Anesthesia closed claim reviews are retrospective analyses of malpractice claims that have been resolved, either through compensation or dismissal. These reviews are a critical tool across healthcare systems to help understand the causes of anesthesia-related adverse events, to identify patterns of error, and to implement strategies to improve patient safety.
During the 1980s, anesthesia providers faced a troubling surge in malpractice insurance premiums. The specialty was under pressure, both from a financial and reputational perspective. In response, the American Society of Anesthesiologists (ASA) launched the Closed Claims Project, which was an initiative aimed at creating a detailed database of resolved claims to better understand what went wrong, why it happened, and how to prevent similar events in the future. This project marked a clear shift from reactive litigation defense to proactive patient safety improvement initiatives 1,2.
Consistently, findings from anesthesia closed claims reviews have shown that adverse outcomes often arise from more than mere technical errors. Indeed, many claims tend to involve poor decision-making, delayed recognition of complications, inadequate patient monitoring, and failures in communication across teams of healthcare providers. These reviews have effectively exposed vulnerabilities in the system that may not be immediately obvious during routine care. Even minor lapses in following protocols can have serious or fatal consequences, highlighting the importance of strong collaborative practice and clinical diligence 2,3.
Closed claim reviews make a significant contribution through their influence on modern anesthesia practice. Insights from data have led to the widespread adoption of technologies such as pulse oximetry and capnography. These are now standard in monitoring patients during anesthesia. The emphasis on using pre-anesthetic checklists, standardized handoff communication, and emergency response protocols also emerged as key interventions rooted in lessons learned from past claims. Simulation training and continuous professional development programs now also very often incorporate scenarios based on real-world claims to better prepare anesthesiologists for rare but high-risk situations 2,4–6.
While highly informative, anesthesia closed claim reviews are not without limitations. A core concern is selection bias, as not all adverse events result in claims, and those that do may not reflect the full spectrum of complications occurring in practice. Additionally, since malpractice claims can take years to resolve, the data may not always reflect current clinical environments. Legal constraints and incomplete documentation in claim files can tend also to limit the depth of clinical analysis. As a result, these reviews are best leveraged in conjunction with real-time incident reporting systems and prospective quality improvement efforts 2,7,8.
Anesthesia closed claim reviews have proven to be an invaluable resource in understanding and mitigating risks within the specialty. By systematically studying past errors, the anesthesia community has been able to drive meaningful change in education, practice, and policy.
References
- Anesthesia Quality Institute. https://www.asahq.org/aqi/registries/closed-claims.
- Lee, L. A. & Domino, K. B. The Closed Claims Project: Has it influenced anesthetic practice and outcome? Anesthesiology Clinics of North America 20, 485–501 (2002). DOI: 10.1016/s0889-8537(02)00006-8
- Non-Operating Room Anesthesia: Closed Claim Review and Analysis. Anesthesia Patient Safety Foundation https://www.apsf.org/article/non-operating-room-anesthesia-closed-claim-review-and-analysis/.
- Pandya, N. K. & Sharma, S. Capnography and Pulse Oximetry. in StatPearls (StatPearls Publishing, Treasure Island (FL), 2025).
- Looke, T. D. et al. The pre-anesthesia induction patient safety (PIPS) checklist: Testing dynamic versus static implementation strategies. Human Factors in Healthcare 5, 100060 (2024). DOI: 10.1016/j.hfh.2023.100060
- Simulation Education. https://www.asahq.org/education-and-career/educational-and-cme-offerings/simulation-education.
- Complications Associated With Regional Anesthesia: Review of ASA Closed Claims. Anesthesia Patient Safety Foundation https://www.apsf.org/article/complications-associated-with-regional-anesthesia-review-of-asa-closed-claims/.
- Metzner, J., Posner, K. L., Lam, M. S. & Domino, K. B. Closed claims’ analysis. Best Practice & Research Clinical Anaesthesiology 25, 263–276 (2011). DOI: 10.1016/j.bpa.2011.02.007



Recent Comments