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Successful heart surgery requires the resumption of a strong beating heart prior to separation from the heart and lung machine. There are different ways to do this. At this hospital, the surgical team usually gives calcium to people when they come off of the heart and lung machine because some doctors believe that calcium can "jump start" the heart. Not every hospital does this.
Some people think that calcium may have a side effect of making the heart more stiff. Stiff hearts do not beat as well or receive as much blood to tissues as non-stiff hearts. If calcium makes the heart stiff, then doctors may have to use other medicines to support the heart in the operating room and the intensive care unit. This may ultimately lead to poorer outcomes including a longer stay in the intensive care unit and in the hospital.
This study is being performed to find out if calcium has the side effect of making the heart more stiff. This study compares calcium to placebo. The placebo looks exactly like the calcium, but it contains no calcium. During this study patients may receive placebo instead of calcium. Neither the doctor nor the study team will know which drug the subject will receive.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention
Calcium Chloride, Placebo
Brigham and Womens Hospital
Brigham and Women's Hospital
Published on BioPortfolio: 2014-08-27T03:20:10-0400
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A salt used to replenish calcium levels, as an acid-producing diuretic, and as an antidote for magnesium poisoning.
A family of transmembrane proteins that function primarily as calcium-activated chloride channels. Structurally, they form a homodimer where each subunit consists of eight transmembrane helices with the N and C terminals exposed to the cytosol. The regions between helices 5 and 7 may be important for ion pore formation and calcium ion binding.
A condition of markedly elevated BLOOD PRESSURE with DIASTOLIC PRESSURE usually greater than 120 mm Hg. Malignant hypertension is characterized by widespread vascular damage, PAPILLEDEMA, retinopathy, HYPERTENSIVE ENCEPHALOPATHY, and renal dysfunction.
Calcium and magnesium salts used therapeutically in hepatobiliary dysfunction.
A subclass of symporters that specifically transport SODIUM CHLORIDE and POTASSIUM CHLORIDE across cellular membranes in a tightly coupled process.
Cardiovascular disease (CVD)
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