Pandemic preparedness: How hospitals can adapt buildings to address worst-case scenarios
April 03, 2020
A Canadian healthcare architect looks at how hospital staff can act now to modify facilities and contain a pandemic
I spend much of my life thinking about hospital design. And these days, with the outbreak of novel coronavirus (COVID-19), I¡¯m sure many people around the world are looking at their hospitals in new ways, as patients and staff try to stay healthy. COVID-19, declared a pandemic by the World Health Organization (WHO), has brought hospital design and infection control to the forefront.
My colleagues and I are currently looking at pandemic management best practices from around the globe, such as the approaches?Singapore?implemented after the SARS (Severe Acute Respiratory Syndrome) epidemic in 2003. Strategies from countries like Singapore can be used¡ªand some practices already have¡ªin North American and European hospitals. What we¡¯re learning is that we should be looking at several specific approaches now and moving forward, to help ensure that we are planning for and able to manage current and future health crises.
In Canada, there have been significant strides toward building preparedness into our hospital designs since the SARS outbreak hit Toronto. A key element of preparedness is the ability for hospitals to retrofit or reallocate parts of their facilities, accommodating worse-case scenarios such as a serious outbreak. Here are four ways that hospitals can act now to alter their buildings for pandemic response.
It¡¯s important that healthcare teams can control access to every department in the hospital. When there¡¯s an outbreak, it¡¯s key that practitioners have the option to restrict access to certain spaces.
1. Including separate emergency entrances for contagious patients
One of the biggest risks of an infection infiltrating a hospital system occurs when people walk in but don¡¯t realize they¡¯re sick. At the point of entry, healthcare staff need to be able to screen people.
Conventional:?Normally, patients can find the emergency department by walking in the hospital¡¯s front doors or the emergency entrance. But if someone is feeling symptoms of COVID-19 and they arrive at the main entrance and wander around the hospital first¡ªperhaps looking at a map of the hospital or buying a coffee¡ªthey could be coughing or touching numerous surfaces, leaving a trail of infection in their wake.
Pandemic response:?Separate the emergency entrance, so people with COVID-19 symptoms stay away from the main doors. You don¡¯t want patients who are visiting the hospital for other issues¡ªsuch as broken bones, or other non-contagious injuries or issues¡ªsharing the same space with patients exhibiting COVID-19 symptoms. Having a separated emergency entrance for contagious patients, particularly those with fevers, enables hospitals to stream patients there first for screening before entering other areas of the hospital. Hospitals can also incorporate another entrance with negative-pressure isolation rooms at emergency for patient transfers, where an undiagnosed patient who may be infectious is contained before moving further into the hospital environment. This enables hospital staff to diagnose and then, if necessary, prepare the path to a negative-pressure isolation room.
2. Transforming hospital lobbies¡ªas well as other external spaces¡ªfor patient prescreening
Existing large spaces can be valuable in a pandemic scenario. Large main lobbies are sometimes criticized as a luxury, but in a pandemic, they can be converted into mass screening triage areas. External spaces¡ªlike parking areas¡ªcan also be used for prescreening but should be considered a last resort.
Conventional:?Typically, a hospital lobby welcomes visitors while offering retail and providing wayfinding assistance. The lobby may also serve an important community function, where it resembles a town square and provides a space for residents to meet and interact.
Pandemic response:?By adapting a lobby for mass screening, it can relieve the stress imposed on the Emergency Department so that the department doesn¡¯t become overwhelmed. Newer hospitals will likely have lobbies with electrical and IT services support. As a secondary option, a hospital parking lot¡ªor potentially a parking structure adjacent to the hospital¡ªcan provide opportunities for prescreening. This way, healthcare staff can ensure patients are going to the right place and not adding to cross-contamination. Ideally, an internal space like a lobby is a better option, so healthcare teams don¡¯t have to deal with outdoor conditions, especially during the winter in many North America cities.
A hospital lobby can be used for mass-screening in a pandemic scenario.
3. Controlled separation between patients, visitors, and staff, based upon specific illnesses and their related level of contagion
With screening at hospital entries in place, it¡¯s key to be able to manage ¡°on stage¡± public access to each department while maintaining separate ¡°off stage¡± service flows necessary¡ªe.g., the ¡°behind-the-scenes¡± areas of the hospital¡ªfor continued operations.
Conventional:?Usually, it¡¯s desirable to offer public access to most departments.
Pandemic response:?When dealing with a pandemic, it¡¯s important for healthcare professionals to manage who comes into a given area. Staff members need to have the ability to keep visitors and other patients away from specific areas. If possible, public access should be restricted. At this point, the Public Health Agency of Canada advises healthcare professionals to limit the number of visitors to those who are essential (such as an immediate family member or parent, guardian, or primary caregiver), and limit their movement within the hospital by only visiting the patient directly.
Can your inpatient room be converted into an isolation zone?
4. Providing the ability to convert existing hospital spaces¡ªduring a pandemic¡ªinto patient treatment spaces
Healthcare staff know that inpatient units and rooms are designed to contain and control infections. But in a pandemic situation, modifications may need to be made.
Conventional:?Staff will have access to Airborne Isolation Rooms (AIR)¡ªwhich contain vestibules and filtered air to eliminate transfer contamination through the hospital¡ªfor patients. And even in regular patient rooms, underlying engineering systems should be designed to maintain the room at negative pressure to the adjacent corridor. This supports infection control so that germs from one infectious patient are not ¡°blown out¡± to the rest of the unit.
Pandemic response:?If only a portion of the rooms on a floor are AIR, in the case of a pandemic, staff should have the ability to convert regular patient rooms¡ªor even a whole unit, if needed¡ªinto an isolation zone. Ontario¡¯s Ministry of Health recommends the use of an AIR, with negative pressure validated daily, but acknowledges that a single room¡ªwith the door closed¡ªcan also be used if necessary. The Public Health Agency of Canada advises that a patient with COVID-19 symptoms should be cared for in a single room with a private toilet and sink for designated patient use. The Agency recommends that infection prevention and control signage should be placed at the room entrance.
When dealing with a pandemic, it¡¯s important for healthcare professionals to manage who comes into a given area. If possible, public access should be restricted.
The ability to adapt
My teams and I try to design healthcare buildings that can be adapted. In a situation like we¡¯re currently in, it¡¯s important for hospital staff to be able to modify facets of their building to quickly respond. Resiliency is a key word here¡ªhospitals need to be resilient, with the ability to pivot or change their functionality to respond to situations as they come up.
In the end, hospitals need to service the people of a community on good days and bad days, in typical situations and during worst-case scenarios. Hospitals must function for multiple uses and be able to react to a variety of circumstances.
I¡¯m impressed with the way Canadian healthcare facilities have managed COVID-19 so far, and I¡¯m intrigued to see how healthcare teams around the globe share best practices on preparedness as we face this pandemic and learn from one another.