Saline Versus Lactated Ringer's Solution: The SOLAR Fluid Trial

Status Completed

Clinical Trial Summary

Perioperative volumes of saline cause a mild acidosis compared with buffered fluids. On the other hand, saline administration maintains plasma osmolality and better repletes vascular volume which is an important goal of perioperative fluid administration. Currently, there is no convincing evidence that either saline or buffered solutions are preferable. Consequently, both types of fluid remain in common use at the Clinic and worldwide.

There has never been a large trial of perioperative saline and balanced salt solutions comparing the incidence of major complications including acute kidney injury. The investigators primary objective is thus to determine the relative safety of perioperative saline and lactated Ringer's solution. Specifically, the investigators propose to test the:

1. Primary hypothesis that a composite of major in-hospital postoperative complications is lower in patients given lactated Ringer's solution compared to normal saline.

2. Secondary hypothesis that acute kidney injury, measured by AKIN criteria, is lower in patients given lactated Ringer's solution compared to normal saline.

The acquisition cost of saline and lactated Ringer's solutions is similar in the United States. (Curiously, buffered solutions are far more expensive than saline in Great Britain.) But to the extent that one fluid or the other provokes more complications, cost of care may be increased with that fluid selection. Cost may also be increased by the need for additional electrolyte monitoring and electrolyte replacement.

The investigators will therefore secondarily conduct an economic evaluation to determine the relative incremental hospital cost of each fluid. To the extent that one fluid or the other reduces cost (assuming similar complication rates), the Clinic will be able to reduce cost by specifying the appropriate fluid without impairing quality.

Evidence that one fluid or the other causes few complications would be a strong quality indicator that the Clinic should standardize perioperative fluid selection.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Postoperative Complications

Clinical Trial Details

NCT number	NCT02565420
Study type	Interventional
Source	The Cleveland Clinic
Contact
Status	Completed
Phase	N/A
Start date	September 28, 2015
Completion date	January 2019

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.