Related Experiment Video
Updated: May 17, 2026
08:26
The Rigid Tube as an Alternative in Controlling the Problematic Airway
Published on: June 6, 2020
True knot in Ryles tube: a case report
S K Dubey1, V Mahendru, S Sadhu
1Department of Surgery, Rabindranath Tagore International Institute of Cardiac Sciences, 124 Mukundapur, Kolkata, 700 099 India.
The Indian Journal of Surgery
|November 8, 2012
Summary
Ryles tube insertion, a common procedure, can lead to rare but severe complications. This report details an unusual case of a true knot forming in a Ryles tube, highlighting potential risks during blind insertion.
Area of Science:
- Medical Procedures
- Gastroenterology
- Patient Safety
Background:
- Ryles tube insertion is a routine medical procedure.
- Minor complications such as nasal or oral trauma can occur.
- Blind insertion carries risks of severe complications, including tracheal or cranial entry.
Purpose of the Study:
- To report a rare complication of Ryles tube insertion.
- To highlight the potential for unexpected issues during the procedure.
- To increase awareness of Ryles tube-related risks.
Main Methods:
- A case of Ryles tube insertion was reviewed.
- The specific complication encountered was identified and documented.
Main Results:
- While minor complications are common, severe events like tracheal or intravascular insertion have been reported.
- A true knot in the Ryles tube, a highly infrequent occurrence, was observed.
Conclusions:
- Ryles tube insertion, though common, necessitates vigilance due to potential rare but serious complications.
- The occurrence of a true knot underscores the need for careful technique and monitoring during Ryles tube placement.
Related Concept Videos
01:23RNA Structure
Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
01:28Tracheostomy: Procedure and Tubes
A tracheostomy is a surgical procedure that creates an artificial opening into the trachea, typically at the second or third cartilaginous ring level. This opening allows the insertion of a tracheostomy tube, which can replace an endotracheal tube, provide mechanical ventilation, bypass an upper airway obstruction, or remove accumulated tracheobronchial secretions.
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
01:23Steady, Laminar Flow in Circular Tubes
Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...