Abdominal X-rays and intravenous urography of a four-month-old male Shiba-inu (4.0 kg) that was involved in a traffic accident showed bilateral ruptures of the ureteropelvic junction. Microsurgical ureteropelvic anastomosis was performed under a microscope and a flexible catheter was positioned in the kidney using the ureter as a stent. The postoperative course was satisfactory.

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A raised multilobulated neoplastic mass appeared from the corneal surface of the right eye in a ten year old male Shih Tzu, which was receiving continued cyclosporine eye drop treatment for keratoconjunctivitis sicca (KCS). The mass was removed by a superficial keratectomy under inhaled isofulrane anesthesia. According to the histopathological examination, the mass was a squamous cell carcinoma. The carcinoma cells were corneal intraepithelial. Although some atypical cells, lymphocytes and plasma cells were apparent, the basement membrane was not affected. This is not an unusual outcome. Post operation, the corneal ulcer was treated with self-serum eye drop, antibiotics and a soft contact lens. After the corneal ulcer had healed, the KCS treatment with cyclosporine, which had been put on pause, was re-administered regularly until death. The dog had a relatively good QOL after surgery, however, a year and 5 months later, the dog died due to a metastasized carcinoma on the left side of the face.

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The combined surgical procedures with thoracic duct ligation, pericardectomy and cisterna chyli ablation were used for treating of three canine cases of chylothorax. For preoperative CT examination, all of these cases had surrounding soft tissue of the heart, which might be adipose tissue. In addition, the mean diameter ratio of vena cava to aorta of three cases was significantly larger than that of normal group. All of these three cases treated with combined surgical procedures have an uncomplicated and no recurrence postoperative course.

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Because in medial patellar luxation the patella luxates toward the inside during the extension of the stifle joint, luxation tends to recur when surgical repair is done using trochleoplasty alone. Therefore, a variety of surgical techniques are often used in combination depending on each case. The authors have devised a surgical method that, instead of deepening the trochlear groove, elevates the medial trochlear ridge of the distal femur, and applied this method to two dogs exhibiting grade 3 medial patellar luxation. The procedure is to elevate the medial crest by removing an asymmetrical wedge from the trochlear groove, rotating it 180 degrees, and replacing it in the recess. With this surgical method, the authors have successfully prevented the recurrence of luxation during the extension of the stifle joint. Both dogs had a limb operated on using this method and showed good prognosis, with no recurrent luxation or gait abnormality. Postoperative CT and radiographic images confirmed the elevation of the medial trochlear ridge.

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Among 111 ferrets, we classified and investigated them that had died of anesthesia-associated complications according to the American Society of Anesthesiologists Physical Status (ASA-PS). The mortality rate on anesthesia-associated complications of ferrets within 24 hours was 2.7% (ASA III: 2 ferrets, ASA IV: 1 ferret), and these ferrets were more than 4-year-old. In these ferrets, the main cause of death was cardiac arrest before/after surgery. Therefore, an age of 4 years or older and ASA grade of III or higher may significantly increase the risk of anesthesia-related death.

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