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.

Is a VVI pacemaker single chamber?

A single-chamber pacemaker operates in VVI mode when only one lead is positioned in the ventricle; the VVI mode can also be programmed in a dual-chamber pacemaker. The VVI mode provides single-chamber inhibited pacing at the programmed pacing rate, unless inhibited by a sensed event.

What is a VVI ICD?

DDDR = dual chamber rate adaptive pacemaker; EPS = electrophysiology study; ICD = implantable cardiovertor defibrillator; LVEF = left ventricular ejection fraction; VF = ventricular fibrillation; VT = ventricular tachycardia; VVI = single chamber ventricular pacemaker.

What does vv1 mean?


Acronym Definition
VVI Single Chamber Ventricular Pacemaker
VVI Vietnam Veterans Institute (est. 1981)
VVI Velocity Vector Indicator (gaming)
VVI Vehicle Verification and Identification

What does Vvir mean?


Acronym Definition
VVIR Ventricular Rate Modulated Pacing (pacing heart failure fibrillation)
VVIR Voice and Visage of the Islamic Republic (Iranian Radio and Television)

What is a DDI pacemaker?

An implanted pacing device that senses both atrial and ventricular events but can inhibit only atrial impulses. This type of pacing is used only when atrioventricular conduction is intact. It may be suitable when frequent atrial tachyarrhythmias cause rapid ventricular rates.

What does a ventricular pacemaker do to initiate a heartbeat?

This type of pacemaker stimulates both of the lower heart chambers (the right and left ventricles) to make the heart beat more efficiently. A pacemaker is implanted to help control your heartbeat.

What does the name pacemaker mean?

A small battery-operated device that helps the heart beat in a regular rhythm. There are two parts: a generator and wires (leads). The generator is a small battery-powered unit. It produces the electrical impulses that stimulate your heart to beat. The generator may be implanted under your skin through a small incision.

What does DDD and VVI mean?

– ASVS A sense V sense Normal sinus rhythm The device senses both chambers – APVS A pace V sense Atrial rhythm abnormality The device paces the atrium, but senses the ventricle – ASVP A sense V pace AV nodal dysfunction The device senses atrial activity, and paces the ventricle – APVP A pace V pace Atrial and ventricular asynchrony. E.g.

What is VVIR pacemaker?

Ventricular stimulation

  • Ventricular sensing
  • Ventricular sensed event (outside of refractory periods) inhibits stimulation.