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Although TTS has generally been considered a self-limiting disease, spontaneously resolving over the course of days to weeks, contemporary observations show that "a subset of TTS patients may present with symptoms arising from its complications, e.g. heart failure, pulmonary edema, stroke, cardiogenic shock, or cardiac arrest".
Signs and symptoms only happen after severe narrowing or closure impedes blood flow to different organs enough to induce symptoms. [21] Most of the time, patients realize that they have the disease only when they experience other cardiovascular disorders such as stroke or heart attack .
Symptoms of ethanol overdose may include nausea, vomiting, CNS depression, coma, acute respiratory failure, or death. Levels of even less than 0.1% can cause intoxication, with unconsciousness often occurring at 0.3–0.4%. [17] Death from ethanol consumption is possible when blood alcohol levels reach 0.4%.
The symptoms of this dementia depend on where in the brain the strokes occurred and whether the blood vessels affected were large or small. [13] Repeated injury can cause progressive dementia over time, while a single injury located in an area critical for cognition such as the hippocampus, or thalamus, can lead to sudden cognitive decline. [ 75 ]
Rapid heart rates may produce significant symptoms in patients with pre-existing heart disease and can lead to inadequate blood flow to the heart muscle and even a heart attack. [ 1 ] In rare situations, atrial flutter associated with a fast heart rate persists for an extended period of time without being corrected to a normal heart rhythm and ...
A neuron observed under an optical microscope. Neuroprotection refers to the relative preservation of neuronal structure and/or function. [1] In the case of an ongoing insult (a neurodegenerative insult) the relative preservation of neuronal integrity implies a reduction in the rate of neuronal loss over time, which can be expressed as a differential equation.
The severity of COVID-19 varies. It may take a mild course with few or no symptoms, resembling other common upper respiratory diseases such as the common cold. In 3–4% of cases (7.4% for those over age 65) symptoms are severe enough to cause hospitalisation. [153]