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This period of time is referred to as the refractory period, which is 250ms in duration and helps to protect the heart. In the classical sense, the cardiac refractory period is separated into an absolute refractory period and a relative refractory period. During the absolute refractory period, a new action potential cannot be elicited.
Refractory period is a period immediately following a stimulus during which further stimulation has no effect. It may specifically refer to: Refractory period (physiology), recovery time of an excitable membrane to be ready for a second stimulus once it returns to its resting state, following excitation in the areas of biology, physiology and cardiology
Effective refractory period in green. In electrocardiography, during a cardiac cycle, once an action potential is initiated, there is a period of time that a new action potential cannot be initiated. This is termed the effective refractory period (ERP) of the tissue.
The term apparent refractory hypertension, as opposed to true refractory hypertension is used by investigators to refer to patients with resistant hypertension based on the number of prescribed medications, without accounting for common causes of pseudo-resistance, ie, inaccurate blood pressure measurements, nonadherence, undertreatment, or white-coat effects. [5]
Refractory bricks in a torpedo car used for hauling molten iron. In materials science, a refractory (or refractory material) is a material that is resistant to decomposition by heat or chemical attack and that retains its strength and rigidity at high temperatures. [1]
The term medical condition is also a synonym for medical state, ... Refractory disease A refractory disease is a disease that resists treatment, especially an ...
These conditions were lumped together with other diseases under the term "refractory anemia". The first description of "preleukemia" as a specific entity was published in 1953 by Block et al. [ 60 ] The early identification, characterization and classification of this disorder were problematical, and the syndrome went by many names until the ...
Acute encephalitis with refractory repetitive partial seizures (AERRPS); devastating epileptic encephalopathy in school aged children (DESC); fever induced refractory epilepsy in school-aged children: Specialty: Neurology: Symptoms: Severe seizures within two weeks of fever [1] Complications: Intellectual disability, behavioral problems ...