News Release 

Locally informed simulation model predicts hospital capacity needs during COVID-19

New COVID-19 content from Annals of Internal Medicine

American College of Physicians

Below please find a summary and links of new coronavirus-related content published today in Annals of Internal Medicine. The summary below is not intended to substitute for the full article as a source of information. A collection of coronavirus-related content is free to the public at http://go.annals.org/coronavirus.

1. Locally informed simulation model predicts hospital capacity needs during COVID-19 pandemic

Free content: http://annals.org/aim/article/doi/10.7326/M20-1260

A locally informed simulation model may help hospital administrators better prepare for capacity strain during the COVID-19 pandemic. The COVID-19 Hospital Impact Model for Epidemics, or CHIME, includes a user-friendly interface so that hospital leaders can, at any time, independently estimate the time until their hospitals' capacities would likely be exceeded. The model also predicts the intensity of the surge, including need for ward and intensive care unit (ICU) beds and ventilators, and the duration of time that each hospital would experience a demand in excess of capacity, enabling users to plan for upcoming equipment and clinical staffing demands. A brief research report is published in Annals of Internal Medicine.

Recognizing a need in their own hospital, researchers at the University of Pennsylvania Health System found that an SIR epidemiologic model could be used to make short-term projections about hospital capacity strain early in the course of an epidemic. The team explored a range of scenarios based on published data from other regions of the world and quickly developed a flexible interface that provides most likely estimates, as well as best- and worst-case estimates in real time. Their model informed many key health system decisions, such as reducing elective surgeries and declining outside transfers, well before the system was actually strained, and also provided multiple other insights that helped health system leaders prepare, react, and respond effectively.

The CHIME tool, with development led by the Penn Predictive Healthcare Team, is available for free to the public at http://penn-chime.phl.io.

Media contacts: The lead author, Gary Weissman, MD, MSHP, and his coauthors, can be reached through Lauren Ingeno at Lauren.Ingeno@Pennmedicine.upenn.edu.

Also new in Annals:

Intersecting U.S. Epidemics: COVID-19 and Lack of Health Insurance Steffie Woolhandler, MD, MPH; David U. Himmelstein, MD
Ideas & Opinions
Free content: http://annals.org/aim/article/doi/10.7326/M20-1491
Media contact: The lead author, Steffie Woolhandler, MD, MPH, can be reached through Clare Fauke at clare@pnhp.org.

Fighting COVID-19: Enabling Graduating Students to Start Internship Early at Their Own Medical School Dawn E. DeWitt, MD
Ideas & Opinions
Free content: http://annals.org/aim/article/doi/10.7326/M20-1262
Media contact: The author, Dawn E. DeWitt, MD, can be reached directly at awn.dewitt@wsu.edu.

The Role of Medical Students during the COVID-19 Pandemic David Gibbes Miller, MSc; Leah Pierson, BA; Samuel Doernberg, BA
Ideas & Opinions
Free content: http://annals.org/aim/article/doi/10.7326/M20-1281
Media contact: The lead author, David Gibbes Miller, MSc, and his coauthors, can be reached directly through Leah Pierson directly at Leah_Pierson@hms.harvard.edu.

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