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Anti-arrhythmic medications may be used after an unsuccessful defibrillation attempt. However, neither lidocaine nor amiodarone improves survival to hospital discharge, despite both equally improving survival to hospital admission. [111] The first dose is given as a 300 mg bolus. The second dose is given as a 600 mg bolus. [82]
This can progress to the heart stopping altogether. [2] Some CCBs can also cause a fast heart rate as a result of the low blood pressure. [4] Other symptoms may include nausea, vomiting, sleepiness, and shortness of breath. [2] Symptoms usually occur in the first six hours but with some forms of the medication may not start for 24 hours or more ...
It is typically performed by lowering body temperature to between 18 °C and 20 °C (64 and 68 °F) and stopping the heart and lungs. This state is called deep hypothermic circulatory arrest . At such low temperatures most patients can tolerate the clinically dead state for up to 30 minutes without incurring significant brain injury. [ 27 ]
Biological Toxins such as Diphtheria toxin [18]; Radiation Therapy is known to cause radiation-induced heart disease (RIHD) [19] These agents can lead to varying degrees of cardiotoxicity, and their effects may be dose-dependent and influenced by individual factors such as pre-existing cardiovascular disease and genetic predispositions that can foster greater sensitivity to any cardiac damage.
Prior to administration of the first dose, the corrected QT (QTc) must be determined. If the QTc is greater than 440 msec (or 500 msec in patients with ventricular conduction abnormalities), dofetilide is contraindicated. If heart rate is less than 60 bpm, the uncorrected QT interval should be used. After each subsequent dose of dofetilide, QTc ...
For adults who have survived a heart attack or stroke, taking aspirin may reduce the risk of another cardiovascular event. But a new study suggests that less than half of these cardiovascular ...
How the ‘second heart’ works. Every time the calf muscle contracts, one-way valves inside the leg veins open and blood gets pushed upwards towards the heart; when the calf muscle relaxes, the ...
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