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Search Results: 1 - 10 of 43555 matches for " Yong Oock Kim "
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Outcome Analysis of Cranial Molding Therapy in Nonsynostotic Plagiocephaly
Han-Su Yoo,Dong Kyun Rah,Yong Oock Kim
Archives of Plastic Surgery , 2012, DOI: http://dx.doi.org/10.5999/aps.2012.39.4.338
Abstract: Background It is known that nonsynostotic plagiocephaly does not spontaneously improve,and the craniofacial deformities that result from it. This study was conducted to analyze theeffectiveness of helmet therapy for the nonsynostotic plagiocephaly patient, and to suggesta new treatment strategy based on this analysis.Methods A total of 108 pediatric patients who had undergone helmet therapy after beingdiagnosed with nonsynostotic plagiocephaly were included in this study. The patients wereclassified according to the initiation age of the helmet therapy, severity, and helmet wearingtime. The treatment effect was compared using cranial vault asymmetry (CVA) and the cranialvault asymmetry index (CVAI), which were obtained from diagonal measurements before andafter therapy.Results The discrepancy of CVA and CVAI of all the patients significantly decreased afterhelmet therapy. According to the initiation time of helmet therapy, the treatment effectwas best at 5 months old or less. The helmet wearing time per day was proportional to thetreatment effect up to 20 hours. In addition, the rate of the successful treatment (final CVA≤5 mm) significantly decreased when the initiation age was 9.1 months or older and thetreatment period was less than 7.83 months.Conclusions This study showed the effectiveness of the helmet therapy for nonsynostoticplagiocephaly patients. Based on analysis of this study, helmet therapy should be started at theage of 9 months or younger for 7.83 months or more, and the helmet wearing time should bemore than 20 hours a day.
Effects of Preoperative Biopsies on Recurrence in Head and Neck Skin Cancer
Ji Eun Jung,Dong Kyun Rah,Yong Oock Kim
Archives of Plastic Surgery , 2012, DOI: http://dx.doi.org/10.5999/aps.2012.39.5.518
Abstract: Background Skin cancer is the most common malignant tumor in humans. Basal cellcarcinoma (BCC) and squamous cell carcinoma (SCC) are the two most common types of skincancers. When skin cancer is clinically suspected, preoperative biopsies are recommended fora definite diagnosis. However, despite a concern over potential increased risk of metastasisassociated with mechanical manipulation, there have been few investigations into whether apreoperative biopsy affected the recurrence of BCC and SCC.Methods Primary BCC or SCC patients who underwent standard surgical excision from 1991to 2010 were reviewed and a retrospective analysis was performed. Ultimately, 45 BCC patientsand 54 SCC patients, who did not meet the exclusion criteria, were analyzed. To identifywhether a preoperative biopsy affected the recurrence of BCC and SCC, the recurrence ratesof each with and without biopsy were compared.Results Preoperative biopsy had no statistically significant effect on recurrence (BCC,P=0.8680; SCC, P=0.7520). Also, there was no statistical significance between the intervalfrom initial biopsy to first operation and recurrence (BCC, P=0.2329; SCC, P=0.7140). Eventhough there was no statistical significance, the mean interval from the biopsy to the operationamong the BCC patients who underwent preoperative biopsy was 9.2 months in those who hadrecurrence and 2.0 months in those who had no recurrence.Conclusions There was no statistically significant relationship between preoperative biopsyand recurrence of BCC and SCC. However, there was a tendency toward recurrence in patientswith a longer interval between the biopsy and the corrective operation in BCC.
Anterior Cranial Base Reconstruction with a Reverse Temporalis Muscle Flap and Calvarial Bone Graft
Seung Gee Kwon,Yong Oock Kim,Dong Kyun Rah
Archives of Plastic Surgery , 2012, DOI: http://dx.doi.org/10.5999/aps.2012.39.4.345
Abstract: Background Cranial base defects are challenging to reconstruct without serious complications.Although free tissue transfer has been used widely and efficiently, it still has the limitation ofrequiring a long operation time along with the burden of microanastomosis and donor sitemorbidity. We propose using a reverse temporalis muscle flap and calvarial bone graft as analternative option to a free flap for anterior cranial base reconstruction.Methods Between April 2009 and February 2012, cranial base reconstructions using anautologous calvarial split bone graft combined with a reverse temporalis muscle flap wereperformed in five patients. Medical records were retrospectively analyzed and postoperativecomputed tomography scans, magnetic resonance imaging, and angiography findings wereexamined to evaluate graft survival and flap viability.Results The mean follow-up period was 11.8 months and the mean operation time forreconstruction was 8.4±3.36 hours. The defects involved the anterior cranial base, includingthe orbital roof and the frontal and ethmoidal sinus. All reconstructions were successful. Viableflap vascularity and bone survival were observed. There were no serious complications exceptfor acceptable donor site depressions, which were easily corrected with minor procedures.Conclusions The reverse temporalis muscle flap could provide sufficient bulkiness to fill deadspace and sufficient vascularity to endure infection. The calvarial bone graft provides a rigidframework, which is critical for maintaining the cranial base structure. Combined anteriorcranial base reconstruction with a reverse temporalis muscle flap and calvarial bone graftcould be a viable alternative to free tissue transfer.
FE Dynamic Analysis Using Moving Support Element on Multi-Span Beams Subjected to Support Motions  [PDF]
Yong-Woo Kim, Seoung Yeal Lee
Modern Mechanical Engineering (MME) , 2015, DOI: 10.4236/mme.2015.54011
Abstract: In the present study, finite element dynamic analysis or time history analysis of two-span beams subjected to asynchronous multi-support motions is carried out by using the moving support finite element. The elemental equation of the element is based on total displacements and is derived under the concept of the quasi-static displacement decomposition. The use of moving support element shows that the element is very simple and convenient to represent continuous beam moving, deforming and vibrating simultaneously due to support motions. The comparison between the numerical results and analytical solutions indicates that the FE result agrees with the analytical solution.
Hikikomori, a Phenomenon of Social Withdrawal and Isolation in Young Adults Marked by an Anomic Response to Coping Difficulties: A Qualitative Study Exploring Individual Experiences from First- and Second-Person Perspectives  [PDF]
Roseline Kim Fong Yong, Yoshihiro Kaneko
Open Journal of Preventive Medicine (OJPM) , 2016, DOI: 10.4236/ojpm.2016.61001
Abstract: Hikikomori is a recent phenomenon among young adults in which they isolate themselves from social contacts and responsibility for more than 6 months. This problem has assumed epidemic proportions in Japan and has been widely discussed across disciplines. Previous studies have associated hikikomori with a maladaptation to structural change, an emergent mental problem that needs new diagnosis, or an under-diagnosed schizophrenic disorder. Most previous work has adopted a clinical perspective, and there have been no qualitative studies exploring the individual feelings of people suffering from the syndrome. We adopted a qualitative method using a grounded theory approach. Data collection and analysis took place between September 2006 and August 2008. Theoretical sampling included eight informants from snowball sampling and an online observation consisting of 160 online participants. Analysis focused on informants’ first- and second-person experiences of hikikomori. Data analysis revealed one overriding theme: coping difficulties consisting of the two categories stasis and expression. As a result of conflicting demands and reduced autonomy, respondents experienced stasis, which prevented them from moving forward; “hiding” or “avoiding” heightened the expression of their behaviors. This is the first study to explore the in-depth experience of individuals suffering from hikikomori syndrome in a non-clinical setting. We argue that hikikomoriis not a result of asocial behavior, but rather an anomic response to a situation that informants felt powerless to change and from which they could see no way out. We also observed that feelings of hopelessness and relationship fatigue might be overcome by introducing a relaxed social environment that people can control during rehabilitation.
Carcinoid tumor of the minor papilla in complete pancreas divisum presenting as recurrent abdominal pain
Yong Kim, Tae Kim, Kyeong Kim
BMC Gastroenterology , 2010, DOI: 10.1186/1471-230x-10-17
Abstract: A 56-year-old female patient was referred for evaluation of pancreatic duct dilatation noted on abdominal ultrasonography and computerized tomography. She complained of intermittent epigastric pain for 6 months. A MRCP and ERCP revealed complete pancreas divisum with dilatation of the main pancreatic duct. On duodenoscopy, a small, yellows, subepithelial nodule was visualized at the minor papilla; biopsy of this lesion revealed a carcinoid tumor. She underwent a pylorus-preserving pancreaticoduodenectomy. The histologic evaluation showed a single nodule, 1 cm in diameter, in the submucosa with duodenal and vascular invasion and metastasis to the regional lymph nodes.Although the size of the carcinoid tumor was small and the tumor was hormonally inactive, the concomitant pancreas divisum led to an early diagnosis, the tumor had aggressive behavior. Carcinoid tumors of the minor papilla should be included in the differential diagnosis of recurrent abdominal pain or pancreatitis of unknown cause.Tumors of the minor papilla of the duodenum are very rare; the majority of tumors of the minor papilla of the duodenum are neuroendocrine tumors (NETs), such as somatostatinomas and carcinoid tumors [1-7]. Carcinoid tumors arise from enterochromaffin cells, and gastrointestinal carcinoids are usually located in the appendix, ileum, stomach, and rectum. Carcinoids of the minor papilla are extremely rare; only 8 cases have been reported in the literature [1-8].Pancreas divisum is the most common congenital anomaly of the pancreas, resulting from failure of fusion between the dorsal and ventral pancreatic ducts. Most exocrine secretions of the pancreas drain through the dorsal pancreatic duct and the minor papilla in the pancreas divisum. Patients with pancreas divisum usually have no clinical symptoms, but sometimes have recurrent abdominal pain or pancreatitis when disturbances in drainage of pancreatic secretion through the minor papilla occur.We report a very unusual case of a
Analysis of the sensory threshold between paretic and nonparetic sides for healthy rehabilitation in hemiplegic patients after stroke  [PDF]
Hye-Joo Jeon, Ju-Hyun Kim, Byong-Yong Hwang, Bokyung Kim, Junghwan Kim
Health (Health) , 2012, DOI: 10.4236/health.2012.412183
Abstract: The purpose of this study was to investigate the differences in the sensory threshold between the paretic and nonparetic sides of hemiplegic patients. 28 patients who were hemiplegic post-stroke (14 men and 14 women) participated in the electrical sensory and pain thresholds study; 22 patients who were hemiplegic post-stroke (13 men, 9 women) participated in a study measureing the sensory threshold with light touch. Electrical sensory and pain thresholds were measured in the forearm via transcutaneous electrical nerve stimulation. The light-touch threshold was measured in the forearm using monofilaments. The light-touch, electrical sensory, and pain thresholds for the paretic side were significantly higher than for the nonparetic side in our population, respectively. In both the nonparetic and paretic sides, the male group generally showed higher thresholds for pain and sensation than did the female group. These results suggest that the different evaluations of sensory thresholds performed in this study for healthy rehabilitation will be a valuable clinical tool in hemiplegic patients after stroke.
An Efficient Scheduling Scheme to Enhance the Capacity of VoIP Services in Evolved UTRA Uplink
Yong-Seok Kim
Lecture Notes in Engineering and Computer Science , 2008,
Nuclear Power: Is It Blessing Or Disaster in East Asia?
Yong Han Kim
Iranian Journal of Public Health , 2012,
Disaster And Evacuation Guide: Is It Sufficient To Foreigners?
Yong Han Kim
Iranian Journal of Public Health , 2012,
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