Figure 1 ECG analysis:
P wave pattern appears, in I, II, III, aVF and chest leads upright, avR is inverted, PR interval is 0.18s, and the atrial rate is about 60bpm, so the basal heart rhythm is sinus rhythm . red marks all the ghost P. After
R3 and R8, there are P' (blue mark) (blue mark) after that, and there is no QRS wave group, accompanied by incomplete compensation interval, so P' is atrial premature beat that has not been uploaded.
R4 and R9 showed slightly different from sinus QRS, and had different pairwise overlaps with sinus P. The interlocking interval was about 1.65 seconds. Considering the junctional ejaculation of with hyperactivity, or high ventricular ejaculation.
Figure 2 Electrocardiogram analysis:
basal heart rhythm is sinus rhythm . red marks all the ghost P.
R4 has P' (blue mark) , which is atrial premature beats not uploaded .
R5 has a P' wave (blue mark), is inverted in II, III, aVF, avR is upright, the PR interval is 0.12s, and the chord interval is about 1.4s. From this, it can be seen that it is an atrial ejaculation of with excessive . There is a sinus P (red mark).
Figure 3 ECG analysis:
basal heart rhythm is sinus rhythm . red marks all the ghost P.
R3 has P' (blue mark), which is atrial premature beats not uploaded .
R4 is the junctional ejaculation of hyperactivity . There is a sinus P (red mark).
Figure 4 EKG analysis:
basal heart rhythm is sinus rhythm . red marks all the ghost P.
R1, R3, R5, and P' (blue mark), which is atrial premature beats without .
R2 and R6 are the junctional ejaculation of hyperactivity, and there are different pairs overlapping with the sinus P.
Figure 5 ECG analysis:
basal heart rhythm is sinus rhythm . red marks all the ghost P.
R4, R7, R9, and P' (blue mark), which is atrial premature beats and has not been uploaded . R14 is atrial premature beat .
R5, R8, and R10 are the junctional ejaculation of hyperactivity, and there are different pairs overlapping with the sinus P.
Related knowledge points:
1. Atrial premature beat
originates from premature beats near the left and right atria, atrial septum, vena cava and coronary sinus mouth, and is called atrial premature beats (APB). Among all kinds of premature beats, the incidence of atrial premature beats is the highest.
Holter monitoring shows that the incidence of atrial premature beats in normal populations is 75%-90%. Most patients with nonorganic heart disease have occasional premature beats, and the total number of atrial premature beats in 24 hours does not exceed 100 times.
originated from the premature atrial stroke on the peak of T wave induced atrial tachycardia , atrial flutter and atrial fibrillation.
atrial electrocardiogram characteristics: ectopic P' waves that appear before the
① phase have different morphology from sinus P waves;
②P'R interval 0.12 seconds;
③ are mostly incomplete compensatory intervals, that is, the spacing between the two sinus P waves before and after premature beat is less than twice the spacing between normal PP.
2. Atrial ejaculation
When the sinus frequency drops, the ectopic pacing point in the atrial passively releases one or two consecutive excitations, forming a passive atrial inhibition, which is called atrial ejaculation.
Diagnostic conditions:
1, delaying the occurrence of single or paired atrial pulsation, the P' wave pattern is different from the sinus P wave.
2, 0.1-1.2s during the ejaculation period, frequency 50-60bpm.
3, P'-R interval ≥0.12s.
atrial ejaculation occurs three times or more in a row, which is called atrial heart rhythm (atrial ejaculation heart rhythm).
3. Accelerated atrial ejaculation
Diagnostic points:
① The early P' wave pattern is different from sinus P wave.
②The interval between the joints is 0.6-1s, and the atrial rate is 60-100bpm.
③P'R interval ≥0.12s.
atrial ejaculation occurs three times or more in a row, which is called accelerated atrial heart rhythm .
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