• 제목/요약/키워드: partial duration series

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Clinical experience in managing temporomandibular joint ankylosis: five-year appraisal in a Nigerian subpopulation

  • Braimah, Ramat;Taiwo, Abdurrazaq;Ibikunle, Adebayo;Oladejo, Taoreed;Adeyemi, Mike;Adejobi, Francis;Abubakar, Siddiq
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제44권3호
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    • pp.112-119
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    • 2018
  • Objectives: Temporomandibular joint ankylosis (TMJA) is a joint pathology caused by bony and/or fibrous adhesion of the joint apparatus, resulting in partial or total loss of function. Materials and Methods: This is a retrospective study conducted between 2012 and 2016 in the northwest region of Nigeria. The data retrieved includes gender, age, etiology of ankylosis, duration of ankylosis, laterality of ankylosis, type of imaging technique, type of airway management, types of incision, surgical procedure, mouth opening, interpositional materials used, and complications. Results were presented as simple frequencies and descriptive statistics. Results: Thirty-six patients with TMJA were evaluated during the study period. There were 21 males (58.3%) and 15 females (41.7%), yielding a male:female ratio of 1.4:1. The patients' age ranged from 5 to 33 years with $mean{\pm}standard$ deviation ($13.8{\pm}6.6years$). Thirty-five cases (97.2%) were determined to be true/bony ankylosis, while only 1 case (2.8%) was false/fibrous ankylosis. Most of the TMJA cases (16 cases, 44.4%) were secondary to a fall. In our series, the most commonly utilized incision was the Bramley-Al-Kayat (15 cases, 41.7%). The mostly commonly performed procedures were condylectomies and upper ramus ostectomies (12 cases each, 33.3%), while the most commonly used interpositional material was temporalis fascia (14 cases, 38.9%). The complications that developed included 4 cases (11.1%) of severe hemorrhage, 1 case (2.8%) of facial nerve palsy, and 1 case (2.8%) of re-ankylosis. Conclusion: Plain radiographs, with their shortcomings, still have significant roles in investigating TMJA. Aggressive postoperative physiotherapy for a minimum of 6 months is paramount for successful treatment.

돌발적난청 (Sudden Deafness)

  • 조중환;류태현
    • 대한기관식도과학회:학술대회논문집
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    • 대한기관식도과학회 1976년도 제10차 학술대회연제 순서 및 초록
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    • pp.85.3-86
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    • 1976
  • 돌발성난청은 만약청력이 구조될 가망이 있으면 즉각적인 검사와 치료가 필요하다. 이것은 이과적 비상사태이며 또 진단의 도전자이다. 감각신경성돌발성난청은 광범위한 종류의 병인으로 생길 수 있다. 종합적인 정밀검사를 곧 시행하여 치료를 지체없이 시작해야만 될 것이다. 감각신경성난청환자에 대해서 아무것도 할 것 없다는 관념은 버려야 되겠다. 돌발성난청을 일으키는 어떤 병인은 치료에 순응 않거나 또는 다만 일부만 정상회복이 가능하다. 그러나 그냥 두면 조금은 회복되거나 또는 스스로는 전연 회복되지 않고, 적절한 치료에는 반응하는 병인들도 있다. 이 병인들을 확인하여 그 처치에 대하며 전심 연구하는 것은 긴요하다. 연령 성별의 비율 및 병변의 편측 또는 양측성은 그 원인에 관련되며, 모은 환자군의 형에 의해서 다르다. 돌발성난청은 개별적으로는 드므나, 모이면 흔한데 외래신이과환자의 약 2.5%에 이르렀으며, 약 70%는 편측성이였다. virus, 세균 및 treponema 감염성은 약 30%였고, 약 16%는 cochlea의 혈관성병변에 의해서였다. 거의 22%는 원인불명(idiopathic)으로 이것은 청년층에서 주로 발생하였으며, 감각성이거나 신경성이였다. 12%는 외상성이고, 9%는 이중독성이였다. 기타가 11%였다. 이대중요요소는 병변의 부위와 청력장해의 기간인데 일찍 진단하여 치료하면 그만큼 치료반응이 좋다. 동시에 원인, 병리 및 치료에 대한 고찰을 더 하였다.

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기무라씨 질환, 5 예 보고 (REPORT OF EXPERIENCE WITH KIMURA'S DISEASE)

  • 설대위;박윤규;이광민
    • 대한두경부종양학회지
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    • 제5권1호
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    • pp.39-46
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    • 1989
  • 기무라씨 질환은 특히 두경부 부위에 피하 종괴를 일으키는 만성염증성, 증식성 질환이다. 저자들은 최근 치험하였던 본 질환 5 예를 한국외과 문헌에 처음으로 보고하는 바이다. 기무라씨 질환은 크게는 ALHE(Angiolymphoide Hyperplasia with Eosinophilia) 의 범주에 속한다. 본 질환의 병리학적 특징은 증식된 lymphoid follicles, eosinophilic infiltration 과 혈관의 증식성이다. 이 질환은 이하선, 악하선 및 상부 경부 부위등에 흔히 종괴를 일으키며 이들 종괴들은 피하조직 뿐만 아니라 타액선과 상부 경부 임파선에까지도 파고 든다. 저자들의 증례 중 한명에서는 서혜부에 종괴가 있었으며 새로이 증식된 혈관과 동상들 (Sinusoids) 로 인하여 혈관 분포가 매우 풍부하였다. 저자들 증례 5 명의 평균 연령은 35세이었지만 한명을 제외한 나머지 모두는 38세 이하이었다. 남녀비는 3:2 이었으며 증상의 평균 기간은 5.2 년이었다. 전례에 있어서 말초 혈액 소견상 Eosinophilia 가 있었다. 전례에서 다발성 종괴들을 보였으며 가끔은 대칭적이기도 하였다. 저자들이 시행한 치료 양상은 수술만 시행한 경우와 수술 및 스테로이드 홀몬요법 시행 경우가 각각 1례씩이었고 수술과 방사선조사 경우가 2례이었으며 나머지 1례에서는 수술, 스테로이드 홀몬요법 및 방사선조사의 복합치료를 실시하였다. 저자들은 기무라씨 질환과 ALHE 질환과의 관계를 고찰해 보았으며 기무라씨 질환의 치료 경험을 보고하는 바이다.

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정보시스템의 지속적 사용에서 경험의 역할에 대한 분석 (An Analysis of the Roles of Experience in Information System Continuance)

  • 이웅규
    • Asia pacific journal of information systems
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    • 제21권4호
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    • pp.45-62
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    • 2011
  • The notion of information systems (IS) continuance has recently emerged as one of the most important research issues in the field of IS. A great deal of research has been conducted thus far on the basis of theories adapted from various disciplines including consumer behaviors and social psychology, in addition to theories regarding information technology (IT) acceptance. This previous body of knowledge provides a robust research framework that can already account for the determination of IS continuance; however, this research points to other, thus-far-unelucidated determinant factors such as habit, which were not included in traditional IT acceptance frameworks, and also re-emphasizes the importance of emotion-related constructs such as satisfaction in addition to conscious intention with rational beliefs such as usefulness. Experiences should also be considered one of the most important factors determining the characteristics of information system (IS) continuance and the features distinct from those determining IS acceptance, because more experienced users may have more opportunities for IS use, which would allow them more frequent use than would be available to less experienced or non-experienced users. Interestingly, experience has dual features that may contradictorily influence IS use. On one hand, attitudes predicated on direct experience have been shown to predict behavior better than attitudes from indirect experience or without experience; as more information is available, direct experience may render IS use a more salient behavior, and may also make IS use more accessible via memory. Therefore, experience may serve to intensify the relationship between IS use and conscious intention with evaluations, On the other hand, experience may culminate in the formation of habits: greater experience may also imply more frequent performance of the behavior, which may lead to the formation of habits, Hence, like experience, users' activation of an IS may be more dependent on habit-that is, unconscious automatic use without deliberation regarding the IS-and less dependent on conscious intentions, Furthermore, experiences can provide basic information necessary for satisfaction with the use of a specific IS, thus spurring the formation of both conscious intentions and unconscious habits, Whereas IT adoption Is a one-time decision, IS continuance may be a series of users' decisions and evaluations based on satisfaction with IS use. Moreover. habits also cannot be formed without satisfaction, even when a behavior is carried out repeatedly. Thus, experiences also play a critical role in satisfaction, as satisfaction is the consequence of direct experiences of actual behaviors. In particular, emotional experiences such as enjoyment can become as influential on IS use as are utilitarian experiences such as usefulness; this is especially true in light of the modern increase in membership-based hedonic systems - including online games, web-based social network services (SNS), blogs, and portals-all of which attempt to provide users with self-fulfilling value. Therefore, in order to understand more clearly the role of experiences in IS continuance, analysis must be conducted under a research framework that includes intentions, habits, and satisfaction, as experience may not only have duration-based moderating effects on the relationship between both intention and habit and the activation of IS use, but may also have content-based positive effects on satisfaction. This is consistent with the basic assumptions regarding the determining factors in IS continuance as suggested by Oritz de Guinea and Markus: consciousness, emotion, and habit. The principal objective of this study was to explore and assess the effects of experiences in IS continuance, with special consideration given to conscious intentions and unconscious habits, as well as satisfaction. IN service of this goal, along with a review of the relevant literature regarding the effects of experiences and habit on continuous IS use, this study suggested a research model that represents the roles of experience: its moderating role in the relationships of IS continuance with both conscious intention and unconscious habit, and its antecedent role in the development of satisfaction. For the validation of this research model. Korean university student users of 'Cyworld', one of the most influential social network services in South Korea, were surveyed, and the data were analyzed via partial least square (PLS) analysis to assess the implications of this study. In result most hypotheses in our research model were statistically supported with the exception of one. Although one hypothesis was not supported, the study's findings provide us with some important implications. First the role of experience in IS continuance differs from its role in IS acceptance. Second, the use of IS was explained by the dynamic balance between habit and intention. Third, the importance of satisfaction was confirmed from the perspective of IS continuance with experience.