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Related Concept Videos

Anatomical Positions01:11

Anatomical Positions

In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Acute Respiratory Failure-III01:30

Acute Respiratory Failure-III

Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without causing...
Pneumothorax-I01:26

Pneumothorax-I

A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Acute Respiratory Failure-II01:21

Acute Respiratory Failure-II

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:
Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
Pneumothorax II: Pathophysiology01:08

Pneumothorax II: Pathophysiology

Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...

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Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
14:09

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance

Published on: March 21, 2013

[Positional asphyxia--death in a head-down position after falling down stairs].

Elke Doberentz1, Burkhard Madea

  • 1Institut für Rechtsmedizin der Rheinischen Friedrich-Wilhelms-Universität, Bonn.

Archiv Fur Kriminologie
|November 10, 2012
PubMed
Summary
This summary is machine-generated.

A man died in a head-down position after falling down stairs due to alcohol intoxication. Cervical spine trauma prevented him from freeing himself, leading to a fatal outcome.

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Area of Science:

  • Forensic Pathology
  • Toxicology

Context:

  • Unusual body positions at death scenes necessitate detailed forensic investigation.
  • A case report detailing a fatal fall down stairs resulting in a unique body position.

Purpose:

  • To report and analyze a death occurring in a head-down position at the bottom of a staircase.
  • To elucidate the contributing factors to the unusual fatal outcome.

Summary:

  • A 64-year-old man was found deceased in a head-down position, wedged between a stair step and a door, after a fall.
  • Autopsy revealed craniofacial injuries, a cervical spine fracture, and significant cerebral and pulmonary edema.
  • High blood alcohol concentration (2.06 per mil) was identified as a major contributing factor to the fall and inability to self-rescue.

Impact:

  • Highlights the critical role of alcohol intoxication in fall-related fatalities.
  • Underscores the importance of considering positional asphyxia in unusual death scenarios.
  • Provides insights into the biomechanics of falls and entrapment in confined spaces.