Related Experiment Video
Updated: Aug 16, 2026

Biventricular Assessment of Cardiac Function and Pressure-Volume Loops by Closed-Chest Catheterization in Mice
Published on: June 15, 2020
Autonomic dysfunction in left ventricular hypertrabeculation/noncompaction
Insights
Left ventricular noncompaction requires further investigation beyond heart rate variability. Comprehensive testing is needed to assess autonomic dysfunction in these patients.
Area of Science:
- Cardiology
- Autonomic Nervous System Function
Background:
- The study by Kawasaki et al. investigated heart rate variability in adult patients with isolated left ventricular noncompaction (LVHT).
- This research prompts further questions regarding the scope of the original investigation and the need for more comprehensive assessments.
Discussion:
- Dilated cardiomyopathy was not investigated in the original study.
- The extent of ECG and Holter-monitoring abnormalities in LVHT patients remains unclear.
- Potential correlations between the extension of LVHT and heart rate variability require further exploration.
Key Insights:
- The original study's findings necessitate a deeper understanding of autonomic dysfunction in LVHT.
- Neurological investigations and assessment for other signs of autonomic dysfunction are crucial.
- Simple Holter-monitoring may be insufficient for a complete evaluation of vegetative activity in LVHT.
Outlook:
- Future research should incorporate broader neurological and autonomic function testing.
- A more holistic approach is needed to understand the pathophysiology of LVHT.
- Further studies are required to establish definitive links between LVHT, autonomic dysfunction, and clinical outcomes.
Abstract:
The findings of Kawasaki et al. [T. Kawasaki, A. Azuma, T. Taniguchi, et al. Heart rate variability in adult patients with isolated left ventricular noncompaction. Int J Cardiol 2005;99:147-150.] raise the following questions: why was dilated cardiomyopathy not investigated? How many of the patients with left ventricular hypertrabeculation/noncompaction (LVHT) showed abnormalities in the resting ECG and in the 24-h-Holter-monitoring? Was there any correlation with extension of LVHT and heart rate variability? Were the patients investigated neurologically and did they show other signs of autonomic dysfunction? To assess vegetative activity in LVHT patients, more comprehensive testing than simply Holter-monitoring is required.
Related Concept Videos
Imbalances in Cardiac Output
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
Mitral Regurgitation I: Introduction
Heart Failure II: Pathophysiology
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy IV: Restrictive Cardiomyopathy

