The A-V Impulse System reduces deep-vein thrombosis and swelling after hemiarthroplasty for hip fracture

Abstract

We performed a prospective randomised controlled trial of the A-V Impulse System in 82 patients treated by hemiarthroplasty for subcapital fracture of the femoral neck. The incidence of proximal deep-vein thrombosis as assessed by Doppler ulfrasonography was 23% in the control group and 0% in those using the device (p < 0.01). Calf and thigh circumferences were measured in both groups at seven to ten days after operation. In the treatment group there was a mean relative reduction of postoperative swelling of the thigh by 3.27 cm (p < 0.001) and of the calf by 1.55 cm (p < 0.001). The A-V Impulse System appears to be a safe and effective method of reducing the incidence of proximal deep-vein thrombosis, and of postoperative swelling.

Foot pump prophylaxis for deep venous thrombosis?rate of effective usage following knee and hip arthroplasty

“…They have been shown in prospective randomised control trials to be as equally effective in DVT prophylaxis as low-molecular-weight heparin and heparin following total knee and hip replacement [2,3,6,13]. They have also been shown to be as equally effective as anticoagulant agents in trauma patients [10,11]. Furthermore, as mechanical compression devices do not affect systemic coagulation mechanisms, they are associated with less surgical wound complications such as peri-operative wound drainage, excessive bleeding, and haematoma formation than pharmacological agents [13].…”

Acute Effects of Intermittent Pneumatic Compression on Popliteal Artery Blood Flow

“…These treatments have proven effective but are themselves associated with several complications that include embolization, infection, thrombosis, dissection, and limb loss. 2 Intermittent pneumatic compression has been widely used as a method for deep venous thrombosis prevention [3][4][5][6][7][8][9][10][11] and reduction of both lymphedema 3,[12][13][14] and venous ulcer healing times. [15][16][17][18] Its use has been investigated, but not established, for therapy in patients with intermittent claudication secondary to arterial occlusive disease.…”

Effects of Mechanical Pumping on the Arterial Pulse Wave Velocity: Peripheral Artery and Micro-Vessels

“…DISCUSSIONS Mechanical pumping devices using inflatable cuffs which squeeze the calf and thigh have been shown to be effective for reducing the incidence of proximal deep-vein thrombosis and post-traumatic swelling [8][9][10]. In our previous study, we found the arterial compliance, arterial flow, and venous flow changed in the upper extremity after a short period of impulse pumping [11].…”