Why Outpatient Care Is Changing Critical Care Demand

More care is moving out of the hospital, which is generally good news for patients who can recover safely at home or avoid an inpatient stay altogether.

But it also changes the patients who remain in the hospital, and eventually, the patients we care for in the ICU.

As lower-acuity procedures and treatments move to outpatient settings, inpatient teams may care for a greater concentration of patients who need complex treatment, prolonged monitoring, and multiple specialists. I think this shift has important implications for how hospitals staff and manage their ICUs.

The ICU has always cared for the sickest patients. The question is whether our staffing, workflows, and capacity planning will keep pace with what those patients need.

A recent Healthcare Dive article highlighted how hospitals are shifting more care to outpatient settings as patient preferences, payer pressure, and advances in treatment make that possible. The article notes that inpatient wards are seeing a sicker mix of patients as some lower-acuity care moves elsewhere.

The trend is expected to continue. In its 2026 forecast, Vizient projected outpatient volume growth of 20% over the following decade, compared with 7% growth in inpatient discharges. Those are national projections, so individual markets and hospitals will look different.

This shift makes sense for many patients. If a procedure can be performed safely in an outpatient setting, a patient may be able to recover at home without the disruption and expense of a hospital admission.

I’ve discussed a related shift in hospital-at-home care: advances in care delivery can allow us to treat selected patients outside the hospital who previously would have needed a bed.

But the patients who still require admission don’t necessarily disappear. They remain in the hospital because they need care that can’t be safely delivered elsewhere.

I want to be careful with the conclusion here.

The Healthcare Dive article describes changes in hospital inpatient case mix, not a direct measurement of ICU acuity. A shift in where procedures occur doesn’t prove that every ICU patient is becoming sicker, or that outpatient migration alone will increase critical care demand.

Still, there are reasons for us to pay attention to the direction of demand.

In a separate 2025 analysis, Vizient projected that adult ICU days would increase 14% from 2025 to 2035, compared with 5% growth in overall inpatient utilization in that forecast. Medical ICU days were also projected to grow 14%, while surgical ICU days were projected to grow 12%.

The important distinction is that ICU days are not the same as ICU admissions. More ICU days could reflect more patients, longer stays, or a combination of both. Either way, those days require staffed beds and the clinicians and resources to support them.

We also need to consider factors beyond the outpatient shift. An aging population, chronic disease, advances that allow patients to live longer with complex conditions, and barriers to accessing care may all influence future demand.

My expectation is that critical care expertise will remain in greater demand as these pressures converge. The size of that demand—and where it is felt most—will depend on the local patient population, hospital, and available workforce.

When hospitals talk about capacity, the conversation can quickly become a discussion about physical beds.

But an ICU bed only functions when it has the people and resources behind it: nurses, respiratory therapists, physicians, pharmacists, support staff, equipment, and access to the rest of the hospital.

If the patients occupying those beds require more monitoring, more organ support, or longer stays, a static bed count tells us very little about whether the unit is equipped to handle the workload.

A census of 20 patients can look very different depending on how many are receiving mechanical ventilation, vasopressors, or continuous renal replacement therapy—and how much coordination is needed for procedures, transfers, and family discussions. That’s why I think critical care planning needs to account for workload and patient needs, not just occupancy.

This trend may create opportunities. Hospitals will continue to need clinicians who can manage respiratory failure, shock, complex transitions, and the uncertainty that comes with critical illness.

But demand for our expertise doesn’t automatically translate into adequate staffing, sustainable schedules, or appropriate compensation. If hospitals expect ICU teams to manage more complex workloads without changing how they staff or organize care, clinicians may absorb the gap through longer shifts, more competing demands, and less time for the conversations and coordination patients need.

That affects the whole team. Nurses and respiratory therapists are managing much of the minute-to-minute work at the bedside, while pharmacists and other specialists help make increasingly complex care possible.

It also affects patients and families. More complex care often means more difficult decisions, uncertain prognoses, and transitions that require explanation. As I discussed in ICU Terms and Conditions: Managing Expectations in Critical Care, families need clear conversations about what critical care can—and cannot—offer. Those conversations take time.

We can’t plan for the next decade using national projections alone. But we can use them as a reason to examine what is happening in our own hospitals.

Look beyond average daily census and occupancy. Review ICU length of stay, ventilator days, organ-support needs, transfers, and patterns in patient complexity alongside the staffing required to care for those patients.

No single measure captures workload. Taken together, they can help teams identify when the same number of patients requires a different level of support.

Physician coverage matters, but it’s only one part of ICU capacity. Staffing discussions should include nursing, respiratory therapy, pharmacy, and other team members whose work changes as patient needs change.

For practice leaders, that also means examining whether call schedules, night coverage, and time for family communication reflect the actual work being done.

An ICU patient who is ready to leave still needs an appropriate next destination. If step-down beds, floor staffing, or post-acute services aren’t available, the ICU bed may remain occupied.

Vizient projects growth in post-acute care demand as well, so hospitals should plan across the care continuum rather than treating ICU throughput as an isolated problem.

Critical care teams see where delays occur and which patients require the most resources. That perspective should be part of decisions about staffing, transfers, intermediate-care capacity, and technology purchases.

Before adding another dashboard or predictive tool, I’d want to know what decision it improves, who is expected to act on it, and whether the necessary staff and beds are actually available.

The shift toward outpatient care is reshaping hospital medicine. Some lower-acuity care can move closer to home, while hospitals continue to care for patients who need complex, resource-intensive treatment.

We shouldn’t assume that every ICU will experience the same increase in acuity or demand. But projections of growing ICU utilization are a reason for critical care practices and hospitals to look closely at their own patients, workforce, and capacity.