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1. Technology adjuncts to preventing retained foreign objects.
2. 2
3. Is it possible to achieve and maintain zero retained foreign objects with manual and human systems alone?
4. 4 Problems with manual/human systems Drift
Distraction
Human error
Not everything is counted
At least 88% of retained sponges had a “correct count”
5. 5 Technical adjuncts Bar-coded sponges: augmented count
Radio frequency (RF): detection of sponges
Radio frequency (RF): augmented count + detection (RFID)
6. 6 Bar coded sponges Bar code on sponge
Scan in/scan out
Message when counts don’t match
Mismatched counts must be reconciled manually
If sponge not scanned in and not removed, it will not be detected
Can keep a record of each sponge
7. 7 Radio frequency detection A small (size of a grain of rice) RF chip in each sponge
Counting processes remain unchanged
Wand the patient prior to closure; a signal indicates presence of a sponge
8. 8 An RF chip (size of a penny) in each sponge
Scan in/scan out
Message when counts don’t match
Wand the patient prior to closure; a signal indicates presence of a sponge
If sponge not scanned in and not removed, it will be detected by wanding
Can keep a record of each sponge Radio frequency identification
9. 9 Low-tech adjuncts Hanging sponge clips
Numbered sponges
Other?
10. 10 Possible benefits of technology Reduce/eliminate retained sponges and related equipment
Reduce throughput in the OR due to less time needed to “search”
Earlier closure of the wound
Fewer x-rays
11. 11 Possible unintended consequences of technology Introduce new sources of error/failure
Systems depend on user to use them correctly
Introduce a false sense of security
Diversion of attention
Inadvertent use of “incorrect” sponge
Adding to the waste stream
12. 12 Evaluating and comparing the systems There will be no randomized, double-blind comparisons: even with manual systems, retained sponges occur in the order of 10-3 (~1/8,500 cases)
Bar coded sponges reduce the incidence by an order of magnitude to 10-4 (~1/58,000 cases)
RF is at least as effective as bar coding and may be more effective
Reference: Regenbogen, S. Surgery 2009; 145:527-35
13. 13 Critical questions What is the likelihood that the system chosen will get you to zero retained sponges?
What is the likelihood that the system will introduce new errors that will offset the gains?
What is the impact on workflow?
What usability issues does the system have? Is it intuitive? Does it require specialized training or technique?
What does the system cost?
What is the longevity of the system and investment: what if something better comes along next year?