• 제목/요약/키워드: prospective studies

검색결과 859건 처리시간 0.026초

디지털미디어자산관리시스템 사례분석에 관한 연구 (Case Study on Major Digital Media Asset Management Systems)

  • 정진택
    • 디지털콘텐츠학회 논문지
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    • 제9권2호
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    • pp.235-244
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    • 2008
  • 본 논문의 목적은 기존의 디지털자산관리시스템을 비교분석하여 적합한 실행모델을 개발하는데 있다. 본 연구 결과, 적합한 시스템은 아카이빙 서버, 처리 서버, 그리고 인터페이스 시스템으로 구성되는 것이 바람직하다. 이러한 연구결과를 바탕으로 국내실정에 맞는 신뢰성 있고 타당성 있는 디지털미디어자산관리시스템 구축모형을 제안하였다.

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국내 치매에 대한 한의치료 전향적 임상연구, 과제, 임상시험 프로토콜의 현황조사 (Scoping Review of Prospective Clinical Studies, Projects, and Clinical Study Protocol for Korean Medicine Treatment on Dementia)

  • 김제범;이동윤;하다정;권찬영
    • 대한한의학회지
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    • 제42권3호
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    • pp.99-118
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    • 2021
  • Objectives: The aim of this study is to review and analyze the trends in prospective clinical research (PCR), project, clinical study protocol of Korean medicine (KM) for dementia. Methods: We searched PCRs of KM on dementia in six electronical databases, up to January 28, 2021. Moreover, the clinical research protocol and projects of KM for dementia were searched. Results: Total eight PCRs, nine projects, and three clinical study protocols were included. In the PCRs, there were one randomized controlled trial, five before and after study, and two comparative group before-after studies. Four of them used herbal medicine, two used acupuncture, one study used both herbal medicine and acupuncture, and the other one used moxibustion. Jowiseungchung-tang was the most frequently used herbal medicine. BL62, KI6 were used in electro-acupuncture, auricular-Shenmen in auricular acupuncture, and GV20 in moxibustion. The most frequent outcome was Korean-Dementia Rating Scale (K-DRS). One reported significant increase in K-DRS score, one reported 60% improvement, and the other studies mostly reported no significant difference. In the projects including 20 clinical studies of dementia, herbal medicine, integrative medicine and acupuncture were mainly used. In the protocols, herbal medicine, complex KM intervention, and integrative medicine were used. Conclusions: Currently, the number of PCRs of KM for dementia is very scarce. Therefore, the researcher's interest in this field and national research support should be made more, and the quality of clinical research in the future can be further improved by supplementing the limitations of previously published clinical research.

소아에서 aminoglycoside의 1일 1회 요법 (Once daily dosing of aminoglycoside in children)

  • 신선희
    • Clinical and Experimental Pediatrics
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    • 제51권10호
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    • pp.1038-1041
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    • 2008
  • Aminoglycosides are frequently used antibiotics in children. The multiple daily dosing (MDD) in infants and children is twice or three times daily depending on age. Recent studies in adults have shown that once daily dosing (ODD) maximizes the bactericidal activity and might minimize the toxicity of antibiotics. So, I reviewed many studies about efficacy, toxicity and cost effectiveness of ODD of aminoglycosides in children. Most studies suggest that ODD compared with MDD of aminoglycosides is theoretically more efficacious and has no higher toxicity in infants and children. But, the total number of patients included in the studies is not large. Multi-center, controlled prospective studies are required in larger numbers of infants and children to determine the efficacy and safety of the ODD regimen in children before ODD of aminoglycosides can be recommended for routine use.

Postoperative Adjuvant Radiotherapy for Patients with Gastric Adenocarcinoma

  • Lim, Do Hoon
    • Journal of Gastric Cancer
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    • 제12권4호
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    • pp.205-209
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    • 2012
  • In gastric adenocarcinoma, high rates of loco-regional recurrences have been reported even after complete resection, and various studies have been tried to find the role of postoperative adjuvant therapy. Among them, Intergroup 0116 trial was a landmark trial, and demonstrated the definite survival benefit in adjuvant chemoradiotherapy, compared with surgery alone. However, the INT 0116 trial had major limitation for global acceptance of the INT 0116 regimen as an adjuvant treatment modality because of the limited lymph node dissection. Lately, several randomized studies that were performed to patients with D2-dissected gastric cancer were published. This review summarizes the data about patterns of failure after surgical resection and the earlier prospective studies, including INT 0116 study. Author will introduce the latest studies, including ARTIST trial and discuss whether external beam radiotherapy should be applied to patients receiving extended lymph node dissection and adjuvant chemotherapy.

다문화 아동의 학교적응 예측요인에 대한 체계적 문헌고찰 (Predictors of School Adjustment among Multicultural Children: Systematic Review)

  • 김동희
    • 한국학교보건학회지
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    • 제29권3호
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    • pp.156-166
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    • 2016
  • Purpose: The purpose of the study was to synthesize related studies and identify the predictors of school adjustment among multicultural children. Methods: The author searched Google Scholar, RISS, KISS, Naver Academic, NDSL, and the National Assembly Library databases from August 1 to August 8, 2016. Keywords included multicultural, adolescents, school life, and school adjustment. Results: Twenty two studies, from 3,645 screened references, were included and finally analyzed. All studies were prospective studies and used regression analysis. The predictors of school adjustment among multicultural children were children's personal factors and social factors. Children's personal factors consisted of general factors, psychosocial factors, and situational factors. Social factors consisted of parental factors, family factors, teacher factors, and peer factors. Conclusion: The findings suggest that consideration of social factors as well as personal factors of multicultural children, their family, teacher, and peers is needed to improve school adjustment of multicultural children.

헬리코박터 제균 치료와 위암 예방 (Helicobacter pylori Eradication Therapy and Gastric Cancer Prevention)

  • 최일주
    • 대한소화기학회지
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    • 제72권5호
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    • pp.245-251
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    • 2018
  • Gastric cancer is the most common cancer in Korea and the fifth most common cancer globally. Helicobacter pylori (H. pylori) infection is considered the main etiologic agent for gastric cancer development. Most regional guidelines for H. pylori treatment recommend treating the organism to prevent gastric cancer in the high-risk group. However, evidence that such a strategy can also be applied to the general population, especially in terms of the preventive effect and safety, has not been adequately presented yet. Although a meta-analysis in the general population suggested effectiveness in decreasing gastric cancer incidence, individual studies should be critically reviewed to evaluate the soundness of the evidence. Recently published, long-term, Korean studies on metachronous gastric cancer prevention ended the controversies from previous short-term studies and confirmed the effectiveness. Currently, further prospective, large, randomized studies are ongoing in the general population and will provide more definitive, high-level evidence on this gastric cancer prevention strategy in the next decade.

Surgical prevention of terminal neuroma and phantom limb pain: a literature review

  • Bogdasarian, Ronald N.;Cai, Steven B.;Tran, Bao Ngoc N.;Ignatiuk, Ashley;Lee, Edward S.
    • Archives of Plastic Surgery
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    • 제48권3호
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    • pp.310-322
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    • 2021
  • The incidence of extremity amputation is estimated at about 200,000 cases annually. Over 25% of patients suffer from terminal neuroma or phantom limb pain (TNPLP), resulting in pain, inability to wear a prosthetic device, and lost work. Once TNPLP develops, there is no definitive cure. Therefore, there has been an emerging focus on TNPLP prevention. We examined the current literature on TNPLP prevention in patients undergoing extremity amputation. A literature review was performed using Ovid Medline, Cochrane Collaboration Library, and Google Scholar to identify all original studies that addressed surgical prophylaxis against TNPLP. The search was conducted using both Medical Subject Headings and free-text using the terms "phantom limb pain," "amputation neuroma," and "surgical prevention of amputation neuroma." Fifteen studies met the inclusion criteria, including six prospective trials, two comprehensive literature reviews, four retrospective chart reviews, and three case series/technique reviews. Five techniques were identified, and each was incorporated into a targetbased classification system. A small but growing body of literature exists regarding the surgical prevention of TNPLP. Targeted muscle reinnervation (TMR), a form of physiologic target reassignment, has the greatest momentum in the academic surgical community, with multiple recent prospective studies demonstrating superior prevention of TNPLP. Neurorrhaphy and transposition with implantation are supported by less robust evidence, but merit future study as alternatives to TMR.

Sinus floor elevation and simultaneous implant placement in fresh extraction sockets: a systematic review of clinical data

  • Ekhlasmandkermani, Mehdi;Amid, Reza;Kadkhodazadeh, Mahdi;Hajizadeh, Farhad;Abed, Pooria Fallah;Kheiri, Lida;Kheiri, Aida
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제47권6호
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    • pp.411-426
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    • 2021
  • Combining different procedures to reduce the number of surgical sessions and patient discomfort in implant placement and sinus floor elevation has been recommended, and evidence supports good outcomes. The aim of this study was to review the results of clinical studies on sinus floor elevation through extraction sockets and simultaneous immediate posterior implant placement. An electronic search was carried out in PubMed, Scopus, and Web of Science to find English articles published in or before August 2020. A manual search was also performed. Titles, abstracts, and the full-text of the retrieved articles were studied. Thirteen studies met our eligibility criteria: 6 retrospective case series, 3 case reports, 2 prospective cohort case-series, 1 prospective case series, and 1 randomized controlled trial. Overall, 306 implants were placed; 2 studies reported implant survival rates of 91.7% and 98.57%. The others either did not report the survival rate or reported 100% survival. Sinus floor elevation through a fresh extraction socket and simultaneous immediate implant placement appears to be a predictable modality with a high success rate. However, proper case selection and the expertise of the clinician play fundamental roles in the success of such complex procedures.

Are Accuracy Studies for Periprosthetic Joint Infection Diagnosis Inherently Flawed? And What to Do with Schrödinger's Hips? A Prospective Analysis of the Alpha Defensin Lateral-Flow Test in Chronic Painful Hip Arthroplasties

  • Jesse W.P. Kuiper;Steven J. Verberne;Pim W. van Egmond;Karin Slot;Olivier P.P. Temmerman;Constantijn J. Vos
    • Hip & pelvis
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    • 제34권4호
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    • pp.236-244
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    • 2022
  • Purpose: The most recent diagnostic criteria for periprosthetic joint infection (PJI) include the use of the alpha-defensin (AD) lateral-flow (LF) test, but hip and knee arthroplasties were usually combined in previous studies. This prospective study was designed to examine the accuracy of the AD-LF test for diagnosis of PJI in chronic painful total hip arthroplasties (THA). Materials and Methods: Patients with chronic painful hip arthroplasties were prospectively enrolled between March 2018 and May 2020. Exclusion criteria included acute PJI or an insufficient amount of synovial fluid. The modified Musculoskeletal Infection Society (MSIS) criteria were primarily used for PJI diagnosis. Fifty-seven patients were included in the analysis group. Revision surgery was not performed in 38 patients, for different reasons (clinical group); these patients remain "Schrödinger's hips": in such cases PJI cannot be excluded nor confirmed until you "open the box". Results: The result of the AD-LF test was positive in nine patients and negative in 48 patients. Six patients were diagnosed with PJI. AD-LF sensitivity (MSIS criteria) was 83% (95% confidence interval [CI] 36-100%) and specificity was 92% (95% CI 81-98%). The positive and negative predictive value were 56% and 98%, respectively. Conclusion: The AD test is useful in addition to the existing arsenal of diagnostic tools, and can be helpful in the decision-making process. Not all patients with chronical painful THA will undergo revision surgery. Consequently, in order to determine the reliable diagnostic accuracy of this test, future PJI diagnostic studies should include a second arm of "Schrödinger's hips".

농업인을 대상으로 한 운동프로그램 관련 국내 임상연구에 대한 체계적 문헌고찰 (Domestic Clinical Studies Related to the Exercise Program Targeting Farmers : a Systematic Review)

  • 국길호;이은정;오민석
    • 한방재활의학과학회지
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    • 제21권4호
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    • pp.77-86
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    • 2011
  • Objectives: This study aims to evaluate domestic clinical studies related to the exercise program targeting farmers. Methods: Five Korean databases were seamed for prospective clinical trials of exercise program targeting farmers from 2001 to August, 2011. Only studies conducted in Korean language were searched. Results: Thirteen clinical studies were included among 3374 studies searched. Six were observational studies, four were non-randomized controlled trials, and three were randomized controlled trials. All of included studies reported favorable effects of exercise group compared to baseline of controlled group. Conclusions: We found various mistake in the applications of statistical methodologies in the studies of exercise program targeting farmers. It is necessary for more randomized controlled trials to evaluate effect of exercise program target farmers.