To the Editor:—
It is with great interest that we read the article from Eichenberger et al. 1published in the February issue of Anesthesiology.
We congratulate the authors for providing another example of the clinical application of high-resolution sonography. However, the authors suggest that this is the only available technique for visualizing this nerve. This is not correct.
Our experience4–8with high-resolution sonography actually makes us believe in the claims by Eichenberger et al. 1But other methods may be equally useful, and additional studies are needed to validate this sonographic approach.