Exhibit 10.42

REVISED SUMMARY OF COMPENSATION ARRANGEMENT

APPLICABLE TO THE COMPANY’S NAMED EXECUTIVE OFFICERS

As of March 9, 2006, the following represents the compensation of the executive
officers of NMT Medical, Inc. (the “Company”):

 

      2006 Compensation

Executive Officer

  

Annual

Salary

  

Bonus for Work

Performed in 2005

   

Shares Underlying

Stock Options

Granted in 2005

John E. Ahern
President and Chief Executive Officer

   $ 400,000    $ 150,000 (1)   25,000

Richard E. Davis
Vice President and Chief Financial Officer

   $ 300,000    $ 100,000 (2)   19,000

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(1) Mr. Ahern’s bonus was paid in accordance with the terms of that certain
Amended and Restated Employment Agreement that he entered into with the Company
on December 31, 2002, which is filed as an exhibit to the Company’s Annual
Report on Form 10-K as filed with the Securities and Exchange Commission (“SEC”)
on March 20, 2003.

(2) Mr. Davis’ bonus was paid in accordance with the terms of that certain
Amended and Restated Employment Agreement that he entered into with the Company
on May 20, 2004, which is filed as an exhibit to the Company’s Quarterly Report
on Form 10-Q as filed with the SEC on August 10, 2004.