In control or along for the ride? Lessons for anesthesiologists from air traffic control.

PURPOSE OF REVIEW: Anesthesia professionals work in an unpredictable, rapidly changing environment in which they are quickly diagnose and manage uncommon and life-threatening critical events. The perioperative environment has traditionally been viewed as a deterministic system in which outcomes can be predicted, but recent studies suggest that the operating room behaves more like a complex adaptive system, in which events can interact and connect with each other in unpredictable and unplanned ways. RECENT FINDINGS: The increasing complexity of the healthcare environment suggests that the complete elimination of human error is not possible. Complex clinical situations predispose to errors that are the result of high workload, decision making under stress, and poor team coordination. The theory behind complex adaptive systems differs from medicine's traditional approach to safety and highlights the importance of an institutional safety culture that encourages flexibility, adaptability, reporting and learning from errors. Instead of focusing on standardization and strict adherence to procedures, clinicians can improve safety by recognizing that unpredictable changes routinely occur in the work environment and learning how resilience can prevent adverse events. SUMMARY: A better understanding of automation, complexity, and resilience in a changing environment are essential steps toward the safe practice of anesthesia.

COVID-19, Personal Protective Equipment, and Human Performance.

Clinicians who care for patients infected with coronavirus disease 2019 (COVID-19) must wear a full suite of personal protective equipment, including an N95 mask or powered air purifying respirator, eye protection, a fluid-impermeable gown, and gloves. This combination of personal protective equipment may cause increased work of breathing, reduced field of vision, muffled speech, difficulty hearing, and heat stress. These effects are not caused by individual weakness; they are normal and expected reactions that any person will have when exposed to an unusual environment. The physiologic and psychologic challenges imposed by personal protective equipment may have multiple causes, but immediate countermeasures and long-term mitigation strategies can help to improve a clinician's ability to provide care. Ultimately, a systematic approach to the design and integration of personal protective equipment is needed to improve the safety of patients and clinicians.

Automation failures and patient safety.

PURPOSE OF REVIEW: The goal of automation is to decrease the anesthesiologist's workload and to decrease the possibility of human error. Automated systems introduce problems of its own, however, including loss of situation awareness, leaving the physician out of the loop, and training physicians how to monitor autonomous systems. This review will discuss the growing role of automated systems in healthcare and describe two types of automation failures. RECENT FINDINGS: An automation surprise occurs when an automated system takes an action that is unexpected by the user. Mode confusion occurs when the operator does not understand what an automated system is programmed to do and may prevent the clinician from fully understanding what the device is doing during a critical event. Both types of automation failures can decrease a clinician's trust in the system. They may also prevent a clinician from regaining control of a failed system (e.g., a ventilator that is no longer working) during a critical event. SUMMARY: Clinicians should receive generalized training on how to manage automation and should also be required to demonstrate competency before using medical equipment that employs automation, including electronic health records, infusion pumps, and ventilators.

Effects of vaccination status in the United States on willingness to undergo surgery during a pandemic: A prospective survey study.

PURPOSE OF THE RESEARCH: Modifiable and non-modifiable patient and hospital characteristics may affect willingness to undergo surgery during a pandemic. We hypothesized that vaccination of hospital staff and patients, type of surgery, and length of stay, would affect willingness to undergo a surgical procedure. 2006 adult participants in the United States were recruited electronically using Amazon's ® Mechanical Turk ® and answered a 26-item survey in English about hypothetical surgery, manipulating requirements for: staff vaccination, patient vaccination, surgical urgency, and time in hospital. They also answered questions about their opinions about vaccination, personal vaccination status, and demographics. PRINCIPLE RESULTS: Participants are more willing to undergo surgery if they have been vaccinated, if staff vaccinations are required, and if surgery is lifesaving and outpatient. MAJOR CONCLUSIONS: Willingness to undergo surgery varies with hospital staff and patient vaccination. This may inform policies for vaccination, boosters, and resource allocation.