[EMG method in assessing diaphragmatic paralysis in a miner as an occupational disease]

A diaphragmatic palsy of a miner as an occupational accident happened during backdrawing pit props out of a low seam. For this trauma an excessive stretching of the spinal roots of the n. phrenicus with simultaneous presence of osteoarthrotic alterations in the area of the cervical vertebra was held responsible. The investigation of the cervical muscles on the side of palsy demonstrated a depressed activity corresponding to the radicular phrenicus palsy.