Top 10 Reasons Medical Students Should Use Spaced Repetition

If I had to name one thing which has made the biggest difference in helping me become a doctor, it would be spaced repetition with the flashcard software Anki.

This learning technique, built on the idea of spreading out your revision over gradually increased intervals, has allowed me to get through much more content in much less time.

Want to find out more? Read my post on this over at Becoming a Doctor, part of Sethi Health.

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Blogging Barbados: Where Was I?

This is the right turtle, but I sadly wasn’t the photographer … Courtesy: Brocken Inaglory

Minutes ago, a turtle bigger than my dog bumped into me. I looked down to catch a glimpse and saw it drift up from beneath my legs, chasing after dozens of huge fish. I am definitely not known for my swimming, so it’s with some surprise I found myself floating forty feet above the Caribbean sea this afternoon.

Minutes before that, I was staring out across the sea from a little boat, counting other bigger boats. There were at least a dozen in view. They almost looked like they were hovering, the water was so clear. Today marks my last day in the Caribbean, finishing it as I started, at a beach house. However, in an attempt to escape its soundtrack (Worst of the 90s, also feat. Abba and Justin Bieber), we had gone looking for some turtles. But more on that in a minute.

A lot has happened in four weeks. When I came, I was the picture of a Brit abroad, complete with DEET-laced shorts and a hat that wouldn’t look out of place on safari. This sadly remains unchanged. But I do feel like the Caribbean has brushed off on me in other ways.

I’ve seen so much more than I ever thought I would, inside the hospital and out. I’ve learned about a population with incomparable friendliness (I thought I was laid back. Now I know the true meaning of chilling), but have been privileged to also learn about their many and varied health problems.

With widespread hypertension, some of the most poorly controlled diabetes worldwide, and a seven fold increase in some blinding eye diseases, Barbados doctors have more than their fair share to deal with. It makes me really appreciate how far along the UK is in its healthcare, particularly with regards to nipping disease in the bud before it grows out of control – including our close diabetes monitoring and retinal screening service.

It’s shown me that it’s always important to look at things from another perspective. Like, say, going snorkeling for the first time instead of lounging on the beach. Which takes us back to me bobbing along next to my little boat.

Staring down at the sea floor was incredible. Schools of fish, each one as big as my foot, darted around anywhere I cared to look. I’ve never seen anything so vibrant, almost loud to look at. The turtles circled around me, coming in to see this clumsy, goggled invader. I could not get over how huge they were. Far too big to glide around so effortlessly. We brushed past each other a few times, and their shells felt like smooth rock. Floating there, over hundreds and hundreds of square feet of ocean floor, was a feeling I’ll never forget.

There’s a phrase that goes: ‘a comfort zone is a beautiful place, but nothing ever grows there’. I try to take this to heart. Whether it’s changing up your career plan and training as a doctor, muddling through your first long haul flight alone to work at a hospital abroad, or even colliding with a giant turtle, I think you can only learn by doing something new.

With any luck, I’ve still got a lot to learn.

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Blogging Barbados: Complications

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Another interesting find from getting lost at the hospital. Think this is some kind of recreational space for staff.

‘You see the white debris covering the pupil? The operation did not go as planned.’

As with anything in life, sometimes medicine can go wrong. All treatments come with their own risks and benefits, and it’s the job of a doctor to weigh out the scales and decide if a certain drug or operation will benefit the patient, or harm them. For the patient above, their outcome was not so favourable.

She had originally had a cataract (a clouded lens – found behind the pupil), and so had been scheduled for an operation to remove it and replace it with a new, synthetic lens. For a cataract as mature and opaque as hers, this would have meant a significant improvement in her vision.

In the eye, the lens sits within the lens capsule. In removing it from this capsule, sometimes the back of it (which faces the vitreous jelly in the centre of the eye) may become ruptured – a posterior capsule rupture. This is a well-recognised complication of cataract surgery and unfortunately occurred during this lady’s operation. A chief concern is that the lens may drift backwards into the vitreous, and so the surgeon had pulled the lens fragments forwards into the anterior chamber: the space in front of the pupil.

This explained the curious appearance of the patient’s eye: there were shards of milky white covering all the pupil and iris, almost like a paperweight pattern. This was what remained of her original lens, displaced and broken apart. Whilst this meant the lens stayed at the front of the eye, the patient’s vision would be negligible until a further operation to try to remedy the damage. They were also now at increased risk of glaucoma, infection and and retinal detachment, making close post-operative follow-up essential.

Throughout medical school, I’ve always tried to seize the times where I’ve been wrong as learning opportunities. In a way, I think I came to see getting something wrong as a ‘good’ thing, as it easily highlighted an area to improve. This is all well and good when talking about exam grades or write-ups, but I think it will be much harder to gather myself after my first real clinical complications.

There is a lot more at stake than just my learning – the situations where I make the wrong decision for patients will be the biggest challenges I’ll ever come across. Luckily I’ll always be part of a team to support me, and I hope that through them, these errors will be as rare as what happened to this patient.

Blogging Barbados: Going Through the Motions

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Bridgetown, the capital of Barbados.

Yesterday saw a welcome break from the norm – I made an actual, correct diagnosis. The patient, a gentleman in his late 40s with a curious blurring of vision in his right eye, kindly gave me excellent practice. He had a fixed stare, had already had his pupils dilated with special drops, and last but not least, his eyes were huge.

Years ago, in the daydream land of lectures, examining the eye sounded pretty straightforward. Basically you hold up a little instrument called an ophthalmoscope (or fundoscope – basically a magnifying glass with a torch) to the patient’s eye and try to peer at the retina. There’s little extras, like adjusting the lens, darkening the room, and awkwardly squatting down to the patient, but that’s the gist.

Nonetheless, despite having actually lost count of the number of times I’ve done this, it all too often feels like I’m just so focused on following the procedure that I’m not actually looking at what’s in front of me. It was tempting in most clinical exams to learn them like plays, making the right noises and tapping the right parts, but being more interested in your examiner’s pen-strokes than actually seeing what the patient’s body is showing you.

With this patient however, I was determined to try and actually work out what was going on. From the brief bits of history I’d managed to take, I knew his loss of vision was sudden, and that sometime beforehand, he had been struck in the eye. Trauma is an important thing to ask about, as the eye is made up of a lot of delicate parts that don’t respond well to things flying at them.

I had a suspicion of what was wrong, but it was important to try and see for sure. For a while it was the usual blurry mess. Eventually the vessels came into view, and then the optic disc (where the optic nerve enters the eye). It all looked fairly normal compared to a lot of eyes I’d seen – there were no haemorrhages (blood spills) or exudates (leaked fat) that you might expect from diabetes or hypertension.

Then, I saw a strange speckling that I presumed at first was a problem with my kit. It persisted, and I remembered hearing about a sign called ‘tobacco dust’: basically, these are small pigmented dots visible after a part of the vitreous (inner jelly) of the eye detaches from the retina – a posterior vitreous detachment. It commonly causes a full-blown retinal detachment with it, too.

With my face still practically touching the patient’s, I craned back to look at the retina again. Sure enough, just to the side of the optic disc, there was a little lightened segment that looked a little bigger than the rest, somehow. This was the piece of retina that had been pulled when the jelly had shifted, causing the man’s loss of vision.

The man was scheduled for an operation to repair the retina, solving a condition that would otherwise have meant permanent loss of vision. I think the biggest lesson I’m taking from the Caribbean is this skill: being able to finally recognise things instead of just politely acting examinations out. This is probably just as well with a year on the clock until graduation, though!

Blogging Barbados: Disease Overseas

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‘You see how the growth has grown across the eye? You’ll never see this in England.’

I’m in theatre again, scrubbed up and staring down towards our patient. Today, we are dealing with a pterygium, a benign growth of the conjunctiva. This is where the white of the eye grows inwards to the pupil, potentially covering the cornea and interrupting vision. This was the case for our patient today, and so he had been admitted to have it cut out.

The condition is also called ‘surfer’s eye’, owing to the fact that it is associated with prolonged exposure to ultraviolet light, sand and low humidity. Given you’d be hard pushed to even find the first two in the UK, it’s less of a mystery why it mainly presents in areas like the Caribbean.

‘Is it still stinging?’

The surgeon dabs gently at the eye with a cotton wool bud. As with any surgery, it’s crucially important to make sure the patient can’t feel anything before you start. With the all clear given, he proceeds to finely cut and scrape against the small, red growth. Slowly but surely, the cornea is unearthed.

The increased prevalence of pterygia is one of many variations I’ve picked up in eye disease between different populations during my stay. White patients are more susceptible to macular degeneration, for example, whilst black patients are more likely to develop open angle glaucoma. This diversity means that doctors must pay close attention to their patient’s background: whether ethnic, social or geographical. They can provide useful clues when you come to decide what disease the patient is most likely to have.

The fleshy pterygium is now completely cut out (excised), but this means that there is no longer any conjunctiva covering the area either. The underlying sclera cannot be left exposed, and so the surgeon takes a cut from the inside of the eyelid as a replacement. The graft is fixed into place with extraordinarily small sutures to complete the job.

It’s exciting seeing all these new and unusual conditions, but it’s also an important reminder that medicine is not the same the world over. Though I probably won’t be asking after surfing as well as cigarettes in my histories, I do feel better for knowing.

Blogging Barbados: On Caves, Beaches and Jerk Chicken

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The ‘Cave Interpretation Centre’.

I feel like I’ve come a long way in two weeks. Stepping off the plane I had positively no clue where I was 90% of the time. Now, it’s more like 70%. In spite of my persistently awful sense of direction, I’ve squeezed a lot out of this weekend, including, but not limited to: a cave, a festival, a beach, and another jerk chicken burger. Let’s start with the cave.

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The start of our windy subterranean crawl.

Harrison’s Cave is hailed by many as the number one tourist attraction of Barbados. Formed from thousands of years of slow erosion of the limestone base of the island, these lengthy caverns actually require a full-blown tram to get around on. Certain bits are wired up with lighting to let you wander around on foot, too.

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It was a beautiful and eerie sight. The caves were calm and almost serene – nothing could be heard save for the constant drips from the ceiling. I couldn’t help but wonder however what it would have been like to be crawling through here on my hands and knees, as the first explorers had. They had trailed the underground streams by torchlight in what must have been an incredibly exciting (and incredibly claustrophobic) venture.

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The stalagmite formations, formed by centuries of dripping water, are often personified by the Barbadians.
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Some kind of creature that supposedly jumps on unwitting tourists who take too many pictures. Or maybe some sort of stalactite. All I know is I’m the perfect bait!
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The gigantic height of the cavern’s ceilings made me feel like I was in a kind of subterranean cathedral.

Humbling as all this ancient rock was, our stomachs sent us back to Bridgetown. The roads had been closed off (thank god!), making it much easier to get around. That is, before bumping into a full-blown festival. This could hardly go ignored, and so we spent some time taking in the many and varied sights.

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The First Citizens festival of Bridgetown (NB: that’s my best bet of what is going on, anyway).

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The next day, we headed out to Worthing Beach, along the south coast. I felt a little tense en route with the threat of another shower (read: monsoon). Instead, the Caribbean delivered yet another impossibly picture-perfect afternoon soaking up the sun. I had thought my tan was coming along rather well, but on looking to my well-bronzed friends, I must admit I may well still be the whitest person on the island. At least I’ve got plenty of jerk chicken to numb the pain. Here’s to the next two weeks!

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