MAGNETIC RESONANCE IMAGING OF CEREBRAL CORTICAL NECROSIS (POLIOENCEPHALOMALACIA) IN A DOG     

Christopher L.  Mariani  DVM  Simon R.  Platt  BVMS  MRCVS  Susan M.  Newell  DVM  MS  Scott P.  Terrell  DVM  Cheryl L.  Chrisman  DVM  MS  EDS  Roger M.  Clemmons  DVM  PhD 《Veterinary radiology & ultrasound》2001,42(6):524-531

A 3-year-old neutered female mixed breed dog was examined because of severe, generalized seizure activity, tetraparesis, and encephalopathic signs. Cerebrospinal fluid (CSF) evaluation was unremarkable except for a mild increase in protein. Serum and CSF titers for infectious diseases were negative. Magnetic resonance (MR) imaging examination of the brain was performed and lesions were found within the cerebral gray matter of the temporal and parietal lobes. The lesions had increased signal intensity on T1, T2, and proton density-weighted images. There was mild inhomogeneous enhancement following intravenous contrast medium administration. Neurologic status improved and the seizures were well controlled, but the dog never regained normal mentation and euthanasia was performed 10 weeks after initial evaluation. At necropsy, severe cerebral cortical necrosis was found in the regions corresponding to the lesions seen on MR imaging examination. Large numbers of fat-containing macrophages (gitter cells) were found within these areas, and are thought to be responsible for the characteristic hyperintensity seen on the MR images.  相似文献   

A Comparison of Surgical Training with Live Anesthetized Dogs and Cadavers     

LARRY G. CARPENTER DVM    DONALD L. PIERMATTEI DVM  PhD  Dipiomate ACVS    MOWAFAK D. SALMAN BVMS  PhD  Dipiomate ACVPM    E. CHRISTOPHER ORTON DVM  PhD  Dipiomate ACVS    A. WENDELL NELSON DVM  PhD  Dipiomate ACVS    DANIEL D. SMEAK DVM  Dipiomate ACVS    PAUL B. JENNINGS Jr.  VMD  MS  Dipiomate ACVS ROBERT A. TAYLOR DVM  MS  Dipiomate ACVS 《Veterinary surgery : VS》1991,20(6):373-378

Cadavers were compared with live anesthetized dogs for their effectiveness as models for surgical training of veterinary medical students. One group of students was trained using cadavers, and a peer group was trained using live anesthetized dogs. Both groups then performed an intestinal anastomosis using a live subject. The time to completion of the procedure was recorded. The anastomoses and celiotomy closures were evaluated. Each anastomosis was isolated and pressure tested. Reviewers blindly scored each surgical team's performance based on actual inspection of the surgical site and on viewing videotapes of the procedure. The participants' attitudes toward the use of live animals in teaching and research were documented before and after training. No statistically significant differences could be detected between the two groups. The results suggest that some substitution of cadavers for live dogs in surgical training might be feasible.  相似文献   

Retrospective evaluation of the effect of high flow oxygen therapy delivered by nasal cannula on PaO2 in dogs with moderate‐to‐severe hypoxemia          下载免费PDF全文

Iain Keir BVMS  DACVECC  DECVECC  Jennifer Daly DVM  Jamie Haggerty BS  Christine Guenther DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2016,26(4):598-602

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Hyperlactatemia and serial lactate measurements in sick cats          下载免费PDF全文

Lesleigh A. Redavid DVM  DACVECC  Claire R. Sharp BSc  BVMS  MS  DACVECC  Mark A. Mitchell DVM  MS  PhD  DECZM  Nicole F. Beckel DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2016,26(4):495-501

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Prevalence of AO blood group and level of agreement for AO blood-typing methods in pet pigs from Louisiana     

Chiara Hampton DVM  MS  DACVAA  Shannon Dehghanpir DVM  MS  DACVP  Chance Armstrong DVM  MS  DACT  Clare Scully DVM  MS  DACT  Rose E. Baker BVMS  MS  DACVIM  Mark Mitchell DVM  MS  PhD  DEZM 《Journal of Veterinary Emergency and Critical Care》2023,33(5):549-558

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SILVER IMPREGNATION IN SITU     

Jack  Boyd  PhD  BVMS  Norman W.  Rantanen  DVM  MS† 《Veterinary radiology & ultrasound》1984,25(5):220-226

In evaluating radiographs of the limb joints and head, students encounter difficulty where superimposition occurs. By replacing calcium with silver salts in the bone, enhanced radiopacity can be produced. In this study, silver impregnation was used to increase the radiopacity of individual carpal and tarsal bones, selected bones of the skull and the sinuses, and guttural pouch of the horse. This provides an interpretation aid for teaching radiographic anatomy of these regions.  相似文献   

RADIOGRAPHIC ANATOMY OF THE CRIBRIFORM PLATE (LAMINA CRIBROSA)     

Tobias  Schwarz  MA  Dr. Med. Vet.  Martin  Sullivan  BVMS PhD  Klaus  Hartung  Prof. Dr. Med. Vet 《Veterinary radiology & ultrasound》2000,41(3):220-225

The radiographic appearance of the cribriform plate was investigated in 16 canine cadaver heads. The cribriform plate appeared as a "V"-shaped multilinear bone-opaque stripe in the caudal nasal region in projections perpendicular to the hard palate in 6 dogs with a skull index between 50.00 and 54.00. In 9 dogs with a skull index between 55.40 and 74.40, the cribriform plate had a more "C"-shaped and sharp appearance. In vertically oblique projections with an obliquity greater than 20 degrees, the cribriform plate lost its sharp outline and finally (40 degrees) disappeared. In lateral projections the cribriform plate appeared as a "C"-shaped interrupted bone-opaque stripe in all 16 dogs. In more brachycephalic dogs frontal bone structures superimposed on the cribriform plate on ventrodorsal and dorsoventral views and accentuated the radiographic appearance of the plate. Vertically oblique views separated both structures to produce two lines.  相似文献   

Microvascular Free Tissue Transfer: Results in 57 Consecutive Cases     

J. DAVID FOWLER DVM  MVSC  Diplomate ACVS    DANIEL A. DEGNER DVM  Diplomate ACVS    RICHARD WALSHAW BVMS  Diplomate ACVS  DAVID WALKER DVM 《Veterinary surgery : VS》1998,27(5):406-412

Objective —To evaluate the outcomes and complications in a consecutive series of animals undergoing microvascular reconstructive procedures at two veterinary institutions. Study Design—Retrospective study. Animals or Sample Population—A total of 44 client-owned dogs and one red-necked wallaby. Methods —The medical records of all animals undergoing reconstructive microsurgical procedures at the Western College of Veterinary Medicine and Michigan State University were reviewed. Microvascular flap survival and related complications were described. Statistical analysis was performed to determine the significance of relationships between operative factors and outcome. Results —A total of 57 microvascular procedures were performed on 55 animals. Reconstruction was required after trauma in 42 animals, after ablative cancer surgery in 11 animals and for correction of congenital tissue aplasia in 1 animal. Donor tissues included the superficial cervical cutaneous, medial saphenous fasciocutaneous or musculofasciocutaneous, caudal superficial epigastric cutaneous, trapezius muscle or musculocutaneous, caudal sartorius muscle, latissimus dorsi muscle or musculocutaneous, cranial abdominal myoperitoneal, carpal footpad, digital footpad, and vascularized ulnar bone flaps. A total of 53 of 57 flaps (93%) survived. There was a significant relationship between flap failure and level of assistant surgeon experience (P < .05). Latissimus dorsi flaps were significantly more likely to fail when compared with pooled data from all other flap types (P < .01). Conclusions —The success of microvascular tissue transfer in this case series compares favorably with those reported in human reconstructive microsurgery. Both the primary and assistant surgeon should be practiced in microsurgical technique. Failure of latissimus dorsi flaps was not likely caused by an inherently deficient flap design, but was more likely attributed to the location and severity of trauma at the recipient site, the difficulty in isolating suitable recipient vessels for anastomosis or the absence of a trained assistant surgeon during these procedures. Clinical Relevance —This retrospective study documents the successful application of microvascular technique in a series of clinical cases requiring tissue reconstruction.  相似文献   

ESTIMATION OF BLADDER VOLUME USING ULTRASONOGRAPHIC DETERMINATION OF CROSS-SECTIONAL AREAS AND LINEAR MEASUREMENTS     

Gultekin  Atalan  DVM  Frances J.  Barr  MA  VetMB  PhD  MRCVS  Peter E.  Holt  BVMS  PhD  CBiol  MIBiol  FRCVS 《Veterinary radiology & ultrasound》1998,39(5):446-450

The purpose of this study was to determine if ultrasonographic measurement of multiple cross-sectional areas combined with linear dimensions of the bladder could be used as a method of estimating bladder volume in the dog, and, if so, to compare the accuracy of this estimation with that described previously using linear measurements alone. Fifty-two live dogs undergoing investigation for urological disease and 37 fresh canine cadavers were used for bladder volume determination. Maximal length, depth, width, and area were measured from the maximal longitudinal and transverse sonograms in each living animal. In cadavers, the cross-sectional area of the longitudinal section of the bladder was measured at one centimeter intervals, and the measurements were summed. Based on sequential partial regression analysis, the cross-sectional area of the longitudinal section of the bladder and length were the best predictors of actual bladder volume in living animals. However, based on the cadaver experiment, the best predictor of actual bladder volume was summed parasagittal area alone, and, in cadavers, this was a much better predictor of actual bladder volume than the combination of the cross-sectional area of the longitudinal section of the bladder and length. The formula derived in living dogs using the corss-sectional area of the longitudinal section of the bladder and length gave a less accurate estimation of bladder volume than a previously published formula where only linear measurements were used.  相似文献   

A fluoroscopic study of the position and action of different bits in the horse's mouth     

Hilary M. Clayton BVMS  PHD  MRCVS 《Journal of Equine Veterinary Science》1985,5(2):68-77

Fluoroscopy was used to visualize the position and movements of different types of bits within the horse's oral cavity. The jointed eggbutt snaffle normally lay between the tongue and palate with the joint hanging down toward the incisor teeth. By arching and elevating the tongue the horse was able to raise the mouthpiece between the cheekteeth. The jointed mouthpiece was suspended in a more horizontal position when keepers were used with a cheek snaffle to fix the position of the bit rings relative to the cheekpieces of the bridle. In addition, the mobility of the bit within the oral cavity was reduced by using keepers. Similarly less intra-oral movement was observed in bits with an unjointed mouthpiece.The Dr. Bristol bit, which has two joints connected by an angled plate, could be attached to the bridle in two ways so that the plate lay either parallel to the tongue and palate or perpendicular to them. This would be expected to have a marked effect on the severity of action of the bit. The high tongue port of the Hannoverian pelham pressed against the palate when the reins were used, causing considerable discomfort.  相似文献