Effect of limb anesthesia on middle cerebral response to handgrip.

  title={Effect of limb anesthesia on middle cerebral response to handgrip.},
  author={Lone G M J\orgensen and Grazyna Perko and Gillian Payne and Niels H Secher},
  journal={The American journal of physiology},
  volume={264 2 Pt 2},
Transcranial Doppler ultrasound was used to measure middle cerebral arterial mean flow velocity (Vmean) on both sides of the brain in 12 subjects during hand contractions before and during regional anesthesia of the left arm. At rest Vmean was 49 (36-104) cm/s (median and range) and was unaffected by regional anesthesia. During right-hand contractions Vmean remained unchanged on the right side of the brain, whereas it increased 20 (4-37)% (P < 0.01) on the left side of the brain. Similarly… CONTINUE READING

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