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elektrogastroenterografija

PEGEG - concerning a simple non-invasive method of an indirect estimation of impellent function GASTROINTESTINAL TRACT, based on registration, a filtration and a spectral analysis of the biological potentials registered from a surface of a body of the person (Shede H., Clifton J., 1961; Christensen J., 1971) [45].

Peripheric elektrogastroenterografija (PEGEG) it is based on a principle of measurements of electric potential from a surface of integuments of the top and bottom extremities or a forward abdominal wall of the patient. For record of a signal we used device "Gastroskan-GeM" framed NPP "Source-system" of Frjazino. Device "Gastroskan-GeM" is included by the amplifier of an alternating current with the filters forming a pass-band of frequencies of 0,01-0,25 Hz, and a range of measurement of entrance strains 10-5000 mkv, is long not polarised electrodes, and the program for the analysis of results. The device structure includes also amplifiers and rn-metric probes for acidity monitoring in the top departments GASTROINTESTINAL TRACT.

Registration elektrogastroenterograficheskogo a signal occurs in 5 frequency ranges corresponding to electric activity of departments GASTROINTESTINAL TRACT: a stomach of 0,03-0,07 Hz; a duodenum of 0,18-0,25 Hz an ileal intestine of 0,07-0,13 Hz; a jejunum of 0,13-0,18 Hz; a colon 0,01-0,03Гц;

The device provides reception and registration of a signal from epicutaneous electrodes, and also storage, processing and documentary representation of the received information.

elektrogastroenterografija it is spent in one of two regimens:

• standard research;

• monitoring of electric activity GASTROINTESTINAL TRACT within 2-24 hours.

Standard research of electric activity GASTROINTESTINAL TRACT includes 2 stages: 1 stage - toshchakovoe research by duration 40
Minutes, 2 stage - research after a standard breakfast (200 ml of warm tea, 4 g Saccharum, 100 g a white loaf) in of 40 minutes. Duration of registration of a signal for reception of qualitative records not less 40мин.

For research carrying out by a standard technique measuring electrodes had on the sites of a skin degreased and covered with electrowire Pasta: № 1 (measuring) in the bottom third of right forearm on a medial surface; № 2 (measuring) in the bottom third of right anticnemion on a medial surface; №3 (neutral) in the bottom third of left anticnemion on a medial surface (fig. 1).

Fig. 1. The scheme of a locating of electrodes on extremities at carrying out standard peripheric EGEG

The choice of the given abduction is caused by that in it the registered signal has the greatest intensity. Registration began in 5 minutes after the equipment of electrodes.

Advantages 2 etapnogo researches - estimation possibility as motor, and evakuatornoj functions of the top departments GASTROINTESTINAL TRACT (a stomach and a duodenum). Comparison toshchakovoj motor function and
evakuatornoj functions after an alimentary load allows to tap both functional, and an organic pathology of the top departments GASTROINTESTINAL TRACT. Considering variability of physiological norm of motor function GASTROINTESTINAL TRACT on an empty stomach, the comparative analysis toshchakovogo and digestive investigation phases is always carried out.

Standard dvuhetapnoe research of motor function GASTROINTESTINAL TRACT, mainly to use for an estimation motor and evakuatornoj functions of the top departments GASTROINTESTINAL TRACT (a stomach, DPK).

At the signal analysis following absolute and relative indicators pay off.

P (i) - power, reflects absolute electric activity of each department GASTROINTESTINAL TRACT. At the analysis of the received data it has been taped, that digits of absolute power (PS and P (i)) differ at healthy surveyed and patients with the identical diagnosis. Unlike absolute, authentically stable there were relative indicators of electric activity P (i)/PS. This indicator represents the relation of absolute value of electric activity in each department GASTROINTESTINAL TRACT R (i) to total activity PS.

pokazatelel P (i)/PS is the core at decoding of data PEGEG. It is defined in percentage by the contribution of a separate organ GASTROINTESTINAL TRACT in the general total level of electric activity of all GASTROINTESTINAL TRACT and pays off separately for each department GASTROINTESTINAL TRACT.

The factor of rhythm Kritm, pays off as a parity of length bending around a department spectrum GASTROINTESTINAL TRACT to width of a spectral site on an axis of abscisses. The given indicator precisely enough reflects rhythm of reductions. The rhythm factor allows to estimate presence and character of propulsive reductions gladkomyshechnyh structures for each department GASTROINTESTINAL TRACT. Absence of rhythmical reductions - their abaissement or
Increase, causes indicator change accordingly towards reduction or augmentation, in comparison with indicators of healthy people.

From normal physiology it is known, that adequate work of all departments GASTROINTESTINAL TRACT provides normal evacuation of a chyme. Thus, stable indicators of parities of electric activity of various departments are necessary for maintenance of adequate work GASTROINTESTINAL TRACT.

Thus, electrophysiological parametres motorno - evakuatornoj can be described functions by means of 3 basic indicators peripheric elektrogastroenterografii:

• Electric activity (Pi/Ps) - the percentage contribution of each of digestive tube departments to the general frequency spectrum, the peak characteristic, speaks about force of reductions of each department GASTROINTESTINAL TRACT. The given indicator is estimated in percentage (%)

• rhythm Factor (Kritm) - the frequency characteristic, reflects rhythm of reductions of various departments GASTROINTESTINAL TRACT

The parity factor (Pi/Pi+1) - a parity of electric activity above laying department to more low laying, speaks about co-ordination of reductions of various departments GASTROINTESTINAL TRACT [43,44,45,46,78,102].

Norms of basic indicators PEGEG are presented in table 6.

Table 6

Normal indicators peripheric EGEG

Department GASTROINTESTINAL TRACT P (i)/PS, (%) P (i)/P (i+1) Kritm
Stomach 22,41±11,2 10,4±5,7 4,85±2,1
DPK 2,1±1,2 0,6±0,3 0,9±0,5
Jejunum 3,35±1,65 0,4±0,2 3,43±1,5

Ileal intestine 8,08±4,01 0,13±0,08 4,99±2,5
Colon 64,04±32,01 ? 22,85±9,8

2.5

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Scientific source AKOPJAN AJARPI NORIKOVNA. Diagnostics and treatment of functional disturbances of a motility of organs of digestion at children (electromyographic and metabolic aspects). The dissertation on competition of a scientific degree of the candidate of medical sciences. Moscow - 2014. 2014

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Other medical related information elektrogastroenterografija:

  1. the Table of contents
  2. the List of reductions:
  3. elektrogastroenterografija
  4. Motor function of a gastroenteric tract at healthy surveyed children
  5. Peripheric elektrogastroenterografija in pediatric practice
  6. the Characteristic of surveyed children
  7. elektrogastroenterografija
  8. Chapter 4 Discussion of the received results
  9. the List of the used literature: