What is the clinical evidence from this study?

Study design: Observational. Population: Hypertrophic cardiomyopathy (n=870). Intervention: Hypertrophic cardiomyopathy vs. Healthy control subjects. Primary outcome: Left ventricular mass index (p=<0.0001).

What does this research mean for the field?

Left ventricular mass index is elevated overall in hypertrophic cardiomyopathy patients compared to healthy controls, but remains within normal limits in approximately 20% of patients, demonstrating that increased left ventricular mass is not required for diagnosis. Novelty: ClaimNovelty.CONTRADICTORY. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

What question did this study set out to answer?

To evaluate the clinical utility, accuracy, and prognostic significance of assessing left ventricular mass using cardiovascular magnetic resonance in patients with hypertrophic cardiomyopathy.

September 4, 2026Journal of the American College of CardiologyOpen Access

Assessment and Significance of Left Ventricular Mass by Cardiovascular Magnetic Resonance in Hypertrophic Cardiomyopathy

Q: What are the key findings of this study?

Left ventricular mass index by cardiovascular magnetic resonance was significantly higher in HCM patients than controls (P<0.0001), yet remained within the normal range in 21% of patients.

Q: What does this research mean for the field?

Left ventricular mass index is elevated overall in hypertrophic cardiomyopathy patients compared to healthy controls, but remains within normal limits in approximately 20% of patients, demonstrating that increased left ventricular mass is not required for diagnosis. Novelty: ClaimNovelty.CONTRADICTORY. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

Q: What question did this study set out to answer?

To evaluate the clinical utility, accuracy, and prognostic significance of assessing left ventricular mass using cardiovascular magnetic resonance in patients with hypertrophic cardiomyopathy.

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Key result

CMR LV mass index is higher in HCM, yet remains normal in 21% of patients.

P<0.0001
n=870

Why the study?

LV mass quantifiable by modern cardiovascular magnetic resonance techniques had not been systematically assessed in hypertrophic cardiomyopathy.

What is the distribution and clinical significance of left ventricular mass measured by cardiovascular magnetic resonance in patients with hypertrophic cardiomyopathy?

Key Points

To evaluate the clinical utility, accuracy, and prognostic significance of assessing left ventricular mass using cardiovascular magnetic resonance in patients with hypertrophic cardiomyopathy.
Application of cardiovascular magnetic resonance (CMR) imaging to quantify left ventricular mass, wall thickness, and myocardial volume.
Comparison of CMR-derived anatomical measurements with conventional echocardiographic parameters to determine diagnostic precision and structural characterization.
Cardiovascular magnetic resonance provides superior accuracy and reproducibility for quantifying total and regional left ventricular mass compared to standard two-dimensional imaging.
Elevated left ventricular mass index correlates with advanced disease severity and serves as an important metric for structural risk stratification in hypertrophic cardiomyopathy.

Study Design

Type

Observational (n=870)

Structured PICO

What is the distribution and clinical significance of left ventricular mass measured by cardiovascular magnetic resonance in patients with hypertrophic cardiomyopathy?

Population

264 patients with hypertrophic cardiomyopathy (mean age 43 years, 25% female) and 606 healthy control subjects, with a mean follow-up of 2.6 years.

Exposure

Measurement of left ventricular (LV) mass by cardiovascular magnetic resonance (CMR)

Comparator

Healthy control subjects

Outcome

Distribution of left ventricular mass index and its relationship to clinical outcomessurrogate

Main Result

p-value: p=<0.0001

Discussion

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Implication

Increased left ventricular mass by CMR is not a requirement for establishing the clinical diagnosis of HCM, as it is normal in about 20% of patients, though it is a sensitive predictor of clinical outcomes.

Cite This Study

Olivotto et al. (2008) conducted an observational in Hypertrophic cardiomyopathy (n=870). Hypertrophic cardiomyopathy vs. Healthy control subjects was evaluated on Left ventricular mass index (p=<0.0001). Left ventricular mass index by cardiovascular magnetic resonance was significantly higher in HCM patients than controls (P<0.0001), yet remained within the normal range in 21% of patients.

synapsesocial.com/papers/6a9ae15a6d42ebad6da74787 https://doi.org/10.1016/j.jacc.2008.04.047

Topics

Hypertrophic cardiomyopathy

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Assessment and Significance of Left Ventricular Mass by Cardiovascular Magnetic Resonance in Hypertrophic Cardiomyopathy

Key Points

Study Design

Structured PICO

Main Result

Discussion

Implication

Cite This Study

Topics

Assessment and Significance of Left Ventricular Mass by Cardiovascular Magnetic Resonance in Hypertrophic Cardiomyopathy

Key Points

Study Design

Structured PICO

Main Result

Discussion

Implication

Cite This Study

Also Consider

Topics

Also Consider