Related Party Transactions

12 Months Ended

Dec. 31, 2012

Dr. Edward Diethrich previously served on the Company's Board of Directors; his board term expired on June 11, 2009. Dr. Diethrich also previously served as a director of Arizona Heart Hospital ("AHH") through October, 2010. Dr. Diethrich currently serves as the Company's medical director, under an independent contractor arrangement.

AHH has been a long-standing customer of the Company, and the Company has contracted with AHH for physician training and clinical research services for a number of years. The below table is a summary of all transactions by and between the Company and AHH in 2012, 2011, and 2010.



	Year Ended December 31,
	2012 (a)		2011 (a)		2010
Payments from the Company to AHH:
Physician and clinical research expenses	$	125	$	209	$	114

Company revenue derived from AHH	$	690	$	912	$	1,064

(a) Due to Dr. Diethrich's retirement from the Board of Directors of AHH in October 2010, AHH was not considered to be a related-party to the Company during 2012 and 2011, and is presented for comparative purposes only.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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+ Details