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Related Concept Videos

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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.
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An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
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Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
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Related Experiment Video

Updated: May 5, 2026

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
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Gas explosion during diathermy gastrotomy.

F S Joyce1, T N Rasmussen

  • 1Department of Surgery C, Rigshospitalet, University of Copenhagen, Denmark.

Gastroenterology
|February 1, 1989
PubMed
Summary

Diathermy use during gastrotomy can cause stomach rupture from gas explosions in obstructed patients. Avoid diathermy when entering the gastrointestinal tract in these cases to prevent surgical complications.

Area of Science:

  • Gastroenterology
  • Surgical Safety
  • Medical Device Complications

Background:

  • Intestinal ischemia can lead to obstruction, causing gastric and jejunal dilatation.
  • Bacterial proliferation in obstructed gastrointestinal tracts can produce explosive gases like hydrogen and methane.

Observation:

  • A patient with intestinal ischemia experienced stomach rupture during gastrotomy.
  • The rupture was attributed to a diathermy-elicited gas explosion.

Findings:

  • Combustible gases can accumulate in obstructed stomachs and small bowels.
  • Diathermy devices can ignite these gases, leading to explosions and rupture.

Implications:

  • The diathermy knife should be avoided when entering the gastrointestinal lumen in cases of obstruction.

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  • This finding highlights a critical safety concern in gastrointestinal surgery.
  • Enhanced awareness and procedural modifications are needed to prevent diathermy-related complications.