Validation of Body Composition Ultrasound for Identification of Sarcopenia and Cachexia in Patients With Heart Failure
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 48
- 试验地点
- 1
- 主要终点
- Primary ultrasound endpoint: FFM measured by BodyMetrix ultrasound
研究概览
简要总结
This study aims to determine whether skeletal muscle ultrasound is a useful technique for measuring low muscle mass in patients with heart failure (HF). Muscle wasting and abnormal muscle quality has been identified in patients with advanced HF and may contribute to patients' physical limitations. However assessments of body composition for patients with HF currently rely on the research tool of dual X-ray absorptiometry (DXA) for measurements of skeletal muscle mass, which is limited by cost, use of radiation, and the need for patients to be transported to the DXA scanner for imaging. Therefore this observational study is designed to validate a new approach that allows a safe and portable assessment of body composition.
详细描述
The investigators will be recruiting both healthy subjects without HF, as well as subjects with either HF, a left ventricular assist device (LVAD) or cardiac transplantation. This is an observational study to validate the use of the BodyMetrix BX 2000 Pro ultrasound machine for the assessment of body composition, particularly muscle wasting. The ultrasound device received 501(k) designation from the FDA in 2009 for measurement of localized fat and muscle thickness. Participation will last for only one day, with approximately 2 hours of study activity in total:
- For woman with child-bearing potential, potential participants will be required to undergo a urine pregnancy test prior to DXA imaging.
- The investigators will record participant age, sex, height, weight and heart failure status.
- Muscle ultrasound: investigators will make measurements at 7 positions on the arm, chest wall, and leg (participant's dominant side). Clear ultrasound gel will be applied to the skin, a BodyMetrix ultrasound probe placed against the skin, and the muscle thickness measurement made five times at each position. The gel is then wiped away.
- Whole body dual X-ray absorptiometry (DXA) scan: the DXA scan involves lying on a flat and open scanner for approximately 5 minutes while an X-ray arm passes over the body to form a picture for whole body composition.
- Handgrip strength: this involves the participant squeezing a handheld machine on three occasions in the dominant hand to measure grip strength.
- 5 sit-to-stand test: investigators will time how long it takes for the participant to stand up from a seated position five times to assess lower body strength.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Cohort 1: Healthy volunteers:
- •18+ years
- •No history of heart failure
- •Not pregnant
- •Willing to take a urinary pregnancy test if there is a possibility of pregnancy
- •Able to freely provide informed consent
- •Cohort 2: Participants in our existing left ventricular assist device (LVAD) body composition study (#12026) who consent to undergo skeletal muscle ultrasound the same day as an LVAD body composition study visit that already includes the DXA and handgrip strength procedures:
- •Meet the eligibility criteria outlined in study #12026
- •Cohort 3: Patients with heart failure, an LVAD or heart transplantation
- •18+ years
- •Not pregnant
- •Willing to take a urinary pregnancy test if there is a possibility of pregnancy
排除标准
- •Patients requiring temporary mechanical circulatory support
- •Pregnant women, or women who report there is a possibility they could be pregnant and decline to complete a pregnancy test
研究组 & 干预措施
Healthy volunteers
Adults without HF or prior heart transplantation
干预措施: BodyMetrix body composition ultrasound (Diagnostic Test)
Participants in our existing LVAD body composition study
Currently-enrolled LVAD body composition participants, who chose to participate in this study on the same day as a DXA scan already scheduled for study #12026
干预措施: BodyMetrix body composition ultrasound (Diagnostic Test)
Patients with heart failure, an LVAD or heart transplantation
Any patients with a current diagnosis of HF, with or without an LVAD, or prior HF now status post heart transplantation
干预措施: BodyMetrix body composition ultrasound (Diagnostic Test)
Inpatients with heart failure, LVAD, heart transplantation
Patients with a current diagnosis of HF, with or without an LVAD, or prior HF now status post heart transplantation, currently admitted as inpatients at Tufts Medical Center. The 6/20/2019 protocol update includes these patients who will participate without a DXA scan (which can only be performed as an outpatient).
干预措施: BodyMetrix body composition ultrasound only (Diagnostic Test)
结局指标
主要结局
Primary ultrasound endpoint: FFM measured by BodyMetrix ultrasound
时间窗: On study day 1
This is the muscle mass estimation from the BodyMetrix ultrasound device which the investigators are seeking to validate as a method of body composition assessment
Primary DXA endpoint: fat free mass (FFM) measured by DXA
时间窗: On study day 1
This is the fat free mass calculated by whole-body DXA, which is the gold standard for measuring skeletal muscle mass
次要结局
- Sit-to-stand test(On study day 1)
- Handgrip strength(On study day 1)