Australian Veterinary Journal最新文献

A 3-year-old crossbreed dog (case 1) and a 3-month-old German Shorthaired Pointer (case 2) were presented for acute signs of encephalopathy. A portosystemic shunt (PSS) was suspected based on clinical context and laboratory exam results and was confirmed on computed tomography (CT) angiography in both cases. A left-sided azygos (case 1) and right-sided azygos (case 2) continuation of an interrupted caudal vena cava (CVC) and a situs ambiguous (SA) were also observed and considered as incidental findings. Both dogs underwent PSS surgical correction. Postsurgical follow-up imaging procedures suggested concomitant primary hypoplasia of the portal vein (PHPV) in both cases.

Lumpy skin disease (LSD) poses a significant threat to animal welfare and leads to economic losses in affected countries. LSD outbreaks may also impact trade and regional relationships. South and Southeast Asia, with its dense livestock population and intricate trade networks, are susceptible to LSD outbreaks. Indonesia confirmed its first LSD cases in March 2022, leading to substantial livestock losses by August 2023. Australia, an important player in the global beef industry, faced trade disruptions due to LSD concerns raised by Indonesia and Malaysia, claims that were refuted by Australian authorities. The dispute highlights the need for good surveillance. EPIWATCH®, employing artificial intelligence, provides real-time outbreak signals, and spatial analysis can identify LSD hotspots, leading to timely interventions. This study uses data collected by the EPIWATCH® open-source disease surveillance system at the University of New South Wales in 2022 and 2023 and compares it for timeliness and completeness with data available on the World Animal Health Information System (WAHIS). We found more timely reports of LSD outbreaks in EPIWATCH® compared to WAHIS. In conclusion, open-source surveillance tools like EPIWATCH® can provide timely alerts of disease emergence, such as LSD outbreaks in South and Southeast Asia, which can supplement formal reporting systems.

This report describes a suspected case of paraneoplastic syndrome of inappropriate antidiuretic hormone (SIADH) in a 5-year-old male entire Australian Kelpie associated with a gastric adenocarcinoma. The dog had a history of chronic vomiting and presented with hyponatraemia, hypokalaemia, hypochloraemia and increased urinary sodium. Computed tomography identified the presence of a gastric tumour and histopathology confirmed a pyloric gastric adenocarcinoma. Removal of the tumour via a Billroth I procedure resulted in rapid resolution of electrolyte derangements. The dog was still alive six months postoperatively with no recurrence of either SIADH or tumour at the time of publication.

In February 2023, a report of morbidity and mortality in waterbirds triggered a collaborative regional wildlife disease outbreak investigation and response, led by Parks Victoria. Triage, rehabilitation and diagnosis of sick and dead birds were undertaken by Zoos Victoria (ZV), Agriculture Victoria, Vets for Compassion, Wildlife Victoria and Melbourne Veterinary School (MVS). The field response focused on collection of sick and dead birds for wildlife welfare, for diagnosis, and to reduce environmental contamination. Botulism was suspected, based on clinical signs and lack of significant gross pathology, and this diagnosis was confirmed by PCR testing. Low pathogenicity avian influenza (LPAI) viruses non H5 or H7 were detected in two birds and ruled out in all in others tested. These incidental, non-clinical LPAI detections are considered part of the natural wild bird virus community in Australia. A number of elements contributed to the collaborative effort. Regional individuals had the necessary connections for reporting, collecting and transporting birds. There was rapid determination by the Victorian Department of Energy, Environment and Climate Action (DEECA) that Parks Victoria, as the land managers, should lead the response. Zoos Victoria provided capacity and expertise in wildlife triage and rehabilitation, and Agriculture Victoria, ZV and MVS were responsible for veterinary management of the response and diagnosis. Field investigation and response were conducted by Parks Victoria, Agriculture Victoria, MVS and veterinary teams from Vets for Compassion and Wildlife Victoria. Wildlife Health Australia (WHA) provided guidance and information, approved National Significant Disease Investigation Program funding and captured the event in the national wildlife health information database. Communication and media were important for community understanding of the event.

Quinn, CT. What is the best treatment for hypotension in healthy dogs during anaesthesia maintained with isoflurane? Aust Vet J 2024;102:264–273. https://doi.org/10.1111/avj.13318

Terminological or typographical errors that affected the interpretation of the article have been amended throughout the above article. These corrections were due to copyediting mistakes that were not originally addressed during the preparation and publication of the original article. Corrections were made in the following sections.

Abstract: A typographical error regarding volatile anaesthetic agents has been amended.

Abbreviations: The term ‘urine output’ has been corrected.

Clinical scenario: Terminological or typographical errors that affected the interpretation of the text have been amended.

Critical appraisal of the evidence: Terminological or typographical errors that affected the interpretation of the text have been amended.

Table 2: The terminology ‘blood loss or prolonged water deprivation’ has been amended.

Table 4: Corrections have been made to amend numbers that should be represented as percentages.

Conflicts of interest and Sources of Funding: The correct name for ‘Charles Sturt University’ has been amended.

We apologize for the errors.

Buruli ulcer is a chronic ulcerative disease of the skin and subcutaneous tissues caused by infection with Mycobacterium ulcerans. Although Australian possums are known to be susceptible to Buruli ulcer, many aspects of the disease in possums, including welfare impacts, remain largely unreported. Severe clinical Buruli ulcer was identified in four common ringtail possums (Pseudocheirus peregrinus) from Melbourne, Victoria. All four possums were euthanased due to the presence of deep ulcerative lesions on paws, with extensive tissue necrosis that exposed bones and tendons in three cases. Histologically, there was severe ulcerative necrotising pyogranulomatous dermatitis, panniculitis and myositis, with intralesional acid-fast bacteria. M. ulcerans was detected by real-time PCR in all swabs, tissues and faeces collected from all four cases. Buruli ulcer may be an important and under-recognised cause of poor possum welfare in endemic areas. The physical impacts of the severe cutaneous lesions, especially those extending to underlying bones and joints, would have directly impaired the mobility of these possums, affecting navigation of their natural environments and expression of natural behaviours including foraging and socialising. Systemic distribution of M. ulcerans throughout all major internal organs, as observed here, may further impact the health and fitness of infected possums. Faecal shedding of M. ulcerans in all four cases supports the role of possums as zoonotic reservoirs. Further research is needed to investigate the epidemiology, pathogenesis and welfare impacts of Buruli ulcer in possums and to inform the design of interventions that may protect their health and welfare.