Linus Nordgren

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A high adrenergic strain during reperfusion after ischemia impedes functional recovery. Conversely, adrenergic blockade may be beneficial during reperfusion. Negative inotropic effects may outweigh the expected benefit, however. Against this background hemodynamic and metabolic effects of early postoperative infusion with the beta 1-selective agent(More)
Continuous vectorcardiography was registered before and during the first 18 hours after cardiac surgery in 53 patients. QRS vector changes (QRS-VD) occurred during the operation, but no further changes were observed postoperatively. The ST vector (ST-VM) increased during the operation, and a further slight increase occurred postoperatively. Perioperative(More)
Seventeen patients (18 extremities) with primary deep venous insufficiency underwent femoral vein valve repair. Prior to the valvuloplasty the superficial and perforator systems were treated surgically. Dynamic venous pressure measurement and Doppler examination were done for late objective assessment of the valve repair. At early follow-up the(More)
This thesis analyses if the change of auditory feedback can improve the effectiveness of performance in the interaction with a non-visual system, or with a system used by individuals with visual impairment. Two prototypes were developed, one with binaural audio and the other with stereo audio. The interaction was evaluated in an experiment where 22(More)