Direct Electrostimulation and Hyperbaric Oxygenation in Surgical Treatment of Nerve-injured Patients
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چکیده
Dynamic nerve blood flow was studied using hydrogen clearance method (2,3). For this purpose a platinum microelectrode was implanted subepineurally during the operation using the operation microscope. The electrode was fixed to the epineurium with a thin thread and passed through a special hole onto the skin. An indifferent silver electrode was placed subcutaneously. Proximal ends of both the electrodes were left above the dressing. To study the nerve blood flow both the electrodes were joined to the polarograph. The patient inhaled the air mixed with hydrogen for 2 to 3 times. Hydrogen was moved towards the platinum electrode by blood flow, which was recorded by the polarograph as a rise of the curve. Tissue hydrogen clearance is ruled by the exponential law and determined by blood flow velocity. Using the nerve tissue hydrogen clearance curve, the nerve blood flow can be calculated as ml/min/100 g.
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