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https://thoracickey.com/basic-aspects-of-physiology-during-ecmo-support/
Oxygen delivery is the arterial oxygen content times cardiac output, which is the oxygen delivered to the tissues each minute. DO 2 depends on cardiac output, hemoglobin concentration, hemoglobin saturation, and dissolved oxygen. In the peripheral arterial capillary, hemoglobin releases oxygen.
http://www.learnpicu.com/ecmo
Flow in an ECMO circuit functions to deliver the oxygenated blood and can be thought of as cardiac output in VA ECMO and the primary driver for delivery of oxygenated blood in VV ECMO. Flow rate through a catheter is directly proportional to the internal diameter of the catheter and inversely proportional to its length.
https://www.atsjournals.org/doi/full/10.1164/rccm.201502-0267LE
Sep 15, 2015 · Oxygen delivery and consumption in each extracorporeal membrane oxygenation (ECMO) flow condition. ( A) Mean (±SD) o2 (oxygen consumption) and o2 (oxygen delivery) indexed to body surface area ( i o2, i o2 ).Author: Tosoni A, La Rotta G, Breatnach C, Anand, Foreman C, Davidson L, Redington An, Kavanagh Bp
https://intensiveblog.com/everything-ecmo-023/
Oxygen delivery must be able to meet oxygen demands/consumption (VO 2). It is therefore important to consider the ECMO output (or blood flow), haemoglobin, oxygen saturation, and patient oxygen requirements.
https://www.reliasmedia.com/articles/145898-extracorporeal-membrane-oxygenation-in-the-emergency-department
Mar 15, 2020 · Extracorporeal membrane oxygenation (ECMO) is a process whereby blood is drained from a vein, pumped through a membrane oxygenator that removes carbon dioxide (CO 2) and replenishes oxygen, and reintroduced into the body via an artery or a vein.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4557538/
Mar 21, 2013 · With FA cannulation, the oxygen saturation in the radial artery is significantly lower than the one in the oxygenator outlet. This may imply that the coronaries and the brain receive hypoxic blood from the left ventricle. These results suggest that antegrade cannulation for VA-ECMO improves oxygen delivery to the proximal aorta distribution.Author: Dimitrios V. Avgerinos, William DeBois, Lilia Voevidko, Arash Salemi
https://www.hindawi.com/journals/tswj/2014/393258/
Oxygen delivery can also be increased by red cell transfusion as well as by ensuring adequate arterial saturation. Because the anemic patient requires higher ECMO flows to achieve the same oxygen delivery, optimization of Hb prior to manipulation of flows may be desirable.Author: Mabel Chung, Ariel L. Shiloh, Anthony Carlese
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3935134/
Classically, during VV-ECMO, the extracorporeal transmembrane oxygen transfer depends primarily on ECMO blood flow, and the transfer of carbon dioxide depends on sweep gas flow (10,12). Arterial blood oxygenation results from a more complex interplay among recirculation, ECMO blood flow, oxygenator function, patient cardiac output (CO), and pulmonary shunting ( 9 ).Author: Liane Brescovici Nunes, Pedro Vitale Mendes, Adriana Sayuri Hirota, Edzangela Vasconcelos Barbosa, A...
https://www.mdcalc.com/oxygenation-index
The Oxygenation Index Predicts outcomes, especially in pediatric patients by helping to determine need for ECMO. This is an unprecedented time. It is the dedication of healthcare workers that will lead us through this crisis.
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