What is a sentinel event?

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Last updated: April 6, 2025View editorial policy

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From the Guidelines

A sentinel event is defined as an unexpected occurrence that involves death or serious physical or psychological injury or the risk thereof, and it is crucial to identify and investigate these events to improve patient safety systems. According to the Joint Commission, as cited in the study by 1, a sentinel event includes loss of limb or function, and the phrase "or the risk thereof" includes any process variation for which a recurrence would carry a significant chance of a serious adverse outcome. The study by 1 emphasizes the importance of reporting sentinel events to the Joint Commission and conducting thorough discussions and investigations to prevent similar incidents in the future.

Some key points to consider when dealing with sentinel events include:

  • Identifying the root cause of the event through a thorough analysis
  • Implementing preventive measures to minimize the risk of similar events occurring
  • Developing action plans to address systemic problems and improve patient safety systems
  • Ensuring mandatory reporting requirements are met and that all relevant parties are notified, as seen in the study by 1
  • Fostering a culture of transparency and accountability within healthcare organizations, as highlighted in the study by 1

It is essential to note that sentinel events can have severe consequences, including patient death or permanent harm, and therefore, it is crucial to take immediate action to investigate and respond to these events. The study by 1 also emphasizes the importance of examining common-cause and specific-cause variation in aggression management and seclusion and restraint, which can help identify areas for improvement and reduce the risk of sentinel events.

In real-life clinical practice, healthcare professionals must prioritize patient safety and take a proactive approach to preventing sentinel events. This can be achieved by:

  • Following established guidelines and protocols
  • Engaging in ongoing education and training
  • Encouraging open communication and reporting of near misses or adverse events
  • Participating in root cause analyses and quality improvement initiatives, as recommended by the study by 1

From the Research

Definition of a Sentinel Event

  • A sentinel event is a significant unexpected occurrence involving death or serious physiological or psychological injury, or the risk thereof [@\5@].
  • The term is often used in the context of medical errors or adverse events that have serious consequences for patients [@\2@, @\3@].

Characteristics of Sentinel Events

  • Sentinel events are typically unexpected and may involve serious injury or death [@\2@].
  • They can be caused by various factors, including human error, system failures, or equipment malfunctions [@\1@, @\4@].
  • Sentinel events can have a significant impact on patient safety and quality of care [@\5@].

Examples of Sentinel Events

  • Medication errors that result in serious harm or death [@\1@].
  • Surgical errors that lead to complications or adverse outcomes [@\2@, @\3@].
  • Diagnostic errors that result in delayed or inappropriate treatment [@\4@].

Importance of Sentinel Events

  • Sentinel events can serve as a catalyst for improving patient safety and quality of care [@\5@].
  • They can help identify system failures or areas for improvement in healthcare processes [@\1@, @\2@].
  • Analyzing sentinel events can provide valuable insights into the causes of medical errors and adverse events [@\3@, @\4@].

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

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Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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