OBJECTIVE To validate that dogs become hypocoagulable following rattlesnake envenomation and to determine whether thromboelastographic abnormalities are correlated with envenomation severity for dogs bitten by rattlesnakes native to southern California. ANIMALS 14 dogs with observed or suspected rattlesnake envenomation (envenomated dogs) and 10 healthy control dogs. PROCEDURES For each dog, a citrate-anticoagulated blood sample underwent kaolin-activated thromboelastography. For each envenomated dog, a snakebite severity score was assigned on the basis of clinical findings, and prothrombin time, activated partial thromboplastin time, and platelet count were determined when the attending clinician deemed it necessary and owner finances allowed. RESULTS For 12 of 14 envenomated dogs, the thromboelastographically determined clot strength was below the 25th percentile for the clot strength of control dogs, which was indicative of a hypocoagulable state. No envenomated dog had thromboelastographic results indicative of a hypercoagulable state. One envenomated dog had a prolonged prothrombin time, but the activated partial thromboplastin time and all thromboelastographic variables were within the respective reference ranges for that dog. Seven of 13 envenomated dogs were thrombocytopenic (platelet count, ≤ 170,000 platelets/μL). Snakebite severity score was negatively correlated with platelet count but was not correlated with any thromboelastographic variable. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that dogs generally become hypocoagulable following rattlesnake envenomation. Thromboelastography might provide an objective measure of the coagulation status of envenomated dogs and aid in the identification of dogs that are in a hypocoagulable state and in need of antivenin treatment prior to the onset of progressive clinical signs.
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.
Veterinary-specific studies are needed to evaluate the impact of surgical timing on outcome following trauma. The information that can be obtained from studies in this area can improve veterinary trauma care and may be used as models for human trauma care through translational applications.
Administration of preservative-free morphine into the epidural space was not associated with clinically important urinary retention in dogs undergoing elective orthopedic procedures. Systemic administration of opioids may be associated with urinary retention.
OBJECTIVE To document veterinarians’ perceptions and understanding of medical futility and determine the frequency with which medical futility occurs in small animal practice. SAMPLE 477 veterinarians in small animal general and specialty veterinary practice. PROCEDURES A cross-sectional study was performed with a 25-question, web-based, confidential, anonymous survey distributed through various professional veterinary specialty associations. RESULTS Nearly all respondents (469/474 [99.0%]) believed that futile care occurs in veterinary medicine, and 42.4% (201/474) felt it occurred commonly (> 6 times/y). A similar percentage (471/475 [99.2%]) reported encountering futile care within their careers, and 85.0% (402/476) reported encountering it within the past year. A majority (293/477 [61.4%]) reported witnessing futile care occurring in both inpatient and outpatient settings. Most respondents disagreed or strongly disagreed (320/463 [69.1%]) with a statement that providing futile care is always wrong, and only 38 (8.2%) agreed or strongly agreed. Over 70% (329/464 [70.9%]) of respondents agreed that there are situations in which provision of futile care is appropriate. CLINICAL RELEVANCE The importance of reaching a consensus definition for medical futility in veterinary medicine is evident given the frequency with which such care is being provided. Most small animal specialist veterinarians will encounter futile care, and the establishment of an ethical framework to navigate questions surrounding medical futility may help reduce moral distress.
Objective To determine the success rate and complications associated with inducing emesis in dogs that have ingested foreign material. Design Retrospective case series, 2010–2014. Setting Private practice and referral center. Animals Sixty‐one client‐owned dogs that had emesis induced for the treatment of ingestion of foreign material. Interventions None. Measurements and Main Results Emesis was successfully induced in 59 of 61 (97%) dogs administered an emetic. Of those 59 dogs, 46 (78%) produced the foreign body. There were no complications reported in any of the dogs in which emesis was successfully induced. Dogs in which emesis was successfully induced were likely to produce the foreign body (P = 0.01). Conclusion Based on the results of this study, emesis appears to be a safe and effective means for the removal of certain gastric foreign bodies in dogs.
OBJECTIVE To evaluate the indications for, complications of, and surgical outcomes of dogs and cats that were treated with double limb amputations. ANIMALS 14 dogs and 4 cats that underwent double limb amputations. PROCEDURES Data collected retrospectively included patient-specific (species, age, weight, breed, sex, existing comorbidities) and amputation-specific (indication for amputation, full or partial limb amputation, associated complications, need for revision surgeries) variables. Owner satisfaction scores were also collected. RESULTS The most common indication for double amputations was trauma (12/18) patients. Eleven patients had both amputations performed simultaneously. Nine patients had double partial limb amputations versus full limb amputations. Twelve patients underwent bilateral pelvic limb amputations, 4 underwent bilateral thoracic limb amputations, and 2 had 1 pelvic and 1 contralateral thoracic limb amputated. Five patients had reported complications over the course of the follow-up period, and complications for 3 patients were considered major. Revision surgery was reported for 2 animals. Owner satisfaction scores were reported as very satisfied/excellent (14/18), mildly satisfied (3/18), and strongly dissatisfied (1/18). Median time to follow-up was 450 days (range, 85 to 4,380 days). CLINICAL RELEVANCE Double limb amputation may be a viable alternative to advanced limb-sparing procedures or humane euthanasia based on the owner satisfaction data and the relatively low rate of major complications in this study. Future studies should clarify patient selection criteria and differences in function between surgical types.
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