Intrapericardial Cysts in the Dog     

David Sisson DVM    William P. Thomas DVM    John Reed MS  DVM    Clarke E. Atkins DVM  Howard B. Gelberg DVM  PhD 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1993,7(6):364-369

Intrapericardial cysts were identified as the cause of impaired cardiac filling in six young dogs. Pneumo-pericardiography and two-dimensional echocardiography showed the cysts in 2 of 2 dogs and in 4 of 4 dogs, respectively. One dog, which was also infected with heartworms, died before surgical excision of the cyst could be performed. In the remaining dogs, surgical excision of the cysts and subtotal pericar-diectomy was successfully accomplished. Histologic examination of the excised tissue from one dog suggested that it was a pericardial coelomic cyst. The gross and histologic characteristics of the cysts removed from the other five dogs resembled those of acquired cystic hematomas. The etiopathogenesis of these cysts was uncertain, but all cysts were connected to a fatty pedicle of tissue. In one dog, a stalk of tissue was observed to enter the pericardium through a small peritoneopericardial diaphragmatic hernia. In four dogs, the stalk of tissue was adhered to the apex of the parietal pericardium. These observations suggested that intrapericardial cysts, in some dogs, develop in association with, and possibly as a result of, congenital herniation and entrapment of omentum or a portion of the falciform ligament into the pericardial sac. (Journal of Veterinary Internal Medicine 1993; 7:364–369. Copyright © 1993 by the American College of Veterinary Internal Medicine.)  相似文献   

RADIOGRAPHIC FEATURES OF AORTIC BULB/VALVE MINERALIZATION IN 20 DOGS     

James P.  Douglass  DVM  MS  Clifford R.  Berry  DVM  Donald E.  Thrall  DVM  PHD  David E.  Malarkey  DVM  PHD  Kathy A.  Spaulding  DVM 《Veterinary radiology & ultrasound》2003,44(1):20-27

The radiographic features of aortic bulb/valve mineralization in 20 dogs were reviewed. Extent, shape, number, and location of mineralization were recorded. Five of the dogs had additional alternate imaging examinations, including bone scintigraphy, echocardiography, and thoracic computed tomography. A necropsy was done on one dog, and the area of mineralization was evaluated using routine histology. The median age was 10 (mean 9.7; SD +/- 2.7) years. There were five males, seven neutered males, one female, and seven neutered females. The breeds were: Irish setter (6); rottweiler (7); chow-chow (1); miniature dachshund (1); borzoi (1); English setter (1); English springer spaniel (1); great Dane (1); and greyhound (1). Dogs with both right and left lateral radiographs (n = 17) had mineralization visible on both views, more conspicuously on the right lateral radiograph (n = 12). Aortic bulb mineralization was identified on the ventrodorsal radiograph of only one dog. On lateral radiographs, the aortic bulb mineralization was localized within the 4th intercostal space and in the craniodorsal quadrant of the cardiac silhouette. In nine of the dogs, there were complex or multiple mineralizations and in 11 dogs, there was a single curvilinear mineral opacity oriented in a caudoventral to craniodorsal direction. In all radiographs, the mineralization was in the expected position of the aortic bulb, and echocardiography (n = 4), spiral computed tomography (n = 2), and necropsy (n = 1) confirmed that the mineralization was within the aortic bulb. Clinical pathologic data of the dogs suggested no reason for metastatic mineralization. Exact etiopathogenesis of the lesions were not determined in this study. Based on the histologic findings in one dog, the mineralization seen in the aortic root is similar to a form of dystrophic mineralization called Monckeberg's calcific arteriosclerosis in humans. No clinical signs attributable to the mineralization were observed.  相似文献   

UPTAKE OF ^99mTCMDP IN MUSCLE ASSOCIATED WITH A PERIPHERAL NERVE BLOCK     

RODGER V. ALLHANDS  DVM  PHD    A. ROBERT TWARDOCK  DVM  PHD    MICHAEL J. BOERO  DVM  MS 《Veterinary radiology & ultrasound》1987,28(5):181-184

A focal area of increased uptake of radioactivity was observed in muscle during bone imaging with ^99mTcMDP. The area was previously the site of a peripheral nerve block with mepivacaine hydrochloride. Additional experiments were done to document the action of the local anesthetic. The effect on uptake decreased over several days.  相似文献   

Effects of thyroid hormones on serum and cutaneous fatty acid concentrations in dogs     

K L Campbell  C A Davis 《American journal of veterinary research》1990,51(5):752-756

The effects of thyroid hormones on the serum and cutaneous fatty acid concentration profiles of dogs were evaluated. Thyroidectomized dogs had significant (P less than 0.05) increases in serum oleic acid and linoleic acid concentrations, and decreases in concentration of dihomo-gamma-linolenic acid, arachidonic acid, and other elongation products of fatty acid metabolism. These changes were reversed in response to thyroid hormone replacement. Similar changes were found in cutaneous fatty acid concentration profiles. Thus, in dogs, thyroid hormones may be involved in the regulation of fatty acid delta-6-desaturase activity.  相似文献   

Replacement of the Medial Collateral Ligament with Polypropylene Mesh or a Polyester Suture in Dogs     

GILBERT T. ROBELLO DVM  MS    DENNIS N. ARON DVM  Diplomate ACVS    TIMOTHY L. FOUTZ MS  PhD  GEORGE N. ROWLAND DVM  PhD  Diplomate ACVP 《Veterinary surgery : VS》1992,21(6):467-474

The medial collateral ligament of one stifle in 20 adult dogs was excised and replaced with polypropylene mesh or a polyester suture. After 26 weeks, the fibrous tissue-prosthesis composites were evaluated clinically, morphologically, and biomechanically. Clinical lameness was not significantly different after 10 days. The polypropylene mesh reconstructions consistently had more fibrous tissue and greater collagenous ingrowth than the polyester suture reconstructions. There were four complications related to fixation of the polypropylene mesh prosthesis and one to the polyester suture. The polypropylene mesh reconstructions had greater stability and were biomechanically more similar to the natural ligaments than the polyester suture reconstructions. Although the results with polypropylene mesh were favorable, more challenging biomechanical testing and alternative anchoring techniques are required before polypropylene mesh can be recommended as a collateral ligament replacement in dogs.  相似文献   

Pulmonary Hypertension and Cardiac lnsuff iciency in Three Cows with Primary Lung Disease   总被引：1，自引：0，他引：1  

Kenneth L. Angel DVM  MS  Jeff W. Tyler DVM  MPVM  PhD 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1992,6(4):214-219

Increased pulmonary arterial pressures as a result of pulmonary disease are described in two cows with chronic pneumonia and one cow with acute pneumonia. Based on clinical signs of congestive right heart failure, increased pulmonary arterial pressure, and right ventricular hypertrophy, cor pulmonale was diagnosed in one cow. Two cows had increased pulmonary arterial pressure and signs of right heart insufficiency, but right ventricular hypertrophy was not identified. Two of the cows had ventral edema and exercise intolerance. All cows had jugular venous distention and increased right atrial and pulmonary arterial pressures. Peripheral arterial PaO2 was decreased in two cows, and not measured in the third cow. Although an uncommon cause of congestive heart failure in cattle at low altitudes, pulmonary hypertension should be considered in cattle with clinical right heart failure.  相似文献   

HEMANGIOSARCOMA IN THE MAIN PULMONARY ARTERY OF A DOG   总被引：1，自引：0，他引：1  

John W.  Pharr  DVM  MS  David L.  Holmberg  DVM  MVetSC  Edward G.  Clark  DVM  MVetSC 《Veterinary radiology & ultrasound》1992,33(2):78-82

The clinical, radiological and necropsy findings in a five-year old dog with a hemangiosarcoma in the main pulmonary artery are described. Hemangiosarcoma in this location has not been previously described in the dog, the typical location in the heart being the right atrium and auricle. The tumor in this dog caused both a perfusion deficit to the right lung and obstruction of right ventricular outflow, which eventually caused right heart failure.  相似文献   

A Retrospective Study of the Use of Total Parenteral Nutrition in Dogs and Cats   总被引：1，自引：0，他引：1  

Aunna C. Lippert DVM  MS    Robert B. Fulton Jr.  DVM Alice M. Parr LVT 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1993,7(2):52-64

The records of all dogs and cats receiving total parenteral nutrition (TPN) over a 43-month period were examined retrospectively. Dextrose, amino acids, lipids, electrolytes, and vitamins were administered by central venous catheter according to published nutrient recommendations; 72 dogs and 12 cats were studied, accounting for 380 patient days of TPN. Duration of TPN administration was 1–14 days with a mean of 4.5 days. Most animals required TPN because of gastrointestinal dysfunction, and more than half of them gained weight during TPN administration. Mechanical complications were frequent. Metabolic complications, especially lipid and glucose intolerance, were also commonly seen. Septic complications were the least frequently encountered, but resulted in patient morbidity and may have contributed to mortality. Most animals receiving TPN were returned to enteral nutrition and discharged. For critically ill animals unable to tolerate enteral alimentation, TPN can be supportive therapy in the treatment of the primary disease.  相似文献   

COMPARISON OF THREE RADIOGRAPHIC CONTRAST PROCEDURES IN THE EVALUATION OF THE CANINE LUMBOSACRAL SPINAL CANAL     

John T.  Hathcock  DVM  MS  Robert D.  Pechman  DVM  A. Ray  Dillon  DVM  MS  † Charles D.  Knecht  VMD  MS  † Kyle G.  Braund  BVSc  PhD‡ 《Veterinary radiology & ultrasound》1988,29(1):4-15

Lumbar myelography, intraosseous caudal vertebral venography, and epidurography were performed in 12 normal, mature mixed-breed dogs. The radiographic appearance of the lumbosacral region was evaluated in both the lateral and ventrodorsal projections. These three radiographic contrast procedures were repeated in the same dogs after the introduction of a silicone mass into the spinal canal at the lumbosacral junction. The radiographic findings were compared with postmortem findings to determine which contrast procedure was most useful in detecting the mass in the lumbosacral spine. None of the procedures evaluated consistently produced good-quality studies in the normal dogs. After introduction of the silicone mass, lumbosacral epidurography yielded the largest number of positive correlations. However, the sensitivity of lumbosacral epidurography was less than 50% in the lateral projection and less than 20% in the ventrodorsal projection. Though none of the procedures were consistently helpful in the diagnosis of the lumbosacral masses, lumbosacral epidurography has the most potential to give consistently good-quality studies and thereby a greater probability of detecting an abnormality.  相似文献   

Aspiration pneumonia following near-drowning in a mare: A case report     

Scott M. Austin DVM  Jonathan H. Foreman DVM  MS  Thomas E. Goetz DVM 《Journal of Equine Veterinary Science》1988,8(4)

A 10-year-old Arabian mare was referred after being trapped in a river following a tornado. The results of the clinical examination, hematology, blood gas analysis, and radiography, which confirmed near-drowning, are described. The development of aspiration pneumonia was identified by fever, hyperfibrinogenemia, hematology, positive transtracheal aspiration, and radiography. The therapy of near-drowning and aspiration pneumonia is discussed.  相似文献