Observational Study to Evaluate Peripheral IntraVenous Analysis (PIVA) in Euvolemic, Hypovolemic, and Hypervolemic Emergency Department Patients
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 50
- 试验地点
- 3
- 主要终点
- Association between PIVA measurement and fluid status (net gain vs net loss)
研究概览
简要总结
The overall goal of this multicenter project is to characterize the expected normal range of Peripheral IntraVenous Volume Analysis (PIVA) values during a euvolemic state, and how those ranges may be altered by comorbidities; the relationship between PIVA and intravenous volume administration during resuscitation of infected patients with presumed hypovolemia; and, the relationship between PIVA and volume decreases during diuresis in acute heart failure patients with hypervolemia.
详细描述
The determination of volume status remains a clinical challenge in medicine. Patients may develop hypovolemia (too little fluids in the vascular space) due to conditions such as hemorrhage, dehydration, or infection with vascular leak. Alternatively, patients may become hypervolemic (too much fluids in the vascular space), due to conditions such as heart failure, renal failure, or iatragenic over-resuscitation all of which overwhelm the kidney's ability to regulate intravascular volume status. In clinical practice, clinicians strive to return patients to euvolemia (the "right" volume status) through the administration of intravenous fluids or diuretics which remove fluids to achieve homeostasis. While there are a number of proposed clinical exam findings (e.g. dry mucous membranes or skin turgor), measurements (e.g. central venous pressure), or laboratory tests (e.g. blood urea nitrogen), none are precise or universally accepted as reliable methodologies to assess volume status.
The goal of this study is to perform a prospective observational study on three distinct cohorts during ED presentation to assess the variability and performance of PIVA in tracking volume status.
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
- •Age > 18 years old
- •Assessed as "euvolemic" by treating physician
排除标准
- •History of any type of decreased oral intake or volume loss (e.g. diarrhea, vomiting, etc)
- •History of a fever
- •History of bleeding
- •Any acute illness expected to alter volume
- •Known or suspected pregnancy
- •Active irregular heart rhythm
- •In the opinion of the treating physician, no anticipated intravenous fluid administration
- •History of chronic or end stage renal disease
- •Liver failure
- •History of Acute heart failure
- •Presence of abnormal vital signs (90 < HR < 60; 180 < SBP < 110, respiratory rate > 20, pulse ox < 92% or need for supplemental oxygen, 99.0 < temperature < 96).
- •2 additional group will be included in this euvolemic group
- •Non-elderly patients (age < 50 year) without any comorbid illnesses and
- •Diabetes on medications
- •Hypertension on medications
- •Vascular disease defined by history of peripheral vascular disease, stroke, MI
- •Note: patients that receive >250 cc of IVF will be excluded from analysis.
- •Infection Cohort (Presumed Hypovolemia)
- •Inclusion Criteria:
- •Age > 18 years old
- •An accessible intravenous catheter is in place
- •Known or suspected infection as assessed by the clinical team
- •Intention to admit to the hospital
- •Anticipated administration of intravenous fluids per clinical team
- •Exclusion Criteria:
- •Clinical exam consistent with volume overload
- •Known or suspected pregnancy
- •Patients with a history of chronic renal insufficiency or end-stage renal disease
- •Patients with a history of acute heart failure
- •Acute Heart Failure (Hypervolemic cohort)
- •Inclusion Criteria:
- •Age > 17 years old
- •An accessible intravenous catheter is in place
- •Primary clinical diagnosis of CHF
- •Meet 2 of the three criterion:
- •X-ray diagnosis
- •Elevated bnp from known baseline
- •Clinical diagnosis
- •Received or intent to administer a diuretic agent
- •Intent to admit to the hospital for anticipated > 24 hour period
- •Exclusion Criteria:
- •History of any type of decreased oral intake or volume loss (e.g. diarrhea, vomiting, etc)
- •History of a fever
- •History of bleeding
- •Known or suspected pregnancy
- •Active irregular heart rhythm
- •History of dialysis dependent end stage renal disease
结局指标
主要结局
Association between PIVA measurement and fluid status (net gain vs net loss)
时间窗: Baseline to 6 hours for euvolemic and hypovolemic cohort, and baseline to 72 hours for hypervolemic cohort
Change in fluid status over the first 6 hours as measured by weight and urine output and pressure status from the Edwards transducer
次要结局
- Response to Passive leg raise(For the euvolemic cohort, baseline to 2 hours; For hypovolemic, cohort baseline to 6 hours; for the hypervolemic cohort, baseline up to 72 hours)
- Association between PIVA and non-invasive monitoring responsiveness to passive leg raise(Baseline up to 72 hours)
研究者
Nathan Shapiro
Associate Professor of Emergency Medicine
Beth Israel Deaconess Medical Center