Poodle receives stent at LSU Veterinary School
Maggie loves to catch Frisbees. However, after a dental cleaning at her veterinarian’s office, the 10-year-old black Standard Poodle began to discharge large amounts of thick mucus out of her nose. This made it impossible for her to breathe out of her nose, and she began to gradually decline. Thanks to a procedure done at the LSU School of Veterinary Medicine, Maggie can breathe through her nose again and is back to catching Frisbees. “She’s a different dog,” said Maggie’s owner, Susan Strait of Lafayette, La.
In July 2009, Maggie received a nasopharyngeal stent. This stent is a wire mesh tube to hold the nasal passages open and prevent scar tissue recurrence. These stents were originally designed for humans but modified for veterinary purposes. In consultation with specialists across the country, the procedure was performed in the LSU Veterinary Teaching Hospital’s Cardiac Catheterization Laboratory so that both endoscopy and fluoroscopy could be used. Endoscopy is a visual examination of interior structures of the body with an endoscope (essentially a special camera with a light source that can be inserted into the mouth or nose). Fluoroscopy allows examination using a fluoroscope, an instrument that uses an x-ray to project moving images onto a screen. “The mobile fluoroscopy equipment available in the Cardiac Catheterization Laboratory is a highly maneuverable compact system that provides a large field of view for intra-operative images without interfering with the work of the doctor performing the procedure,” said Dr. Romain Pariaut, assistant professor of veterinary cardiology.
The procedure was performed by Dr. Pariaut and Dr. Kirk Ryan, assistant professor of companion animal medicine. Assisting with the procedure were Lee Ann Eddleman, veterinary technician; Dr. Martin; and Dr. Lorrie Gaschen, associate professor of radiology. “As a veterinary cardiologist involved in cardiac catheterizations, I am very familiar with the instruments, balloons and guidewires used to treat this problem and the various steps of the procedure. Indeed, this is very similar to the treatment of stenosis of the pulmonic valve, a common congenital defect in dogs,” said Dr. Pariaut.
A guidewire was inserted through Maggie’s nose and passed through a 1 millimeter opening to span the area of scar tissue. Using the guidewire, a balloon catheter was inserted through the stent and centered over the stricture (the area of narrow scar tissue). The balloon was inflated to open the stricture, and this could be seen using fluoroscopy. “We used some high pressure balloons to open the narrowed area to 14 mm,” said Dr. Ryan. Once the stenosis was open, the custom-made stent was placed on a balloon and passed over the guidewire where it was inflated under pressure to deploy the stent. Proper stent placement was verified on the x-ray and on the endoscope prior to removing the placement equipment. “I took six months to research and plan this procedure and order the equipment, but Maggie is doing great,” said Dr. Ryan.
Five New Faculty Members Join Veterinary Clinical Sciences
VCS is very excited to announce five new faculty members who have joined the department:
Dr. L. Abbi Granger, Assistant Professor, Diagnostic Imaging (DVM, University of Tennessee, 2007)
Dr. Kenneth Pierce, Assistant Professor, Ophthalmology(DVM, LSU, 2005)
Dr. Caryn Reynolds, Assistant Professor, Cardiology (DVM, Colorado State University, 2006)
Dr. Duane Robinson, Assistant Professor, Companion Animal Surgery (DVM, Ontario Veterinary College, University of Guelph, Canada, 2007)
Dr. Julia Sumner, Assistant Professor, Companion Animal Surgery (BVSc, University of Sydney, Australia, 2001).