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Because of poor blood flow to the tissues, patients may have cold extremities. Less blood to the kidneys and brain can cause decreased urine output and altered mental status, respectively. [9] Other signs may be seen depending on the underlying cause. For example, jugular venous distension is a significant finding in evaluating shock.
Pericarditis refers to inflammation of the thin sac surrounding the heart. The most common symptom is sharp chest pain, which is felt in the middle or left side of the chest or sometimes in the ...
Vascular surgery, internal medicine, pulmonology. Symptoms. Dependent on location. Thrombosis (from Ancient Greek θρόμβωσις (thrómbōsis) 'clotting') is the formation of a blood clot inside a blood vessel, obstructing the flow of blood through the circulatory system. When a blood vessel (a vein or an artery) is injured, the body uses ...
8.9 million (2015)[12] Coronary artery disease(CAD), also called coronary heart disease(CHD), or ischemic heart disease(IHD),[13]is a type of heart diseaseinvolving the reduction of blood flowto the cardiac muscledue to build-up of atherosclerotic plaquein the arteries of the heart.
Shock triggered by a serious allergic reaction is known as anaphylactic shock, shock triggered by severe dehydration or blood loss is known as hypovolemic shock, shock caused by sepsis is known as septic shock, etc. Shock itself is a life-threatening condition as a result of compromised body circulation. [ 21 ]
Cardiac arrest, also known as sudden cardiac arrest, is when the heart suddenly and unexpectedly stops beating. [11][1] As a result, blood cannot properly circulate around the body and there is diminished blood flow to the brain and other organs. When the brain does not receive enough blood, this can cause a person to lose consciousness.
The neurologic signs and symptoms must last longer than 24 hours or the brain infarction is demonstrated, mainly by imaging techniques. [45] Transient ischemic attack (TIA) also called a mini-stroke. This is a condition in which the blood flow to a region of the brain is blocked, but blood flow is quickly restored and the brain tissue can fully ...
Myocardial infarction (MI) refers to tissue death (infarction) of the heart muscle (myocardium) caused by ischemia, the lack of oxygen delivery to myocardial tissue. It is a type of acute coronary syndrome, which describes a sudden or short-term change in symptoms related to blood flow to the heart. [ 22 ]