Preoperative saline loading improves outcome after elective, noncardiac surgical procedures

Area of Science:

• Anesthesiology
• Critical Care Medicine
• Surgical Outcomes

Background:

• Elderly patients with multiple comorbidities undergoing noncardiac surgery face variable risks of postoperative complications.
• Optimizing preoperative physiological status is crucial for mitigating surgical risks.

Purpose of the Study:

• To investigate whether preoperative plasma volume expansion with normal saline improves outcomes in high-risk surgical patients.
• To assess the impact of saline loading on intraoperative stability and postoperative complications.

Main Methods:

• A prospective study involving 306 patients undergoing elective noncardiac surgery.
• Hemodynamic responses were monitored following a 2 L normal saline infusion over 2 hours.
• Intraoperative stability and postoperative outcomes were compared to a control group without saline infusion.

Main Results:

• Eighty-eight percent of patients achieved positive blood volume expansion.
• A significant reduction in postoperative complications (52% to 28%) was observed, particularly pulmonary complications in aortic reconstructive surgery patients.
• Improved intraoperative cardiovascular stability, reduced need for vasopressors, and lower intraoperative fluid administration were noted.

Conclusions:

• Preoperative saline loading is associated with improved outcomes in high-risk elderly patients undergoing elective noncardiac surgery.
• Fluid expansion strategies can enhance patient safety and reduce surgical morbidity.