ES Teck System (Cardiology) HRV Photoelectrical Plethysmograph
HRV ( short time) HRV Reference: Task Force of The European Society of Cardiology and The North American Society of Pacing and Electrophysiology (1996)
SpO2 and Photoelectrical Plethysmograph References: Nichols WW, O’Rourke MF. McDonald’s : Blood Flow in Arteries:Theoretical, Experimental and Clinical Principles. London: Arnold, 1998. Takazawa, Kenji; Tanaka, Nobuhiro; Fujita, Masami; Matsuoka, Osamu; Saiki, Tokuyu; Aikawa, Masaru; Tamura, Sinobu; Ibukiyama, Chiharu :Assessment of Vasoactive Agents and Vascular Aging by the Second Derivative of Photoplethysmogram Waveform Hypertension: Volume 32(2)August 1998pp 365- 370 IToshiaki OTSUKA, Tomoyuki KAWADA, Masao KATSUMATA, Chikao IBUKI, and Yoshiki KUSAMA ndependent Determinants of Second Derivative of the Finger Photoplethysmogram among Various Cardiovascular Risk Factors in Middle-Aged Men Hypertens Res Vol. 30, No. 12 (2007) Toshiaki Otsuka,, Tomoyuki Kawada, Masao Katsumata,Chikao Ibuki, :Utility of Second Derivative of the Finger Photoplethysmogram for the Estimation of the Risk of Coronary Heart Disease in the General Population Circ J 2006; 70: 304 – 310 Alberto Avolio : The finger volume pulse and assessment of arterial properties.Journal of Hypertension 2002, 20:2341–2343 Oximeter Guidelines 1998
Autonomic Nervous System and Heart rate variability
SpO2 AND Photoelectrical Plethysmography SpO2 Probe Infra red/ Red 660/905 nm Photo diode SpO2 % PR Vascular waves
SpO2 ANALYSIS Oxygen - hemoglobin Affinity Changes. The functions of hemoglobin are oxygen pickup and delivery. The hemoglobin has an affinity (the strength of bond between oxygen and hemoglobin) that can be increased or decreased due to various situations. If hemoglobin has an increased affinity, it is highly saturated; but oxygen is less available for release to the tissues due to the strong bond. The reverse is also true.
Analysis of the second derivative and diseases : b/a
Analysis of the second derivative and diseases : d/a
Specificity and sensitivity of the b/a and d/a indicators
Ref. Toshiaki OTSUKA, Tomoyuki KAWADA, Masao KATSUMATA, Chikao IBUKI, and Yoshiki KUSAMA Independent Determinants of Second Derivative of the Finger Photoplethysmogram among Various Cardiovascular Risk Factors in Middle- Aged Men Hypertens Res Vol. 30, No. 12 (2007)
HRV module: To analyze the basic rhythms of the NN or RR intervals in electrocardiograms, both in the time domain and in the frequency domain (short time 5 minutes) It only provides numerical analyses of the input electrocardiogram. Estimate of the parasympathetic and sympathetic system stimulation. PP module: Analyze the pulse waveform by photoelectric plethysmography and Pulse rate. Evaluation of Large and small artery EIS module: Monitoring of diseases, functional and lifestyle ‘ treatments Adjunct to conventional diagnosis of ADHD children BIA module : Calculation and Historical Tracking of body composition E.S TECK COMPLEX INTENDED USES
Body Impedance Analysis (BIA) Measurement of the Resistance and Reactance in Tetra polar mode with a frequency of 50 KHz
Resistance and Reactance measurements Resistance is a measure of how difficult it is for electricity to flow through an object. Reactance Most objects have some capacitance, which is a measure of ability to store an electrical charge. The more capacitance the object has, or the faster the current changes direction, the less the object will “react” to the current.
EIS B I A Peer reviews formula Total Body Water :TWB 5-19 y.o Davies et al 1988 20-80 y.o Lukaski and Bolonchuk 1988 Adult obese subjects: Segal et al 1988 Fat free fat mass: 7-15 y.o Deurenberg et al 1991 16-83 y.o Deurenberg et al 1991 Extra cellular water volume : EWC Sergi G, et al 1994
Impedance Components Phase Angle Xc = 1 / (2 * PI * F * C), C – Capacity [Farad] Phase Angle = Arctan (Xc / R)
Clinical application in survival in colorectal cancer The survival curves for the 2 categories of phase angle are shown. Patients with a phase angle 5.57 had a median survival of 40.4 mo (95% CI: 21.9, 58.8; n = 26); this difference was significant (P = 0.0001).
SpO2 RESULTS AND MANAGEMENT OF THE PHOTOELECTRICAL WAVE
PHOTOELECTRICAL PLETHYSMOGRAPH ANALYSIS AND RESULTS
Vascular Indicators PH : Relation with blood flow of small artery EEI : Relation with LV ejection and elasticity of large artery - LV Ejection Insufficiency DDI : Relation with contraction and tension of small artery - Hypertension & Arteriosclerosis DEI : Relation with blood flow to vein system. Etc (Estimated Cardiac Ejection time) : 260~380 Function of left ventricle
Statistical risk analysis No access before 5 measurements. The accuracy increased with the number of measurements. Statistical analysis of the indicators of each body systems and metabolic general indicators It is not a diagnosis, but help for the physician in the process of elimination