• Journal of Veterinary Science
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• v.24 no.3
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• pp.47.1-47.7
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• 2023

Del-Nido cardioplegia (DNc) is a single-dose cardioplegia that is widely used in human medicine because of its long duration. In this report, we describe two cases of open-heart surgery with cardiopulmonary bypass (CPB) using DNc. One dog was diagnosed with partial atrioventricular septal defect, and the other dog was diagnosed with myxomatous mitral valve disease stage D. Both dogs were treated with open-heart surgery with DNc to induce temporary cardiac arrest. No complications from DNc were observed, and the patients were discharged. Veterinary heart surgeons should consider DNc as an option for temporary cardiac arrest during open-heart surgery with CPB.

• Journal of Veterinary Clinics
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• v.40 no.5
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• pp.387-392
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• 2023

A 13-year-old intact male English Springer Spaniel presented with anorexia. Physical examination revealed a palpable abdominal mass without peripheral lymphadenopathy. Ultrasonography revealed hepatosplenomegaly and a markedly enlarged hepatic lymph node. Fine-needle aspiration of the splenic and nodal lesions revealed atypical round cells admixed with numerous histiocytes. The dog was euthanized owing to deteriorating condition despite a month of chemotherapy with lomustine. Histopathology revealed obliteration of the normal architecture of the liver, spleen, kidney, and hepatic and mesenteric lymph nodes by CD3⁺ neoplastic lymphocytes, accompanied by extensive F4/80⁺ histiocytic infiltration. This report describes a rare presentation of T-cell lymphoma with prominent histiocytic infiltration that may initially be misdiagnosed as histiocytic neoplasia in a dog.

• Journal of Veterinary Clinics
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• v.41 no.1
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• pp.60-64
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• 2024

This case report documents the rescue, clinical presentation, treatment, and recovery of pneumothorax in a female Korean water deer (Hydropotes inermis argyropus) following a vehicular collision. Severe injuries, including a confirmed rib fracture, prompted an extensive treatment plan. Computed tomography imaging confirmed pneumothorax, particularly in the left lung, necessitating thoracocentesis to alleviate the accumulated air. Post-procedural monitoring demonstrated gradual recovery, with the water deer exhibiting restored appetite after the 2nd day of thoracocentesis. Successful recovery marked by natural pneumothorax resolution allowed for treatment cessation on the 13th day after injury.

• Journal of Veterinary Clinics
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• v.41 no.2
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• pp.123-126
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• 2024

A seven-month pregnant 15-year-old Thoroughbred mare presented with acute abdominal pain to Jeju National University Equine Hospital. At presentation, a nasogastric intubation revealed 10 L of gastric reflux; rectal palpation and ultrasound revealed dilated loops and thickening of the walls of the small intestine. An exploratory laparotomy revealed strangulation of the small intestine due to a large abdominal mass. The mass was double-ligated and resected blindly due to the short pedicle. An enterectomy was not performed as intestinal motility was detected following the mass removal. Histopathological examination confirmed that the mass was a lipoma, measuring 24 cm × 16 cm × 16 cm in size. On day 8 post-surgery, the mare was discharged without complications. This case report describes the diagnosis and treatment of strangulation of the small intestine by a pedunculated lipoma, thus providing useful information on lipoma in horses.

• Journal of Veterinary Clinics
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• v.40 no.6
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• pp.452-456
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• 2023

This report presents two rare cases of gallbladder rupture in dogs with small gallbladders that did not result in bile leakage and their subsequent surgical treatment. The report includes a 5-year-old spayed female Chihuahua weighing 3.5 kg and a 9-year-old castrated male Poodle weighing 5.3 kg. Both dogs had elevated liver enzyme levels on blood chemistry. However, only the second dog (2) (Poodle) presented with hyperbilirubinemia and jaundice, whereas the first dog (Chihuahua (1)) did not display any specific clinical signs. Diagnostic imaging revealed a small gallbladder in both dogs, and the dogs were diagnosed with cholecystolithiasis (1) and extrahepatic biliary tract obstruction (2). No bile leakage-related abdominal effusion was observed. Gallbladder rupture and adhesion to the adjacent tissues were confirmed during cholecystectomy.

• Korean Journal of Veterinary Service
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• v.47 no.3
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• pp.173-178
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• 2024

In this case study, we present a rare occurrence of simultaneous primary malignant neoplasms arising from the mammary gland and uterus in conjunction with pyometra and inguinal hernia. The subject, a 16-year-old intact mixed-breed dog, exhibited tubulopapillary carcinoma of the mammary gland with grade II malignancy and uterine leiomyosarcoma. Treatment involved partial mastectomy for the mammary carcinoma and ovariohysterectomy for the uterine leiomyosarcoma. Moreover, the inguinal hernia was concurrently repaired during the tumorectomies. The patient demonstrated positive postoperative progress over a span of two years, emphasizing the effectiveness of surgical intervention in managing the coinciding pathologies in an elderly canine. This unique co-occurrence of primary malignant neoplasms originating from distinct organ systems presents valuable insights into diagnostic approaches, disease characteristics, and surgical interventions in the realm of clinical oncology.

• Journal of Veterinary Clinics
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• v.24 no.3
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• pp.441-443
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• 2007

Horner's syndrome is a group of clinical signs that results from interference with the sympathetic innervation of the globe and adnexa. Three dogs were presented with unilateral ptosis, miosis, enophthalmos and protrusion of the third eyelid. There were no other clinical signs on physical and neurological examination. On ophthalmic examination, the symptomatic eyes were diagnosed as Horner's syndrome. In order to localize the site of the lesion, pharmacological testing was performed through assessment of ocular response to the topical administration of 10% phenylephrine and clinical signs were resolved within 20 minutes. The pharmacological testing suggested that the deficit could be at the postganglionic neuron. Total resolution of clinical signs was observed within 6 months after their initial appearance without any treatment.

• Journal of Veterinary Clinics
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• v.38 no.3
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• pp.152-158
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• 2021

A 3-year-old spayed female beagle dog was presented with epiphora, severe hemorrhagic and purulent ocular discharge in the right eye (OD). A reflux of the discharge through the other canaliculi, associated with signs of chronic inflammation, was observed on cytology. Dacryocystorhinography revealed retention of contrast media ventral to the lower punctum, indicating complete obstruction and the potential presence of radiolucent foreign body. Ocular discharge subsided after the first treatment, including flushing of the nasolacrimal duct and application of topical antibiotics and corticosteroids, but clinical symptoms of the dacryocystitis waxed and waned thereafter. Surgical treatment was delayed for 8 months due to Dirofilaria immitis infection, and topical treatment and monthly flushing were maintained. On the day of operation, a foreign body was released through the fistula, while flushing for disinfection under general anesthesia, just before the surgery. Dacryocystectomy was performed to remove necrotic tissue and residual foreign body around the nasolacrimal cyst. Upon histopathologic findings, the removed foreign body was considered to be a plant, and the nasolacrimal cyst was comprised of chronic active ulcerative inflammation and necrotic tissues. At the 1-week recheck, improvement of epiphora and ocular discharge and healing of the surgical site was noted. In conclusion, nasolacrimal duct foreign body can be considered in recurrent dacryocystitis, despite nasolacrimal flushing and topical medication. In this study, dacryocystectomy was curative without recurrence of dacryocystitis or epiphora.

• Korean Journal of Veterinary Research
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• v.62 no.3
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• pp.26.1-26.7
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• 2022

This study was aimed to evaluate the prophylactic anti-glaucoma effect of topical 5% betaxolol (BTX) and 2% dorzolamide (DRZ) on the second eye in dogs with unilateral primary angle closure glaucoma (PACG). Medical records of 60 dogs with unilateral PACG who received prophylactic anti-glaucoma eyedrops in the second eye, from 2016 to 2021, were reviewed. The prophylactic effects of BTX were maintained on 28/60 (46.7%) eyes until last visit and BTX failure was observed on median 510 (range, 53-1,927) days in 32/60 (53.3%) eyes. After DRZ instillation in BTX failure eyes, the prophylactic effects were extended at median 610 (range, 157-2,270) days in 21/32 (65.6%) eyes. DRZ failure eyes (17/21, 81.0%) eyes required chemical ablation or surgical intervention due to uncontrolled intraocular pressure. The duration of prophylactic effects was decreased with aging (R² = 0.334, p = 0.006). The predominant breeds were Shih-Tzu (41.9%) and American Cocker Spaniel (30.6%) with no significant differences in survival curves (p = 0.210). The average prophylactic effects of BTX persisted more than 1.5 year and could be selected the first prophylactic eye drop in unilateral PACG. Also, early surgical intervention should be considered in prophylactic medications failure cases.

• Journal of Veterinary Clinics
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• v.41 no.1
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• pp.24-29
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• 2024

A 6-year-old spayed female French Bulldog presented with a left-sided chest wall tumor. Physical examination revealed that the tumor was firmly adhered to the chest wall. A preoperative punch biopsy of the tumor revealed a grade 2 soft tissue sarcoma (STS). On computed tomography, the tumor's dimensions were assessed as 6.5 × 5.7 × 3.5 cm, and it exhibited invasiveness near the tissue surrounding the ninth rib. The tumor size was large in comparison to the dog's chest wall area. Hence, if the traditional wide-margin resection surgery were to be performed, primary wound closure seemed impractical and could potentially result in respiratory function complications. Therefore, considering the extent of tumor invasion and grade, deep margins were established to include the removal of the eighth to tenth ribs, and a 1-cm lateral margin was designated to enable primary wound closure. To reconstruct the chest wall, polypropylene mesh was attached to the adjacent ribs and the remaining muscles were sutured and covered over the mesh. The dog exhibited a rapid recovery beginning the day after the operation. Postoperative biopsy confirmed that the tumor was a grade 2 STS, and the surgical margins were evaluated as incomplete. The owner chose to pursue follow-up observation instead of chemotherapy. In this study, the surgical approach was chosen based on the importance of functional recovery after surgery. Recent research indicates that the tumor grade is more critical for postoperative prognosis than the extent of surgical margins when removing an STS.