1.A Case of Proliferating Trichilemmal Tumor.
Soo Il CHUN ; Hyung Joo KIM ; Won Hyoung KANG ; Tai Seung KIM
Korean Journal of Dermatology 1985;23(4):539-542
Proliferating trichilernmal tumor is a rare benign solitary tumor that may be histopathologically misinterpreted as squarnous cell carcinoma. It affects frequently the scalp of elderly women. We present herein a case of proliferating trichilemmal tumor in an 87-year-old male who had had a slowly growing tumor on the scalp for 30 years.
Aged
;
Aged, 80 and over
;
Female
;
Humans
;
Male
;
Scalp
2.Lumbar Disc Degeneration and Segmental Instability: A Comparison of Magnetic Resonance Images and Plain Radiographs.
Seung Rim PARK ; Hyoung Soo KIM ; Joon Soon KANG ; Woo Hyeong LEE ; Joo Hyung LEE ; Tong Joo LEE
Journal of Korean Society of Spine Surgery 1997;4(2):281-290
SUMMARY OF LITERATURE REVIEW: Many authors haute described the association between lumbar disc degeneration and segmental instability but it has not been delineated in detail. OBJECTIVES: To compare the MRI assessment of disc degeneration with the conventional plain X-ray evaluation of the intervertebral disc, in order to study lumbar segmental instability. MATERIALS AND METHODS: In 75 patients with low back pain and/or sciatica, we analyzed disc space height, angular displacement, and horizontal displacement on plain radiographs of the lumbar spine. These parameters were compared with the grade of disc degeneration as evaluated by magnetic resonance Imaging. STUDY DESIGN: We analyzed the association between grade of disc degeneration as evaluated by magnetic resonance imaging assessment and segmental instability as evaluated by plain radiographs of the lumbar spine. RESULTS: Disc space height was decreased In proportion to the grade of disc degeneration. Angular displacement was increased according to the grade of disc degeneration, but significantly less with severe degeneration, accompanied by a tendency to stabilization of the motion segment. Horizontal displacement was not correlated with the grade of disc degeneration CONCLUSIONS: The incidence of lumbar segmental instability increased in proportion to the grade of disc degeneration but significantly decreased with severe disc degeneration.
Humans
;
Incidence
;
Intervertebral Disc
;
Intervertebral Disc Degeneration*
;
Low Back Pain
;
Magnetic Resonance Imaging
;
Sciatica
;
Spine
3.Lumbar Spinal Stenosis and Diabetes Mellitus: Comparison of Surgical Outcome.
Seung Rim PARK ; Hyoung Soo KIM ; Joon Soon KANG ; Woo Hyeong LEE ; Joo Hyung LEE ; Seung Jun PARK
Journal of Korean Society of Spine Surgery 1998;5(1):9-17
STUDY DESIGN: This retrograde study was designed to compare the clinical features and postoperative clinical results of diabetic and non-diabetic patients who had undergone decompression and postero-lateral fusion with instrumentation. OBJECTIVE: To determine whether diabetes affected the outcome of surgery and to identify the clinical features associated with a poor outcome. SUMMARY OF BACKGROUND DATA: Symptoms of peripheral angiopathy and neuropathy as long-term complications of diabetes closely mimic those of lumbar stenosis and there may be a risk of inappropriate surgical intervention in patients with both diabetes and spinal stenosis. In the presence of diabetes, a poor surgical outcome might be expected. But only a few literatures have been documented. MATERIALS AND METHODS: We reviewed 21 diabetic(mean age 58.2 years) and 21 non-diabetic patients(mean age 61.3 years) who had undergone decompression and postero-lateral fusion with instrumentation for lumbar spinal stenosis at a mean of 32 months after operation by reviewing the medical records such as clinical symptoms and results of objective examination(including electrophysiologic study). RESULTS: The preoperative symptoms were similar in the two groups except that abrupt onset of symptoms, the presence of night pain and the absence of any posture-related pain relief were recorded only by diabetic patients. The level of decompression, co-morbidity rate, and intra-operative blood loss were similar in two groups, too. Nerve-conduction velocity was lowered in 66.7% of the diabetic and in 25% of the non-diabetic patients. Polyneuropathy, which are highly suspicious of diabetic neuropathy was detected 46.7% in only diabetic group. The long-term result was excellent or good for thirteen(61.9%) of the twenty-one diabetic patients and for nineteen(90.5%) of the twenty-one non-diabetic patients. CONCLUSIONS: Thus diabetic patients who haute spinal stenosis cannot be expected to have same clinical outcome as non-diabetic patients, which is consistent with the general belief of impression. Therefore, the selection of patient according to clinical and electrophysiologic findings would be the most important factor in determining the rate of success of surgical treatment.
Constriction, Pathologic
;
Decompression
;
Diabetes Mellitus*
;
Diabetic Neuropathies
;
Humans
;
Medical Records
;
Peripheral Vascular Diseases
;
Polyneuropathies
;
Spinal Stenosis*
4.Ossifications of the Ligamentum Flavum and the Posterior Longitudinal Ligament of the Lumbar Spine.
Seung Rim PARK ; Hyoung Soo KIM ; Joon Soon KANG ; Woo Hyeong LEE ; Joo Hyung LEE ; Ju Sik PARK
Journal of Korean Society of Spine Surgery 1997;4(2):350-356
Ossifications of the ligamentum flavum(OLF) and the posterior longitudinal ligament(OPLL) are uncommon clinical entities as a cause of the progressive compression myelopathy or radiculopathy. Although there are considerable literatures concerning OPLL or OLF in cervical and thoracic spine, there are only a few references about OPLL or OLF in the lumbar spine. OLF and OPLL have been reported that they may lead to severe complication only with a minor trauma or even without trauma, such as paraplegia. The authors have experienced 2 cases of OLF accompanied by OPLL In the lumbar spine, who were treated with decompressive laminectomy and excision of ossified ligaments. For its rarity of OLF and OPLL in the lumbar region, we report here with review of literature.
Laminectomy
;
Ligaments
;
Ligamentum Flavum*
;
Longitudinal Ligaments*
;
Lumbosacral Region
;
Paraplegia
;
Radiculopathy
;
Spinal Cord Diseases
;
Spine*
5.Nasal tip plasty using three-dimensional printed polycaprolactone (Smart Ball®)
Joo Hyoung KIM ; Geon Woo KIM ; Won Kyung KANG
Yeungnam University Journal of Medicine 2020;37(1):32-39
Background:
Rhinoplasty is one of the most commonly performed cosmetic surgery procedures. Most Asians desire elevation of their relatively flat nasal dorsum and tip to make them appear more prominent. This study introduces a simple method of nasal tip plasty using three-dimensional (3D)-printed polycaprolactone (PCL) (Smart Ball®), which provides the required length and volume for this purpose and enables the creation of a nasal tip of the desired shape in a safe and simple manner.
Methods:
Between September 2014 and May 2017, 22 patients participated in a survey to assess postoperative satisfaction levels. Additionally, three plastic surgeons compared patients’ pre- and 1-year postoperative photographs to evaluate the results. All patients underwent 2- to 4-year postoperative follow-up.
Results:
Levels of subjective satisfaction among patients were 3.59, 3.50, 3.82, 3.73, 3.55, and 3.82 for each of the 6 categories evaluated, with a mean of 3.67/4 points, indicating high satisfaction levels. The mean plastic surgeon-reported score for the 22 patients was 4.47/5 points, which also indicates highly successful outcomes. Postoperative nasal tip rotation and tip projection were ideal in most patients.
Conclusion
Our novel method using 3D-printed PCL (Smart Ball®) provides the optimal length and volume required for nasal tip plasty and enables the creation of a nasal tip of the desired shape, in a safe and simple manner. An advantage of our method is that it retains the original nasal structure in contrast to structural changes observed with the use of conventional methods.
6.Diagnostic accuracy of 22/25-gauge core needle in endoscopic ultrasound-guided sampling: systematic review and meta-analysis.
Hyoung Chul OH ; Hyun KANG ; Jae Young LEE ; Geun Joo CHOI ; Jung Sik CHOI
The Korean Journal of Internal Medicine 2016;31(6):1073-1083
BACKGROUND/AIMS: To compare the diagnostic accuracy of endoscopic ultrasound-guided core needle aspiration with that of standard fine-needle aspiration by systematic review and meta-analysis. METHODS: Studies using 22/25-gauge core needles, irrespective of comparison with standard fine needles, were comprehensively reviewed. Pooled sensitivity, specificity, diagnostic odds ratio (DOR), and summary receiver operating characteristic curves for the diagnosis of malignancy were used to estimate the overall diagnostic efficiency. RESULTS: The pooled sensitivity, specificity, and DOR of the core needle for the diagnosis of malignancy were 0.88 (95% confidence interval [CI], 0.84 to 0.90), 0.99 (95% CI, 0.96 to 1), and 167.37 (95% CI, 65.77 to 425.91), respectively. The pooled sensitivity, specificity, and DOR of the standard needle were 0.84 (95% CI, 0.79 to 0.88), 1 (95% CI, 0.97 to 1), and 130.14 (95% CI, 34.00 to 495.35), respectively. The area under the curve of core and standard needle in the diagnosis of malignancy was 0.974 and 0.955, respectively. The core and standard needle were comparable in terms of pancreatic malignancy diagnosis. There was no significant difference in procurement of optimal histologic cores between core and standard needles (risk ratio [RR], 0.545; 95% CI, 0.187 to 1.589). The number of needle passes for diagnosis was significantly lower with the core needle (standardized mean difference, -0.72; 95% CI, -1.02 to -0.41). There were no significant differences in overall complications (RR, 1.26; 95% CI, 0.34 to 4.62) and technical failure (RR, 5.07; 95% CI, 0.68 to 37.64). CONCLUSIONS: Core and standard needles were comparable in terms of diagnostic accuracy, technical performance, and safety profile.
Biopsy, Fine-Needle
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Diagnosis
;
Needles*
;
Odds Ratio
;
ROC Curve
;
Sensitivity and Specificity
7.Relationship between the facial bone thickness and gingival biotype of the anterior maxilla in Koreans.
Ji Hun PARK ; Yeun Kang KIM ; Hyoung Min KIM ; Ji Young JOO ; Ju Youn LEE
Journal of Dental Rehabilitation and Applied Science 2015;31(3):169-177
PURPOSE: The objects of this study were to examine the thickness of labial plate of anterior maxillary teeth and the gingival biotype in Koreans and to evaluate whether there is a correlation between the gingival biotype and the thickness of labial plate. MATERIALS AND METHODS: This study was performed on 335 teeth of 57 subjects at the Pusan National University Dental Hospital. Cone Beam Computed Tomography (CBCT) was used to measure the thickness of labial plate at 4 mm, 6 mm, 8 mm from the cementoenamel junction and the gingival biotype was determined by the visibility of periodontal probe. RESULTS: Thin facial bone less than 1 mm was observed in 87% at 4 mm, 88% at 6 mm and 90% at 8 mm. In 21% of total objects, thin gingival biotype was observed. There is no correlation between the thickness of labial plate and gingival biotype. CONCLUSION: Additional thorough radiographic examination such as CBCT was mandatory for aesthetic dental implant in the anterior dentition besides clinical oral examination.
Asian Continental Ancestry Group
;
Busan
;
Cone-Beam Computed Tomography
;
Dental Implants
;
Dentition
;
Diagnosis, Oral
;
Facial Bones*
;
Humans
;
Maxilla*
;
Periodontium
;
Tooth
;
Tooth Cervix
8.Reversal of Early Central Retinal Vein Occlusion by Alleviating Optic Nerve Edema with an Intravitreal Dexamethasone Implant.
Young Joo CHO ; Dong Hyun LEE ; Hae Min KANG ; Min KIM ; Hyoung Jun KOH
Korean Journal of Ophthalmology 2014;28(2):192-193
This case describes the reversal of early central retinal vein occlusion (CRVO) with disc swelling after intravitreal dexamethasone implant (Ozurdex) injection. A 44-year-old female presented with sudden-onset intermittent blurred vision in her left eye. Fundus examination revealed multiple retinal hemorrhages without macular edema (ME). Two weeks later, an increased number of retinal hemorrhages with severe disc swelling were noted with still no sign of ME. An intravitreal dexamethasone implant was injected. Five days later, there were improvements in disc swelling and retinal hemorrhage. One month later, her subjective visual symptoms were completely improved, and fundus examination revealed marked improvement along with almost complete resolution of disc swelling. Intravitreal dexamethasone implant injection may potentially change the natural course of CRVO progression and its various subsequent complications.
Adult
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Dexamethasone/*administration & dosage
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Drug Implants
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Female
;
Glucocorticoids/*administration & dosage
;
Humans
;
Intravitreal Injections
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Papilledema/*drug therapy
;
Retinal Vein/*drug effects
;
Retinal Vein Occlusion/*drug therapy
;
Treatment Outcome
9.A Preliminary Survey of Emergency Medicine in 12 Asian Countries.
Jae Myung CHUNG ; Soon Joo WANG ; Moo Up AHN ; Jae Hyoung PARK ; Ki Chul YOO ; Joon Suk PARK ; Jae Gu KANG ; Jeffrey L ARNOLD
Journal of the Korean Society of Emergency Medicine 1999;10(4):549-559
BACKGROUND: To assess the current level of development of emergency medicine (EM) systems in Asia. METHOD: Survey of EM professionals from 12 Asian countries during a 90-day period from August to November 1998. 12 EM professionals from 12 Asian countries completed the survey. All participants were physicians. 7 participants (58%) gave presentations at an international EM conference during the study period. Respondents completed a 103 question questionnaire about the status of EM specialty, academic, patient care, information and management systems and the factors influencing the future of EM in their countries. RESULTS: 92% of respondents stated that their countries have hospital-based emergency departments (ED). More than 80% of respondents reported that their countries have EMS systems and ED systems for trauma care and patient transfer. More than 70% stated that their countries have national EM organizations, EM research, national EMS activation phone numbers, ED systems for pediatric emergency care, emergency physician (EP) training in ACLS and ATLS and peer review. More than 60% reported official recognition of EM as an independent specialty status, ED triage systems and systems for customer service. More than 50% reported EM residency training programs, EM journals and EP ability to perform rapid sequence intubation (RSI). 50% reported EP ability to perform thrombolysis for acute MI and 33% reported EP ultrasonography. 92% felt that a lack of funding posed a moderate or great obstacle to the future development of EM in their countries. CONCLUSION: Many essential systems of EM now exist throughout Asia. In the systems of administration and emergency medical information in many countries, there are some parts to be developed further.
Asia
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Asian Continental Ancestry Group*
;
Surveys and Questionnaires
;
Education
;
Emergencies*
;
Emergency Medical Services
;
Emergency Medicine*
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Emergency Service, Hospital
;
Financial Management
;
Humans
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Internship and Residency
;
Intubation
;
Patient Care
;
Patient Transfer
;
Peer Review
;
Triage
;
Ultrasonography
10.Serum Adiponectin Levels and Insulin Resistance in Obese Children.
Hee Sun LEE ; Jin LEE ; Min Joo KANG ; Byung Min CHOI ; Kee Hyoung LEE
Korean Journal of Pediatrics 2005;48(5):481-487
PURPOSE: Adiponectin, adipose tissue-specific protein, has anti-inflammatory and anti-atherogenic properties. It has been found to have a negative correlation with obesity and to play a role in modulating glucose tolerance and insulin sensitivity. Serum adiponectin concentrations are decreased in adults with obesity and type 2 diabetes. We investigated the difference in adiponectin levels between obese and non-obese children, and evaluated the relationship of serum adiponectin with body mass index(BMI), serum fasting insulin, lipid profiles and homeostasis model assessment(HOMA) in children. METHODS: We measured serum adiponectin levels by radioimmunoassay in 113 children(82 obese children and 31 non-obese controls) from 8 to 15 years of age, and also checked BMI, fasting serum glucose, insulin and lipid profiles. Fasting and postprandial serum adiponectin concentrations were compared by oral glucose tolerance tests in 27 obese children. The correlations of adiponectin with BMI, insulin, low density lipoprotein(LDL)-cholesterol and HOMA were analyzed by Pearson's correlation. RESULTS: The serum adiponectin levels were significantly lower in the obese group(19.7 mg/mL) than in the non-obese group(27.5 mg/mL)(P< 0.01). Serum adiponectin concentrations were negatively correlated with BMI(r=-0.39, P< 0.01), serum insulin(r=-0.28, P< 0.01), LDL-C(r=-0.20, P< 0.01) and HOMA(r=-0.22, P< 0.01). At oral glucose tolerance tests in obese children, postprandial 2 hours adiponectin level(19.8 mg/mL) was decreased compared to fasting level(25.8 mg/mL)(P< 0.01). CONCLUSION: Serum adiponectin concentrations were inversely related to adiposity and insulin resistance in children. We suggest the serum adiponectin level could be used as an early marker of insulin resistance in obese children.
Adiponectin*
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Adiposity
;
Adult
;
Blood Glucose
;
Child*
;
Fasting
;
Glucose
;
Glucose Tolerance Test
;
Homeostasis
;
Humans
;
Insulin Resistance*
;
Insulin*
;
Obesity
;
Radioimmunoassay