PT  - JOURNAL ARTICLE
AU  - Robert W. Shields, Jr.
TI  - Heart rate variability with deep breathing as a clinical test of cardiovagal function
AID  - 10.3949/ccjm.76.s2.08
DP  - 2009 Feb 01
TA  - Cleveland Clinic Journal of Medicine
PG  - S37--S40
VI  - 76
IP  - 4 suppl 2
4099  - http://www.ccjm.org/content/76/4_suppl_2/S37.short
4100  - http://www.ccjm.org/content/76/4_suppl_2/S37.full
SO  - Cleve Clin J Med2009 Feb 01; 76
AB  - Research into heart rate variability (HRV) and respiration over the past 150 years has led to the insight that HRV with deep breathing (HRVdb) is a highly sensitive measure of cardiovagal or parasympathetic cardiac function. This sensitivity makes HRVdb an important part of the battery of cardiovascular autonomic function tests used in clinical autonomic laboratories. HRVdb is a reliable and sensitive clinical test for early detection of cardiovagal dysfunction in a wide range of autonomic disorders.