Mark J. Polak, MD

We heard from several readers about a Photo Essay we recently published in our February issue entitled "The Butterfly Technique: A New Method of Inserting an Umbilical Vessel Catheter."1 The authors, Lisa A. Wood, MD, and Mark J. Polak, MD, described modifications of standard catheter insertion techniques that facilitated successful line placement.

Photo Essay: The Butterfly Technique: A New Method of Inserting an Umbilical Vessel Catheter