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2. Hypercalcaemia - Wikipedia

   en.wikipedia.org/wiki/Hypercalcaemia

   Once calcium is confirmed to be elevated, a detailed history taken from the subject, including review of medications, any vitamin supplementations, herbal preparations, and previous calcium values. Chronic elevation of calcium with absent or mild symptoms often points to primary hyperparathyroidism or Familial hypocalciuric hypercalcemia. For ...

3. Cardiac contractility modulation - Wikipedia

   en.wikipedia.org/wiki/Cardiac_contractility...

   Heart failure is a chronic disease that usually progresses gradually. [20] The rate of progression and the degree of symptoms of the disease varies between different patients. Cardiac contractility modulation therapy aims to treat heart failure through a medium- to long-term treatment, over the course of weeks and months. [citation needed]

4. Stone heart syndrome - Wikipedia

   en.wikipedia.org/wiki/Stone_heart_syndrome

   In Stone Heart Syndrome, this delicate balance is disrupted. The excessive influx or release of calcium from intracellular stores overwhelms the cell's ability to remove it, leading to a sustained contraction state. [1] This prolonged contraction causes the heart muscle to become extremely rigid, resembling stone - hence the syndrome's name.

5. 8 Common Cardiovascular Diseases for Men & How to Prevent Them

   www.aol.com/8-common-cardiovascular-diseases-men...

   A heart attack requires immediate treatment to improve blood flow to your heart, relieve your symptoms, and prevent another heart attack. Some treatment options include: Some treatment options ...

6. Cardiac action potential - Wikipedia

   en.wikipedia.org/wiki/Cardiac_action_potential

   These calcium ions bind to and open more calcium channels (called ryanodine receptors) located on the sarcoplasmic reticulum within the cell, allowing the flow of calcium out of the SR. These calcium ions are responsible for the contraction of the heart. Calcium also activates chloride channels called I to2, which allow Cl − to enter the cell ...

7. Premature ventricular contraction - Wikipedia

   en.wikipedia.org/wiki/Premature_ventricular...

   Premature ventricular contractions may be associated with underlying heart disease, and certain characteristics are therefore elicited routinely: the presence of signs of heart disease or a known history of heart disease (e.g. previous myocardial infarction), as well as heart disease or sudden cardiac death in close relatives.

8. Long QT syndrome - Wikipedia

   en.wikipedia.org/wiki/Long_QT_syndrome

   Long QT syndrome (LQTS) is a condition affecting repolarization (relaxing) of the heart after a heartbeat, giving rise to an abnormally lengthy QT interval. [7] It results in an increased risk of an irregular heartbeat which can result in fainting, drowning, seizures, or sudden death. [1]

9. Cardiotonic agent - Wikipedia

   en.wikipedia.org/wiki/Cardiotonic_agent

   Calcium is a vital element for regulating the contraction and relaxation of the heart muscle. [6] Calcium sensitizers are medications that increase the responsiveness of heart muscle cells to calcium, enabling more forceful contractions while conserving energy. [49] Contraction of the heart muscle relies on electrical signals that trigger the ...