To determine whether technology is available to secure a larger-diameter Crawford tube swedged onto the metal Crawford introducer and to use the system in a closed intubation to treat a failed dacryocystorhinostomy.
A metal ferrule has been developed to swedge a larger-diameter Crawford tube onto the standard Crawford probe. Seven patients with failed dacryocystorhinostomy procedures were treated with probing and intubation with the use of this larger-tube Crawford system.
Six of the 7 patients had patent lacrimal systems after the tubes were removed, a result comparable to open revision after a failed dacryocystorhinostomy. In each case, on insertion, the tube remained firmly attached to the Crawford probe and did not dislodge.
The technology of using a metal ferrule at the junction of the standard Crawford probe and a larger silicone tube was successful in creating a Crawford system with greater dilation capability than the standard Crawford system. The technique of probing and intubation with this larger Crawford system may be a simple alternative to open revision of a failed dacryocystorhinostomy procedure.
A wider-diameter Crawford tube set, with a new system for connecting the tube to the olive-tipped probe through a small metal ferrule, has been used without open surgery in recanalizing the lacrimal system after failed dacryocystorhinostomy.
Department of Ophthalmology and Vision Sciences, University of Toronto, and Mount Sinai Hospital, Oculoplastics Service, Mount Sinai Hospital, Toronto, Ontario, Canada.
Accepted July 11, 2003.
Address correspondence and reprint requests to Dr. Jeffrey J. Hurwitz, Mount Sinai Hospital, 408–600 University Avenue, Toronto, Ontario, M5G 1X5 Canada.
The Crawford II system was supplied by Walsh Medical.
The author has no financial interests in Walsh Medical.