Еcology, geology, space: 03/27/14

Thursday, March 27, 2014

Ambulatory ECG. FAR TECHNOLOGY

Ambulatory ECG monitoring. NI Technology HRV Yabluchansky, AV Martynenko, LA Martimyanova

Series: for real doctors. Second edition, corrected, revised.

Kharkov, 2010, 187 p.

The book is dedicated to ambulatory ECG monitoring - from technical aspects to

Examples of clinical application of the proposed draft of the report and

interpretation of the results. Designed for cardiologists, specialists

functional diagnosis, doctors of other specialties related to

use in their work results ambulatory ECG monitoring.

Table of contents

Abbreviations

From the beginnings to the present day

The object of study

Sources of electrophysiological processes in the heart

Spatio-temporal organization of the myocardium

Cardiac conduction system

The regulation of the heart

Mirror regulation

Systems and procedures

Of recorders

Maintenance

Necessary conditions for a quality check

The recording quality

Duration of registration

Artifacts

Cost of research

Leads in AECG

Statement

Protocol

Diary

Diagnostic and therapeutic procedures

Smart AECG

The signal-averaged high-resolution AECG

Physiological norms AECG

AECG is much broader long-term ECG

Testing the biological clock

On the biological and astronomical clock

Basic concepts and indicators of the biological clock

Biorhythms

The guard at the gate

Mechanisms of formation and regulation of biorhythms

The most important synchronizer

The whole salt in the transient

Circadian rhythms and the central clock

Dream

Wake

Aging of the biological clock

Circadian index

The clinical significance of biorhythms

Desynchronoses

The value of the biological clock in the AECG

On the quasi-stationary and transient

Heart rate variability - a window to the regulatory protsessyorganizma

The assessment of the transient

By separating the quasi-stationary and transient

HRV technology

Methods of HRV

Inteprpretatsiya HRV

Removing restrictions

Methods of transients

Examples of transients with explanations

The standard protocol to enter into

The main thing in quasi-stationary and transient

AECG and medical smeshatelstva

Tale of a lie, but it hints

Control regulation

Seven times, measure, cut, may not have

Extremes are not justified

Time to rewrite the scrolls

Supra-class drug

Dronedarone

Dronedarone, or, after all, amiodarone?

If you are interested in atrial fibrillation

Also arrhythmia

Examples of standard reports AECG

The major clinical syndromes and diseases

Large adaptation syndrome

Arrhythmias

A word about heart rate

Sinus tachycardia

Sinus bradycardia

Sinus arrhythmia

Sinus block (second degree with a Wenckebach period)

Ventricular pre-excitation syndrome

Premature complex

Paroxysmal tachycardia

Atrial rhythm

Ventricular rhythms

Parasystole

Bradyarrhythmias

Sinus node dysfunction

Violations of the atrioventricular conduction

Fibrillation and atrial flutter

The risk factor of ventricular tachycardias

Brugada syndrome

Ventricular late potentials

Literature

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Remote Patient Monitoring

Описание:

In November 2008, Clinica filmed the researchers from Norwegian firm Cardiaccs AS testing their cardiac monitoring device on a pig. This took place at the Interventional Centre at the Rikshospitalet University Hospital in Oslo, Norway. The Rikshospitalet Interventional Centre develops new technologies in a methodical way, providing solid data to back up novel techniques.

METHODS FOR TRANSIENT

A study of transient processes makes it necessary to consider the sequence of RR-intervals from the point of nonlinear dynamical systems, central to which is occupied by the concept of stability of the system and its measures - Lyapunov exponents. Since the use of the latter in the HRV is associated with difficulties due to a large stochastic component, developed a method of local Lyapunov exponents - M-indices. The method allows to analyze the parts of a record AECG arbitrary length and degree of nonlinearity and a statistically significant and robust to the stochastic component of the results.

Using the method defined by the index:

M0 - the average value of the largest Lyapunov exponent for the local study site HRV. Sign M0 index shows that prevails in the study site of HRV, + - acceleration, - - braking. A value of - the degree of non-linearity plot of HRV compared with the function exp (t).

If the test plot is linear, then M0 = 0. It is clear that for fixed M0 HRV records will also be close to zero.

M1 - the index for assessing the temporal changes in HRV record: Does the movement in the phase space of the expansion or contraction phase flow. Sign of the index M1 shows what happens to the phase flow on the test site of HRV, + - extension, - - compression. A value - the rate of change of the phase flow on the test site HRV compared with the function exp (t). If the test section is stationary or changes are strictly periodic in nature, M1 = 0.

M - a composite index that characterizes the nonlinear and non-stationary transient at the test site recording of HRV. The sign + means the non-linear movement with a primary increase in heart rate, - means a non-linear movement with a primary decrease in heart rate. The value of the index M indicates the degree of non-linearity and non-stationary transient HRV.

EOS - Sub-Nanosecond Transient Absorption Spectrometer

Описание:

Video on a new version of the EOS software.

EOS is a broadband pump-probe sub-nanosecond transient absorption spectrometer with an extended time window. Its patent pending design utilizes a photonic fiber for probe light generation.

To the researchers using femtosecond transient absorption for studying ultrafast kinetics of photoinduced processes it is often desirable to extend the time window of investigation beyond several nanoseconds. The most widely used method in this case is Nanosecond Flash Photolysis. This technique requires a dedicated Q-switched laser with accompanying wavelength conversion equipment, laser table, additional flash photolysis spectrometer, etc. Outside of the need to set up an additional laser spectrometer, the main disadvantage of this method is its relatively low time resolution a typical IRF in the nanosecond flash photolysis experiment is 7-10 ns. Therefore even when combined the above two methods often do not allow for reliable measurements of sub-10 ns lifetimes. The EOS with its less than 1 ns time resolution and the electronically controlled pump-probe delay presents a perfect solution and in combination with the HELIOS provides continuous temporal coverage from femto- to milliseconds and beyond.

Ambulatory ECG. METHODS FOR TRANSIENT

Ambulatory ECG monitoring. Methods transient NI Yabluchansky, AV Martynenko, LA Martimyanova