Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Our report on our audits of the consolidated financial statements of CardioGenics Holdings, Inc. as of and for the years ended October 31, 2014 and 2013, which expressed an unqualified opinion on those financial statements and contains an explanatory paragraph relating to the Company’s ability to continue as a going concern, included in this Annual Report on Form 10-K for the year ended October 31, 2014, is dated February 12, 2015. We consent to the incorporation by reference of our report in the following registration statements previously filed by the Company with the Securities and Exchange Commission pursuant to the Securities Act of 1933: the registration statement on Forms S-8 with SEC file No. 333-137162.

/s/ CohnReznick LLP

Roseland, New Jersey

February 12, 2015