Widely Split Double P Wave. We report a 78-year-old man as the first documented case of double P waves separated by 400 msec on 12-lead ECG. These P waves had different polarities on lead V 1 . The first P wave represented activation of the lateral wall of the right atrium, and ...
ECG Challenge: The Double-Double Discussion This is a narrow complex tachycardia with a rate of 124 beats/min. The QRS morphology and axis are normal. The QTc is prolonged, at 529 ms (normal, 390-450 ms for men). The underlying P waves appear sinus in origin (upright in II, III, an...
The ECG was normal the next day. This finding was interpreted as representing repolarization abnormalities (e. g., myocardial ischemia) by many health care workers. However, it represents an artifact called “pseudo double T wave”. The cause is unknown but most likely due to abnormalities ...
Nanda4,8,9* & P. Khuntia1,7,8* Frustrated magnets based on oxide double perovskites offer a viable ground wherein competing magnetic interactions, macroscopic ground state degeneracy and complex interplay between emergent degrees of freedom can lead to correlated quantum phenomena with ...
○ MI: diagnosis in the presence of one of the following: (1) electrocardiogram (ECG) showing unequivocal pathological Q waves and/or ST-segment elevation or depression in serial recordings; (2) history of typical or atypical angina pectoris, together with equivocal changes on the ECG and eleva...
By considering the linear ME effect, and by introducing the new basis, it is shown, that for a plain electromagnetic wave of mtvheaecgtofnorerstmoe-1eEle(acnrt)dreixcep2e.(ff−eFcuitωratth)p,eprtehaperrpoinoceltaehrdeiiznoagtfifowdniiatvhgeocntthoaerl (E) lies in the ...
Then, an tunable acoustic metafluid was created based on a piezoelectric transducer driven by the signals controlled by a sensor detecting the acoustic waves incident on the metamaterial, which was a feedback system realizing an adjustable effective mass density, modulus and transmission22. Meanwhile,...
Successful conversion was defined by two consecutive P waves uninterrupted by AF occurring any time within 30 s of the shock. If the shock resulted in atrial flutter or atrial tachycardia that required further intervention, the protocol was terminated and the shock was not counted as a success. ...
waves between two groups across different cortical brain regions. In the frontal region, the relative spectral density of α frequencies following melatonin intervention exhibited a statistically significant increase compared to the placebo group (Fig.3E,Fgroup*time = 6.34,P = 0.012;Ftime-mel...
His 12-lead ECG showed atrial tachycardia (AT) with an atrial cycle length (CL) of 300 ms and an inverted saw-tooth F-wave pattern in the inferior leads II, III, and aVF typical of atrial flutter. Electrophysiological study and radiofrequency catheter ablation were performed. A total of 3...