Can Photoplethysmography Variability Serve as an Alternative Approach to Obtain Heart Rate Variability Information?

Heart rate variability: standards of measurement, physiological interpretation and clinical use. Task force of the European society of cardiology and the north american society of pacing and electrophysiology. Circulation 1996; 93: 1043–1065

Akselrod S, Gordon D, Madwed JB, Snidman NC, Shannon DC, Cohen RJ 1985 Hemodynamic regulation: investigation by spectral analysis. Am J Physiol 249: H867–H875

Bigger JT Jr., Fleiss JL, Rolnitzky LM, Steinman RC, Schneider WJ 1991 Time course of recovery of heart period variability after myocardial infarction. J Am Coll Cardiol 18: 1643–1649

Broome IJ, Mason RA 1988 Identification of autonomic dysfunction with a pulse oximeter. Anaesthesia 43: 833–836

Davies CT, Neilson JM 1967 Sinus arrhythmia in man at rest. J Appl Physiol 22: 947–955

Eckberg DL 1997 Sympathovagal balance: a critical appraisal. Circulation 96: 3224–3232

Huang W, Shen Z, Huang NE, Fung YC 1998 Engineering analysis of biological variables: an example of blood pressure over 1 day. Proc Natl Acad Sci U S A 95: 4816–4821

Huang W, Shen Z, Huang NE, Fung YC 1998 Use of intrinsic modes in biology: examples of indicial response of pulmonary blood pressure to +/- step hypoxia. Proc Natl Acad Sci USA 95: 12766–12771

Huikuri HV, Koistinen MJ, Yli-Mayry S, Airaksinen KE, Seppanen T, Ikaheimo MJ, Myerburg RJ 1995 Impaired low-frequency oscillations of heart rate in patients with prior acute myocardial infarction and life-threatening arrhythmias. Am J Cardiol 76: 56–60

Kleiger RE, Miller JP, Bigger JT Jr., Moss AJ 1987 Decreased heart rate variability and its association with increased mortality after acute myocardial infarction. Am J Cardiol 59: 256–262

Modi KD, Sharma AK, Mishra SK, Mithal A 1997 Pulse oximetry for the assessment of autonomic neuropathy in diabetic patients. J Diabetes Complications 11: 35–39

Huang NE, SRL, Shen Z. The mechanism for frequency downshift in nonlinear wave evolution. Adv Appl Mech 1996; 32: 59–111

Pincus SM 1991 Approximate entropy as a measure of system complexity. Proc Natl Acad Sci USA 88: 2297–2301