What do numbers on LVAD mean?
Lower values reflect less native heart function and greater reliance on the pump, while higher values reflect more native heart function and less support by the pump. • Power is the amount of wattage (W) the device needs to maintain speed and. flow. The normal range is 4 to 7 W. The 4 Ps of the LVAD.
What is VAD used for?
A ventricular assist device (VAD) — also known as a mechanical circulatory support device — is a device that helps pump blood from the lower chambers of your heart (ventricles) to the rest of your body.
What is a VAD functional?
A ventricular assist device, or VAD, is a mechanical pump used to support heart function and blood flow in people with weak or failing hearts. The device is implanted in the body and pumps blood from the heart’s lower chambers to the rest of the body.
What is a normal blood pressure for an LVAD patient?
Some recent guidelines on the management of LVAD patients recommend the following: The goal is to maintain the mean arterial BP in the range of 70 to 80 mm Hg. It should not exceed 90 mm Hg.
What does low flow on LVAD mean?
“Low- flow alarms” on the VAD may be related to reduced preload from RV failure, but also may be secondary to hypovolemia or inflow cannula obstruction (less common, but a known complication). Laboratory markers of end organ dysfunction can aid in the diagnosis of RV failure.
What does a high PI mean LVAD?
• The Pulsatility Index (PI) is a measurement of the flow pulse through the pump. (coming from the heart) • During LV filling, increase in pressure causes an increase in pump flow (higher PI. indicates better LV function)
What is the most common VAD?
The LVAD is the most common type of VAD. It helps the left ventricle pump blood to the aorta. The aorta is the main artery that carries oxygen-rich blood from your heart to your body.
How do you assess a VAD functional?
Check for a functioning VAD: These devices are usually implanted below the heart in the abdominal cavity area. Use a stethoscope to listen for constant humming or whirling sound. This sound confirms the VAD is functioning.
What is the normal MAP for LVAD patient?
A normal MAP is 60-90 mm Hg. If this is not corrected quickly your patient is at risk for right ventricular failure and death. With the assistance of your LVAD team you perform procedural sedation and defibrillate your patient with conversion to sinus rhythm.