Mary Jarzebowski, Megan Dorsey, and William Cederquist are Staff Physicians; Tom Curran is Director, Surgical Intensive Care Unit; Dru Claar is Director, Medical Intensive Care Unit; Elisa Derrig is Chief CRNA, Section of Anesthesiology; Weston Dick is Chief, Facilities Management Service; Katrina Push is a Nurse Manager, Post-Anesthesia Care Unit; Mark Hausman is Chief of Staff; and Tamar Lake is Chief, Section of Anesthesiology and Perioperative Care; all at the Veterans Affairs Ann Arbor Healthcare System in Michigan. Mary Jarzebowski is a Clinical Assistant Professor; Tom Curran, Megan Dorsey, and William Cederquist are Clinical Instructors; Mark Hausman is an Assistant Professor; all in the Department of Anesthesiology, University of Michigan. Dru Claar is a Clinical Assistant Professor, Department of Pulmonary and Critical Care Medicine at the University of Michigan. Mark Hausman is Assistant Dean for Veterans Affairs, University of Michigan Medical School. Correspondence: Mary Jarzebowski (mjarzebo@med.umich.edu)
Author disclosures The authors report no actual or potential conflicts of interest with regard to this article.
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Personal protective equipment (PPE) was of paramount importance in this open care unit. Airborne precautions were used in the entire patient care area. Powered air-purifying respirators (PAPRs) were used when possible to conserve the supply of N95 masks. Each health care worker was issued a reusable PAPR hood, which was cleaned by the user after each use by wiping the exterior of the entire hood with virucidal wipes. The brand and active ingredient of the virucidal wipes varied by availability of supplies, but the “virus kill time” was clearly labeled on each container. Each health care worker had a paper bag for storing his or her PAPR hood between usage to allow drying and ventilation. PAPR units were charged in between uses and shared by all clinical staff. Two layers of nonsterile gloves were worn.
Because of the open care area, attention had to be given to adhere to infection control policies if health care workers wanted to care for multiple patients while in the area. A new gown was placed over the existing gown, and the outer layer of gloves was removed. The under layer of gloves was then sanitized with hand sanitizer, and a new pair of outer gloves was then worn.
Equipment
Much of the ICU-level equipment needed was already present within the operating room (OR) area. Existing patient monitors were used and connected to a central monitoring station present in the nurses station. Relevant contents of the ICU storage room were duplicated and placed on shelves in the patient care area. Out-of-use anesthesia carts were used for a dedicated COVID-19 invasive line cart. A designated ultrasound with cardiac and vascular access probes was assigned to the PACU-ICU. Anesthesia machines were brought into the PACU-ICU and prepared with viral filters in line to prevent contamination of the machines, in keeping with national guidance from the American Society of Anesthesiologists and Anesthesia Patient Safety Foundation.8
Multidisciplinary Staffing Model
With the reduced surgical and procedural case load due to halting nonemergent operations, the Anesthesiology and Perioperative Care Service was able to staff the PACU-ICU with critical care anesthesiologists, nurse anesthetists, residents, and PACU and procedural nurses without hindering access to emergent surgeries. A separate preoperative area was maintained with an 8-bed capacity for both preoperative and postoperative management of non-COVID-19 surgical patients.
The staffing model was designed using guidance on the expansion of ICU staffing with non-ICU resources from the Society of Critical Care Medicine as well as local guidance on appropriate nursing ratios (Figure 3).9 Given the high acuity and dynamic nature of COVID-19 coupled with the unique considerations that exist using anesthesia machines as long-term ICU ventilators, 24-hour inhospital attending intensivist coverage was provided in the ICU by 4 critical care anesthesiologists who rotated between 12-hour day and night shifts. The critical care anesthesiologists led a team of anesthesiology and surgery residents and ICU advanced practice providers dedicated solely to the PACU-ICU. Non-ICU anesthesiologists helped with procedures such as intubation and invasive line placement and provided coverage of the ICU patients during sign-out and rounding. Certified registered nurse anesthetists (CRNAs) performed intubations and helped offload respiratory therapists (one of the resources most in shortage) by managing and weaning ventilators and were instrumental in prone positioning of patients. Dedicated ICU nurses were deployed every shift to oversee the unit and act as a resource to the PACU nurses. Fortunately, many PACU nurses had prior ICU training and experience, and nurses from outpatient areas also were recruited to help with patient care. Together, they provided direct patient care. OR nurses assisted with delivering supplies, medications and transporting specimens to the laboratory, as no formal hospital tube station was present in the PACU.
Because of the open-unit setting, nurses practiced bundled care and staggered their turns in the patient care area. For example, a nurse who entered to administer medication to patient A, could then receive communication to check the urine output for patient B and do so without completely doffing and redonning. This allowed preservation of PPE and reduced time in PPE for the health care providers (HCPs).
A scheduled daily meeting included staff from PACU-ICU; Medical ICU (MICU), which also treated patients with COVID-19; and the Palliative Care Service (Figure 4). Patients with single-organ failure were preferentially sent to PACU-ICU, as the ability to do renal replacement therapy (RRT) in an open unit proved difficult. The palliative care team and VAAAHS social workers assisted both MICU and PACU-ICU with communicating with patients’ families, which provided a great help during a clinically demanding time. Physical therapists increased their staffing of the ICU to specifically help with mobilization of patients with COVID-19 and acute respiratory distress syndrome, given the prolonged mechanical ventilation courses that were seen. Other consulting services frequently involved included infectious disease and nephrology.
