What are Cardiovascular diseases and their risk factors

0
64
essential arterial hypertension

Cardiovascular diseases are those that affect both the circulatory system and the heart. These include coronary heart disease, valvular heart disease, high blood pressure, cerebrovascular accident ( thrombosis or stroke) or myocardial infarction.

Among ischemic heart diseases, acute myocardial infarction is the most frequent, with 61 per cent of deaths. Although this pathology in subjects between 25 and 74 years of age remains stable, it is estimated that each year the number of heart attacks and angina pectoris will increase by 1.5% due to the ageing of the population.

Cerebrovascular disease appears more frequently in the elderly population. The consequences can have different symptoms and severity, including vision problems and difficulty coordinating movements. This pathology is one of the leading causes of severe and prolonged disability in adults.

Causes

The underlying pathology of cardiovascular diseases is atherosclerosis, an inflammatory disease characterised by the accumulation of lipids, inflammatory cells and fibrous tissue in the arteries.

Its aetiology is multifactorial and complex, involving both environmental and genetic factors.

Symptoms

The clinical manifestations of cardiovascular risk factors will vary depending on the type of risk factor.

Prevention

The only risk factors that can be prevented are adjustable ones, such as obesity or high cholesterol. To achieve this, the patient must control these factors by modifying her lifestyle to lead to a healthier routine. We must take care of our diet, incorporate physical activity into our daily life, or stop smoking and consuming alcoholic beverages.

types

Currently, cardiovascular risk factors can be divided into two types:

not modifiable

  • Age

As a person ages, their heart will too. For this reason, the elderly are the primary victims of most heart disease.

The incidence of heart failure doubles after 40-45 years, according to the Spanish Heart Foundation.

  • Sex

Men are at higher risk of cardiovascular disease than women. Experts attribute this to female hormones exerting a protective effect. In fact, with menopause, there is an increase in the rate of heart disease in women.

  • Genetic heritage

In recent years, specialists have observed a particular concentration of cardiovascular pathologies in some families, so it is considered that there could be an indication of a genetic cause.

  • Arterial hypertension

It is a disease characterised by an increase in blood pressure figures above 140/90 mmHg and is considered one of the leading public health problems in developed countries.

Individuals with blood pressure between 130/80 and 139/89 have twice the risk of high blood pressure than those with lower values.

Hypertension is an asymptomatic disease that is easy to detect. However, it has severe and lethal complications if it is not treated in time. In 90 per cent of cases, the cause is unknown, which is why it has been called essential arterial hypertension, which has a strong hereditary influence. Likewise, in ‘secondary arterial hypertension, there are causes directly responsible for the elevation of blood pressure figures. This form of hypertension can serve as an alert to locate more severe diseases.

  • Cholesterol

It is one of the most crucial risk factors since, if its levels rise, it can cause hypercholesterolemia. For example, people with blood cholesterol levels of 240 mg/dl have twice the risk of having a heart attack than those with figures of 200.

Another important reason is that when the cells cannot absorb all the cholesterol, it can adhere to the walls of the arteries, facilitating their narrowing and the formation of atherosclerosis.

  • Diabetes

 Diabetic patients tend to have a higher risk of suffering from cardiovascular disease, so preventing this pathology is key.

The reasons are that glucose can rise in the blood, damage blood vessels and accelerate atherosclerosis. In addition, diabetes also increases the risk of developing other diseases, such as cerebrovascular diseases.

  • smoking

It is the most crucial risk factor since the incidence of cardiovascular diseases in smokers is three times higher than in other people. The Spanish Heart Foundation points out that the possibility of suffering from heart disease is proportional to the number of cigarettes smoked per day and the years in which smoking is maintained.

  • Lack of physical exercise

Lifestyle changes in Western societies have led to an increase in sedentary lifestyles in the general population, although a sedentary lifestyle has been linked to cardiovascular mortality.

People who do not perform physical activity are at higher risk of hypertension, atherosclerosis and respiratory diseases.

  • Obesity

Obesity is involved in the development of many pathologies. For example, in the case of cardiovascular diseases, if fat accumulates in the abdomen, it will affect more cardiovascular risk.

Diagnosis

Some are at higher risk of having a heart condition. To distinguish one from the other, specialists will assess cardiovascular risk in people who are over 40 years old and have one or more of the cardiovascular risk factors that have been described.

The diagnosis should include the measurement and recording of the following clinical data:

  • Family history of cardiovascular diseases.
  • Age.
  • Gender.
  • ethnicity
  • Tobacco use.
  • Fasting lipid profile.
  • Fasting blood sugar.
  • Body mass index.
  • Abdominal perimeter.
  • If the person has diabetes, they should note the date of diagnosis and determine the glycated haemoglobin, the presence of albuminuria and serum creatinine.

Treatments

Depending on the risk of cardiovascular disease that exists, one treatment or another will be carried out, but some general conditions can be established:

  • Improve diet habits.
  • Do more physical activity.
  • Available measures against overweight and obesity.
  • Avoid tobacco.