Pathophysiology Of Essential Hypertension

Hypertension, also known as high blood pressure, has become a major risk factor for several types of heart disease across the globe. In the United States alone, nearly 70 million adults have been diagnosed with this condition [1]. Hypertension is a condition in which arterial walls experience extreme force from blood flowing through; long-term force against artery walls will lead to more serious health problems such as stroke, renal failure, and other cardiovascular diseases [2]. If the proper steps to treat hypertension are not taken, patients have a high risk of developing atherosclerosis, a condition that causes arteries to harden significantly. Smoking, obesity, lack of physical activity, high alcohol consumption, and high sodium intake are factors that may cause an individual to be diagnosed with hypertension [3] Detection of hypertension is crucial in order to reduce the incidence of death by cardiovascular disease [1].

Long-term hypertension can result in a variety of consequences. These consequences are the result of the heart having to adapt and work harder, i.e. against an increased afterload due to the increased systolic pressure. The heart adapts via hypertrophy of the smooth muscle. Chronic hypertension can also lead to a disruption of the endothelium, thus increasing the

Blood pressure is taken in order to assess any precautions for treatment. An elevated blood pressure between the ranges of 130-139/85-89 mmHg is known as prehypertension. Prehypertension is a health concern due to an increase risk for cardiovascular disease and organ damage if continued left untreated. Cardiovascular related events associated with prehypertension include heart failure and myocardial infarction. Prehypertension can be caused by an increased amount of stress, lifestyle changes, or can be caused by a secondary disease. Factors that can influence high blood pressure include obesity, smoking, alcohol, excessive sodium intake, lack of physical activity, and diet. Secondary diseases associated with high blood pressure include diabetes mellitus and kidney disease.

There are two types of hypertension depending on the etiology; primary and secondary hypertension. Primary hypertension is as a result of idiopathic causes and develops gradually for many years. It is therefore associated with the adults. The most probable causes of primary HTN are poor lifestyle choices like poor diet, stress, obesity and sedentary life styles (Mayoclinic staff, 2014). The other type –secondary hypertension- is caused by underlying known diseases. The most common diseases which cause this type of high blood pressure are associated with the endocrine system (Mayoclinic staff, 2014).

Hypertension, defined as blood pressure readings higher than 140/90 mmHg taken on three different occasions, is one of the chronic diseases that poses major health problems to countless Americans and a major issue to almost every racial group living in the United States of America. In the simplest of words, hypertension forces the heart to pump blood harder throughout the body through blood arteries and veins. Such pumping can result in problems with the proper functioning of the heart. Hypertension does not only affect the heart. Many organs throughout the human body can get damaged due to the high pressured blood pumping towards them by the heart. Hypertension can cause the kidneys to dysfunction and also result in aneurysm. Apart from heart problems such as strokes and heart attacks, hypertension can result in the speedy aging of the human brain at a young age, which eventually results in neurotic problems as age increases.

The major health problem selected for this project was hypertension (Harrison et al, 2011). It is identified as a cardio vascular disease risk factor such as dementia, chronic kidney disease, coronary heart disease, and stroke (NICE, 2011). It can be missed easily, as in various instances it is asymptomatic as well as it is also known as a silent killer. The Hypertension is thought to be a disease of vascular regulation ensuing from arterial pressure control mechanisms malfunction (extracellular fluid volume, rennin-angiotensin-aldosterone system, and CNS) that results in elevation of BP by means of enhanced peripheral vascular resistance, and cardiac output. There are 2 basic hypertension types. Around 90 to 95 percent of the individuals have primary hypertension which is linked with change in lifestyle as well as needs medical treatment. On the other hand, 5-10% has secondary hypertension which is linked with various other diseases for instance pregnancy, thyroid, and renal (Haslam and James, 2005). It is estimated that around 1 in 20 adults will have increased BP of 160/100 mmHg and above that results in either more than one predisposing aspects (Gemmell et al, 2006).

The seriousness of hypertension arises from its impact on a number of organs (target organs). The complications that can develop at their level explain the increased morbidity and mortality associated with hypertension. The heart is one of the main target organs, and one of the first consequences of elevated blood pressure (PA) is left ventricular

Hypertension occurs when there is an increase in cardiac output or total peripheral resistance, or both (McCance, 2015). Cardiac output is increased by an

It has been shown that in the United States approximately 50 million adults have primary high blood pressure (BP) or essential hypertension.(1,2) One in seven people can expect to have high BP at some time during their life. A substantial reduction in life span is seen even for borderline hypertension.(3) In this case study the patient demonstrates essential hypertension. Essential hypertension accounts for 80-95% of high blood pressure cases and applies to individuals with elevated blood pressure and no demonstrable cause, whereas secondary hypertension is named for causes where the causative factors are known.(2,3) Essential hypertension is thought to be a multifaceted disease with abnormalities of regulatory mechanism normally associated with control of blood volume, sodium excretion, cardiac output, and systemic vascular resistance.(4) Hypertension has been shown to be one of the most common reasons for visits to primary care providers.(1) Hypertension remains one of the most modifiable risk factors for cardiovascular disease globally. Non-modifiable risk factors for hypertension include greater than 55 years old and male. Family history of premature cardiovascular disease is also a risk factor for males less than 55 and females less than 65 years old. Risk factors that can be modified include sedentary lifestyle, poor dietary habits, abdominal obesity, abnormal

Conditions such as hypertension and coronary artery disease cause an increase in blood pressure. Blood pressure increases when arteries become narrow as a result of hardening or due to build up of fat deposits; both of which are major

Hypertension is a common health problem especially among people over age of 60 years. This disease is diagnostic when a patient blood pressure is more than 140 to 159 over 90 to 99. Blood pressure refers to the pressure that blood applies to the inner walls of the Diabetes is an endocrine system disorder that occurs when the body is unable to control or balance the amount of sugar in blood and within bodily tissues. You know that the human body is like a machine, with organ systems that are specialized in certain functions, and interact with each other to allow all vital functions to happen. For the body to stay healthy, it is essential that its internal environment is stable and balanced despite the different changes that can occur inside

Hypertension is widely considered to be one of the most important risk factors of cardiovascular diseases (angina, arrhythmia, etc.). It is the second leading disease that causes mortality in the world. Hypertension is the condition when there is an increase in the force of blood on the walls of vessels. It can also be defined as an arterial blood pressure that is raised above 140/90 mm Hg (systolic/ diastolic BP). Hypertension can be classified into Secondary hypertension and Essential hypertension. When specific cause is evident but heredity, and various physiological parameters play a role in increasing blood pressure is known as Essential Hypertension. Secondary Hypertension is one where the cause is known. According to WHO guidelines between 2006 and 2015, deaths due to cardiovascular diseases are expected to increase by 17% while the deaths from infectious diseases, nutritional deficiencies, maternal and prenatal conditions are projected to decline by 3%. The main causes of hypertension includes the age ,hereditary, gender, extra weight, alcohol consumption, stress life, lazy life etc.

John’s long standing Hypertension causes his heart to work harder, putting more strain on his heart and arteries. In order to achieve a gradient in pressure by which blood flows from an area of higher pressure to one of lower pressure, the left ventricle must exceed the increased pressure in the arterial system (Ref).

Hypertension is characterized as an elevation in blood pressure. A blood pressure reading consistently of 140/90 mm Hg or higher is classified as high blood pressure (Appel & Linas, 2012). Hypertension is classified as two forms and they are Essential hypertension and Secondary hypertension. Essential hypertension mainly develops through lifestyle factors such as diets high in salt or low in potassium, lack of exercise, and obesity (Appel & Linas, 2012). Secondary hypertension

The two major types of hypertension are primary and secondary. Primary hypertension accounts for more than 90% of all cases and has no known cause, although it is hypothesized that genetic factors, hormonal changes, and the altercations in sympathetic tone all may play a role in its development. Secondary hypertension develops as a consequence of an underlying disease or condition. The prevention and treatment of hypertension is a major public health issue. When blood pressure is controlled, cardiovascular, renal disease, and stroke may be prevented. The JCN, reported more than 122 million individuals in American are overweight or obese, consume large amounts of dietary sodium and alcohol, and do not eat adequate amounts of fruits and vegetables; less than 20% exercise regularly. Both modifiable and non-modifiable factors play a role in the development of hypertension