Transobturator Vaginal Tape Inside Out for Treatment of Urethral Sphincter Mechanism Incompetence in Female Dogs: Cadaveric Study and Preliminary Study in Continent Female Dogs

in Veterinary Surgery : The Official Journal of the American College of Veterinary Surgeons (2010), 39(8), 957-968

ABSTRACT Objectives – 1) To describe a surgical technique adapted from the “transobturator vaginal tape inside-out” (TVT-O) used in women and to define the trajectory of the tape on cadavers, and 2) To ... [more ▼]

ABSTRACT Objectives – 1) To describe a surgical technique adapted from the “transobturator vaginal tape inside-out” (TVT-O) used in women and to define the trajectory of the tape on cadavers, and 2) To determine the urodynamic and morphological effects of the TVT-O in continent bitches. Study Design – Cadaveric and experimental in vivo study. Animals – Fresh female canine cadavers (n = 12) and spayed female Beagle dogs (n = 2). Methods – 1) TVT-O was inserted in 12 cadavers. Dissection was performed and distances between the tape and neighboring structures were recorded. 2) TVT-O was inserted in 2 continent female Beagle dogs. Urethral pressure profilometry (UPP) and vaginourethrograms were performed preoperatively, immediately after surgery and 2, 4, and 6 months postoperatively. Histopathology was performed 6 months after surgery. Results – 1) TVT-O tape was consistently located in a perineal space before entering the obturator foramina and was located at a safe distance from major neurovascular structures including the femoral vessels and the obturator nerve. 2) UPP showed an increased integrated pressure postoperatively up to 4 postoperative months. Vaginourethrograms performed postoperatively showed a ventral displacement and narrowing of the distal urethra. Histopathological examination of the tissues surrounding the tape revealed a mild fibroblastic proliferation with a mild to minimal lympho-plasmocytic inflammatory infiltration. Conclusions - TVT-O is a feasible and accurate procedure which can be performed in continent bitches with a low risk of complications. [less ▲]

Inflammatory pseudotumors of the urinary bladder in dogs resembling human myofibroblastic tumours: A report of eight cases and comparative pathology.

in Veterinary Journal (2010)

Myofibroblastic inflammatory urinary bladder tumors in dogs: report of 8 cases

Poster (2008, July)

Magnetic resonance imaging findings in the equine deep digital flexor tendon and distal sesamoid bone in advanced navicular disease--an ex vivo study.

in Veterinary Radiology & Ultrasound (2005), 46(4), 279-86

We describe the abnormal magnetic resonance (MR) imaging findings in the deep digital flexor tendon (DDFT) and distal sesamoid bone in horses with radiographic changes compatible with navicular syndrome ... [more ▼]

We describe the abnormal magnetic resonance (MR) imaging findings in the deep digital flexor tendon (DDFT) and distal sesamoid bone in horses with radiographic changes compatible with navicular syndrome. Thirteen postmortem specimens were examined using a 1.5-T magnetic field, with spin echo (SE) T1-weighted, turbo SE (TSE) proton density-weighted (with and without fat saturation), and fat saturation TSE T2-weighted sequences. The limbs were then dissected to compare the MR findings with the gross assessment and histologic examination of the DDFT and distal sesamoid bones. Tendonous abnormalities were detected by MR imaging in 12 DDFTs and confirmed at necropsy. Most tendon lesions were located at the level of the distal sesamoid bone and the proximal recess of the podotrochlear bursa. Tendon lesions were classified based on their MR imaging features as core lesions, dorsal lesions, dorsal abrasions, and parasagittal splits. Areas of increased MR signal in the DDFTs were characterized by tendon fiber disturbance and lack of continuity of the collagen fibers, foci of edema, hemorrhages, and formation of lakes containing eosinophilic plasma-like material or amphophilic material of low density. Bone marrow signal alterations in the distal sesamoid bone were seen in all digits. Two main phenomena were responsible for the abnormal signal, respectively, in T1-weighted (decreased signal) and in T2-weighted fat-suppressed images (increased signal): a decrease in the fat marrow content in the trabecular spaces and an increase in the fluid content. Histologic examination revealed foci of bone marrow edema, hemorrhage, necrosis, and fibrosis. Cyst formation and trabecular abnormalities (disorganization, thinning, remodelling) were also observed in areas of abnormal signal intensity. Increased bone density because of trabecular thickening induced a decrease in signal in all sequences. [less ▲]

Gallbladder mucocele: diagnosis, treatment and outcome in 4 dogs

Poster (2004, July)

Resolution of chylothorax after resection of rib chondroma in a dog

in Journal of Small Animal Practice (2003), 44(12), 546-549

A six-year-old, male dobermann was presented with a history of dyspnoea and bouts of coughing. Radiography and computed tomography of the thorax showed pleural effusion and a well-circumscribed, calcified ... [more ▼]

A six-year-old, male dobermann was presented with a history of dyspnoea and bouts of coughing. Radiography and computed tomography of the thorax showed pleural effusion and a well-circumscribed, calcified mass of 10 cm in diameter, appearing to originate from the left first rib. Thoracocentesis revealed that the pleural fluid was chylous in nature. An inclsional biopsy was performed, which gave a histological diagnosis of chondroma. Resolution of the chylothorax after en-bloc surgical removal of the tumour suggested that the rib tumour was the initiating cause of the chylothorax. Seventeen months later, rib neoplasia recurred without pleural effusion, and was removed successfully. To the authors' knowledge, rib chondroma, which is an unusual tumour in dogs, has not been previously documented as a cause of chylothorax. [less ▲]