Approximately 50% of Labradors will rupture the contralateral CCL within 5.5 months of the initial rupture but age, weight, sex, and TPA cannot be used as predictive features.
Results suggest that cats with EHBTO secondary to neoplasia have a poorer prognosis than cats with EHBTO secondary to chronic inflammatory disease. However, the overall prognosis for cats with EHBTO undergoing cholecystoenterostomy must be considered guarded to poor, and the incidence of perioperative complications is high.
BackgroundNon-contact cranial cruciate ligament rupture (CrCLR) is an important cause of lameness in client-owned dogs and typically occurs without obvious injury. There is a high incidence of bilateral rupture at presentation or subsequent contralateral rupture in affected dogs. Although stifle synovitis increases risk of contralateral CrCLR, relatively little is known about risk factors for subsequent contralateral rupture, or whether therapeutic intervention may modify this risk.Methodology/Principal FindingsWe conducted a longitudinal study examining survival of the contralateral CrCL in client-owned dogs with unilateral CrCLR in a large baseline control population (n = 380), and a group of dogs that received disease-modifying therapy with arthroscopic lavage, intra-articular hyaluronic acid and oral doxycycline (n = 16), and were followed for one year. Follow-up in treated dogs included analysis of mobility, radiographic evaluation of stifle effusion and arthritis, and quantification of biomarkers of synovial inflammation. We found that median survival of the contralateral CrCL was 947 days. Increasing tibial plateau angle decreased contralateral ligament survival, whereas increasing age at diagnosis increased survival. Contralateral ligament survival was reduced in neutered dogs. Our disease-modifying therapy did not significantly influence contralateral ligament survival. Correlative analysis of clinical and biomarker variables with development of subsequent contralateral rupture revealed few significant results. However, increased expression of T lymphocyte-associated genes in the index unstable stifle at diagnosis was significantly related to development of subsequent non-contact contralateral CrCLR.ConclusionSubsequent contralateral CrCLR is common in client-owned dogs, with a median ligament survival time of 947 days. In this naturally occurring model of non-contact cruciate ligament rupture, cranial tibial translation is preceded by development of synovial inflammation. However, treatment with arthroscopic lavage, intra-articular hyaluronic acid and oral doxycycline does not significantly influence contralateral CrCL survival.
A conversion rate of 21% was found in this population of dogs and cats undergoing laparoscopic diagnostic procedures. A preoperative finding of a solitary liver tumor, low total solids, and diagnosis of malignancy were all significant risk factors for conversion.
A 10.5-year-old domestic shorthair presented with a history of progressive inappetence, lethargy and elevated respiratory rate. Clinical and diagnostic findings confirmed the presence of a chylothorax with evidence of a mass or collapsed lung within the right cranial thorax. Computed tomography, sternotomy and histopathology confirmed the presence of a right middle lung lobe torsion associated with a chylothorax. The torsion was successfully managed with surgical removal of the affected lung lobe, and the patient continues to be asymptomatic 6 months postoperatively.
OBJECTIVE To identify factors associated with dehiscence and mortality rates following gastrointestinal surgery in dogs. ANIMALS 170 client-owned dogs that underwent gastrointestinal surgery from 2010 to 2016. PROCEDURES Medical records of all included dogs were reviewed to collect information on preoperative (breed, sex, age, body weight, American Society of Anesthesiologists [ASA] physical status classification, emergency status, and plasma lactate concentration), intraoperative (indication for surgery, type of surgery, and whether bacterial peritonitis was identified), and postoperative (development of dehiscence and survival status at 2 weeks after surgery) factors. Preoperative and intraoperative factors were evaluated for associations among each other and with postoperative factors. RESULTS Univariate analyses revealed that preoperative plasma lactate concentration increased with increasing ASA status, and lactate concentrations were significantly higher for nonsurvivors (mean ± SD, 4.6 ± 3.7 mmol/L) than for survivors (2.4 ± 1.7 mmol/L). Multivariate analysis controlling for age, body weight, and plasma lactate concentration revealed that dogs with an ASA status ≥ 3 were more likely to develop dehiscence after gastrointestinal surgery than were dogs with a lower ASA status (OR, 17.77; 95% confidence interval, 2.17 to 144.06). Multivariate analysis also revealed that dogs with an ASA status ≥ 3 or high lactate concentration were less likely to survive than were other dogs. CONCLUSIONS AND CLINICAL RELEVANCE These findings regarding ASA status and preoperative plasma lactate concentration and their associations with outcome may help clinicians to determine and provide optimal perioperative care to dogs requiring gastrointestinal surgery as well as to inform owners about prognosis.
OBJECTIVE To determine the difference in histologic artifacts and morphologic diagnosis among 3 laparoscopic cup biopsy forceps techniques and wedge hepatic samples. ANIMALS Cadavers of 20 client-owned dogs following euthanasia for unrelated reasons between January 3 and July 29, 2021. PROCEDURES Four biopsy techniques were performed from the margin of 3 liver lobes/dog. Laparoscopic techniques used 5-mm cup biopsy forceps to obtain biopsy samples by pulling the forceps forcefully caudally to free a sample (the PULL technique), rotating the forceps 360° in 1 direction until freed (the TWST technique), or pulling the forceps through a 5-mm cannula to remove the sample (the CAN technique); wedge biopsy samples served as the control (CON). Data collected included sample weight, histologic features, diagnosis, and artifact characterization. Gwet AC1 or intraclass correlation coefficients (ICCs) were calculated to detect agreement among techniques. RESULTS Sample weights for CON and TWST were significantly larger (P < .001 and P = .035, respectively) than for PULL and CAN. There was excellent agreement among all techniques for most diagnostic features (Gwet AC1, 0.93 to 1). The TWST technique resulted in the best overall artifact profile for laparoscopic techniques, with 90% of samples (54/60) having crisp edges and 65% of samples (39/60) having no or mild tearing. The agreement was moderate to good (ICC, 0.73 for edges and 0.76 for tearing) among all cup biopsy forceps techniques. CLINICAL RELEVANCE The TWST technique resulted in the largest sample and had the fewest artifacts, supporting its continued use during laparoscopic procedures.
The purpose of this study was to describe the appropriate surgical technique, postoperative monitoring, and complications encountered with use of vacuum-assisted closure (VAC) in six dogs with confirmed septic peritonitis. Initial diagnosis of septic peritonitis was performed by measuring either the blood-to-fluid lactate ratio and glucose concentration differences or cytologic verification of intracellular bacteria. After appropriate surgical procedures were performed to manage the primary cause of peritoneal sepsis, a VAC was performed. Serum and abdominal fluid protein levels were measured, and all complications were noted during the postoperative period. Three of the six dogs (50%) survived to the secondary closure and were subsequent discharged, which is similar to previous studies where the abdomen was either closed primarily or treated with open abdominal drainage. No major complications occurred with bandage management during hospitalization. The results of this study support VAC as a feasible technique for managing septic peritonitis.
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