What to Ask Your Neurosurgeon Before Pituitary Surgery

Finding the right neurosurgeon to remove your non-functioning pituitary adenoma is one of the most important steps in your treatment journey. To ensure you are in the safest hands, you should ask your neurosurgeon about their annual surgical volume, complication rates, surgical approach, and team. Asking these questions empowers you to evaluate whether the surgeon operates at the level of a Pituitary Tumor Center of Excellence (PTCOE)—specialized facilities proven to deliver better outcomes for pituitary patients. If you do not live near a major medical hub, knowing these benchmarks can help you decide whether it is worth seeking a second opinion via telehealth or traveling for your surgery. Remember, a good surgeon will welcome these questions. If a doctor becomes defensive or dismissive or does not track their complication rates, it is perfectly reasonable to seek a second opinion.

1. Questions About Surgical Volume

The number of pituitary surgeries a doctor and their hospital perform each year—known as surgical volume—is directly tied to how successful the surgery will be. Research shows that higher surgical volume reduces the risk of needing repeat surgeries and lowers complication rates ^[1][2].

When vetting your surgeon, ask:

• “How many pituitary surgeries do you personally perform each year?”
• “How many pituitary cases does this hospital handle annually?”

To be considered a Pituitary Center of Excellence, a facility should ideally perform at least 100 pituitary surgeries per year, though 50 procedures per year is considered an acceptable minimum standard ^[3]. Surgeons with high personal volumes are more proficient and have already overcome the steep learning curve associated with these delicate procedures ^[4].

2. Questions About the Surgical Approach

Most non-functioning pituitary tumors are removed through the nose using transsphenoidal surgery (meaning “through the sphenoid sinus”). However, there are different ways to do this.

When vetting your surgeon, ask:

• “Do you use a fully endoscopic transsphenoidal approach?”

Endoscopic transsphenoidal surgery (eTSS) uses a thin, lighted tube with a camera (endoscope) rather than a traditional microscope. Studies show the endoscopic approach offers a wider, clearer field of vision, which helps the surgeon distinguish between normal pituitary tissue and the tumor ^[5][6]. Compared to traditional microscopic surgery, the endoscopic method is associated with a higher likelihood of complete tumor removal (gross total resection) and a lower incidence of certain nasal complications, like a hole in the wall separating your nostrils (septal perforation) ^[5][7].

Note: While the endoscopic approach is the modern standard at most Centers of Excellence, a highly experienced, high-volume surgeon using a microscopic approach can also deliver exceptionally safe and effective outcomes.

3. Questions About the Surgical Team

Because the nose and sinuses are the pathway to the pituitary gland, removing a tumor safely often requires expertise in both the nasal passages and the brain.

When vetting your surgeon, ask:

• “Do you operate alongside a dedicated ENT (Ear, Nose, and Throat) surgeon?”
• “Who else is on your multidisciplinary team?”

The best outcomes are achieved when a neurosurgeon and an ENT surgeon (otolaryngologist) operate together—often referred to as a “two-surgeon, four-hand” technique. Multidisciplinary collaboration between these two specialties is a standard requirement for optimizing the surgery and preserving your sense of smell (olfaction) ^[8][9]. Furthermore, true Centers of Excellence rely on a broad multidisciplinary team that includes dedicated pituitary endocrinologists, neuro-ophthalmologists, and neuroradiologists ^[3][10].

4. Questions About Complication Rates and Outcomes

Thinking about surgical complications is terrifying, but understanding these risks is essential for making an informed decision. Expert surgeons closely track their outcomes and should be transparent about their numbers.

When vetting your surgeon, ask:

• “What is your rate of postoperative cerebrospinal fluid (CSF) leaks?”
• “What is the risk of patients developing new, permanent hormone deficiency after surgery?”
• “What is the likelihood my vision will improve after surgery?”
• “What happens if you cannot safely remove the entire tumor?”

During any transsphenoidal surgery, the fluid that cushions the brain (cerebrospinal fluid or CSF) can sometimes leak into the nasal cavity ^[11]. Highly experienced surgeons use specialized, multi-layered reconstruction techniques to effectively seal the area and minimize this complication ^[12].

Additionally, surgery can sometimes damage the healthy part of the pituitary gland, leading to hypopituitarism—a permanent deficiency in one or more hormones that requires lifelong medication ^[13]. High-volume centers and surgeons are better equipped to preserve normal pituitary tissue and keep this risk low ^[14]. Overall, expert centers aim to keep major complication and 30-day hospital readmission rates well below 10% ^[3]. In highly experienced centers, the rate of major disability or death is extremely low, reported around 0.26% ^[15].

Finally, because non-functioning adenomas can invade spaces like the cavernous sinus where major blood vessels and nerves reside, completely removing the tumor isn’t always safe. A thoughtful surgeon will always have a “Plan B” (such as carefully monitoring the residual tumor or using targeted radiation) to protect your quality of life.