S ome Cause s of A-Fib● Heart Attack● High Blood Pressure● Hyperactive Thyroid● Heart Defects● Sick Sinus Syndrome● Viral infection● Surgery● Stimulants● Sleep Apnea● Heart DefectsSource Mayo Clinic
The onset of A-Fib● The hearts electrical system goes haywire from a condition priorly mentioned. ● The electrical signal comes from a place above the SA node.
The onset of A-Fib● The atrium starts to quiver from this electrical disturbance. ● The heart rate becomes irregular.
The onset of A-Fib● The heart rate can become 120 even up above 170 beats/min. ● The SA node is no longer in control of regulating the heart rate.
The onset of A-Fib● With a rapid heart rate one can become short of breath and light headed and hypotension (low blood pressure).
A-Fib untreated● Can cause blood clots to form because blood in the atrium becomes stagnant. ● Blood from the left ventricle can shoot a clot into the brain causing a stroke (see next slide).
A -Fib untrea ted cont.● A-fib untreated can also cause heart failure.
A-Fib treatments● Cardioversion (shocking the heart)● Medications to control rate and rhythm cardizem, amiodarone, etc.● Sometimes the heart converts to regular rhythm on its own.
-Fib treatm ents cont. A● The use of anticoagulants to prevent blood clots, such as Coumadin or Pradaxa
-Fib treatm ents cont. A● If a heart rate can not be controlled by medications an ablation (burning of) SA node and placement of a pacemaker may be necessary.
The End.● This is just for general educational information.