Parotid duct laceration repair in two horses : case report

Abstract

Repair of parotid duct lacerations in 2 horses is described using intraluminal silastic tubing as a stent. The duct was lacerated traumatically at the facial vessel notch (<em>incisura vasorum facialium</em>) in the 1st horse, and iatrogenically after removal of an intraluminal sialolith after development of infection within the duct in the 2nd horse. In both cases, a silastic tube was passed retrograde into the duct <em>via</em> the salivary papilla, past the wound until the end lay rostroventral to the parotid salivary gland. The severed salivary ducts and the wounds were sutured. The external portion of the silastic tube was sutured to the skin and the tube left in place. Recovery in the 1st case was uneventful. In the 2nd case a salivary duct/cutaneous fistula formed at a wound distant from the sutured wound, which healed spontaneously. This technique differs from a similar described technique in that the stent tube exits the oral cavity and is attached to the outer skin surface

Extraction of cheek teeth using a lateral buccotomy approach in 114 horses (1999-2009)

“…1997). The duct has been successfully repaired with or without the use of stent tubing (Olivier et al . 1998; Vos and Vos 2007).…”

Bilateral parotid duct transposition for keratoconjunctivitis sicca in a Connemara stallion

“…Intraluminal PD duct stents have been utilized in horses and humans to prevent stricture following surgical repair of PD lacerations 30–33 . The typical duration of stent placement reported is 10 to 28 days and 7 to 14 days in horses and humans, respectively 30,31,33 . Long‐term maintenance of indwelling silastic and polypropylene stents in this stallion was complicated by displacement of the stent by salivary flow, recurrent infections, and formation of strictures resulting in complete occlusion of the venous graft that necessitated removal.…”

“…An intraluminal silastic stent was placed at the time of surgery to maintain patency of the saphenous graft during healing and prevent stricture. Intraluminal PD duct stents have been utilized in horses and humans to prevent stricture following surgical repair of PD lacerations 30–33 . The typical duration of stent placement reported is 10 to 28 days and 7 to 14 days in horses and humans, respectively 30,31,33 .…”

Standing transcutaneous surgical excision of a sialolith in an 11‐year‐old Thoroughbred mare

“…Catheterisation of the parotid duct was performed to allow saliva to bypass the incision site to reduce the risk of dehiscence. The rostral aspect of the catheter was withdrawn through the skin at a separate site through a stab incision 3 cm rostral to the parotid papilla and secured to the skin using 0 Nylon (Ethicon 7 ) in a Chinese finger trap suture pattern (Olivier et al 1998). The lateral parotid salivary gland wall was closed with 3-0 glycomer 631 (Biosyn 8 ) in a simple interrupted suture pattern and the subcutaneous tissues were closed with 2-0 glycomer 631 (Biosyn 8 ) in a simple continuous suture pattern.…”