Inferior myocardial infarction. High-risk subgroups.

Berger, Peter B.; Ryan, Thomas J.

doi:10.1161/01.cir.81.2.401

Cited by 260 publications

(167 citation statements)

References 99 publications

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“…1 Routine early diagnostics used for RVMI detection rely on electrocardiogram and standard echocardiographic recordings. 2,3,4 Considering that in patients with RVMI the risk of serious complications and death are significantly increased 5,6,7 the assessment of RV systolic function is an important challenge. Tissue Doppler echocardiography (TDE) has proven to be a simple and reproducible marker of RV function which significantly correlates with the right ventricular ejection fraction assessed by first-pass radionuclide ventriculography and magnetic resonance imaging.…”

mentioning

confidence: 99%

Right Ventricular Function Suffers From Reperfusion Delay: Tissue Doppler Study

Kidawa

Kasprzak

Wierzchowski

et al. 2010

Clinical Cardiology

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In this study, impact of reperfusion delay on adverse cardiac events and right ventricular (RV) function in patients with acute right ventricular myocardial infarction (RVMI) was assessed. In 70 patients with RVMI, RV function was assessed by M-mode tricuspid annular plane systolic excursion (TAPSE) and by pulsed wave tissue Doppler echocardiography (TDE). Right ventricular early (E T ) and late diastolic (A T ), peak systolic tricuspid annular velocity, (S T ) and right ventricular myocardial performance index (RVMPI) were measured. Patients were divided into 2 groups according to the time between the onset of symptoms and percutaneous transluminal coronary angioplasty (PTCA)-group 1 (n = 25), 3 hours and group 2 (n = 45), >3 hours. During 30-day follow-up, we assessed adverse cardiac events like the following: death, cardiogenic shock, need for intra-aortic counterpulsation, temporary transvenous pacing support (PCM), presence of ventricular septal defect (VSD), cardiac tamponade, or free wall rupture. Results: Group 1 had significantly higher values of E T , S T , and TAPSE than group 2. RVMPI was significantly elevated in group 2. A total of 13 (18.2%) patients had a cardiac event, 5 patients (7.1%) died. We observed an increase of cardiac events in patients with reperfusion delayed more than 3 hours (P = .056). Conclusion: TAPSE-derived and TDE-derived right ventricular systolic and early diastolic velocities were less affected in patients with shorter time from pain onset to opening of the occluded right coronary artery (RCA). Presented initial data show that the tissue Doppler technique may be useful for identification of patients with RV infarction with higher rate of adverse cardiac events including death.

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confidence: 99%

Right Ventricular Function Suffers From Reperfusion Delay: Tissue Doppler Study

Kidawa

Kasprzak

Wierzchowski

et al. 2010

Clinical Cardiology

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“…THERE IS INCREASING DEMAND for an accurate method to evaluate right ventricular volumes and function, both in ischemic heart disease and in the follow-up of patients with congenital heart disease (CHD) (1)(2)(3)(4)(5). Established imaging modalities, such as echocardiography and tomographic-gated blood pool scintigraphy, are limited by the complex shape of the right ventricle (3,6).…”

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confidence: 99%

Comparison of right ventricular volume measurement between segmented k‐space gradient‐echo and steady‐state free precession magnetic resonance imaging

Alfakih

Thiele

Plein

et al. 2002

Magnetic Resonance Imaging

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Purpose:To compare right ventricular volume measurements and their reproducibility between steady-state free precession (SSFP) and conventional turbo gradient-echo (TGE) imaging. Materials and Methods:Right ventricular volumes and observer variabilities were compared between SSFP and TGE in 31 subjects (21 normal volunteers and 10 subjects with heart failure). For further internal validation of the right ventricular volumes, the left ventricle (LV) and right ventricle (RV) stroke volumes were compared for the normal volunteers. Results:The volumes as measured by SSFP were significantly larger than for TGE (mean bias end-diastolic volume [EDV] 11.1 Ϯ 14.2, end-systolic volume [ESV] 9.8 Ϯ 9.75). SSFP had lower interobserver variability (SSFP EDV -10.1 Ϯ 11.6 vs. TGE EDV -6.2 Ϯ 18.5) and intra-observer variability (SSFP EDV -2.0 Ϯ 6.3 vs. TGE EDV -6.1 Ϯ 14.8). The mean absolute differences between LV and RV stroke volumes for 21 normal volunteers were: TGE 5.8 Ϯ 12.9 (r 2 ϭ 0.72), SSFP 4.6 Ϯ 6.9 (r 2 ϭ 0.92).Conclusion: SSFP and TGE yield different measurement values of RV volumes with SSFP, providing a more reproducible measurement.

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“…Na maioria dos pacientes, o ventrículo direito retorna à função normal em um período de semanas a meses, sugerindo atordoamento isquêmico ao invés de necrose irreversível. Dessa forma, a isquemia ventricular direita pode ser demonstrada em até 50% de todos os infartos do miocárdio de região inferior, embora em somente 10% a 15% dos pacientes possam ser observadas alterações hemodinâmicas clássicas 502,503 . O infarto de ventrículo direito, quando acompanha o infarto inferior, apresenta elevada mortalidade (25% a 30%).…”

Section: -Infarto De Ventrículo Direitounclassified

III Diretriz sobre tratamento do infarto agudo do miocárdio

Avezum¹,

Carvalho²,

Mansur³

et al. 2004

Arq. Bras. Cardiol.

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Classe I: evidência ou concordância geral de que o tratamento é benéfico, útil e eficaz.Classe II: evidência conflitante e/ou divergência de opinião quanto à utilidade e à eficácia do tratamento.Classe IIa: forças das evidências/opiniões em favor da utilidade e da eficácia.Classe IIb: forças das evidências/opiniões menos bem estabelecidas quanto à utilidade e à eficácia.Classe III: evidência ou concordância geral de que o tratamento não é útil/eficaz e em alguns casos pode ser prejudicial. Nível de evidência A: presença de múltiplos estudos clínicos randomizados.Nível de evidência B: presença de um único estudo clínico randomizado ou de estudos não-randomizados.Nível de evidência C: consenso de especialistas.O nível de evidência será apresentado apenas para os tratamentos do infarto do miocárdio, não se aplicando aos procedimentos diagnósticos. Todos os métodos complementares deverão ser realizados por profissionais experientes, segundo as recomendações específicas de cada especialidade.

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Inferior myocardial infarction. High-risk subgroups.

Cited by 260 publications

References 99 publications

Right Ventricular Function Suffers From Reperfusion Delay: Tissue Doppler Study

Right Ventricular Function Suffers From Reperfusion Delay: Tissue Doppler Study

Comparison of right ventricular volume measurement between segmented k‐space gradient‐echo and steady‐state free precession magnetic resonance imaging

III Diretriz sobre tratamento do infarto agudo do miocárdio

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