Pediatric Integrated Delivery System's Experience With Pandemic Influenza A (H1N1)
Published Online: October 26, 2012
Evan S. Fieldston, MD, MBA, MSHP; Richard J. Scarfone, MD; Lisa M. Biggs, MD; Joseph J. Zorc, MD, MSCE; and Susan E. Coffin, MD, MPH
An integrated delivery system (IDS) is a network of physicians and hospitals that provides a continuum of healthcare services.1 Although integration is promoted primarily for general system improvement and accountable care,2,3 its utility may be particularly relevant to managing care delivery during a pandemic, a period when surge capacity is tested.4,5 The Agency for Healthcare Research and Quality defines surge capacity as “A healthcare system’s ability to rapidly expand beyond normal services to meet the increased demand for qualified personnel, medical care and public health in the event of large-scale public health emergencies or disasters.”6 At the 2006 Academic Emergency Medicine Consensus Conference, a special breakout session titled “Science of Surge Capacity” was convened to define the essential components of surge capacity and outline key considerations when planning for large-scale public health emergencies.7 Three essential elements were described in the resulting conceptual model: staff, stuff (equipment, pharmaceuticals, and supplies), and structure (both physical structure and management infrastructure). In situations that exceed available human or physical resources, the latter element—an organization’s ability to effectively match resources to patient care needs—becomes paramount.
Like other institutions, particularly since 2001, The Children’s Hospital of Philadelphia (CHOP), an IDS dedicated to pediatric care, has focused attention on preparedness and surge capacity across its geographic network with particular concern for these 3 elements. CHOP’s experience with the influenza A (H1N1) pandemic of 2009 illustrates the benefits of an IDS in the face of a pandemic. Using the Academic Emergency Medicine Consensus Conference conceptual model of staff, stuff, and structure as a framework for our experience, we detail the planning and execution, operational experiences, and lessons learned. It is our hope that these insights will inform health system leadership, clinicians, and policy makers as they plan for future infectious and noninfectious surges of activity.
SETTING AND PREPARATORY WORK
The Children’s Hospital of Philadelphia has centralized management of primary, specialty, and tertiary pediatric care facilities. For the fiscal year that included fall 2009, CHOP had a 459-bed main hospital, a 70-bed emergency department (ED), 28 primary care centers, and 9 specialty care facilities (Figure 1). Employing more than 9900 personnel, the CHOP network serves approximately 30% of the 1.6 million children in the Delaware Valley region via more than 1.1 million patient visits each year, including 85,690 ED visits and 28,106 hospitalizations. CHOP owns all hospital and practice locations, and employs all staff directly (except 670 faculty physicians employed by affiliated University of Pennsylvania practice plans). CHOP also operates the After Hours Program (AHP), a service designed to have specially trained nurses provide telephone triage, assessment, and advice using computerized, standardized protocols for a parent concerning their ill child. The AHP handles more than 100,000 calls per year.
In February 2009, prior to the influenza A (H1N1) outbreak in Mexico, administrative and clinical leadership from emergency medicine, general pediatrics, and primary care began routine planning for high wintertime nonurgent volume. Soon after this group convened, H1N1 emerged worldwide and spread in spring 2009, ultimately affecting enough children and adults to be classified as a pandemic.8-12 In Philadelphia, the first H1N1-infected patient was identified in April. From April to June, CHOP ED and inpatient areas saw higher volumes than typical for the season, and there was a spike in influenza A–positive respiratory viral tests (eAppendix, available at www.ajmc.com). Based on guidance from CHOP and Centers for Disease Control and Prevention infectious disease experts, as well as on international experiences with H1N1, CHOP clinicians anticipated that a second wave of infection would emerge in the late summer or fall concordant with the return of children to school.13 In response, in May 2009, CHOP’s Strategic Planning office initiated planning activities to prepare CHOP’s multisite network for a second, even larger surge of H1N1-related activity. The office convened a special meeting of representatives from inpatient and outpatient clinical areas, Environmental Services, Facilities, the Patient Access and Revenue Cycle division, and Security. CHOP’s Emergency Preparedness team took a central role in plan development and coordination of effort across the institution. At their direction, key areas, including the main hospital, ED, pediatric intensive care unit (PICU), primary care centers, and AHP developed 3-tier (green-yellow- red zone) plans for handling successive levels of high volume (Figure 2, Table). Such “traffic-light” graded response schemata are commonly used in clinical and operational care to summarize graded responses.14,15
During the 3-week period from October 19 to November 10, 2009, the entire CHOP system experienced H1N1-related high volumes, with specific locations experiencing several days of double the typical volumes for visits or calls. This 3-week period (the surge) coincided with Centers for Disease Control and Prevention influenza surveillance reports of high levels of H1N1 activity in region 3, which includes Philadelphia.16
Staff and Structure
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