Japanese Journal of Veterinary Anesthesia & Surgery
Online ISSN : 1349-7669
Print ISSN : 0916-5908
ISSN-L : 0916-5908
Volume 25, Issue 2
Displaying 1-4 of 4 articles from this issue
  • Sanenori NAKAMA, Akiko TANAKA, Mitsuhiro NAGAMI, Munekazu NAKAICHI, Ya ...
    1994 Volume 25 Issue 2 Pages 29-36
    Published: April 30, 1994
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Antagonizing effects of atipamezole (ATI) or yohimbine (YOH) on sedation by medetomidine (MED) were examined in 18 normal dogs. All dogs of three groups were given an intramuscular injection of MED (60μg/kg B.W.), then 40 min later, dogs of group I received ATI (240μg/kg B.W., i.m.), dogs of group II received YOH (110 μg/kg B.W, i.v.), and dogs of group III (control) received saline solution (0.1 ml/kg B.W. i.m.) .
    After MED injection, mean times to sedation and recumbency in all dogs were 3.2 min and 7.2 min, respectively. Mean times from ATI, YOH and saline injections to stand were 9.2, 19.1 and 63.5 min, respectively. Mean times from the injections to walk in three groups were 9.2, 20.8 and 88.2 min, respectively. The changes in heart rates, respiratory rates, blood pressure, body temperature and blood glucose levels were not significantly different between groups I and II.
    From these results, it is suggested that the administration of ATI or YOH reversed the MED-induced sedation rapidly, and that the effect of ATI revealed a more certain and smooth than YOH.
    Download PDF (849K)
  • Satoko SUGIYAMA, Taiichiro KUBOTA, Sigeo TANAKA, Kei SATO
    1994 Volume 25 Issue 2 Pages 37-41
    Published: April 30, 1994
    Released on J-STAGE: December 09, 2010
    JOURNAL FREE ACCESS
    Two 0.5 mm∅×5 mm platinum electrodes were inserted into the femoral bone marrow of the rabbits and galvanized for 14 days with a constant current of 20 μA and a current of varying voltage 2.0-2.2 V. The results were as follows. The application of 20 μA induced necrosis, degeneration, as well as gas generation in the tissue surrounding the anode in the bone marrow. And the osteocortex near the anode was hypertrophic. The stimulation of 2.0-2.2 V proliferated callus around the cortex holes bored for the anode and cathode.
    Thus electrical stimulation accelated osteogenesis mainly in the injured area of the periosteum and the bone marrow. In addition, the ostegenesis was faster at the periosteum than the bone marrow, and at the cathode than the anode.
    Download PDF (4934K)
  • Masanari NAKAYAMA, Hitomi TUJIOKA, Hiroshi TANAKA, Toshiko NIWA, Tokum ...
    1994 Volume 25 Issue 2 Pages 43-48
    Published: April 30, 1994
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Cholecystoduodenostomy was performed in a 10-year-old male Yorkshire Terrier with extrahepatic biliary obstruction following acute pancreatitis. Post-operative upper gastrointestinal radiography using metrizamide showed reflux of the contrast material into the gallbladder and subsequont smooth drainage into the duodenum.
    Postoperative recovery of general conditions of the dog was rapid. The abnormal values in blood chemistry reversed to normal range. By 18 months after the surgery, the dog showed no signs of recurrence of pancreatitis and cholangitis. Thus, It is suggested that cholecystoduodenostomy is one of the very effective treatments in this disease.
    Download PDF (5659K)
  • Takashi UCHIYAMA, Yutaka MIZUNO, Atsushi KUBO, Mutsuki ISHIMARU, Toshi ...
    1994 Volume 25 Issue 2 Pages 49-55
    Published: April 30, 1994
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Six horses were anesthetized with isoflurane and positioned in right lateral recumbency. End expiratory isoflurane concentration was maintained at 1.7±0.1% and arterial carbon dioxide was maintained at 40±5 mmHg by controlled mechanical ventilation. Three doses of dobutamine (0.5, 1.0 and 2.0 μg/kg/min) were infused and hemodynamic responses were measured. Mean arterial pressure significantly increased dose-dependently by dobutamine infusions. Systemic vascular resistance also increased significantly but the response was not dose-dependent. Stroke volume slightly increased by dobutamine infusions at a dose of 0.5 μg/kg/min and clearly increased at doses of 1.0 and 2.0 μg/kg/min. Heart rate slightly decreased at doses of 0.5 and 1.0 μg/kg/min of dobutamine and slightly increased at a dose of 2.0 μg/kg/min. Accordingly, cardiac output was not significantly changed at a dose of 0.5μg/kg/min of dobutamine, but a slight increase in cardiac output at a dose of 1.0 μg/kg/min and a significant increase at a dose of 2.0 μg/kg/min were observed. It was considerd that increased mean arterial pressure by dobutamine infusion solely depended on the increase in systemic vascular resistance at a dose of 0.5 μg/kg/min and on the increases in both systemic vascular resistance and cardiac output at 1.0 or 2.0 μg/kg/min.
    Download PDF (701K)
feedback
Top