Automated Inferior Vena Cava Collapsibility Index Fluid Responsiveness in Ventilated Patients After Cardiac Surgery.

Hamad Medical Corporation (HMC)

Status

Unknown

Conditions

Cardiac Surgery

ICU

Hemodynamic Monitoring

Treatments

Diagnostic Test: Automated echocardiographic inferior vena cava measurement

Study type

Observational

Funder types

Industry

Identifiers

NCT05283590

MRC-01-21-947

Details and patient eligibility

About

Echocardiographic measurement of inferior vena cava (IVC) collapsibility index (CI) with automated software analyses has been introduced. This study aims to assess the accuracy of IVC-CI (caval index) measurements as well as the ability to track fluid responsiveness (FRes) over time comparing the automated echocardiographic method with the pulse pressure variation (PPV) technique and the manual echocardiographic method in cardiac surgery patients.

Full description

It is expected to have insights about the concordance rate. The automated echocardiographic method of measuring CI method may or may not meet the criteria for interchangeability with the thermodilution technique or the manual echocardiographic method.

Enrollment

50 estimated patients

Sex

All

Ages

18 to 80 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

1. Age more than18 years old. 2. Cardiac surgical patients including (coronary artery bypass graft surgery, valvular surgeries, and aortic dissection surgeries) 3. Need for decision to administer IV fluids (hypotension that require assessment and possible fluid boluses defined as a systolic blood pressure less than 90mmHg. Normotensive patients who require fluid therapy with any other manifestation of low perfusion including tachycardia, low urine output, increased core-peripheral temperature gradient, serial increase in serum lactate, and serial increase in base deficit, and normotensive). The endpoint of fluid resuscitation is return normal blood pressure

Exclusion criteria

-1. Contraindication for fluid administration including acute pulmonary edema. 2. Moderate or more tricuspid valve lesion or pulmonary hypertension (more 50 mmHg) where high central venous pressure is expected 3. Patients on hemodialysis. 4. Patient on intra-aortic balloon pump (IABP) or extracorporeal membrane oxygenation (ECMO) 5. Irregular cardiac rhythm: patients with atrial fibrillation or frequent ectopics are excluded.

Patients with chest open 7. Poor echocardiography window (The images will be stored and analyzed by senior physician within the ICU certified in echocardiography)