A Survey to Quantify the Number and Structure of Extracorporeal Membrane Oxygenation Retrieval Programs in the United States

(1) : Extracorporeal membrane oxygenation (ECMO) represents a potentially lifesaving support for respiratory and/or circulatory failure but its availability is limited to larger medical centers. A well-organized regional ECMO center with remote cannulation and retrieval ability can offer this intervention to patients treated at hospitals without ECMO. Information regarding the number and structure of ECMO retrieval programs in the United States is limited and there are no data regarding the size and structure of existing programs and which physician specialists perform cannulations and provide management. (2) We created a survey of 12 questions that was sent out to all adult US ECMO programs registered in the ELSO database. The data for the study were collected through an online survey instrument that was developed in Survey Monkey (Monkey Headquarters, Portland, OR). (3) Approximately half of the centers that received the survey responded: 136 out of 274 (49.6%). Sixty-three centers (46%) have an ECMO retrieval program; 58 of these offer both veno-arterial (V-A) and veno-venous (V-V) ECMO, while 5 programs offer V-V ECMO rescue only. Thirty-three (52%) centers perform less than 10 ECMO retrievals per year, and only five (8%) hospitals can perform more than 50 ECMO rescues per year. Cardiothoracic surgeons perform the majority of the ECMO cannulations during retrievals in 30 programs (48%), followed by intensivists in eight (13%) programs and cardiologists in three (5%) centers. (4) Many ECMO centers offer ECMO retrievals; however, only a minority of the programs perform a large number of rescues per year. These cannulations are primarily performed by cardiothoracic surgeons.