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Background
The anaesthetic work environment is often a complex and dynamic place; a range of tasks both mental and practical are required to be undertaken simulataneously1. When life and death decisions are made in these conditions, human error, equipment failure and organisational disturbances can lead to disastrous consequences2-4. Thus, patient safety is becoming of increasing interest to the medical profession5-7. A recent critical incident analysis in anaesthesia found, perhaps unsurprisingly, that human error was involved in 82% of preventable adverse events8; with distraction related to an estimated 43% of medical errors9. These statistics indicated the need for studying the work, tools and the environment of the anaesthetist to improve patient safety.
Concentration and attention to detail are prerequisites of safe anaesthetic practice, therefore it is imperative that we learn and understand how their breakdown, in a busy high pressured environment, leads to medical errors.
Research has been conducted into the frequency, cause and effect of distraction and interruption in the operating theatre for surgical teams7,10-12 but has yet to be studied for the anaesthetist.
Aims and Objectives
1) To measure the timing and frequency of distractions and interruptions to the anaesthetist
2) To explore the cause and effect of the relationships between concentration, distraction, interruption and error
3) To see if there are any strategies already in place which anaesthetists use to reduce distraction and interruption
4) To refine and develop the methodology for studying this topic to inform a future larger study
Methods
The research project will run over a four month period.
Phase 1 – Preparation (Approximately 4 weeks)
All anaesthetists at the Royal Lancaster Infirmary will receive a copy of the research proposal and the participant information sheet and will be contacted for consent to a structured interview and for observational work to be conducted in the theatre session.
Structured interviews will be held with anaesthetists to discover what types of distraction/interruptions are encountered and at which point in the anaesthetic process anaesthetists believe them to be most hazardous to patient safety. Any existing strategies that are used to reduce distraction and interruption will be explored. The structured interviews will be approximately 15 minutes in duration.
An anaesthetic task recording sheet will be produced to assist in data collection. Categories identified from previous research11 to record event sources include:
1. Telephone ringing
2. Bleeps/Pagers
3. An action to the radio
4. Case irrelevant communication
5. Communication difficulties
6. External staff
7. Equipment – unavailable or failing
8. Work environment
9. Procedural
10. Movement in front of the anaesthetic machine
Operating theatre managers will also receive a copy of the research proposal.
Phase 2 – Data Collection (Approximately 5 Weeks)
Using the anaesthetic task recording sheet, stopwatch, pen and paper the observational work will be conducted by one observer in the anaesthetic room and operating theatre to record the frequency, timing, cause and effect of distractions or interruptions on the anaesthetist. Data collection will commence when the anaesthetist enters the anaesthetic room and will finish once the anaesthetist leaves recovery. To enable comparisons between studies definitions of distraction and interruption are to be taken from previous research10,11. Distraction being defined as a break in attention, observed by orientating away from a task or verbal response and an interruption defined a break in task activity, observed by the cessation of a task.
Fifty operations will be observed. The observations will occur during both morning and afternoon sessions and of varied surgical lists. A proposed distribution of specialties is as follows:
Vascular (6)
Orthopaedic (6)
General Surgical (6)
Obstetrics (6)
Gynaecology (6)
Urology (6)
Emergency (7)
Day case (7)
The total of 50 anaesthetics was chosen based on previous research11,12 and to take into account the time frame assigned to data collection.
Phase 3 – Data Management and Analysis (Approximately 3 Weeks)
The frequency, timing, cause and effect of distractions and interruptions can then be classified and statistically analysed.
No patient details will be collected.
Phase 4 – Write Up (Approximately 3 Weeks)
Phase 5 – Dissemination and Outcome
The results of this research will be presented at a local meeting for the anaesthetic department and at the North West regional meeting for academic trainees. It is hoped that this project will form a basis for further research into distractions and interruptions in anaesthetic practice, which could lead to publication in a peer-reviewed journal.
Once the frequency, cause and effect of distractions and interruptions are known a strategy for managing these could be put into place for further evaluation. This could include practical solutions and recommendations for further training of theatre staff and the re-organising of workflow.
Ethical Issues
The research project is subject to trust and NHS Research Ethics Committee approval.
Resource Requirements
The co-operation and permission of all clinical staff who work in theatres will be required. We have already secured the co-operation of the members of the Department of Anaesthesia at the Royal Lancaster Infirmary.
References
1. Leedal JM, Smith AF. Methodological approaches to anaesthetists’ workload in the operating theatre. British Journal of Anaesthesia 2005;94(6):702-709
2. Aggarwal R, Undre S, Moorthy K, Vincent C, Darzi A. The simulated operating theatre: comprehensive training for surgical teams. Quality and Safety in Health Care 2004;13(Supplement 1):i27-i32
3. Manser T, Wehner T. Analysing Action Sequences: Variations in Action Density in the Administration of Anaesthesia. Cognition, Technology and Work 2002;4:71-81
4. Stone R, McCloy R. Ergonomics in medicine and surgery. British Medical Journal 2004;328:1115-1118
5. Hales BM, Pronovost PJ. The Checklist-a tool for error management and performance improvement. Journal of Critical Care 2006;21:231-235
6. Manser T, Wehner T, Rall M. Anaesthetists at work: analysing the operational composition of action sequences 2002. 4th International Conference on Methods and Techniques in Behavioural Research Amsterdam. [www.noldus.com/events/mb2002/program/abstracts/manser.html (accessed 19th April 2009)]
7. Karanfil L, Bahner J, Most R. Creating a patient-safe environment in a perioperative setting. Association of periOperative Registered Nurses 2005;81(1);168-176
8. Bogner S. Human Error in Medicine. New Jersey: Lawrence Erlbaum Associates 1994
9. Collins S, Currie L, Bakkens S, Climino JJ. Interruptions during the use of a CPOE system for MICU rounds. American Medical Informatics Association Annual Symposium Proceeding Archive 2006:2006;895
10. Healey AN, Primus CP, Koutantji M. Quantifying distraction and interruption in urological surgery. Quality and Safety in Health Care 2007;16:135-139
11. Healey AN, Sevdalis N, Vincent CA. Measuring intra-operative interference from distraction and interruption observed in the operating theatre. Ergonomics 2006;49(5-6);589-604
12. Sevdalis N, Healey AN, Vincent CA. Distracting communications in the operating theatre. Journal of Evaluation in Clinical Practice 2007;13(3):390-394 |