Related Experiment Video
Updated: Mar 11, 2026

Induction of Cerebral Arterial Gas Embolism in Rat
Published on: October 18, 2024
[Toxic encephalopathy caused by liquefied gas exposure: Report of one case]
Abstract:
Liquefied hydrocarbon gas, such as propane is considered safe. However there are reports that voluntary exposure to liquefied gas at least could originate hallucinatory states. We report a 20 years old woman who was found in a coma with extensor muscle hypertonia, brisk tendon reflexes and extensor plantar (Babinski) responses after being exposed to propane gas. The brain magnetic resonance imaging (MRI) showed lesions in both hippocampi and white matter in the oval center. The patient had a normal oxygen saturation of 98%, a carboxyhemoglobin of 1.6% and a metabolic acidosis with a pH of 7.01 with an anion gap of 16 mEq/l. This pattern suggested that it was a consequence of the intermediary metabolism of isopropanol. The recovery of the patient was slow and four months later she still had lesions on MRI and limitations in her cognitive sphere, memory and executive functions. Thus, liquefied gas exposure can cause a toxic encephalopathy with a persistent damage of the central nervous system.
More Related Videos
Related Concept Videos
Toxic Reactions: Overview
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Types of Toxins
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Toxidromes: Clinical Features
Pharmaceutical Poisoning: Potential Scenarios
Local Anesthetics: Adverse Effects
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
Pneumothorax-I
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.

