Your Guide to Safer Surgery: Anesthesia Red Flags to Know

Your Guide to Safer Surgery: Anesthesia Red Flags to Know

She came to see me about something else entirely.

Elena was in her early fifties, sharp and deliberate in the way she approached everything — her career, her nutrition, her health. She had been a patient of mine for about two years, and we had done meaningful work together on her hormonal health and cognitive performance. But on this particular afternoon, she sat down with a different kind of weight in her expression.

She was scheduled for a routine elective procedure in six weeks. Her surgeon was excellent, the facility well-regarded. Everything looked fine on paper. But she had recently read something that unsettled her — a passing reference to anesthesia complications in a longevity article — and she could not shake the feeling that there were questions she did not yet know to ask.

That conversation became one of the most valuable we have ever had.

Because she was right. There are questions most patients never think to ask. And in the space between what your surgical team covers and what you do not know to raise, there is a great deal of information that could meaningfully change your experience — and your outcome.

Why Anesthesia Deserves More of Your Attention

We tend to think of surgery as the main event and anesthesia as the supporting act. The anesthesiologist appears briefly before you go under, and when you wake up, their role feels like a footnote. But the truth is more nuanced.

Anesthesia is a profound physiological intervention. It temporarily alters consciousness, suppresses autonomic regulation, affects cardiovascular and respiratory function, and influences neurological recovery. For most healthy adults undergoing elective procedures, the risks are low and the process is routine. But for certain patients — particularly those navigating hormonal complexity, metabolic variation, a history of chronic illness, or specific genetic patterns — the picture deserves a closer look.

Precision medicine has taught me to approach surgery the same way I approach everything else: as an individual experience shaped by individual biology. What is uneventful for one patient may be genuinely challenging for another, and understanding your particular risk profile before you walk into an operating room is one of the most empowering things you can do.

The Red Flag I Hear About Most: Postoperative Cognitive Changes

One of the most important — and underappreciated — concerns in surgical medicine is postoperative cognitive dysfunction, commonly referred to as POCD. This is not a rare or obscure phenomenon. It refers to the decline in memory, concentration, and cognitive processing that some patients experience in the days, weeks, or even months following surgery and anesthesia.

In younger, otherwise healthy patients, these effects are usually transient. But in patients over fifty, in those with early signs of cognitive vulnerability, or in those with specific genetic variants affecting neuroinflammatory pathways — such as the APOE4 allele — the risk profile changes meaningfully.

This is not a reason to avoid necessary surgery. It is a reason to have a more sophisticated conversation about it. If you know your cognitive risk profile, your anesthesiologist and I can work together to advocate for approaches that are likely to be gentler on the brain — including specific anesthetic agent choices, depth-of-anesthesia monitoring, and thoughtful postoperative support.

If you have never had your cognitive genetic risk assessed and you are planning a surgical procedure, this is exactly the kind of context that precision medicine exists to provide.

Hormonal and Metabolic Red Flags

Patients who are managing hormonal complexity — whether that is thyroid disease, adrenal insufficiency, insulin resistance, or are in active hormone replacement therapy — carry considerations into the operating room that a standard pre-surgical workup may not fully capture.

Thyroid status matters more than most surgical teams discuss. Both hypothyroidism and hyperthyroidism affect cardiovascular stability under anesthesia. Poorly controlled thyroid disease can significantly alter how the body responds to anesthetic agents and how the heart behaves during periods of physiological stress. If you are on thyroid medication, your levels should be optimized well before any elective procedure — not simply checked, but reviewed with clinical judgment and adjusted if necessary.

Adrenal considerations are often overlooked entirely. Patients on long-term corticosteroids, or those with known or suspected adrenal insufficiency, are at risk for an adrenal crisis during surgical stress. This is a serious and potentially life-threatening complication that is entirely preventable with proper planning. If there is any history of adrenal vulnerability in your record, your surgical and anesthesia team must be clearly informed — and a steroid stress dosing protocol should be in place before you enter the operating room.

Insulin resistance and blood sugar instability create real perioperative risk. The physiological stress of surgery triggers glucose fluctuations that are more pronounced in metabolically vulnerable patients. Poor glycemic control around the time of surgery is associated with impaired wound healing, higher infection risk, and longer recovery. In my patients who are navigating metabolic complexity, we address this proactively — not as an afterthought.

Medication and Supplement Interactions: The Conversation That Does Not Always Happen

One of the most consistently underreported areas of surgical risk involves the medications and supplements a patient is taking. The standard intake form asks about prescription drugs, but the conversation often ends there — and that is a meaningful gap.

Certain supplements commonly used by health-conscious patients can significantly affect bleeding risk, cardiovascular stability, or anesthetic response. Fish oil, vitamin E, ginkgo biloba, garlic, and high-dose ginger all have anticoagulant properties. St. John's Wort can interact with anesthetic agents and other perioperative medications in ways that are difficult to predict. Melatonin, frequently used for sleep, may potentiate sedative effects.

This is not about avoiding these supplements in general — many are genuinely valuable and evidence-based. It is about timing. Most of these should be paused in the days or weeks before surgery, under the guidance of your physician. The challenge is that many patients assume their surgical team will ask, and many surgical teams assume the patient will volunteer the information. The information often falls through the gap entirely.

In my practice, pre-surgical visits are an opportunity to review everything a patient is taking — prescription, supplement, and functional — and create a clear protocol for what to continue, what to pause, and when to restart. It is one of the most practical things I can do to support a safer surgical experience.

Anesthesia Awareness: Rare, but Worth Understanding

Anesthesia awareness — the experience of becoming conscious during a procedure while still unable to move — is statistically uncommon, occurring in roughly one to two cases per thousand. But it is not zero, and for the patients who experience it, the psychological impact can be significant and lasting.

Certain factors increase the risk: cardiac surgery, emergency procedures, specific patient populations, and in some cases, individual metabolic variation in how anesthetic agents are processed. Pharmacogenomic differences — the same genetic variation that determines how quickly your liver metabolizes certain medications — can influence how deeply and consistently anesthesia takes effect.

This is an area where knowing something about your own medication metabolism can be genuinely useful. If you have had pharmacogenomic testing and carry variants associated with rapid drug metabolism, this is a conversation worth having with your anesthesiologist before your procedure. It is the kind of specific, individualized information that can influence monitoring decisions — including the use of depth-of-anesthesia technology — in meaningful ways.

Questions Worth Asking Before You Go Under

When Elena and I finished talking that afternoon, I gave her a short list of questions to bring to her pre-anesthesia consultation. She later told me it transformed the entire conversation — that her anesthesiologist was genuinely engaged, that several things were adjusted based on her history, and that she went into her procedure feeling informed rather than simply compliant.

The questions are not complicated. They are simply the ones that tend to be skipped.

What type of anesthesia will be used, and why is it the right choice for me specifically? Regional or local anesthesia is associated with better cognitive outcomes in certain patient populations. General anesthesia is sometimes chosen by default when alternatives may be equally effective and gentler on the nervous system.

Will depth-of-anesthesia monitoring be used? Technology such as the BIS monitor tracks brain activity in real time and allows anesthesiologists to titrate agents more precisely — reducing both the risk of awareness and the risk of over-sedation.

How will my specific medications and health conditions be managed perioperatively? This is the invitation to share everything — thyroid status, hormonal therapy, supplements, metabolic history, and any known genetic considerations.

What is the plan for postoperative pain management, and does it minimize opioid exposure? Opioid-sparing anesthesia protocols have advanced significantly. For patients concerned about cognitive recovery or those with a history of sensitivity to pain medications, these approaches are worth requesting explicitly.

Recovery Is Part of the Picture Too

Safer surgery does not end in the operating room. How the body is supported in the hours and days that follow shapes the arc of recovery in ways that most patients never fully appreciate.

Inflammation is the body's natural response to surgical trauma, but it does not need to be left entirely unmanaged. Nutritional status before surgery — particularly adequate protein, vitamin D, and omega-3 fatty acids — influences how efficiently tissue heals. Mitochondrial support, stress response, and sleep architecture all affect recovery speed. For patients with underlying hormonal or metabolic complexity, the postoperative period deserves as much clinical attention as the pre-surgical preparation.

In my practice, the conversation about surgery does not conclude at the pre-op visit. It continues through recovery — monitoring how the body is responding, adjusting support strategies as needed, and ensuring that any cognitive or hormonal effects of the procedure are identified and addressed early rather than attributed simply to the expected aftermath of going under.

Advocating for Yourself Is Not Optional

There is a version of surgical preparation that is passive. You complete the forms, you show up, you trust that the system will catch everything it needs to catch. For many patients, that approach works out fine.

But for patients who carry complexity — metabolic, hormonal, neurological, or pharmacological — that passivity has a cost. And the cost is usually invisible until after the procedure, when something in the recovery does not unfold as cleanly as expected.

The patients I have watched navigate surgery most gracefully are the ones who came in informed, who asked the specific questions, and who had a physician in their corner who knew their biology well enough to help them advocate effectively.

Elena's procedure went beautifully. She recovered faster than expected, experienced no cognitive fog, and was back in my office three weeks later looking like herself. She attributed part of that to luck. I attributed most of it to preparation.

If you are planning a surgical procedure — elective or otherwise — I would encourage you not to wait until the week before to have these conversations. Come in. Let us review your history, your medications, your labs, and your risk profile. Let us build a pre-surgical strategy that reflects your individual biology rather than a generic checklist.

Safer surgery begins long before the operating room. It begins with knowing what to ask — and having someone in your corner who knows the answers.