2.The Outcome of Percutaneous Intervention of the Superficial Femoral Artery and the Predictors of its Patency.
Sang Hak LEE ; Donghoon CHOI ; Young Guk KO ; Kihwan KWON ; Do Yun LEE ; Byung Chul CHANG ; Won Heum SHIM
Korean Circulation Journal 2003;33(7):607-613
BACKGROUND AND OBJECTIVES: Percutaneous intervention has become an established technique in the treatment of peripheral arterial obstructive disease. This study was performed to evaluate the procedural success and long-term outcome of percutaneous intervention of the superficial femoral artery (SFA), and to determine the factors that influence the long-term outcome. SUBJECTS AND MEHTODS: Eighty-eight consecutive lesions, in 76 subjects (mean age 65) with chronic lower limb ischemia and SFA obstruction, diagnosed with angiography were included in this study. The angiographic success was defined as residual stenosis <30% and the clinical success as an improvement by at least one clinical category. The clinical patency was defined as an absence of symptom recurrence and target lesion revascularization during the follow up period. The predictors of the outcome were also determined. RESULTS: Balloon angioplasty only was performed in 39 lesions and thrombolysis only in 2, whereas stenting was performed in 47 lesions. Seventy four of the 88 attempts (84%) at recanalization were angiographically successful, while 73 (83%) experienced clinical improvement. The twelve month patency was 67%. Critical ischemia (versus intermittent claudication)(relative risk 4.2, p=0.020) and renal failure (relative risk 4.1, p=0.016) were independent negative predictors of the patency. CONCLUSION: Percutaneous intervention of the SFA yielded a high procedural success rate, with an acceptable long-term outcome. Symptoms of critical ischemia and renal failure were predictive of a low long-term patency.
Angiography
;
Angioplasty
;
Angioplasty, Balloon
;
Arterial Occlusive Diseases
;
Constriction, Pathologic
;
Femoral Artery*
;
Follow-Up Studies
;
Ischemia
;
Lower Extremity
;
Outcome Assessment (Health Care)
;
Recurrence
;
Renal Insufficiency
;
Stents
3.Endovascular Repair of Aortoiliac Aneurysm Using Bifurcated Stent Grafts with Sandwich Technique for Preserving the Internal Iliac Artery.
Jung Ho KIM ; Young Guk KO ; Do Yun LEE ; Donghoon CHOI
Korean Circulation Journal 2013;43(9):628-631
In this case, we describe a case of a 76-year-old male with extensive aortoiliac aneurysms treated by endovascular aneurysm repair using the sandwich technique in order to preserve left internal iliac artery perfusion. The sandwich technique refers to the deployment of multiple paralleled stent grafts into main distal and side branches in overlapping with a single proximal stent graft. The procedure was successfully performed without complications. Post-procedural CT angiography demonstrated patent stent grafts without any endoleak. The strengths and limitations of the sandwich technique need to be investigated in large-scale, long-term clinical trials.
Aged
;
Aneurysm
;
Angiography
;
Aortic Aneurysm
;
Endoleak
;
Endovascular Procedures
;
Humans
;
Iliac Artery
;
Male
;
Perfusion
;
Stents
;
Transplants
4.Chronic Instability of the Carpometacarpal Joint of the Thumb after Trauma: A Report of 3 Cases.
Journal of the Korean Society for Surgery of the Hand 2016;21(4):230-237
Posttraumatic instability of the carpometacarpal joint of the thumb are rarely reported. Consequently little is known about clinical and radiologic diagnosis, natural progress or treatment method. We report three cases of chronic instability of the carpometacarpal joint of the thumb treated with Eaton and Littler's ligament reconstruction. Satisfactory thumb functions were restored without arthritic change or recurrent subluxation.
Carpometacarpal Joints*
;
Diagnosis
;
Ligaments
;
Methods
;
Thumb*
5.SFA Intervention: Intraluminal or Subintimal?
Korean Circulation Journal 2018;48(8):685-691
Subintimal angioplasty (SA) is an endovascular technique to recanalize an occluded arterial segment through an extraluminal channel between the intima and media. Since its introduction in 1989, the technical success rate has improved with the accumulation of procedural experience and the development of retrograde approaches and re-entry devices. To date, no randomized trial has compared SA with intraluminal angioplasty (IA) for chronic total occlusion (CTO) of the superficial femoral artery (SFA). Based on limited data from several registry studies, SA appears to achieve a higher technical success rate than IA, whereas mid-term primary patency rates are comparable for both endovascular wiring strategies for SFA CTO. Additional clinical data are needed to confirm that SA is as effective as IA. The optimal stenting strategy and role of drug-eluting technologies also need to be defined to improve SA outcomes.
Angioplasty
;
Endovascular Procedures
;
Femoral Artery
;
Peripheral Arterial Disease
;
Popliteal Artery
;
Stents
6.High Tibial Osteotomy
Byung Jik KIM ; Han Suk KO ; Young LIM ; Jung Guk SEO ; Suk Gyu JOO ; Jin Soo SUH ; Jae Gi SIN
The Journal of the Korean Orthopaedic Association 1994;29(2):627-633
High tibial osteotomy is a useful procedure in the treatment of early stage osteoarthritis of the knee which is confined to the medial compartment. But long term follow-up study of high tibial osteotomy has not been provided yet and its prerequisite for a successful result still remains unrevealed. Since the osteoarthritis can progress after the osteotomy, it may result in the loss of correction and recurrence of pain and require conversion to total knee replacement arthroplasty. We studied clinically and radiologically the long term result of high tibial osteotomy in 11 patients(16 knees) who had been treated at the Department of Orthopaedic surgery of Seoul Paik Hospital during the period from January, 1978 to May, 1989, and follow-up for longer than 4 years. Preoperative mean varus angle was 6.4 degrees and immediate postoperative mean valgus angle was 8.6 degrees and final mean valgus angle was 4.7 degrees. The average loss of correction angle was 3.9 degrees. At 2-year follow-up, the results of 16 knees were as follows; excellent in six knees, good in seven knees. The final results at average 7.2-year follow-up were excellent in four knees, good in six knees and one knee was converted to total knee replacement arthroplasty. The results showed deterioration of clinical results and loss of correction with time after osteotomy. However, in more than half of the cases the results were good or excellent at the final follow-up, We, therefore, conclude that high tibial osteotomy is still a useful procedure in osteoarthritis of the knee if performed with a precise surgical technique and an adequate overcorrection more than 10 degrees.
Arthroplasty
;
Arthroplasty, Replacement, Knee
;
Follow-Up Studies
;
Knee
;
Osteoarthritis
;
Osteotomy
;
Recurrence
;
Seoul
7.SFA Intervention: Intraluminal or Subintimal?
Korean Circulation Journal 2018;48(8):685-691
Subintimal angioplasty (SA) is an endovascular technique to recanalize an occluded arterial segment through an extraluminal channel between the intima and media. Since its introduction in 1989, the technical success rate has improved with the accumulation of procedural experience and the development of retrograde approaches and re-entry devices. To date, no randomized trial has compared SA with intraluminal angioplasty (IA) for chronic total occlusion (CTO) of the superficial femoral artery (SFA). Based on limited data from several registry studies, SA appears to achieve a higher technical success rate than IA, whereas mid-term primary patency rates are comparable for both endovascular wiring strategies for SFA CTO. Additional clinical data are needed to confirm that SA is as effective as IA. The optimal stenting strategy and role of drug-eluting technologies also need to be defined to improve SA outcomes.
8.A Case of Hydrogen Peroxidese Induced Proctitis..
Sang Gil LEE ; Young Guk KO ; Young Woong WHANG ; Won Ho KIM
Journal of the Korean Society of Coloproctology 1997;13(3):541-546
Hydrogen peroxide is commonly used for cleansing superficial wounds, because of its antimicrobial action attributed to oxidizing capacity. The release of oxygen doping oxidation results in effervescence, which promotes a weak mechanical means of removing tissue debris. In the past, hydrogen peroxide was used for the management of meconium ileum and for fecal impaction because liberated oxygen tend to break up impaction and initiate peristaltic reflex. However, the stronger solution has a caustic action. The potential dangers of hydrogen peroxide enema were not so well known until 1950s when Pumphery recognized deleterious effects from such enema. During 1980s, hydrogen peroxide was used for disinfection of endoscope and several authors reported peroxide-induced colitis. We report a case of hydrogen peroxide induced chemical colitis in a 47-year-old man, who complained bloody stools and tenesmus after introducing hydrogen peroxide soaked gauss into the rectum to relieve pruritus am. Colonoscopy demonstrated diffuse erythema, edema and friability of rectal mucosa upto 6-7 cm from anal verge. The proximal margin of the lesion was well demarcated from normal appearing mucosa. Mucosal biopsy revealed histologic findings compatible with ischemic changes. His symptoms improved rapidly with conservative treatment.
Biopsy
;
Colitis
;
Colonoscopy
;
Disinfection
;
Edema
;
Endoscopes
;
Enema
;
Erythema
;
Fecal Impaction
;
Humans
;
Hydrogen Peroxide
;
Hydrogen*
;
Ileum
;
Meconium
;
Middle Aged
;
Mucous Membrane
;
Oxygen
;
Peroxides*
;
Proctitis*
;
Pruritus
;
Rectum
;
Reflex
;
Wounds and Injuries
9.Favorable Outcome of Endovascular Stent-Graft Implantation for Stanford Type B Aortic Dissection.
Woong Chol KANG ; Bo Young JOUNG ; Young Guk KO ; Bon Kwon KOO ; Donghoon CHOI ; Do Yun LEE ; Byung Chul CHANG ; Won Heum SHIM
Korean Circulation Journal 2003;33(6):457-464
BACKGROUND AND OBJECTIVES: To evaluate the feasibility and the short- and mid-term follow-up outcomes of endovascular stent-graft implantation in patients with Stanford type B aortic dissection. SUBJECTS AND METHODS: Twenty-eight patients with Stanford type B aortic dissection were evaluated. An aortogram was performed immediately after the procedure and a follow-up computed tomography (CT) scan was performed within one week, between 3 and 6 months, and annually thereafter. Clinical status was also evaluated at the same time. RESULTS: Endovascular stent-graft implantation at the target site was successful in 27 patients (96.4%). There were primary endoleaks in 6 patients and one case of procedure failure owing to migration of the stent-graft; and no procedure-related mortality. The number of patients with early complications requiring treatment was 2 (2/27, 4%). Fourteen patients experienced postimplantation syndrome (14/27, 52%). The average follow-up period was 22.1+/-17.5 months. Complete resolution or thrombosis of the false lumen was achieved in 14 patients and partial thrombosis was achieved in 10 patients. Operative treatments were required in three patients due to a progressing dissection or new dissection. There were no deaths and no instances of aneurysm or aortic rupture during the follow-up period. CONCLUSION: Endovascular stent-graft implantation for Stanford type B aortic dissection is a feasible, safe, and effective treatment modality. All patients who underwent surgery had a persisting leak. Therefore, regular evaluation of the aortic dissection and management of endoleaks were crucial for a favorable outcome in endovascular stent-graft implantation for a Stanford type B aortic dissection.
Aneurysm
;
Aortic Rupture
;
Endoleak
;
Follow-Up Studies
;
Humans
;
Mortality
;
Thrombosis
10.A Case of Abdominal Aortic Aneurysm with Short Angulated Proximal Neck Treated with the Chimney Graft Technique.
Sangeun LEE ; Young Guk KO ; Donghoon CHOI ; Do Yun LEE
Korean Circulation Journal 2013;43(6):416-421
Endovascular aneurysm repair (EVAR) using stent grafts has shown to be an effective alternative to surgical repair in treating an abdominal aortic aneurysm (AAA). EVAR is associated with shorter hospital stays, less blood loss, shorter operating times, and lower early morbidity and mortality compared to open surgical repair, although EVAR required a higher reintervention rate during a longer follow-up period. However, short or severely an angulated infrarenal proximal aortic neck is considered unsuitable for EVAR. The chimney graft technique is a modified procedure based on the deployment of a covered or bare-metal stent parallel to the main aortic endograft within the aneurysm, thereby creating a conduit that runs outside the aortic main endograft to preserve flow to the aortic branches. In this case report, we present a 78-year-old patient with an AAA with a short and severely angulated proximal neck who was successfully treated by EVAR using the chimney graft technique.
Aneurysm
;
Aortic Aneurysm, Abdominal
;
Endovascular Procedures
;
Humans
;
Length of Stay
;
Neck
;
Stents
;
Transplants