Speaker A
[Music] Hello and welcome to the first episode of a two-part conversation series taking a closer look at the arthritis condition axial spondyloarthritis, or axSpA. I'm Granulary, Chief Executive of Arthritis Ireland. AxSpA is a painful chronic inflammatory disease that primarily affects the spine and sacroiliac joints. While much is understood about axSpA, it can sometimes be difficult to find accurate and reliable information. During these conversations, we will speak with medical consultants and specialists, providing you with some well-researched answers to common questions asked by those diagnosed with axSpA. I'm delighted today to be joined by Dr. Barry O'Shea, Consultant Rheumatologist from St. James's Hospital in Dublin, who has a special interest in axSpA. Hi Barry, and thank you so much for joining us today. Hi Granulary, thanks very much and thanks for inviting me to talk about my favorite condition. Yes, and I'm going to start off by asking you, you know, what exactly is axial spondyloarthritis, or what we'll refer to in this interview as axial SpA just for short? Yeah, well, and it's sometimes hard to explain this accurately, what exactly that is, but in its simplest form, axial SpA is a form of inflammatory arthritis. It predominantly affects the spine and sacroiliac joints, and that results in a lot of pain and stiffness that can affect any part of the spine right down over your sacroiliac joints, and people feel that a lot over their buttocks. In addition to that, they can get a lot of peripheral symptoms, so joints may be involved away from their spine, so it might be ankles or even their knees or feet, but it's mostly spine symptoms that is the major issue. Frequently, also get a number of other, what we call extra-spinal, so away from the spine symptoms. They're at increased risk of getting conditions like psoriasis or maybe inflammatory bowel problems and even an unusual eye inflammation condition called uveitis. Okay, and in terms of, I know that it can sometimes be seen as sort of an umbrella term for a number of different conditions that fall under this term of axial SpA. Can you tell us a little bit more about that? Yeah, you're absolutely right. So the kind of, we try and think of it now as, you say, axial, axial SpA as an overarching term to describe every phase of this condition. People might be familiar with an older term, ankylosing spondylitis or AS, and that refers to people that have established spinal involvement. The ankylosing part of it, you know, stands for fusion, so it's people that have had symptoms for many, many years. But that term really let us down when we were trying to find earlier people, people that didn't have the fusion in their spine, so people in the first few years of their conditions. So we took a step back and said there's a phase where people before their x-rays become abnormal, and sometimes you might refer to that as pre-radiographic, so the pre-radiographic phase. And frequently, we use MRIs and different methods of assessing those people to show up inflammation. So the pre-radiographic phase is the earlier phase, and there is then a progression over time to what we classically would have referred to as ankylosing spondylitis or the radiographic or the x-ray phase. But if we take a step back and just want to include early and late disease, axial SpA or axial SpA covers all of that. Okay, and for people who might be watching this, and you know, in your introduction you mentioned some of the signs and symptoms of the disease, but can you just let us know, are there any other signs and symptoms, you know, for people that are maybe experiencing back pain out there who are watching this and wonder, do I have this? Like, what are the traditional signs and symptoms of axSpA? Yeah, you're absolutely right. I mean, back pain is so common, and sure, the vast majority of people that have back pain don't have axSpA, and most people will experience back pain at some stage of their life. So really, I think it's the most common reason to present to your primary care or family doctor. So, but yeah, it's a very, it's remember it's an inflammatory condition, and inflammatory joint conditions, whether they're in your back or any other joint, have a particular pattern. So if you've got a lot of early morning stiffness, like that, not just a little bit stiff in the morning, but significant early morning stiffness where it can take 30 minutes or 60 minutes or 90 minutes to get going in the morning, and if you've got back pain that improves with activity, you're the person that's better moving around. You hate staying still, you hate sitting in the car for a long drive, you hate sitting in the bus, you even hate sitting in the waiting room because you're much better off moving around. So if you're the sort of back pain that gets better with movement, gets worse with rest, and that might go down into the buttocks, remember I mentioned those, so that's where the sacroiliac joints are, and we think that that's where things start. So if it's those or that sort of pain, and that's very different to more standard back pain. People that have more standard back pain, maybe from disc problems or strain, they love to stay still because it helps them, and they hate moving around, it makes things worse. So it's really the opposite of that. So that's what we call inflammatory back pain, and that what we think of as the cardinal symptom of people that have axial SpA. Okay, and how common is it and who gets it? You're right, it's not common. As we said, there are a lot, a lot of other causes of back pain that are much more common. In fact, there's research saying that of all the back pain patients that go to GPs, go to see primary care, maybe only five percent, so that's only one in 20 of those back pain patients turn out to have axial SpA. So it is rare. And then we look at how common is it in the population in general, again, it's hard to get very detailed information, but it's less than 0.5 percent of the population at large will end up having axial SpA as well. Okay, and do we know what actually causes it? You know, and are there known risk factors for it, for instance? So like a lot of our conditions, there is a genetic tendency in them, so people are predisposed by their genes. But not everyone in a family, even though they would have the same genes, would get the condition. So something else must come along to trigger it. A lot of our inflammatory conditions, our autoimmune conditions, are frequently triggered by, we think, maybe a viral infection might be what triggers someone that's predisposed. And, but we never know for sure because sometimes it's so hard to date back to when the symptoms actually really start. So then it's even harder to remember, was I unwell in those few months beforehand? But basically, the bottom line is people are genetically predisposed, and then some environmental trigger is enough to tip them over at the edge and to start to develop inflammation, and that inflammation builds up in their spine, and they start to get back pain. And I mean, sometimes people, I tend to have a belief that this form of arthritis has more of a genetic component than other types. Is that fair to say, or is it just a myth? No, no, that is fair to say. I mean, compared to some of our conditions, it would definitely have a stronger genetic component. You're even able to follow it more closely to various family members. It's not a condition that's passed directly generation to generation consistently, but if you look, you're able to plot out even kind of family tree, you'd be able to see different family members that are affected with the condition. What's interesting is some of the related conditions that I mentioned at the start, like maybe psoriasis or inflammatory bowel problems, they are all genetically linked. They're not the exact same, but they're very similar. So you might be able to trace back going that it was an uncle that had inflammatory bowel problems or a...