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Updated: Jul 9, 2026

Isolation and Functional Characterization of Human Ventricular Cardiomyocytes from Fresh Surgical Samples
Published on: April 21, 2014
[Evolution of the surgical strategy in hypertrophic cardiomyopathy: case studies of eight patients]
Thomas Joudinaud1, Erwan Flecher, Ulrich Hvass
1Service de chirurgie cardiaque, hôpital Bichat, 46, rue Henri-Huchard, 75018 Paris, France. thomas.joudinaud@bch.aphp.fr <thomas.joudinaud@bch.aphp.fr>
Insights
Surgical treatment significantly reduces left ventricular outflow tract gradients in hypertrophic cardiomyopathy patients. This approach offers a vital option for managing obstructive hypertrophic cardiomyopathy, especially when other treatments fail.
Area of Science:
- Cardiology
- Cardiac Surgery
- Inherited Cardiovascular Diseases
Background:
- Hypertrophic cardiomyopathy (HCM) is an inherited condition causing left ventricular hypertrophy, diastolic dysfunction, and arrhythmias, posing a risk of sudden cardiac death.
- Surgical strategies for HCM have evolved, particularly for patients with left ventricular outflow tract (LVOT) gradients.
Observation:
- A retrospective study analyzed eight operated HCM patients.
- Pre- and post-operative echocardiographic data were assessed, with follow-up via cardiologist contact.
Findings:
- Patients were categorized into groups based on LVOT obstruction, associated lesions, endocarditis, or post-operative complications.
- A significant reduction in mean LVOT gradient was observed post-surgery and maintained at four years.
Implications:
- Surgical management of obstructive HCM is a key option for young patients, especially if septal ablation fails or other surgical issues are present.
- Dual-chamber pacing remains indicated for elderly patients with HCM.
Introduction:
Hypertrophic cardiomyopathy is an inherited disease characterized by a left ventricular hypertrophy, a diastolic dysfunction and rhythm troubles with risk of sudden death. There was an evolution in the surgical strategy to treat the patients who present a left ventricular outflow tract gradient.
Materials And Methods:
A retrospective study was conducted: We selected eight cases who presented an hypertrophic cardiomyopathy and operated on. Pre and post operative echocardiographic data were analysed. Follow up was obtained by call or mail to the cardiologist.
Results:
The patients were classified in four groups: isolated left ventricular outflow tract obstruction, left ventricular outflow tract obstruction and associated lesions, obstructive hypertrophic cardiomyopathy and endocarditis, post operative complications of the hypertrophic cardiomyopathy surgery. We observed a significant decrease of the left ventricular outflow tract mean gradient in the post operative period and at four years.
Conclusion:
Surgical management of obstructive hypertrophic cardiomyopathy remain an important option in young patients, in case of failure of the ethanol septal ablation or in patients who present other surgical lesions. The dual chamber stimulation remain indicated in old patients.
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