Showing posts with label clinical decision making. Show all posts
Showing posts with label clinical decision making. Show all posts

Friday, September 1, 2017

Pitfalls in Veterinary Surgery

You can tell its a great read when the book is tabbed.
Professor Geraldine Hunt is a trailblazing veterinary surgeon who developed, among other things, novel surgical approaches to portosystemic shunts. In the course of her work, she’s also made errors.

Every surgeon does, but Professor Hunt has shared hers in the edited textbook Pitfalls in Veterinary Surgery, in an attempt to foster a culture of learning and improving patient outcomes.

As a former student of Professor Hunt, I sought out a copy and found this a compelling read. She discusses errors, mistakes, near-misses, but – importantly – reflects on these and considers how they can be avoided, and how outcomes can be improved, in the future. It was fascinating to read that someone so unflappable, courageous and clever was kept awake at nights by concerns that many veterinarians can relate to.

Professor Hunt took some time out to answer our questions about the book.

What is your current day job? 

I retired from full-time veterinary surgery in June 2015. My husband and I bought our 46-foot Leopard catamaran (Alchemy 1) and since then we have focussed on outfitting it for off-shore cruising. We have lots of family and friends visiting for up to 3 weeks at a time, and spend most of our time away from port so I take care of logistical things like menu planning, provisioning and making sure we we know where all our supplies are stored. I learned a lot about project management in my University positions and those skills have come in very handy. During my first year of retirement, I also spent a lot of time writing and editing the book. I also help my sister from time to time in her small animal practice.



When did you realise you would specialise in surgery? 

I originally wanted to pursue small animal medicine or cardiology (once I gave up ideas of becoming an equine vet), but my partner at the time also wanted to specialise in small animal medicine, so we felt we would be more employable as a couple of we were not both in the same discipline. During my PhD, I realised I liked the challenge and reward of surgery, so that's how things went from there.

Why did you decide to write a book about pitfalls and errors? 

I was approached about writing a conventional surgical textbook, but I felt there were a number of other texts out there that were very good, and even if they had slightly different approaches or ideas to mine, I did not feel strongly that I needed to "reinvent the wheel" so to speak. However, I had identified some other things that just did not come across in regular textbooks. I felt that a personal narrative could be useful, where the reader could get into the life and mind of a surgeon on a day-to-day basis, and hopefully gain a sense of what went on behind the scenes and the process by which I made decisions, whether they ended up being right or wrong. 

You have documented cases in great detail. Were you collecting this data as you went along, ie in the hope you might write a book like this one day? 

The thought of writing this particular book did not occur to me until about two years before I retired. Fortunately, the publisher was happy to take a risk with an unconventional style of book, and to wait until I had time to write it after I stopped working. I have always used case examples in my teaching, and have taken a lot of photographs through the years, so most of the chapters were based on a topic I had presented repeatedly in rounds or in lectures.

Do you think some degree of surgical prowess is innate, or can it be completely learned? 

Surgical prowess comes from a combination of knowledge, technical skill and temperament. You can learn the first two; the third will either help, or it will be something you need to overcome. A really good surgeon has a balance between being decisive and not too timid, and being considered and thoughtful. A good surgeon can act quickly when required, but take their time under other circumstances. This might require you to push forward when you are nervous, or hold back when you are feeling confident, and takes some people well out of their comfort zone.

What do you see as some of the common errors in veterinary surgery or practice? 

I think most errors stem from being in a rush, being tired, not having good back-up and not being able to see what you are doing. 

Some of the errors discussed in the book occurred in the process of learning. How can these be reduced? 

Checklists are a proven way of reducing errors. If you have to learn something without supervision, the checklist might be as simple as, "have I read the surgical text?", "have I discussed complications with the client?", "am I familiar with the anatomy of this area", "have I discussed this with my colleagues?". In short, have you done your due diligence in preparing yourself, the client and the patient before you start.

How can vets in general practice improve their surgery while minimising risks to patients? 

Be self-reflective and honest about their skills, have regular surgical rounds with colleagues or vets in other practices, debrief on mistakes they might have made, find ways to gain practical skills, like attending wet labs or doing cadaver dissections, and invest in the correct instrumentation (including lighting, suction and magnification) depending on how intricate the procedures are.

What is the difference between an error and a mistake? 

I suspect everyone would have a slightly different view of this, but in my vocabulary I think an error relates to judgement, and a mistake relates to technical performance. Both result in an adverse outcome that could have been avoided. Surgical sequelae are different; these may occur whether an error or mistake was made or not. 

You discussed the impact of errors on patients and clients, but also on the veterinary team. How do errors impact the vet team? 

This is complex. Students and techs can feel just as guilty as vets and they may feel more helpless, because they do not have primary responsibility for the case. Different members of the team might have different ethical positions, and in the case of students, they may be trying to work out what their ethical position should be. Students, techs and reception staff may have a closer bond with clients (or even the pet) than the veterinarian, as they have been involved in nursing and communications.

Some of the cases involve errors or misunderstandings in communication with clients or referring vets. How can errors of communication lead to bad outcomes? 

Errors in communication with clients will result in misalignment of expectations (costs, prognosis, time in hospital). Errors in communication with other members of the treatment team might result in incorrect dosing, delays in treatment, or even the wrong treatment. Communication is not just "telling", or "listening".; it can be difficult, and every vet should develop a technique to help them ensure that important concepts are not only communicated, but understood by the person with whom they are communicating. Likewise, we should reflect whether we are correctly interpreting things communicated by the people with whom we are working. 

Do you have any advice for future vets or veterinarians? 

You have great passion, talent and dedication. But you will face challenges and you will make mistakes. None of us are perfect. Develop your own safety net as you progress through your career. The whole group of people and patients to whom you are responsible, and with whom you work, will make a great support team if you allow them to.


Thank you Professor Hunt for your time. You can purchase Pitfalls in Veterinary Surgery through Wiley. 

Friday, May 26, 2017

Confessions of a surgeon: Henry Marsh


Every surgeon carries within himself a small cemetery, where from time to time he goes to pray – a place of bitterness and regret, where he must look for an explanation for his failures. – Rene Leriche, La philosophie de la chirurgie, 1951

It’s not a quote you’d expect to open the autobiography of an accomplished, decorated neurosurgeon, yet Henry Marsh opens Do No Harm: Stories of Life, Death and BrainSurgery with these words.

They set the tone for a very honest account of his work – the risks (his perception versus the patient), his own anxieties and ego, the very grave consequences (a poor decision to take a few millimetres additional margin, or to retreat, can mean death, or possibly worse, for his patients), cutting though matter that holds personality, dreams, language, reason.

His patients aren’t animals, but anyone who does surgery or works in a surgical theatre, or perhaps those who have undergone neurosurgery, will be fascinated to read these cases.

And if you’re in Sydney you can meet him this weekend. Henry Marsh will be speaking at the Sydney Writer’s Festival. There are still tickets available here.

You can read an extended review of his book here.

Friday, May 5, 2017

Free resources: clinical reasoning and animal welfare

cat, love
For those who asked - Hero and I are all good following the redirected aggression incident, and I've recovered from the wound. All is well.

Want to learn more about clinical reasoning? Whether you fall into vet or medicoland, or just interested, this Massive Open Online Course is offered free from the University of Montreal. Find out more here

If you’re feeling podcasts right now, there is one by the Animal Training Academy which discusses, among other things, preventing and reducing fear in the veterinary clinic. This episode features Karolina Westlund, Associate Professor of Ethology at the University of Stockholm. She did a PhD on primate conflict resolution behaviour and has done extensive work in animal training. She stresses the potential impact of taking animal emotions seriously on animal welfare, and the discussion about fear-free vet visits is excellent. She raises some fascinating points, for example the role of fasting in contributing to stress at the vet clinic.

You can check out her blog here  or listen to the podcast here.

What is the difference between empathy and compassion? What are mirror neurons and are they the biological basis of empathy? What is “eco grief”? How do you rekindle if you are burnt out? And what are the limitations of animal welfare science?

Professor Marc Bekoff shared a podcast this morning about compassion fatigue, empathy and animal welfare. Its almost 40 minutes, but if you have some time its worth a listen.


Monday, September 5, 2016

The laws of veterinary science

A glistening beach just after sunrise and before lectures. Definitely a compelling reason to attend a regional conference.

It's said that veterinary science is more art than science, but there are also "laws" and "rules" that are often invoked in case management. 

When I went through uni it was “never let the sun set on a pyometra” and “no animal should die without the benefit of…prednisolone/doxycycline/insert pharmaceutical silver bullet of choice”. They are the sort of phrases you can almost hear your lecturer/mentor/wiser colleague saying in your brain when you’re thinking about cases.

Over the weekend I attended the AVA’s regional conference in Coffs Harbour (with its stunning, pristine beaches) and learned a couple more, courtesy of some fantastic veterinary specialists who shared their knowledge.

  • Simpson’s rule: “Only perform a diagnostic investigation if the outcome of that test will change the management of the case.”
  • Sutton’s Law: “When diagnosing, one should first consider the obvious”.
  • Idiolepsis (aka tunnel vision): the practice of making up your mind about the diagnosis and thereafter ignoring evidence to the contrary. (The cure for idiolepsis is being systematic in your approach).


Of course, these propositions are experience, not evidence-based, and just as soon as you invoke one a colleague will chime in with a counter-example showing just how useful tunnel-vision was in arriving at a diagnosis or when a random and not well-through through diagnostic test yielded a definitive answer (though such examples are few and far between). 

There was a lot more discussed at the conference, with the companion animal stream focused on gastrointestinal disease but also animal welfare. If you’ve never attended a conference in a regional area, I highly recommend it. In addition to state of the art lectures on managing diarrhoea and other GIT nasties I caught two beach sunrises and saw some stunning birdlife.  

Meanwhile in other news of the week:

Hundreds of people tragically lost their lives in a 6.2 earthquake in Amatrice, Italy on August 24. But one dog survived in the rubblefor ten days, and has been reunited with his owners. There’s no word in the article of any injuries or long-term effects, but hopefully the dog can be assessed by a veterinarian. (I suspect dehydration is a significant factor, and it is common for injuries to declare themselves once the adrenalin wears off).

Hospitals are reportedly beginning to ban “skull caps” for surgeons, replacing them with bouffant style hair nets. Someone with more spare time than I have has pointed out the differences in this workplace wear by producing a comparison (totally non-biased of course) of the anatomy ofsurgical caps.


Saturday, December 12, 2015

Festive hazards for cats and dogs, and identifying types of errors

Hero. The reason I'm not decorating with tinsel, Christmas lights or dangly baubles this year. He looks very calm and sleepy here - don't be fooled. 

If you’re putting up a Christmas tree, consider potential hazards to the feline members of your household. The appearance of a tree, covered in lights, baubles and dangly bits, is understandably tempting to curious cats.
International Cat Care has prepared a check-list of festive hazards for the cat owner, including festive foreign bodies (having surgically removed tinsel from a number of cats I can attest this is a real issue), thatyou might want to read or pass on to the cat owners in your life.

On the canine front I was interviewed by Benjamen Judd from ninemsn Pickle this week about Christmas hazards for dogs.

Finally, on the topic of errors, most professionals are taught how to manage errors – but did you know that not all errors are equal. Identifying types of errors is key in preventing further errors. This great post from mindshift explains some types of error.