No external funding and no competing interests declared. Previously posted on the Anaesthesia Correspondence website: http://www.anaesthesiacorrespondence.com.
iPhone for monitoring neuromuscular function
Article first published online: 11 APR 2012
Anaesthesia © 2012 The Association of Anaesthetists of Great Britain and Ireland
Volume 67, Issue 5, pages 552–553, May 2012
How to Cite
Langford, R. (2012), iPhone for monitoring neuromuscular function. Anaesthesia, 67: 552–553. doi: 10.1111/j.1365-2044.2012.07094_2.x
- Issue published online: 11 APR 2012
- Article first published online: 11 APR 2012
There are numerous mechanical and electronic devices available for the assessment of neuromuscular blockade, e.g. Myograph 2000 (Biometer International, Odense, Denmark) or TOFwatch (Schering-Plough, Kenilworth, USA). Although these devices are not available in all centres, a recent survey implies that it is usually not too hard to find an iPhone (Apple Inc, Cupertino, USA) in the operating theatres .
Other anaesthesia-related uses reported for the iPhone have included measurement of patient tilt in obstetric anaesthesia , a case logbook , a guide to resuscitation  and pharmacokinetic/dynamic modelling .
I would like to present yet another use of the iPhone for anaesthetists. The iPhone has an inbuilt accelerometer that can be used to monitor the effects of neuromuscular blocking agents (Fig. 5) through the use of a free ‘seismograph’ application (iSeismometer, Objectgraph LLC, NY, USA). This simple app can provide an objective, graphical representation of neuromuscular function, somewhat similar to commercially available devices. It is possible to illustrate ‘fade’ (Fig. 6) and then return of function (Fig. 7) following a ‘train of four’. In addition, this application allows easy demonstration of the recovery characteristics of neuromuscular blocking agents to our trainees.
- 3imobilemedic. iGasLog product description. http://www.imobilemedic.com/productDescription.php?prodID=1 (accessed 17/12/2011).
- 4A randomised control trial to determine if use of the iResus© application on a smart phone improves the performance of an advanced life support provider in a simulated medical emergency. Anaesthesia 2011; 66: 255–62., , , et al.
- 5Palma Healthcare. AnestAssist for iPad-iPhone-iPod. http://www.palmahealthcare.com/home/index.html (accessed 17/12/2011).