On August 7th I will see my neurosurgeon and get a date for my cervical spine surgery. I know I will have to be off warfarin for longer than I have ever been before. I am really interested in hearing from those with mechanical mitral valves who have had to have warfarin suspended for a period of time to find out how they did. I'm not talking about holding doses because the INR got too high but rather interruptions for other reasons such as surgery. Thanks so much everyone.