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Aim of the study. The study presents the application and effectiveness of ultrasound and radiological examinations in cases of fistulas located in the lumbar region. Material and methods. Six spayed bitches of different big breeds were referred for radiological examination. In four dogs, the initial clinical examination revealed the presence of fistula in the sublumbar region. In two bitches, painful mass lesions were observed in the region of the lateral abdominal wall. The ultrasonography examination of the abdominal wall and cavity was performed. In four females, radiographic examination was performed, which in two cases was extended to fistulography. Results. The ultrasound examination revealed the presence of non-physiological areas in the abdominal cavity, caudally to both kidneys. They had reduced echogenicity, characteristic of hyperplastic inflammation. Ultrasound examination also revealed the presence of structures characteristic of foreign bodies. In four cases, the course of the fistula tract and secondary extensions were visualized. In one female, tumor lesions in the ovary area were connected with the caudal part of a kidney. In this kidney, features of urinary retention were also observed. In two bitches, an enlarged uterine stump was observed. In the examined animals, the survey lateral abdominal radiograph did not reveal any pathological changes. Only in one animal, changes in the skeletal system were found. Radiographs performed in dorsal recumbency were differentiated between individual animals. Contrast examinations showed the course and secondary extensions of the fistula canal in both lateral and ventrodorsal projection. Lateral contrast radiographs revealed a significant spreading of fistula cavities and secondary extensions along the fascia lines of the abdominal wall. Conclusions. Ultrasound examination plays an important role in the diagnosis of fistulas, making it possible to perform a detailed evaluation of parenchymal organs and infected soft tissues, as well as to identify foreign bodies. However, it cannot be effectively used for a precise evaluation of the size of changes and relationships between fistula cavities and canals. Fistulography seems to be the most reliable for this purpose.
The aim of this study was to determine the effects of the catheter-aided intrathecal slow injection of low-dose bupivacain for ovariohysterectomy in 20 non-pregnant dogs. A Tuohy cannula and a spinal catheter were used for infusion. The distance between the lumbosacral-thoracolumbar spaces, was measured under sedation 24 h prior to the operation. The catheter inserted into the subarachnoid region through the lumbosacral space, was advanced into the thoracolumbar space and fixed to the region. One day later, 0.5% bupivacaine was administered via the catheter into the thoracolumbar region at a dose of 1 ml/10 kg and rate of 1 ml/min; afterwards, ovariohysterectomy was performed. Blood pressure, heart rate, respiratory rate, and rectal temperature were recorded prior to anaesthesia, and 10, 20, 30, 45 and 60 min following anaesthesia. Anaesthesia was seen to last for 1.5-3 h. No adverse effects with regard to systolic and diastolic blood pressure, heart and respiratory rates during anaesthesia were observed. With this method, a reliable, fast-acting and desirable anaesthesia was achieved. In conclusion, in cases where general anaesthesia might be dangerous, spinal anaesthesia with a catheter could provide a risk-free option.
The first case of vaginal prolapse, type III, in ovariohysterectomised 3-year-old Chow-Chow breed bitch, weighing 19 kg, was described. The bitch had developed vaginal prolapse four months after the ovariohysterectomy. Circumferential excision of the prolapsed tissue was performed and finally the bitch recovered as free of the problems. There was no evidence of recurrence of the prolapse in the period of following two years.
This study investigated changes in the coagulation profile of 10 healthy female dogs subjected to ovariohysterectomy. Blood samples were collected three times – before, directly after and 24 h after surgery. Plasma samples were analyzed to determine thrombin time (TT), prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen content, D-dimer content and antithrombin (AT) III activity. The results revealed post-operative haemostatic system disorders related to prolonged APTT, higher fibrinogen and D-dimer concentrations and lower levels of AT III activity.
The aim of the study was to determine the degree of phagocytic activity of neutrophils, lymphocyte histogenesis and total immunoglobulin level in six bitches with glandular cystic hyperplasia - pyometra complex (GCH - PC) before and after ovariohysterectomy in comparison to healthy dogs. Haematological study showed significant increases (P<0.005) in the white blood cell count and neutrophilia. After ovariohysterectomy these parameters gradually returned to normal. The phagocytic ability (expressed as phagocytic activity PA and index of phagocytic activity IPA) of neutrophils was impaired in bitches wit GCH - PC and has improved during the therapy. The degree of concanavalin A induced lymphocyte blastogenesis expressed as a stimulation index was significantly (P<0.005) depressed in affected bitches and after surgical treatment had not reached values comparable with that found in healthy dogs. The level of total immunoglobulins was significantly (P<0.05) decreased at the beginning of observation and gradually increased after treatment. The results of the present study have provided usuful information for diagnosis and prognosis of GCH - PC in bitches because the success of the treatment and recovery from the GCH - PC is in direct relation with the optimal condition of the immune system.
The aim of this study was to investigate the acute effect of spaying on antioxidant defence mechanism and lipid peroxidation in healthy bitches. Thirty-one healthy bitches were used in the study. All the animals were anaesthetised with xylazine-ketamine combination and subjected to total ovariohysterectomy (OVH). The blood glutathione (GSH), plasma malondialdehyde (MDA), ceruloplasmin, β-carotene, and retinol levels were determined in the preoperative and early postoperative periods. There was a significant decrease in blood GSH levels and an increase in plasma MDA activity at early postoperative stage as compared to the stage before the operation. There were no significant differences in the concentration of β-carotene, retinol, and ceruloplasmin levels between the preoperative and early postoperative periods. In conclusion, these findings indicate some alterations in the antioxidant defence system in the early postoperative stage. The assessment of GSH and MDA levels can be useful for the evaluation of oxidative stress after OVH in bitches.
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