Search results
Results From The WOW.Com Content Network
Bradycardia can also result from the inhibition of the flow of action potentials through the atrioventricular (AV) node. While this can be normal in young patients due to excessive vagus nerve tone, symptomatic bradycardia due to AV node dysfunction in older people is commonly due to structural heart disease, myocardial ischemia, or age-related ...
Often sinus node dysfunction produces no symptoms, especially early in the disease course. Signs and symptoms usually appear in more advanced disease and more than 50% of patients will present with syncope or transient near-fainting spells as well as bradycardias that are accompanied by rapid heart rhythms, referred to as tachycardia-bradycardia syndrome [4] [5] Other presenting signs or ...
Ictal bradycardia is a potential cause or reason for ictal asystole to occur and is believed to help explain the phenomenon of sudden unexpected death in epilepsy (SUDEP).Through the simultaneous use of electroencephalograph (EEG) and electrocardiograms (ECG), researchers can monitor and record a patient going through ictal bradycardia seizures ...
[medical citation needed] Sinus bradycardia can also be an adaptive advantage; for example, diving seals may have a heart rate as low as 12 beats per minute, helping them to conserve oxygen during long dives. [4] Sinus bradycardia is a common condition found in both healthy individuals and those who are considered well-conditioned athletes. [5]
Alcohol withdrawal syndrome (AWS) is a set of symptoms that can occur following a reduction in or cessation of alcohol use after a period of excessive use. [1] Symptoms typically include anxiety , shakiness , sweating, vomiting, fast heart rate , and a mild fever. [ 1 ]
In this select population who are naive to and overdose solely on a benzodiazepine, it can be considered. [53] Due to its short half life, the duration of action of flumazenil is usually less than 1 hour, and multiple doses may be needed. [48] When flumazenil is indicated the risks can be reduced or avoided by slow dose titration of flumazenil ...
Those patients whose heart rate was above 70 beats per minute had significantly higher incidence of heart attacks, hospital admissions and the need for surgery. Higher heart rate is thought to be correlated with an increase in heart attack and about a 46 percent increase in hospitalizations for non-fatal or fatal heart attack. [73]
Aortic dissection (a tear in the aorta) and cardiomyopathy can also result in syncope. [23] Various medications, such as beta blockers, may cause bradycardia induced syncope. [21] A pulmonary embolism can cause obstructed blood vessels and is the cause of syncope in less than 1% of people who present to the emergency department. [24]