Comparison of two postoperative complication grading systems after treatment of stifle and shoulder instability in 68 dogs     

Faolain M. Barrett BVM&S  Jason A. Bleedorn DVM MS  DACVS-SA  Kyle D. Hutcheson DVM  DACVS-SA  Bryan T. Torres DVM PhD  DACVS-SA  DACVSMR  Derek B. Fox DVM  PhD  DACVS 《Veterinary surgery : VS》2023,52(1):98-105

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Serum acute-phase protein concentrations following uncomplicated total hip arthroplasty in dogs     

Jose L. Carvajal DVM  MS  Stanley E. Kim BVSc  MS  DACVS-SA 《Veterinary surgery : VS》2023,52(1):81-86

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Nuclear radiation. Rewards of a volunteer     

Stone R 《Science (New York, N.Y.)》2001,292(5516):425

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Nuclear radiation. Genetic studies of wildlife in the hot zone reach different conclusions     

Stone R 《Science (New York, N.Y.)》2001,292(5516):421

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Paleontology. Mammoth hunters put hopes on ice     

Stone R 《Science (New York, N.Y.)》2001,291(5502):229-230

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Hypocalcemia in a critically ill patient     

Tamara B. Wills  DVM    rea A. Bohn  DVM  PhD  DACVP    Linda G. Martin  DVM  MS  DACVECC 《Journal of Veterinary Emergency and Critical Care》2005,15(2):136-142

Objective: To present a case of clinical hypocalcemia in a critically ill septic dog. Case summary: A 12‐year old, female spayed English sheepdog presented in septic shock 5 days following hemilaminectomy surgery. Streptococcus canis was cultured from the incision site. Seven days after surgery, muscle tremors were noted and a subsequent low serum ionized calcium level was measured and treated. Intensive monitoring, fluid therapy, and antibiotic treatment were continued because of the sepsis and hypocalcemia, but the dog was euthanized 2 weeks after surgery. New or unique information provided: Low serum ionized calcium levels are a common finding in critically ill human patients, especially in cases of sepsis, pancreatitis, and rhabdomyolysis. In veterinary patients, sepsis or streptococcal infections are not commonly thought of as a contributing factor for hypocalcemia. Potential mechanisms of low serum ionized calcium levels in critically ill patients include intracellular accumulation of calcium ions, altered sensitivity and function of the parathyroid gland, alterations in Vitamin D levels or activity, renal loss of calcium, and severe hypomagnesemia. Pro‐inflammatory cytokines and calcitonin have also been proposed to contribute to low ionized calcium in the critically ill. Many veterinarians rely on total calcium levels instead of serum ionized calcium levels to assess critical patients and may be missing the development of hypocalcemia. Serum ionized calcium levels are recommended over total calcium levels to evaluate critically ill veterinary patients.  相似文献   

Assessment of changes in blood volume in response to resuscitative fluid administration in dogs     

Deborah C. Silverstein  DVM  DACVECC    Janet Aldrich  DVM    Steve C. Haskins  DVM  MS  DACVECC  DACVA    Kenneth J. Drobatz  DVM  MSCE  DACVECC  DACVIM    Larry D. Cowgill  DVM  PhD  DACVIM 《Journal of Veterinary Emergency and Critical Care》2005,15(3):185-192

Objective: To determine the continuous changes in blood volume in response to fluid administration using an in‐line hematocrit monitor. Design: Prospective study. Setting: Research laboratory. Animals: Four healthy dogs. Interventions: Each dog received intravenous boluses of 80 mL/kg of 0.9% saline (S), 4 mL/kg of 7.5% saline (HS), 20 mL/kg of dextran 70 (D), 20 mL/kg of hetastarch (HES), or no fluids (control, C) on separate occasions. Fluids were administered at 150 mL/min in the S, D, and HES groups, and at 1 mL/kg/min in the HS group. Measurements and main results: Blood volume changes were measured every 20 seconds for 240 minutes using an in‐line hematocrit monitor. There was a rapid rise in blood volume during all infusions. Immediately after the administration of crystalloid fluids, the rapid rise in blood volume ceased. Subsequently, there was a steep decline in blood volume for 10 minutes, and a slower decline thereafter. In contrast, the rise in blood volume continued for at least 10 minutes after the infusion of the colloids was complete, and a plateau was observed for the remainder of the experiment. The blood volume effect, as measured by area under the curve, was significantly greater in the saline group than the other groups during the infusion time and for the 0–240 minutes time period. The areas under the curve for the two colloid solutions were not significantly different from each other during any time periods. The percent increase in blood volume immediately following the infusions was 76.4±10.0 in the S group, 17.1±3.2 in the HS group, 23.0±10.5 in the D group, and 27.2±6.4 in the HES group. At 30 minutes from the start of the infusion, the mean percent increases in blood volumes were 35.2±9.3 in the S group, 12.3±0.9 in the HS group, 35.9±7.3 in the D group, and 36.8±6.5 in the HES group. At 240 h post‐infusion, the mean percent increases in blood volume were 18.0±9.7 in the S group, 2.9±6.1 in the HS group, 25.6±16.1 in the D group, and 26.6±8.6 in the HES group. The C group had a mean percent change in blood volume of ?3.7±3.4 at the end of the experiment. Conclusions: This study indicates that the rapid administration of saline at clinically relevant doses leads to the largest immediate increase in blood volume, although this change is transient because of rapid redistribution of the fluid. Despite a brief increase in blood volume that was almost 3 times the volume administered, hypertonic saline led to the smallest increase in blood volume post‐infusion. The synthetic colloid solutions increased the blood volume by an amount greater than that infused and the effect was sustained for a longer period of time than seen following crystalloid administration, but the maximum increase in blood volume was significantly less than saline. The measurement of continuous changes in blood volume, using an in‐line hematocrit monitor, was a useful means of assessing the dynamic effects of fluid administration in dogs in a research setting.  相似文献   

Identification, characterization, and relatedness of luteovirus isolates from forage legumes     

Damsteegt VD  Stone AL  Russo AJ  Luster DG  Gildow FE  Smith OP 《Phytopathology》1999,89(5):374-379

ABSTRACT Virus isolates from forage legumes collected from eight different states were identified as luteoviruses closely related to soybean dwarf luteovirus dwarfing (SbDV-D) and yellowing (SbDV-Y) described in Japan. All isolates produced reddened leaf margins in subterranean clover and were transmitted in a persistent manner by Acrythosiphon pisum, but not by Aulacorthum solani. Specific monoclonal antibodies raised against SbDV-Y were differentially reactive with endemic isolates. Immunoblots probed with a SbDV-D polyclonal antiserum showed single 26-kDa coat protein bands, confirming close serological relatedness to SbDV. Analyses of genomic and subgenomic double-stranded RNAs and northern blot analyses confirmed genomic relatedness to SbDV. Based on our results, we conclude that the U.S. luteovirus isolates studied comprise a strain or strains of the soybean dwarf virus that have clovers as common hosts and the pea aphid as a common vector.  相似文献   

EXCRETORY UROGRAPHY BY INTRAOSSEOUS INJECTION OF CONTRAST MEDIA IN A RABBIT MODEL     

Paolo  Porzio  DVM  MVetSc  John W.  Pharr  DVM  MS  Andrew L.  Allen  DVM  MVetSc  PhD 《Veterinary radiology & ultrasound》2001,42(3):238-243

There are many indications for an intravenous excretory urogram. However, where intravenous access is not available, the intraosseous route to the circulation may be an alternative. We found that safe and diagnostic excretory urograms could be obtained in rabbits following the injection of different contrast media via the intraosseous route. In fact, these excretory urograms were indistinguishable from ones obtained by the conventional intravenous route. While the rabbits did not develop any abnormal clinical signs following the procedure, there were postmortem histologic lesions of osteochondrosis in 5 of 22 (22.7%) tibias receiving an intraosseous needle, but in none of the 14 tibias that did not receive an intraosseous needle. Further, the use of diatrizoate was associated with the development of osteochondrosis while the use of iopamidol was not.  相似文献   

SUBTRACTION PORTAL VENOGRAPHY     

ROBERT H. WRIGLEY  BVSc  MS  DVR  MRCVS    RICHARD D. PARK  DVM  PHD    LINDA J. KONDE  DVM    JACK L. LEBEL  DVM  PHD 《Veterinary radiology & ultrasound》1987,28(6):208-212

Photographic subtraction was made of 38 canine portal venograms to remove the images of the overlying abdominal structures and enhance the radiographic contrast of portal veins. The improved visual quality of the subtracted portogram aided in the detection of portosystemic shunts and intrahepatic portal veins. The subtraction studies revealed portosystemic shunts not detected on the initial portal venogram.  相似文献