An Acute Myocardial Infarction Case that Survived An Out‐of‐Hospital Cardiac Arrest in Which Prominent Ischemic J Waves Were Documented

Myojo, Takuya; Sato, Nobuyuki; Matsuki, Motoki; Taniguchi, Osamu; Nakamura, Hideki; Hasebe, Naoyuki

doi:10.1111/j.1540-8159.2010.02874.x

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…JWS is characterized by the appearance of a prominent electrocardiographic J wave with a risk of ventricular fibrillation (VF), including inherited Brugada syndrome (BrS), traditional repolarization syndrome (ERS), idiopathic ventricular fibrillation (IVF), and acquired arrhythmias linked to STEMI and hypothermia. Myojo et al 7 reported that ischaemic J waves were observed during recurrent VF attacks in a patient with myocardial infarction, which implied that the appearance of J waves could be an important marker for lethal arrhythmias in acute ischaemia. Generally, J waves can be classified as inherited and acquired patterns.…”

Section: Introductionmentioning

confidence: 99%

Relationship Between an Ischaemic J Wave Pattern and Ventricular Fibrillation in ST-Elevation Myocardial Infarction Patients

Zhang¹,

Dong²,

Zhao³

et al. 2021

IJGM

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Section: Introductionmentioning

confidence: 99%

Relationship Between an Ischaemic J Wave Pattern and Ventricular Fibrillation in ST-Elevation Myocardial Infarction Patients

Zhang¹,

Dong²,

Zhao³

et al. 2021

IJGM

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“…However, recent studies have shown that J-waves are associated with the incidence of ventricular arrhythmias in patients with Brugada syndrome, myocardial infarction, and nonischemic cardiomyopathy. [1][2][3][4][5][6][7] Consumption of fish oil containing large amounts of n-3 polyunsaturated fatty acids (PUFAs) including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) has been shown to reduce cardiovascular events and death. 8) A 45% reduction in sudden cardiac death was reported with the consumption of n-3 PUFAs in the GISSI-Prevenzione trial, 9) and EPA combined with statin therapy significantly reduced major coronary events in hypercholesterolemic patients with established coronary artery dis-ease in the JELIS trial.…”

mentioning

confidence: 99%

Relationship Between Serum Eicosapentaenoic Acid Levels and J-Waves in a General Population in Japan

et al. 2018

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We previously showed that J-waves were found more frequently in patients with low levels of serum eicosapentaenoic acid (EPA) in the acute phase of myocardial infarction, and were associated with the incidence of ischemia-related ventricular arrhythmias. However, the relationship between J-waves and serum EPA levels in a general population remains to be elucidated.The Iwaki Health Promotion Project is an ongoing community-based health promotion study in Iwaki, Hirosaki, which is in northern Japan. A total of 1,052 residents (mean age, 53.9 ± 15.4 years; 390 men) who participated in this project in 2014 were studied. A standard 12-lead electrocardiogram (ECG) was recorded and serum EPA levels were measured to evaluate the relationship between J-waves and serum EPA levels. J-waves were found in 52 (5%) subjects and were observed more frequently in male than female subjects (44 [11%] versus 8 [1%], P < 0.0001). More than half of the J-waves were the notched type (60%), and J-waves were detected most frequently in inferior leads on ECG (52%). The RR interval was longer and QTc duration shorter in subjects with J-waves than those without. No significant difference was found in serum EPA levels between subjects with and without J-waves (70 [49-116] versus 65 [41-106] μg/mL, P = 0.40). In multivariate analysis, male gender and RR interval were independent factors associated with the presence of J-waves.There was no significant relationship between J-waves and serum EPA levels in this general population in Japan. Various mechanisms for manifestation of the J-waves are suggested.

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“…A prominent J wave merging into a steep downsloping ST segment without an initial upsloping phase is termed the J wave-like ST-segment elevation [ 6 ]. Several studies have suggested that some cases of acute myocardial infarction (AMI) are mechanistically linked to this distinctive ST-segment elevation pattern [ 7 ]. However, to the best of our knowledge, the J wave-like ST-segment elevation on the ECG has been rarely reported to occur in patients with ICH.…”

Section: Discussionmentioning

confidence: 99%

Transient J wave-like ST-segment elevation in intracerebral hemorrhage: a case report

Zhang

2022

BMC Cardiovasc Disord

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Background Certain cerebrovascular events can induce electrocardiography (ECG) abnormalities and cardiac dysfunction. The most frequent patterns reported are nonspecific ST-T change, inverted or broad T wave, prolongation of QT interval as well as ST-segment depression or elevation. Here we present a case of intracerebral hemorrhage (ICH) with transient J wave-like ST-segment elevation accompanied by myocardial lesion. Case presentation A 58-year-old woman was admitted to our hospital and diagnosed with right basal ganglia region cerebral hemorrhage. The ECG recorded on the second hospital day showed transient J wave-like ST-segment elevation accompanied by increased myocardial troponin I and myocardial enzyme. Conclusions The J wave-like ST-segment elevation may be not a specific ECG signs for primary ischemic heart diseases as it also could be found in ICH patients. We believe that the follow-up ECGs can be used in conjunction with repeated myocardial enzyme analysis and echocardiography to differentiate ICH-ralated J wave-like ST-segment elevation from acute myocardial infarction (AMI), thus avoiding unnecessary cardiac catheterization.

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An Acute Myocardial Infarction Case that Survived An Out‐of‐Hospital Cardiac Arrest in Which Prominent Ischemic J Waves Were Documented

Cited by 9 publications

References 21 publications

Relationship Between an Ischaemic J Wave Pattern and Ventricular Fibrillation in ST-Elevation Myocardial Infarction Patients

Relationship Between an Ischaemic J Wave Pattern and Ventricular Fibrillation in ST-Elevation Myocardial Infarction Patients

Relationship Between Serum Eicosapentaenoic Acid Levels and J-Waves in a General Population in Japan

Transient J wave-like ST-segment elevation in intracerebral hemorrhage: a case report

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