Publications by authors named "Ronan A Mullins"

An 8-month-old male, entire Cocker Spaniel dog was referred for investigation of severe right pelvic limb lameness. Previous history included a diagnosis of hemophilia A. On CT, a large, heterogeneous, rim-enhancing soft tissue mass was affecting the right thigh.

View Article and Find Full Text PDF

Objective: To report 30-day survival of cats that experienced postattenuation neurologic signs (PANS) after surgical attenuation of a single congenital portosystemic shunt (cPSS), and to investigate prognostic factors for short-term survival.

Study Design: Multi-institutional retrospective study.

Sample Population: A total of 59 cats with cPSS that experienced PANS.

View Article and Find Full Text PDF

Objective: To describe the development of neurologic signs progressing to seizures in 2 dogs and 1 cat with unoperated single congenital portosystemic shunts (CPSSs) after general anesthesia for non-shunt-related surgery and no intraoperative shunt manipulation.

Animals: 2 dogs (dog 1 [a 5-year-old 7.1-kg castrated male Bichon Frise] and dog 2 [a 10-year-old 7.

View Article and Find Full Text PDF

Background: Spinal stabilization in dogs is challenging, and improper implant placement can result in significant morbidity. Objectives were to evaluate reliability of a ball-tipped probe for detection of breached versus non-breached pedicle drill tracts in a canine large breed cadaveric model. CT scans obtained from T6 to sacrum.

View Article and Find Full Text PDF

Objective: To evaluate the feasibility of endoscopic inspection of thoracolumbar and lumbar pedicle tracts in a canine large-breed model and its accuracy for the detection of breached versus nonbreached tracts.

Animals: 2 greyhound cadavers.

Methods: CT scans of 2 greyhound cadavers from the sixth thoracic vertebra to the sacrum were obtained.

View Article and Find Full Text PDF

Objective: To compare pin placement accuracy, intraoperative technique deviations, and duration of pin placement for pins placed by free-hand probing (FHP) or 3D-printed drill guide (3DPG) technique.

Sample Population: Four greyhound cadavers.

Methods: Computed tomography (CT) examinations from T6-sacrum were obtained for determination of optimal pin placement and 3DPG creation.

View Article and Find Full Text PDF

Objective: To describe arthroscopic-assisted hip toggle stabilization (AA-HTS) in cats, evaluate its feasibility and associated rate of iatrogenic injury, and assess deviations from planned surgical technique.

Study Design: Ex vivo study.

Animals: Skeletally mature cat cadavers (n = 7).

View Article and Find Full Text PDF

Development of postattenuation neurological signs (PANS) is a potentially severe complication after surgical attenuation of congenital portosystemic shunts in cats. This review summarizes findings of 15 publications that report occurrence of PANS in cats. PANS includes seizures but also milder neurologic signs such as blindness, ataxia, abnormal behavior, tremors, and twitching.

View Article and Find Full Text PDF

Objective: To determine and compare median sternotomy (MS) closure-related complication rates using orthopedic wire or suture in dogs.

Study Design: Multi-institutional, retrospective observational study with treatment effect analysis.

Animals: 331 client-owned dogs, of which 68 were excluded.

View Article and Find Full Text PDF

The recent interest in advanced biologic therapies in veterinary medicine has opened up opportunities for new treatment modalities with considerable clinical potential. Studies with mesenchymal stromal cells (MSCs) from animal species have focused on characterization (mostly following protocols developed for human application), experimental testing in controlled studies and clinical use in veterinary patients. The ability of MSCs to interact with the inflammatory environment through immunomodulatory and paracrine mechanisms makes them a good candidate for treatment of inflammatory musculoskeletal conditions in canine species.

View Article and Find Full Text PDF

Background: Canine intrarenal cystic lesions (ICLs) are infrequently reported in the veterinary literature. Several treatment options have been described including cyst fenestration (partial nephrectomy/deroofing) +/- omentalization, sclerotherapy using alcohol as a sclerosing agent, percutaneous cyst drainage (PCD), and ureteronephrectomy. Information regarding presenting clinical signs, physical examination findings, histologic diagnosis and outcomes of dogs with ICLs treated by different methods is limited.

View Article and Find Full Text PDF

Objectives: The aim of this study was to determine closure-related complications and outcome after median sternotomy (MS) in cats.

Methods: This was a retrospective, multicentric study. The medical records of cats undergoing MS from six referral hospitals were reviewed (2010-2020).

View Article and Find Full Text PDF

A 13-yr-old Shih tzu was referred for surgical management of right-sided cranial abdominal mass, which corresponded to large, cavitated renal mass on ultrasonography, and was suspected to represent neoplasia. Intraoperative impression smear cytology (ISC) of the renal mass wall was consistent with benign renal cyst (RC), without evidence of neoplasia or infection. Deroofing and omentalisation were performed and histopathology was consistent with benign RC.

View Article and Find Full Text PDF

Objective: To identify complications associated with and short- and long-term outcomes of surgical intervention for treatment of esophageal foreign bodies (EFBs) in dogs.

Animals: 63 client-owned dogs.

Procedures: Patient records from 9 veterinary hospitals were reviewed to identify dogs that underwent surgery for removal of an EFB or treatment or an associated esophageal perforation between 2007 and 2019.

View Article and Find Full Text PDF

Objective: To determine survival time and quality of life of dogs that developed postattenuation neurologic signs (PANS) after surgical treatment of a single congenital portosystemic shunt and survived at least 30 days and identify whether neurologic signs present at the time of discharge would resolve or reoccur.

Animals: 50 client-owned dogs.

Procedures: Medical records were retrospectively reviewed, and follow-up data relating to neurologic signs and seizure activity were obtained.

View Article and Find Full Text PDF

Case Description: A 9-year-old castrated male domestic shorthair cat (cat 1) and a 10-year-old castrated male Maine Coon cat (cat 2) were presented for recurrent feline lower urinary tract disease after receiving outpatient care from their primary veterinarians.

Clinical Findings: Physical examination findings for both cats were initially within reference limits. After a short period of hospitalization, both cats developed peritoneal effusion; results of cytologic analysis of a sample of the fluid were consistent with septic peritonitis.

View Article and Find Full Text PDF

The development of postattenuation neurologic signs (PANS) is a poorly understood and potentially devastating complication after surgical attenuation of congenital portosystemic shunts in dogs. Postattenuation neurologic signs include seizures but also more subtle neurologic signs such as depression, behavioral changes, tremors, and twitching. They most commonly occur within 7 days postoperatively and are typically unrelated to hyperammonemia, hypoglycemia, or electrolyte disturbances.

View Article and Find Full Text PDF

Objective: To report overall rate and type of complications and outcomes of cats with coxofemoral luxation managed with hip toggle stabilization (HTS), to compare rate of postoperative complications and outcomes of cats treated with ultrahigh-molecular-weight-polyethylene (UHMWPE) or nylon, and to identify risk factors for reluxation and non-excellent outcomes.

Study Design: Multi-institutional retrospective cohort study.

Sample Population: Forty-eight client-owned cats.

View Article and Find Full Text PDF

Objective: To determine the effect of stifle flexion on the proximity of the cranial tibial artery to the proximal tibia in canine stifles with an intact or transected cranial cruciate ligament (CCL).

Study Design: Ex vivo randomized blinded computed tomographic angiographic study.

Sample Population: Fifteen pelvic limbs from eight greyhound cadavers.

View Article and Find Full Text PDF

Background: Intraosseous epidermoid cyst (IEC) is a rare, non-neoplastic, pathology in animals and humans that most commonly affects the distal phalanx. In dogs, it is important to differentiate this lesion from malignant digital tumours causing bone lysis. In previous reports, IEC has been described to affect only a single digit at the time of diagnosis which is usually based on histopathology.

View Article and Find Full Text PDF

Maxillectomy is poorly described for the management of oral tumours in cats and is occasionally not recommended because of the high complication rate and sub-optimal outcome reported in cats treated with mandibulectomy. The purpose of this study was to retrospectively evaluate the complications and oncologic outcome in cats treated with maxillectomy. Sixty cats were included in the study.

View Article and Find Full Text PDF

Objective: To evaluate and report the quality of the scientific literature reporting complications associated with laparoscopic and laparoscopic-assisted procedures in client-owned or healthy research dogs and to report and illustrate laparoscopic complications related to individual organ systems.

Study Design: Systematic review.

Animals: Client-owned or healthy research dogs.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to find factors affecting short-term survival in dogs that had seizures within a week after surgery for congenital extrahepatic portosystemic shunts (cEHPSS).* -
  • Data from 93 dogs across 14 veterinary institutions were analyzed, revealing that 32.3% survived to 30 days post-surgery, with previous seizure history and focal seizures being linked to better survival rates.* -
  • The findings can help veterinary professionals better advise dog owners on treatment options and expectations for dogs experiencing post-surgery seizures.*
View Article and Find Full Text PDF

Objective: To compare complications and outcome following unilateral, staged bilateral, and single-stage bilateral ventral bulla osteotomy (VBO) in cats.

Animals: 282 client-owned cats treated by VBO at 25 veterinary referral and academic hospitals from 2005 through 2016.

Procedures: Medical records of cats were reviewed to collect information on signalment, clinical signs, diagnostic test results, surgical and postoperative management details, complications (anesthetic, surgical, and postoperative), and outcome.

View Article and Find Full Text PDF