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排序方式: 共有352条查询结果,搜索用时 15 毫秒
1.
PURPOSE: The beneficial role of elective neck dissection (END) in the management of high-risk cutaneous squamous cell carcinoma (CSCC) of the head and neck remains unproven. Some surgical specialists suggest that END may be beneficial for patients with clinically node-negative (N0) high-risk CSCC, but there are few data to support this claim. We reviewed the available literature regarding the use of END in the management of both CSCC and head and neck SCC (HNSCC). METHODOLOGY: The available medical literature pertaining to END in both CSCC and HNSCC was reviewed using PubMed and Ovid Medline searches. RESULTS: Many surgical specialists recommend that END be routinely performed in patients with N0 HNSCC when the risk of occult metastases is estimated to exceed 20%; however, patients who undergo END have no proven survival benefit over those who are initially staged as N0 and undergo therapeutic neck dissection (TND) after the development of apparent regional disease. There is a lack of data regarding the proper management of regional nodal basins in patients with N0 CSCC. In the absence of evidence-based data, the cutaneous surgeon must rely on clinical judgment to guide the management of patients with N0 high-risk CSCC of the head and neck. CONCLUSIONS: Appropriate work-up for occult nodal disease may occasionally be warranted in patients with high-risk CSCC. END may play a role in only a very limited number of patients with high-risk CSCC. 相似文献
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P.A. GARA P. MARTINEZ L. SANCHEZ R. VILLUENDAS J.L. ORRADRE H. OLIVA M.A. PIRIS 《Histopathology》1991,19(1):69-76
Hodin's disease, lymphocyte predominance type (nodular paragranuloma), is of germinal centre origin and the tumours cells have a B-cell phenotype. As the t(14;18) translocation, and the subsequent expression of bcl-2 protein by germinal centre cells, is the most characteristic finding of centroblastic-centrocytic lymphoma, we have tested a series of 11 cases of lymphocyte predominance Hodgkin's disease, using Southern blot analysis for the major breakpoint region and the minor breakpoint cluster region, polymerase chain reaction with primers for the major and minor breakpoint cluster region, and immunohistological studies with a monoclonal antibody specific for the bcl-2 protein. All three techniques gave negative results in the cases of Hodgkin's disease, establishing a clear differentiation from centroblastic-centrocytic lymphoma. These findings are useful in the differential diagnosis between the two entities and raise the question of the non-clonal nature of lymphocyte predominance Hodgkin's disease. 相似文献
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ARMANDO E. SOTO‐ROJAS MAURICIO ESCOFFIÉ‐RAMÍREZ GLORIANA PÉREZ‐FERRERA JOSEPH A. GUIDO ANDRES A. MANTILLA‐RODRIGUEZ ESPERANZA A. MARTINEZ‐MIER 《International journal of paediatric dentistry / the British Paedodontic Society [and] the International Association of Dentistry for Children》2012,22(6):451-458
International Journal of Paediatric Dentistry 2012; 22: 451–458 Background. Dental sealants are an effective treatment for the prevention and management of caries. Objective. To determine the retention of sealants placed in a rural setting in Mexico as part of an international service‐learning (ISL) programme and to determine associations between dental sealant’s retention and caries diagnosis at the time of sealant placement. Methods. Children aged 6–15 were examined for dental caries, received sealants by dental students as part of an ISL programme, and were re‐examined 4, 2, or 1 years after placement to assess sealant survival. Sealants were placed on permanent sound surfaces and enamel caries lesions [International Caries Assessment and Detection System (ICDAS) criteria]. Sealant survival was explored using Cochran–Mantel–Haenszel tests and multivariate prediction models. Results. 219 (46%) of 478 (mean age = 10.53 SD = 5.11) children who had received sealants returned for a recall examination (mean age = 10.89 SD = 3.11). After 1–4 years, 96.4% to 60.6% of the sealants placed on sound teeth had survived, and for sealants placed on surfaces with enamel caries lesions (ICDAS 1–3), 94.2% to 55.6% had survived. Differences were not statistically significant. Conclusions. Sealants had survival rates comparable to those previously reported in the literature. Sealants placed on sound and enamel caries lesions had similar survival rates. 相似文献
4.
JOHN R. JORDAN JOHN BAKER MARGHERITE MATTEIS SAUL ROSENTHAL EUGENIA S. WARE 《Death Studies》2013,37(4):301-332
ABSTRACT This article describes the development of the Grief Evaluation Measure (GEM), a new instrument designed to screen for the development of a complicated mourning response in a bereaved adult. The GEM provides a quantitative and qualitative assessment of risk factors, including the mourner's loss and medical history, coping resources before and after the death, and circumstances surrounding the death. It is designed to provide an in-depth evaluation of the bereaved adult's subjective grief experience and associated symptoms. Reliability and validity studies were conducted with two samples of bereaved adults (n = 23 and n = 92, respectively) from various clinical and support settings. Data on the two central sections of the GEM that assess the mourner's grief response and the level of symptomatology are described. Results indicate that the GEM's internal consistency and test–retest reliability are high. The GEM demonstrates good concurrent validity for established measures of bereavement, trauma, and physical and psychiatric symptoms, and good predictive validity for mourner adjustment one year after initial assessment. Plans for future development and an invitation for other researchers to collaborate with research on the GEM are also discussed. 相似文献
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PETRIDOU ELENI; TRICHOPOULOS DIMITRIOS; TONG DONALD; REVINTHI KATHARINE; TSITSIKA ARTEMIS; PAPATHOMA EUGENIA; ARAVANTINOS DIONYSIOS 《European journal of public health》1996,6(3):159-165
In order to ascertain correlates of gestational age and predictorsof prematurity, all the mothers delivered in 1993 at the maternityclinic of the First University Department of Obstetrics andGynaecology and at one division of a private maternity hospitalin Athens, Greece, were interviewed. From a total of 3,770 deliveries,those involving multiple pregnancies or Caesarean deliverieswere excluded, as were pregnancies with an apparent durationof less than 150 or more than 300 days. The analysis was eventuallybased on 2,538 singleton deliveries. The duration of gestationwas modelled as an outcome variable through multiple regression.The following factors were found to be significantly (p<0.05)related to the duration of gestation: maternal education, +0.8day per 3 schooling years; family integrity, single comparedto currently married mother, 3.7 days; parity, muttiparous(4+ births) compared to primiparae, +2.8 days; age at menarche,+1.8 days per 2 years; maternal age, +3.9 days for younger than20 years and 1.7 days for older than 30 years in comparisonto women 2029 years old; maternal weight before pregnancy,+0.4 day per 5 kg; coffee drinking, +0.7 day per cup per day;tobacco smoking, 1.8 days per 0.5 pack per day. Bleedingduring any trimester of pregnancy and maternal diabetes weresignificantly associated with shorter duration of gestationby 6.7 and 8.2 days respectively. The constellation of riskfactors for a pre-term delivery in Greece appears similar tothat in other populations. However, a positive association betweencoffee drinking and duration of pregnancy has not always beendemonstrated in other studies and the longer duration of pregnancyamong very young women represents an unusual finding. At therange of variation under investigation the individual factorsare not powerful predictors but their combination could identifywomen at high risk for prematurity. 相似文献
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Immune tolerance induction with mycophenolate-mofetil in two children with haemophilia B and inhibitor 总被引:1,自引:1,他引:0
D. KLARMANN I. MARTINEZ Saguer M. B. FUNK R. KNOEFLER† N. VON HENTIG‡ C. HELLER W. KREUZ 《Haemophilia》2008,14(1):44-49
Summary. Immune tolerance induction (ITI) in haemophilia B patients with inhibitor should be carefully considered because of the relatively poor (25%) overall success rate and the high risk of complications. ITI in combination with an immunosuppressive treatment was started in two children with haemophilia B with factor IX (FIX) inhibitor. To avoid anaphylactic reactions and inhibitor boost, the FIX replacement therapy was stopped and patients received a treatment with recombinant activated factor VII (rFVIIa). After disappearance of FIX inhibitor, a combination of mycophenolate-mofetil (MMF), dexamethasone (DEXA) and intravenous immunoglobulin (IVIG) and a high dose FIX replacement therapy was started. Immune tolerance could be induced in patient 2, whereas eradication of FIX inhibitor was incomplete in patient 1. Both patients benefited from the immune suppressive treatment and FIX replacement therapy was tolerated without any allergic complications. Neither development of a nephrotic syndrome nor a severe bleeding episode was observed. Strategies to induce tolerance in haemophilia B patients with inhibitors need to be explored in a systematic way. Given the low frequency of disease and even lower incidence of inhibitors, prospective randomized studies may not be possible. International registry-based retrospective and prospective data collection could play the key role in the study of the outcome variables in ITI for haemophilia B. 相似文献
10.
Parent–child communication and adolescent self-esteem in separated, intercountry adoptive and intact non-adoptive families 总被引:1,自引:0,他引:1
MARGHERITA LANZ RAFFAELLA IAFRATE ROSA ROSNATI EUGENIA SCABINI 《Journal of adolescence》1999,22(6):785
The purpose of the present study was to verify whether there are some differences in parent–child communication and in adolescent self-esteem among adoptive, separated and intact non-adoptive families and to investigate the extent to which parent–child communication is related to adolescent self-esteem in the three types of families. The study sample was composed of 450 adolescents aged between 11 and 17 years (160 from intact non-adoptive families, 140 from separated or divorced families and 150 from intercountry adoptive families). Subjects completed the Parent–Adolescent Communication Scale by Barnes and Olson, the Rosenberg Self-esteem Scale and some socio-demographic items. The results show that adolescents from separated families have more difficulties in their relationships with both the mother and the father than their peers, and that adoptive children perceive a more positive communication with their parents than biological children. Moreover, adoptees showed lower self-esteem than the other two groups of adolescents. Lastly, it emerged that male and female adolescents' self-esteem is related to positive communication with both parents in intact non-adoptive families, while no link was significant for male and female children of divorced parents or for adoptees. 相似文献