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Audible signs to identify the epidural space
124 International Journal of Obstetric Anesthesia
Audible signs to identify the epidural space The reassuring hiss which your correspondent, Dr P. Swayne (October 1994; 3: 238), describes is always a welcome sign to the epiduralist. When Massey Dawkins reviewed methods of identifying the epidural space 1 he classified them under tactile, visual, mechanical and ancillary. In the latter section he wrote: 'Occasionally... a hiss can be heard when the indicator is removed from the hub of the needle'. This is the earliest reference I am aware o f relating to audible methods of identifying
the epidural space, and I trust that your readers might be interested in this little historical note. R Miller Consultant Anaesthetist
George Eliot Hospital College Street Nuneaton CVIO 7DZ UK Reference 1. Dawkins M. The identificationof the epidural space. Anaesthesia 1963; 18: 66-77.
Audible signs to identify the epidural space The reassuring hiss which your correspondent, Dr P. Swayne (October 1994; 3: 238), describes is always a welcome sign to the epiduralist. When Massey Dawkins reviewed methods of identifying the epidural space 1 he classified them under tactile, visual, mechanical and ancillary. In the latter section he wrote: 'Occasionally... a hiss can be heard when the indicator is removed from the hub of the needle'. This is the earliest reference I am aware o f relating to audible methods of identifying
the epidural space, and I trust that your readers might be interested in this little historical note. R Miller Consultant Anaesthetist
George Eliot Hospital College Street Nuneaton CVIO 7DZ UK Reference 1. Dawkins M. The identificationof the epidural space. Anaesthesia 1963; 18: 66-77.