Learning objectives
To understand the pathophysiology of left ventricular hypertrophy (LVH).
To discuss the various magnetic resonance imaging characteristics of LVH which help in prompt diagnosis,
prognostic stratification,
and management.
Background
Introduction:
LVH is one of the commonest pathologies that is dealt in the day to day cardiology setup.
LVH which on ECHO appears just as thickened myocardium either symmetrical or asymmetrical.
MRI plays a vital role in deciphering the various causes of these LVH,
quantification of fibrosis if any,
along with LV morphometry.
MRI has a major role in prognostication and follow up.
Background:
LVH refers toan increasein LV mass,
is a pathophysiological condition which occurs due to primary and secondary extrinsic factors (hypertension,
valvular...
Findings and procedure details
A total of 400 MRI cardiac scans of patients with clinical presentation of LVH were retrospectively reviewed for MR characteristics with clinical and laboratory parameters correlation.
The following cases were observed:
Pressure overload: Hypertension,
subvalvular aortic membrane,
aortic valvular stenosis,
supravalvular aortic stenosis,
coarctation of aorta.
Volume overload: Valvular regurgitation.
Infiltrative cardiomyopathies: Amyloidosis,
Anderson-Fabry disease,
Sarcoidosis.
Non-infiltrative cardiomyopathy: HCM.
Inflammatory cardiomyopathy: Myocarditis,
Endomyocardial fibrosis.
Neoplasm.
Unclassified cardiomyopathy: Left ventricular non-compaction.
Findings:
A.PRESSURE OVERLOAD:
1.HYPERTENSION:
The most common cause for LVH with a prevalence of 36–41%....
Conclusion
Cardiac MRI is vital in the evaluation of LV hypertrophy.
Functional analysis,
morphometry and tissue characterization with LGE patterns are important in diagnosing various causes of LVH.
It is essential for not only diagnosis but for risk stratification and prognostication for better management and follow up.
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Normalized Left Ventricular Systolic and Diastolic Function by Steady State Free Precession Cardiovascular Magnetic Resonance,
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Left ventricular hypertrophy and clinical outcomes in hypertensive patients....