry, we identified consecutive patients presenting with AMI and AIS between July 2016 and December 2018. We explored factors associated with direct admission to RCVCs in patients with AIS and AMI and examined whether those associations differed between AIS and AMI, including interaction terms between each factor and disease type in multivariable models. To explore the influence of emergency medical service (EMS) paramedics on hospital selection, stratified analyses according to use of EMS were also performed.
Results:
Among the 17,897 and 8,927 AIS and AMI patients, 66.6% and 48.2% were directly admitted to RCVCs, respectively. Multivariable analysis showed that previous coronary heart disease, prehospital awareness, higher education level, and EMS use increased the odds of direct admission to RCVCs, but the odds ratio (OR) was different between AIS and AMI (for the first 3 factors, AMI > AIS; for EMS use, AMI < AIS). EMS use was the single most important factor for both AIS and AMI (OR, 4.72 vs. 3.90). Hypertension and hyperlipidemia increased, while living alone decreased the odds of direct admission only in AMI;additionally, age (65–74 years), previous stroke, and presentation during non-working hours increased the odds only in AIS. EMS use weakened the associations between direct admission and most factors in both AIS and AMI.
Conclusions
Various patient factors were differentially associated with direct admission to RCVCs between AIS and AMI. Public education for symptom awareness and use of EMS is essential in optimizing the transportation and hospitalization of patients with AMI and AIS.
2.Two-stage Surgery for an Aortoesophageal Fistula Caused by Tuberculous Esophagitis.
Hwa Kyun SHIN ; Chang Woo CHOI ; Jae Woong LIM ; Keun HER
Journal of Korean Medical Science 2015;30(11):1706-1709
An aortoesophageal fistula (AEF) is an extremely rare, potentially fatal condition, and aortic surgery is usually performed together with extracorporeal circulation. However, this surgical method has a high rate of surgical complications and mortality. This report describes an AEF caused by tuberculous esophagitis that was treated successfully using a two-stage operation. A 52-yr-old man was admitted to the hospital with severe hematemesis and syncope. Based on the computed tomography and diagnostic endoscopic findings, he was diagnosed with an AEF and initially underwent thoracic endovascular aortic repair. Esophageal reconstruction was performed after controlling the mediastinal inflammation. The patient suffered postoperative anastomotic leakage, which was treated by an endoscopic procedure, and the patient was discharged without any further problems. The patient received 9 months of anti-tuberculosis treatment after he was diagnosed with histologically confirmed tuberculous esophagitis; subsequently, he was followed as an outpatient and has had no recurrence of the tuberculosis or any further issues.
Aortic Diseases/etiology/*surgery
;
Eosinophilic Esophagitis/*complications/*surgery
;
Esophageal Fistula/etiology/*surgery
;
Esophagoscopy/*methods
;
Humans
;
Male
;
Middle Aged
;
Treatment Outcome
;
Tuberculosis/*complications/surgery
;
Vascular Surgical Procedures/methods
3.Impact of initial blood flow on outcomes of vascular access in hemodialysis patients.
Soo Jeong CHOI ; Moo Yong PARK ; Jin Kuk KIM ; Seung Duk HWANG ; Kyun HER ; Yongsoon WON
Kidney Research and Clinical Practice 2012;31(3):151-156
BACKGROUND: Direct access flow measurements are considered the most useful surveillance method for significant stenosis, and ultrasound dilution has become the most popular and validated technique. The goal of this study was to evaluate access flow (Qa) at the time of first cannulation and its relationship to the survival of vascular access in Korean hemodialysis patients. METHODS: We conducted a prospective observational study from May 2004 to June 2011. We enrolled 60 patients (36 men) who underwent the first access operation between January 2004 and December 2005 and were followed-up for surveillance. RESULTS: Maturation failure occurred in nine patients (15%). Mean time to first use was 1.8+/-1.2 months after surgery. The patients were followed-up for a mean of 50.5+/-25.9 months. There were 25 deaths and six kidney transplants in patients with a functioning access. The total percutaneous transluminal angioplasty incidence was 50 in 27 patients (0.14/access-year). The initial Qa was 757.5+/-476.4 mL/minute. First cannulation time was not significantly correlated with initial Qa (r=0.234, P=0.075). A total of 22 of the 60 patients (36.7%) had an initial Qa<500 mL/minute. Maturation failure, initial Qa<500 mL/minute, and the use of antiplatelet agents were risk factors for poor primary patency. Diabetic status and use of a graft were risk factors for low cumulative patency. CONCLUSION: An initial Qa<500 mL/minute is a risk factor for poor primary patency, while an initial Qa<500 mL/minute is not a risk factor for low cumulative patency or mortality.
Angioplasty
;
Arteriovenous Fistula
;
Catheterization
;
Constriction, Pathologic
;
Humans
;
Incidence
;
Kidney
;
Platelet Aggregation Inhibitors
;
Prospective Studies
;
Renal Dialysis
;
Risk Factors
;
Transplants
4.Bypass Using Autologous Pericardium in the Inflammatory Pseudotumor of the Superior Vena Cava.
Jae Wook LEE ; Kang Seok BAEK ; Yong Soon WON ; Hwa Kyun SHIN ; Keun HER ; Dong Gi LEE
Soonchunhyang Medical Science 2011;17(1):42-44
Among the causes of superior vena cava (SVC) syndrome, intraluminal tumor, especially the inflammatory pseudotumor is very rare. We report a 33-year old male patient who had been suffering from facial edema and flushing for 3 weeks before admission. On physical examination, facial edema and venous engorgement on upper extremities and upper chest wall were showed. The chest computed tomography (CT) scan showed a long intraluminal mass lesion resulting in a near total obstruction of the SVC. Surgery was performed through median sternotomy. After complete resection of the tumor, we make bypass of SVC with autologous pericardium. The follow up chest CT scan revealed no abnormality 3 months after the operation.
Edema
;
Flushing
;
Follow-Up Studies
;
Granuloma, Plasma Cell
;
Humans
;
Hyperemia
;
Male
;
Pericardium
;
Physical Examination
;
Sternotomy
;
Stress, Psychological
;
Superior Vena Cava Syndrome
;
Thoracic Wall
;
Thorax
;
Upper Extremity
;
Vena Cava, Superior
5.Surgical Treatment of Thoracic Desmoid Tumors: 2 case reports.
Jin Sung YANG ; Yong Soon WON ; Keun HER ; Hong Cheul OH ; Hwa Kyun SHIN
The Korean Journal of Thoracic and Cardiovascular Surgery 2010;43(2):212-216
Desmoid tumor is histologically benign, but this tumor is clinically considered to be malignant. Surgical resection is one of the most effective therapeutic options for patients with this tumor and resection is the best choice for cases of recurrence. We experienced two cases of recurrence of thoracic desmoid tumor, and the patients were repeatedly treated by surgical resection. The patients were discharged without any complications, and careful follow up has been performed periodically. Therefore, we report on these cases of recurrent desmoid tumor along with a review of the related literature.
Fibromatosis, Aggressive
;
Follow-Up Studies
;
Humans
;
Recurrence
;
Thoracic Neoplasms
6.Endovascular Repair of Acute Type B Aortic Dissection: The Early Results and Aortic Wall Changes.
Keun HER ; Yong Soon WON ; Hwa Kyun SHIN ; Jin Sung YANG ; Kang Seok BAEK
The Korean Journal of Thoracic and Cardiovascular Surgery 2010;43(6):648-654
BACKGROUND: This study assessed the early results of endovascular repair of acute type B aortic dissection and the aortic wall changes following endovascular repair. MATERIAL AND METHOD: From July 2008 to May 2009, the preoperative and follow-up computed tomography (CT) scans of 5 patients with acute type B aortic dissection were evaluated, and these patients had underwent stent graft implantation within 13 days of the onset of dissection (mean: 7 days; range: 3~13). The whole lumen (WL), true lumen (TL) and false lumen (FL) diameters were measured at the proximal (p), middle (m) and distal (d) third of the descending thoracic aorta. RESULT: The study included four men and one woman with an average age of 59.4+/-20.1 years (age range: 37~79 years). The follow-up CT was performed and evaluated at 7 days and 6 months. The primary tear was completely sealed in all the patients. No paraplegia, paresis or peripheral ischemia occurred and none of the patients died. No endoleaks developed in any of the patients during follow-up. The TL diameters increased from 20.4 to 33.5 mm in the proximal third (p/3), from 19.5 to 29.8 mm in the middle third (m/3) and from 15.2 to 23.5 mm in the distal third (d/3). The FL diameters decreased from 18.7 to 0 mm in the p/3, from 15.4 to 0 mm in the m/3 and from 21.4 to 8.7 mm in the d/3. The changes in the TL diameter were statistically significant in the middle and distal aorta, and those changes in the FL diameter were not statistically significant. There was a decrease in the WL after repair, but this was not statistically significant. In three patients, the false lumen disappeared completely on follow-up CT at 6 months. Two patients had patent false lumens and no thrombosis. CONCLUSION: The early results showed that endovascular repair was effective in treating acute type B aortic dissection, and endovascular repair promoted positive aortic wall changes.
Aorta
;
Aorta, Thoracic
;
Endoleak
;
Female
;
Follow-Up Studies
;
Humans
;
Ischemia
;
Male
;
Paraplegia
;
Paresis
;
Stents
;
Transplants
7.Hybrid Endovascular Operation for Aorto-Iliac Artery Aneurysm: A case report.
Jae Wook LEE ; Yong Soon WON ; Hwa Kyun SHIN ; Keun HER ; Dong Hyun KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2009;42(1):111-114
Aorto-iliac artery aneurysms are very rare and the natural course of this disease is not well known. However, the risk of rupture is high and the mortality rate after rupture is extremely high. Preserving the pelvic circulation is important for the treatment of aorto-iliac artery aneurysms. We report here on a case of a patient suffering with aorto-iliac artery aneurysms, and these were treated by a hybrid endovascular operation that combined an open bypass of both iliac vessels with endovascular repair.
Aneurysm
;
Aorta, Abdominal
;
Arteries
;
Chimera
;
Humans
;
Rupture
;
Stents
;
Stress, Psychological
8.Surgical Resection of Renal Cell Carcinoma Extended to the Inferior Vena Cava Using Pump Driven Veno-venous Bypass.
Han Gyu PARK ; Chang Woo CHOI ; Jae Wook LEE ; Keun HER ; Hwa Kyun SHIN ; Yong Soon WON
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(1):72-75
In a 46 year-old man who has complained of epigastric pain and dyspnea for 10 days including melena for 1 month, abdominal ultrasonography and computerized tomography revealed a large, solid mass in the right kidney and thrombus of inferior vena cava (IVC) that extended to the cavoatrial junction. Renal cell carcinoma was performed by percutaneous needle biopsy. IVC thromboembolectomy was performed using centrifugal pump driven veno-venous bypass without cardiac arrest and cardiopulmonary bypass (CPB).
Biopsy, Needle
;
Carcinoma, Renal Cell*
;
Cardiopulmonary Bypass
;
Dyspnea
;
Heart Arrest
;
Humans
;
Kidney
;
Melena
;
Middle Aged
;
Thrombosis
;
Ultrasonography
;
Vena Cava, Inferior*
9.The Comparative Study of on Pump CABG during Pulsatile (T-PLS(TM)) and Nonpulsatile (Bio-pump(TM)) Perfusion.
Young Woo PARK ; Keun HER ; Jae Ung LIM ; Hwa Kyun SHIN ; Yong Soon WON
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(5):354-358
BACKGROUND: Pulsatile pumps for extracorporeal circulation have been known to be better for tissue perfusion than non-pulsatile pumps but be detrimental to blood corpuscles. This study is intended to examine the risks and benefits of T-PLS(TM) through the comparison of clinical effects of T-PLS(TM) (pulsatile pump) and Bio-pump(TM) (non-pulsatile pump) used for coronary bypass surgery. MATERIAL AND METHOD: The comparison was made on 40 patients who had coronary bypass using T-PLS(TM) and Bio-pump(TM) (20 patients for each) from April 2003 to June 2005. All of the surgeries were operated on pump beating coronary artery bypass graft using cardiopulmonary extra-corporeal circulation. Risk factors before surgery and the condition during surgery and the results were compared. RESULT: There was no significant difference in age, gender ratio, and risk factors before surgery such as history of diabetes, hypertension, smoking, obstructive pulmonary disease, coronary infarction, and renal failure between the two groups. Surgery duration, hours of heart-lung machine operation, used shunt and grafted coronary branch were little different between the two groups. The two groups had a similar level of systolic arterial pressure, diastolic arterial pressure and mean arterial pressure, but pulse pressure was measured higher in the group with T-PLS(TM) (46+/-15 mmHg in T-PLS(TM) vs 35+/-13 mmHg in Bio-pump(TM), p<0.05). The T-PLS(TM)-operated patients tended to produce more urine volume during surgery, but the difference was not statistically significant (9.7+/-3.9 cc/min in T-PLS(TM) vs 8.9+/-3.6 cc/min in Bio-pump(TM), p=0.20). There was no significant difference in mean duration of respirator usage and 24-hour blood loss after surgery between the two groups. Plasma free Hb was measured lower in the group with T-PLS(TM) (24.5+/-21.7 mg/dL in T-PLS(TM) versus 46.8+/-23.0 mg/dL in Bio-pump(TM), p<0.05). There was no significant difference in coronary infarction, arrhythmia, renal failure and morbidity rate of cerebrovascular disease. There was a case of death after surgery (death rate of 5%) in the group tested with T-PLS(TM), but the death rate was not statistically significant. CONCLUSION: Coronary bypass was operated with T-PLS(TM) (Pulsatile flow pump) using a heart-lung machine. There was no unexpected event caused by mechanical error during surgery, and the clinical process of the surgery was the same as the surgery for which Bio-pump(TM) was used. In addition, T-PLS(TM) used surgery was found to be less detrimental to blood corpuscles than the pulsatile flow has been known to be. Authors of this study could confirm the safety of T-PLS(TM).
Arrhythmias, Cardiac
;
Arterial Pressure
;
Blood Cells
;
Blood Pressure
;
Cardiopulmonary Bypass
;
Coronary Artery Bypass
;
Extracorporeal Circulation
;
Heart-Lung Machine
;
Humans
;
Hypertension
;
Infarction
;
Lung Diseases, Obstructive
;
Mortality
;
Perfusion*
;
Plasma
;
Pulsatile Flow
;
Renal Insufficiency
;
Risk Assessment
;
Risk Factors
;
Smoke
;
Smoking
;
Transplants
;
Ventilators, Mechanical
10.A Case of Diagnosis and Management of Unruptured Rudimentary Horn Pregnancy with the Use of Laparoscopy.
Chang Sik MOON ; Yun Su HER ; Min JEONG ; Dong Hyu CHO ; Ho Myong HWANG ; Kwan Sik KIM ; Jae Kyun DOO ; So Ja JIN
Korean Journal of Obstetrics and Gynecology 2004;47(4):785-788
The incidence of pregnancy in a rudimentary uterine horn is very rare. We experienced a case of unruptured rudimentary uterine horn pregnancy in the first trimester. The patient was diagnosed by laparoscopy and removed by laparoscopic resection of the pregnant rudimentary uterine horn. We report our case with brief review of literatures.
Animals
;
Diagnosis*
;
Female
;
Horns*
;
Humans
;
Incidence
;
Laparoscopy*
;
Pregnancy Trimester, First
;
Pregnancy*

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