Patterns of coronary compromise leading to bradyarrhythmias and hypotension in inferior myocardial infarction

Goldstein, James A.; Lee, Daniel T; Pica, Mark; Dixon, Simon; O’Neill, William W.

doi:10.1097/00019501-200508000-00002

Cited by 38 publications

(21 citation statements)

References 47 publications

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“…12 In the present study 12% had SB, out of which 10 were purely in inferior and 1each in inferior wall with right ventricular extension and inferior + posterior wall MI. In all these patients, SB was transient and majority of the patients had normal sinus rhythm (NSR) by the end of 1 st day.…”

Section: Sinus Bradycardia (Sb)supporting

confidence: 46%

A clinical study of arrhythmias associated with acute myocardial infarction and thrombolysis

et al. 2016

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Background: Arrhythmias are a common occurrence in ACS. This study was undertaken to analyze the incidence, frequency and type of arrhythmias in relation to the site of infarction to aid in timely intervention to modify the outcome in MI and to study the significance of Reperfusion arrhythmias.Methods: 100 patients were evaluated. ECG and cardiac enzymes were studied. Arrhythmias complicating AMI in terms of their incidence, timing, severity, type, relation, reperfusion and results were studied.Results: Of the 100 cases, 74% were males and 26% females of which incidence being common between 4th to 7th decades of life. AMI was common in patients with Diabetes and Hypertension (23% each). Incidence of AWMI (58%) is higher than IWMI (40%). Out of all arrhythmias, Ventricular Tachycardia was seen in 24% cases with 50% mortality and preponderance to Antero Lateral Myocardial Infarction. Sinus Tachycardia was seen in 23% of cases with preponderance to Antero Lateral Myocardial Infarction and persistence of Sinus Tachycardia was a prognostic sign, mortality being 22%. Complete Heart Block and Sinus Bradycardia were seen with IWMI, incidence being 53.8% and 100% respectively. Bundle Branch Block was common in AWMI (31%) than IWMI (10%). Among 64 thrombo-lysed cases, 21 had Reperfusion Arrhythmias without any mortality, whereas remaining 43 without Reperfusion Arrhythmias had mortality of 18.6%.Conclusions: According to the study, Tachy-arrhythmias are common with Anterior Wall Myocardial Infarction and Brady-arrhythmias in Inferior Wall Myocardial Infarction. Reperfusion Arrhythmias are a benign phenomenon and good indicator of successful reperfusion.

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Section: Sinus Bradycardia (Sb)supporting

confidence: 46%

A clinical study of arrhythmias associated with acute myocardial infarction and thrombolysis

et al. 2016

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“…Patients with acute RVMI are at an increased risk for high-grade atrio-ventricular (AV) block, bradycardia and hypotension without AV block. Recent findings now document that during acute coronary occlusion, bradycardia hypotension and AV block are far more common in patients with proximal RCA lesions inducing right ventricle and left ventricle inferior-posterior ischemia [10].…”

Section: Discussionmentioning

confidence: 99%

Clinical Profile and In-Hospital Outcome of Patients with Right Ventricular Myocardial Infarction

George¹,

Patel²,

Thakkar³

2014

IJCM

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Objectives: Right ventricular myocardial infarction as assessed by various diagnostic methods accompanies inferior wall myocardial infarction in 30% to 50% of patients. Acute right ventricular myocardial infarction is associated with higher in-hospital morbidity and mortality related to life-threatening hemodynamic compromise and arrhythmias. Since there is scarcity of literature regarding epidemiology of clinical profile as well as in-hospital outcomes of patients with right ventricular myocardial infarction in the Indian population, this study is carried out with a goal of identifying the same in our hospital setting, to fulfill this void. Methods: We examined the incidence of risk factors in patients (n = 100) with inferior wall myocardial infarction and 100 patients with inferior wall myocardial infarction having right ventricular involvement. Results: The mortality rate was found to be 12% in patients with inferior wall myocardial infarction and 28% in patients having right ventricular involvement in inferior wall myocardial infarction. Conclusions: From the above study, it can be concluded that patients with inferior wall myocardial infarction who have right ventricular myocardial involvement are at an increased risk of death, and cardiogenic shock.

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“…La bradicardia sinusal es común (9-25%) durante la primera hora, especialmente en caso de infarto inferior 133 . En algunos casos, los opiáceos son la causa.…”

Section: Bradicardia Sinusalunclassified

ESC Guidelines on Management of Acute Myocardial Infarction in Patients Presenting With Persistent ST-Segment Elevation

Werf¹,

Bax²,

Betriu³

et al. 2009

Revista Española de Cardiología (English Edition)

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Patterns of coronary compromise leading to bradyarrhythmias and hypotension in inferior myocardial infarction

Cited by 38 publications

References 47 publications

A clinical study of arrhythmias associated with acute myocardial infarction and thrombolysis

A clinical study of arrhythmias associated with acute myocardial infarction and thrombolysis

Clinical Profile and In-Hospital Outcome of Patients with Right Ventricular Myocardial Infarction

ESC Guidelines on Management of Acute Myocardial Infarction in Patients Presenting With Persistent ST-Segment Elevation

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