Category Archives: Capsule Endoscopy

Call My Bluff

It started with a routine calprotectin test in November 2015. The result came back at just over 100, which equates to “mildly elevated”. Subsequent tests continued the upward trend. A graph (I do love a good graph) is the best way to show the issue.
Calprotectin Test Values

To try and explain this ever rising trend I underwent a number of MRIs and colonoscopies but nothing untoward was seen and my gastros were stumped. Life continued as usual and my remission appeared to be continuing despite the confusing calpro figures. Could there have been something causing a false positive reading? I set about trying to find a plausible answer (that didn’t involve inflammation) but without success. In the meantime I was wondering why my Hb level was on the low side. Cue another graph…

Hb Values

It wasn’t until late 2018 that I went to see my gastro again, ostensibly to discuss the Hb level and a recent bout of “bathroom dashes”. Was it time to re-investigate the calprotectin issue. There was one section of my gut that hadn’t been seen by camera, namely the small bowel between duodenum and the anastomosis site (where my terminal ileum had been). I was booked in for a capsule endoscopy on 18th November. The full description of the procedure and the wait for the results can be found here (opens in a new window) – http://www.wrestlingtheoctopus.com/fantastic-voyage/ .

When the report was finally available my consultant emailed me to say that “there is some inflammation in the small bowel – it’s not terrible but it must be the source of the calprotectin. I  think it is probably enough to warrant treatment which we should discuss. Shall I arrange an appointment?” Yes, that would be a good idea. The date has come through for mid-April. A few more weeks wait before finding out the way ahead….

Then, last Thursday, I was rather surprised to get a phonecall from one of the IBD nurses. She told me that it had been decided, at the weekly virtual clinic (which I think must be like an MDT), to start me on Vedolizumab and they needed to book me in for a blood test and chest x-ray prior to my first infusion. I explained that this would be a major decision, as I had been Crohn’s drugs free for several years. My preferred option was to stay that way. I would want to discuss any new drug/treatment, at the forthcoming gastro appointment, prior to starting. (I have subsequently had an email from my consultant agreeing with this course of action. It appears that the IBD nurses had been very efficient in trying to arrange approval for the drug prior to the appointment)

Bluff

I’m now in a position that many other patients are confronted with – the end of remission. I’ve written many times about maintaining a laid back, positive attitude. Now my bluff is being called and I need to prove to myself that I can continue being calm and unstressed about my health.  So far so good. If my quality of life was being seriously compromised and I was unable to function properly then the decision to restart medication would be a simple one…..but it isn’t apart from…..

….an ache in my right hand side (URQ). It’s more annoying than being anywhere near painkiller territory. What could be causing it? As with most things #IBD related there is always a high degree of uncertainty. I consider this to be one of the major psychological burdens we bear.

I’m currently testing an IBD Self Help programme. It is broken down into modules which are completed over a number of weeks. I haven’t reached the “Pain” section yet so I’ve been relying on the old technique of visulaising the pain in an attempt to lessen its impact. That’s easier to do if you know there is only one cause but in my case it could be : the recurrence of the old ache around my anastomosis due to adhesions/scar tissue; gallstones; getting the balance of Loperamide/Colesevelam wrong; or the new kid on the block – inflammation. (“New” may be an incorrect description given that the first high calprotectin values showed up in May 2016).

Jump

You might think that I would jump at the chance of starting treatment but I’m not so sure. If inflammation did restart in 2016 then I have thrived so far without medication, do I really need to start now? I don’t want to be dogmatic and take a “I’ve been taking no drugs so I’m not going to start now” stance without good reason. A fellow Crohn’s patient asked what made me hesitant? I suppose the answer is “side effects”. I have not needed to educate myself on the progress of the MABs/biosimilars and their potential downsides. I have a lot of catching up to do and need to understand how the benefits would outweigh the risks.

I have however had experience of drugs damaging other systems or not working. I took Azathioprine for 9 years, with no apparent side effects, then my platelet count suddenly plunged. The concensus was that the Aza had attacked and permanently damaged my bone marrow which in turn reduced its ability to produce platelets. No more Azathioprine. I then tried Infliximab but after 3 doses my symptoms showed no improvement and I went under the surgeon’s knife (2010).

Platelet Count

Before the mid-April appointment I need to research Vedolizumab; ask other Crohn’s patients for their experiences and come up with a list of questions for my gastro. I’ve made a start……

Questions, questions….

I would usually leave my list until a couple of days beforehand. Given that this will be a major decision point in my Crohn’s experience I thought it best to start writing now.

  • What exactly did the capsule endoscopy show in the way of severity of inflammation and locations? Was it confined to the small bowel?
  • What was the gist of the discussion that resulted in proposing Vedo?
  • My QOL is good apart from an ache on my right side
  • Looking at the calprotectin levels it suggests that inflammation started somewhere between November 2015 to June 2016 but was not apparent on other tests
  • It has been 6 months between having the capsule endoscopy mid-November and the appointment. That suggests it does not need immediate treatment.
  • What if I decide not to go back onto Crohn’s medication at present?
  • How will Vedo help me now? …and in the long term?
  • Are there any side effects I need to know about? Are any of these relevant to my other conditions?
  • Ongoing monitoring regime? Frequency?
  • How good a measure would calprotectin be for small bowel Crohn’s?
  • Does the efficacy of Vedo differ as one gets older? Do the side effects change?
  • Is there the opportunity to have infusions at a local hospital?
  • Was there anything else of note from the capsule endoscopy? Could anything account for my low Hb?
  • What can we do about Hb level and long term use of Ferrous Fumarate? Would an iron infusion be the answer?

(If I have missed something obvious or you have beem in a similar situation then please leave a comment or respond on Twitter @crohnoid – Thanks)

Fantastic Voyage

Fantastic Voyage – 1966 Sci-Fi Film

A New One On Me

Over the years I have undergone many different tests but the one that had eluded me to date was the Capsule Endoscopy. Maybe that’s the wrong to put it. Might be better to say that “so far I hadn’t needed one”.

So what changed? The last time I saw my gastro we discussed the apparent conflict between my feeling fit and well (good QOL), clear colonoscopies & biopsies but test results suggesting the opposite – calprotectin = 1300 ; Hb = 11.0 ; gradual weightloss >15kg. We had discussed this before. He had even asked a colleague to carry out a second colonoscopy in case he had missed something. Both of them were stumped so we agreed to park it. I thought now was the time to ask for it to be investigated further. The only part of my digestive tract that hadn’t been seen through a lens was the small bowel between duodenum and the point where my large and small intestines had been rejoined. He agreed.

We had previously discussed using a self-propelling endoscope but a “pill cam” sounded a less daunting solution. The concern about using a capsule was the risk of it becoming stuck at a narrowing. A radiologist would be asked to review my last MRI scan for strictures before the endoscopy was ordered. The cost of the capsule endoscopy procedure to the NHS is approx. £500.

All must have been well as I got a call from Endoscopy Appointments to agree a suitable date  for the procedure. A couple of days later the instructions arrived in the post. Very similar to having a colonoscopy but with none of the dreaded prep solution needed. The leaflet also listed the medications that would have to be put on hold. These included stopping iron tablets and Loperamide 7 days out. Iron tablets – no problem, but Loperamide – that would be the one instruction I wouldn’t be following. The thought of taking a trip to London having not taken Loperamide for 7 days was not even worth considering and would have put in jeopardy attending the Big Bowel Event at the Barbican on 16th November.

Monday 19th November 2018 – GSTT Endoscopy Department

After the glorious weather over the weekend it was a disappointment to arrive in London on a dull, rainy day.  The walk to the hospital took me past a number of foodstalls that simply reminded me that I hadn’t eaten since 8:30 the previous morning or drunk anything since 22:00.

Food Stall
One of the food stalls that have sprung up along the South Bank

I arrived at St.Thomas’ Hospital and, after a few minutes’ wait, was collected by the specialist nurse. She asked the usual questions :

“When did you last eat?” “8:30 yesterday”

“When did you stop taking iron tablets?” “7 days ago. Why is it so far in advance?” “They blacken the walls of the intestine and can give patients constipation”

I explained that I hadn’t stopped taking Loperamide as, for someone who relies on it every day, any thought of stopping for 7 days was a definite non-starter.

“What other medications are you on”  I went through the list

She outlined the procedure and I was able to ask the questions. The main one was “can the capsule be used to judge the condition of esophageal varices? If it can then should I cancel my conventional Upper GI endoscopy booked for the week before Christmas?”.  She explained that a capsule can be used to look at varices but it would need to be a different type from the one I would be swallowing today.

She then ran through the risks of the procedure. The main one being the capsule becoming stuck and the possible means required to extract it, the worst scenario being surgery. I signed the consent form.

There are several different makes of capsule system available which all work on similar principles. There are also different types of capsule for specific tasks. There is even one with a camera at both ends.

The more advanced ones have higher resolutions & frame rates and some communicate with the recorder unit wirelessly, without the need for sensors. St.Thomas’ employ the MiroCam system which  uses an array of sensors to pick up the signal from the capsule and send it to the recorder. (It’s the same unit that the BBC used for the live endoscopy that they broadcast as part of their “Guts: The Strange and Mysterious World of the Human Stomach” in 2012.)

MiroCam receiver and sensor array

The first task was to attach the numbered sensors in the correct positions around the abdomen. I can see why wireless communication is the future. (I wouldn’t normally post a selfie of my abdomen, in the interests of good taste, but to illustrate…..)

It’s not until you see a photo of your abdomen you realise the marks that have been left by surgery, laparoscopic not keyhole

Once they were in position the nurse produced the capsule and asked me to hold it between my fingers then pass it in front of the recorder unit. A bleep showed that they were now paired. As she had already input my information into the unit the display showed my name, hospital number etc.

The capsule – measuring 25mm long x 11mm dia.

It was time to see how easy swallowing a capsule would be. The answer – very easy. At 11:40 I took one gulp of water and it was on its way. The nurse switched on the live monitoring function and we watched it enter my stomach. To save battery power she then switched it off and I didn’t have the courage to try it myself in case I ruined the whole procedure. (…and what if I had seen something that, to my eyes, looked wrong? A surefire way of inducing stress)

As the unit has a 12 hour battery life she said the unit would switch off at 23:40 and I could then remove the sensors. The recorder unit would then need to be returned to St.Thomas’. I explained I was not available the following day so we agreed that I would take it back on Wednesday. Two weeks later the results should be available. When would I be able to eat and drink again? Coffee two hours after swallowing the camera and then a light meal after another two hours.

If it had been decent weather I would have set off on a long walk around London, as light exercise helps the transit of the capsule, but I decided I would rather get home in the warm. I took a short walk to College Green (the area outside the front of the Houses of Parliament) to see if there was a media scrum due to some new development with Brexit but there wasn’t so jumped on the Tube to Blackfriars and took the train home.

From Platform 1 at Blackfriars there’s a good view of the City and the new buildings going up

True to the nurse’s word the unit switched itself off at precisely 12 hours from the start of the procedure and I was able to peel off the sensors with remarkably little pain. The camera is not retrieved after the procedure (although there are some types that do rely on the patient “collecting” it and returning it  to the hospital for analysis).

Wearing the receiver unit took me back to having a stoma as it was hanging in the same position as the bag and the adhesive on the sensors gave a similar sensation to that of the stoma backplate.

Partial Update

The analysis of the video was due to take 2 weeks from handing the recorder unit back but nothing was forthcoming. I contacted my gastro consultant who said he would chase it up but after 4 weeks still nothing. I knew I would be visiting the Endoscopy Dept. again on 18th December, for my annual Upper GI scope (looking for esophageal varices related to portal vein thrombosis)  so I would ask then.

The endoscopy was being carried out by the head of the Gastro Dept. so I asked him whether he could find my video results on the system. He went off to check the status. By the time he returned I had been prepared for the scope – xylocaine spray (burnt bananas) to back of throat; mouthguard in position; Fentanyl injected. I was unable to speak. Luckily they had held off with the Midazolam so I was, at least, still conscious!

He told me that the video was being checked now but he had seen the first half of it and appeared to show Crohn’s in my small intestine. A nice Christmas present! I would have to await the full analysis before discussing the way forward. I emailed my gastro consultant to tell him the news. He replied that he would keep an eye out for the report.

…and with that the Midazolam was injected….zzzzz

When Will It Be Resolved?

The report took a long time to finally emerge and in another email my gastro said that it did indeed show that Crohn’s had re-surfaced in my small bowel in the form of mild to moderate inflammation. This was a disappointment as I had been in remission since 2011. An appointment has been arranged for 15th April to discuss the treatment options. If feasible I would favour the “do nothing” option. My thoughts on the end of remission and the questions I have for my gastro are in a separate post (opens in a new window) – http://www.wrestlingtheoctopus.com/call-my-bluff/

The Report Finally Arrives

In mid-March a printed copy of the endoscopy report, in glorious living colour, arrived in the post. Whilst I found it fascinating I struggled to understand exactly what the images were showing.

I was intrigued by the transit times : 15 minutes to make it through the stomach; 2 hours 52 minutes travelling through the small bowel; and 8 hours 51 minutes in the colon. These were classed as being “within average range”.

Luckily there was a summary report; unluckily there it was in black and white “…with a background of Crohn’s these are in keeping with mild to moderate active disease“.

Capsule Endoscopy Report – from esophagus to ileo-caecal valve