• 제목/요약/키워드: Screening tests

검색결과 721건 처리시간 0.04초

자동화 매독검사 키트의 임상적 유용성 및 생물학적 위양성률의 평가 (Evaluation of Clinical Utility and Biologic False Positive (BFP) Rates in Automated Syphilis Test Kits for Syphilis Screening)

  • 김성만;이제훈
    • 대한임상검사과학회지
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    • 제41권1호
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    • pp.42-46
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    • 2009
  • Unlike most bacteria, Treponema pallidum subspecies cannot be readily isolated or sustained in cell culture for numerous generations. In korea, two non treponemal tests are currently considered as standard; the VDRL slide test and RPR card test. These tests are based on an antigen composed of an alcoholic solution containing measured amount of cardiolipin, cholesterol, and sufficient purified lecithin to produce reactivity. The nontreponemal reagin tests measure immunoglobulin M (IgM) and IgG to lipoidal material released from damaged host cells as well as to lipoprotein-like material and possibly by cardiolipin released from the treponemes. The object of the evaluation was to evaluate the performance of the Mediace RPR kit on the automated biochemistry analyzer system as a method for screen method of syphilis as well as to identify BFP possibility. For evaluation of routine screening test, a total 2,380 specimens tested by Mediace RPR from 28th Oct, 2007 to 22th Feb, 2008. For evaluation of BFP possiblility, we measured samples which have potential BFP reaction in Syphilis test such as ANA (anti-nuclear antibody) positive (135 samples), CRP (C-reactive protein) positive (100 samples), RF (Rheumatoid factor) positive (26 samples), and other potential BFP cases (17 samples) including total 278 samples. These samples were tested quantitative test Mediace RPR with Hitachi 7600 P module. For comparison with current manual test, VDRL slide test were performed. Of these 2380 specimens, 2350 were negative, 30 were positive, and one were positive with TPHA. Both methods agreed for 2356 (98.9%) samples. Of the 30 samples showed positive results over 1.0 R.U, 6 samples showed positive results with VDRL test. Of these 6 samples, 1 samples showed positive with TPHA test. The combination of the Automated Biochemistry analyzer and VDRL test for retest can be increase efficiency of syphilis screening test.

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Frequency of Unnecessarily Biopsies among Patients with Suspicion of Prostate Cancer in Syrian Men

  • Bachour, Dala-Maria;Chahin, Emil;Al-Fahoum, Sahar
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권14호
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    • pp.5967-5970
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    • 2015
  • Background: The prevalence of prostate cancer is considered high in many countries, and screening tests are very important in order to detect prostate cancer in its early stages; however false positivity with these screening tests means that a lot of patients undergo unnecessary biopsy, which is an invasive procedure, for the confirmatory test. The purpose of this study was to estimate the frequency of unnecessary biopsy cases in patients referred for prostate biopsy in one of the most important and overload cancer centers in Syria. Materials and Methods: Retrospective data for a period of four years between January 2009 and December 2012 were collected in Al-Bayrouni University Medical hospital in Damascus, Syria. The patients from whom data were collected were referred to our histopathological department because of elevated prostate specific antigen (PSA) serum or an abnormal digital rectal examination (DRE). All patients underwent prostatic TRUS-guided biopsies. Diagnosis of prostate cancer (PCa) or benign prostatic hyperplasia (BPH) was based on histopathological examination and prostate cancers cases were graded and scored according to the Gleason score system. Results: For the 406 patients referred to biopsy, the $mean{\pm}SD$ age was $58.4{\pm}23.3$ years. The $mean{\pm}SD$ PSA level was $49.2{\pm}21.5ng/ml$. Of the total we found 237 patients diagnosed with PCa (58. 4%), 166 patients with BPH (40.9%) and 3 cases were unable to be diagnosed (0.7%) because of biopsy collection errors. Conclusions: Our study shows that a high percentage of patients are undergoing unnecessary biopsy, which suggests that the performed screening tests had a high level of false positive and may need re-evaluation.

Teaching Breast Cancer Screening via Text Messages as Part of Continuing Education for Working Nurses: A Case-control Study

  • Alipour, Sadaf;Jannat, Forouzandeh;Hosseini, Ladan
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권14호
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    • pp.5607-5609
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    • 2014
  • Introduction: Although continuing education is necessary for practicing nurses, it is very difficult to organize traditional classes because of large numbers of nurses and working shifts. Considering the increasing development of mobile electronic learning, we carried out a study to compare effects of the traditional face to face method with mobile learning delivered as text messages by cell phone. Materials and Methods: Sixty female nurses working in our hospital were randomly divided into class and short message service (SMS) groups. Lessons concerning breast cancer screening were prepared as 54 messages and sent in 17 days for the SMS group, while the class group participated in a class held by a university lecturer of breast and cancer surgery. Pre- and post-tests were undertaken for both groups at the same time; a retention test also was performed one month later. For statistical analysis, the paired T test and the independent sample T test were used with SPSS software version 16; p<0.05 was considered significant. Results: Mean age and mean work experience of participants in class and SMS groups was $35.8{\pm}7.2$, $9.8{\pm}6.7$, $35.4{\pm}7.3$, and $11.5{\pm}8.5$, respectively. There was a significant increase in mean score post-tests (compared with pretests) in both groups (p<0.05). Although a better improvement in scores of retention tests was demonstrated in the SMS group, the mean subtraction value of the post- and pretests as well as retention- and pretests showed no significant difference between the 2 groups (p=0.3 and p =0.2, respectively). Conclusions: Our study shows that teaching via SMS may probably replace traditional face to face teaching for continuing education in working nurses. Larger studies are suggested to confirm this.

학교집단뇨검사를 통한 1형 막증식성 사구체신염의 조기진단의 효과 (The impact of early detection through school urinary screening tests of membranoproliferative glomerulonephritis type I)

  • 정성훈;박성신;김성도;조병수
    • Clinical and Experimental Pediatrics
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    • 제50권11호
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    • pp.1104-1109
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    • 2007
  • 목 적 : MPGN은 소아에서는 11년 이내에, 성인에서는 8년 이내에 50%가 사망하게 되는 불량한 예후를 지닌 만성신장병중의 하나이다. 한국에서는 1998년부터 학교집단뇨검사가 법으로 제정되어 시행되었다. 우리는 학교집단뇨검사를 통해 진단된 무증상의 막증식성 사구체신염과 증상이 있는 막증식성 사구체신염의 예후를 비교하였다. 방 법 : 1996년 1월부터 2005년 12월까지 본원 소아과에 입원하여 경피적 신생검 시행 후 병리조직학적 검사상 제 1형 MPGN으로 진단 받고 스테로이드 단독 또는 cyclosporine과 함께 또는 스테로이드만 단독으로 투여받고 있는 환자 18명의 특징과 예후를 분석하였다. 추적 관찰된 기간은 평균 6.3년이었다. 18명의 환자중에 7명의 환자는 학교집단뇨검사를 통해 진단된 환자이고, 11명의 환자는 진단당시 신증후군이나 급성신염, 육안적 혈뇨를 보이는 환자들이었다. 결 과 : 학교집단뇨검사로 진단된 환자들 가운데 남자는 4명이고, 여자는 3명이었다. 이들의 평균나이는 12.6세였다. 학교집단뇨검사에서 4명의 환자는 혈뇨와 단백뇨를 보였고, 1명의 환자는 단백뇨만 보였으며, 2명의 환자는 혈뇨만 보였다. 이들 가운데 3명이 진단 당시 혈청보체치가 감소하여 있었다. Methylprednisolone 충격요법 후에 5명의 환자(72%)가 혈뇨나 단백뇨없이 관해하였으며, 신기능이 저하된 환자는 한명도 없었다. 학교집단뇨검사를 받지 않은 그룹 가운데 남자는 9명이었고, 여자는 2명이었다. 이들의 평균나이는 14.4세였다. 진단 당시 7명의 환자는 신증후군 소견을 보였고, 3명의 환자는 육안적 혈뇨를 보였고, 1명의 환자는 현미경적 혈뇨와 함께 급성신부전의 소견을 보였다. 이들 가운데 진단 당시 혈청보체치가 감소하여 있던 환자는 5명이었다. 그리고 4명의 환자(36%)가 관해를 이루었으며, 1명의 환자는 복막투석을 필요로 하였으며, 3명의 환자에서 신기능이 저하되었으며 이 중 1명의 복막 투석을 필요로 하였다. 결 론 : 위의 사실들을 확실히 하기 위해서는 장기간의 연구가 필요하겠지만, 우리의 연구는 학교집단뇨검사를 통한 조기진단과 스테로이드 치료가 1형 막증식성사구체신염 환아의 예후에 도움이 될 것임을 보여주었다.

경도인지장애 선별을 위한 전산화 평가 항목 개발 (Development of Computerized Screening Test Items for Mild Cognitive Impairment)

  • 박진혁;박지혁
    • 재활치료과학
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    • 제7권4호
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    • pp.31-41
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    • 2018
  • 목적 : 본 연구는 경도인지장애 선별을 위한 전산화 평가 항목을 개발하는 것이다. 연구방법 : 문헌고찰을 통해 경도인지장애 선별을 위해 사용되는 기존의 전산화 평가에서 항목들을 추출하였다. 이후 델파이 기법을 실시하였으며, 전문가 패널들의 의견을 취합하여 추출된 항목들을 수정 및 보완하고 최종적으로 중요도 및 적합도를 판단하여 평가 항목들을 선택하였다. 결과 : 문헌고찰을 통해 12개의 전산화 평가에서 37개의 항목을 추출을 하였고 1차적으로 전문가들의 의견을 통해 11개의 항목을 추가하였다. 이후 2차 전문가 모임을 통해 48개의 항목에서 경도인지장애 선별에 부적합한 18개의 항목이 제거되었다. 마지막으로 내용타당도 분석을 실시한 결과, 30개 항목에서 12개 항목이 제거되어 최종적으로 16개의 항목이 선택되었다. 최종 16개의 항목은 주의력, 기억력, 실행기능 영역으로 구성되었다. 결론 : 경도인지장애 선별을 위한 16개의 전산화 평가 항목이 개발되었다. 추후 이 항목들을 이용하여 타당성 연구를 실시하여 경도인지장애 선별에 적합한지 확인할 필요가 있다. 또한 이 전산화 평가를 정상 노인 및 경도인지장애 노인에게 실시하여 전산화 평가에 대한 표준화 연구를 진행하여 임상에서 사용할 수 있도록 해야 할 것이다.

일부 사무직 근로자와 생산직 근로자간의 일반건강진단 검사 결과의 차이 (Differences of Screening Test Results of Health Examination between Clerks and Laborers)

  • 박종원;신동훈;이미영;서석권
    • Journal of Preventive Medicine and Public Health
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    • 제28권3호
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    • pp.543-550
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    • 1995
  • 이 연구는 대구시 소재 일개 검진기관에서 1992년도에 일반건강진단을 받은 근로자를 대상으로 하여 사무직 근로자와 생산직 근로자간의 차이가 선별검사 결과에서 있는지를 알기 위해 시행되었다. 대상자는 남자 6,597명과 여자 3,610명으로 총 10.2명이 선택되었다. 남녀별로 나누어 각 선별검사 항목별로 단일분석을 시행한 후 유의한 변수를 골라 지수 회귀분석을 이용하여 사무직종에 대한 생산직을 비교하였다. 청력검사 항목은 남녀 모두에서 사무직보다 생산직에서 이상률이 더 컸다. 혈구용적치와 고혈압 항목은 조정변수를 교정한 후에도 남녀모두 직종간의 차이가 없었다. 간기능과 요단백 항목은 남자에서 사무직의 이상률이 생산직보다 더 높은 것으로 나타났다. 시력항목은 여자에서만 직종간의 차이를 보였으며 사무직에서 시력교정의 필요성이 더 켰다. 이상의 결과는 사무직종과 생산직종간에 일반건강진단의 검사 결과에서 차이가 있으며 원인규명을 위한 연구가 필요함을 보여준다.

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Single-center experience of the Korean-Developmental Screening Test for infants and children

  • Suh, Chae-Ri;Sohn, Su Ye;Kim, Gun-Ha;Jung, Seong-Kwan;Eun, Baik-Lin
    • Clinical and Experimental Pediatrics
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    • 제59권12호
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    • pp.483-489
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    • 2016
  • Purpose: We investigated the number of test takers of the Korean-Developmental Screening Test (K-DST) in a single children's hospital within a year, according to age, referral rate, and follow-up percentage. Methods: For this study, 4,062 children who visited and received K-DST at Woorisoa Children's Hospital between January and December 2015 were enrolled. Seven test sets were used according to the Korean National Health Screening Program for infants and children in the following age groups: 4 to 6, 9 to 12, 18 to 24, 30 to 36, 42 to 48, 54 to 60, and 66 to 71 months. The results of the K-DST were categorized into 4 groups as follows: further evaluation (<-2 standard deviation [-2SD]), follow-up test (-2SD to -1SD), peer level (-1SD to 1SD), and high level (>1SD). Results: The test participants' population and follow-up population were concentrated before the age of 24 months (2,532, 62.3%). The children most commonly referred for further evaluation were those in the 30- to 41-month age group. A mismatch was found between the results of the K-DST and the additional questions. Most of the infants and children with suspicious developmental delays showed catch-up development in their follow-up tests (43 of 55, 78.2%). Conclusion: The use of K-DST should be encouraged, especially among children aged over 24 months. Multiple-choice question format for the additional questions is recommended to avoid confusion. We suggest a nationwide study to evaluate and revise the K-DST.

노인환자 스크리닝 결과와 낙상위험도 간의 관계 (Associations Between Classification of the Geriatric Screening for Care-10 and the Morse Fall Scale)

  • 김윤숙;이종민;최재경;신진영;한설희
    • 한국의료질향상학회지
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    • 제23권2호
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    • pp.69-78
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    • 2017
  • Background: The purpose of this study was to examine associations between classification of the Geriatric Screening for Care-10 (GSC-10) and the Morse Fall Scale (MFS) among elderly inpatients. Methods: Among elderly inpatients aged over 65 admitted to hospital (from November 1, 2016 to July 31, 2017), the data for 5,780 patients (who were evaluated using the Morse Fall Scale and the Geriatric Screening for Care-10) were analyzed using x2-tests and t-tests to examine differences between the GSC-10 and MFS, according to general characteristics of elderly inpatients (i.e., gender) using IBM SPSS Statistics 24. Results: : Scores for the GSC-10 were significantly higher in women than men for depression (p<.001), delirium (p=.048), functional decline (p<.001), incontinence (p<.001), and pain (p<.001). Statistically significant differences in all domains of the GSC-10 for elderly hospitalized patients were found for the classification of fall risk. Conclusion: The findings of this study, as supported by the GSC-10, indicate that the most common problems experienced by the elderly are related to the risk of falling. In order to reduce the incidence of falls in elderly inpatients, customized fall prevention based on the GSC-10 results is necessary.

TORCH (toxoplasmosis, rubella, cytomegalovirus, and herpes simplex virus) screening of small for gestational age and intrauterine growth restricted neonates: efficacy study in a single institute in Korea

  • Chung, Mi Hae;Shin, Chan Ok;Lee, Juyoung
    • Clinical and Experimental Pediatrics
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    • 제61권4호
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    • pp.114-120
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    • 2018
  • Purpose: Routine screening for toxoplasmosis, rubella, cytomegalovirus (CMV), and herpes simplex virus (TORCH) in intrauterine growth restriction (IUGR) and small for gestational age (SGA) neonates has become a common practice. However, the incidence of TORCH varies across countries, and the cost of TORCH testing may be disadvantageous compared to disease-specific screening. To evaluate the efficacy of TORCH screening, the medical charts of IUGR or SGA neonates born in a single institution in Bucheon, Korea from 2011 to 2015 were reviewed. Methods: The clinical data of the 126 IUGR or SGA neonates were gathered, including gestational age, Apgar scores, neonatal sonographic findings, chromosome study, morbidities, developmental follow-up, and growth catch-up. Maternal factors including underlying maternal disease and fetal sonography were collected, and placental findings were recorded when available. TORCH screening was done using serum IgM, CMV urine culture, quantification of CMV DNA with real-time polymerase chain reaction, and rapid plasma reagin qualitative test for syphilis. Tests were repeated only for those with positive results. Results: Of the 119 TORCH screenings, only one was positive for toxoplasmosis IgM. This result was deemed false positive due to negative IgM on repeated testing and the absence of clinical symptoms. Conclusion: Considering the incidence and risk of TORCH in Korea, the financial burden of TORCH screening, and the single positive TORCH finding in our study, we suggest disease-specific screening based on maternal history and the clinical symptoms of the neonate. Regarding CMV, which may present asymptomatically, universal screening may be appropriate upon cost-benefit analysis.

Preferences and Acceptance of Colorectal Cancer Screening in Thailand

  • Saengow, Udomsak;Chongsuwiwatvong, Virasakdi;Geater, Alan;Birch, Stephen
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권6호
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    • pp.2269-2276
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    • 2015
  • Colorectal cancer (CRC) is now common in Thailand with an increase in incidence over time. Health authorities are planning to implement a nationwide CRC screening program using fecal immunochemical test (FIT) as a primary screening tool. This study aimed to estimate preferences and acceptance of FIT and colonoscopy, explore factors influencing the acceptance, and investigate reasons behind choosing and rejecting to screen before the program was implemented. Patients aged 50-69, visiting the primary care unit during the study period, were invited to join this study. Patients with a history of cancer or past CRC screening were excluded. Face-to-face interviews were conducted. Subjects were informed about CRC and the screening tests: FIT and colonoscopy. Then, they were asked for their opinions regarding the screening. The total number of subjects was 437 (86.7% response rate). Fifty-eight percent were females. The median age was 58 years. FIT was accepted by 74.1% of subjects compared to 55.6% for colonoscopy. The acceptance of colonoscopy was associated with perceived susceptibility to CRC and family history of cancer. No symptoms, unwilling to screen, healthy, too busy and anxious about diagnosis were reasons for refusing to screen. FIT was preferred for its simplicity and non-invasiveness compared with colonoscopy. Those rejecting FIT expressed a strong preference for colonoscopy. Subjects chose colonoscopy because of its accuracy; it was refused for the process and complications. If the screening program is implemented for the entire target population in Thailand, we estimate that 106,546 will have a positive FIT, between 8,618 and 12,749 identified with advanced adenoma and between 2,645 and 3,912 identified with CRC in the first round of the program.