The diagnosis of myocardial infarction in the Wolff–Parkinson–White syndrome

Liu, Renguang; Chang, Qinghua

doi:10.1016/j.ijcard.2012.10.055

Cited by 16 publications

(14 citation statements)

References 6 publications

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“…During this time, the QRS complex is obviously widened and the PJ interval should be measured. The PJ interval prolongation provides that there is AVB in the normal pathway [ 15 , 16 , 18 ]. It is important for preoperative preparation and postoperative medical malpractice prevention to identify the presence of AVB according to ECG analysis before ablation.…”

Section: Discussionmentioning

confidence: 99%

Preexcitation syndrome: experimental study on the electrocardiogram of antegradely conducting accessory pathway

Liu

Chang

et al. 2018

BMC Cardiovasc Disord

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BackgroundPreexcitation syndrome is characterized by a dominant delta wave on the baseline electrocardiogram (ECG), resulting from the change in QRS initial vector by the accessory pathway (AP). This study is to explore the effect of ventricular preexcitation on the QRS initial, maximal and terminal vector in an experimental rabbit with preexcitation syndrome induced by programmed electrical stimulation.MethodsRabbits (n = 10) were randomized for the experimental model of ventricular preexcitation. Sensing and stimulating electrode catheters were placed in the high right atrium and along epicardial surface of atrioventricular groove of the left ventricular anterior wall, respectively. Programmed premature stimulation S2 was synchronized with P wave and utilized to stimulate the ventricle. The ECG recorded the electrical activity of the heart. As compared with the QRS complex during sinus rhythm, paced QRS was assessed regarding the initial, maximal and terminal vector. PS2 interval and PR interval were also measured and analyzed.ResultsPreexcitation was successfully simulated by ventricular pacing in the rabbits, including (1) Complete preexcitation: PS2 interval was less than PR interval; the difference was more than or equal to 47.00 ± 7.53 ms. (2) Incomplete preexcitation: PS2 interval was less than PR interval; the difference was less than 47.00 ± 7.53 ms. (3) Incomplete latent preexcitation: PS2 interval was more than or equal to PR interval; the difference was less than or equal to 13.00 ± 3.50 ms. (4) Complete latent preexcitation: PS2 interval was more than or equal to PR interval; the difference was more than 13.00 ± 3.50 ms.ConclusionsThe difference in the relative conduction velocity of the atrioventricular node versus the AP pathways determines the degree of preexcitation and different manifestation on ECG. The QRS terminal vector also reflects the ventricle preexcitation, indicating a valuable sign for the diagnosis of atypical or latent preexcitation.

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Section: Discussionmentioning

confidence: 99%

Preexcitation syndrome: experimental study on the electrocardiogram of antegradely conducting accessory pathway

Liu

Chang

et al. 2018

BMC Cardiovasc Disord

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“…3 BBB in WPW syndrome [1][2][3][4]. b) Widened QRS-complex didn't shorten due to increased RR interval in atrial fibrillation.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Wolff–Parkinson–White syndrome with bundle branch and fascicular block: The diagnostic clue of electrocardiogram

Wang

Liu

Chang

2015

International Journal of Cardiology

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“…The clinical picture isn't relieved for 30 min and the effect of nitroglycerin therapy is also disappointing which is suggestive of MI. The accurate diagnosis of MI is confirmed by serial myocardial biomarker measurements and the evolution of the MI [3].…”

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confidence: 93%

“…The WPW syndrome coexisting with the primary ST-T change is as follows: ST-T wave change is in accordance with the delta wave vector as the delta wave is apparent; ST-segment is horizontal, T wave inversion is symmetrical; and ST-T dynamic shift in two or more contiguous leads appears with the clinical symptoms. All the above indicate the diagnosis of primary ST-T change in preexcitation syndrome [3]. Many cases illustrate that primary ST-T change in patients presenting with the WPW pattern together with a clinical picture is suggestive of myocardial ischemia.…”

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confidence: 94%

“…The accessory pathway is located in the ischemic or the necrotic region [3]: if the blood supply of the accessory pathway was an infarct-related artery, ischemia-induced delta disappearance was transient and necrosis-induced delta disappearance was permanent and there was no further episode of tachycardia. Because the blood supply of the accessory pathway was the infarctrelated artery (proximal to the left anterior descending artery), we believe that the latter is most likely.…”

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confidence: 99%

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