排序方式: 共有253条查询结果,搜索用时 15 毫秒
41.
BRADLEY R. JACKMAN DVM MS GARY M. BAXTER VMD MS DIPIOMATE ACVS RICHARD E. DORAN DVM MS Dipiomate ACVS DOUGLAS ALLEN DVM MS Dipiomate ACVS ANDREW H. PARKS MA VET MB Dipiomate ACVS 《Veterinary surgery : VS》1993,22(4):285-288
The medical records of 57 horses that had palmar digital neurectomy performed between 1984 and 1990 were reviewed. Neurectomies were performed either by transection and elec-trocoagulation (47 horses) or by the guillotine technique (10 horses). Middle-aged geldings, Quarter Horses, and Thoroughbreds were significantly over-represented when compared with the hospital population. Horses used as hunter/jumpers also appeared to be over-represented. Complications occurred in 17 (34%) of the 50 horses for which follow-up information was obtained. Recurrence of heel pain was the most common complication (14 horses). Palpable painful neuromas were detected in three horses. One year after neurectomy, 74% of the horses were sound; this decreased to 63% after 2 years. 相似文献
42.
CLIFFORD M. HONNAS DVM Dipiomate ACVS ROBERT D. WELCH DVM PhD Dipiomate ACVS TROY S. FORD DVM Dipiomate ACVS JOHN R. VACEK DVM JEFFREY P. WATKINS DVM MS Dipiomate ACVS 《Veterinary surgery : VS》1992,21(4):261-268
The medical records of 12 horses with septic arthritis of a distal interphalangeal joint were reviewed to determine clinical features and response to treatment. Sepsis was caused by trauma or an injection that resulted in an open or contaminated distal interphalangeal joint. All horses were severely lame. Treatment included broad-spectrum parenterally administered antimicrobial drugs (ten horses), percutaneous through-and-through joint lavage (eight horses), indwelling drains (three horses), immobilization of the limb in a cast (three horses), intraarticular injection of sodium hyaluronate (one horse), intraarticular injection of antimicrobial drugs (five horses), curettage of the distal phalanx (one horse), and cancellous bone grafting to promote fusion (one horse). Five horses were euthanatized. Ankylosis of the affected joint developed in five horses, four of which are pasture sound. Two horses treated medically are sound although one underwent subsequent palmar digital neurectomy for treatment of navicular syndrome. 相似文献
43.
LORI E. GORDON dvm CHRISTOPHER THACHER dvm Dipiomate acvs DAVID T. MATTHIESEN DVM Dipiomate ACVS RICHARD J. JOSEPH DVM Dipiomate ACVIM 《Veterinary surgery : VS》1994,23(2):94-100
Forty-two cats underwent craniotomy for removal of a meningioma between 1985 and 1991. Median duration of clinical signs before examination was 1.25 months. All cats had inappropriate demeanor: 48% were dull and 38% were lethargic. Neurological deficits included impaired vision in 93%, paresis in 83%, and seizures in 19%. Computed tomography (CT) showed solitary masses in 86% and multiple masses in 14%. Intraoperative complications included hemorrhage and difficulty excising deep or adherent masses. Anemia in 13 of 42 cats was the most common immediate postoperative complication. Ten of 42 cats had no improvement or a more severe neurological status after surgery. Eight of 42 cats died immediately after surgery; 6 of these were anemic. Of the cats that survived the immediate postoperative period, evaluation 10 to 14 days after surgery showed that 97% (33 of 34) were alert and 79% (27 of 34) had returned to normal behavior. Neurological deficits, except for vision impairment, had resolved in most cats. The duration of follow-up varied from 1.3 months to 55.1 months. Ten cats developed neurological abnormalities from 1 month to 44.2 months after surgery; of these, 6 had tumor recurrence or new growth confirmed by CT scan or necropsy. Overall survival was 71% at 6 months, 66% at 1 year, and 50% at 2 years. Age of cat and location of tumor did not significantly affect survival ( P = . 1034 and .1851, respectively). There were too few precise measurements of tumor size to make a valid statistical comparison of the effect of size on survival. Location or presence of multiple tumors did not affect final outcome. Results of this study indicate that surgical excision is a beneficial method of treatment of cranial meningioma in cats. 相似文献
44.
TINA RUSTOMJEE BVSc MS ANN WAGNER DVM MS Diplomate ACVP Diplomate ACVA E. CHRISTOPHER ORTON DVM PhD Diplomate ACVS 《Veterinary surgery : VS》1994,23(4):307-310
Thoracotomy in dogs often is associated with lower than expected arterial oxygen tensions (PaO2 ). Pulmonary collapse from opening the thoracic cavity is likely to be responsible for decreased PaO2 during thoracotomy. To examine whether positive end-expiratory pressure (PEEP) is beneficial to dogs undergoing thoracotomy, PaO2 and hemoglobin saturation (SaO2 ) were measured in dogs randomly assigned to receive 5 cm of H2 O PEEP (n = 7) or no PEEP (n = 9). During surgery in both groups of dogs, PaO2 progressively decreased ( P < .001), but the decrease in PaO2 was significantly less in the PEEP group ( P = .027). In both groups, PaO2 did not decrease enough to have a substantial effect on SaO2 . Furthermore, application of PEEP during thoracotomy did not prevent moderate hypoxemia after surgery and discontinuation of PEEP. Application of 5 cm of H2 O PEEP seems to attenuate the decrease in PaO2 observed in dogs undergoing thoracotomy, but routine application of PEEP does not seem justified. © 相似文献
45.
SUSAN R. YANOFF DVM MS DONALD A. HULSE DVM Dipiomate ACVS ROSS H. PALMER DVM MS Dipiomate ACVS MICHAEL R. HERRON DVM MS Dipiomate ACVS 《Veterinary surgery : VS》1992,21(6):480-487
Distraction osteogenesis was used to treat five dogs with limb deformities or limb shortening. The affected bones underwent osteotomy, and modified external fixators were attached. Complications included pin loosening, implant breakage, and soft-tissue contracture. Adequate limb length was attained in all cases, but clinical results varied from poor to excellent. Two dogs were not lame after the procedure, two dogs had improved function but were still lame, and one dog had complications necessitating amputation. 相似文献
46.
TIMOTHY B. VAIL DVM C. WAYNE McILWRAITH BVSc PhD FRCVS Dipiomate ACVS 《Veterinary surgery : VS》1992,21(4):269-272
An intraarticular osteochondral chip fracture of the distal dorsolateral aspect of the right hind middle phalanx in a 4-year-old Dutch Warmblood gelding was removed arthroscopically. Accessibility and visibility of the fragment were excellent, and there was minimal soft tissue trauma. 相似文献
47.
WENDY M. NORMAN BVSc MICHAEL H. COURT BVSc Dipiomate ACVA NICHOLAS H. DODMAN BVMS Dipiomate ACVA FRANK S. PIPERS DVM PhD Dipiomate ACVIM 《Veterinary surgery : VS》1992,21(6):491-493
Muscle surface capillary blood flow was measured in the biceps femoris and lateral head of the triceps brachii muscles in six horses before and during halothane anesthesia by using laser Doppler flowmetry. During 90 minutes of anesthesia, muscle surface capillary blood flow was reduced to 20% to 40% of preanesthetic values. Muscle surface capillary blood flow tended to be lower in dependent muscles than in nondependent muscles, and this disparity was greater in the forelimbs than in the hind limbs. 相似文献
48.
THOMAS K. DAY DVM MS Diplomate ACVA WILLIAM W. MUIR III DVM PhD Diplomate ACVA 《Veterinary surgery : VS》1994,23(3):206-212
Complete atrioventricular (AV) block was produced in 32 chloralose-anesthetized autonomically intact dogs to determine the effects of halothane, enflurane, and isoflurane on supraventricular and ventricular rate. Halothane (n = 17), enflurane (n = 6), and isoflurane (n = 9) were administered in three separate experiments in sequential minimum alveolar concentration (MAC) multiples of 0.5, 1.0, 1.5, 2.0, 1.5, and 1.0. Supraventricular rate, ventricular rate, and mean arterial blood pressure (MAP) were measured and recorded at baseline and after a 20-minute equilibration period of each inhalation anesthetic at each MAC multiple. Increasing concentrations of enflurane and isoflurane significantly decreased supraventricular rate ( P < .05). Ventricular rate was not significantly changed by sequential MAC multiples of halothane, enflurane, and isoflurane. Increasing concentrations of halothane, enflurane, and isoflurane significantly decreased MAP with enflurane producing the most significant decrease ( P < .05). Ventricular arrhythmias occurred in 5 of 17 dogs anesthetized with halothane and 1 of 9 dogs anesthetized with isoflurane. Inhalation anesthesia can significantly decrease supraventricular rate and MAP, does not alter ventricular rate, and can produce ventricular arrhythmias in dogs with complete AV block. 相似文献
49.
50.
Khursheed R Mama DVM Diplomate ACVA Ann E Wagner DVM MS Diplomate ACVA Diplomate ACVP Eugene P Steffey VMD PhD Diplomate ACVA Diplomate ECVA 《Veterinary anaesthesia and analgesia》2001,28(1):12-17
Objectives To evaluate the circulatory, respiratory and behavioral effects of isoflurane (ISO) anesthesia in llamas during mechanical ventilation and spontaneous breathing. Design Prospective randomised study. Animals Six adult, neutered male llamas (10 ± 1 years [mean ± SD], 179 ± 32 kg). Materials and methods Animals in which the minimum alveolar concentration (MAC) had been previously determined were anesthetized with ISO in oxygen. Inspired and end‐tidal (ET) ISO were sampled continuously. Arterial blood pH, respiratory and circulatory variables, and clinical signs of anesthesia were recorded at three doses (1.0, 1.5 and 2.0 times the individual animal's MAC; mean MAC value 1.13%) of ISO during spontaneous and controlled ventilation. A series of Latin squares was used to determine order of dose. Controlled ventilation (CV) (target PaCO2 38 ± 5 mm Hg [5.0 ± 0.6 kPa]) preceded spontaneous ventilation (SV) at each dose. Animals breathed spontaneously for approximately 10 minutes prior to data collection. Body temperature was maintained at 37 ± 0.6 °C. Circulatory and respiratory data were analysed with a mixed model, least squares analysis of variance, for repeated measures taken at equally spaced intervals. p < 0.05. Results Dose and mode of ventilation had significant influences on measured variables. For example, heart rate increased as dose increased; 67 ± 14 beats minute?1 at 1.0 MAC‐CV versus 77 ± 6 beats minute?1 at 2 MAC‐CV. Conversely, mean arterial pressure decreased with increasing dose; 82 ± 13 mm Hg at MAC‐CV versus 52 ± 15 mm Hg at 2 MAC‐CV. Arterial CO2 increased with increasing dose during SV; 45 ± 5 mm Hg [6 ± 0.6 kPa] at MAC versus 53 ± 4 mmHg [7 ± 0.5 kPa] at 2 MAC. Reflex activity (e.g. palpebral reflex) and muscle tone (e.g. jaw tone) decreased while eyelid aperture increased with increasing anesthetic dose. Conclusions and Clinical Relevance The influence of ISO dose and mode of ventilation on circulatory and respiratory variables in llamas is qualitatively similar to that reported in other species. Changes in reflex activity and muscle tone may be used to guide appropriate anesthetic delivery in ISO‐induced llamas. 相似文献