Flow Patterns at Stented Coronary Bifurcations

Flow Patterns at Stented Coronary Bifurcations

Coronary bifurcations remain one of the most challenging lesion subsets, even in the era of drug-eluting stents. Single stent implantation in the main vessel with provisional stenting to the side branch vessel has been found superior to double stenting and is considered the default approach in most coronary bifurcation lesions. However, in true bifurcation lesions, this provisional approach may...

Flow patterns at stented coronary bifurcations: computational fluid dynamics analysis.

BACKGROUND The ideal bifurcation stenting technique is not established, and data on the hemodynamic characteristics at stented bifurcations are limited. METHODS AND RESULTS We used computational fluid dynamics analysis to assess hemodynamic parameters known affect the risk of restenosis and thrombosis at coronary bifurcations after the use of various single- and double-stenting techniques. We...

flow patterns at right-angled lateral intakes

the hydrodynamic behavior of approaching flow and the amount of sediment entry into right-angled lateral intakes in diversion dams were investigated using a laboratory channel by experimental measurement and observation. the velocity field upstream of the intake in the main channel and before it at the sluice gate was measured at different elevations of flow at different discharge rates of the ...

Flow dynamics in a stented ureter.

Vesicorenal reflux is a major side effect associated with ureteric stent placement. In a stented upper urinary tract when the bladder pressure rises, such as during bladder spasms (due to irritation caused by the stent) or voiding of the bladder, it drives urine reflux up the ureter, which, in turn, may be a contributory factor for infections in the renal pelvis. We develop a mathematical model...

Flow Patterns in Externally Stented Saphenous Vein Grafts as Related to the Development of Intimal Hyperplasia