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Related Concept Videos

Assessment of Ventilation I: Respiratory Rate01:20

Assessment of Ventilation I: Respiratory Rate

Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
Respiratory Volumes01:15

Respiratory Volumes

Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
Assessment of Respiration01:23

Assessment of Respiration

The respiratory system's basic structures and primary functions lay the foundation for nurses' comprehensive respiratory assessments. This assessment includes subjective and objective data to gauge the patient's respiratory health.
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like asthma or COPD,...
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:
Pulmonary Ventilation: Inhalation01:24

Pulmonary Ventilation: Inhalation

Pulmonary ventilation is a vital process that ensures the exchange of oxygen and carbon dioxide in the lungs. It refers to the movement of air into and out of the lungs, enabling the body to obtain oxygen and remove waste carbon dioxide. In this article, we will explore the intricacies of pulmonary ventilation, including its underlying principles, mechanisms, and the interplay of pressures within the respiratory system.
Boyle's law becomes particularly pertinent when examining respiratory...
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: Jun 26, 2026

Ex Vivo Porcine Experimental Model for Studying and Teaching Lung Mechanics
12:09

Ex Vivo Porcine Experimental Model for Studying and Teaching Lung Mechanics

Published on: April 19, 2024

One lung ventilation: prospective from an interested observer.

E Cohen1

  • 1Department of Anesthesia, Mount Sinai Medical Center, New York 10029, USA.

Minerva Anestesiologica
|July 2, 1999
PubMed
Summary
This summary is machine-generated.

Video-assisted thoracoscopy (VAT) uses one lung ventilation (OLV) for minimally invasive surgery. Novel bronchial blockers and strategies like inhaled nitric oxide (NO) improve oxygenation during OLV.

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Area of Science:

  • Thoracic Surgery
  • Anesthesiology
  • Minimally Invasive Procedures

Background:

  • Advancements in video endoscopic surgical equipment have increased the use of video-assisted thoracoscopy (VAT).
  • Many VAT procedures necessitate one lung ventilation (OLV), requiring specific techniques for lung collapse.
  • Maintaining adequate oxygenation during OLV remains a critical challenge in thoracic surgery.

Purpose of the Study:

  • To review advancements in achieving bronchial blockade for one lung ventilation (OLV) during video-assisted thoracoscopy (VAT).
  • To explore novel methods for improving oxygenation during OLV.
  • To discuss future concepts for modulating lung circulation to enhance gas exchange in OLV.

Main Methods:

  • Review of current techniques for bronchial blockade, including the use of univent tubes and modified bronchial blockers.
  • Discussion of strategies to maintain oxygenation during OLV, such as inhaled nitric oxide (NO) and intravenous Almitrine.
  • Exploration of the combined effects of NO and Almitrine on hypoxic pulmonary vasoconstriction (HPV) and gas exchange.

Main Results:

  • The univent tube offers a novel approach to bronchial blockade, simplifying procedures by avoiding the need to change double-lumen tubes.
  • Combining inhaled nitric oxide (NO) with intravenous Almitrine demonstrates additive effects on improving gas exchange during OLV.
  • This combination maximizes HPV in the non-dependent lung and dilates the dependent lung, significantly reducing intrapulmonary shunt.

Conclusions:

  • Novel bronchial blockade techniques and strategies for modulating lung circulation are crucial for optimizing outcomes in VAT procedures requiring OLV.
  • The combination of inhaled NO and Almitrine presents a promising approach to enhance oxygenation and minimize shunt during OLV.
  • Further research into lung circulation modulation could lead to improved patient management and reduced complications in thoracic surgery.