Inferior Wall Myocardial Infarction

IJCS

Original Article

Study of Right Ventricular Strain Imaging in Patients with Acute Inferior Wall Myocardial Infarction in a Tertiary Care Hospital in Eastern India

Pallab Biswas et al. Subhro Chakraborty Biswajit Majumder

Abstract

Background

Right ventricle (RV) involvement in inferior wall myocardial infarction (IWMI) is considered a strong predictor of in-hospital mortality and complications. However, assessment of RV involvement and function remains challenging due to difficulties in chamber visualization.

Objective

This study aimed to assess RV involvement in patients with IWMI using myocardial wall velocity (tissue Doppler imaging) and strain rate parameters with conventional echocardiographic indices, evaluating RV function and its correlations with in-hospital mortality and morbidity.

Methods

An observational study was conducted from May 2020 to April 2021 in 210 patients with IWMI visiting a tertiary care center. For each participant, demographics and clinical characteristics were obtained, and an electrocardiography (ECG) was recorded. Following this, right ventricular global longitudinal strain (RVGLS) and echocardiographic parameters (Tei index, right ventricular fractional area change [RVFAC], and tricuspid annular plane systolic excursion [TAPSE]) were estimated. Chi-square test was performed for differences in outcomes between patients with and without RV dysfunction. Correlation analysis was conducted between RVGLS, ECG, and other echocardiographic parameters. P < 0.05 was considered statistically significant.

Results

Pearson’s correlation analysis between RVGLS and Tei index among patients with IWMI indicated a moderate negative correlation (R = 0.610). Furthermore, RVGLS exhibited a moderate positive correlation with RVFAC (R = 0.635) and TAPSE (R = 0.718). At the cutoff of −16.75, RVGLS predicted RV involvement in patients with 97.0% sensitivity and 68.7% specificity. RVGLS predicted RV dysfunction in 44.8% of the patients in the mortality group.

Conclusion

RVGLS can be used as an alternative measure for predicting RV involvement in patients with IWMI.

Read Full Article

IJCS

Original Article

Feasibility of the Two-Minute Walk Test in Elderly Patients After Acute Myocardial Infarction: A Cross-Sectional Study

André Luiz Lisboa Cordeiro et al. Luiz Anselmo Santos Lucas Oliveira Ana Cristina Almeida … Damaris Alves Hanna Beatriz de Melo Moraes e Silva Fernanda Francisco Souza André Raimundo França Guimarães

Abstract

Background

Pathologies involving the heart are still the main causes of death, and acute myocardial infarction (AMI) is consistently present in this index. The two-minute walk test (2MWT) is ideal for assessing the functional capacity of this patient.

Objective

To describe the feasibility of the 2MWT in older people after AMI.

Methods

This is a cross-sectional study. At hospital discharge, patients were invited to perform the 2MWT. Before starting the test, systolic blood pressure (SBP), diastolic blood pressure (DBP), peripheral oxygen saturation (SpO₂), heart rate (HR) and the Double Product (DP) were checked. After checking the vital signs, the patients were accompanied by an examiner, who was positioned laterally to ensure safety and verbally encouraged during the test; after the completion of the test, all vital signs were reassessed in two moments, at the immediate end and after 20 minutes of rest. ANOVA was used for the comparison of pre and post-test and pre and recovery. A p<0.05 was considered significant.

Results

We evaluated 51 patients, 4 (80%) males with a mean age of 67±8 years. The distance walked on the 2MWT had a mean of 157 ± 22 meters. The SBPmmHg Pre-Test 112±21 vs 131±15 Post-Test (p=0.24) and 119±22 at Recovery (p = 0.34) and HR (bpm) Pre-Test 75±15 vs 89±19 Post-Test (p=0.15) and 79±15 at Recovery (p = 0.59). After a rest, all variables analyzed followed the same pattern, returning to values close to the pre-test moment.

Conclusion

The performance of the 2MWT in the hospital environment presents good feasibility in the evaluation of submaximal capacity in elderly patients after AMI.

Read Full Article

Study of Right Ventricular Strain Imaging in Patients with Acute Inferior Wall Myocardial Infarction in a Tertiary Care Hospital in Eastern India

Abstract

Background

Objective

Methods

Results

Conclusion

Feasibility of the Two-Minute Walk Test in Elderly Patients After Acute Myocardial Infarction: A Cross-Sectional Study

Abstract

Background

Objective

Methods

Results

Conclusion

Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)

Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)