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Can Vena Cava Ultrasound Guided Volume Repletion Prevent Spinal Induced Significant Hypotension in Elective Patients?

Fluid Overload Clinical Trial

Official title:
Can Vena Cava Ultrasound Guided Volume Repletion Prevent Spinal Induced Significant Hypotension in Elective Surgical Patients? A Randomized, Case Control, Prospective Trial.

Clinical Trial Summary

Aim of this study is to determine whether Inferior Vena Cava analyzed by trans-thoracic echocardiography is an effective method to guide titrated fluid repletion in non critical patients, in order both to decrease post procedural significant hypotension rate and to avoid unnecessary fluid overload in patients undergoing spinal anesthesia for elective surgical procedures

Clinical Trial Description

The setting is standard spinal anesthesia and corresponds to our first arm of the study, used as the control sample and statistical reference. During the induction phase, the patient is fitted with non-invasive blood pressure monitoring, three-lead ECG, pulse-oximetry and peripheral intravenous device. Data and vital signs are recorded and an infusion of crystalloid (NaCl 0.9% or Ringer's acetate) is given during the procedure until the beginning of the operation. Total amount of fluid is also recorded before and after the spinal anesthesia.

In addition to the current clinical standard, for the second arm of the study, a trans-thoracic echocardiography is performed before spinal anesthesia, with the aim of assessing the patient's volume status; the exam is performed to assess size and collapsing of the Inferior Vena Cava during breathing cycle. According to different pre-established parameters, the patient is defined as fluid-responsive or unresponsive. If the patient is not responsive, investigators proceed to spinal anesthesia; otherwise they proceed to administration of crystalloid bolus (500 ml of NaCl 0.9% or Hartmann's solution). The patient may receive another bolus so as to reach a non-responsive pattern for echocardiographic evaluation. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Investigator, Outcomes Assessor), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02271477
Study type Interventional
Source Ente Ospedaliero Cantonale, Bellinzona
Contact
Status Completed
Phase N/A
Start date May 2014
Completion date December 2014
View Details
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