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排序方式: 共有448条查询结果,搜索用时 10 毫秒
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Coronary artery aneurysms may predispose to acute thrombosis, embolisation and myocardial ischaemia or rupture with subsequent tamponade and/or sudden death. The optimal therapy for patients with coronary artery aneurysm is unknown, and controversy persists regarding the use of medical or surgical modalities. There is no doubt that surgical therapy is reserved for cases with large aneurysms or with myocardial ischaemia due to significant associated coronary artery stenoses. We discuss here the surgical management of a case with coronary artery aneurysm and concomitant coronary artery disease. Although the beating heart technique of myocardial revascularisation and repair of coronary artery aneurysm without cardiopulmonary bypass is not suitable for all patients, it should be considered for those high-risk patients who have impaired left ventricular function or who are at high risk for pulmonary or neurological complications. 相似文献
447.
A total of 150 infertile couples underwent chromosome analysis and genetic
counselling before intracytoplasmic sperm injection (ICSI). Chromosomal
abnormalities, including low-level sex chromosome mosaicism, were detected
in 12% of the men and an unexpectedly high 6% of the women. Chromosomal
abnormalities included gonosomal mosaicism in 13 cases, Robertsonian
translocations in four males, autosomal reciprocal translocations in five
cases, reciprocal translocation involving a sex chromosome in one case,
inversions in three cases and a marker chromosome in one male. Chromosomal
variants found in 11 women and 13 men were not included in the above
percentages. Couples with a chromosomal aberration in one partner received
a second counselling. The different aspects of genetic counselling in these
couples are discussed. In conclusion, we recommend genetic counselling and
chromosomal analysis of men and women prior to ICSI therapy.
相似文献
448.
Gurdal Yilmaz Ahmet Mentese Selcuk Kaya Aysegul Uzun S. Caner Karahan Iftihar Koksal 《Journal of clinical virology》2011,50(3):209-211
BackgroundCrimean-Congo hemorrhagic fever (CCHF) is a potentially fatal disease caused by a tick-borne virus from the Bunyaviridae family. It has recently been reported that soluble urokinase-type plasminogen activator receptor (suPAR), secreted from endothelial cells and the mononuclear phagocyte system, one of the main targets of the CCHF virus, is a potential biomarker for several bacterial and viral infection diseases.ObjectivesThis study was intended to determine the diagnostic and prognostic significance of suPAR levels in CCHF.Study designThis retrospective study was conducted between June 2006 and August 2009 using plasma from patients monitored with a diagnosis of CCHF and from healthy blood donors. Levels of plasma suPAR were determined using an enzyme-linked immunosorbent assay (ELISA) kit according to the manufacturer's instructions.ResultsOne hundred CCHF patients were enrolled in the study. The control group was made up of 53 healthy blood donors. suPAR values of 6.2 ± 4.2 were determined in the CCHF patients and of 2.3 ± 0.6 in the control group (p < 0.0001). A suPAR level optimum diagnostic cut-off point of 3.06 ng/mL was determined, with an area underneath the ROC (AUROC) curve of 0.94 (95% CI: 0.89–0.97), sensitivity of 87% (95% CI: 79–93%), specificity of 92% (95% CI: 82–98%), PPV of 95% and NPV of 79%. Five of the patients died. suPAR was 18.4 ± 9.1 in the patients that died and 5.6 ± 2.6 in the survivors (p = 0.034). In terms of mortality, suPAR level had an optimum diagnostic cut-off point of 10.6 ng/mL, AUROC of 0.97 (95% CI: 0.94–0.99), sensitivity of 100% (95% CI: 48–100%), specificity of 96% (95% CI: 90–99%), PPV of 50% and NPV of 100%.ConclusionsPlasma suPAR level, a new biomarker, is a test that can be used in the differential diagnosis and monitoring of CCHF in patients admitted to hospital with suspected infection. The test is at the same time important in being a possible predictor of mortality. 相似文献