Low Clinical Utility for Angiotensin-Converting Enzyme Levels in Sarcoidosis
Author Information
Author(s): Druyan Amit, Noam Shuv, Lidar Merav
Primary Institution: Sheba Medical Center
Hypothesis
What is the significance of elevated ACE levels in the diagnosis and follow-up of sarcoidosis patients?
Conclusion
ACE levels are a non-specific serological marker with low specificity and sensitivity for sarcoidosis and a poor positive predictive value.
Supporting Evidence
- ACE levels had a positive predictive value of 12.76% and a negative predictive value of 94.6% for the diagnosis of sarcoidosis.
- Elevated ACE levels correlated poorly with disease activity in the cohort.
- Patients with elevated ACE levels were more likely to achieve drug-free remission.
Takeaway
Doctors often check ACE levels to see if someone has sarcoidosis, but this study shows that it doesn't really help much.
Methodology
A single-center retrospective cohort study using electronic patient records to analyze ACE levels in sarcoidosis patients.
Potential Biases
Potential bias due to the retrospective design and unknown reasons for ACE testing referrals.
Limitations
The study's retrospective nature limited control over all influencing factors, and asymptomatic manifestations were not thoroughly evaluated.
Participant Demographics
Patients with sarcoidosis had a mean age of 57.01 years, with 45.37% being male.
Statistical Information
P-Value
p<0.0001
Confidence Interval
IQR 25.75–67.5
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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