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Updated: Aug 1, 2026

A Novel Rescue Technique for Difficult Intubation and Difficult Ventilation
Published on: January 18, 2011
Use of modified rapid sequence tracheal intubation in pediatric patients
Claude Abdallah1, Raafat Hannallah1
1Division of Anesthesiology, Children's National Medical Center, NW, Washington D.C. 20010 - 2970, USA.
Background:
Rapid sequence intubation (RSI) has been an established practice, but is not without risks to patient. In different situations, a modification of the standard RSI technique may be more appropriate. The definition of a modified rapid sequence intubation (MRSI) is not well-documented. The purpose of this survey was to determine the working definition of MRSI as well as the modality of its use.
Materials And Methods:
This descriptive study consisted of a survey of pediatric anesthesiologists and included basic questions related to the anesthesiologist's experience, practice setting and use of MRSI. Responses were compiled and analyzed to identify the working definition, technique, perceived indications/complications as well as hands-on performance of tracheal intubation during use of MRSI in children.
Results:
The mean ± SD years in practice of the 228 respondents were 14.9 ± 8.16 years, with pediatric patients comprising 77 ± 33% of their practice. 76.8% completed a fellowship in pediatric anesthesia. 60% of the respondents' practice setting was at a Children's Hospital. Different respondents agreed with different techniques of MRSI with the majority (65%) defining a MRSI as equivalent to a RSI, but with mask ventilation. The major indication of use of a MRSI was a concern about apnea time tolerance with traditional RSI (74%).
Conclusion:
Technique of a MRSI varies among pediatric care providers.
Insights
Pediatric anesthesiologists have varied definitions and techniques for modified rapid sequence intubation (MRSI). The primary reason for using MRSI is concern over apnea time tolerance during traditional rapid sequence intubation (RSI).
Area of Science:
- Pediatric Anesthesiology
- Airway Management
Background:
- Rapid sequence intubation (RSI) is standard but carries risks.
- Modified rapid sequence intubation (MRSI) may be more appropriate in certain situations.
- A clear definition and understanding of MRSI are lacking.
Purpose of the Study:
- To determine the working definition of MRSI.
- To understand the current practices and modalities of MRSI use.
Main Methods:
- A descriptive survey was conducted among pediatric anesthesiologists.
- Questions covered experience, practice setting, and MRSI utilization.
- Responses were analyzed to define MRSI, its techniques, indications, and complications.
Main Results:
- 228 pediatric anesthesiologists responded, with an average of 14.9 years in practice.
- 65% equated MRSI to RSI with mask ventilation.
- The main indication for MRSI was concern about apnea time tolerance (74%).
Conclusions:
- The technique for modified rapid sequence intubation (MRSI) is not standardized among pediatric providers.
- Variability exists in the definition and application of MRSI in pediatric anesthesia.
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