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Updated: Jan 20, 2026

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
Published on: October 20, 2016
Subclinical myocardial disease in patients with primary hyperoxaluria and preserved left ventricular ejection
Ruth Lagies1, Floris E A Udink Ten Cate2,3, Markus Feldkötter4
1Department of Pediatric Cardiology, Children's Hospital, University of Bonn, Adenauerallee 119, 53113, Bonn, Germany.
Insights
Subclinical myocardial disease is present early in primary hyperoxaluria (PH) patients, even with preserved heart function. Strain imaging detects this early cardiac dysfunction, suggesting revised screening recommendations for PH patients.
Area of Science:
- Cardiology
- Nephrology
- Medical Imaging
Background:
- Primary hyperoxaluria (PH) is a genetic disorder causing chronic kidney disease (CKD) and systemic oxalate deposition.
- Myocardial dysfunction may occur early in PH, but this has not been previously investigated.
- Early detection of cardiac involvement in PH is crucial for timely intervention.
Purpose of the Study:
- To investigate subclinical myocardial disease in asymptomatic primary hyperoxaluria patients using 2D speckle tracking echocardiography (2D-STE).
- To assess if 2D-STE can detect early cardiac dysfunction before overt symptoms manifest.
Main Methods:
- A prospective study involving pediatric and adolescent PH patients with preserved LV ejection fraction (EF) and no renal replacement therapy.
- Conventional echocardiography and 2D-STE were performed to measure global (GLS) and segmental longitudinal strain (LS).
- Data were compared to age- and gender-matched controls, with Z-scores calculated.
Main Results:
- Fifteen PH patients (mean age 14.1 years) showed significantly impaired GLS (-17.1 ± 2.2%) compared to controls (-22.4 ± 1.9%), despite preserved LV EF (63 ± 6%).
- Impaired GLS was primarily due to reduced LS in apical segments and correlated with increased ventricular wall thickness and serum creatinine.
- No correlation was found between GLS and blood pressure.
Conclusions:
- Subclinical myocardial disease is present early in PH patients, even with preserved LV EF and early CKD.
- 2D-STE can detect this early cardiac dysfunction in PH.
- Current screening guidelines for cardiac disease in PH patients may need revision to include those with earlier stages of CKD.
Background:
Primary hyperoxaluria (PH) is characterized by progressive chronic kidney disease (CKD) and systemic oxalate deposition. Myocardial dysfunction might be present early in the course of the disease. However, this hypothesis has not yet been tested in the PH population. Therefore, we aimed to determine whether strain imaging using two-dimensional speckle tracking echocardiography (2D-STE) might detect subclinical myocardial disease in otherwise asymptomatic PH patients.
Methods:
Prospective study of pediatric and adolescent PH patients with preserved LV ejection fraction (LV EF) and without renal replacement therapy. Subjects underwent conventional echocardiography and 2D-STE. Global (GLS) and segmental peak systolic LV longitudinal strain (LS) measurements were obtained. Data were compared with age- and gender-matched controls, and Z-scores were calculated as appropriate.
Results:
Fifteen PH patients (age 14.1 ± 5.9 years; 13/15 in CKD stages 1-2) were studied. Although LV EF was preserved (63 ± 6%) in patients, GLS was significantly impaired (GLS - 17.1 ± 2.2% vs - 22.4 ± 1.9%, p < 0.001). This was mainly due to decreased LS values in the apical segments (p < 0.05). Echocardiographic indices of ventricular wall thickness were significantly increased in patients compared to controls (all p < 0.03). GLS correlated significantly with Z-scores of diastolic interventricular wall thickness (r = - 0.57, p = 0.025) and moderately with serum creatinine levels (r = 0.53, p = 0.044). No correlation was found between GLS and blood pressure measurements.
Conclusions:
Subclinical myocardial disease is already present early in the course of disease in PH patients with preserved LV EF and some degree of renal dysfunction, but without overt systemic oxalosis. Current recommendations to screen only PH patients with advanced CKD for cardiac disease should be revised accordingly.
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