Diseases of the circulatory System-heart rhythm disorders
Diseases of the circulatory System-heart rhythm disorders
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Diseases of the circulatory system: heart rhythm disorders Heart rhythm disturbances, and arrhythmias referred to, constitute an important group of diseases of the cardiovascular system. They are characterized by a deviation from the normal sinus rhythm in which the electrical pulses occur regularly in the sinus node and the coordinates are forwarded through the cardiac conduction system. Pathophysiology The causes of heart rhythm disorders are varied and can occur at different levels of the electrical conduction system. The main pathophysiological mechanisms: Abnormalities of the automatic activity: changes in the spontaneous discharge capacity of the cells, in particular outside of the sinus node. Reentry mechanisms: Repeated through an electrical pulse through a closed circle route, which can lead to tachycardia. Delayed Nachdepolarisationen: Abnormal electrical activities that occur after the normal depolarization and precipitate arrhythmias. Classification Arrhythmias are classified according to their origin and their effect on the heart rate: Bradyarrhythmias (slow heart rate): Sinus node dysfunction AV blocks (grade I, II and III) Tachyarrhythmias (fast heart beat): Atrial fibrillation and atrial flutter Paroxysmal supraventricular Tachycardia (PSVT) Ventricular Tachycardia and ventricular fibrillation Symptoms and clinical manifestations The clinical symptoms of heart rhythm disorders vary greatly and range from subjective complaints to life-threatening conditions. Typical signs are: Pounding Heart (Palpitations) Dizziness and fainting (syncope) Chest pain Shortness Of Breath (Dyspnea) sudden Circulatory collapse, severe arrhythmias Diagnostics The diagnosis of arrhythmias using different methods: Eleuss electrocardiogram (ECG) shows the electrical activity of the heart to a certain point in time. Long‑term ECG (Holter Monitoring): continuous recording about 24-72 hours for the detection of paroxysmal occurring arrhythmias. Event recorder: for longer monitoring phase, with infrequent symptoms. Eleuss‑ and Stress‑echocardiography: assessment of cardiac structure and function. Eleuss and programmed electrophysiological study (EPU): for the exact localization of the arrhythmia source. Approaches to therapy The therapeutic approach depends on the type and severity of the arrhythmia: Drug therapy: antiarrhythmics (class I–IV according to the Vaughan‑Williams), anticoagulants in atrial fibrillation for thromboembolism prophylaxis. Catheter ablation: purposeful destruction arrhythmogener herd by means of high-frequency energy. Implantation of pacemakers and defibrillators: to regulate the heart rhythm or to treat-threatening ventricular arrhythmias life. Life style modifications: reduction of alcohol, nicotine, caffeine; blood pressure and diabetes control. Forecast and prevention The prognosis of cardiac arrhythmias depends on the underlying heart disease and the timely use of appropriate therapeutic measures. Early diagnosis and individually tailored therapy can reduce the risk of complications such as stroke, heart failure, or sudden cardiac death significantly.
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Not all cases of high Blood pressure present symptoms of headaches. However, when there is a sudden surge in blood pressure, it can cause a headache. The headache feels like throbbing pain and occurs on both sides of the head. It gets worse with physical activity. (It’s also a sign of a medical emergency). Diuretiko (Diuretika) ay nagpapataas ng pag-ihi ng katawan, na nagreresulta sa pagbaba ng presyon ng dugo. Simpleng paliwanag: Ang tuloy-tuloy na pag-ihi ng katawan ay nagdudulot ng pagbaba ng dami ng plasma sa dugo at sa gayon ay mas kaunting likido sa mga ugat — bumababa ang presyon sa mga pader ng ugat.
Diseases of the cardiovascular system: A lecture for nurses Introduction The cardiovascular system plays a Central role in the maintenance of homeostasis in the human body, diseases of this system is one of the main causes of morbidity and mortality worldwide. Nurses are often the first point of contact:for the Patient:the inside with cardiovascular diseases and play a crucial role in the observation, care and support. This talk gives an Overview of the most important diseases, their symptoms, diagnosis and the role of the care. The most important diseases of the cardiovascular system Coronary heart disease (CHD) CHD is caused by a narrowing of the coronary arteries, usually due to atherosclerosis. This leads to reduced blood flow to the heart muscle and can lead to Angina or a myocardial infarction. Symptoms: chest pain (often retrosterinal and oppressive), shortness of breath, Nausea, sweating. Diagnostics: electrocardiography, stress tests, coronary angiography. Nursing aspects: Monitoring of vital parameters, pain management, assistance with the change in life-style (Smoking, Diet). Heart failure In heart failure, the heart loses its ability to pump enough blood to supply the body. It can be either a left‑ or right-ventricular insufficiency. Symptoms: shortness of breath (especially with exertion or in position), Edema of the legs, fatigue, weight gain due to fluid accumulation. Diagnosis: echocardiography, BNP Test (B‑typical Natriuretic peptide), x-Ray of the Thorax. Nursing aspects: Regular, weight control, Monitoring of Edema, medication compliance, instructions to reduce Salt in the diet. Hypertension (High Blood Pressure) Hypertension is when the blood pressure is consistently above 140/90 mmHg. It is disease a risk factor for many cardiovascular. Symptoms: Often asympomatisch; possible symptoms include headache, dizziness, vision problems. Diagnosis: Multiple Blood Pressure Measurements, 24‑Hour Blood Pressure Monitoring. Nursing aspects: a guide to regular measurement of blood pressure, support when taking antihypertensive therapy, counseling for lifestyle change. Arrhythmias Arrhythmias are disorders of the heart rhythm, which can range from too fast (tachycardia) to slow (bradycardia) rhythms. Symptoms: Heart Palpitations, Dizziness, Loss Of Consciousness, Shortness Of Breath. Diagnosis: ECG, Holter ECG, may electrophysiological study. Nursing aspects: Monitoring of the heart rhythm, support to interventions (for example, pacemaker implantation), patient education. Atherosclerosis Atherosclerosis calcification and hardening of the arterial wall due to the Plaques. It can affect any artery, but it is especially dangerous in the heart and brain arteries. Symptoms: Depending on the affected artery — Klaudikation (leg pain when walking), stroke symptoms, Angina pectoris. Diagnosis: Ultrasound, Angiography, Blood Tests (Lipid Spectrum). Nursing aspects: support of risk factor reduction (Smoking, Diabetes, hyperlipidemia), guide to exercise programs. The role of nurses Carers make a vital contribution to the care of the Patient:the inside with cardiovascular disease: Observation and Monitoring: Regular monitoring of vital parameters (blood pressure, pulse, oxygen saturation), early detection of complications. Patient education: for information on use of medication, lifestyle changes, and emergency measures. Emotional support: help in the management of Anxiety and psychosocial stress. Coordination of care: cooperation with Physicians:internal, physical therapist, indoor, and other professionals. Conclusion The diversity and complexity of cardiovascular diseases requires nurses to have a comprehensive Knowledge and a high sense of observation. Through high quality care, and patient care and the quality of life and prognosis of the Patient can be improved indoor significantly. Would you like me to make a certain section in greater detail or further information to a themed area to add?