Set the pace.
A battery powered device that delivers an electrical current to the heart to stimulate depolarization.
What is Pacemaker?
The successful conduction of an artificial pacemaker's impulse through the myocardium, resulting in depolarization.
What is Capture?
The extent to which an artificial pacemaker recognizes intrinsic cardiac electrical activity.
What is Sensitivity?
A programmable device that can deliver a range of therapies.
What is ICD (Implantable Cardioverter-Defibrillators)?
Implies presence of dilation or hypertrophy or both.
What is Enlargement?
The rate in which the pacemaker's pulse generator initiates impulses when no intrinsic activity is detected.
What is Base Rate?
An increase in the thickness of a heart chamber caused by chronic pressure overload.
What is Hypertrophy?
The minimum amount of voltage needed to obtain consistent capture.
What is Threshold?
A delay or interruption in impulse conduction from the atria to the ventricles?
What is AV Block?
A pacemaker malfunction that occurs when the pacemaker fails to deliver an electrical stimulus at its programmed time.
What is Failure to Pace?
Pacemaker that discharges only when the patient's hearts rate drops below the preset rate for the pacemaker. It is also referred to as synchronous or noncompetitive pacemaker.
What is Demand Pacemaker?
A pacemaker malfunction that occurs when the artificial pacemaker stimulus is unable to depolarize the myocardium.
What is Failure to Capture?
Current flow in the direction opposite to normal.
What is Indeterminate Axis Deviation?
A disruption in impulse conduction from the Bundle of His through the right or left bundle branch to the Purkinje fibers.
What is Bundle Branch Block (BBB)?
Time measured between a sensed cardiac event and the next pacemaker output.
What is Escape Interval?
Pacemaker that continuously discharges at a preset rate regardless of patients intrinsic activity.
What is Fixed-Rate Pacemaker?
An increase in diameter of a chamber of the heart caused by volume overload.
What is Dilation?
Direction, or angle in degrees, in which the main vector of depolarization is pointed.
What is Electrical Axis?
What is Paced Interval?
A pacemaker malfunction that results from inappropriate sensing of extraneous electrical signals.
What is Oversensing?
Pacemaker that stimulates the atrium and ventricle.
What is Dual-Chamber Pacemaker?
A pacemaker malfunction that occurs when the artificial pacemaker fails to recognize spontaneous myocardial depolarization.
What is Undersensing?
What is Vector?
When one or more, but not all, sinus impulses are blocked from reaching the ventricles.
What is Second-degree AV Block?
Pacemaker response in which the output pulse is suppressed when an intrinsic event is sensed.
What is Inhibition?