In This Issue • June 15, 2016

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JAVMA News

Veterinary students, recent graduates, college representatives, employers, governmental agencies, and veterinary associations discussed possible methods to reduce the debt burden on students and new veterinarians. In other news, the prevalence of heartworm disease in tested dogs was about 40 percent less in 2015 than in 2006, but the prevalence of diabetes mellitus increased 80 percent.

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Letters to the Editor

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What Is Your Diagnosis?

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Diagnostic Imaging in Veterinary Dental Practice

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Pathology in Practice

See pages 1355, 1359

Book Reviews

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Small Animals & Exotic

Tensile strength of simple interrupted, cruciate, intradermal, and subdermal suture patterns for incision closure

Continuous intradermal and subdermal suture patterns have been used to eliminate the need for suture removal following closure of skin incisions, but little information is available on the tensile strength of these suture patterns. In a study involving canine skin specimens in which an 8-cm incision was closed with a simple interrupted, cruciate, intradermal, or subdermal suture pattern, mean suture placement time was shortest for the cruciate pattern. Tensile strength of the simple interrupted and cruciate patterns was significantly higher than strength of the intradermal and subdermal patterns. Results suggested that external skin sutures may be preferred for closure of incisions under tension to reduce the risk of dehiscence.

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Risk factors for diskospondylitis in dogs after spinal decompression surgery for intervertebral disk herniation

Over the past several years, the incidence of postoperative diskospondylitis in humans patients undergoing various neurologic procedures appears to have increased. In a retrospective study of 372 dogs that underwent spinal decompression surgery because of intervertebral disk herniation between January 2007 and January 2011, the incidence of POD was low (8/372 [2.2%]). Univariate analysis revealed that German Shepherd Dogs, dogs > 8.8 years of age, dogs weighing > 20 kg (44 lb), and dogs with disk protrusions had higher odds of developing POD. However, the only factor that retained a significant association with POD after controlling for other factors in multivariate analysis was body weight > 20 kg.

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Sensitivity, specificity, and interobserver variability of survey thoracic radiography for the detection of heart base masses in dogs

Survey thoracic radiography is a highly specific but not highly sensitive method of detecting heart base masses in dogs, according to results of a new study. In the study, thoracic radiographs from 30 dogs with an HBM and 120 breed-matched control dogs were reviewed by 2 observers. Considering equivocal findings as evidence for an HBM, sensitivity of survey thoracic radiography was 56.7% (95% confidence interval [CI], 38.9% to 74.4%) and 80.0% (95% CI, 65.7% to 94.3%) for the 2 observers. The corresponding specificity was 92.5% (95% CI, 87.8% to 97.2%) and 92.5% (95% CI, 87.8% to 97.2%). A mass-like opacity cranial to the heart, tracheal deviation, or both was significantly associated with a true diagnosis of HBM.

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Management of diaphragmatic retroperitoneal perirenal fat and kidney herniation in a pet rabbit

A 6-year-old neutered male Lionhead-mix pet rabbit was examined because of sneezing and increased respiratory effort, and a diagnosis of diaphragmatic herniation of retroperitoneal perirenal fat and the right kidney was made. Results of follow-up radiography performed 9 months later were suggestive of progressive herniation of retroperitoneal perirenal fat, and an exploratory celiotomy was performed. A tear in the right dorsal tendinous portion of the diaphragm was noted, with the right kidney and perirenal fat displaced into the thorax. Diaphragmatic herniorrhaphy was performed after replacement of the right kidney and perirenal fat in the retroperitoneal space, and the rabbit recovered uneventfully.

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Ruminants

Risk profiling of cattle farms for risk-based surveillance for Mycobacterium bovis infection among cattle in tuberculosis-free areas

Given current budget constraints, there is a need to develop more efficient surveillance strategies to prevent the spread of bovine tuberculosis. When records for importation of cattle into Minnesota from other US states during 2009 (n = 7,185) and 2011 (8,107) were reviewed, a risk profile (ie, assessment and categorization of risk for disease introduction) for each import movement could be developed on the basis of known risk factors for infection. The risk model identified 4 risk classes for cattle movements. Approximately 500 of the estimated 27,406 (2%) cattle premises in Minnesota were in the very high or high risk groups for either year, suggesting that these farms should be selected for targeted surveillance efforts.

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Special Report

Association of gender and specialty interest with video-gaming, 3-D spatial analysis, and laparoscopic skills in third-year veterinary students

In human medicine, gender, performance on psychomotor tests, video-gaming experience, and previous experience with a laparoscopic simulator have been found to be associated with skill level when performing minimally invasive procedures. In a study of 68 (42 female and 26 male) third-year veterinary students, males had significantly higher video-gaming skills scores than did females, but spatial analysis and laparoscopic skills scores did not differ between males and females. Students interested in pursuing specialty certification in surgery had higher video-gaming and spatial analysis skills scores than did students interested in internal medicine, but laparoscopic skills scores did not differ between these 2 groups.

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