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Related Concept Videos

Ventilatory Modes01:14

Ventilatory Modes

Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
Pulse rhythm01:30

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation (NIPPV)
Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
Continuous Renal Replacement Therapy01:30

Continuous Renal Replacement Therapy

Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...

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Related Experiment Video

Updated: May 19, 2026

Use of Two Intracorporeal Ventricular Assist Devices As a Total Artificial Heart
08:49

Use of Two Intracorporeal Ventricular Assist Devices As a Total Artificial Heart

Published on: May 11, 2018

Pulsatile vs. continuous flow in ventricular assist device therapy.

Gabriel Loor1, Gonzalo Gonzalez-Stawinski

  • 1Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, OH, USA.

Best Practice & Research. Clinical Anaesthesiology
|August 23, 2012
PubMed
Summary
This summary is machine-generated.

Left ventricular assist devices (LVADs) offer improved survival for end-stage heart failure patients. Continuous-flow LVADs are smaller and linked to less morbidity, though they may increase bleeding risk compared to pulsatile devices.

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Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
06:10

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock

Published on: June 12, 2021

Related Experiment Videos

Last Updated: May 19, 2026

Use of Two Intracorporeal Ventricular Assist Devices As a Total Artificial Heart
08:49

Use of Two Intracorporeal Ventricular Assist Devices As a Total Artificial Heart

Published on: May 11, 2018

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
06:10

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock

Published on: June 12, 2021

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Devices

Background:

  • End-stage heart failure necessitates advanced treatment options.
  • Left ventricular assist devices (LVADs) are crucial for improving patient survival.
  • Both continuous-flow and pulsatile LVADs exist, impacting patient physiology differently.

Purpose of the Study:

  • To compare the physiological effects and clinical outcomes of continuous-flow versus pulsatile LVADs.
  • To evaluate the impact of different LVAD types on survival and morbidity in heart failure patients.

Main Methods:

  • Comparative analysis of physiological effects between continuous-flow and pulsatile LVADs.
  • Review of clinical data on survival rates and adverse events, focusing on bleeding.
  • Assessment of device size and overall morbidity associated with each type.

Main Results:

  • Both continuous-flow and pulsatile LVADs significantly increase survival compared to medical management.
  • Continuous-flow devices are generally smaller and associated with less overall morbidity.
  • Bleeding events appear to be more common with continuous-flow devices in some studies.

Conclusions:

  • LVADs represent a vital therapeutic strategy for end-stage heart failure.
  • Continuous-flow LVADs offer advantages in size and reduced morbidity, but bleeding risk requires consideration.
  • The choice between device types should weigh survival benefits against potential complications.