The Effects Of Different Intermittent Pneumatic Compression Model On Lower Limb Venous Haemodynamics

Objective To choose the most effective IPC model by comparing the lower limb haemodynamic change among six different IPC models. So find an instruction on the application of IPC in clinic.Method Thirty healthy volunteers were selected. The Haemodynamic parameters of the femoral vein including peak venous velocity, average venous velocity and unit time blood flow were measured during supine resting, then six different interventions including IPCfoot+calf+thigh,IPCcalf+thigh,IPCfoot+calf,IPCthigh,IPCcalf and IPCfoot were given. The haemodynamic parameters were measured under each intervention. Compare the haemodynamic effects of six different IPC model measured during supine resting and intervened time. Then compare each effect with others of every IPC model on haemodynamics.Result Compared with supine resting, the Haemodynamic parameters of the femoral vein including peak venous velocity, average venous velocity and unit time blood flow were all higher when intervened with IPC( P<0.01).Compare with each other in the six different intervened groups, the group that accepted mode IPCfoot+calf+thigh gained the best improved haemodynamic effect, which included the peak venous velocity, average venous velocity and unit time blood flow . And the effects of IPCcalf+thigh,IPCfoot+calf,IPCthigh,IPCcalf and IPCfoot were gradually decreased。There was no significant statistics difference between IPCfoot+calf and IPCthigh(p>0.05)。IPCfoot had the lowest efficacious haemodynamic effect in the six intervened groups, others all had higher haemodynamic parameters than IPCfoot ( P<0.01).Conclusions It was proved that all of the six IPC modes accelerated venous velocity and enhanced blood flow. And model IPCfoot+calf+thigh was the best one among them.