1.Endovascular Repair of Thoracic Aortic Aneurysm Using a Custom-made Fenestrated Stent Graft to Preserve the Left Subclavian Artery.
Soonchunhyang Medical Science 2012;18(2):163-166
Endovascular repair for thoracic aortic aneurysm is widespread and recently, the advent of new device-fenestrated stent graft enables endovascular repair for aortic aneurysm to be close or involved in the orifice of left subclavian artery. However, fenestrated stent graft is not available in Korea. We report herein a case in which endovascular repair for thoracic aortic aneurysm closed to the orifice of left subclavian artery using custom made fenestrated stent graft. The aneurysm was successfully repaired by a total endovascular approach without open surgical repair.
Aneurysm
;
Aortic Aneurysm
;
Aortic Aneurysm, Thoracic
;
Korea
;
Stents
;
Subclavian Artery
;
Transplants
2.Spontaneous Intramural Full-Length Dissection of Esophagus Treated with Surgical Intervention: Multidetector CT Diagnosis with Multiplanar Reformations and Virtual Endoscopic Display.
Eun Kyung KHIL ; Heon LEE ; Keun HER
Korean Journal of Radiology 2014;15(1):173-177
Intramural esophageal dissection (IED) is an uncommon disorder characterized by separation of the mucosal and submucosal layers of the esophagus. Iatrogenic intervention is the most common cause of IED, but spontaneous dissection is rare. We report an unusually complicated case of spontaneous IED that involved the full-length of the esophagus that necessitated surgical intervention due to infection of the false lumen. In this case, chest computed tomography successfully established the diagnosis and aided in pre-operative evaluation with the use of various image post-processing techniques.
Esophageal Diseases/*radiography/*surgery
;
Esophagoscopy/methods
;
Esophagus/injuries/radiography
;
Humans
;
Male
;
Middle Aged
;
*Multidetector Computed Tomography
;
Rare Diseases/*radiography/*surgery
;
Rupture, Spontaneous/radiography/surgery
3.Tracheal Laceration Due to Thyroid Cartilage Fracture: One Case Report.
Seock Yeol LEE ; Keun HER ; Man Bok LEE ; Kihl Rho LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(11):919-921
A 50-year-old male visited the emergency room due to the cervical edema caused by a traffic accident. At the cervial CT, diagnosis was confirmed as extensive cervical subcutaneous emphysema secondary to tracheal laceration as a thyroid cartilage fracture. The patient showed loss of symptom after conservative treatment. Thyroid cartilage fracture is rare and tracheal laceration as a result of thyroid cartilage fracture has never been reported in the literatures. Thus we herein report this one case.
Accidents, Traffic
;
Diagnosis
;
Edema
;
Emergency Service, Hospital
;
Emphysema
;
Humans
;
Lacerations*
;
Male
;
Middle Aged
;
Subcutaneous Emphysema
;
Thyroid Cartilage*
;
Thyroid Gland*
4.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
5.Diagnosis and Endovascular Treatment of May-Thurner Syndrome.
Keun HER ; Jae Wook LEE ; Hwa Kyun SHIN ; Yong Soon WON
The Korean Journal of Thoracic and Cardiovascular Surgery 2004;37(11):911-917
BACKGROUND: There are limited number of reports on May-Thurner syndrome (Iliac vein compression syndrome) in Korea, We analysed the clinical features, diagnostic modalities and endovascular treatment of May-Thurner syndrome. MATERIAL AND METHOD: We reviewed 12 cases of May-Thurner syndrome between March 2001 and June 2003. Mean age was 57.6+/-2 years. We were used in venography, color doppler and computed tomographic angiography as diagnostic modalities and in thrombolysis, thrombectomy, angioplasty and stent insertion as endovascular treatment. RESULT: Clinical features showed edema of lower extremities in 4 patients, pain of lower extremities in 1 patient, edema with pain in 5 patients, and all in 1 patient. In one patient, he did not have any pain and any edema of lower extremities but was diagnosed as May-Thurner syndrome using venography due to varicose veins on lower extremities. Diagnostic modalities included venography, computed tomographic angiography in all patients with clinical presentation except in one patient and color doppler was only performed only in 4 patients. Four kinds of endovascular treatment were performed for May-Thurner syndrome, angioplasty in 11 patients, stent insertion in 10 patients, thrombectomy in 9 patients and thrombolysis for 7 patients. Nine patients were followed up and we can show good blood flow in Left iliac vein for 7 of 9 patients. CONCLUSION: It is necessary to recognize the possibility of May-Thurner syndrome in Deep vein thrombosis patients and we should use a variety of modalities to diagnose May-Thurner syndrome. Finally, endovascular treatment is a safe and effective therapy for May-Thurner syndrome.
Angiography
;
Angioplasty
;
Diagnosis*
;
Edema
;
Humans
;
Iliac Vein
;
Korea
;
Lower Extremity
;
May-Thurner Syndrome*
;
Phlebography
;
Stents
;
Thrombectomy
;
Varicose Veins
;
Veins
;
Venous Thrombosis
6.Diagnosis and Endovascular Treatment of May-Thurner Syndrome.
Keun HER ; Jae Wook LEE ; Hwa Kyun SHIN ; Yong Soon WON
The Korean Journal of Thoracic and Cardiovascular Surgery 2004;37(11):911-917
BACKGROUND: There are limited number of reports on May-Thurner syndrome (Iliac vein compression syndrome) in Korea, We analysed the clinical features, diagnostic modalities and endovascular treatment of May-Thurner syndrome. MATERIAL AND METHOD: We reviewed 12 cases of May-Thurner syndrome between March 2001 and June 2003. Mean age was 57.6+/-2 years. We were used in venography, color doppler and computed tomographic angiography as diagnostic modalities and in thrombolysis, thrombectomy, angioplasty and stent insertion as endovascular treatment. RESULT: Clinical features showed edema of lower extremities in 4 patients, pain of lower extremities in 1 patient, edema with pain in 5 patients, and all in 1 patient. In one patient, he did not have any pain and any edema of lower extremities but was diagnosed as May-Thurner syndrome using venography due to varicose veins on lower extremities. Diagnostic modalities included venography, computed tomographic angiography in all patients with clinical presentation except in one patient and color doppler was only performed only in 4 patients. Four kinds of endovascular treatment were performed for May-Thurner syndrome, angioplasty in 11 patients, stent insertion in 10 patients, thrombectomy in 9 patients and thrombolysis for 7 patients. Nine patients were followed up and we can show good blood flow in Left iliac vein for 7 of 9 patients. CONCLUSION: It is necessary to recognize the possibility of May-Thurner syndrome in Deep vein thrombosis patients and we should use a variety of modalities to diagnose May-Thurner syndrome. Finally, endovascular treatment is a safe and effective therapy for May-Thurner syndrome.
Angiography
;
Angioplasty
;
Diagnosis*
;
Edema
;
Humans
;
Iliac Vein
;
Korea
;
Lower Extremity
;
May-Thurner Syndrome*
;
Phlebography
;
Stents
;
Thrombectomy
;
Varicose Veins
;
Veins
;
Venous Thrombosis
7.Extracorporeal Membrane Oxygenation Treatment of Traumatic Lung Injury: 2 Cases.
Jin Sung YANG ; Hwakyun SHIN ; Keun HER ; Yong Soon WON
Journal of the Korean Society of Traumatology 2011;24(2):155-158
Mechanical ventilation is usually the treatment of choice for severe respiratory failure associated with trauma. However, in case of severe hypoxia, mechanical ventilation may not be sufficient for gas exchange in lungs. Patients with Acute Respiratory Distress Syndrome (ARDS) undergo difficulties in oxygen and carbon dioxide exchange. Extracorporeal Membrane Oxygenation (ECMO) is the ideal therapeutic option for those patients with severe traumatic injuries. ECMO allows lungs to reserve their functions and decreases further lung injuries while increasing survival rate at the same time. We report two cases of patients with traumatic ARDS and Multiple Organ Failure including compromised heart function. The preservation of lung function was successful using ECMO therapy.
Anoxia
;
Carbon Dioxide
;
Extracorporeal Membrane Oxygenation
;
Heart
;
Humans
;
Lung
;
Lung Injury
;
Multiple Organ Failure
;
Oxygen
;
Respiration, Artificial
;
Respiratory Distress Syndrome, Adult
;
Respiratory Insufficiency
;
Survival Rate
8.Extracorporeal Membrane Oxygenation Treatment of Traumatic Lung Injury: 2 Cases.
Jin Sung YANG ; Hwakyun SHIN ; Keun HER ; Yong Soon WON
Journal of the Korean Society of Traumatology 2011;24(2):155-158
Mechanical ventilation is usually the treatment of choice for severe respiratory failure associated with trauma. However, in case of severe hypoxia, mechanical ventilation may not be sufficient for gas exchange in lungs. Patients with Acute Respiratory Distress Syndrome (ARDS) undergo difficulties in oxygen and carbon dioxide exchange. Extracorporeal Membrane Oxygenation (ECMO) is the ideal therapeutic option for those patients with severe traumatic injuries. ECMO allows lungs to reserve their functions and decreases further lung injuries while increasing survival rate at the same time. We report two cases of patients with traumatic ARDS and Multiple Organ Failure including compromised heart function. The preservation of lung function was successful using ECMO therapy.
Anoxia
;
Carbon Dioxide
;
Extracorporeal Membrane Oxygenation
;
Heart
;
Humans
;
Lung
;
Lung Injury
;
Multiple Organ Failure
;
Oxygen
;
Respiration, Artificial
;
Respiratory Distress Syndrome, Adult
;
Respiratory Insufficiency
;
Survival Rate
9.Interrlationship between Left Ventricular Mass and Diurnal Variations of Blood Pressure in Patients with Esssntial Hypertension.
Choong Keun LEE ; Gyoung Mu HER ; Gwan Eung PARK ; Chai Jung YOON ; Jong Hoon CHUNG ; Seung Ill LEE ; Kyung Sik JANG ; Soon Pyo HONG
Korean Circulation Journal 1997;27(1):13-19
BACKGROUND: In hypertensive patients, the left ventricular hypertrophy(LVH) is very important as an independent risk factor along with developing complications. The present study was attempted to assess whether LVE assessed by echocardiography is related to diurnal variations of blood pressure in patiens with essential hypertension. METHOD: After 24hr ambulatory blood pressure monitoring, echocardiographic parameters were investigated in 30 healthy normotensive subjects and 17 patients with diurnal variation of blood pressure and 19 patients without diurnal variation respectively. RESULTS: Left ventricular mass index was higher in essential hypertensive patients than normotensive subjects. In patients without nocturnal fall in systolic blood pressure, left ventricular mass tended to be higher than in patients with a nocturnal fall without statistic significance. In the hypertensive patients with nocturnal fall, there was a correlationship between LVMI and changes in systolic blood pressure, but no correlation between left ventricular mass index and changes in diastolic blood pressure. In the hypertensive patients without nocturnal fall, changes of both systolic and diastolic pressure did not affect LVMI. CONCLUSION: It is suggested strongly that left ventricular hypertrophy may occur highly in the hypertensive patients without nocturnal(diurnal) variation in blood pressure and may be associated with changes in diastolic and systolic blood pressure. But in hypertensive patient with nocurnal fall, left ventricular hypertrophy may be associated with changes in systolic blood pressure.
Blood Pressure Monitoring, Ambulatory
;
Blood Pressure*
;
Echocardiography
;
Humans
;
Hypertension*
;
Hypertrophy, Left Ventricular
;
Risk Factors
10.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