The ELSO Maastricht Treaty for ECLS Nomenclature: abbreviations for cannulation configuration in extracorporeal life support - a position paper of the Extracorporeal Life Support Organization

Lars Mikael Broman*, Fabio Silvio Taccone, Roberto Lorusso, Maximilian Valentin Malfertheiner, Federico Pappalardo, Matteo Di Nardo, Mirko Belliato, Melania M. Bembea, Ryan P. Barbaro, Rodrigo Diaz, Lorenzo Grazioli, Vincent Pellegrino, Malaika H. Mendonca, Daniel Brodie, Eddy Fan, Robert H. Bartlett, Michael M. McMullan, Steven A. Conrad

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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BackgroundThe Extracorporeal Life Support Organization (ELSO) Maastricht Treaty for Nomenclature in Extracorporeal Life Support (ECLS) established consensus nomenclature and abbreviations for ECLS to ensure accurate, concise communication.MethodsWe build on this consensus nomenclature by layering a framework of precise and efficient abbreviations for cannula configuration that describe flow direction, number of cannulae used, any additional ECLS-related catheters, and cannulation sites. This work is a consensus of international representatives of the ELSO, including those from the North American, Latin American, European, South and West Asian, and Asian-Pacific chapters of ELSO.ResultsThe classification increases in descriptive capability by introducing a third (cannula tip position) and fourth (cannula dimension) level to those provided in the previous consensus on ECLS cannulation configuration nomenclature. This expansion offers the simplest level needed to convey cannulation information yet allows for more details when required.ConclusionsA complete nomenclature for ECLS cannulation configurations accommodating future revisions was developed to facilitate ability to compare practices and results, to promote efficient communication, and to improve quality of registry data.

Original languageEnglish
Article number36
Number of pages9
JournalCritical Care
Publication statusPublished - 8 Feb 2019


  • Extracorporeal life support
  • Membrane oxygenation
  • Nomenclature
  • Abbreviation
  • Configuration
  • Cannula
  • ELSO

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