Anesthesia plays an important role in surgery, whether administered locally or systemically. However, not all forms of anesthesia carry the same degree of risk or physiologic impact.
For patients considering elective plastic surgery, understanding the potential risks associated with general anesthesia and intravenous (IV) sedation is an important part in the decision-making process. While some procedures may require the patient to be fully unconscious, many cosmetic and aesthetic surgeries can be safely performed using local anesthesia alone.
Awake plastic surgery offers an alternative approach, allowing patients to undergo a range of cosmetic procedures while remaining awake and comfortable, helping them achieve their aesthetic goals without the need for systemic anesthetics—avoiding both general anesthesia and IV sedation (also known as twilight or conscious sedation).
The Risks Associated with General Anesthesia
General anesthesia affects the entire body and central nervous system. Because of this, it carries broader physiologic effects throughout the body compared to localized anesthesia.
Potential complications associated with general anesthesia include:
- Respiratory complications
- Heart damage (heart attack, myocardial ischemia)
- Blood pressure fluctuations during and after surgery
- Increased risk of blood clots
- Postoperative nausea and vomiting, grogginess, brain fog, and prolonged recovery
- Heightened nerve sensitivity and discomfort following surgery
When placed under general anesthesia, blood pressure is often lowered due to the general anesthesia’s effect on blood vessels and cardiac function. Hypotension (low blood pressure) decreases blood flow to the brain and organs including the heart. As patients awaken, blood pressure will rise. These fluctuations in blood pressure can increase the likelihood of postoperative bleeding, which may delay recovery and affect healing and outcomes. Additionally, research suggests that hypotension may influence cellular stress responses and gene expression pathways, including changes in mRNA, microRNA (involved with gene modulation), and long non-coding RNA (involved with transcription of genes).
Recovery after general anesthesia can also involve systemic fatigue as the body readjusts after being fully sedated.
While general anesthesia remains appropriate for many procedures, these considerations are especially relevant for elective procedures where alternatives may be available.
IV Sedation: Additional Considerations
IV sedation (also referred to as twilight sedation, conscious sedation, or monitored anesthesia care [MAC]) is often perceived as lighter and less intensive than general anesthesia; however, it still carries important risks.
Because IV sedation can suppress breathing drive, patients may experience oxygen desaturation (deoxygenation) during surgery, which may require airway support or supplemental oxygen. Other potential effects include:
- Respiratory depression
- Blood pressure instability
- Prolonged grogginess
- Nausea
- Neurologic damage
Although the depth of sedation with IV sedation can vary depending on the medications used and individual response, IV sedation still affects the body systemically and the central nervous system—much like general anesthesia.
Cognitive Effects and Dementia Risk
Medical research has explored potential associations between exposure to systemic anesthesia—general anesthesia and IV sedation—and cognitive changes. Large population-based studies have reported an increased risk of dementia among individuals following exposure to general anesthesia or IV sedation, particularly with repeated or prolonged exposure.
These findings have raised important questions about the neurologic impact of systemic anesthetic medications (general anesthesia, IV sedation) and are contributing to the growing interest in alternatives such as awake surgery performed under local anesthesia.
Both general anesthesia and IV sedation may also be associated with postoperative cognitive effects, including:
- Memory loss
- Difficulty concentrating
- Mental fog following surgery
The cognitive effects can be temporary, but research has also linked systemic anesthetic exposure to long-term cognitive decline.
These concerns are increasingly influencing how patients make decisions about elective surgery.
The Awake Surgery Difference
True awake plastic surgery is performed under local anesthesia alone, without general anesthesia or IV sedation.
Rather than placing the entire body to sleep or sedating it, localized anesthetic numbs only the surgical area. Therefore, patients remain awake, engaged, and responsive, allowing for a more controlled surgical experience while maintaining patient comfort.
Benefits of awake plastic surgery may include:
- Avoids exposure to general anesthesia and IV sedation
- Maintains a patient’s natural physiologic function (normal body function)
- Associated with smoother recovery and healing
- Allows dynamic real-time surgical assessment for improved precision and natural results
- Enables a more controlled, personalized surgical experience
- Blood pressure remains more stable during awake procedures
- Patients can view surgical changes in real time during the procedure
An additional advantage is the patient’s ability to make subtle movements or adjust positioning when directed by the plastic surgeon. This real-time interaction and adjustments allow for enhanced precision and symmetry, contributing to more natural-looking results. Patients can even observe their results during surgery as refinements are made.
For plastic surgeons experienced in awake techniques, this approach can elevate the artistry of the procedure. During awake surgery, Dr. Kenneth Kim is able to assess results dynamically from multiple angles and positions, fine-tuning outcomes to better align with each patient’s unique anatomy and aesthetic goals.
Procedures Dr. Kim Performs Awake Under Local Anesthesia
At Dr. Kenneth Kim Plastic Surgery, Dr. Kenneth Kim performs a wide range of plastic surgery procedures using awake surgery under local anesthesia, including:
- Awake Facelift and Neck Lift
- Awake Rhinoplasty
- Awake Upper and Lower Blepharoplasty
- Awake Forehead / Brow Lift
- Awake Sub-brow Lift
- Awake Lip Lift
- Awake Breast Augmentation
- Awake Breast Lift
- Awake Breast Reduction
- Awake Tummy Tuck (Abdominoplasty)
- Awake Liposuction
His awake approach allows patients to undergo many cosmetic procedures without exposure to general anesthesia or IV sedation. Dr. Kim is a board-certified plastic surgeon with extensive experience performing true awake procedures using specialized local anesthesia techniques.
Choosing the Right Option for You
When considering plastic surgery, patients should have a clear and comprehensive understanding of their anesthesia options. Making an informed decision means carefully considering the benefits and potential risks of general anesthesia and IV sedation, especially for elective procedures. The right approach depends on your individual comfort level, medical history, personal priorities (including safety), and the specific procedure you are considering.
A personalized consultation with Dr. Kim provides the opportunity to discuss your goals, review anesthesia options in detail, and develop a surgical plan tailored to your needs. During your consultation, he will answer your questions, explain your options in detail, and help guide you toward a safe, informed decision that supports your well-being and aesthetic goals. Reach out today to learn about the awake plastic surgery experience.
