What is the Pulsatility Index? | 合法醫療器材資訊網

2021年6月9日—Whentheleftventriclecontracts,theincreaseinventricularpressurecausesanincreaseinpumpflowduringsystole.IntheHeartmateIIILVAD, ...

PI values typically range from 1 to 10. The magnitude of the PI is related to the amount of contractility provided by the native heart as well as the preload entering the LVAD. Higher values represent more ventricular filling and contractility (the LVAD is thus providing less support to the left ventricle). Lower values indicate lower filling pressures and lower contractility (the LVAD is providing greater support and unloading the left ventricle).

The PI should be relatively stable under resting conditions. A drop in PI is either secondary to a decrease in circulating blood volume2 or a marked decrease in native LV contractility3. Given that folks with LVADs have relatively poor contractility (hence the LVAD), it is far more common for a PI drop to be a marker of hypovolemia. This should prompt evaluation of intravascular volume and possible bleeding given the need for anticoagulation in ...

HeartMate III IFU.book | 合法醫療器材資訊網

HeartMate 3 Left Ventricular Assist System Instructions for Use. Pulsatility Index (PI). When the left ventricle contracts, the increase in ventricular pressure causes ... Read More

Left Ventricular Assist Device | 合法醫療器材資訊網

Describe the Thoratec Heartmate 2 and Heartmate 3 systems ... slide 22. • The Pulsatility Index (PI) is a measurement of the flow pulse through the pump. Read More

Post-op LVAD Management | 合法醫療器材資訊網

VAD Parameters. • Speed. • Power. • Flow. • Pulsatility. 17 ... Heartmate 2/3 -> “Pulsatility Index” (PI). • Magnitude of the pulsatility is measured and averaged ... Read More

What is the Pulsatility Index? | 合法醫療器材資訊網

2021年6月9日 — When the left ventricle contracts, the increase in ventricular pressure causes an increase in pump flow during systole. In the Heartmate III LVAD, ... Read More

CCAS E | 合法醫療器材資訊網

由 P Motta 著作 — The HeartMate 3 (HM3) (Abbott Cardiac Arrhythmias and Heart Failure, ... flow, pump speed, pulsatility index (abbreviated on screen as pulse index), and pump ... Read More

HeartMate 3 | 合法醫療器材資訊網

由 WE Stansfield 著作 · 2016 · 被引用 7 次 — The HeartMate II and HVAD both identify changes in power (and corresponding flow) during systole and diastole using either a pulsatility index or a flow waveform. Read More

HeartMate 3—a “Step” in the right direction | 合法醫療器材資訊網

由 J Alvarez 著作 · 2017 · 被引用 5 次 — The HeartMate II and HVAD both identify changes in power (and corresponding flow) during systole and diastole using a pulsatility index. This index reflects ... Read More

Why pulsatility still matters | 合法醫療器材資訊網

由 D Barić 著作 · 2014 · 被引用 31 次 — Pulsatility is usually described by arterial pulse pressure and pulsatility index. ... of the magnetically levitated rotor of the continuous-flow HeartMate III (Thoratec, ... Read More

HeartMate 3 LVAD | 合法醫療器材資訊網

The HeartMate 3 LVAD with Full MagLev Flow Technology is used for advanced ... shear stress3; Intrinsic pulsatility to reduce stasis and minimize thrombus3,4. Read More

left ventricular assist device | 合法醫療器材資訊網

由 H Martonik 著作 — The HeartMate II® by Thoratec is the only ... 3. State possible complications from an LVAD. The author and planners of this CNE activity have disclosed no ... Pulse index (PI) is a measurement of flow through the pump and is deter- mine Read More

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