Hemodynamic Assessment in Acute Decompensated Heart Failure
Hemodynamic Assessment Throughout Diuretic Treatment in Acute Decompensated Heart Failure
연구 개요
상세 설명
This study will assess the ability of a novel optical measurement system to determine changes in the hemodynamic status of heart failure patients admitted to the hospital with a primary diagnosis of acute decompensated heart failure. Patients will be measured with both the novel measurement system and reference devices that are FDA-cleared for hemodynamic measurements. The measurements from the novel system will be compared to reference variables describing hemodynamic and congestive status, including stroke volume, central venous pressure, and serum levels of NT-proBNP.
All patients enrolled in the study will first provide written informed consent to participate and then the research coordinator will check that the subject meets all study inclusion criteria and does not meet any of the study exclusion criteria. Enrolled subjects will undergo up to six (6) hemodynamic assessment sessions lasting less than 90 minutes each over the course of their hospitalization. There will be at least eight (8) hours between assessment sessions.
Each assessment session includes recording of the subject's weight, measurements with the reference devices, and measurements with the novel optical system. During the session, the subject will be assessed in the supine, sitting, and standing positions. NT-proBNP measurements will be done at the start of study participation and the end. A market research questionnaire will be administered to the subject following the first measurement session.
연구 유형
등록 (실제)
연락처 및 위치
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
설명
Inclusion Criteria:
- Age ≥ 18 years
- Admission to the hospital with a primary diagnosis of acute decompensated heart failure
- Treated with or planned treatment with intravenous diuretics
Volume overload, as indicated by at least one of the following clinical signs:
- Peripheral edema
- Pulmonary edema on physical examination
- Pleural effusions on chest x-ray
- Jugular venous distension on physical examination
- CVP > 10 cmH2O
- Presence of third heart sound
- Able to understand study procedures, agree to participate in the study program and voluntarily provide written informed consent
Exclusion Criteria:
- Inability or refusal to sign the Subject Informed Consent
- Age > 80 years
- Body mass index (BMI) > 40
- Planned mechanical ventilation during hospitalization
- Presence of left ventricular assist device (LVAD)
- Dialysis
- Pregnancy. All women of childbearing potential must have a negative pregnancy test before enrollment.
- Parenteral diuretic or other medical treatment for ADHF already administered for more than 12 hours prior to enrollment
- Skin damage to the optical sampling sites (fingers and dorsal hand), to include tattoos, scars, cuts, or burns extending over more than 30% of the visible tissue
- Compromised superficial hand veins or proximal venous stenosis
- Intravenous lines connected to both arms
- Inability to stand with support, if needed, for 4 minutes
- Inability to place hand in the venous imaging enclosure due to forearm, elbow, or shoulder injuries, or other physical constraints
- Inability to wear fingertip or ring sensors on three fingers (of either hand) due to missing fingers, injured fingers, or other physical constraints
- Persons in police custody or prisoners
- Major medical or psychiatric condition that would interfere with the ability to complete the study
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 관찰 모델: 보병대
- 시간 관점: 단면
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Accuracy of Estimated Changes in Stroke Volume
기간: Retrospective up to 6 months after study completion
|
Comparison of Stroke Volume Measurement (units of ml) from the optical measurement system with paired Stroke Volume Measurement (ml) from the reference device.
Accuracy will be measured in percentage error and Bland-Altman limits of agreement.
|
Retrospective up to 6 months after study completion
|
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Accuracy of Central Venous Pressure Measurement
기간: Retrospective up to 6 months after study completion
|
Comparison of Central Venous Pressure Measurement (units of cmH2O) from the optical measurement system with paired Central Venous Pressure Measurement (cmH2O) from the reference device.
Accuracy will be measured in percentage error and Bland-Altman limits of agreement.
|
Retrospective up to 6 months after study completion
|
공동 작업자 및 조사자
수사관
- 수석 연구원: Elena Allen, PhD, Rodin Scientific
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
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
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