Jungle Medicine course – Costa Rica

Course director Dr Sean Hudson writing about the Jungle Medicine Training Course in Costa Rica

Back in Costa Rica again and the jungle didn’t fail to provide the perfect environment for the Jungle Medicine training course. As one would expect, it was hot, wet and full of interesting fauna and flora. I never fail to be impressed by the beauty of the jungle, but by god it can be hard sometimes. Its one of the few places I visit that can be so harsh then so comfortable. The moment you start to feel comfortable in the jungle is that Nirvana moment.

It took a while coming this trip because of the heavy rain but we eventually made it. Mike, Ceri, Mark and Martin again excelled themselves and the addition of our new herpetologist bringing snakes into camp was great. The best new addition to the course this year was however the HENNESSEY HAMMOCK, it is without a doubt the best bit of expedition equipment I have come across. 18 people in the jungle in some of wettest conditions I have experienced and everyone was dry, or if they weren’t they didn’t let on. Quite incredible.

Other than the medic feeling a little queasy on the river, everyone escaped injury and illness. Other than the EL developing drucunculiasis that is! but he’s got to have something to winge about. Back next year and I’m looking forward to it already.

Find out more about Expedition and Wilderness Medicine and about the Jungle Medicine Training Course in particular

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Expedition and Wilderness Medicine support for Commonwealth Championship for Mountain Running and Ultra Distance.

Expedition and Wilderness Medicine

Expedition and Wilderness Medicine

Expedition & Wilderness Medicine  are to provide the medical cover for the Commonwealth Championship for Mountain Running and Ultra Distance. The events will run over four days in September 2009, and Keswick has been chosen as the venue.

Expedition & Wilderness Medicine Director, Dr Sean Hudson is acting as the Medical Director for the event and overseeing the medical care for the many international and local competitors who will be involved in a number high profile races. In conjunction with Across the Divide they will be managing the medical logistics and communication for the event.

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Diabetes on Expedition

Expedition & Wilderness Medicine 

As the medical management of diabetes improves, diabetics are increasingly becoming involved in adventurous persuits in the wilderness and on expeditions. The aim of this article is to attempt to demistify the subject of insulin dependent diabetes. Diabetics on expeditions may increase their risk of a number of medical problems: hypo and hyperglycaemia, dehydration, frostbite, infections, poor wound healing. There can also be diagnostic dilemmas of differentiating diabetes related disease with a number of tropical diseases and altitude related conditions. None of these are insurmountable but require more vigilance and proactive monitoring by the individual and the expedition medic.

A letter from the client’s own GP outlining the condition, including the need to carry syringes, is necessary for air-travel and useful for border crossings. Young active diabetics may be well in tune with their disease and used to altering doses, but do not assume this. Often they are managed with background 24 hour insulin e.g. glargine with easily alterable short-acting e.g. lispro. (basal-bolus regime). Of course an insulin pump would be even better. For some people it may be useful to convert to this regime before the trip; if so, allow plenty of time to get used to it. Typically a basal-bolus regime is the recommended for the potentially unstable and unpredictable environment on an expedition.

Diabetics need to be thorough in their preparation prior to an expedition. Testing their devices, trialing new regimes with increased levels of activity. Basically ensuring maximal stability of their disease before going on an expedition. Physicians should ensure the diabetic patient has pre-expedition HbA1c, tests to establish any end organ damage and a thorough understanding of how to manage their diabetes on expedition.

Careful planned adjustment of doses is needed over time zones for any flights. Most diabetics find it useful to change to the destination time zone on the flight. As a rule of thumb, if flying west, the day will lengthen and insulin doses may need to increase, whilst eastern journeys result in shorter days and hence less insulin may be required. Importantly the diabetic patient needs to monitor their blood glucose closely.

Once on expedition, diabetics ideally need regular meals, but this may not be possible. Regular monitoring is vital and they should always carry snacks. The medic should consider an antiemetic early if vomiting occurs. Be aware that there may be alterations in insulin requirements:

UP – illness / exertion

DOWN – after regular prolonged exercise

Some monitoring devices do not function well at altitude or in the cold. Those which use reagent strips with glucose dehydrogenase are more stable, but still do not read accurately above 2500m (though the error is probably not significant). The monitors and insulin must be kept at a relatively stable temperature and not agitated too much. Insulin is surprisingly resistant to denaturing but always check that it is clear and colourless before use. There are a number of storage devices, the easiest to use and most efficient is currently the Frio Bag.

Interestingly there have been several cases of ketoacidosis in IDDM patients at altitude using acetazolamide, and until a clear connection is established its use in diabetics is not recommended. The alternative treatment is dexamethasone, however this should not be used as a prophylactic treatment as it can induce hyperglycaemia. 

Source: Dr Sean Hudson, Expedition Medicine, http://www.expeditionmedicine.co.uk/resource.php?id=105

Expedition & Wilderness Medicine

Relevant website; http://www.mountain-mad.org/

New Expedition Medicine training course dates

New September dates for UK Expedition Medicine Course in the Lakes

We are happy to announce the dates for our autumn Expedition Medicine course in the Lake District for the 9-12 September 2008 to be held at our training centre at the Barrow House Youth Hostel, Borrowdale, Keswick, Cumbria.

Find out more about the course at the UK expedition medicine training page here

Visit our Expedition Medicine photo gallery here to see more or download an course application form here, but hurry the places are strictly limited.