<abstract xmlns="http://www.w3.org/1999/xhtml">Right ventricular myocardial infarction (RVMI) accompanies about 30–50% of inferior wall myocardial infarction. RVMI is associated with higher rates of cardiogenic shock, atrioventricular block, atrial fibrillation, increased mortality rates. The topic requires a scientific update, as only a few studies have been made on RVMI during the past decade. We aimed to analyse the impact of RVMI on inferior myocardial infarction.<bold>Design and methods</bold>: Retrospective study included 310 patients with documented inferior myocardial infarction (with and without RVMI) between January 2013 and January 2014. Data on baseline characteristics, mortality, in-hospital complications: cardiogenic shock and rhythm and conduction disorders was collected.<bold>Results</bold>: In 102 (32.9%) patients with inferior myocardial infarction, RVMI was present and 208 (67.1%) cases were without RVMI involvement. RVMI patients had higher rate of rhythm and conduction disturbances than patients without RVMI involvement: atrioventricular block (OR 3.8, 95% CI 2.0–7.1, <italic>p</italic> &lt; 0.001), atrial fibrillation (OR 1.6, 95% CI 0.9–2.9, <italic>p</italic> = 0.001), also higher incidence of cardiogenic shock (OR 2.6, 95% CI 1.7–3.9, <italic>p</italic> &lt; 0.001). Mortality rates after 24 months were higher in RVMI group (OR 1.8, 95% CI 1.2–3.8, <italic>p</italic> = 0.034). No significant difference was found on in-hospital mortality.<bold>Conclusions</bold>: Right ventricular involvement complicates the long-term mortality and outcomes after inferior myocardial infarction. It is related to a higher incidence of in-hospital complications, especially I–III degree AV block and atrial fibrillation. However, influence on long-term mortality needs further investigation.</abstract>

Right ventricular myocardial infarction (RVMI) accompanies about 30–50% of inferior wall myocardial infarction. RVMI is associated with higher rates of cardiogenic shock, atrioventricular block, atrial fibrillation, increased mortality rates. The topic requires a scientific update, as only a few studies have been made on RVMI during the past decade. We aimed to analyse the impact of RVMI on inferior myocardial infarction.Design and methods: Retrospective study included 310 patients with documented inferior myocardial infarction (with and without RVMI) between January 2013 and January 2014. Data on baseline characteristics, mortality, in-hospital complications: cardiogenic shock and rhythm and conduction disorders was collected.Results: In 102 (32.9%) patients with inferior myocardial infarction, RVMI was present and 208 (67.1%) cases were without RVMI involvement. RVMI patients had higher rate of rhythm and conduction disturbances than patients without RVMI involvement: atrioventricular block (OR 3.8, 95% CI 2.0–7.1, p < 0.001), atrial fibrillation (OR 1.6, 95% CI 0.9–2.9, p = 0.001), also higher incidence of cardiogenic shock (OR 2.6, 95% CI 1.7–3.9, p < 0.001). Mortality rates after 24 months were higher in RVMI group (OR 1.8, 95% CI 1.2–3.8, p = 0.034). No significant difference was found on in-hospital mortality.Conclusions: Right ventricular involvement complicates the long-term mortality and outcomes after inferior myocardial infarction. It is related to a higher incidence of in-hospital complications, especially I–III degree AV block and atrial fibrillation. However, influence on long-term mortality needs further investigation.

Retrospective analysis of complications and survival in patients with acute inferior myocardial infarction accompanied by right ventricular myocardial infarction

Clinic of Cardiovascular Diseases, Institute of Clinical Medicine Faculty of Medicine

Vilnius University Hospital Santaros Klinikos

Seminars in Cardiovascular Medicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Right ventricular myocardial infarction (RVMI) accompanies about 30–50% of inferior wall myocardial infarction. RVMI is associated with higher rates of...

Retrospective analysis of complications and survival in patients with acute inferior myocardial infarction accompanied by right ventricular myocardial infarction

Published Online: Jun 06, 2019

Page range: 9 - 13

Received: Mar 14, 2019

Accepted: Apr 25, 2019

DOI: https://doi.org/10.2478/semcard-2019-0003

Keywords
right myocardial infarction, complications, mortality

© 2019 Gintarė Neverauskaitė-Piliponienė et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Retrospective analysis of complications and survival in patients with acute inferior myocardial infarction accompanied by right ventricular myocardial infarction

Published Online: Jun 06, 2019

Page range: 9 - 13

Received: Mar 14, 2019

Accepted: Apr 25, 2019

DOI: https://doi.org/10.2478/semcard-2019-0003

Keywordsright myocardial infarction, complications, mortality

© 2019 Gintarė Neverauskaitė-Piliponienė et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
right myocardial infarction, complications, mortality