Exhibit 23.3 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the inclusion in this Registration Statement on Form S-4 of our report dated April 3, 2025 with respect to the consolidated financial statements of Profusa, Inc. included in this Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ Marcum LLP

San Francisco, CA

April 25, 2025