Acute renal dysfunction, Aortic valve injury, Bleeding, Cardiogenic shock, Cerebral vascular accident/Stroke, Death, Hemolysis, Limb ischemia, Myocardial infarction, Renal failure, Thrombocytopenia and Vascular injury In addition to the risks above, there are other WARNINGS and PRECAUTIONS associated with Impella devices. Additionally, cardiac resuscitation can cause device migration and as such, post-arrest ultrasound confirmation of position is recommended. Keywords: We have 2 nurses at the bedside for the tubing change. Patients must have some level of left ventricular function for an IABP to be effective. High-risk PCI - Impella 2.5, CP - < 6 hours (temporary) VAD for use during high-risk percutaneous coronary intervention (prevent hemodynamic instability) 2. In general, if the patient subsequently develops oliguria, tachycardia, lactate >2 mg/dL, or a cardiac index <2.0 L/min/m2 we will resume the prior level of cardiac support provided by the Impella. Train a core group of nurses and cardiovascular technologists from the catheterization laboratory for initial setup of the console, catheter preparation, and assisting with placement of the device. Review of patient care management strategies, console troubleshooting, and fluid/tubing setup has also been added to our annual VAD skills fair (Table 9). Once the imager has a nonforeshortened image of the catheter in the parasternal long-axis view, the Impella motor speed should be temporarily set to power level P2, which reduced the risk of damaging the submitral apparatus during the catheter manipulation. For this reason, we recommend a conservative approach to catheter manipulation with a the enemy of good is perfect philosophy. Device profile of the Impella 5.0 and 5.5 system for mechanical circulatory support for patients with cardiogenic shock: overview of its safety and efficacy. Additionally, a gross assessment of cannula depth can be inferred by contrasting the placement signal and LV pressure waveforms on SmartAssist capable devices (see controller alarm section.). 0000009855 00000 n If the patient tolerates the PCI procedure and hemodynamic instability does not develop, the Impella 2.5 may be removed at the end of the case while the patient is still in the catheterization laboratory. The following 3 case studies demonstrate the successful use of Impella 2.5 support during high-risk PCIs at our facility. Indications 1. To understand the hemodynamics of a patient in cardiogenic shock receiving Impella support, a pulmonary arterial catheter is recommended.5 The overall weaning strategy is to achieve adequate organ perfusion at the lowest device power setting to minimize device-related complications and to determine candidacy for device removal. If the hemolysis is severe, hemoglobinuria will be seen; if the hemolysis is sustained, acute kidney injury will occur. Brenda McCulloch is a member of the Abiomed Administrative Advisory Board. All patients with this device are observed by this clinical nurse specialist during their hospital stay. : Increased plasma-free hemoglobin levels identify hemolysis in patients with, 5. If the patients ventricular function is very poor, a positioning alarm can occur. Our typical hemodynamic targets are a mean arterial pressure of 6070 mm Hg, a right atrial pressure of 812 mm Hg, a pulmonary arterial wedge pressure <15 mm Hg, and a cardiac index >2.0 L/min/m2. The Impella 2.5 is a percutaneously placed partial circulatory assist device that is increasingly being used in high-risk coronary interventional procedures to provide hemodynamic support. Based on our experiences, we share the following recommendations. Several parameters require regular monitoring for the duration of therapy. In our facility, physicians who can place this device are those who have interventional cardiology and/or cardiac surgery privileges. E-mail: [emailprotected]; Twitter: @AlexPapolos. The patients hemodynamic status is assessed after every decrease in performance level. Ten different performance levels ranging from P0 to P9 are available (Table 5). It cannot be used in patients with documented left ventricular thrombus. Cardiogenic shock - Impella 2.5, CP, 5.0, LD - Temporary VAD for less than or equal to 4 days: 2.5, CP - Temporary VAD for less than or equal to 14 dyas: 5.0, LD Conditions mimicking inlet obstruction (continuous or diastolic suction) resulted in an increase in MIH by 2.5 times while conditions of outlet obstruction increased MIH by 6 times. The Impella 2.5 catheter (Figure 2) contains a nonpulsatile microaxial continuous flow blood pump (Figure 3) that pulls blood from the left ventricle to the ascending aorta, creating increased forward flow and increased cardiac output. The use of two Impella devices concurrently has demonstrated decreased LV filling pressures and improved cardiac output for cardiogenic shock patients, although reported data on this use is limited and future studies are required. Heparin 7000 units was administered intravenously for anticoagulation. The Impella catheter has become a common MCS device used in medical and surgical cardiac intensive care units, and as such intensivists must have a core competency with its management. Brenda McCulloch; Use of the Impella 2.5 in High-Risk Percutaneous Coronary Intervention. When the activated clotting time was higher than 250 seconds, the Impella 2.5 was advanced into position via the left common femoral artery and placed across the aortic valve into the left ventricle. Pahuja M, Hernandez-Montfort J, Whitehead EH, Kawabori M, Kapur NK. Unable to load your collection due to an error, Unable to load your delegates due to an error. Bethesda, MD 20894, Web Policies 0000004641 00000 n The motor current signal will be flattened. 2020 Jan 22;2(1):23-44. doi: 10.36628/ijhf.2019.0015. The heparinized saline is placed in a pressure bag that is inflated to 300 mm Hg. A multi-beat acquisition of the catheter should be obtained while panning through the LV cavity, to avoid catheter foreshortening and consequent incorrect assessment of catheter depth. The proximal port of this lumen is yellow. The Impella coordinator is present to assist with tubing changes as needed by the nursing staff. Even a common cold can cause your uvula to swell. When the Quick Set-Up is used, the 10% to 20% dextrose solution used to purge the motor is not heparinized. hb```b``ac`a` B@EY k2T>`(zM]us:nqO8.c,BD|s+eSd:[$spK| B^0F:TXSY&D{|!3:EOT$Z^ELkzIGX;&XY At maximum performance (P9), the pump rotates at 50000 revolutions per minute and delivers a flow rate of 2.1 to 2.6 L/min. None of the patients had hemodynamic instability develop during the procedure. SyBbhD&,V}R#Ohov]F}9v_c- Develop a nursing protocol that outlines key strategies in patient management and a specific flow sheet (Figure 10) for documentation. The purpose of this review is to comprehensively describe our strategy for managing, repositioning, and weaning the Impella catheter. It should not be used in patients with moderate to severe aortic insufficiency; it may worsen the degree of insufficiency because the aortic valve cannot close completely with the device in place. At follow-up 12 months later, the patient remained symptom-free with a normal ejection fraction of 55%. Fluoroscopic guidance in the catheterization laboratory or operating room is required. When the patient is coming off of cardiopulmonary bypass, the performance level of the Impella pump, if the pump remains in place, must be increased to provide adequate flow to the patient. The cannula portion of the catheter is built with a 30 bend (except for the Impella LD, which has a straight design). When the heart displays a question mark over it with the words "Impella Position Wrong": 1. controller can't determine catheter position. In these situations, one must weigh the risk of time-dependent device-related complications with inotrope-related increases in myocardial oxygen demands. 0000004122 00000 n The second lumen ends near the motor above the level of the aortic valve and is used to monitor aortic pressure. However, in severe cases of RV failure or when pre-capillary pulmonary hypertension is a contributing factor, right-sided MCS and pulmonary vasodilator titration may be required, respectively. If a significant color Doppler signal is observed below the valve (in the absence of significant aortic regurgitation), the device is likely too deep. Search for other works by this author on: Percutaneous left ventricular support devices, A randomized clinical trial to evaluate the safety and efficacy of a percutaneous left ventricular assist device versus intra-aortic balloon pumping for treatment of cardiogenic shock caused by myocardial infarction, Effects of left ventricular unloading by Impella Recover LP 2.5 on coronary hemodynamics, Nursing care of patients receiving intra-aortic balloon counterpulsation, Safety and feasibility of elective high-risk percutaneous coronary intervention procedures with left ventricular support of the Impella Recover LP 2.5, A prospective feasibility trial investigating the use of the Impella 2.5 system in patients undergoing high-risk percutaneous coronary intervention (the PROTECT I trial): Initial U.S. experience, Feasibility and long-term safety of elective Impella-assisted high-risk percutaneous coronary intervention: a pilot two-centre study, Use of Impella Recover LP 2.5 in elective high risk percutaneous coronary intervention [published online ahead of print September 2, 2009], Update on ventricular assist device technology, Impella: Instructions for Use for the Impella 2.5 Circulatory Support System, The coronary no-reflow phenomenon: a review of mechanisms and therapies, 2011 American Association of Critical-Care Nurses, This site uses cookies. The arterial access site must be assessed regularly for bleeding and development of a hematoma. After a family conference that included the patient, the decision was made to proceed with high-risk PCI of the LIMA graft, using the Impella 2.5 for hemodynamic support during the procedure. The Impella console powers the microaxial blood pump and monitors the functioning of the device, including the purge pressure and several other parameters. The partial thromboplastin time should be monitored every 4 to 8 hours and maintained at about 45 to 55 seconds, unless a higher partial thromboplastin time is required for some other reason. In our facility, this role is filled by the interventional cardiology clinical nurse specialist. Learn more about how the FDA-approved Impella, the world's smallest heart pump, is safe, effective and supports your heart during a procedure. This arrangement allows rapid initial setup of the console so that support can be initiated quickly. For patients who become hemodynamically unstable or who have complications during the PCI (eg, no reflow, hypotension, or lethal arrhythmias), the device can remain in place for continued partial circulatory support, and the patient is transported to the critical care setting. Staff received 1-to-1 mentoring from the Impella coordinator. Currently, the intra-aortic balloon pump (IABP) is the most commonly used device for circulatory support. If TTE imaging is difficult, fluoroscopy or TEE can also be used. The Impella mechanical circulatory support (MCS) system is a catheter-based continuous flow cardiac assist device that is widely used in the treatment of cardiogenic shock in medical and surgical cardiac intensive care units. It is used for high-risk percutaneous coronary intervention and CS. Free shipping for many products! The cannula appears as two bright echogenic, parallel lines, sometimes referred to as the railroad tracks, which ends at the inlet area. 2020 Jul;8(13):835. doi: 10.21037/atm.2020.03.152. The patients remaining hospital course was uneventful and he was discharged 2 days later taking appropriate medications for after PCI and to treat heart failure. The aortic end of the cannula houses a microaxial motor which spins an Archimedes screw impeller that draws blood through the cannula to the outlet area in the aortic root. With correct positioning and function, the placement signal and motor current are pulsatile, reflecting the dynamic pressure gradient between the aorta and LV, as well as the cyclical variation in energy required to maintain the desired motor speed over the cardiac cycle (Figure 3A). a small tube that carries blood out of the heart into a pump then blood pumped back into the aorta (LVAD) or pulmonary artery (RVAD) can be continuous flow (cf-VAD) rather than pulsatile (generally older models); cf-VADs are smaller, quieter, and durable. Serial assessment of native cardiac function and organ perfusion using clinical, hemodynamic, imaging, and laboratory data should be performed as the Impella support is weaned. 2021 Feb;19(2):151-164. doi: 10.1080/14779072.2021.1863147. P2 is the lowest performance level that can be used while the distal end of the Impella 2.5 is in the left ventricle. FOIA The structural design of each of these LV support catheters is grossly similar (Figure 2). As with all forms of MCS, device-related complications remain a major concern, the incidence of which can be mitigated by adhering to a few fundamental concepts in device management. Submitted for consideration June 2021; accepted for publication in revised form December 2021. 2022 Feb 28;19(2):115-124. doi: 10.11909/j.issn.1671-5411.2022.02.003. Device failure, although not often reported, can occur. 0000003906 00000 n Impella has been proven to be safe and may be superior to other mechanical support devices in CS. Serum level of lactate was lower in patients treated with the Impella. The size and function of the left and right ventricles as well as interventricular septal position should also be assessed, as low flow and suction alarms can be caused by over-decompression of the LV, RV failure, and/or obstructive physiology. jay panzirer wife, who ensures the base records manager role is filled, sammy the bull height,

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