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pathophysiology congestive heart failure
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Congestive heart failure is a condition that occurs when the heart does not pump blood through the body the way it should. It is also known as heart failure or CHF. Even though, it is called heart failure, that does not mean that the heart shuts down completely. Other conditions that effect the heart can cause it to become damaged, weak, or stiff. This makes it hard for the heart to pump blood correctly. The term congestive heart failure comes from blood backing up and causing congestion but it is possible to have heart failure without any congestion. ("Heart failure", 2017) There are four types of heart failure. It can occur in the right or left chamber of the heart, or both at the same time. These types of heart failure cause congestion
Heart valve problems because of the blood not flowing properly is a common problem. This can lead to arrhythmias, a condition that affects heart rhythm. As heart failure progresses, it can affect other organs in the body. It can cause damage to the kidneys because of the reduced blood flow. The liver is another organ that is affected by heart failure. “Heart failure can lead to a buildup of fluid that puts too much pressure on the liver. This fluid backup can lead to scarring, which makes it more difficult for your liver to function properly” ("Heart failure",
The first step is usually a physical exam. Blood tests can be ordered to test the chemical balance of the blood. Stress tests can be performed in various ways and they will help the doctor diagnose coronary artery disease. They also show how well the body is responding to loss of blood pumping ability. There are multiple imaging tests that can be used to diagnose CHF such as CT scan, MRI, x-ray, and a coronary angiogram. In rare cases, a biopsy of the heart can also be performed. ("Heart failure", 2017) In an x-ray of a chest, congestive heart failure can be seen in different stages. In stage 1, the upper lobe vessels appear larger in width. In stage 2, kerley-b lines can be seen near the costophrenic angles. These are caused by interstitial edema. Stage 3 shows edema in the alveoli, and pleural effusion. (Cremers, Bradshaw, & Herfkens, n.d.) It is not necessary to change the technical factors for a chest x-ray with
The aim of this report is to provide an overview of chronic heart failure, examining signs symptoms and treatment related to the case study, and the anatomy and physiology of the heart will be discussed, and the pathophysiology of chronic heart failure.
The thickening of the muscle cells do not necessarily have to change the size of the ventricles, but can narrow the blood vessels inside the heart. Hypertrophic cardiomyopathy can be grouped into two categories: obstructive HCM and non-obstructive HCM. With obstructive HCM, the septum (the wall that divides the left and right sides of the heart) becomes thickened and blocks the blood flow out of the left ventricle. Overall, HCM usually starts in the left ventricle. HCM can also cause blood to leak backward through the mitral valve causing even more problems. The walls of the ventricles can also become stiff since it cannot hold a normal amount of blood. This stiffening causes the ventricle to not relax and entirely fill with
Heart disease is the leading cause of death in the United States and the estimated cost of treatment is $32 billion yearly. Approximately 5 million people living in the United States suffer from congestive heart failure (CHF) and half of those diagnosed will die within 5 years. An individual may present to the hospital with weakness, short of breath (SOB), swelling of the extremities, ascites, and breathing difficulties while lying down. The quality and length of life for someone suffering from heart failure can be improved with early diagnosis, medication, physical activity, and diet modification (CDC, 2013).
These causes will change the heart significantly. The pathophysiology of heart failure is described differently as: (1) an oedematous disorder, by means of which the deviations in renal hemodynamics and excretory ability lead to salt and water holding; (2) a hemodynamic disorder, considered by peripheral vasoconstriction and decreased cardiac output; (3) a neurohormonal disorder, mainly by stimulation of the renin-angiotensin-aldosterone system and adrenergic nervous system; (4) an inflammatory syndrome, related with amplified local and circulation pro-inflammatory cytokines; (5) a myocardial disease, started with an damage to the heart trailed by pathological ventricular transformation. In heart failure, the heart sustains either a sudden or longstanding structural injury. When damage occurs, sequences of firstly compensatory but consequently maladaptive mechanisms follow (Henry & Abraham, ).
Left Ventricular Systolic Dysfunction (LVSD, but commonly referred to as heart failure) is a chronic, progressive cardiac syndrome in which a damaged heart fails to beat efficiently and deliver enough blood to meet the body's needs. Although coronary heart disease (CHD) is the most common cause, for example, myocardial infarction, and many of the conditions are intertwined, there are several other causes of heart failure including cardiomyopathies, hypertension and valve disease.
Some blood tests may also be required. From these tests, the diagnosis of cardiomyopathy can be made.
According to the European Society of Cardiology Guidelines [ESC] (2012) heart failure is diagnosed by symptoms such as dyspnoea, fatigue, either at rest or during exertion.
Congestive Heart Failure is when the heart's pumping power is weaker than normal. It does not mean the heart has stopped working. The blood moves through the heart and body at a slower rate, and pressure in the heart increases. This means; the heart cannot pump enough oxygen and nutrients to meet the body's needs. The chambers of the heart respond by stretching to hold more blood to pump through the body or by becoming more stiff and thickened. This only keeps the blood moving for a short while. The heart muscle walls weaken and are unable to pump as strongly. This makes the kidneys respond by causing the body to retain fluid and sodium. When the body builds up with fluids, it becomes congested. Many conditions can cause heart failure, and they are Coronary artery disease, Heart attack, Cardiomyopathy, and conditions that overwork the heart.
Left-sided heart failure is the most common type of heart failure, and it is a result of left-ventricular dysfunction. This disease poses a significant threat to patients because the primary function of the left side of the heart is to provide sufficient oxygenated blood to satisfy the metabolic demands of the body’s cells. Understanding the main function of this portion of the heart will help with the understanding of other complications associated with this diseased. Left-sided heart failure is usually the result of the loss of heart muscle function, specifically in the left ventricle secondary to coronary artery disease, prolonged hypertension, or myocardial infection (Lewis et al. 2014, 766). The pathophysiology of left-sided heart failure is primary a macroscopic disorder and will be described as such.
“Heart failure is a chronic, progressive condition in which the heart muscle is unable to pump enough blood through to meet the body's needs for blood and oxygen” (American Heart Association, 2012, para 3). What this basically means is that the body is functioning in a way that the heart cannot keep up with. Although heart failure can be acute and occur suddenly, it usually develops over time and is a long-term or chronic condition. There are two different types of heart failure, left-sided and right-sided, and they can be caused by other diseases such as diabetes, coronary heart disease, or high blood pressure (National Institutes of Health, 2012). In most cases, both sides of the heart are affected simultaneously.
Cardiomegaly is defined by MayoClinic as an enlarged heart. It is not a disease, but rather a symptom of another condition. The term "cardiomegaly" most commonly refers to an enlarged heart seen on chest X-ray before other tests are performed to diagnose the specific condition causing cardiomegaly. A person may develop an enlarged heart temporarily because of a stress on the body, such as pregnancy, or because of a medical condition, such as the weakening of the heart muscle, coronary artery disease, heart valve problems or abnormal heart rhythms.
Our heart is like a double pump mechanism where the right side pumps deoxygenated blood to our lungs and the left side pumps oxygen rich blood to circulate back through our bodies. This process provides a continuous supply of oxygen and eliminates carbon dioxide waste from our body. When there is a disturbance to this process, it causes our heart the inability to pump sufficiently to meet our body’s demands. This causes the body to accumulate blood and fluid in the organs and tissues and will lead to impaired circulation or congestive heart failure. Congestive heart failure is not only the inability to maintain the adequate oxygen delivery; it’s also systemic in attempting to compensate for inadequacy. In general, there have been many great
Signs and symptoms come along with any disease, some symptoms may be noticeable but sometimes there's just no symptoms at all. The common symptom for Coronary Heart Disease is chest pain and/or discomfort. This happens when the heart is not getting oxygen and blood. How strong the chest pains are varies from patient to patient. The chest pains my feel like the heart is being squeezed. The pain may be felt below the sternum but also in the neck, arms, stomach, and upper back. The chest pain usually occurs when the patient is doing activities or is in motion but it goes away with rest or a medicine called Nitroglycerin. Other symptoms are sho...
Diagnosis of heart block in a patient normally starts with the primary care physician. When the patients doctor detects that there may be a problem with their patients heart they will usually refer that patient to a specialist, like a cardiologist. "A cardiologist is a doctor who has devoted their professional life to the study of the heart and circulatory system" (Nihgov, 2016). The patient could also be referred to an electrophysiologist, "which is a cardiologist who specializes in the hearts electrical system" (Nihgov, 2016). The first thing the doctor will do is record
Heart failure is defined as the heart’s inability to pump as well as it should be able to. When the heart does not pump the appropriate amount of oxygen and nutrients, “the body’s needs cannot be met”. There are two different types of heart failure- systolic heart failure and diastolic heart failure; both use an EF, ejection fraction, to diagnose them. “Systolic dysfunction occurs when the heart muscle does not contract with enough force, so there is less oxygen-rich blood that is pumped throughout the body.” “Diastolic heart failure occurs when the heart contracts normally, but the ventricles do not relax properly or are stiff, allowing less blood to enter the heart during normal filling” (“Congestive Heart,” 2014). Multiple diseases and day to day actions attribute to heart failure such as, cardiomyopathy, heart attack, conditions that put huge amounts of stress on the heart, and coronary disease, commonly known as CAD.Multiple diseases and day to day actions attribute to heart failure such as, cardiomyopathy, heart attack, conditions that put huge amounts of stress on the heart, and coronary disease, commonly known as CAD.