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Dogs’ surgery blood pressure risks linked to size, study finds
Dog that are brachycephalic, have poor health or slower heart rates are also at higher risk.
Smaller dogs are more likely to experience low blood pressure during surgery.

Research from the Royal (Dick) School of Veterinary Studies has discovered links between the body weight of dogs, and their risk of low blood pressure under anaesthesia.

The evidence suggested that smaller dog breeds were at a higher risk of experiencing low blood pressure when they were under general anaesthetics.

The study, in collaboration with the PDSA, saw researchers examine the anaesthetic records of more than 1,700 dogs which had undergone surgical procedures. The data was collated from the Hospital for Small Animals at the University of Edinburgh’s records for 2018-2020.

Analysis discovered that dogs with a higher body mass also had lower odds of hypotension, or low blood pressure, when under anaesthesia. This could result in a reduced blood flow to their organs.

Dogs that are brachycephalic, have poor health or slower heart rates were also linked with an increased risk.

However, research also revealed that pre-anaesthetic medications and elevating the patient’s body pressure contributed to a lower risk of low blood pressure.

The research team has said their findings should heighten the awareness and preparedness of veterinary teams when performing procedures on vulnerable dogs.

The researchers say veterinary teams should monitor the blood pressure of dogs at higher risk closely during surgical or diagnostic procedures. This should include keeping treatment for hypotension readily accessible, particularly when treating small or brachycephalic dogs.

These new findings could support veterinary teams with reducing the risk of hypotension during canine surgery.

Dr Lucy Miller, a lecturer in veterinary anaesthesia who worked on the study, said: “Low blood pressure reduces blood flow to the organs, and this is something we’re keen to avoid.

“Our findings show that dogs of smaller body weight might be prone to episodes of low blood pressure. As anaesthesiologists, if we’re aware of that risk in advance we can be more prepared, know what to look out for and perhaps make changes to the anaesthetics we use or take preventative measures.”

The full study can be found in the Journal of Small Animal Practice.

Image © Shutterstock

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Antibiotic Amnesty survey opens

News Story 1
 The Responsible Use of Medicines Alliance - Companion Animal and Equine (RUMA - CA&E) has launched a survey which seeks to measure the success of this year's Antibiotic Amnesty campaign.

Its results will help the group to calculate how many unused or out-of-date antibiotics were returned as part of the campaign throughout November. Practices are also asked how they engaged with clients to raise awareness of the issue.

Participating practices can enter a prize draw to win up to 100 in vouchers for taking part. Further prizes from BSAVA and Webinar Vet will be available for practices with the best input.

The survey takes a few minutes to complete and will be running throughout December. It can be accessed via this link

Click here for more...
News Shorts
NSA survey investigates sheep worrying

The National Sheep Association (NSA) has launched its latest survey to better understand the severity of sheep worrying in the UK.

The survey will be open until Friday, 21 February 2025. UK sheep farmers are invited to share their experiences of sheep worrying by dogs and its impact on the industry.

NSA has been gathering information about sheep worrying for over 10 years as part of its campaign to raise awareness of incidents and produce new ways of educating the public.

Sheep worrying, often caused by dogs being loose near fields, can result in physical injury, miscarriage and death of animals affected.

The results of the survey will be shared with interested parties, including the UK press, before spring and ahead of lambing season next year.

For more information, or to complete the survey, visit NSA's website.