Comparing Pain Scoring Systems in ICU Patients
Author Information
Author(s): Ahlers Sabine JGM, van Gulik Laura, van der Veen Aletta M, van Dongen Hendricus PA, Bruins Peter, Belitser Svetlana V, de Boer Anthonius, Tibboel Dick, Knibbe Catherijne AJ
Primary Institution: St. Antonius Hospital
Hypothesis
How do different pain scoring systems compare in their reliability and effectiveness for critically ill patients in the ICU?
Conclusion
Different pain scales show high reliability, but observer evaluations often underestimate pain, especially when patients report high pain scores.
Supporting Evidence
- Inter-rater reliability of the NRS and BPS was adequate with kappa values of 0.71 and 0.67, respectively.
- Patients rated their pain higher than nurses did, especially when scores were 4 or higher on the NRS.
- A strong correlation (rs = 0.84) was found between NRS and VAS scores in responsive patients.
- The BPS should be used in conjunction with the NRS for ventilated patients to measure pain levels.
Takeaway
This study looked at how well different ways to measure pain work for patients in the ICU. It found that nurses sometimes think patients are in less pain than they really are.
Methodology
A prospective observational study was conducted with 113 non-paralyzed critically ill patients, using three pain scales (NRS, BPS, VAS) to measure pain.
Potential Biases
There is a risk of underestimating pain levels, particularly for high scores reported by patients.
Limitations
The study only measured pain at rest and without painful stimuli, which may limit the applicability of the results to other situations.
Participant Demographics
Median age of participants was 66 years, with 69% male and a high percentage (73%) of post-cardiothoracic surgery patients.
Statistical Information
P-Value
<0.001
Confidence Interval
0.61–0.81
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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