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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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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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Pneumoblastoma]     
Pneumoblastoma is a rare malignant pulmonary tumor. A new case is reported in a 2 years 5 month-old girl. Because the lack of locoregional extension an isolated surgical excision was performed. However, 6 months later, a local relapse occurred, with inframediastinal extension and cerebral metastases. On the occasion of this case, the authors review the problems set by the histogenesis of this tumor, its therapeutic indications, poorly codified due to its rarity and, overall, its often unfavourable outcome.  相似文献   
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Background

Bilio-pancreatic ascariasis is the most frequent extra-intestinal localization of digestive ascariasis. Its diagnosis is generally made with ultrasonography and the therapeutic management is controlled by endoscopy.

Aim of study

We present a 24-year-old woman, with biliary ascariasis, operated by laparoscopy after failure of endoscopic treatment.

Observation

A 24-year-old woman was hospitalized for abdominal pain and fever. Abdominal ultrasound showed a common bile duct (VBP) dilated to 11 mm seat of a mobile serpiginous structure measuring 20 mm suggestive of an ascariasis. After failure of the extraction of the worm by endoscopic, treatment was laparoscopic surgery.

Conclusion

This case illustrates that the diagnosis of biliary ascariasis should be considered even in non-endemic countries. Endoscopic treatment was the reference. Surgery was indicated for failures of endoscopic treatment and association of ascariasis and common bile duct stones.  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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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   
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