📖 Pattern of Regional Wall Motion Abnormality in NSTEMI Patients: A Clinical Study from Kolkata
Presenter:
Biswajit
Majumder
Title: A Study On Pattern of
Regional Wall Motion Abnormality In NSTEMI Patients And Its Correlation With
Electrocardiographic Findings In A Tertiary Care Hospital In Kolkata
Non–ST-elevation myocardial infarction (NSTEMI) remains one of the most
frequently encountered acute coronary syndromes in clinical cardiology. Unlike
STEMI, NSTEMI often presents with subtle or variable electrocardiographic
changes, making early diagnosis and localization of myocardial injury more
challenging.
In an important observational
study conducted at R.G. Kar Medical College
& Hospital, senior interventional cardiologist Biswajit Majumder
explored the pattern of regional wall
motion abnormalities (RWMA) in NSTEMI patients and analyzed how these findings
correlate with electrocardiographic (ECG) changes.
🔬
Why This Study Matters
While ECG remains the first-line
diagnostic tool in suspected acute coronary syndrome, it does not always
provide accurate localization in NSTEMI cases. Echocardiography, on the other
hand, can detect regional wall motion abnormalities that reflect ischemic
myocardial segments.
Understanding whether ECG findings
truly correspond to echocardiographic abnormalities can significantly influence
early risk stratification and management strategies.
🏥
Study Design & Population
This cross-sectional observational
study included:
·
158
consecutive NSTEMI patients
·
Study
duration: February 2023 to August 2024
·
Conducted
in a tertiary care teaching hospital in Kolkata
·
Comprehensive
analysis of:
o
Clinical
characteristics
o
ECG
findings
o
Transthoracic
echocardiography results
Patients represented a diverse
demographic profile, though most were between 61–80 years of age, with a clear male
predominance. A large proportion belonged to urban backgrounds and had
associated cardiovascular risk factors such as hypertension, diabetes, and
substance use.
📊
Key Clinical Findings
1️⃣ Prevalence
of RWMA
Regional wall motion abnormality
was observed in 39.9% of
NSTEMI patients, indicating that nearly two out of five
individuals demonstrated echocardiographic evidence of myocardial dysfunction.
2️⃣ Most
Common Wall Involvement
·
Inferior
wall hypokinesia was
the most frequently detected abnormality.
·
This
was followed by anterior and anterolateral wall involvement.
3️⃣ ECG Observations
·
A
considerable number of patients had no
significant ST–T changes on ECG.
·
Among
those with abnormalities, ST-segment
depression in leads V1–V6 was the most common pattern.
4️⃣
Correlation Analysis
Despite these findings,
statistical evaluation showed no
significant correlation between ECG changes and the presence or
anatomical distribution of RWMA on echocardiography.
🩺 Clinical Implications
The study highlights a critical
insight for practicing clinicians:
ECG alone may not reliably predict
myocardial localization in NSTEMI patients.
This reinforces the need for a multimodal diagnostic approach,
combining clinical evaluation, cardiac biomarkers, ECG, and echocardiography to
ensure accurate assessment.
Early echocardiographic evaluation
can:
·
Improve
risk stratification
·
Identify
patients with significant myocardial dysfunction
·
Guide
timely interventional decisions
👨⚕️ About the Researcher
Dr. Biswajit Majumder
is a distinguished interventional
cardiologist with over 20 years of experience in cardiovascular medicine. He
completed his MBBS, MD (Medicine), and DM (Cardiology) from the University of North Bengal and University of Calcutta.
Currently serving as Professor and
Head of Cardiology at R.G. Kar Medical College, Kolkata, he has performed more
than 15,000 coronary
angiographies and 1,500
angioplasties. He is also a Fellow of major international
cardiovascular societies and has published widely in national and global
peer-reviewed journals.
This study adds valuable data to
the growing body of literature on NSTEMI diagnostics. By demonstrating the
limited predictive value of ECG for RWMA localization, it emphasizes the
indispensable role of echocardiography in modern cardiology practice.
As cardiovascular care continues
to evolve, such evidence-based insights help refine clinical pathways and
improve patient outcomes.
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