Safe limits for aspirate volume under wet liposuction.

Area of Science:

• Plastic Surgery
• Surgical Safety
• Hemodynamics

Background:

• Hypovolemia is a potential hemodynamic complication of liposuction.
• Establishing safe fluid volume limits is crucial for patient safety during liposuction procedures.
• The Advanced Trauma Life Support (ATLS) criteria provide a framework for assessing trauma patients and can be adapted for surgical safety.

Purpose of the Study:

• To determine a safe limit for aspirate volume in wet liposuction.
• To correlate aspirate volume with patient body weight.
• To establish guidelines for preventing hypovolemia based on established trauma care principles.

Main Methods:

• Thirty patients undergoing wet liposuction were monitored noninvasively for 24 hours postoperatively.
• Vital signs (heart rate, blood pressure), urinary output, and respiratory rate were recorded.
• Preoperative and postoperative (1 and 6 hours) hemoglobin, hematocrit, and leukocyte counts were analyzed.

Main Results:

• Aspirate volumes ranged from 2.6% to 6.9% of body weight.
• Postoperative tachycardia and/or hypotension were observed in 15 patients.
• These hemodynamic disturbances were associated with aspirate volumes exceeding 5% of body weight.

Conclusions:

• A safe limit for wet liposuction aspirate volume is proposed at 5% of body weight.
• Adhering to this limit can help avoid hypovolemia and subsequent shock.
• This recommendation is consistent with ATLS guidelines for patient management.