Benefits of Local Anaesthesia with Conscious Sedation (LACS)

Less nausea and vomiting, a smoother recovery

Avoiding general anesthesia can reduce the burden of nausea and vomiting in suitable patients. The American Society of Anesthesiologists describes fewer side effects with sedation than with general anesthesia, although the drugs used, the operation and your own susceptibility all matter. Sedation can still cause nausea.

For a facelift, this is not just about comfort. Retching and vomiting can raise pressure and strain recently treated tissues. Controlling nausea, pain and blood pressure is therefore part of reducing the risk of postoperative bleeding.

Why blood-pressure transitions matter for bleeding

A hematoma is a collection of blood beneath the skin. If blood pressure is unusually low during surgery, a small vessel may not appear to bleed even though it has not been fully sealed. As pressure returns to its usual level afterward, that vessel can start bleeding. An evidence-based review, “Methods for Minimizing Bleeding in Facelift Surgery,” describes this masking effect and the possibility of rebound bleeding.

General anesthesia can also involve blood-pressure elevations around emergence—the period of waking up—including coughing or straining as a breathing tube is removed. Shivering, pain, nausea and vomiting can add further pressure fluctuations and reveal or provoke bleeding. This is why a quiet operative field at low pressure is not, by itself, assurance against a later hematoma.

With LACS, my aim is to avoid some of those general-anesthesia recovery transitions and maintain more even conditions during and after surgery. This is a reason for my preference, not a promise that blood pressure never changes with sedation.

Temperature, shivering and comfort

General anesthesia can interfere with temperature regulation; patients may become cold and shiver as they recover. Shivering is uncomfortable and can increase the body’s workload and contribute to blood-pressure changes. It is not simply a consequence of muscle paralysis.

With conscious sedation, a responsive patient can tell the team about feeling cold, hot or uncomfortable. I regard that communication, and avoiding some of the temperature disturbances associated with general anesthesia, as practical advantages of LACS. Temperature still needs attention: sedation does not rule out cooling or shivering, and comparative effects depend on the anesthetic regimen.

Urinary retention deserves consideration

After surgery, some patients temporarily have difficulty emptying a full bladder. Anesthetic and pain medicines can interfere with bladder signals and emptying; this does not mean that everyone’s bladder is “paralyzed.” Men with an enlarged prostate or previous urinary difficulties may be particularly susceptible.

A painfully full bladder can add distress and raise blood pressure, and may require a catheter to drain it. Avoiding general anesthesia may avoid one contributor, but LACS does not eliminate urinary retention. Tell the team about previous problems so these can be considered in your plan.

The evidence and my tissue-glue technique

“Evidence of Hematoma Prevention After Facelift,” published in the February 2024 issue of the Aesthetic Surgery Journal, reviewed 45 articles. It identified local rather than general anesthesia, management of pain, nausea and hypertension, and fibrin tissue sealants among measures that reduced hematoma formation in the reviewed literature. Those findings support a combined approach to prevention; they do not measure the results of my particular LACS regimen.

I use tissue glue to help reduce bleeding and support even skin redraping. My goal is to distribute support rather than concentrate tension at individual points, helping me avoid focal pulling and distortion. This describes my technique and its aims, not an independently established comparative result for my patients. Sealant studies vary, and I am not claiming a particular percentage reduction in hematomas or a guaranteed cosmetic outcome.

Choosing LACS for your procedure

LACS gives suitable patients in my practice an alternative to general anesthesia, not a claim that other practices all use the same method. Your health, the extent of surgery and your preferences determine the plan. General anesthesia remains appropriate for some patients and operations.

Sedation requires trained monitoring and the ability to manage breathing or other complications. Ask who will provide and monitor it. Arrange an appropriate adult escort, follow the team’s driving restrictions and do not assume being awake means you can drive. Discharge depends on your recovery and clinical criteria, not a guaranteed time. No anesthesia technique removes all risk.