| WHAT
IS TRAVELLERS THROMBOSIS (DVT)
This has become known in the press as "economy class syndrome"
but the term is misleading. Individuals seated in cars, buses and trains may all be at
equal risk, and cases of DVT occurring in flight have been reported in travellers in
premium cabins as well as economy. The term 'travel related DVT' is much more accurate.
WHAT IS
TRAVEL-RELATED DVT?
Long journeys by plane, train, etc, are thought to cause an increased risk of DVT.
This is probably due to sitting immobile and cramped for long periods of time. In plane
journeys, in addition to the immobility, other factors which may possibly play a part (but
are not proven) include: the reduced cabin pressure; reduced oxygen levels in the plane;
slight dehydration caused by not drinking much water, and drinking too many alcoholic
drinks which are often freely available.
DOES
RESEARCH BACK THIS UP?
Yes - It is indicated from the
studies of which we are aware, that there is indeed an association between long journeys
and the occurrence of DVT. However, thromboses can occur after car, bus, rail or air
travel and there is no conclusive evidence that flying in itself is a specific risk
factor.
It has to be stressed that the vast majority of travellers have no problems. The increased
risk of DVT from travel is small. Research studies suggest that there is about one DVT for
every 6000 journeys that last four hours or more. Also, it is difficult to rule out that
the people who have a DVT after a journey would have had one anyway and the journey was a
coincidence. (DVT is quite a common condition in the general population anyway.)
Nevertheless, it is wise to try and reduce the risk, particularly if you are in any of the
other 'at risk' groups listed above.
WHAT CAN I DO TO REDUCE THE
RISK OF TRAVEL-RELATED DVT?
Because a DVT can occur with little or no warning, it is advisable to take proper
precautions to reduce the risk.
Dont
let cramped conditions put you at risk of DVT.
Keep your blood circulation moving even when travelling by aeroplane.
Whilst travelling on a long journey, particularly on a long-haul plane trip:
· Wear loose fitting comfortable clothes when
travelling.
· Exercise your calf and foot muscles frequently
even whilst sitting in your seat.
· Use Nukkles to frequently refresh your legs.
· Elevate your feet and legs when possible.
· Drink plenty of fluids, preferably water, to avoid
dehydration.
· Avoid beverages which contain alcohol and/or
caffeine both before and during the flight.
( Alcohol can · cause both
dehydration and immobility. )
· Do not take sleeping tablets, which cause
immobility.
· Avoid smoking.
· Don't cross your legs or sit in a manner that
restricts circulation.
· Take all opportunities to get off and walk about if
your transport or aeroplane stops for refuelling etc..
· Walk up and down the cabin or aisle as frequently as
you are able.
· If possible, stand up in your seat area and stretch
your arms and legs.
· Walk for 30 minutes before starting your journey
particularly before boarding an aeroplane.
AFTER THE
JOURNEY
Have a little walk straight after the journey to 'get the circulation
going'. The vast majority of travellers have no problems. However, if you develop a
swollen painful calf or breathing difficulties shortly after a long journey, then see a
doctor urgently. (But note: slight painless puffiness of feet and ankles is common after a
long journey and is not due to a DVT.)
AM I AT RISK
IF I AM NOT TRAVELLING?
Yes - If you are inactive for long
Periods of time! or have a sedentary occupation.
HOW CAN I
REDUCE THE RISK?
If possible, avoid long periods of
immobility such as sitting in a chair for many hours without moving about. (e.g.
using a PC!). If you are able, get up and walk around now and then. A daily brisk
walk for 30-60 minutes is even better if you can do this. Regular exercise of the calf
muscles also helps. You can do some leg exercises or use a Nukkles massager even when you
are sitting.
ELASTIC
COMPRESSION STOCKINGS
There is some evidence to suggest that compression stockings may help to prevent
travel related DVT. Many doctors recommend that you wear them if you are in any of the 'at
risk' groups listed above. Some doctors advise that all adults should wear them on
long-haul flights. Stockings however, do not replace the need for regular measures to
improve circulation, but should be considered to be in addition to this.
IMPORTANT
NOTES:
A compression stocking used
following a DVT should be fitted professionally after an assessment and accurate
measurement. Do not just buy 'over the counter' support stockings that may be the wrong
class or size which may potentially cause more damage.
Aspirin
is not used to prevent DVT. (Aspirin is widely used to help prevent blood clots in
arteries which can cause strokes and heart attacks. However, aspirin does not seem to be
very effective at preventing clots in veins.)
If you
believe you may be experiencing DVT symptoms, talk to a doctor immediately.
Patients who receive early treatment may reduce their chances of developing pulmonary
embolism to less than 1%.
If you feel
that you may be at particular risk of DVT or if you have any of the additional
risk factors listed previously, you should seek medical advice before travelling.
NUKKLES
In addition to the measures mentioned above, why not improve blood circulation in your
legs using the Nukkles massager. Nukkles is considered to be one of the best devices
available.
FURTHER
ADVICE:
For further advice regarding Travel Related DVT,
click
here to visit the Department of health website
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