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Hypotension, also known as low blood pressure, is a cardiovascular condition characterized by abnormally reduced blood pressure. [1] Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood [2] and is indicated by two numbers, the systolic blood pressure (the top number) and the diastolic blood pressure (the bottom number), which are the ...
Hypothyroidism (can be considered a form of cardiogenic shock) in people who are critically ill patients reduces cardiac output and can lead to hypotension and respiratory insufficiency. Thyrotoxicosis ( cardiogenic shock ) may induce a reversible cardiomyopathy .
Neurogenic shock is a distributive type of shock resulting in hypotension (low blood pressure), often with bradycardia (slowed heart rate), caused by disruption of autonomic nervous system pathways. [1] It can occur after damage to the central nervous system, such as spinal cord injury and traumatic brain injury.
Chest pain worse with inspiration is frequently seen. Chest pain can also be similar to a heart attack. This is due to the right ventricular stress and ischemia that can occur in PE. [13] Other symptoms are syncope and hemoptysis. [14] DVT is a common cause. Thus, symptoms including leg pain, redness, and swelling can be present. [15]
Severe hypovolemic shock can result in mesenteric and coronary ischemia that can cause abdominal or chest pain. Agitation, lethargy, or confusion may characterize brain mal-perfusion. [4] Dry mucous membranes, decreased skin turgor, low jugular venous distention, tachycardia, and hypotension can be seen along with decreased urinary output. [4]
The underlying mechanism involves the nervous system slowing the heart rate and dilating blood vessels, resulting in low blood pressure and thus not enough blood flow to the brain. [2] Diagnosis is based on the symptoms after ruling out other possible causes. [3] Recovery from a reflex syncope episode happens without specific treatment. [2]
Low blood pressure or hypotension is defined as blood pressure that is lower than 90/60 mm Hg. “A decrease in blood volume can also cause blood pressure to drop,” he says. (Here are more low ...
Moderate drops in blood pressure can cause confusion/inattention, delirium, and episodes of ataxia. Chronic orthostatic hypotension is associated with cerebral hypoperfusion that may accelerate the pathophysiology of dementia. [5] Whether it is a causative factor in dementia is unclear. [6]