HEVA appreviation or acronym CVD

I cannot find out this abbreviation so it can be expanded.  Here is the context.  Appreciate any input. darlene666

Sent a report in with a flag. It sounded like CVA to me but nowhere in the - a c d a c a
Thu Feb 10 17:40:00 2011
report was anything related to that. What QA came up with was HEVA. Here is the sentence
2. The patient instructed to have a chest x-ray, PA and lateral, status post MVR, HEVA, and to bring the film. Here are the diagnosis and procedures.

Does anyone have a clue what HEVA could be?

PREOPERATIVE DIAGNOSIS(ES):
1. Mitral regurgitation, tricuspid regurgitation.
2. Congestive heart failure.
3. Hypertension.
4. Diabetes mellitus.
5. Hypercholesteremia.
6. Atrial fibrillation.
7. Sleep apnea.
8. Pulmonary hypertension.

PROCEDURE:
1. Mitral valve replacement.
2. Tricuspid valve annuloplasty.
3. AtriCure maze.
4. Postoperative pacemaker.