Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Problem-Solving: Tuning of a Guitar String01:04

Problem-Solving: Tuning of a Guitar String

In the case of stringed instruments like the guitar, the elastic property that determines the speed of the sound produced is its linear mass density or the mass per unit length. This is simply called the linear density. If the string's linear density is constant along the string, then the linear density is simply the total mass divided by the total length.
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
Beats01:09

Beats

The study of music provides many examples of the superposition of waves and the constructive and destructive interference that occurs. Very few examples of music being performed consist of a single source playing a single frequency for an extended period of time. A single frequency of sound for an extended period might be monotonous to the point of irritation, similar to the unwanted drone of an aircraft engine or a loud fan. Music is pleasant and exciting due to mixing the changing frequencies...
Design Example01:23

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
Design Example: Vintage Mixing Console01:17

Design Example: Vintage Mixing Console

A sound engineer at a music company recently encountered a problem. The output from their newly acquired studio's vintage mixing console was too low for the requirements of modern recording equipment. To rectify this situation, the engineer decided to design an audio pre-amplifier using an operational amplifier (op-amp) to boost the signal level.
The specifications for the pre-amplifier were clear. It needed to amplify the audio signal by a factor of 10, have an input impedance above 10...
Instrument Calibration01:12

Instrument Calibration

Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Properties of Fourier Transform I01:21

Properties of Fourier Transform I

The application of Fourier Transform properties in radio broadcasting is multifaceted, enabling significant advancements in the way signals are transmitted and received. Key areas where these properties are utilized include simultaneous multi-channel transmission, audio clip speed adjustments, live broadcast delays for different time zones, audio frequency adjustments, and signal demodulation.
In radio broadcasting, multiple audio signals often need to be transmitted simultaneously. The Fourier...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Preoperative Use of Venoarterial Extracorporeal Membrane Oxygenation in Postinfarct Ventricular Septal Rupture: Insights From the Extracorporeal Life Support Organization Registry.

ASAIO journal (American Society for Artificial Internal Organs : 1992)·2026
Same author

The Clinical Impact of Concomitant Hemi-Arch Reconstruction at the time of Aortic Root Replacement.

JTCVS open·2026
Same author

No-touch versus conventional vein harvesting in coronary bypass surgery: A meta-analysis of randomized controlled trials.

JTCVS open·2026
Same author

Aortic root replacement after repaired congenital conotruncal defects: A surgical challenge.

JTCVS open·2026
Same author

Optimal strategy for aortic root replacement in patients of advanced age: Valve-sparing root replacement or Bio-Bentall?

The Journal of thoracic and cardiovascular surgery·2026
Same author

Free Versus In situ Right Internal Mammary Artery as a Conduit in Coronary Artery Bypass Surgery: A Meta-Analysis.

Interdisciplinary cardiovascular and thoracic surgery·2026
Same journal

The Heart-Brain Connection.

Cardiology clinics·2026
Same journal

Overcoming Psychological Barriers to Treatment Adherence: The Case of Antihypertensive Medication.

Cardiology clinics·2026
Same journal

Cardio-oncology Rehabilitation and Mental Health: Current Evidence and Future Perspectives.

Cardiology clinics·2026
Same journal

Cardiac Rehabilitation and Mental Health.

Cardiology clinics·2026
Same journal

Best-Practice Mental Health Interventions Following Acute Cardiovascular Events.

Cardiology clinics·2026
Same journal

Positive Psychology Interventions and Cardiovascular Health: Frequency and Duration to Sustain Cardiovascular Benefits.

Cardiology clinics·2026
See all related articles

Related Experiment Video

Updated: May 27, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Tips on tuning each device: technical pearls.

Hiroo Takayama1, Jonathan A Yang, Yoshifumi Naka

  • 1Department of Surgery, Columbia University Medical Center, New York, NY 10032, USA.

Cardiology Clinics
|November 9, 2011
PubMed
Summary
This summary is machine-generated.

This study details the technical challenges and potential adverse events associated with implanting various left ventricular assist devices (LVADs). Understanding these specific surgical pitfalls is crucial for improving patient outcomes with mechanical circulatory support.

More Related Videos

Studying Cavitation Enhanced Therapy
07:36

Studying Cavitation Enhanced Therapy

Published on: April 9, 2021

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds
10:13

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds

Published on: November 26, 2012

Related Experiment Videos

Last Updated: May 27, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Studying Cavitation Enhanced Therapy
07:36

Studying Cavitation Enhanced Therapy

Published on: April 9, 2021

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds
10:13

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds

Published on: November 26, 2012

Area of Science:

  • Cardiovascular Surgery
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Left ventricular assist devices (LVADs) are critical for managing advanced heart failure.
  • While LVAD implantation techniques share similarities, device-specific nuances exist.

Purpose of the Study:

  • To delineate the technical pitfalls associated with LVAD implantation.
  • To describe implantation techniques specific to HeartMate XVE, HeartMate II, HeartWare, and DuraHeart devices.

Main Methods:

  • Review of implantation techniques for major LVADs.
  • Analysis of concomitant surgical procedures related to LVADs.
  • Identification of device-specific surgical challenges.

Main Results:

  • Subtle technical variations in LVAD implantation can lead to severe adverse events.
  • Each LVAD model (HeartMate XVE, HeartMate II, HeartWare, DuraHeart) presents unique surgical considerations.
  • Concomitant procedures introduce additional technical complexities.

Conclusions:

  • Awareness of device-specific technical perils is essential for LVAD surgeons.
  • Minimizing surgical complications requires meticulous attention to implantation details.
  • Improved surgical technique can enhance the safety and efficacy of LVAD therapy.