Editorial |
Address correspondence and reprint requests to Arnold B. Bierenbaum, Booz Allen Hamilton, One Preserve Pkwy, Rockville, MD 20852 (e-mail: bierenbaum_arnie{at}bah.com).
It is 11:30 pm on a hot and humid night. Your hospital was just informed that the municipal power supply has been disrupted, with no estimated restoration time. No problem, right? That is what emergency power is for.
Another call comes in informing you that patients are complaining of being uncomfortably warm. Although the power in the hospital never went out, is there a relationship between the increased room temperature and the municipal outage? Is there a bigger problem? What is the hospitals continuity plan? If you know the answer to the above questions, then you probably appreciate the importance of continuity planning. If not, consider reading on.
The hurricane seasons of 2004 and 2005 taught health care leaders that developing, managing, and maintaining continuity of operations plans is crucial. Of particular importance is the ability for a hospital to sustain mission critical systems in the presence of a major disruption (ie, electrical power failure, water loss). This consistent ability to sustain critical systems is one of the main decision points in determining whether a hospital should shelter in place or be evacuated.
The Florida Hospital Association conducted a statistical analysis of the impact hurricanes had on Florida hospitals during the 2004 hurricane season. Of 93 hospitals surveyed, 41 reported losing electrical power. An additional 9 reported loss of water supply and 11 reported losing some other type of critical support function.1
As health care facility leadership prioritize the need for enhancing critical infrastructure, emphasis should be placed on the overall role of the facility. Health care facilities not only treat and care for the injured and ill but they also provide a sense of stability for the community during and after hazard impact.2
Clinicians contributing to emergency planning often overlook the crucial nature of essential services and the impact of service disruptions. This editorial focuses on the mission critical systems that help to sustain patient care, including electrical power; water supply; heating, ventilation, and air conditioning (HVAC); and information technology (IT) resiliency. In addition, the authors will discuss 9 steps that hospitals should consider as part of their business continuity planning activities.
One of the most critical systems in a health care facility is the electrical power supply. Most nonengineers do not consider electrical power in their day-to-day activities, but its impact is felt after it fails. In addition, many hospital managers and leaders do not consider that in most facilities, emergency electrical generators, used as backup sources for electricity, do not provide power to all areas of the hospital. Examples of critical areas not frequently considered for backup power include elevators, necessary for ensuring vertical evacuation of critical care patients,3 and "ancillary areas, such as the morgue."1 In addition, electrical power redundancy ensures that equipment is operational to support critical care patients maintained on life support. Thus, a hospital could be completely compliant with The Joint Commission (TJC) and other standards that require a backup generator, and still face significant operational risks should power be disrupted.
Another important critical system is water supply. A tertiary care hospital could consume more than 100,000 gal/day. Water is needed for drinking, bathing, ice, cleaning, waste disposal, heating, and air conditioning. The availability of drinking water within the first few days of hazard impact could affect the decision to shelter in place versus evacuate.
Mitigation plans may include stockpiling bottled water or installing a water tower and/or wells (depending upon location). Regardless of the actions in the mitigation plan, possessing some form of alternate water supply may be the difference between a hospital remaining open or needing to be evacuated. Hospitals should also consider having a priority resupply contract for water in the event that the stockpile on hand is reduced or deleted from use. Hospital leaders must also understand that indirect hazard impact could have an affect on their facility. During Hurricane Katrina, some hospitals that were not affected by direct flooding were without water for up to 10 days due to the damage to water infrastructure of New Orleans.3 Katrina showed that hospitals depend heavily on citywide infrastructure—electrical power, communications, water, security, and transportation—which can be disrupted by an areawide disaster.4
Hospital planners also must ensure the resiliency of HVAC systems. Air flow control to establish negative pressure for isolation from external contamination resulting from industrial accidents or terrorist events should be considered when evaluating HVAC capability. During the 2004 and 2005 hurricane seasons, hospitals found themselves facing a unique threat while sheltering in place: the elevation of temperatures due to lack of backup generators that controlled the HVAC systems. In addition, without the use of HVAC, a hospital is susceptible to mold growth.3
Because hospitals increasingly rely upon IT for business as well as patient care operations, careful continuity planning is required, with multiple contingencies including emergency power, communications, mirror computing sites, and off-site data storage. Maintaining communications during disasters can prove to be especially difficult. According to the Florida Hospital Associations 2005 report, the loss of communication capability during the 2004 hurricane season increased its awareness of the need to bridge the communication gap between hospitals and their communities.1 In 1 incident during the aftermath of Hurricane Katrina, a hospital employees husband stood on the roof of the hospital and transmitted a "mayday" alert through his ham radio to anyone who was listening.3
Although disruption to these 4 mission critical systems can bring activities within a hospital to a halt, there are many other systems that must be addressed, including medical gases, vacuum, oxygen, fire alarms, sprinklers, public address, and waste disposal.
According to the International Strategy for Disaster Reduction and the World Health Organizations 2008–2009 World Disaster Reduction Campaign, "The price we pay for the failure of hospitals or health care facilities due to disasters is too high. In comparison, the cost of making hospitals safe from disasters is tiny."2
Strengthening the infrastructure through continuity planning provides the basis for comprehensive emergency management. The cost–benefit ratio for building and enhancing health care systems infrastructures competes, at times, with many other facility projects. Although the cost for implementing protective measures into the construction of new health facilities increases costs about 4% overall, "retrofitting nonstructural elements" increases costs by only 1%.2
In 2007, the Veterans Health Administration partnered with the consulting firm Booz Allen Hamilton to assess the status of emergency management programs across the system. To conduct these assessments, evaluation teams visited Department of Veterans Affairs (VA) medical centers across the nation and conducted facilitated group interviews, individual interviews, tabletop exercises, and capability demonstrations in an attempt to understand the emergency preparedness–related capabilities of VA medical centers. The assessment teams were particularly impressed with the mitigation and contingency planning of hospitals located in Florida and the Caribbean.
VA hired an architectural/engineering firm in 2004 to determine how to improve the resiliency of mission critical systems in all facilities at risk for hurricanes, including all of the VA medical centers in Florida and Puerto Rico. The Veterans Integrated Service Network identified $67 million to strengthen mission critical systems by mitigating a number of the highest risk hazards to these systems. More than $34 million of these mitigation activities have been funded and are in various stages of design and construction. Once completed, these will give the medical facilities the abilities to maintain electric, water, HVAC, IT, and many other mission critical systems for approximately 7 days.
So, what should the hospital consider? In what order? The following is a 9-step process that begins with a basic analysis of the present capabilities and an identification of known gaps in coverage or infrastructure deficiencies. Then, after the limitations and potential weaknesses in the system are identified, plans can be put in place to improve the issues, train staff, conduct exercises, and evaluate the results. This will lead to a high-quality approach to developing contingency and continuity plans.
Facility leaders often ask how they can assess the continuity plans effectiveness. There are a number of process and analytical measures that could apply. To determine overall program effectiveness, leaders could monitor adherence to the above 9 steps. Most of the performance measures of mission critical systems are defined primarily by the TJC and National Fire Protection Association. These standards provide an excellent framework for assessing their effectiveness. Other potential measures could include return on investment, levels of contingency plans, and evaluations of exercises or real events.
All of the authors are with Booz Allen Hamilton.
Authors Disclosures
The authors report no conflicts of interest.
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D. Hanfling and J. L. Hick Hospitals and the Novel H1N1 Outbreak: The Mouse That Roared? Disaster Med Public Health Preparedness, December 1, 2009; 3(Supplement_2): S100 - S106. [Full Text] [PDF] |
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