Indian Journal of Anaesthesia

: 2013  |  Volume : 57  |  Issue : 5  |  Page : 507--515

Mapleson«SQ»s breathing systems

Tej K Kaul, Geeta Mittal 
 Department of Anaesthesia, Dayanand Medical College and Hospital, Ludhiana, India

Correspondence Address:
Tej K Kaul
95-C, Udham Singh Nagar, Ludhiana - 141 001, Punjab

Mapleson breathing systems are used for delivering oxygen and anaesthetic agents and to eliminate carbon dioxide during anaesthesia. They consist of different components: Fresh gas flow, reservoir bag, breathing tubes, expiratory valve, and patient connection. There are five basic types of Mapleson system: A, B, C, D and E depending upon the different arrangements of these components. Mapleson F was added later. For adults, Mapleson A is the circuit of choice for spontaneous respiration where as Mapleson D and its Bains modifications are best available circuits for controlled ventilation. For neonates and paediatric patients Mapleson E and F (Jackson Rees modification) are the best circuits. In this review article, we will discuss the structure of the circuits and functional analysis of various types of Mapleson systems and their advantages and disadvantages.

How to cite this article:
Kaul TK, Mittal G. Mapleson's breathing systems.Indian J Anaesth 2013;57:507-515

How to cite this URL:
Kaul TK, Mittal G. Mapleson's breathing systems. Indian J Anaesth [serial online] 2013 [cited 2020 Feb 18 ];57:507-515
Available from:;year=2013;volume=57;issue=5;spage=507;epage=515;aulast=Kaul;type=0