- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07565610
Changes in Intramyocardial Fat Assessed by Cardiac CT Before and After Bariatric Surgery and Their Relationship With Cardiac Diastolic Function
The goal of this observational study is to learn if weight loss surgery can lower fat inside the heart muscle and improve how the heart relaxes in adults with obesity.
The main questions it aims to answer are:
Does fat inside the heart muscle decrease after weight loss surgery? Does heart relaxation (diastolic function) improve after surgery? Are changes in heart fat linked to changes in weight, body fat, and blood markers?
Participants who are already planning to have weight loss surgery will take part in this study.
Participants will:
Have a heart CT scan to measure fat in the heart muscle before surgery and about 6 months after surgery Have an ultrasound of the heart (echocardiogram) to check how the heart fills and relaxes Have body composition testing to measure fat and muscle Have blood tests, including routine tests and additional markers related to heart function and metabolism
Researchers will compare each participant's results before and after surgery to see if heart fat decreases and if heart function and blood markers improve.
Studienübersicht
Status
Studientyp
Einschreibung (Geschätzt)
Kontakte und Standorte
Studienkontakt
- Name: Itshak Amsalem, MD
- Telefonnummer: +972508229454
- E-Mail: itshak1a@gmail.com
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
- Adults aged 18 years or older
- Scheduled to undergo bariatric surgery for standard clinical indications
- Left ventricular ejection fraction (LVEF) ≥50%
- Able to undergo cardiac computed tomography (CT)
Exclusion Criteria:
- Left ventricular ejection fraction (LVEF) <50%
- Known cardiomyopathies, including sarcoidosis, amyloidosis, or myocarditis
- Significant valvular heart disease
- Contraindication to cardiac CT (e.g., severe renal dysfunction, contrast allergy)
- Presence of intracardiac or cardiac-related foreign material that may interfere with imaging (e.g., prosthetic valves, pacemakers, prior transcatheter devices)
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
|---|
|
Adults Undergoing Bariatric Surgery
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Change in intramyocardial fat content assessed by cardiac CT
Zeitfenster: Baseline to 6 months
|
Change in intramyocardial fat quantified from cardiac computed tomography (CT) between baseline (pre-surgery) and 6 months after bariatric surgery
|
Baseline to 6 months
|
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Correlation coefficient between change in intramyocardial fat and change in diastolic function grade
Zeitfenster: Baseline to 6 months
|
Correlation coefficient (unitless) between change in intramyocardial fat, quantified by cardiac computed tomography (CT) as a percentage of myocardial volume, and change in diastolic function grade assessed by transthoracic echocardiography according to guideline-based criteria
|
Baseline to 6 months
|
|
Change in diastolic function grade
Zeitfenster: Baseline to 6 months
|
Change in diastolic function grade assessed by transthoracic echocardiography according to standard guideline-based criteria (including parameters such as E/e', left atrial volume index, and other measures of left ventricular filling pressures) between baseline and 6 months
|
Baseline to 6 months
|
|
Change in body composition
Zeitfenster: Baseline to 6 months
|
Change in total fat mass and lean body mass assessed by body composition analysis between baseline and 6 months
|
Baseline to 6 months
|
|
Change in N-terminal pro-B-type natriuretic peptide (NT-proBNP)
Zeitfenster: Baseline to 6 months
|
Change in N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentration, measured in pg/mL using standard laboratory assays, between baseline and 6 months
|
Baseline to 6 months
|
|
Change in pericardial fat volume
Zeitfenster: Baseline to 6 months
|
Change in pericardial fat volume quantified from cardiac computed tomography (CT) between baseline (pre-surgery) and 6 months after bariatric surgery
|
Baseline to 6 months
|
|
Correlation coefficient between change in intramyocardial fat and change in body weight
Zeitfenster: Baseline to 6 months
|
Correlation coefficient (unitless) between change in intramyocardial fat, quantified by cardiac CT as a percentage of myocardial volume, and change in body weight measured in kilograms
|
Baseline to 6 months
|
Mitarbeiter und Ermittler
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- SZMC-0044-26
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Beschreibung des IPD-Plans
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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