Study and modeling of the thrombosis of small cerebral aneurysms, with and without flow diverter, by the lattice Boltzmann method.

Background And Objective: Small cerebral aneurysms are currently commonly treated non-invasively by flow diverter device. These stents lead to thrombotic occlusion of the aneurysm soon after their placement. The purpose of this work is to model clotting into intracranial aneurysms with and without stents, using a non-Newtonian of blood behavior, and to investigate the importance of stent to generate desired thrombus in intracranial aneurysms.

Evaluation of stent effect and thrombosis generation with different blood rheology on an intracranial aneurysm by the Lattice Boltzmann method.

Background And Objective: Treatment of intracranial aneurysms with flow-diverting stents prevents rupture by reducing blood flow and creating thrombosis within the aneurysm. This paper aims to assess the hemodynamic effect of placing stents with different struts (0, 3, 5, 7 struts) on intracranial aneurysms and to propose a simple prediction model of thrombosis zone without any further computational cost.

Method: Lattice Boltzmann method with different rheological models (Newtonian, Carreau-Yasuda, KL) of blood are used to study the hemodynamic effect of flow-diverting stents in the aneurysm.

A lower-cost protocol for sickle cell disease neonatal screening in Tunisia.

Background And Objectives: Sickle cell disease (SCD) is a group of hereditary chronic anemias that manifest essentially as painful crisis and susceptibility to infection. Neonatal screening is a preventive action that reduces the rates of mortality due to complications arising from infections by encouraging early prophylactic penicillin use and pneumococcal vaccination. The purpose of this pilot study was to set up a neonatal screening protocol at a lower cost than one that uses commercially available screening kits.

[Enecphalocele: 26 retrospective cases at the Maternal and Neonatal Center of La Rabta, Tunis].

Encephalocel is leff frequent than spina bifida and anencephalia. Its incidence is 0.25@1000 births.

[Fetal pathology aspects of 97 cases of anencephaly. CMNR Tunisian study].

So, the epidemiologic study done for 8 years at CMNR Tunis has shown that the incidence is 1.15@1000 births (between 0.52 and 1.