1.The clinical study of the temporal bone fractures.
Yong Ki KIM ; Sung Chan KIM ; Hyung Ook PARK ; Han Jo NA ; Bong Nam CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(1):67-74
No abstract available.
Temporal Bone*
2.A case of ulcerative colitis.
Byung Mun LEE ; Se Ook OH ; Se Chang HAM ; Hee Ju JUN ; Hee Ju PARK ; Chan Yung KIM
Journal of the Korean Pediatric Society 1992;35(9):1307-1313
No abstract available.
Colitis, Ulcerative*
;
Ulcer*
3.Ultrasound-Guided Percutaneous Thrombin Injection of Femoral Artery Pseudoaneurysms Caused by Vascular Access
Seung Yoon CHAE ; Chan PARK ; Jae Kyu KIM ; Hyoung Ook KIM ; Byung Chan LEE
Journal of the Korean Radiological Society 2021;82(3):589-599
Purpose:
To analyze the success and complication rates and factors associated with technical failure of the ultrasound (US)-guided percutaneous thrombin injection of femoral artery pseudoaneurysms caused by vascular access.
Materials and Methods:
Records of 30 patients with post-catheterization femoral artery pseudoaneurysms who had been treated with US-guided percutaneous thrombin injections in the department of radiology between March 2009 and June 2019 were retrospectively analyzed.The lesion was diagnosed based on US or contrast-enhanced CT. The characteristics of the patients and their lesions were analyzed.
Results:
The mean patient age was 67.8 years. The mean diameter of the pseudoaneurysmal sac was 20.88 mm (5–40 mm). Twenty patients (66.6%) obtained complete thrombosis after the primary injection, while 10 patients (33.3%) obtained partial thrombosis. The number of patients with a low platelet count (< 130 k/µL) was significantly higher in the partial thrombosis group than in the complete thrombosis group (p = 0.02). No substantial procedure-related complications were found in any patient.
Conclusion
The US-guided percutaneous thrombin injection is considered an initial treatment option for pseudoaneurysms caused by vascular access because of its safety and efficacy.
4.Ultrasound-Guided Percutaneous Thrombin Injection of Femoral Artery Pseudoaneurysms Caused by Vascular Access
Seung Yoon CHAE ; Chan PARK ; Jae Kyu KIM ; Hyoung Ook KIM ; Byung Chan LEE
Journal of the Korean Radiological Society 2021;82(3):589-599
Purpose:
To analyze the success and complication rates and factors associated with technical failure of the ultrasound (US)-guided percutaneous thrombin injection of femoral artery pseudoaneurysms caused by vascular access.
Materials and Methods:
Records of 30 patients with post-catheterization femoral artery pseudoaneurysms who had been treated with US-guided percutaneous thrombin injections in the department of radiology between March 2009 and June 2019 were retrospectively analyzed.The lesion was diagnosed based on US or contrast-enhanced CT. The characteristics of the patients and their lesions were analyzed.
Results:
The mean patient age was 67.8 years. The mean diameter of the pseudoaneurysmal sac was 20.88 mm (5–40 mm). Twenty patients (66.6%) obtained complete thrombosis after the primary injection, while 10 patients (33.3%) obtained partial thrombosis. The number of patients with a low platelet count (< 130 k/µL) was significantly higher in the partial thrombosis group than in the complete thrombosis group (p = 0.02). No substantial procedure-related complications were found in any patient.
Conclusion
The US-guided percutaneous thrombin injection is considered an initial treatment option for pseudoaneurysms caused by vascular access because of its safety and efficacy.
5.Isolated Extramedullary Relapse of Acute Lymphoblastic Leukemia Presenting as an Paraspinal Mass.
Ji Young KIM ; Hee Ra KIM ; Chan Ook WOO ; Jung Hwa LEE ; Un Yong CHUNG ; Kwang Chul LEE
Korean Journal of Pediatric Hematology-Oncology 2004;11(1):68-73
Despite improvements in therapy, cases in which relapse occurs are still common in children with acute lymphoblastic leukemia (ALL). Most relapses occur in the bone marrow, and extramedullary relapse is most commonly in the central nerve system. Soft tissue mass lesion or spinal cord involvement is extremely unusual in ALL relapse. We experienced a 13-year-old boy who presented with extremity weakness and pain. He was diagnosed with ALL 4 years ago and achieved complete remission after systemic chemotherapy. Imaging study revealed a paraspinal mass which was invading the S1-2 vertebral body. Histopathologic examination revealed infiltrates composed of immature lymphoblasts with morphology identical with that of initially diagnosed bone marrow aspiration. Studies on bone marrow were negative for disease at this time. He was treated with irradiation and intrathecal chemotherapy, in addition to systemic chemotherapy. The mass has nearly disappeared, and he is planned for allogeneic bone marrow transplantation.
Adolescent
;
Bone Marrow
;
Bone Marrow Transplantation
;
Child
;
Drug Therapy
;
Extremities
;
Humans
;
Male
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma*
;
Recurrence*
;
Spinal Cord
6.Endovascular Aneurysm Repair for Abdominal Aortic Aneurysm: A Comprehensive Review
Hyoung Ook KIM ; Nam Yeol YIM ; Jae Kyu KIM ; Yang Jun KANG ; Byung Chan LEE
Korean Journal of Radiology 2019;20(8):1247-1265
Abdominal aortic aneurysm (AAA) can be defined as an abnormal, progressive dilatation of the abdominal aorta, carrying a substantial risk for fatal aneurysmal rupture. Endovascular aneurysmal repair (EVAR) for AAA is a minimally invasive endovascular procedure that involves the placement of a bifurcated or tubular stent-graft over the AAA to exclude the aneurysm from arterial circulation. In contrast to open surgical repair, EVAR only requires a stab incision, shorter procedure time, and early recovery. Although EVAR seems to be an attractive solution with many advantages for AAA repair, there are detailed requirements and many important aspects should be understood before the procedure. In this comprehensive review, fundamental information regarding AAA and EVAR is presented.
Aneurysm
;
Aorta, Abdominal
;
Aortic Aneurysm, Abdominal
;
Dilatation
;
Endovascular Procedures
;
Rupture
7.Occlusal and Periodontal Status of Teeth with Non-carious Cervical lesions.
Min Ook SON ; Sung Chan SEO ; Dong Keun JEONG ; Eun Suk LEE ; Hyung Seop KIM
The Journal of the Korean Academy of Periodontology 2004;34(3):647-657
A non-carious cervical lesion(NCCL) is the loss of tooth structure at the cementoenamel junction level that is unrelated to dental caries. This study was to evaluate the occlusal and periodontal status of teeth with non-carious cervical lesions. We evaluated 105 teeth with non-carious cervical lesions in 35 subjects aged 38-75 years and characterized them based on the shape and dimension, plaque retention, bleeding on probing(BOP), probing pocket depth(PPD), occlusal status, brushing type, hypersensitivity and wear facet. The results of this study were as follows 1. No significant association was observed between cervical lesions and occlusal contact in lateral excursions. 2. No significant difference occurred in plaque retention, PPD, BOP between teeth with and without cervical lesions. 3. Test teeth had a significantly higher percentage of hypersensitivity and occlusal wear facet than teeth without cervical lesions. 4. Wedge shaped lesions had a significantly higher percentage of plaque than saucer shaped lesions. 5. Teeth with plaque were found to have significantly deeper PPD than teeth without plaque retention in cervical regions. 6. Teeth with occlusal contacts were found to have significantly deeper PPD than teeth without occlusal contacts. 7. No significant association was observed between cervical lesions and PPD independent of plaque retention and occlusal contacts Although more knowledge is necessary, our results suggest that occlusal contact and bacterial plaque may influence on periodontal tissue, but NCCL is not directly associated with periodontal health
Dental Caries
;
Hemorrhage
;
Hypersensitivity
;
Tooth Attrition
;
Tooth Cervix
;
Tooth*
8.A Case of Hypotrichosis Simplex of the Scalp.
Chang Ook PARK ; Se Woong OH ; Won Soo LEE ; Soo Chan KIM
Korean Journal of Dermatology 2006;44(2):212-215
We report a sporadic case of hypotrichosis simplex of the scalp, a rare genotrichosis, characterized by sparse or absent scalp hair with no structural defect of the hair shaft, in the absence of other ectodermal or systemic abnormalities. A 9-year-old girl had normal-looking hair at birth but subsequently lost the hair on her scalp after she turned 3 years of age. However, her eyebrows and eyelashes remained normal. Skin, nails and teeth were also normal except for malocclusion. No other family member had a similar hair defect. Hair shaft examination did not reveal any structural abnormalities. Microscopic examination of a scalp biopsy specimen showed a reduced number of hair follicles.
Biopsy
;
Child
;
Congenital, Hereditary, and Neonatal Diseases and Abnormalities
;
Ectoderm
;
Eyebrows
;
Eyelashes
;
Female
;
Hair
;
Hair Follicle
;
Humans
;
Hypotrichosis*
;
Malocclusion
;
Parturition
;
Scalp*
;
Skin
;
Tooth
9.A Case of Acrokeratoelastoidosis.
Chang Ook PARK ; Junsu PARK ; You Chan KIM ; Ju Hee LEE
Korean Journal of Dermatology 2004;42(12):1574-1577
Acrokeratoelastoidosis (AKE) is a rare skin disorder initially described by Costa, which is inherited by autosomal dominant, but also may be sporadic. Clinically, it consists of small, firm papules with occasional keratosis or umbilication, characteristically along the margins of hands and feet. Histopathologically, it shows hyperkeratosis, acanthosis in the epidermis and fragmentation and rarefaction of elastic fibers-elastorrhexis-in the dermis. A 32-year-old man presented with multiple papules along the border of the hands and feet, and from histopathology, AKE was diagnosed. Herein we report a case of acrokeratoelastoidosis and review the clinical and histopathologic features, etiology, differential diagnosis and treatment.
Adult
;
Dermis
;
Diagnosis, Differential
;
Epidermis
;
Foot
;
Hand
;
Humans
;
Keratosis
;
Skin
10.Drug-Eluting Bead Transarterial Chemoembolization Versus Radiofrequency Ablation as an Initial Treatment of Single Small (≤ 3 cm) Hepatocellular Carcinoma
Somin LEE ; Yong Yeon JEONG ; Byung Chan LEE ; Sang Soo SHIN ; Suk Hee HEO ; Hyoung Ook KIM ; Chan PARK ; Won Gi JEONG
Journal of Korean Medical Science 2023;38(42):e362-
Background:
In this study, we aimed to compare the long-term therapeutic outcomes of drug-eluting bead transarterial chemoembolization (DEB-TACE) with those of radiofrequency ablation (RFA) for the initial treatment of a single small (≤ 3 cm) hepatocellular carcinoma (HCC).
Methods:
From January 2010 to December 2021, 259 consecutive patients who underwent DEB-TACE (67 patients) or RFA (192 patients) as a first-line treatment for a single small HCC were enrolled in this retrospective study. The therapeutic outcomes, including cumulative intrahepatic local tumor progression (LTP), progression-free survival (PFS), and longterm overall survival (OS) rates, were compared between the two groups before and after propensity score (PS) matching. Multivariate Cox proportional hazard models were used to evaluate the prognostic factors and differences in OS and PFS between the two groups for all 92 patients after PS matching.
Results:
After PS matching, the 1-, 2-, 3-, and 5-year LTP rates were lower in the RFA group than those in the DEB-TACE group (P < 0.001), and the 1-, 2-, 3-, and 5-year PFS rates in the RFA group were higher than those in the DEB-TACE group (P = 0.007). However, the 1-, 2-, 3-, and 5-year OS rates were not significantly different between the RFA and DEB-TACE groups (P = 0.584).Moreover, the OS was not significantly different between the RFA and DEB-TACE groups in the univariate and multivariate analyses, with a hazard ratio (HR) of 0.81. The PFS was significantly higher in the RFA group than that in the DEB-TACE group in the univariate analyses, with a HR of 0.44 (P = 0.009). Multivariate Cox regression analysis showed that albumin (P = 0.019) was an independent prognostic factor for OS. Additionally, the major complication rates were not significantly different between the DEB-TACE and RFA groups (P = 1.000).
Conclusion
The LTP and PFS rates of RFA were superior to those of DEB-TACE in the initial treatment of single small HCC after PS matching. However, the OS rates were not significantly different between RFA and DEB-TACE. Therefore, DEB-TACE may be considered an efficient substitute for RFA in some patients with a single small HCC who are ineligible for RFA.