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Related Concept Videos

Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

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Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
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Assessment of Ventilation I: Respiratory Rate01:20

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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:
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Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

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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...
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Factors Affecting Respiration01:24

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Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
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Other Factors Affecting Respiration Centers01:17

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Breathing is primarily an involuntary activity regulated by the brainstem respiratory centers. However, it can also be consciously controlled, allowing us to hold our breath or take deeper breaths when needed. This voluntary control is facilitated by the cerebral motor cortex, which bypasses the medullary centers to stimulate the respiratory muscles directly.
However, the ability to hold one's breath voluntarily is not limitless. When the CO2 concentration in the blood reaches a critical...
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Acute Respiratory Failure-II01:21

Acute Respiratory Failure-II

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Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
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Related Experiment Video

Updated: May 2, 2026

The Perinatal Asphyxiated Lamb Model: A Model for Newborn Resuscitation
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Factors predicting mortality in newborn ventilation.

Biswanath Basu1, Sunil K Sinha2, T Basu3

  • 1Department of Pediatrics, NRS Medical College & Hospital, Kolkata, India.

Pediatric Pulmonology
|March 13, 2014
PubMed
Summary
This summary is machine-generated.

A new scoring system accurately predicts mortality in newborns on mechanical ventilation. Key predictors include birth weight, oxygenation index, malondialdehyde levels, inotropic support, and septicemia, highlighting the role of free radical injury.

Keywords:
malondialdehyde leveloxygenation-index

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Laryngeal Mask Airway LMA Placement in a Neonatal Patient Simulator Using a Non-Inflatable Supraglottic Airway SGA
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Area of Science:

  • Neonatal Medicine
  • Pediatric Critical Care
  • Biomarkers in Neonatal Health

Background:

  • Predicting mortality in mechanically ventilated neonates is challenging.
  • Existing scoring systems may not fully capture mortality risk in this population.

Purpose of the Study:

  • To develop and validate a novel scoring system for predicting mortality in mechanically ventilated newborns.
  • To identify independent predictors of mortality in this vulnerable group.

Main Methods:

  • Prospective, multi-center study in India involving two equal cohorts of ventilated neonates.
  • Data collection included blood gas analysis, pulmonary pressures, septicemia screen, and malondialdehyde levels.
  • Multiple logistic regression analysis identified independent predictors of mortality.

Main Results:

  • Birth-weight, oxygenation-index, septicemia, malondialdehyde level, and inotropic support were significant univariate predictors.
  • A scoring system (0-20) and four mortality risk groups were developed with an Area Under the ROC Curve of 0.94.
  • This performance surpassed established scores like APACHE-III, CRIB, and PRISM.

Conclusions:

  • Birth-weight, oxygenation-index, malondialdehyde level, inotropic support, and septicemia are independent predictors of mortality in neonatal ventilation.
  • Elevated malondialdehyde levels correlate with increased mortality, suggesting a role for free radical injury.
  • The developed scoring system offers improved accuracy for mortality prediction in this patient group.