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排序方式: 共有62条查询结果,搜索用时 31 毫秒
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Trigui Aymen Rejab Haithem Akrout Amira Trabelsi Jihen Zouari Amine Majdoub Youssef Amar Mohamed Ben Mzali Rafik 《Lasers in medical science》2022,37(2):693-699
Lasers in Medical Science - Hemorrhoidal disease is a common reason for consultation in proctology. It can be treated in several ways (medical, endoscopic, and surgical). Laser treatment has been... 相似文献
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M. Haithem Babiker L. Fernando Gonzalez Felipe Albuquerque Daniel Collins Arius Elvikis David H. Frakes 《Annals of biomedical engineering》2010,38(7):2293-2301
Over the past 15 years, coil embolization has emerged as an effective treatment option for cerebral aneurysms that is far
less invasive than the long-standing convention of surgical clipping. However, aneurysm recurrence after coil embolization
is not uncommon: recurrence rates as high as 50% have been reported in the literature. One factor that may contribute to recurrence
after coiling is residual flow into the aneurysmal sac. At present, there is limited quantitative knowledge of the relationship
between coil packing density and aneurysmal inflow. We present an in vitro fluid dynamic study of basilar tip aneurysm models that elucidates this relationship. At physiologically normal flow rates,
we found that a packing density of 28.4% decreased aneurysmal inflow by 31.6% in a wide-neck model, and that a packing density
of 36.5% decreased aneurysmal inflow by 49.6% in a narrow-neck model. Results also indicated that coiling reduced aneurysmal
inflow more significantly at lower parent vessel flow rates, and that coiling reduced neck-plane velocity magnitudes more
significantly for narrow-neck aneurysms. Our study provides novel quantitative information that could ultimately contribute
to improved outcomes for patients with cerebral aneurysms by enabling more effective coil embolization. 相似文献
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Rachdi R Kaabi M M'Hamdi H Chtioui I Basly M Messaoudi F Zayene H Messaoudi L Chibani M Gaigi S 《La Tunisie médicale》2004,82(7):690-697
Potter's reno-facial syndrome is a rare innate abnormality. We bring 4 observations repertoried at the maternity of military hospital of Tunis over a period of 6 years (1997 - 2002). The purpose of our work is to determine after a review of the literature the echographic and foetopathologic characteristics, and the forecast of this syndrome. The frequency of the bilateral renale agenesis is of 0.27 per thousand. Positive diagnosis bases essentially on the ultrasound of the 2th, or the 3-th trimester. The signs of appeal are essentially the oligoamnios associated to an hypotrophy. The caryotype is systematic to eliminate an associeted chromosomic abnormality. Foetopathologic exam is usefull for the diagnosis. Main abnormality except the urinary pathology is the lung hypoplasia. Therapeutic interruption of the pregnancy in this situation not compatible with the extra-uterine life., only type IV authorize the development of the pregnancy according to echographic data and of foetal urinaire biochemistry. We insist on the early practice of the morphological ultrasound between 20 - 22 weeks for the diagnosis of foetal abnormalities and the place of the genetic advice in association with the geneticist in the coverage of the couple. 相似文献
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Procalcitonin (PCT), has been identified as a reliable marker of bacterial infection in critically ill patients. After cardiac surgery, infectious and non infectious inflammatory processes can cause a significant increase in PCT production. At present, literature data seem to confirm that repeated measurements of PCT are a better marker than other parameters, both as prognosis and diagnosis aid. Normal PCT levels are less than 0.1 ng/ml. PCT levels < 2ng/ml can be observed after extracorporeal circulation in case of systemic inflammatory response, in the absente of any post operative complication. However, bacterial infection with organ dysfunction should be suspected when PCT levels are higher 5 ng/ml. 相似文献
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Hamdouni Haithem Achour Ons Naija Salma Rejeb Jihène Aounallah Mariam Mhiri Mariem 《The International journal of neuroscience》2018,128(1):32-41
Purpose: Dementia is a multifactorial idiopathic pathology caused by clinical, eDementia is a multifactorial idiopathic pathology caused by clinical, environmental and genetic factors. Hence, its etiology is still unknown. We aimed to evaluate the association between five genetic risk factors for vascular diseases and dementia individually and when gathered in haplotypes. Materials and Method: We enrolled 200 dementia patients and 300 controls. All subjects were genotyped for vascular diseaseassociated polymorphisms in the genes coding for Apolipoprotein-E (ApoE), angiotensin converting enzyme (ACE) and Paraoxonase-1 (PON1). Results: The association between dementia risk and all the studied polymorphisms except of PON1-Q192R was found to be significant. Carrying the ApoE e4 allele seems to increase dementia risk by 4.32 fold (p = 0.001). The risk associated with ACE I and PON1-L55M T alleles were lower (2.58 and 2.11 fold, p < 0.001 and p = 0.015, respectively). When combined in haplotypes, these polymorphisms showed a cumulative and synergetic effect. GTICC haplotype appears to be associated with 9-fold dementia risk (p < 0.001), whereas AADTT seems to reduce dementia risk by 80% (p = 0.003). Conclusion: Our results suggest that, ApoE ε4, ACE I and PON1-L55M T alleles are associated with dementia risk whether these polymorphisms were studied separately or gathered in haplotypes. Still, the contribution of each gene to the pathophysiological development of dementia must be more investigated. 相似文献