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What is an arrhythmia? Well that’s a very broad question. The definition is an abnormality of the heart rate what you can feel as your pulse. This can come in the form of beating to fast (tachycardia), too slow (bradycardia) or just irregularly.
Normally your heart is able to pump blood around your circulatory system in an efficient way without working any harder than is needed. For this to happen the electrical conduction system of the heart has to be in working order. The electrical system makes sure the heart contracts to pump the blood in an orderly way.
This electrical system has an order:
1) The electrical signal originates from the sinoatrial node (SA node) the hearts natural pacemaker.
2) The signal leaves the SA node and travels through the two upper chambers known as the atria. Pushing the remaining blood from these chambers into the two lower chambers known as the ventricles.
3) The signal travels through the specialized conduction system of the atrio-ventricular node (AV node) and passes through the lower chambers.
Arrhythmias arise when there are problems in the electrical conduction system. Other areas may send out signals or electrical signals may not be able to move easily or at all.
We will discuss different types of arrhythmia’s in later posts. – CT
Here at Heart-Blog.com we believe the best ways to keep your heart healthy can also be some of the easiest. So here is a simple recipe for a lovely easy to cook meal:
Grilled trout with a lemon and chive sauce, served with wholemeal rice and green beans.
A few chopped chives
A few tablespoons of olive oil
2 trout portions (or chicken breasts if you don’t like trout)
This recipe is great to keep your heart healthy. The wholemeal rice is a source of fibre, which can help your digestive system. The green beans provide a source of iron and the sauce for the trout has no added salt. The trout is an oily fish so is heart healthy, but if you can’t stomach trout, this recipe works well with chicken.
We have decided to try and help in any way we can with educating about heart disease. We now want to make a more physical donation to helping those who suffer heart disease by planning a 1080 mile sponsored cycle ride from Lands End to John O’ Groats also known as LEJOG.
This is a relatively well-known cycle route in the United Kingdom where you cycle from one end of the country to the other. The usual trip would start at Lands end in Cornwall at the South Western tip of England and goes all the way up to the North Eastern extreme of Scotland ending at John O’ Groats.
We are hoping to raise at least £1000 for this endeavor, which is about a single pound for every mile travelled on the road. We will be raising money for a wonderful charity whilst ensuring our own heart fitness!
We are planning to keep everyone up-dated on our training progress and estimated time of departure via Heart-Blog.com. Donations can be made at our secure justgiving.com page: http://www.justgiving.com/ChrisandBecca. We would be happy to take sponsorship for short-term advertising on the Heart-Blog.com website as negotiable.
Certain fish (zebrafish) and amphibians have been known to have the capacity for cardiac regeneration throughout life. However, it is not the same case for the adult mammalian heart.
Recently the BHF have been talking a lot about the regenerative capacity of zebrafish and have made a huge new initiative to study how the zebrafish achieves its heart regenerative capacity.
However, a new study in the journal Science from the University of Texas South-western Medical Center has brought the issue a little closer to home. They have shown that young mice not older than 7 days old are able to regenerate sections of their hearts after damage.
This regenerative process was proven to be different from the usual repair process of the heart after it has become damaged i.e. that the heart could repair itself fully and not have impaired function.
Thus, it seems that for a brief period after birth, mammalian heart has the capacity to regenerate.
This is a wonderful finding and hopefully future research may be able to determine how the young heart keeps its regenerative ability after birth. Ideally future research would extend into understanding how we may be able to therapeutically manipulate damaged hearts, allowing them to regenerate after cardiac injury.
This research could open a completely new avenue for patients who have suffered heart attacks (also known as myocardial infarctions) and other damage to the heart to recover better after these cardiac events.
To read more about Zebrafish at the BHF
To read more about the young mouse heart SCIENCE
Heart disease is one of the leading causes of death worldwide. It doesn’t have to be and here are some helpful ways to help keep your heart healthy:
1. Stop smoking! By far one of the best things anyone can do to live longer. If you are a smoker you are twice as likely to have a heart attack than a non-smoker. Time is of the essence as it takes years for your heart and lungs to recover after extended periods of smoking. So it can never be too soon to stop! With the new public smoking bans and the ever increasing cigarette and tobacco prices when would there be a better time to quit?
2. Watch your diet. A healthy diet can go a long way to ensuring the health of your heart. Not only this but you are much more likely to survive a heart attack if you have been eating healthily. Try to avoid processed foods and those with large amounts of saturated fats and salts. Keep to fresh fruit and vegetables with your balanced diet. Try and substitute red meats for fish and last but not least try and reduce foods like biscuits, pastries, cakes and dairy products with high saturated fat and sugar levels.
3. Exercise moderately. The heart pumps blood around the body and needs exercise to keep itself fit. A moderate 30 minutes of exercise a day is great for your heart. However, this can be daunting if you are just starting out, build up gradually and enjoy the rewards of keeping your heart fitter. If this isn’t encouragement enough, exercise has been shown to improve mental wellbeing too. So not only will your heart be happy but you will too!
4. Watch your alcohol intake. Alcohol can damage heart tissue if you drink too much. It is suggested not to drink more than 1-2 units per day. Not only this but heavy drinking can lead to weight gain, whilst binge drinking will significantly raise the chance of having a heart attack.
5. Recognise the symptoms of coronary heart disease (CHD). This can present as tightness or discomfort in the chest, neck, arm or stomach, which may come with exercise and go when you are at rest. These can be the first signs of angina, which may lead to a heart attack if left untreated.
An unusual way of aiding care for CHF patients has been devised by a group from Johns Hopkins University. The care involves patients using a Wii gaming console with a Home Automated Telemanagement (HAT) system.
The system questions patients to monitor symptoms, weight changes and quality of life whilst educating about their condition. All the system needs is the Nintendo Wii console with an active Internet connection.
The system has been designed to be as user friendly as possible allowing patients with very basic knowledge of computer gaming consoles to use the HAT system.
After the system has asked questions about the patient’s condition it issues an action plan zone to the patient advising them of what to do to maintain this zone. This comes in the form of advice on living healthily and reminding patients to take their medications correctly.
The hope with this technology is to aid physicians to get feedback from reluctant patients on their current condition and to get more frequent day-to-day feedback. It is emphasized that physician visits would still be important for patient care.
The system is primarily designed to allow the patient to monitor their health frequently whilst educating them about their condition with the intention of increasing condition awareness and quality of life.
The system has not as yet undergone clinical trials to establish how effective it is. However, can a system that allows patients to learn and give feedback to health care professionals more often be a bad device? The main question that springs to mind is the cost barrier of giving/getting these systems to patients and whether or not they would use the system regularly enough to fulfill its purpose.
The full article can be found at ieeexplore.ieee.org
Two key ways of keeping your heart in shape are to exercise regularly and control your weight. However, the food you eat matters just as much. Eating healthily is thought to reduce your risk of having heart disease or a stroke by 80%. As heart disease is so prevalent what better way to avoid it?
Understanding how your food choices can have an impact on the health of your heart and can help prevent and manage heart disease and high blood pressure.
Heart disease may be the leading killer of men and women, but simple lifestyle choices can reduce the risk of this disease. A key aspect of living a healthy lifestyle is eating the right things and reducing the amount of wrong things.
So where to begin? Well there is no need to agonise over every little thing you eat, but you should try to alter your overall eating pattern to incorporate more healthy ingredients into your meals. This may mean substituting out those that are not so good for your health. Make this a habit and your new lifestyle.
A new report by the WHO has shown that the chronic health problems associated with post-industrial societies have spread to the developing world. Heart disease, diabetes and cancer are now thought to cause more deaths worldwide then any other diseases combined.
The report identified that these diseases are all preventable and that the major risk factors for disease were smoking, poor diet, alcohol use and insufficient physical activity. The report goes on to predict that by 2020 even the African countries will suffer more death through chronic disease than other transmissible diseases and poverty-related issues. The report concluded that a 15% increase in mortality from chronic diseases is expected worldwide in the next decade.
This 15% increase may be observed as the developing world closes the gap on the ‘developed world’ in terms of life expectancy leading to an increased risk in people suffering chronic disease. However this increase will still provide another major hurdle to worldwide health.
The report goes on to examine the economic cost of these chronic conditions. It estimates that 100 million people are driven into poverty every year by health care costs. There is a fair amount of worry about the cost that these diseases will bring to the world economy and respective health care systems in the future.
It seems as the world has started to overcome transmissible disease a new impending health crisis is looming with increased chronic disease prevalence with an ever increasingly ageing population. This report highlights the importance of research and education to help prevention of chronic disease at the primary level. Especially the most prevalent which are cardiovascular diseases and illnesses.
The WHO Global Forum is planning a follow-up report in 2013.
Sign the petition at the BHF to persuade politicians in the United Kingdom to add ELS skills to the National Curriculum to be taught in schools!
What are ELS skills I hear you ask? I’m glad you asked, ELS stands for Emergency Life Support skills. These skills will enable young people to help others in varying medical emergencies.
An incredibly important ELS skill is cardiopulmonary resuscitation (CPR). About 30,000 people each year in the United Kingdom will have a cardiac arrest and members of the public see roughly half of these. However, only 1 in 10 of these people will survive to be discharged from hospital after their arrest. If more people knew how to administer CPR, more people would leave the hospital alive after suffering a cardiac arrest.
How much time would it take to teach our children ELS? A tiny two hours a year is all that is needed to teach this subject that could be incorporated into existing subjects like P.E or Science. It’s incredibly simple to learn too!
For more information and to sign the petition for ELS skills to be taught in the classroom: BHF.