Backflow of cerebrospinal fluid through a 25 gauge spinal needle after puncture of the arachnoid mater during initiation of spinal anaesthesia
August Bier
Schematic drawing showing the principles of spinal anaesthesia.
Cerebrospinal fluid flowing through a 25 gauge spinal needle during spinal anesthesia
Intravenous regional anesthesia

He was the first to perform spinal anesthesia and intravenous regional anesthesia.

- August Bier

The first planned spinal anaesthesia for surgery on a human was administered by August Bier (1861–1949) on 16 August 1898, in Kiel, when he injected 3 ml of 0.5% cocaine solution into a 34-year-old labourer.

- Spinal anaesthesia
Backflow of cerebrospinal fluid through a 25 gauge spinal needle after puncture of the arachnoid mater during initiation of spinal anaesthesia

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