Predictive value of pressure ulcer risk for obstructive coronary artery disease.
Yao Wang, Ran Chen, Jie Ding and 3 others
PMID 33675186WHAT IT FOUND
Patients with higher pressure ulcer risk were more likely to have left main or three-vessel coronary disease.
The Braden score is a nursing assessment, not a coronary artery disease diagnostic test.
Key findings
01Patients with left main or three-vessel coronary disease had lower Braden pressure ulcer risk scores and a higher proportion of high pressure ulcer risk than patients with less severe coronary disease.
02After adjustment for age, BMI, diabetes and chronic kidney disease, the Braden score remained associated with left main or three-vessel disease.
03For left main or three-vessel disease, the area under the curve for the Braden score was 0.645; at a cut-off of 15.5, sensitivity was 78.7% and specificity was 42.4%.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The study was cross-sectional, so it cannot show whether pressure ulcer risk and severe coronary disease influence each other. Only 193 of 697 angiography patients were included, because many did not receive pressure ulcer risk assessment or were excluded for perioperative reasons. The study included only patients already considered at risk for pressure ulcers, so the finding may not apply to all patients undergoing coronary angiography. The Braden score had only modest discrimination, with an area under the curve of 0.645. The design was retrospective, and consent was waived.
Declared interests
None declared.
The easy way to misread this
Do not read a high pressure ulcer risk score as evidence that pressure ulcers cause coronary disease or as a standalone test for coronary artery disease. The study was cross-sectional, selected only patients already assessed for pressure ulcer risk, and the Braden score had only modest discrimination.