How to avoid determining P wave in PVC beat ?

4 Ansichten (letzte 30 Tage)
mona shabaan
mona shabaan am 21 Jan. 2023
Kommentiert: Star Strider am 22 Jan. 2023
Hello
Please help..me.
i am use the code to detect p wave on ECG Signal.
%%%P Peak detection
a=Rloc(i,j)-90:Rloc(i,j)-10;
m=max(y1(a));
b=find(y1(a)==m);
b=b(1);
b=a(b);
Ploc(i,j)=round(b);
Pamp(i,j)=round(m);
when pvc beat in signal the p wave you take location , how can be avoid that please? and thanks.

Akzeptierte Antwort

Star Strider
Star Strider am 21 Jan. 2023
There is no true P-deflection preceding a PVC.
That is essentially the definition of a Premature Ventricular Contraction or Premature Ventricular Complex (PVC), in which the ventricular contraction is initiated by the Prukinje fibers rather than the SA node. That a P-deflection appears just prior to the following ectopic deflection does not mean that the P-deflection initiated the ectopic contraction. Here, it appears simply to be a chance occurrence. The PVC has an associated compensatory pause following it, in which the A-V node is depolarised and suppressed. See Braunwald's Heart Disease, Single Volume, 12th Edition for a thorough discussion.
.
  4 Kommentare
mona shabaan
mona shabaan am 22 Jan. 2023
thank you.
Star Strider
Star Strider am 22 Jan. 2023
My pleasure!

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (0)

Kategorien

Mehr zu Signal Processing Toolbox finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by