An uncommon cause of massive haemothorax and treatment under cardiopulmonary bypass

Pulmonary sequestration is defined as nonfunctioning lung tissue that is not in normal continuity with the tracheobronchial tree and that has a systemic arterial blood supply. Herein, we aimed to present a case of a 34-year-old male patient who had massive left-sided haemothorax on admission due to a giant intralobar pulmonary sequestration. An emergent repair was performed under cardiopulmonary bypass with axillofemoral cannulation.

A Discrete Duality Finite Volume Method for Coupling Darcy and Stokes Equations

We present a general finite volume method to solve a coupled Stokes-Darcy problem, we propose two domains corresponding to fluid region and porous region with a physical intersection. At the contact interface between the fluid region and the porous media we impose two conditions; the first one is the normal continuity of the velocity and the second one is the continuity of the pressure. Furthermore, due to the lack of information about both the velocity and the pressure on the interface, we will use Schwarz domain decomposition. In Darcy equations, the tensor of permeability will be considered as variable, since it depends on both the properties of the porous medium and the viscosity of the fluid. Numerical examples are presented to demonstrate the efficiency of the proposed method.

Finite volume method for a coupled Stokes-Darcy problem

In this paper we propose a finite volume method to solve the coupled Stokes-Darcy problem using steady Stokes equations for the fluid region and Darcy equations for the porous region. At the contact interface between the fluid region and the porous media we imposed two conditions. The first one is the normal continuity of the velocity, while the second one is the continuity of the pressure. Furthermore, due to the lack of information about both the velocity and the pressure on the interface, we will use schwarz domain decomposition method. In Darcy equations, the tensor of permeability will be considered as variable, since it depends on both the prop- erties of the porous medium and the viscosity of the fluid. Numerical examples are presented to demonstrate the efficiency of the proposed method

Role of the small bowel in regulating food intake in rats

This study tested the hypothesis that exposure of the lower intestine to nutrients decreases subsequent food intake. Eight male Sprague-Dawley rats underwent jejunoileal bypass surgery with 8 cm of proximal jejunum anastomosed to 5 cm of terminal ileum in an end-to-side fashion. Eight control rats had sham bypass surgery with similar intestinal incisions that were reanastomosed in normal continuity. Another group of eight rats underwent ileal transposition (IT). A 10-cm segment of terminal ileum was transected, leaving the mesentery and blood supply intact, and transposed to the jejunum 8 cm from the ligament of Treitz. Thus total intestinal length was intact. Eight control rats had similar intestinal transections reanastomosed in normal continuity. A similar pattern of decreased food intake in the first 1-2 wk occurred in both bypass and IT rats. The values were significantly different from the respective sham surgery control groups. Body weights decreased, but the fall was greater in bypass rats. These data suggest that partially digested food in the lower intestine decreases food intake.