Impact of concurrent right ventricular myocardial infarction on outcomes among patients with left ventricular myocardial infarction
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Updated: Dec 29, 2025

Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs
Published on: April 17, 2021
Huocheng Liao1, Qiuyue Chen1, Lin Liu1
1The Third People Hospital of Huizhou, The Affiliated Hospital of Guangzhou Medical University, Huizhou, Guangdong, China.
Insights
Right ventricular myocardial infarction (RVMI) in patients with left ventricular myocardial infarction (LVMI) is associated with worse outcomes. RVMI increases the risk of in-hospital mortality and acute heart failure, highlighting the importance of considering RV involvement in STEMI patients.
Area of Science:
- Cardiology
- Internal Medicine
- Clinical Research
Background:
- Left ventricular myocardial infarction (LVMI) is a common form of heart attack.
- The impact of concomitant right ventricular myocardial infarction (RVMI) on in-hospital outcomes for LVMI patients is not fully understood.
Purpose of the Study:
- To compare in-hospital outcomes between patients with acute ST-segment elevation myocardial infarction (STEMI) involving the left ventricle (LVMI) with and without concurrent right ventricle (RVMI).
Main Methods:
- A cohort of STEMI patients undergoing primary percutaneous coronary intervention (PCI) was divided into LVMI with and without RVMI groups.
- In-hospital outcomes, demographic data, and clinical markers were compared between the two groups.
Main Results:
- Patients with RVMI exhibited higher rates of diabetes, dyslipidemia, elevated C-reactive protein, B-type natriuretic peptide, and cardiac troponin-I.
- RVMI was associated with lower left and right ventricular ejection fractions and higher mean pulmonary artery pressure.
- Patients with RVMI had significantly higher odds of in-hospital all-cause mortality (4.1% vs 1.0%) and new-onset acute heart failure (3.4% vs 1.0%).
- After adjustment, LVMI with RVMI remained independently associated with composite adverse outcomes (OR 1.66; 95% CI 1.39-2.04).
Conclusions:
- Concomitant RVMI in patients with LVMI is associated with increased in-hospital complications, including higher mortality and acute heart failure.
- Early recognition and management of RVMI in STEMI patients are crucial for improving patient outcomes.
Abstract:
To compare in-hospital outcomes between left ventricular myocardial infarction (LVMI) patients with and without right ventricular myocardial infarction (RVMI). Patients with acute ST-segment elevation MI (STEMI) undergoing primary percutaneous coronary intervention (PCI) were enrolled and divided into LVMI with and without RVMI groups. Between-group differences and in-hospital outcomes were compared. Compared to patients without RVMI, patients with RVMI were more likely to be male, have higher body mass index, serum levels of C-reactive protein (8.9 ± 2.4 vs 6.2 ± 2.1 mg/dL), B-type natriuretic peptide (1295 ± 340 vs 872 ± 166 pg/mL) and cardiac troponin-I (8.6 ± 2.9 vs 5.2 ± 2.1 ng/mL), and have diabetes (36.3% vs 3.4%) and dyslipidemia (53.4% vs 48.1%). Patients with RVMI had lower left and right ventricular ejection fraction (50.5 ± 5.6% vs 53.4 ± 3.8% and 33.6 ± 2.9% vs 45.7 ± 2.0%), but had higher mean pulmonary artery pressure (30.6 ± 3.3 vs 23.8 ± 3.1 mm Hg). Compared to patients without RVMI, patients with RVMI had higher odds of in-hospital all-cause mortality (4.1% vs 1.0%) and new onset acute heart failure (3.4% vs 1.0%). After adjusted for confounding factors, LVMI with RVMI remained independently associated with composite outcomes, with odds ratio 1.66 (95% confidence interval 1.39-2.04). Compared to isolated LVMI patients, those with concomitant RVMI have higher odds of in-hospital complications, particularly all-cause mortality and new onset acute heart failure.
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