Nerve Conduction Studies

Perineural meperidine blocks nerve conduction in a dose‐related manner: a randomized double‐blind study

“…The main differences between our study and that of Flanagan et al's 13 are as follows: excessive median nerve stimulation at intensities up to 100 mA may lead to inadvertent ‘cross‐stimulation’ of the ulnar nerve, 16 resulting in activation of the thenar muscles (adductor pollicis and deep head of flexor pollicis brevis). This ulnar nerve‐mediated response is difficult to differentiate from the median nerve‐mediated contraction of muscles (abductor pollicis brevis, opponens pollicis and superficial head of flexor pollicis brevis).…”

“…The effects of local anaesthetics on peripheral nerve conduction have been tested more frequently on the ulnar nerve 14,15 . It is possible to record potentials from the hypothenar muscles with less interference originating from the muscles that are innervated by the median nerve 16 . Because of this interference, the ulnar nerve seems to be a more appropriate choice than the median nerve.…”

Development of a nerve conduction technique for the recurrent laryngeal nerve

“…In our study, the mean latency was 1.98 ms, and the standard deviation was 0.26 ms. The mean radial and ulnar motor latencies are 2.4 ms and 3.2 ms and their standard deviations are 0.5 ms and 0.5 ms, respectively; therefore, the coefficients of variation are 0.2 and 0.16, respectively. These coefficients of variation are greater than the coefficient of variation in our study (0.13), which means that the data of the recurrent laryngeal nerve latency show a lesser degree of variation than those of the radial and ulnar motor latencies …”

Dermatomal somatosensory evoked potentials in the diagnosis of patients with lumbosacral radiculopathies

“…Motor conduction examinations: Motor conduction examinations were performed at 5 millivolt (mV) sensitivity, 50 millisecond (ms) seep rate, and 3 hertz (Hz) -5 kilohertz (kHz) filtration range. The tibial nerve was evoked from the wrist and the popliteal region and recordings were made from the abductor hallucis (AH) muscle, while the peroneal nerve was evoked from the wrist, the head of fibula (caput fibulae), and the popliteal region, and recordings were made from the extensor digitorum brevis muscle, assessing the motor conduction examinations via standard methods (7)(8)(9). The initial latencies, compound muscle action potential (CMAP) amplitudes, and motor conduction speeds of the results were evaluated.…”

“…Sensory conduction examinations were performed at 20 microvolt (µV) sensitivity, 10ms sweep speed, and 20Hz-2kHz filtration range. Sural and superficial peroneal nerves were evoked from the leg and the recordings were made from the external malleolus and 1/3 outer side of the wrist, respectively, to be evaluated antidromically via standard methods (7)(8)(9). The initial and peak latencies, somatosensory action potential (SEP) amplitudes, and sensory conduction speeds of the results were evaluated.…”