• Title/Summary/Keyword: Relapse

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CEPHALOMETRIC ANALYSIS OF POSTSURGICAL BEHAVIOR OF MANDIBULAR PROGNATHISM (하악전돌증의 술후 동태에 관한 두부계측학적 분석)

  • Kim, Jong-Ryoul;Kim, Tae-Kyu;Chung, In-Kyo;Yang, Dong-Kyu;Park, Sao-Byung;Son, Woo-Sung;Rhee, Byung-Tae
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.15 no.2
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    • pp.123-128
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    • 1993
  • For the purpose of studying postsurgical stability of mandibular prognathism, 18 patients(8 men and 10 women) were selected who underwent sagittal split ramus osteotomy and lateral cephalograms taken preoperatively, immediate postoperatively, and over 6-month follow-up were traced and analysed. The following results were obtained. 1. Average magnitude of setback vas 11.0mm, and aberage relapse was 3.0mm, so the rate of relapse was 27%. 2. Magnitude of mandibular setback contributed to relapse. 3. The patients of less than 10mm setback showed average 10% of relapse rate, and it was of little clinical significance. 4. Proper detachment of pterygomasseteric sling prevention of clockwise rotation of proximal segment and rigid fixation are recommended for the better postoperative stability.

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A STUDY OF THE CHANGE OF MANDIBLE POSITION AND THE STABILITY AFTER ORTHOGNATHIC SURGERY (악교정 수술후 하악 근원심 골편의 위치 변화와 안정성에 관한 연구)

  • Nam, Kwang-Ho;Lee, Sang-Chull
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.29 no.2
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    • pp.95-101
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    • 2003
  • The purpose of this study was to evaluate the patterns of skeletal changes of proximal and distal segments after one jaw surgery and two jaw surgery with posterior impaction using SSRO on mandible in order to determine the skeletal origin of relapse and compare the stability of surgical methods in anterior open bite. The points and lines from lateral cephalometrics were measured before, after surgery, and at least 6-month follow up period. And then, the positional change of the proximal and distal segment were evaluated respectively. The results obtained were as follows; In cases of two jaw surgery, the results were stabler because they had less relapse factors. In cases of one jaw surgery, the value of APD were increased but it didn't relapse to the original value. Both of proximal and distal segments were responsible for the relapse tendency. But in one jaw surgery, the rotation of proximal segment was more responsible, and in two jaw surgery, the rotation of distal segment was.

Comparative Study of Skeletal Relapse According to the Fixation Method after BSSRO for Mandibular Setback. (하악 시상골 절단술 후 고정 방법에 따른 회귀 성향에 대한 비교 연구)

  • Bae, Jin-Oh;Lee, Dong-Keun;Oh, Sung-Hwan;Sin, Ki-Young;Chang, Kwan-Sik
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.22 no.2
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    • pp.184-190
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    • 2000
  • Objective : To compare two different methods of rigid fixation in postoperative stability after mandibular setback. Material and Methods : 28 patients with Class III malocclusion were treated by bilateral sagittal split ramus osteotomy(BSSRO) and mandibular setback were selected for this study. Group A(n=14) had the bone segments fixed with monocortical miniplate on the lateral side of the mandibular body and Group B(n=14) had three noncompressive bicortical screw inserted at the genial area through a transcutaneous approach. Cephalograms were taken preoperatively, postoperatively within 1 weeks and at a follow-up period (mean 8.9 months after surgery) and the amount of setback and postoperative change were measured. Results : Postoperative relapse between two groups was minimal in setback of the mandible. Statistical analysis showed no significant difference in postoperative relapse. Conclusion : This study suggests that both methods of skeletal fixation investigated give comparable postoperative stability and their use in mandibular setback appears to be a fairly stable clinical procedure .

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SKELETAL RELAPSE AFTER SAGITTAL SPLIT RAMUS OSTEOTOMY AND SCREW FIXATION (하악전돌증에서 하악지 시상분할골절단 및 Screw고정후 골성회귀에 관한 연구)

  • Lee, Chang-Kug;Kim, Myung-Rae;Choi, Jang-Woo;Yun, Jung-Hoon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.18 no.4
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    • pp.563-569
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    • 1996
  • Skeletal and dental changes were examined in 38 patients of mandibular prognathism who been treated by a bilateral sagittal split osteotomy(SSRO) and internal fixation using titanium mini-screws. All patients were followed up for over 8 months after the surgeries, and postoperative cephalometric measurements were compared at 2 months and at 8 months. Linear measurements of the "Pog-most posterior screws" and angular measurementsts of "SN-Pog'were compared to figure out the change of bony fragments. The significancy of data were tested by unpaired T-test. The results were as follows : 1. The fixation screws were changed in cephalometric position as little as $0.32{\pm}2.51mm$ in SSRO and $0.15{\pm}1.00mm$ in SSRO & Le Fort I Osteotomy.(P<0.05) 2. Mandibular set-back over 5mm resulted in less stability of the fixation screws and higher relapse tendency. 3. The internal fixation using two screws along the inferior border and one on the superior ridge is considered to be very resistant to postoperative relapse of the repositioned bony segments.

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Perceived Benefits and Barriers According to the Stage of Mammography Adoption in Adult Women (성인 여성의 유방조영술 검진 참여 단계에 따른 이익요인과 장애요인 분석)

  • Hur, Hea Kung;Song, Hee-Young
    • Korean Journal of Adult Nursing
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    • v.17 no.3
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    • pp.474-483
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    • 2005
  • Purpose: This descriptive study was undertaken to explore the distribution of stages of mammography adoption and identify benefits and barriers perceived by women according to the stage of mammography adoption. Methods: A total of 227 women aged between 30 - 60 was selected by the convenient sampling in W city. The instrument developed by the researcher based on the scales of Champion(1993), Champion & Skinner(2003), and Rakowski et al (1992) was used. Results: The distribution of stages of mammography adoption was as following; precontemplation 30.7%, contemplation 23.8%, relapse 20.2%, action 14.4%, and maintenance 10.8%. Women in maintenance and actors showed high scores in benefits and low scores in barriers. Those in relapse reported high scores in both benefits and barriers, while precontemplators and contemplators showed high score in barriers and low scores in benefits. Conclusion: Despite the rate of mammography participation has increased, the proportion of maintenance stage is still low and that of relapse is high. For those in relapse, strategies to eliminate barriers hindering regular and continuous mammography are necessary. For precontemplators and contemplators, detail information including purpose, procedure and benefits of mammography should be given primarily.

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A Consumer Survey on the Efface of Clothing Materials on Atopic Determatitis (의복소재가 아토피 피부염에 미치는 영향에 대한 소비자 조사)

  • Park, Young-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.7
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    • pp.1116-1128
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    • 2008
  • The purpose of this study was to investigate the effects of clothing materials on the atopic determatitis of atopic patients. A questionnaire was used as the measurement tool of this study. The survey of questionnaire was performed for atopic patients of 987. For the statistical analysis of data, $X^2$-test and percentage of SPSS were used. In the analysis results of the clothing materials which are both effective and ineffective against atopic determatitis, the results indicate that the most effective clothing materials for atopic determatitis were the those containing natural aroma and the most ineffective clothing materials for atopic determatitis were the those containing nylon. In the difference analysis results of both the relapse materials and the relapse factors for atopic determatitis according to demographic variables, both the relapse materials and the relapse factors for atopic determatitis showed a significant difference according to gender, age, educational background, monthly income, and occupation. Consequently, the results of this study will help develop the clothing materials suitable for atopic patients and lay the foundation for managing atopic determatitis more effectively through the rational choice of clothing of atopic patients.

An Unusual Case of Acute Lymphocytic Leukemia with Extramedullary Relapse Presenting as Parotid Enlargement (급성 림프구성 백혈병 환자에서 이하선 비대로 나타난 골수외 재발 1례)

  • Lee, Dong-Hee;Cho, Kwang-Jae
    • Korean Journal of Bronchoesophagology
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    • v.11 no.1
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    • pp.21-24
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    • 2005
  • Acute lymphocytic leukemia(ALL) is a malignant disease of the bone marrow in which early lymphoid precursors proliferate and replace the normal hematopoietic cells of the marrow. Currently, only $20-30\%$ of adults with ALL are cured with standard chemotherapy regimens. It is very important risk factor whether to failure to achieve complete remission within 4 weeks or not. The relapse of leukemia is usually classified as hematologic and extramedullary relapse, and extramedullary leukemic infiltration is rarely observed in patients with ALL. In October 2004, a 23-year-old man presented with painless enlargement of both parotid glands. He was diagnosed as ALL(L2 subtype) one month ago, and he gained complete remission with induction chemotherapy. Fine needle aspiration cytology and bone marrow biopsy revealed extramedullary and hemtologic remission. To our knowledge this is the first report of extramedullary relapse in the parotid in ALL.

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Effects of Abstinence Self-efficacy and Social Support on Relapse Risk in Community-dwelling Adults with Alcohol Use Disorder (지역사회에 있는 알코올 사용 장애자의 금주 자기효능감, 사회적 지지가 재발 위험성에 미치는 영향)

  • Kim, Mi Hye;Hyun, Myung Sun
    • Journal of Korean Academic Society of Home Health Care Nursing
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    • v.29 no.2
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    • pp.194-203
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    • 2022
  • Purpose: This study investigated the factors influencing the risk of relapse in community-dwelling adults with alcohol use disorder. Methods: This study included 122 community-dwelling individuals with alcohol use disorder who were receiving outpatient treatment at a mental health treatment hospital or were enrolled in a treatment program at the Community Addition Management Center in Gyeonggi Province. Data were collected using self-administered questionnaires from July to August 2020. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Pearson's correlation coefficient, and multiple regression analysis using SPSS 25.0. Results: Abstinence self-efficacy (𝛽=-.56, p<.001), social support (𝛽=-.35, p=.009), female sex (𝛽=11.29, p=.015), and a family history of alcoholism (𝛽=9.41, p=.026) were significant predictors of relapse risk, accounting for 56% of the variance (F=12.68, p<.001). Conclusion: The findings of this study suggest that abstinence self-efficacy and social support are pivotal in reducing risk of relapse in individuals with alcohol use disorder. Therefore, relevant and effective interventions focusing on enhancing abstinence self-efficacy and social support are required.

COMPARATIVE STUDY OF STABILITY AND RELAPSE ACCORDING TO FIXATION METHOD AFTER BILATERAL SAGITTAL SPLIT RAMUS OSTEOTOMIES IN MANDIBULAR PROGNATHIC PATIENTS (하악전돌증 환자의 하악지시상분할골절단술 후 고정방법에 따른 안정성과 회귀율에 대한 분석)

  • Choi, Hee-Won;Kim, Kyoung-Won;Lee, Eun-Young
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.27 no.4
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    • pp.334-345
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    • 2005
  • The purpose of this study was to compare the postoperative stability and relapse according to 2 different fixation methods after bilateral sagittal split ramus osteotomies in mandibular prognathic patients. Tweenty one patients with Class III dental and skeletal malocclusion who were treated with bilateral sagittal split ramus osteotomy were selected for this retrospective study. We classfied the patients into two groups according to the fixation methods of bony segments after osteotomies. Group W (n = 10) had the bone segments fixed with nonrigid wire and Group S (n = 11) had bicortical screws inserted in the gonial area through a transcutaneous approach. Cephalometric radiographs were taken preoperatively, immediate postoperatively and more than six months postoperatively in each patient. After tracing the cephalometric radiographs, various parameters were measured. Before surgery, both groups were balanced with respect to linear and angular measurements of craniofacial morphology. Mean posterior sagittal setback amounts of the mandibular symphysis was 8.6 mm in the wire group and 6.79 mm in the rigid group, Six months postoperatively, the wire group had 33.1% relapse of the mandibular symphysis and 22.8% in the rigid group relapse. Both groups experienced changes in the orientation and configuration of the mandible. It is thought that Rigid screw fixation is a more stable method than nonrigid wire fixation for maintaining mandibular setback after sagittal split ramus osteotomy.

THE SKELETAL STABILITY OF LE FORT I MAXILLARY ADVANCEMENT (Le Fort I 상악골전진술 후 안정성에 관한 연구)

  • Seo, Min-Gyo;Koo, Sung-Young;Kim, Eun-Ju;Leem, Dae-Ho;Shin, Hyo-Keun;Ko, Seung-O
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.32 no.2
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    • pp.149-153
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    • 2010
  • The purpose of this retrospective study was to evaluate relapse, comparing large and small maxillary advancements with four-plate rigid fixation and without bone grafting. All patients had skeletal class III malocclusion, and underwent bimaxillary surgery. Standardized cephalometric analysis by one examiner was performed on serial radiographs of 14 patients immediately before surgery, and within 1 week and at least 6 months postoperatively (mean 10 months). The group was divided into two subsets to determine whether the magnitude of relapse. In group 1 ($\leq$ 5 mm, n = 8), the average advancement was $4.0{\pm}0.9\;mm$, with a mean relapse of $0.1{\pm}0.5\;mm$. In group 2 (6-8 mm, n = 4), the average advancement was $6.8{\pm}0.9\;mm$, with a mean relapse of $0.7{\pm}0.4\;mm$. There was no statistical difference in the measured relapse among the groups. Maxillary advancement with a 1-piece Le Fort I osteotomy is a relatively stable procedure.