Acoustic Properties of Axial and Centrifugal Flow Left Ventricular Assist Devices and Prediction of Pump Thrombosis.

Objective: To characterize the properties of the audible tones produced by current left ventricular assist device (LVAD) pumps approved for use, and to ascertain if changes in those may be present in the setting of pump thrombosis.

Patients And Methods: From August 31, 2016, to January 16, 2020, LVAD recipients consented to have surface recordings obtained using a high-fidelity digital stethoscope. Audio data were analyzed using digital recording and editing software to produce an acoustic spectrogram by Fast Fourier transformation.

Ventricular tachycardia and preload deficiency post LVAD - The importance of integrated assessment.

Ventricular tachycardia (VT) is common in LVAD recipients, and although often well tolerated, may result in symptoms and ICD therapies, and therefore require further evaluation and treatment. However, preload deficiency may also contribute to the development of ventricular tachycardia after LVAD implantation by provoking inflow cannula related VT. In this report, three cases are described where ventricular tachycardia was evaluated by integrated assessment utilizing echo and the HeartWare HVAD console, and successfully treated by modification of LV loading conditions.

Decreased bed rest post-percutaneous coronary intervention with a 7-French arterial sheath and its effects on vascular complications.

Aims And Objectives: To compare the incidence of femoral access puncture site complications in the control group, who underwent 6 hr of bed rest, with patients in the case group, who underwent 4 hr of bed rest.

Background: The ideal bed rest length after percutaneous coronary intervention with a 7-French arterial sheath has been investigated by nursing practice. However, in this larger-sheath-size group, best practices have not been determined, and bed rest time continues to vary markedly among institutions.