Structural variations in a single hyaluronan derivative significantly alter wound-healing effects in the rabbit maxillary sinus.

Background: Biomaterials based on hyaluronan (HA) are currently used after sinus surgery but have not been found to decrease scarring or enhance wound healing. Chemical composition of these modified HA molecules may impact their biological and clinical effects.

Objective: To analyze chemical variations of a single crosslinked HA-based hydrogel, chemically modified thiolated HA (CMHA-SX).

Image guidance: A survey of attitudes and use.

Background: The aim of this study was to determine access to, usage of, and attitudes toward image guidance in endoscopic sinus and anterior skull base surgery.

Methods: We performed a survey of American Rhinologic Society members.

Results: Of 1050 surveys mailed, 340 (32.