Where is the defect in a scenario where a patient scheduled for a bilateral cochlear implant (cochlear implant) is cancelled, but the surgeon is not informed and instead performs a unilateral procedure on the wrong side, initially planning to operate on the left side but opening on the right side?

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From the Guidelines

The defect in this scenario is a booking defect. This error occurred because there was a change in the surgical schedule (cancellation of the bilateral implant case) and the unilateral left-side implant patient was moved up without proper communication to the surgeon. The fundamental issue is not with the marking process itself, but with the failure of the scheduling system to accurately communicate which patient was on the operating table. In a proper booking system, the surgeon would have been informed about the schedule change and would have reviewed the correct patient's information before beginning the procedure. While marking is important to prevent wrong-site surgery, in this case the primary breakdown occurred earlier in the process when the schedule was changed without proper notification, leading to confusion about which patient was being operated on rather than which side of the same patient needed surgery. As suggested by experts in critical situations, the use of closed-loop communication can reduce morbi-mortality and limit the incidence of adverse events 1. In this scenario, the lack of proper communication between the scheduling team and the surgeon led to the mistake, highlighting the importance of effective communication in preventing such errors. Additionally, guidelines on consent for anaesthesia emphasize the importance of providing patients with sufficient information and time to make informed decisions, and the duty of the anaesthetist to ensure that the information is understood 1. In this case, the failure to communicate the schedule change to the surgeon and the patient led to a breakdown in the informed consent process, further supporting the conclusion that the defect is a booking defect. Key points to consider in this scenario include:

  • The importance of closed-loop communication in preventing adverse events 1
  • The need for effective communication between the scheduling team and the surgeon
  • The importance of providing patients with sufficient information and time to make informed decisions 1
  • The duty of the anaesthetist to ensure that the information is understood 1

From the Research

Analysis of the Scenario

The scenario presents a case where a patient scheduled for bilateral cochlear implantation is cancelled, but the surgeon is not informed and proceeds with the operation on the wrong side. The question is to identify the defect in this scenario.

Possible Defects

  • Booking defect: This refers to an error in the scheduling or booking process, which can lead to mistakes such as wrong-site surgery.
  • Marking defect: This refers to an error in the preoperative marking of the surgical site, which can also lead to wrong-site surgery.

Evidence from Studies

Studies have shown that wrong-site surgery can occur due to various factors, including inadequate preoperative marking 2, 3, 4, 5, 6. However, in this scenario, the defect is more likely related to a booking error rather than a marking error. The fact that the surgeon was not informed about the cancellation of the bilateral procedure and proceeded with the operation on the wrong side suggests a breakdown in communication or scheduling.

Key Points

  • Wrong-site surgery can occur due to various factors, including booking errors and marking errors.
  • Preoperative marking is an important step in preventing wrong-site surgery, but it is not foolproof 3, 4, 6.
  • Booking errors can lead to mistakes such as wrong-site surgery, highlighting the importance of effective communication and scheduling processes.

Based on the analysis, the defect in this scenario is more likely a booking defect rather than a marking defect. The error occurred due to a breakdown in communication or scheduling, rather than an issue with preoperative marking.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

The importance of side marking in preventing surgical site errors.

The International journal of risk & safety in medicine, 2014

Research

Current practice on preoperative correct site surgical marking.

Journal of perioperative practice, 2010

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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