• 제목/요약/키워드: Peak Age

검색결과 858건 처리시간 0.033초

6세에서 17세 사이의 정상 교합 아동의 아데노이드와 악골의 성장에 관한 준종단적 연구 (Semi-longitudinal study of adenoid and jaw growth of normal occlusal children aged 6 to 17)

  • 유형석;박선형;최은빈;문제상;박영철
    • 대한치과교정학회지
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    • 제30권6호
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    • pp.699-712
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    • 2000
  • 림프조직은 비인두 부위에서 Waldeyer's ring의 일부조직으로 tonsil을 이루며 정상적으로 존재한다. 이러한 림프조직이 임상적인 증상을 나타낼 정도로 과증식한 것을 'Adenoid vegetation or Adenoids'라고 이른다. 아데노이드는 일반적으로 유년기에 발생하며 $2\~12$세때 특징적인 증상을 보인다. 사춘기시기에 이르면 절대적인 아데노이드 크기 감소와 주변의 비인두의 성장으로 인한 상대적 크기 감소가 나타난다. 그리하여 성인이 되면 아데노이드는 퇴화된 상태로 변하게 된다. 아데노이드는 구호흡의 주요한 원인 중 하나이며, '아데노이드 얼굴'이라는 특징적인 안면형태를 야기한다고 알려져 있다. 아데노이드에 의한 구호흡이 안면 형태와 치열에 영향을 미칠 수 있다는 주장은 오래 전부터 제기되고 있으나, 여러 가지 복합적인 원인으로 이들간의 상호연관정도를 정확히 알기가 어려웠다. 이에 본 연구에서는 정상 교합 아동에서의 골 연령에 따라 아데노이드와 악골 크기의 정상치와 성장변화량을 제시하고 이들간의 상관관계를 알아보았으며 다음과 같은 결과를 얻었다. 1. 골 연령에 따른 남녀별 계측항목의 평균과 표준편차를 얻었다. 2. 같은 골연령을 비교시 남자는 여자보다 약 2년 가량 성장속도가 느렸다. 3. 비인두의 height과 depth는 남자에서는 CVMI 1과 2 때 많은 성장을 보이고, CVMI 4 이후에서는 성장을 보이지 않았으며, 여자에서는 모든 골 연령에서 유사한 정도의 성장이 나타났다. 4. 비인두의 상대적 면적은 남자에서 CVMI 1에서 2로 이행되는 시기에 유의한 증가를 보였다. 5. 비기도의 상대적 면적과의 상관분석에서 남녀 모두에서 아데노이드 항목중에서는 Ad2와 관련된 항목과 uppe pharynx가 높은 상관관계를 보였으며, 치열궁과 관련된 항목중에는 상$\cdot$하악의 견치간 너비, 상악의 대구치간 너비, 구개정 높이가 상관관계가 있었다.

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Treatment of Unruptured Intracranial Aneurysms in South Korea in 2006 : A Nationwide Multicenter Survey from the Korean Society of Cerebrovascular Surgery

  • Kim, Jeong-Eun;Lim, Dong-Jun;Hong, Chang-Ki;Joo, Sung-Pil;Yoon, Seok-Mann;Kim, Bum-Tae
    • Journal of Korean Neurosurgical Society
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    • 제47권2호
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    • pp.112-118
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    • 2010
  • Objective : There have been no clinical studies regarding the epidemiology and treatment outcome for unruptured intracranial aneurysm (UIA) in South Korea yet. Thus, The Korean Society of Cerebrovascular Surgery (KSCVS) decided to evaluate the clinical and epidemiological characteristics, and outcome of the treatment of UIA in 2006, using the nationwide multicenter survey in South Korea. Methods : A total of 1,696 cases were enrolled retrospectively over one year at 48 hospitals. The following data were obtained from all patients : age, sex, presence of symptoms, location and size of the aneurysm, treatment modality, presence of risk factors for stroke, and the postoperative 3D-day morbidity and mortality. Results : The demographic data showed female predominance and peak age of seventh and sixth decades. Supraclinoid internal carotid artery was the most common site of aneurysms with a mean size of 5.6 mm. Eight-hundred-forty-six patients (49.9%) were treated with clipping, 824 (48.6%) with coiling, and 26 with combined method. The choice of the treatment modalities was related to hospital (p=0.000), age (p=0.000), presence of symptom (p=0.003), and location of aneurysm (p=0.000). The overall 30-day morbidity and mortality were 7.4% and 0.3%, respectively. The 30-day mortality was 0.4% for clipping and 0.2% for coiling, and morbidity was 8.4% for clipping and 6.3% for coiling. Age (p=0.010), presence of symptoms (p=0.034), size (p=0.000) of aneurysm, and diabetes mellitus (p=0.000) were significant prognostic factors, while treatment modality was not. Conclusion : This first nation-wide multicenter survey on UIAs demonstrates the epidemiological and clinical characteristics, outcome and the prognostic factors of the treatment of UIAs in South Korea. The 30-day postoperative outcome for UIAs seems to be reasonable morbidity and mortality in South Korea.

이중에너지 방사선 흡수계측법을 이용한 성인 남녀의 장골 및 경골의 골밀도에 관한 연구 (A STUDY ON THE BONE MINERAL DENSITY OF ILIAC AND TIBIAL BONE USING DUAL ENERGY X-RAY ABSORPTIOMETRY)

  • 조용석;김경원;이경호;박현진;서상수;오상엽
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제22권3호
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    • pp.265-273
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    • 2000
  • Purpose : The aim of this study was to evaluate the bone mineral density of iliac and tibial bone which are frequently selected as autogenic bone graft donor sites, and to evaluate the efficiency of this method as a guideline for the selection of bone graft donor site. Materials and Methods : In this study 61 male and 70 female volunteers at Chungbuk National University Hospital were involved between Jan. 1998 to Sept. 1999. We measured bone mineral density of the iliac and the tibial bone using dual energy X-ray absorptiometry. We evaluated the data using the SAS system for Windows and bone mineral density of the lumbar was used for control. Results : Age showed the highest correlation in correlation matrix between physical and bone variables. Height and weight showed lower correlation of linear increment. In man, the change of bone density according to age demonstrated linear decrease irrespective of the lumbar, ilium, and tibia. In woman, the change of bone density according to age showed cubic form, which increased in the third and forth decade. So it had a peak bone mass on about 35 year-old, thereafter, the change of bone density slowly decreased until 50 year-old, but it rapidly decreased after 50 year-old and it slowly decreased again after 65 year-old. Both in all subjects and subject with osteoporosis, the change of bone mineral density according to age showed statistically significant decrease in lumbar and tibia, but ilium was irrespective. Conclusion : In patients of aged or with osteoporosis, ilium demonstrated less tendency of decrease in bone mineral density than tibia. So this preliminary study suggested that ilium seemed better donor site for autogenic bone graft than tibia.

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한국재래닭의 능력에 관한 연구 II. 한국재래닭의 계통별 능력 비교 (Studies on the Performance of Korean Native Chickens II. A Comparison of Performance of Various Korean Native Chickens)

  • 김상호;이상진;강보석;최철환;장병귀;오봉국
    • 한국가금학회지
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    • 제25권4호
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    • pp.177-183
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    • 1998
  • 한국재래닭의 육성기 및 산란기 능력을 연구하기 위하여 적갈색, 황갈색, 흑색 3계통 810수를 공시하여 64주간 사양시험을 실시하였다. 급여사료는 한국표준 닭사료급여기준(1994)에 준하여 급여하였으며 그 결과는 다음과 같다. 1. 육성률은 적갈색이 가장 높았고 흑색이 가장 낮으며, 체중은 흑색이 무거웠고 갈색계통은 비슷하였지만 통계적 유의성은 없었다. 2. 20주령까지 사료섭취량은 계통간 비슷하였으며, 50% 산란일령은 황갈색이 가장 빨랐으나 유의성은 인정되지 않았다. 3. 전기간 평균 산란율은 황갈색, 흑색, 적갈색 순이었으며(P<0.05), 난중은 적갈색이 약간 무거웠다(P<0.05). 4. 사료섭취량은 3계통 모두 105g으로 동일하였으며, 사료요구율은 황갈색이 다른 계종에 비하여 개선되었다(P<0.05). 5. 난각강도는 계통간 차이가 없었으며 난각두께는 난중이 무거운 적갈색이 두꺼운 것으로 나타났고 (P<0.05), 난질은 계통간 차이가 없었다. 6. 수정율은 산란중기 및 후기에서 황갈색이 가장 낮았고 적갈색이 가장 높게 나타났다(P<0.05). 7, 부화율은 산란중기에서는 계통간 차이가 없었으나, 산란후기에는 갈색계통에 비하여 흑색이 낮았다(P<0.05). 8. 한국재래닭의 육성기 및 산란기 능력은 계통간 큰 차이가 없었으나, 황갈색의 산란율이 다른 계통에 비하여 높았으며 사료요구율도 개선되었다.

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자선(自癬)의 역학적(疫學的) 연구(硏究) (An Epidemiologic Study on Dermatophytoses)

  • 김종민;김홍식
    • 한국균학회지
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    • 제5권2호
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    • pp.11-15
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    • 1977
  • 1. 1972년(年) 7월(月)부터 만 4년(年) 6개월간(個月間) 서울시내 6개(個) 대학병원(大學病院)에 내원(來院)한 환자(患者) 총 144,630명중(名中) 전풍(?風)을 포함(包含)한 백선증(白癬症) 환자(患者)는 7,221명(名), 5.1%이었다. 2. 연령별발병분포(年齡別發病分布)를 보면, 전(全) 백선증환자(白癬症患者)의 42.4%가 $20{\sim}29$세군(歲群)에 있어 가장 많았고, 9세(歲) 이하(以下) 및 50세(歲) 이후(以後)의 연세군(年歲群)에서 가장 낮은 빈도(頻度)를 보여주고 있다. 3. 병형별(病型別)로는 완선(頑癬)이 2,749명(名), 38.1%로 가장 많았고, 족부백선(足部白癬)이 2,053명(名), 28.4%로 다음이었으며, 두부백선(頭部白癬)은 98명(名), 1.3%로 가장 적었다. 4. 성별(性別) 분포(分布)는 전체적(全體的)으로 남(男) 여(女)의 비(比)가 2 : 1로 남자환자(男子患者)가 많았고, 병형별(病型別) 남(男) 여(女)의 비(比)는 완선(頑癬)이 17.4 : 1, 두부백선(頭部白癬)과 반풍(瘢風)이 각각(各各) 1.9 : 1로 남자환자(男子患者)가 많았으나 기타(其他)의 병형(病型)에서는 여자환자(女子患者)가 많았다. 5. 연도별(年度別)로는 수부백선(手部白癬)이 매년(每年) 증가(增加)하는 경향(傾向)을 보인 이외(以外)에는 연도별(年度別)로 특이(特異)한 변동(變動)은 인정(認定)할 수 없었다.

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The Use of Radioimmunoassay to Moniter Reproductive Status of Cheju Native Cattle and the Effect of Su, pp.ementary Feeding on Reproduction 1. Body Weight Changes, Breeding Performances and Progesterone Levels from Weaning until First Calving

  • Chung, D.C.;Kim, J.K.;Kim, D.C.;Beak, Y.K.;Moon, S.H.
    • 한국가축번식학회지
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    • 제10권1호
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    • pp.49-57
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    • 1986
  • Studies were conducted to investigate the relationship between hormone leveles and nutritional levels for improving performance of Cheju native cattle. In June 1984 a trial was initiated using 8 Cheju native calves after weaning, fed at two su, pp.ementary feeding levels (NRC 100% and 70%). The body weight, breedng performence, change in progesterone level during pregnancy and estrus cycle were evaluated. Mean body weight at 6 months of age was 155kg when fed 100% NRC ration but it was only 137kg when heifers received the 70% NRC ration. At 10, 15 and 20 months of age the body weight was 66, 160 and 115kg, respectively, showing that heifers fed the standard ration gained weight rapidly (P<0.01). Average size of the lefe ovary in the standard group was 2.1${\times}$1.6cm and right ovary was 2.6${\times}$1.8cm. However in the restricted feeding group the ovaries were found to be smaller. Diameter of graffian follicles showed a similar tendency to ovarian size in the two groups. The first oestrus in the standard feeding group a, pp.ared at 14.6 months when body weight was 265kg. Age at first calving was on average 28.9 months at a body weight of 436kg. On the other hand when heifers were fed the restricted ration the first oestrus a, pp.ared at 23.0 months at a body weight of 250kg. Average age at first calving was 38.9 months which was 10 months later than the average in the standard feeding group (P<0.01). In standard feeding group the progesterone level was 2.0ng/ml at two weeks after pregnancy and gradully increased up to 4 weeks and peaked at 18 weeks. This peak (6.4-6.5ng/ml) was maintained up to 24 weeks when progesterone level decreased until it reached 2.1ng/ml at the end of pregnancy. In the restricted group progesterone level up to 16 weeks followed a similar pattern to the standard group but there was a tendency in the restricted group to have lower progesterone levels(P<0.01). The standard and srstricted groups showed similar patterns of progesterone concentration during the oestrus cylce. There were no statistically significant differences in progesterone levels between standard and restricted groups but there was variation between induvidual animals.

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Comparison of the Clinical and Laboratory Features of COVID-19 in Children During All Waves of the Epidemic: A Single Center Retrospective Study

  • Sunbok Suh;Hyungsu Kim
    • Pediatric Infection and Vaccine
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    • 제31권1호
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    • pp.83-93
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    • 2024
  • 목적: 코로나19 판데믹이 시작된 이후, 다양한 주요 변이 바이러스가 출현했다. 코로나 19 판데믹 기간 동안 대표적인 주요 변이 바이러스 유행 시기를 네 가지로 나누고, 네 가지의 주요 변이 바이러스 시기로부터 임상적 그리고 혈액학적 검사의 특징을 파악하고자 하였다. 방법: 코로나19 확진으로 입원한 19세 이하 환자의 의무기록을 후향적으로 분석하였다. 변이전시기(2020년 2월 1일-2020년 9월 30일), 알파와 베타 변이 시기(2020년 10월 1일-2021년 5월 31일), 델타 변이 시기(2021년 6월 1일-2021년 10월 31일), 오미크론 변이 시기(2021년 11월 1일-2022년 5월 31일)를 비교하였다. 결과:대상환자 827명중에서 163명(19.7%)가무증상이었고, 발열과기침의빈도는각각 320명(38.7%), 399명(48.2%)이었다. 38.5℃ 이상의 발열이 있었던 경우는 12세 미만인 경우에 오미크론 변이 시기에 높게 관찰되었다. 혈액학적 검사에서 백혈구 감소증, 임파구 감소증 그리고 호중구 감소증은 각각 33%, 30.2%, 24.9%로 관찰되었다. 결론: 코로나 19의 주요 변이 바이러스 우세 시기에 다른 특징들이 있었다. 델타 변이 시기에 4일 이상의 발열이 지속되는 경우가 더 많았고, 오미크론 변이 시기에는 38.5℃ 이상의 발열을 가지는 경우가 많았다.

Clinicopathologic Profile of Breast Cancer Patients in Pakistan: Ten Years Data of a Local Cancer Hospital

  • Khokher, Samina;Qureshi, Muhammad Usman;Riaz, Masooma;Akhtar, Naseem;Saleem, Afaf
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권2호
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    • pp.693-698
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    • 2012
  • Breast cancer is the most frequent cancer of women worldwide, with considerable geographic and racial/ethnic variation. Data are generally derived from population based cancer registries in the developed countries but hospital data are the most reliable source in the developing countries. Ten years data from 1st Jan 2000 to 31st Dec 2009 of a cancer hospital in Pakistan were here analyzed by descriptive statistics to evaluate the clinicopathologic profile of local breast cancer patients. Among 28,740 cancer patients, 6,718 were registered as breast cancer. The female to male ratio was 100:2. Breast cancer accounted for 23% of all and 41% of female cancers. Some 46% were residents of Lahore, with a mean age of $47{\pm}12$ years. Less than 1% were at Stage 0 and 10%, 32%, 35% and 23% were at Stage I, II, III and IV respectively. Histopathology was unknown in 4% while 91%, 2% and 1% had invasive ductal carcinoma (IDC), invasive lobular carcinoma (ILC) and mucinous carcinoma respectively. Rare carcinomas accounted for the rest. Tumor grade 1, 2 and 3 was 11%, 55% and 34% among the known. Profile of breast cancer patients in Pakistan follows a pattern similar to that of other developing countries with earlier peak age and advanced disease stage at presentation. The male breast cancer accounts for higher proportion in the local population. Local women have higher frequency of IDC and lower frequency of ILC and DCIS, owing probably to a different risk profile. Use of hospital information systems and establishment of population based cancer registry is required to have accurate and detailed local data. Promotion of breast health awareness and better health care system is required to decrease the burden of advanced disease.

여드름에 관한 임상적 연구 (A Clinical study of Recurrent Acne in the Oriental Medicine)

  • 최인화
    • 한방안이비인후피부과학회지
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    • 제13권2호
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    • pp.140-151
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    • 2000
  • Acne is a common chronic disease which most frequently affects the face, appearing in both males and females near puberty, and in most cases becomes less active as adolescence ends. The intensity and duration of activity vary for each individual. The disease may be minor, with only a few comedones or papules, or it may occur as the highly inflammatory and diffusely scarring acne conglobation. Permanent scarring of the skin and psyche can result from such inaction. The disease, however, has implications far beyond the few marks that may appear on the face. The lesions cannot be hidden under clothing; each is prominently displayed and detracts significantly from one's personal appearance and self-esteem. Recently many of acne patients are visiting to Oriental Medicine Hospitals. They want to receive the treatment of acne related another disease and causes, or worry about side effects of antibiotics and hormone therapy. This study was performed at Pundang Cha Oriental Medicine Hospital Department of Dermatology from March 1, 1997 to February 29, 2000 in 31 patients with recurrent acne. We investigated the clinical findings, included distribution of age & sex, severity of acne, sites on face, related causes, duration of disease and causes of visiting Oriental Medicine Hospital and so on. The results were as follows : The peak age at onset was 20-29 years old in females with 16 cases reported. The 22 total cases patients had severe signs with most frequently sites being forehead & chin. They visited Oriental Medicine Hospital because they want to take the treatment of acne related with another body problems(12 cases) and worry about side effects of antibiotics. Twenty cases were diagnosed 肺熱血熱(20 cases). And given acupuncture treatment, herb-medication and sometimes we used external applications. Relatively, their satisfaction grade was high. Dermatologists are trying to treat new methods in order to remove scar and decrease sebaceous gland secretion,. And we, Oriental Medicine doctors, have to develop and offer to patients the most effective management and successful treatment of this disease.

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갑상선(甲狀線) 분화암(分化癌)의 방사성 요드-131 치료(治療)에 대한 임상적(臨庶的) 고찰(考察) (A Clinical Review of Radioactive Iodine-131 Therapy in Differentiated Thyroid Carcinoma)

  • 박운규;이대영;전성은;오성수;정을삼
    • 대한두경부종양학회지
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    • 제12권1호
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    • pp.32-42
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    • 1996
  • This study was desinged to evaluate the effect of radioactive iodine-131 therapy in differentiated thyroid carcinoma treated at the Presbyterian Medical Center, Chonju during the 20-year period from 1975 to 1994. The authors reviewed 246 patients who received radioactive iodine-131. An analysis of the therapeutic response and survival rates of the 246 patients has been carried out. The male to female ratio was 1 : 3.6. The peak incidence was in the 4th and 6th decades. The histologic findings in the 246 patients were papillary adenocarcinoma in 200 cases, follicular adenocarcinoma in 29 cases, mixed type in 14 cases, and others in 3 cases. Combined treatment modalities of 246 patients consisted of sugery and radioiodine in 222 cases, surgery with radioiodine and external irradiation in 11 cases, and surgery with radioiodine, external irradiation and chemotherapy in 5 cases. 42 of the 246 cases showed recurrence and the commonest type of combined treatment for recurrent case was surgery followed by radioiodine-131. The highest accumulated total dosage of radioiodine-131 was 480mCi in that case femoral metastasis was noticed. The most common locoregional metastatic site was ipsilateral cervical node, and neighbouring muscle, vessel, trachea, recurrent layngeal nerve, in order of frequency. The determinate 10-year survival rate was 91.8% in the group receiving surgery followed by radioiodine-13l and 71.4% in patients receiving surgery, radioiodine-13l with XRT. The determinate 10-year survival rate was better for patients under 40 years of age who received radioiodine as compared to patients over 40 year of age(85.7% vs. 33.3%). The most usual primary therapeutic dosage in the group of cervical lesion was 90$\sim$120mCi after surgery.

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