How does HeartMate II work?
HeartMate II is designed to take over the pumping function of the patient’s left ventricle. The device is placed just below the diaphragm in the abdomen. It is attached to the left ventricle, and the aorta, the main artery that carries oxygenated blood from the left ventricle to the entire body.
What is the HeartMate II?
The HeartMate II™ Left Ventricular Assist Device (LVAD) provides short or long-term circulatory support for intermediate-to-advanced heart failure patients. This small, quiet pump features a simple design — with only one moving part — and can provide blood flow equivalent to that of a healthy heart.
How long do HeartMate batteries last?
36 months
If stored and used within recommended guidelines, HeartMate 14 volt Li-Ion batteries should be usable for approximately 360 use/charge cycles or for 36 months from the date of manufacture, whichever comes first. After 360 cycles/36 months, battery performance cannot be guaranteed and batteries should be replaced.
Is HeartMate 2 pulsatile?
The HeartMate II® is a high-speed, axial flow, rotary blood pump. As an axial flow device, the HeartMate II® produces no pulsatile action. Weighing 12 ounces (about 375 grams) and measuring about 1.5 inches (4 cm) in diameter and 2.5 inches (6 cm) long, it is significantly smaller than other currently approved devices.
Can you take a blood pressure with an LVAD?
Since LVAD patients do not typically have palpable peripheral pulses and blood pressures that can be measured by automated cuffs, first use US to get your patient’s MAP. Attach a manual BP cuff to your patient’s arm, inflate > 120 mm Hg, then slowly deflate it while having the Doppler US probe over the brachial artery.
How many LVADs have been implanted?
Over this time-period, 16,194 LVADs have been implanted and the proportion of patients fitting INTERMACS profiles 1 through 7 has remained about the same each year as shown in Table 1.
Can you do CPR on a patient with a LVAD?
The use of chest compression on patients with LVAD remains controversial. It is generally contraindicated because of the risk of LVAD dislodgement or regurgitation (from the aorta to the left ventricle) may occur. In one case report, the percutaneously implanted aortic valve was destroyed due to prolonged CPR.
What happens if an LVAD battery dies?
If the battery power is low, the batteries need to be replaced immediately. Whatever you do, don’t disconnect both batteries at once. If the controller is disconnected from both batteries at the same time, the LVAD will lose power and stop working, so the batteries must be replaced one at a time.
What does PI mean on 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 life expectancy with LVAD?
A patient may stay alive for 5 and a half years with LVAD. As per research, 80–85% of patients are alive a year after having an LVAD placed and 70–75% of patients are alive for 2 years with an LVAD. Usually, patients without LVAD have a life expectancy of 12 months or less.
How many patients have been treated with HeartMate II?
Additionally, HeartMate II LVAD is backed by more than 10 years of clinical experience. 2 To date, more than 27,000 heart failure patients have received the HeartMate II LVAD. 1 Many have passed the 5-year milestone on therapy, with some still on therapy after 10-plus years 1.
Which is better HeartMate 2 or HeartMate 3?
Patients who received the HeartMate 3 experienced fewer hospitalizations and, on average, spent 8.3 fewer days in the hospital per year than those who received the HeartMate II.
What are the features of the HeartMate II LVAD?
The HeartMate II LVAD comes with a lightweight, pocket-sized controller that interfaces with the implanted pump. Its features are designed for safety: *Please reference the HeartMate II LVAS Instructions for Use for additional information.
What is the purpose of Abbott HeartMate II?
Abbott – HeartMate II™. The HeartMate II™ is Abbott’s first-line intermediate-to-chronic left ventricular assist device. Designed to dramatically improve survival and quality of life, the HeartMate II™ was developed with the goal of providing circulatory support for a broad range of advanced heart failure patients.