- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 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.
연구 개요
상태
연구 유형
등록 (추정된)
연락처 및 위치
연구 연락처
- 이름: Itshak Amsalem, MD
- 전화번호: +972508229454
- 이메일: itshak1a@gmail.com
참여기준
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
샘플링 방법
연구 인구
설명
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)
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
|---|
|
Adults Undergoing Bariatric Surgery
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Change in intramyocardial fat content assessed by cardiac CT
기간: 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
|
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Correlation coefficient between change in intramyocardial fat and change in diastolic function grade
기간: 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
기간: 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
기간: 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)
기간: 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
기간: 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
기간: 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
|
공동 작업자 및 조사자
스폰서
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- SZMC-0044-26
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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