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1.
Background: Intravenous administration of human immunoglobulin G (hIVIgG) has been suggested to potentiate thromboembolism in dogs, but supportive scientific reports are lacking.
Objectives: To determine if hIVIgG therapy promotes hypercoagulability and inflammation in dogs.
Animals: Twelve healthy Beagle dogs.
Methods: Prospective, experimental trial. An hIVIgG/saline solution was infused IV at 1 g/kg BW over 8 hours to 6 dogs, and physiological saline was infused to the other 6 dogs. Blood samples were drawn before, during, and after infusion for serial measurement of indicators of coagulation and inflammation. Data were analyzed by 2-way repeated measures analysis of variance.
Results: Dogs administered hIVIgG developed mildly decreased blood platelet concentrations without thrombocytopenia (median, 200 × 103/μL; range, 150–302 × 103/μL; P < .01), leukopenia (median, 3.5 × 103/μL; range, 20–62 × 103/μL; P < .001), and mildly increased plasma total protein concentrations (median, 6.3 g/dL; range, 5.6–6.7 g/dL; P < .001). Administration of hIVIgG was also associated with increases in fibrin/fibrinogen degradation products in all dogs (either 5 μg/mL or 10 μg/dL), thrombin-antithrombin III complexes (median, 7.2 ng/mL; range, 4.9–14.2 ng/mL; P < .001), and C-reactive protein concentrations (median, 2.5 mg/dL; range, 0.5–4.3 mg/dL; P < .01).
Conclusion and Clinical Importance: Administration of hIVIgG to dogs promotes hypercoagulability and an inflammatory state. This should be further evaluated and considered when using hIVIgG in dogs with IMHA or other prothrombotic conditions.  相似文献   

2.
Background: The adrenocorticotropic hormone (ACTH) stimulation test is used to evaluate trilostane treatment in dogs with hypercortisolism.
Hypothesis: The urinary corticoid : creatinine ratio (UCCR) is a good alternative to the ACTH stimulation test to determine optimal trilostane dose.
Animals: Eighteen dogs with pituitary-dependent hypercortisolism.
Methods: In this prospective study, the dose of trilostane was judged to be optimal on the basis of resolution of clinical signs of hypercortisolism and results of an ACTH stimulation test. The owners collected urine for determination of UCCR at 2-week intervals for at least 8 weeks after achieving the optimal trilostane dose.
Results: The UCCRs were significantly higher before treatment (11.5–202.0 × 10−6; median, 42.0 × 10−6) than at rechecks 2 months after optimal dosing, but they did not decrease below the upper limit of the reference range in the majority of dogs. The UCCRs of 11 dogs that initially were dosed insufficiently (range, 7.5–79.0 × 10−6; median, 31.0 × 10−6) did not differ significantly from UCCRs when the dosage was optimal (8.2–72.0 × 10−6; median, 33.0 × 10−6). Post-ACTH cortisol concentrations did not correlate significantly with UCCRs at rechecks during trilostane treatment. Long-term follow-up indicated that the decrease in UCCR below the upper limit of the reference was associated with hypocortisolism.
Conclusion and Clinical Importance: The UCCR cannot be used as an alternative to the ACTH stimulation test to determine the optimal dose of trilostane, but might be helpful in detecting dogs at risk for developing hypocortisolism during trilostane treatment.  相似文献   

3.
Purpose  To determine the effects of a standardized intravenous dose of an α-2 agonist (Domitor®, Orion Pharma, distributed by Pfizer Animal Health, Exton, PA) on the electroretinogram (ERG) response in normal dogs.
Methods  Twenty-five normal dogs were used to collect ERG responses including a- and b-wave implicit times (IT) and amplitudes (AMP) before and after administration of medetomidine. Dogs were dark adapted for 20 min and ERGs were obtained using the HMsERG (RetVetCorp Inc., Columbia, MO). The QuickRetCheck protocol (Narfström) was employed to provide the following flash intensities: 10 mcd s/m2, 3 cd s/m2, and 10 cd s/m2. ERGs were repeated after 375 µg/m2 of medetomidine intravenously. Statistical analysis of the difference between the responses before and after medetomidine at all flash intensities was performed using a mixed effects model for anova .
Results  The P value for the effect of medetomidine on each of the ERG responses was < 0.01. The estimates of the effect of medetomidine were (+)1.35 ms, (–)23 µV, (+)3.16 ms, and (–)47 µV for the a-wave IT, a-wave AMP, b-wave IT, and the b-wave AMP, respectively.
Conclusions  Medetomidine significantly prolongs the implicit time and lowers the amplitude response of both the a- and b-waves in normal dogs at all flash intensities examined. Clinically, however, medetomidine only minimally affects the retinal responses and is a viable choice for use in dog ERGs.  相似文献   

4.
Background: Response and adverse reactions to combined gemcitabine (GEM) and carboplatin (CARBO) therapy in dogs with carcinomas are not documented.
Hypothesis: GEM and CARBO are safe for the treatment of dogs with carcinomas.
Animals: Thirty-seven dogs with histologically or cytologically confirmed carcinomas.
Methods: Prospective clinical trial. Dogs were treated with GEM (2 mg/kg, 20–30-minute infusion IV) on Days 1 and 8 and 4 hours later, CARBO (10 mg/kg IV) on Day 1. The cycle was repeated on Day 22.
Results: Thirty-seven dogs (29 with measurable tumor) received a median of 2 cycles (range 0.5–6) for a total of 101 cycles administered. Twelve dogs (32%) developed neutropenia (3 Grade 3, and 5 Grade 4) and 9 (24%) thrombocytopenia (2 Grade 3, and 1 Grade 4). Dogs >20 kg were twice as likely to develop thrombocytopenia ( P = .023). Twenty-seven dogs (73%) had evidence of gastrointestinal (GI) toxicosis, but most signs were of mild to moderate severity and self-limiting. One dog died of treatment-related complications. Overall tumor response rate was 13%. One dog with metastatic prostatic carcinoma achieved a complete remission and 1 dog with intestinal adenocarcinoma and 1 with tonsillar squamous cell carcinoma achieved partial remission. Twelve dogs achieved stable disease for a median of 72 days.
Conclusion and Clinical Importance: GEM and CARBO combination causes mild to moderate hematologic and GI toxicosis in dogs with carcinoma. Response rate in this study was modest, and optimization of dosing of this combination is required.  相似文献   

5.
Introduction:  Over‐expression of COX‐2 has been observed in several human and animal malignancies and is implicated in carcinogenesis through the conversion of arachidonic acid to PGE‐2. Use of platinum‐containing cytostatic agents and/or (non‐)specific COX‐2 inhibitors, has been reported as a treatment option for canine oral non‐tonsillar squamous cell carcinomas (ONT‐SCC). However, no study describes the effect of a combination of carboplatin and piroxicam on this tumor type.
Methods:  7 dogs with a T3 (WHO‐TNM) ONT‐SCC were treated with piroxicam and carboplatin. Five had bone involvement and no detectable metastasis. Two dogs without bone involvement had metastasis in the regional lymph nodes. Piroxicam was given orally 0.3 mg/kg s.i.d. Each dog was scheduled to receive between 6 and 12 carboplatin infusions (300 mg/m2 i.v.) at 3 week intervals. Ondansetron and metoclopramide were used as anti‐emetic agents. The dogs are planned to receive piroxicam on a lifelong basis.
Results:  Complete response (CR) without adjuvant surgery was achieved in 4 of the 7 dogs. Two dogs needed adjuvant surgery to achieve CR. One dog had progressive disease and was euthanised 231 days after start of therapy. All the others were still alive and in CR at date of analysis. Median follow‐up was 335 days (107–689 days).
Conclusions:  Our study suggests that a combination of piroxicam and carboplatin is a useful treatment option for canine ONT‐SCC. All dogs tolerated therapy well and the 57% response rate for reaching a complete and durable remission without adjuvant surgery is promising.  相似文献   

6.
Fourteen dogs with histologically-confirmed transitional cell carcinoma (TCC) of the urinary bladder were treated with 300 mg/m2 carboplatin every 3 weeks. Response to therapy was assessed with abdominal radiography, double contrast cystography, urinary bladder ultrasonography and thoracic radiography before therapy and at 6–week intervals during therapy. Dogs were monitored for hematologic toxicity with a CBC and platelet count performed immediately before and 10 to 14 days after carboplatin treatment. Tumor responses included progressive disease in 11 dogs and stable disease in 1 dog. Two dogs were euthanized due to carboplatin toxicity before assessment of tumor response. Toxicity included thrombocytopenia with or without neutropenia in 7 dogs and gastrointestinal toxicity in 6 dogs. Carboplatin therapy was not beneficial in the treatment of TCC in the 14 dogs in this study.  相似文献   

7.
Background: Multidrug resistance is the most common cause of treatment failure in dogs with multicentric lymphoma. 5-(3,3-Dimethyl-1-triazeno)-imidazole-4-carboxamide (DTIC) is an atypical alkylator used as standard treatment in human Hodgkin's lymphoma, and has been effective in combination treatment to treat resistant lymphoma in dogs. However, no data are available on the use of DTIC as a single agent in the treatment of relapsed canine lymphoma.
Hypothesis: Single-agent DTIC is effective and safe in treating dogs with lymphoma that relapsed or failed to respond to previous chemotherapy.
Animals: Forty client-owned dogs with relapsed lymphoma.
Methods: Dogs were eligible for the retrospective study if they had a histologically or cytologically confirmed diagnosis of lymphoma and had relapsed. Dogs received DTIC (800–1,000 mg/m2 every 2–3 weeks as a 4–5-hour IV infusion) and were evaluated for response rate and duration. Hematologic and gastrointestinal toxicity was assessed.
Results: The overall response rate for dogs being treated with DTIC was 35% (14 dogs) with a median progression-free interval of 43 days. Thirteen dogs had a partial response and 1 dog had a complete response. Stable disease was achieved in 3 dogs. Mild gastrointestinal toxicity was reported in 3 dogs posttreatment. Thrombocytopenia was the principal toxicity observed 7–14 days after the treatment. Treatments were delayed because of thrombocytopenia.
Conclusions: DTIC, when used alone, is effective in the treatment of dogs with relapsed lymphoma.  相似文献   

8.
Objective  To investigate the effects of a low-dose constant rate infusion (LCRI; 50 μg kg−1 minute−1) and high-dose CRI (HCRI; 200 μg kg−1 minute−1) lidocaine on arterial blood pressure and on the minimum alveolar concentration (MAC) of sevoflurane (Sevo), in dogs.
Study design  Prospective, randomized experimental design.
Animals  Eight healthy adult spayed female dogs, weighing 16.0 ± 2.1 kg.
Methods  Each dog was anesthetized with sevoflurane in oxygen and mechanically ventilated, on three separate occasions 7 days apart. Following a 40-minute equilibration period, a 0.1-mL kg−1 saline loading dose or lidocaine (2 mg kg−1 intravenously) was administered over 3 minutes, followed by saline CRI or lidocaine LCRI or HCRI. The sevoflurane MAC was determined using a tail clamp. Heart rate (HR), blood pressure and plasma concentration of lidocaine were measured. All values are expressed as mean ± SD.
Results  The MAC of Sevo was 2.30 ± 0.19%. The LCRI reduced MAC by 15% to 1.95 ± 0.23% and HCRI by 37% to 1.45 ± 0.21%. Diastolic and mean pressure increased with HCRI. Lidocaine plasma concentration was 0.84 ± 0.18 for LCRI and 1.89 ± 0.37 μg mL−1 for HCRI. Seventy-five percent of HCRI dogs vomited during recovery.
Conclusion and clinical relevance  Lidocaine infusions dose dependently decreased the MAC of Sevo, did not induce clinically significant changes in HR or arterial blood pressure, but vomiting was common during recovery in HCRI.  相似文献   

9.
Objective  To evaluate and to validate the accuracy of the Perkins® handheld applanation tonometer in the measurement of IOP in dogs and cats.
Animals  Twenty eyes from 10 dogs and 10 cats immediately after sacrifice were used for the postmortem study and 20 eyes from 10 clinically normal and anesthetized dogs and cats were used for the in vivo study. Both eyes of 20 conscious dogs and cats were also evaluated.
Procedure  Readings of IOP postmortem and in vivo were taken using manometry (measured with a mercury column manometer) and tonometry (measured with a Perkins® handheld applanation tonometer). The IOP measurement with Perkins® tonometer in anesthetized and conscious dogs and cats was accomplished by instillation of proxymetacaine 0.5% and of 1% fluorescein eye drops.
Results  The correlation coefficient ( r 2) between the manometry and the Perkins® tonometer were 0.982 (dogs) and 0.988 (cats), and the corresponding linear regression equation were y  = 0.0893 x  + 0.1105 (dogs) and y  = 0.0899 x  + 0.1145 (cats) in the postmortem study. The mean IOP readings with the Perkins® tonometer after calibration curve correction were 14.9 ± 1.6 mmHg (range 12.2–17.2 mmHg) in conscious dogs, and were 15.1 ± 1.7 mmHg (range 12.1–18.7 mmHg) in conscious cats.
Conclusion  There was an excellent correlation between the IOP values obtained from direct ocular manometry and the Perkins® tonometer in dogs and cats. The Perkins® handheld tonometer could be in the future a new alternative for the diagnosis of glaucoma in veterinary ophthalmology.  相似文献   

10.
The purpose of this study was to evaluate the efficacy and toxicity of an intensified dose protocol with no maintenance phase for the treatment of canine lymphoma. Forty-nine dogs all weighing more than 15 kg were entered. Dogs were staged and treated with a modified version of the University of Wisconsin (UW)-Madison protocol for lymphoma. Modifications included increased dosages of cyclophosphamide (250 mg/m2 compared to 200 mg/m2) and doxorubicin (37.5 mg/m2 compared to 30 mg/m2), with no crossover to chlorambucil or methotrexate. After 25 weeks on protocol (17 treatments), therapy was discontinued and dogs were monitored for relapse on a monthly basis. Disease-free interval (DFI) and overall survival were compared to 55 historical controls treated with the UW-Madison protocol. The 2 groups were comparable with respect to age, sex, breed, stage, presence of hypercalcemia, and CD3 status; a trend toward more substage b dogs was present in the high-dose group ( P = .076). When comparing response rate, DFI, death due to disease, and death due to treatment-related toxicity, more dogs were dead due to toxicity ( P < .001; odds ratio = 8.8) in the high-dose group. Overall survival between the high-dose and control groups did not differ significantly ( P = .55) at 270 and 318 days, respectively. The intensified dose protocol is an option for owners who are willing to risk higher toxicity for a shorter protocol with no statistical difference in survival from the UW-Madison protocol.  相似文献   

11.
The neurons in bilateral superior cervical ganglia (SCG) innervating the chick pineal gland were labelled by using the technique of retrograde axonal labelling with cholera toxin B subunit linked to horseradish peroxidase (CTB-HRP). To our results, perikarya of these sympathetic neurons distributed from rostral to caudal in the SCG, and mainly localized in the opposite side of the paravertebral trunk. The fibres of these neurons were collected by the cephalic carotid nerve. According to the sizes of somal area and dendritic field, these sympathetic neurons projecting to the pineal gland were classified into four major groups: group I cells (52.4%) with a small somal area (303.5 μm2 on average) and narrow dendritic field (3767.8 μm2 on average), group II cells (39.0%) with a middle-sized somal area (473.3 μm2) and middle-sized dendritic field (7522.2 μm2), group III cells (6.4%) with a middle-sized somal area (473.4 μm2) and wide dendritic field (13 104.4 μm2), and group IV cells (2.2%) with a large somal area (940.7 μm2) and wide dendritic field (14 553.2 μm2). Of these pineal projecting neurons, most took on a lesser dendritic field. The neurons with small or middle-sized dendritic field from group I and II were about 91.4% of the total neurons labelled with CTB-HRP, and the neurons with wide dendritic field from group III and IV were less with 8.6%.  相似文献   

12.
Nineteen dogs with histologically confirmed soft tissue sarcomas of the extremities were treated with a combination of marginal surgery and intra-operative chemotherapy in the form of cisplatin in a biodegradable implant delivery system (Atrigel®; Atrix Laboratories, Fort Collins, Co, USA). None of the dogs had evidence of metastasis at time of treatment. The median dose of cisplatin was 52.1 mg/m2 (mean 55.4 mg/m2, range 18.5–108.6 mg/m2). Wound complications were noted in 16 dogs (84.2%). Median follow-up time was 874 days (mean 777 days, range 125–1463 days). Nine dogs (47.3%) were alive at the time of analysis. Local recurrence occurred in three dogs (16.6%). The time to recurrence was 214, 264 and 874 days.  相似文献   

13.
Background: Heatstroke in dogs is often fatal and is associated with a high prevalence of secondary complications. Peripheral nucleated red blood cells (NRBC) occur in dogs with heatstroke, but their association with complications and the outcome is unclear.
Hypothesis: Peripheral NRBC are common in dogs with heatstroke and have prognostic significance.
Animals: Forty client-owned dogs with naturally occurring heatstroke.
Methods: Prospective, observational study. Dogs were followed from presentation to discharge or death. Serum biochemistry and coagulation tests were performed at presentation. CBC and evaluation of peripheral blood smears were performed at presentation and every 12 hours. The relative and the absolute NRBC numbers were calculated.
Results: Presence of NRBC was observed in 36/40 (90%) of the dogs at presentation. Median relative and absolute NRBC were 24 cells/100 leukocytes (range 0–124) and 1.48 × 103/μL (range 0.0–19.6 × 103/μL), respectively. Both were significantly higher in nonsurvivors (22) versus survivors (18) and in dogs with secondary renal failure and DIC versus those without these complications. Receiver operator curve analysis of relative NRBC at presentation as a predictor of death had an area under curve of 0.92. A cut-off point of 18 NRBC/100 leukocytes corresponded to a sensitivity and specificity of 91 and 88% for death.
Conclusions and Clinical Importance: Relative and absolute numbers of peripheral NRBC are clinically useful, correlate with the secondary complications, and are sensitive and specific markers of death in dogs with heatstroke, although they should never be used as a sole prognostic indicator nor should they replace clinical assessment.  相似文献   

14.
Background: Few effective drugs are available to treat dogs with locally aggressive or metastatic mast cell disease.
Hypothesis: Vinorelbine, a semisynthetic derivative of vinblastine, is an effective drug for the treatment of canine mast cell tumors (MCT).
Animals: Twenty-four dogs with cutaneous MCT.
Methods: Dogs with at least 1 measurable, cytologically confirmed, and previously untreated cutaneous MCT received a single treatment with vinorelbine at the previously established dosage of 15 mg/m2 IV. Tumor measurements and CBC were evaluated before and 7 days after treatment. Adverse events were graded according to Veterinary Cooperative Oncology Group (VCOG) guidelines.
Statistics: Data were accrued in accordance with a Simon's 2-stage design with a noninteresting response rate of .05, a target response of .25, and α and β values of .10.
Results: Three of 24 dogs (13%) had a response to treatment, including 1 measurable complete response and 1 measurable partial response. The 3rd dog had microscopic complete response to treatment with stable measurable disease. Twenty other dogs (83%) had stable disease and 1 dog (4%) had progressive disease. Neutropenia occurred in 13 dogs (54%) (grade 1, n = 4; grade 3, n = 6; grade 4, n = 3). Gastrointestinal toxicity occurred in 11 dogs (46%) (anorexia: grade 1, n = 3; grade 2, n = 1; grade 3, n = 1; diarrhea: grade 1, n = 2; grade 3, n = 1; vomiting: grade 1, n = 5; grade 3, n = 1).
Conclusions and Clinical Importance: Vinorelbine was associated with an overall response rate of 13% and a high prevalence of neutropenia. Additional studies are indicated to determine if repeated dosing of vinorelbine or combination of vinorelbine with other drugs increases the observed biologic activity against canine MCT.  相似文献   

15.
Objective  To compare the effects of morphine (MOR), methadone (MET), butorphanol (BUT) and tramadol (TRA), in combination with acepromazine, on sedation, cardiorespiratory variables, body temperature and incidence of emesis in dogs.
Study design  Prospective randomized, blinded, experimental trial.
Animals  Six adult mixed-breed male dogs weighing 12.0 ± 4.3 kg.
Methods  Dogs received intravenous administration (IV) of acepromazine (0.05 mg kg−1) and 15 minutes later, one of four opioids was randomly administered IV in a cross-over design, with at least 1-week intervals. Dogs then received MOR 0.5 mg kg−1; MET 0.5 mg kg−1; BUT 0.15 mg kg−1; or TRA 2.0 mg kg−1. Indirect systolic arterial pressure (SAP), heart rate (HR), respiratory rate ( f R), rectal temperature, pedal withdrawal reflex and sedation were evaluated at regular intervals for 90 minutes.
Results  Acepromazine administration decreased SAP, HR and temperature and produced mild sedation. All opioids further decreased temperature and MOR, BUT and TRA were associated with further decreases in HR. Tramadol decreased SAP whereas BUT decreased f R compared with values before opioid administration. Retching was observed in five of six dogs and vomiting occurred in one dog in MOR, but not in any dog in the remaining treatments. Sedation scores were greater in MET followed by MOR and BUT. Tramadol was associated with minor changes in sedation produced by acepromazine alone.
Conclusions and clinical relevance  When used with acepromazine, MET appears to provide better sedation than MOR, BUT and TRA. If vomiting is to be avoided, MET, BUT and TRA may be better options than MOR.  相似文献   

16.
Cell numbers of known species of nitrate- and nitrite-reducing bacteria, Selenomonas ruminantium, Veillonella parvula and Wollinella succinogenes , in the rumen of goats (25–30 kg) were estimated by competitive polymerase chain reaction (PCR). The number of S. ruminantium was the largest of the three species examined, and tended to be greater in goats fed a high-concentrate diet (5.6 × 107 cells/mL rumen fluid) than in goats fed a high-roughage diet (1.3 × 107 cells/mL). The number of V. parvula tended to be greater when goats were fed a high-roughage diet (6.7 × 103/mL) than when fed a high-concentrate diet (3.2 × 103/mL). The number of W. succinogenes was below the detectable level (< 1.0 × 102/mL) when a high-concentrate diet was fed, but was significantly increased by feeding a high-roughage diet (1.6 × 103/mL). Addition of potassium nitrate (6 g/day) to the high-concentrate diet tended to increase V. parvula , and significantly increased W. succinogenes , indicating that these two bacteria can be increased by feeding a diet containing nitrate.  相似文献   

17.
The effects of buprenorphine in combination with acepromazine, midazolam or medetomidine were compared in dogs. Induction and recovery times, heart rate, respiratory rate and body temperature were measured. Posture, reaction to noise, analgesia and muscle relaxation were assessed and a global score of "sedation-analgesia" was calculated. There were 3 groups of 4 animals: group 1 received 0.1 mg.kg-1 acepromazine IM and 20 minutes later, 10 g.kg-1 buprenorphine IV; group 2 received 1 mg.kg-1 midazolam IV simultaneously with 10 ig.kg-1 buprenorphine IV and group 3 received 1 mg/m2 body surface area medetomidine IM and 20 minutes later, 10 Hg.kg-1 buprenorphine IV. Only one dog given acepromazine and buprenorphine reached a "sedation-analgesia" stage, denned as the inability to stand together with the absence of reaction to stimulation, including pain. Animals in this group showed a decrease in respiratory rate and in body temperature. None of the dogs given midazolam and buprenorphine became sedated or showed signs of analgesia. Following this combination, the dogs were excited and showed dysphoric reactions which disappeared within 20 minutes.
All of the dogs given medetomidine and buprenorphine showed good sedation and analgesia lasting more than 20 minutes. This drug combination produced a decrease in heart and respiratory rates and body temperature.  相似文献   

18.
Inhalt: 1. In Versuchen an insgesamt 24 weiblichen Schweinen wurde die Verteilung von Spermien im Uterus und Eileiter 4 bis 6 Stunden und 20 Minuten nach künstlicher Besamung mit 20 × 109 Spermien untersucht. Die Spermien waren normal oder tief-gefroren konserviert und in einem Verdünner von 120 und 100 ml suspendiert.
2. Von den ehemals tiefgefrorenen Samenzellen konnten 4 bis 6 Stunden post inseminationem nur 0,0073 × 106 (weniger als 1%) wiedergefunden werden, während in Vergleichsgruppen mit normal konserviertem Sperma 0,4080 × 106 bzw. 52,4770 × 106 Spermien ermittelt wurden.
20 Minuten nach der Insemination wurden TGN2-Spermien in ähnlicher Zahl wie normal konservierte gefunden.
Nach Insemination mit abgetöteten Spermien waren im Eileiter keine Samenzellen nachzuweisen.  相似文献   

19.
Objective— To evaluate the long-term outcome after decompressive surgery in dogs with degenerative lumbosacral stenosis (DLS), using force plate analysis (FPA) and owner questionnaires.
Study Design— Prospective clinical study.
Animals— Dogs with DLS (n=31) and 24 clinically normal Labrador Retrievers.
Methods— FPA was performed before surgery (31 dogs) and at 3 days, 6 weeks, 6 months (each, 31 dogs) and ≥1.5 years (12 dogs) after surgery. Peak vertical forces (Fz+), braking (Fy+), and propulsive forces (Fy−), and the corresponding impulses were determined. Questionnaires were completed by the owners before and at 6 months and ≥1.5 years after surgery.
Results— Fy− of the pelvic limbs and the ratio pelvic/thoracic of Fy− (P/TFy−) were significantly smaller in dogs with DLS than controls. Fy− and P/TFy− decreased significantly 3 days after surgery, and increased during 6 months follow-up, but with long-term follow-up the values remained the same and were smaller than controls. From questionnaires there was a significant improvement after surgery compared with function before surgery. Most owners were satisfied with outcome after surgery.
Conclusions— Propulsive forces of the pelvic limbs in dogs with DLS are impaired and are partially restored by decompressive surgery.
Clinical Relevance— Owner's questionnaires illustrate that decompressive surgery restores function as perceived by owners whereas FPA continues to show impaired propulsive forces for the pelvic limbs.  相似文献   

20.
The records of 33 dogs treated with radiation therapy for nontonsillar oral squamous cell carcinoma (SCC) were reviewed to determine which, if any, prognostic factors affected local tumor recurrence and survival. Information was collected on nine factors: age, sex, anatomic subsite, intraoral location, bone involvement, radiation dose, portal size, and tumor recurrence. Product limit survival estimates indicated than only anatomic subsite was significantly related to disease-free interval. Mean disease-free interval was 12.0, 3.4, and 1.8 months for maxilla, mandible, and soft tissue subsites, respectively. Four factors were significantly associated with survival. The intraoral location (listed in descending survival time: rostral > caudal > rostral and caudal), tumor recurrence (no > yes), relative portal size (less than 100 cm2/m2 > greater than or equal to 100 cm2/m2), and age at diagnosis (less than or equal to 6 years > greater than 6 years) were of prognostic importance. Based on these data, a prospective randomized clinical trial for the treatment of nontonsillar oral SCC would be appropriate.  相似文献   

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