Neuroanesthesia

What Neuroanesthesiologists Actually Do Day-to-Day

Neuroanesthesia is anesthesiology practiced at the intersection of the nervous system and the operating room—which sounds obvious until you see what that actually means at 7 a.m. on a craniotomy day. The morning starts with a chart that looks nothing like a routine general case: a patient with a grade III glioma, on levetiracetam and dexamethasone, with elevated intracranial pressure on imaging, scheduled for an awake craniotomy with intraoperative language mapping. The anesthetic plan has to account for brain relaxation, cortical mapping conditions, patient cooperation during awake phases, and the neurological exam you will be running from the head of the table while the neurosurgeon stimulates cortex.

On a different day the board shows a posterior fossa decompression, a cerebral arteriovenous malformation resection, a lumbar fusion with intraoperative neuromonitoring, and an endovascular cerebral aneurysm coiling in the neuroradiology suite. Each case type carries its own pathophysiology, its own pharmacological constraints, and its own definition of a bad outcome. A drop in motor evoked potential amplitude during spine surgery means something. Cerebral perfusion pressure trending below target during a temporary clip means something different but equally urgent. You are expected to know which intervention to reach for, and why, before the surgeon asks.

There is also a meaningful ICU dimension. Neuroanesthesiologists at most academic centers participate in post-operative neurocritical care handoffs, and at many programs the fellowship formally includes neurocritical care rotations. The post-op course of a subarachnoid hemorrhage patient, the management of delayed cerebral ischemia, or the nuances of ICP monitoring are not peripheral knowledge—they are part of the job, especially at programs where neuroanesthesia and neurocritical care overlap structurally.

The pace is different from general anesthesia. You will likely run fewer cases per day. What you trade in turnover volume you spend in longitudinal case management—a single procedure may occupy your entire day, and the cognitive demands do not thin out at hour six the way the clock might suggest they should.

The Core Procedures and Clinical Responsibilities

The procedural scope of neuroanesthesia is wider than most trainees realize before they rotate through it. The categories below define what a fellowship-trained neuroanesthesiologist is expected to manage independently.

• Craniotomies for tumor, vascular, and epilepsy surgery. This includes supratentorial and infratentorial approaches, with specific anesthetic implications for each. Posterior fossa cases introduce risks of venous air embolism, hemodynamic instability from brainstem manipulation, and difficult airway access once the patient is positioned prone or in pins.
• Awake craniotomy. The awake craniotomy is one of the defining technical and interpersonal challenges of the subspecialty. You manage an asleep-awake-asleep or monitored anesthesia care protocol while simultaneously keeping a patient cooperative enough for language or motor mapping, comfortable enough to remain still, and physiologically stable enough that the surgeons can work. Airway management in the semi-lateral position with a pinned head is not trivial. Patient selection conversations and preoperative psychological preparation are part of the neuroanesthesiologist's role at most programs.
• Cerebrovascular and endovascular neuroradiology. Aneurysm clipping and coiling, arteriovenous malformation resection, carotid endarterectomy, and increasingly complex endovascular thrombectomy cases under general anesthesia all fall under this umbrella. The neuroanesthesiologist manages deliberate hypotension or hypertension as surgically required, temporary vessel occlusion physiology, and the transition from procedure to neuro-ICU.
• Intraoperative neuromonitoring (IONM). Neuroanesthesiologists do not typically run the monitoring technician's equipment, but they are responsible for the pharmacological environment that makes IONM interpretable. Somatosensory and motor evoked potentials are suppressed by volatile agents in a dose-dependent fashion. TIVA (total intravenous anesthesia) with propofol and remifentanil is the standard framework for cases requiring reliable evoked potential signals, and understanding the tradeoffs—hemodynamic instability risk, awareness risk, depth of anesthesia monitoring—is essential.
• Intracranial pressure management. From patient positioning to osmotic therapy to ventilation targets to anesthetic choices, ICP management runs through nearly every major neurosurgical case. The neuroanesthesiologist needs a working physiological model, not a protocol checklist.
• Spine surgery. High-level spine cases—anterior cervical approaches, complex instrumented fusions, deformity corrections—involve neuromonitoring considerations, positioning risks including ischemic optic neuropathy and brachial plexus injury, and hemodynamic management during periods of significant blood loss.
• Neurocritical care handoffs and ICU participation. The extent varies by program, but fellowship training generally includes structured exposure to post-operative neurocritical care management, including ventilator management, ICP monitoring interpretation, and vasospasm protocols after subarachnoid hemorrhage.

Who Thrives in Neuroanesthesia: Personality and Cognitive Fit

This subspecialty selects for a particular cognitive style. It is worth being honest about what that looks like, because the wrong fit makes for a miserable fellowship year and a career that drains rather than energizes.

People who do well in neuroanesthesia tend to share several traits. They find the nervous system genuinely interesting—not as a topic to master for boards, but as a system they want to think about during long cases. The intellectual content of neuroanesthesia (cerebral autoregulation, neurovascular coupling, the pharmacodynamics of anesthetic agents on electrophysiology) is not incidental to the job; it is the job. Physicians who engage with that material out of curiosity, not obligation, sustain better performance over long cases and become more effective clinicians over time.

Comfort with prolonged vigilance is essential. A ten-hour craniotomy has long stretches that look quiet from the outside and are not quiet from the inside. The neuroanesthesiologist monitoring evoked potentials, tracking cerebral perfusion pressure, adjusting TIVA rates, and watching for signs of venous air embolism during those hours is doing sustained cognitive work that does not map onto the turnover rhythm of a general anesthesia day. People who derive energy from fast pace and frequent transitions often find this exhausting rather than engaging.

Collaborative temperament with neurosurgery and neurology matters practically. Neuroanesthesiologists work in sustained professional proximity to neurosurgeons—often the same teams, repeatedly, over years. The relationship is collegial but carries tension around shared decision-making: brain relaxation, wake-up tests, blood pressure targets during temporary clips are all areas where the neuroanesthesiologist's judgment intersects with the surgeon's preferences. Physicians who struggle with asserting clinical positions in the presence of a strong-personality surgical culture will find the subspecialty more stressful than those who can hold a physiological position calmly and clearly.

Detail orientation in documentation and planning is not optional. Pre-operative assessment for neurosurgical patients involves synthesizing imaging findings, neurological status, medication lists (anticonvulsants, steroids, anticoagulants), and functional status in ways that affect the intraoperative plan specifically. Generic preoperative evaluations produce inferior outcomes in this population.

Who struggles: physicians who need variety of case type to stay engaged, those who are uncomfortable with the weight of neurological outcomes (a stroke attributable to anesthetic management is a different kind of harm than a sore throat from intubation), and those who find the collaboration-intensive neurosurgical environment politically exhausting.

How Neuroanesthesia Differs From General Anesthesia

The technical and intellectual distance between general anesthesia practice and neuroanesthesia fellowship is real and should not be minimized when you are deciding whether to pursue this path.

Pharmacological specificity. In general anesthesia, many agents are interchangeable for most cases. In neuroanesthesia, agent choice carries pathophysiological consequences. Volatile anesthetics increase cerebral blood flow and may worsen intracranial hypertension at higher concentrations. Nitrous oxide raises cerebral metabolic rate and is generally avoided in intracranial cases. Ketamine's effects on ICP and cerebrovascular resistance remain debated and context-dependent. Dexmedetomidine's profile in awake craniotomy management differs from its profile in ICU sedation. These distinctions matter at the bedside, and the neuroanesthesiologist is expected to make and defend them.

Brain relaxation strategies. Achieving adequate surgical exposure in intracranial cases often requires active brain relaxation: positioning optimization, moderate hyperventilation targeting specific PaCO₂ ranges, osmotic agents (mannitol, hypertonic saline), CSF drainage strategies, and anesthetic depth management. The neuroanesthesiologist coordinates these interventions sequentially or simultaneously, titrating to a surgical field the neurosurgeon can work in without causing secondary neurological injury.

Wake-up tests and intraoperative neurological assessment. Awake craniotomy requires managing a patient through planned transitions in consciousness. Spine surgery sometimes requires intraoperative wake-up tests for motor assessment. These are technically demanding and require a prepared patient, a thoughtful anesthetic plan, and real-time titration judgment that goes well beyond standard emergence.

Cerebral perfusion pressure targets. Managing MAP in the context of elevated ICP to preserve CPP is a dynamic intraoperative task. The targets shift with surgical stage, patient positioning, and hemorrhage. Neuroanesthesiologists track this continuously, not episodically.

The weight of neurological outcomes. A postoperative stroke, a new motor deficit, or a visual field loss attributable to the anesthetic or perioperative management is qualitatively different from other anesthetic complications. The neuroanesthesiologist lives with this weight professionally and must have a clear-eyed relationship with it. This is neither a deterrent nor a badge—it is a feature of the work that deserves honest acknowledgment before fellowship.

Lifestyle and Schedule Reality Check

Neuroanesthesia is not a lifestyle fellowship in the conventional sense. The following reflects general patterns across academic programs; your specific program's call structure and case mix will vary and should be confirmed during the application and interview process.

Case length. Craniotomies for complex tumors, vascular malformations, or skull base lesions routinely run six to twelve hours. Complex spine cases run long. Awake craniotomies require extended preoperative preparation time. You will have days where you manage one or two cases and are in the operating room for the entire shift. This is not a complaint—it is the job—but it matters for scheduling, energy management, and what you expect from a workday.

Call. Most neuroanesthesia fellowships at academic centers involve call coverage for emergent neurosurgical cases: ruptured aneurysms, traumatic intracranial hemorrhage, acute hydrocephalus, emergent spine decompression. These are not predictable in timing. Fellowship call at major neurosurgical centers can be genuinely busy, particularly at level I trauma centers with high-volume neurosurgery. The specifics—frequency, overnight vs. home call, backup coverage—vary substantially by program and should be a direct question during interviews.

Geographic concentration. Neuroanesthesia fellowships are concentrated at academic medical centers with high-volume neurosurgery programs. This is not a fellowship you will find at community hospitals or smaller academic programs without active neurosurgical services. If geographic flexibility is limited, the pool of programs you can realistically apply to may be smaller than in other subspecialties, and this matters for planning.

Comparison to other anesthesia subspecialties. Relative to cardiac anesthesia, neuroanesthesia is generally perceived as having comparable case complexity with somewhat less hemodynamic instability in routine cases but more variable call burden depending on trauma volume. Relative to regional or obstetric anesthesia fellowships, the lifestyle is less predictable and the cases run longer. Pediatric anesthesia fellowships at major children's hospitals may have comparable call intensity. These are generalizations—program-level variation dominates individual comparisons.

Post-fellowship practice. Academic neuroanesthesiologists typically have protected research and teaching time that provides schedule structure unavailable in pure clinical roles. Private practice neuroanesthesia positions at centers with active neurosurgery programs exist but are fewer in number and tend to carry heavier clinical loads without the academic scaffolding.

The Neuroanesthesia Fellowship Landscape

Understanding the structural landscape before you apply positions you to ask better questions and make better choices.

ACGME accreditation. Neuroanesthesia fellowships are not uniformly ACGME-accredited. Some programs operate as non-accredited one-year clinical fellowships that are well-regarded and offer excellent training but do not carry formal ACGME subspecialty certification. ACGME accreditation in neuroanesthesia exists through the Anesthesiology subspecialty accreditation framework, but the total number of formally accredited programs is smaller than the total number of programs offering neuroanesthesia training. When evaluating programs, explicitly ask about accreditation status and what it means practically for your certificate documentation and career positioning.

Program structure. Most fellowships are one year in duration. The clinical experience typically includes a core neuroanesthesia block (craniotomies, vascular, spine with neuromonitoring, endovascular), a neurocritical care rotation, and often exposure to pediatric neurosurgery at programs with children's hospitals. Research time, conference expectations, and didactic structure vary. Programs embedded in large neurosurgery departments—those with active skull base, epilepsy, deep brain stimulation, and cerebrovascular programs—offer broader case variety than programs built primarily around tumor and spine volume.

Case volume benchmarks. The Society for Neuroscience in Anesthesiology and Critical Care (SNACC) has published training guidelines that describe case volume expectations for fellowship training. Reviewing these directly gives you a reference point when evaluating program claims about clinical exposure. Programs should be able to document their case logs; ask for them.

Program numbers nationally. The total number of neuroanesthesia fellowship positions nationally is modest relative to the size of the anesthesiology workforce. This is a subspecialty with selective training capacity, which has implications for both competitiveness and for the relative scarcity of fellowship-trained neuroanesthesiologists in practice—a dynamic that supports demand in academic markets.

Competitiveness and Application Realities

Neuroanesthesia fellowship is competitive relative to some anesthesia subspecialties, and understanding what actually moves applications forward will save you from optimizing the wrong variables.

Clinical foundation. Programs expect applicants to have demonstrated genuine engagement with neuroanesthesia during residency. This means elective rotations in neuroanesthesia, documented case exposure in craniotomies and neuromonitoring cases, and ideally some neurocritical care time. Applicants who rotate through the program they intend to apply to, and perform well, have a meaningful advantage at those programs.

Letters of recommendation. A strong letter from a neuroanesthesiologist who knows your clinical work specifically—not a generic letter from your program director—carries more weight. If you are interested in neuroanesthesia, building a real working relationship with neuroanesthesia faculty in your residency program, and ideally visiting faculty at programs you are applying to, is the most direct investment you can make.

Research. Academic programs value research engagement. This does not require a publication in Anesthesiology before you apply, but it does mean having done something: a quality improvement project, a case series, a basic science rotation, conference presentation, or ongoing IRB-approved study. Programs training future academic neuroanesthesiologists want evidence that you can engage with the scholarly dimension of the subspecialty. At less research-intensive programs, clinical excellence may weigh more heavily.

Board performance. Strong performance on anesthesiology boards (written and applied) signals the cognitive foundation programs expect. This matters more at some programs than others, but it is never a liability.

Relative competitiveness. Neuroanesthesia fellowship is generally considered less numerically competitive than cardiac anesthesia fellowship at the most sought-after programs, but the total number of positions means that strong candidates are still selecting into a limited pool. Programs vary substantially in how many applications they receive and how they interview. Applying broadly across accredited and well-regarded non-accredited programs, rather than only to the highest-profile programs, is a reasonable strategy.

How to Build a Neuroanesthesia-Oriented Residency

The decisions you make in CA-1 through CA-3 have a direct effect on fellowship application competitiveness and, more importantly, on whether you are actually ready for fellowship when you arrive.

CA-1. The priority in CA-1 is building a solid general anesthesia foundation—airway management, hemodynamic monitoring, basic pharmacology, perioperative medicine. Do not rush subspecialty exposure before the foundation is stable. That said, if your program offers an early neuro elective, take it as an orientation rather than a credentialing experience. Pay attention to how neuroanesthesia faculty think through their cases.

CA-2. This is when subspecialty exposure becomes strategically important. Request neuroanesthesia elective time specifically. If your program has a neurocritical care ICU, rotate through it—this is one of the most useful experiences you can have for both fellowship preparation and application strength. Begin building relationships with neuroanesthesia faculty. If you identify a research question or ongoing study you can contribute to, engage now rather than waiting until CA-3.

CA-3. Use CA-3 elective time to do away rotations at programs you are seriously considering for fellowship. This is standard practice in anesthesia subspecialty fellowship applications and is well understood by both applicants and programs. A successful away rotation at a target program substantially improves your positioning there. Apply to fellowship programs during CA-3; most neuroanesthesia fellowship applications cycle on a timeline that runs through the final residency year. See the current season timeline on the site's data pages for specific dates.

Reading and intellectual engagement. Miller's Anesthesia has a dedicated neuroanesthesia section that is the standard starting point. SNACC publishes clinical practice resources and position statements that are worth reading as your clinical exposure develops. Attending the SNACC annual meeting as a resident—if funding is available—puts you in the same room as program directors and active researchers in the field and signals genuine commitment.

Mentorship. Find one neuroanesthesia attending who knows your work and is willing to invest in your development. One strong mentor relationship is more valuable than casual familiarity with many faculty. Be explicit about your interest; neuroanesthesia faculty at academic programs expect and welcome this kind of conversation with motivated residents.

Research, Academic, and Non-Academic Career Paths

Fellowship training in neuroanesthesia opens several distinct career trajectories, and the one you aim for should influence how you spend the fellowship year.

Academic neuroanesthesia attending. The primary pathway for fellowship graduates is an academic faculty position at a medical center with an active neurosurgery program. These positions typically involve a mix of clinical neuroanesthesia, resident and fellow teaching, and scholarly activity. The academic market for fellowship-trained neuroanesthesiologists at major centers is relatively favorable given the limited number of trained subspecialists—though as with all academic medicine, position availability is geographically concentrated and institutional fit matters enormously.

Hybrid neuro-ICU/anesthesia roles. At centers where the neuroanesthesiology and neurocritical care divisions overlap functionally, some attendings hold hybrid appointments that include both OR and ICU responsibilities. These roles are valuable and intellectually rich but require fellowship training that specifically includes substantive neurocritical care exposure. If this trajectory interests you, prioritize programs where the neuroanesthesia and neurocritical care services have a genuine structural relationship.

Private practice neuroanesthesia. Private practice or employed positions at high-volume neurosurgical centers—major regional hospitals, some multi-specialty surgical groups—exist for fellowship-trained neuroanesthesiologists. These positions tend to carry heavier clinical loads and less protected time than academic roles, but they offer compensation structures that academic medicine typically cannot match. The tradeoff is the absence of resident teaching, protected research time, and the intellectual infrastructure of an academic department.

Industry and device consulting. Neuroanesthesiologists with expertise in intraoperative neuromonitoring, cerebral oximetry, or brain protection strategies are occasionally recruited by medical device and pharmaceutical companies in consulting or advisory roles. This is typically a supplement to clinical practice rather than a primary career path, but it is a real dimension of the ecosystem.

Academic leadership. Neuroanesthesia division chiefs, department chairs, and GME leadership roles exist for those who develop both the clinical expertise and the administrative interest over time. Fellowship is the entry point, not the destination; the trajectory beyond it depends on what you build in the first five to ten years of attending practice.

Common Misconceptions About Neuroanesthesia

Several persistent misconceptions shape how medical students and residents approach—or avoid—this subspecialty. Getting them out of the way helps you evaluate the field on accurate grounds.

"You just keep them still." This is the most reductive and least accurate framing of neuroanesthesia. Keeping a patient immobile during a craniotomy is approximately as challenging as keeping a pilot stationary during a landing—technically true but missing everything that matters. The active work of neuroanesthesia—cerebral perfusion management, evoked potential optimization, ICP control, wake-up test execution, post-operative neurological status preservation—requires continuous clinical decision-making throughout cases that run many hours.

"It's only brain tumor surgery." Neuro-oncological cases are one component of the neuroanesthesia scope. Cerebrovascular surgery, endovascular neuroradiology, epilepsy surgery, deep brain stimulation, spine with neuromonitoring, functional neurosurgery, and pediatric neurosurgery all fall within the fellowship's clinical range at programs with comprehensive neurosurgery services. The variety is genuine.

"You need a neurology background." You do not need prior neurology training to succeed in neuroanesthesia fellowship, and most applicants do not have it. What you need is genuine interest in neuroscience and willingness to develop the pathophysiological knowledge during fellowship. The cognitive framework transfers from anesthesiology training; the neurological specifics are built in the fellowship year and in subsequent practice.

"The lifestyle is terrible." The lifestyle is demanding—long cases, meaningful call, geographic constraints on program choice. It is not uniformly worse than other complex subspecialties. Cardiac anesthesia, neurocritical care, and transplant anesthesia all carry comparable or greater call burdens at major centers. What neuroanesthesia offers in exchange is a coherent intellectual focus, cases with significant complexity and meaning, and a subspecialty community that is active and relatively collegial. Whether that exchange is favorable is a personal calculation, not an objective verdict.

"You need to want to go into academic medicine." Fellowship training does not bind you to academics. Private practice neuroanesthesia positions exist, and fellowship-trained neuroanesthesiologists are valued in those settings for the clinical sophistication they bring. Fellowship does, however, open academic options that are not available without it.

Signs Neuroanesthesia May Not Be Your Fit

Honest self-selection matters here. Pursuing fellowship in a subspecialty that is wrong for your cognitive style or professional priorities is costly—for you and for the training slot. These are patterns that suggest neuroanesthesia may not be the right direction, not as judgments but as decision-relevant signals.

• Prolonged cases actively drain you. If your best clinical days are the ones with eight efficient turnovers and you find long single-case days cognitively deadening rather than engaging, neuroanesthesia will likely feel like the wrong fit at the level of daily experience.
• Turnover pace and procedure volume are what you find satisfying about anesthesia. There is a real and legitimate form of clinical satisfaction in running a high-volume, efficient room. Neuroanesthesia does not offer that rhythm, and if that rhythm is central to what you enjoy about the specialty, this subspecialty will frustrate rather than fulfill.
• Neuroscience pathophysiology does not hold your interest. If you find yourself reading the neurovascular physiology sections of your textbooks with effort rather than curiosity, the intellectual content of daily neuroanesthesia practice may become a burden rather than an asset. The pathophysiology is not peripheral—it is the job.
• Close, sustained collaboration with neurosurgery feels adversarial rather than collegial. Neurosurgeons are high-stakes, high-confidence surgeons who have strong opinions about intraoperative conditions. If asserting clinical positions in that environment feels politically draining to you rather than professionally normal, the sustained proximity of neuroanesthesia practice will likely be more stressful than it is for those who find the collaboration generative.
• The weight of neurological outcomes feels disproportionate to you. This is worth sitting with honestly. Every anesthesiologist accepts responsibility for perioperative harm. The specific character of neurological harm—a new motor deficit, a language impairment, a visual field loss—has particular meaning that neuroanesthesiologists encounter more directly and more frequently than subspecialists in other domains. This is not a reason to avoid the field, but it is a reason to know yourself clearly before committing to it.

Questions to Ask Yourself Before Committing

Use these as a diagnostic instrument, not a checklist to pass. Honest answers are more useful than flattering ones.

1. When I have had neuroanesthesia exposure in residency—or read about it—does my interest increase or decrease the more I understand what the work actually involves?
2. Can I identify specific cases or clinical problems in neuroanesthesia that I find genuinely interesting, not just impressive? What are they?
3. Am I drawn to neuroanesthesia because the work appeals to me, or because it carries prestige within anesthesiology? Both are real motivations; only one sustains a career.
4. Have I had a ten-plus hour case in neuroanesthesia or a comparable subspecialty? What was my experience of that day, and what does that experience tell me?
5. Do I have a working relationship with at least one neuroanesthesiologist who knows my clinical work and can speak to fit honestly—and have I had a frank conversation with that person about whether this path suits me?
6. Am I geographically flexible enough to pursue fellowship training and an academic position, or will geographic constraints limit my options in ways I have fully accounted for?
7. Do I have a clear-eyed view of what the post-fellowship job market looks like for the type of position I want—academic, private practice, or hybrid—in the regions where I am willing to live?
8. Have I considered the alternative subspecialty pathways—cardiac anesthesia, regional anesthesia, critical care, pediatric anesthesia—and am I choosing neuroanesthesia over them based on the work itself, not because I have not investigated the others?
9. Am I prepared to invest a fellowship year in a subspecialty that will require ongoing self-directed learning well beyond the training period, in a field where neuroscience and technology continue to evolve?
10. What does a good day in my career look like in ten years, and does the day I am describing have neuroanesthesia in it specifically—or is it a description of something that another subspecialty would serve equally well?

Next Steps if Neuroanesthesia Feels Right

If the above points toward neuroanesthesia rather than away from it, the following actions move you from interest to positioning.

• Request a dedicated neuroanesthesia rotation if you have not yet had one, and approach it as an audition—for the fellowship, for the subspecialty, and for yourself. Engage with the pathophysiology before the rotation starts so your questions on day one reflect preparation.
• Identify neuroanesthesia faculty at your program and have an explicit conversation about your interest and how they can help you develop. Ask about research opportunities, case exposure, and whether they have relationships with fellowship program directors they can facilitate introductions to.
• Read the SNACC training guidelines and use them to evaluate programs you are considering. The Society for Neuroscience in Anesthesiology and Critical Care is the primary professional home for this subspecialty; their educational resources are the field's own standards.
• Start with Miller's Anesthesia neuroanesthesia chapters as your clinical foundation text, supplemented by primary literature in the journals where neuroanesthesia research appears: Anesthesiology, Anesthesia and Analgesia, and the Journal of Neurosurgical Anesthesiology.
• Plan away rotations strategically in CA-3 at one to two programs where you are a serious applicant. See the current season timeline on the site's data pages to sequence this correctly relative to application opening dates.
• Review the program listing on the PGY Zero anesthesiology fellowship directory to identify programs by accreditation status, neurosurgery volume, and geographic location before you build your list.
• See related PGY Zero pages on anesthesiology residency fit, neurocritical care fellowship fit, and the anesthesia subspecialty comparison page for adjacent decision-relevant content.