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Related Concept Videos

Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

Assessment of Ventilation II: Respiratory Depth and Rhythm

Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Tracheostomy Decannulation01:21

Tracheostomy Decannulation

Tracheostomy decannulation is a significant milestone in the liberation of mechanically ventilated patients. Despite its importance, there is no universally accepted protocol for this procedure. This demands an evidence-based, individualized approach.
Description of the Procedure
Decannulation refers to the permanent removal of the tracheostomy tube, signaling the resolution of the condition that initially necessitated the tracheostomy. The process requires a well-coordinated interplay between...
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...
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)
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...

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Related Experiment Video

Updated: Jul 5, 2026

Mechanical Ventilation Boot Camp Curriculum
07:36

Mechanical Ventilation Boot Camp Curriculum

Published on: March 12, 2018

Mechanical ventilation with or without 7-day circuit changes. A randomized controlled trial

M H Kollef1, S D Shapiro, V J Fraser

  • 1Pulmonary and Critical Care Division, Washington University School of Medicine, St. Louis, MO 63110, USA.

Annals of Internal Medicine
|August 1, 1995
PubMed
Summary
This summary is machine-generated.

Eliminating routine ventilator circuit changes in prolonged mechanical ventilation patients does not increase pneumonia rates. This practice significantly reduces healthcare costs without compromising patient safety.

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Area of Science:

  • Critical Care Medicine
  • Infectious Disease Prevention
  • Healthcare Economics

Background:

  • Nosocomial pneumonia is a significant complication in patients requiring prolonged mechanical ventilation.
  • Routine changes of ventilator circuits are a common but costly practice aimed at preventing such infections.

Purpose of the Study:

  • To evaluate if foregoing routine ventilator circuit changes impacts the incidence of nosocomial pneumonia in critically ill patients.
  • To assess the economic implications of altering ventilator circuit change protocols.

Main Methods:

  • A randomized controlled trial was conducted in intensive care units involving 300 patients needing mechanical ventilation for over 5 days.
  • Patients were randomized to either no routine circuit changes or changes every 7 days.
  • The primary outcome was ventilator-associated pneumonia incidence, with secondary outcomes including mortality and length of stay.

Main Results:

  • The incidence of ventilator-associated pneumonia was similar between groups (24.5% vs. 28.8%), with no statistically significant difference (RR, 0.85; 95% CI, 0.55 to 1.17).
  • No significant differences were observed in hospital mortality, ICU mortality, or mortality attributed to ventilator-associated pneumonia.
  • The group with no routine changes incurred substantially lower costs ($330 vs. $7410) due to fewer circuit changes.

Conclusions:

  • Eliminating routine ventilator circuit changes is a safe strategy for patients on prolonged mechanical ventilation.
  • This practice can lead to significant reductions in healthcare expenditures without adversely affecting patient outcomes or increasing pneumonia risk.