Showing posts with label cardiac arrest. Show all posts
Showing posts with label cardiac arrest. Show all posts

Saturday, 28 May 2016

Magnesium reduces sudden cardiac death by 36%

Everybody with heart disease should be taking magnesium supplements.

It has been long suspected that low magnesium increases the incidence of sudden cardiac death, but most of the studies have been relatively small (few cases of sudden cardiac death).
In the nurses health study those with the lowest level of magnesium in their blood had a higher incidence of heart disease, the NHT FS follow-up study also suggested the same, but each only had a few sudden cardiac deaths.

A recent study of almost 10,000 normal people followed for 9 years in the Netherlands click here, showed that those with low serum magnesium level had a 36% increase in sudden cardiac death, and unexpectedly also a higher incidence of non-sudden cardiac death as well.

We often treat patients in hospital following a cardiac arrest or with severe rhythm problems with intravenous magnesium, suggesting the importance of this mineral in keeping the heart function regular.

Therefore everybody with heart disease (angina, heart attack, angioplasty, bypass surgery, palpitations and arrhythmias, hypertension, heart failure) should be taking supplemental magnesium at least 500 to 800 mg per day on a regular basis to reduce the risk of sudden death.

Because for many people, sudden death is the 1st indication of heart disease, it seems logical that all of us should be taking supplemental magnesium at least after the age of 50.

In addition to reducing the incidence of death by over 30%, magnesium also maintains a lower blood pressure, has a calming effect, relieves muscles aches spasms and cramps, and can be beneficial to prevent migraine.


Tuesday, 21 April 2015

What to do when you have a heart attack

What to do when you have a heart attack


What happens:
One in three of us will die of heart disease, and although becoming slightly less common, a heart attack remains the major cause of death.With a heart attack a fat laden plaque in a coronary artery ruptures, causing a clot which blocks the artery. This can lead to a number of consequences:
1. Chest pain – a tight heavy feeling in the chest, throat, left or right arm,

2. Breathlessness, sweating, faintness and a feeling of being generally unwell frequently happen.
3. The heart can sometimes beat irregularly, causing palpitations, sometimes it can stop or beat in an uncoordinated fashion (ventricular fibrillation), leading to sudden death.

Speed is of the essence - both to reduce the amount of heart damage long term, and also reduce the risk of sudden death.   In the cardiology literature - "minutes mean muscle', ie the longer the delay, the more heart damage occurs. 
If we can dissolve the clot in the artery rapidly (less than 30 minutes) no damage is done at all. However there is benefit up to 6 hours, some believed 12 hours. However at any stage a cardiac arrest can occur, which is why the patient needs to be in a cardiac unit or close to a defibrillator as fast as possible.

While doctors can do –
1. Dissolve the clot with drugs given intravenously (thrombolysis). 
2. Remove the clot and open up the arteries in the cardiac catheter lab – angioplasty and stenting.
3. If the heart goes into fibrillation, this can easily be reversed with a defibrillator. These are routinely present in ambulances, places where people congregate (sports stadium, airports, shopping malls) and of course cardiac units.

What you can do –
1. Get to a cardiac unit (or ambulance) as soon as possible.
Call the ambulance using the emergency number (111, 999, 911) and say you have chest pain.
2. Sit down quietly and relax, if you feel faint lie down flat.
3. Chew one aspirin tablet (300 mg) slosh it round the mouth and then swallow it. This prevents the clot in the artery getting bigger.
4. If you have one, use your Nitrolingual spray one or two puffs every five minutes.
5. If you have some available, take some chewable magnesium or liquid magnesium (500 – 1000 mg), and 1000 mg of omega-3 fish oil. Both of these can  reduce the risk of cardiac arrest.


8 year survival curves, shortest delay (top) to slowest (bottom)
A recent study from the Netherlands has shown that in 3000 patients with a heart attack, the 30 day mortality was 2.6% in those with the shortest delay in reaching hospital catheter lab (mean 72 minutes), compared to 7.4% in those with the longer delay (160 minutes).   Five year mortality was also reduced from 22.6% in those with the longer delay to 12.8% in the shortest delay. 

So - getting to hospital as fast as possible saves lives in both the short and longer term.  DO NOT DELAY, don't worry about a false alarm or being a nuisance, any chest pain lasting more than 10 minutes, call an ambulance!