Impella
security alert, risk of optical sensor damage when shockwave is used.
In
the recent years, intravascular lithotripsy has emerged as a new technique for
coronary calcified plaque modification.
It
generates circumferential sonic pressure waves to fracture both surface and
deep calcifications in the vessel wall, while limiting injury to the soft
tissues.
In
september 2024 Abiomed issued a security alert regarding
the Impella support when coronary Shockwave is used for percutaneous coronary
intervention.
The
company has identified a risk of optical sensor damage when used concurrently
in close proximity with Shockwave Coronary IVL Catheter.
This
alert affects the Impella CP and Impella 5.5 devices.
More info in the following video:
Fig: Shockwave Coronary IVL catheter.
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Impella physics and physiology. How does Impella operates? What is Impella?
Impella device is a heart pump.
This is a summary; more information is available in our YouTube video.
1. This device is at its core, it's nothing more than a propeller.
Its design creates suction at one end and ejection at the other.
2. Impella device is a microaxial pump. So, the flow it generates follows the principles of such machines
3.
Impella catheter is an axial pump and the primary factor determining
flow and current in the same patient is pressure difference.
4.
The axial pump mechanism of the Impella is not completely isolated from
the bloodstream. This would result in some blood flow entering the
system
5. Pressure measurement.
The device can determine pressure in real time using optical fiber and laser.
6.
The system can estimate the left ventricular pressure and display a
real-time curve, as well as estimate the left ventricular end-diastolic
pressure.
7. The Impella software can infer, based on an initial
measurement, the evolution over the following hours of total cardiac
output, native output, and cardiac power output.
Tags:
Impella, Tutorial, Guide, Inlet, Outlet, Current, Flow, Impeller,
Pressure gradient, Purge system, Optical pressure sensor, Laser,
Smartassist, Impella management, design, how does impella work, what is the power of impella pump, how does impella operates? How does impella work? What is impella?
CICU CHALLENGE 002: SYSTOLIC AORTIC REGURGITATION DURING VENOARTERIAL ECMO SUPPORT.
Male 55yo, familial DCM, with ICD. Admitted to ER with arrhytmic storm and shock. #ECMO iniciated. 3h later, arterial line without pulsatility. TOE performed.
