As of May 25th, 2020, there were over 5.5 million confirmed cases of COVID-19 worldwide and around 1.7 million in the US, where almost 100,000 deaths have occurred. Acute Respiratory Distress Syndrome (ARDS) presents secondary to COVID-19 and is primarily treated by mechanical ventilation. Of all hospitalized COVID- 19 patients, around 20% will be intubated and mechanically ventilated. Unfortunately, ARDS patients are especially susceptible to ventilator induced lung injury (VILI) and as many as 80% of intubated COVID-19 patients have died. In contrast, ECMO bypasses the lungs, thereby avoiding VILI, and the patient?s blood is directly oxygenated using an extracorporeal circuit containing a gas-permeable membrane. While ECMO has shown increased survival relative to mechanical ventilation, the complexity of the ECMO procedure, associated bleeding and clotting risks, and labor intensiveness has restricted its use. We propose to develop a new oxygenator membrane constructed from silicon nanopore membranes (SNM). The enhanced biocompatibility and increased gas flux of the SNM will enable the Silicon Membrane Oxygenator (SiMOx) - a compact and potentially anticoagulation-free ECMO system. The SiMOx will establish a new paradigm of ?set it and forget it? blood oxygenation that is characterized by decreased operational complexity, diminished bleeding/clotting risks, and reduced personnel needs.

Public Health Relevance

As of May 25th, 2020, there were over 5.5 million confirmed cases of COVID-19 worldwide and around 1.7 million in the US, where almost 100,000 deaths have occurred. While much attention has been directed to the need for mechanical ventilators, severely ill COVID-19 patients are susceptible to ventilator induced lung injury (VILI), which can be fatal. Therefore, we will develop a new membrane technology that will be used to bypass the lungs of COVID-19 patients and oxygenate their blood directly.

Agency
National Institute of Health (NIH)
Institute
National Institute of Biomedical Imaging and Bioengineering (NIBIB)
Type
Research Project--Cooperative Agreements (U01)
Project #
3U01EB025136-03S1
Application #
10186950
Study Section
Program Officer
Wolfson, Michael
Project Start
2017-09-26
Project End
2021-06-30
Budget Start
2020-12-10
Budget End
2021-06-30
Support Year
3
Fiscal Year
2021
Total Cost
Indirect Cost
Name
University of California San Francisco
Department
Pharmacology
Type
Schools of Pharmacy
DUNS #
094878337
City
San Francisco
State
CA
Country
United States
Zip Code
94143
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