Fig. 3From: Microvascular decompression in trigeminal neuralgia with the offending artery transfixing the nerve: a case reportA The time that the offending artery was clipped was 11:27(thick arrow). B The electrophysiological monitoring showed a decrease in amplitude and gave two warnings to the operator (thin arrow). The clip was removed from the offending artery immediately, and the amplitude recovered in 7 min (arrow outline)Back to article page