What does Vvir mean?
VVIR
| Acronym | Definition |
|---|---|
| VVIR | Ventricular Rate Modulated Pacing (pacing heart failure fibrillation) |
| VVIR | Voice and Visage of the Islamic Republic (Iranian Radio and Television) |
What does VVI stand for?
VVI
| Acronym | Definition |
|---|---|
| VVI | Single Chamber Ventricular Pacemaker |
| VVI | Vietnam Veterans Institute (est. 1981) |
| VVI | Velocity Vector Indicator (gaming) |
| VVI | Vehicle Verification and Identification |
What is a VDD pacemaker?
VDD: The pacemaker senses atrial and ventricular events, but can only pace the ventricle. This type of pacemaker is used in patients with a reliable sinus node, but with an AV-block. DDD: The pacemaker records both atrial and ventricular rates and can pace either chamber when needed.
What is a multiple lead pacemaker?
Dual-chamber pacemakers have two leads, placed in the right atrium and right ventricle. They act synchronously when a slow natural heart rate is detected to mimic the sequential physiological contraction of the atria and ventricles. Single-chamber pacemakers may be atrial or ventricular.
What is the name of the heart’s pacemaker?
The sinus node is sometimes called the heart’s “natural pacemaker.” Each time the sinus node generates a new electrical impulse; that impulse spreads out through the heart’s upper chambers, called the right atrium and the left atrium (figure 2).
What does VVI mean pacemaker?
VVI(R) is ventricular demand pacing. The ventricle is paced, sensed, and the pulse generator inhibits pacing output in response to a sensed ventricular event. This mode of pacing prevents ventricular bradycardia and is primarily indicated in patients with atrial fibrillation with a slow ventricular response.
Where are the leads located in a biventricular pacemaker?
The CRT device (biventricular pacemaker) has 2 or 3 leads that are positioned in the: Right atrium; Right ventricle; Left ventricle (via the coronary sinus vein) Electrical system of the heart. The atria and ventricles work together, alternately contracting and relaxing to pump blood through the heart.
What are the other components of a pacemaker?
The other components of the pacemaker system are the leads. Leads are thin, flexible, insulated wires that conduct electrical impulses from the pacemaker generator to the heart and also relay electrical signals from the heart back to the generator.
What happens during the lead function test for a pacemaker?
This lead function test is called “pacing.” Small amounts of energy are delivered through the leads into the heart muscle. This energy causes the heart to contract. You will be asleep for several minutes during the lead function test.
What is the NBG code for pacemaker nomenclature?
The pacemaker nomenclature established by the North American Society of Pacing and Electrophysiology (NASPE) and the British Pacing and Electrophysiology Group (BPEG) is designated as NBG code for pacing nomenclature 1 .