Cardiac Function, Congestive Heart Failure, Mechanical Ventilation, Using Nesiritide, Venous Return
Conditions
Keywords
Congestive Heart Failure, Nesiritide
Brief summary
The congestive heart failure is a common disease among patients who receive cardiac surgery and may lead to prolonged ventilation support. Nesiritide was a potential therapy for congestive heart failure. This study aimed to compare the Nesiritide induced hemodynamical status changes among congestive heart failure patients with invasive ventilation support.
Interventions
The attending physicans decide whether to use Nesiritide for congestive heart failure patients. Only patients who will use Nesiritide are enrolled.
Sponsors
Study design
Eligibility
Inclusion criteria
* Age≥18 years; * Congestive Heart Failure; * With mechanical ventilation; * With hemodynamic monitoring devices; * The physicians made the decision of using Nesiritide.
Exclusion criteria
* Unstable hemodynamic status; * Severe renal dysfunction.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes of cardiac output | Before and 30-min after using a standard dose of Nesiritide | Changes of cardiac output measured by hemodynamical monitoring tools |
| Changes of systemic filling pressure | Before and 30-min after using a standard dose of Nesiritide | Changes of the intercept of regression line of paired VR-RAP points at different PEEP levels. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes of cardiac function curve | Before and 30-min after using a standard dose of Nesiritide | Using body position changes (±15°) to simulate the change of preload, and therefore depicte the Starling curve |
| Changes of venous return curve | Before and 30-min after using a standard dose of Nesiritide | Changes of venous return curve depicted by different PEEP setting |
Countries
China