METHOD FOR PREDICTION OF TISSUE INJURY LEVEL IN LOCAL COLD INJURY III-IV DEGREE OF DISTAL SEGMENTS OF LOWER LIMBS Russian patent published in 2019 - IPC A61B5/04 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to surgery, and can be used for prediction of tissue injury level in local cold trauma of III-IV degree of distal segments of lower limbs. That is ensured by skin stimulation electroneuromyography of the affected limb with pulsed alternating current in range of 10–35 mA, duration of 200–300 ms. M-response amplitude, excitation propagation velocity, residual latency are determined and damage coefficient is calculated by formula: K=1.5-0.04×SEP-0.15×AMR+0.355×RL, where: SEP is excitation propagation speed (ms), AMR is M-response amplitude (mV), RL is residual latency (ms); 1.5 is a constant of the linear regression equation; 0.04, 0.15, 0.355 are coefficients of the linear regression equation. If K is less than 2, freezing at the level of toes is predicted. If K is 2 to 3, frostbite is predicted at the level of the fuselage-metatarsal joint. If K is more than 3, a total foot injury is predicted.

EFFECT: method provides accurate and early diagnosis of the given pathology.

1 cl, 1 tbl, 1 ex