Statistics from Altmetric.com
In their report describing a case of hyperkalaemic paralysis associated with renal failure and use of spironolactone, Evers et al 1 provide an illustration of the results obtained from conduction studies performed on the patient’s median sensory nerve. Utilising the calibration markers, the average amplitude of the sensory action potential (SAP) measures 10.6 μV before haemodialysis and 27.2 μV afterward. However, these measurements are recorded in table 1 as being 20.0 μV and 24.0 μV, respectively.
An increase in SAP amplitude after normalisation of serum potassium concentration would offer additional support the authors’ suggestion that the pathological process causing weakness in secondary hyperkalaemic paralysis probably originates at the level of nerve rather than muscle.
The figures in table 1 were indeed incorrect and the correct figures from the original data are 8 μV before haemodialysis and 24 μV after haemodialysis.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.