Impact of Coronary Plaque Morphology Assessed by Optical Coherence Tomography on Cardiac Troponin Elevation in Patients With Elective Stent Implantation
Key result
The presence of OCT-defined thin-cap fibroatheroma strongly predicted post-PCI myocardial infarction (OR 10.47; 95% CI 3.74-29.28; P<0.001) in patients undergoing elective stent implantation.
Why the study?
Does pre-PCI plaque morphology assessed by OCT predict post-PCI myocardial infarction in patients undergoing elective stent implantation?
Population
131 patients with normal pre-PCI cardiac troponin I levels undergoing nonemergency stent implantation
Comparison
Pre-PCI plaque morphology assessment using… vs Absence of high-risk plaque morphology features
Design
Cohort
Follow-up
median 12 months
Authors
Discussion
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Member takes
Implication
May flag high-risk lesions for adjunctive strategies in elective PCI; leaves open prospective validation of OCT-guided therapy.
Study Design
Type
Cohort (n=131)
Structured PICO
Does pre-PCI plaque morphology assessed by OCT predict post-PCI myocardial infarction in patients undergoing elective stent implantation?
P
Population
131 patients with normal pre-PCI cardiac troponin I levels undergoing nonemergency stent implantation, followed for a median of 12 months.
E
Exposure
Pre-PCI plaque morphology assessment using optical coherence tomography (OCT), specifically identifying thin-cap fibroatheroma and type B2/C lesions
C
Comparator
Absence of high-risk plaque morphology features (thin-cap fibroatheroma, type B2/C lesions)
O
Outcome
Post-PCI cardiac troponin I elevation >3 × upper reference limit (defined as post-PCI myocardial infarction)surrogate
Main Result
Odds Ratio: 10.47 (95% CI 3.74–29.28)
p-value: p=<0.001
OCT-defined thin-cap fibroatheroma and type B2/C lesions strongly predict post-PCI myocardial infarction in patients undergoing elective stenting, identifying a high-risk subgroup that may benefit from adjunctive therapy.
Cite This Study
Lee et al. (2011) conducted a cohort in Elective stent implantation (n=131). Thin-cap fibroatheroma and type B2/C lesions vs. Absence of these lesion characteristics was evaluated on Post-PCI myocardial infarction (cardiac troponin I >3 × upper reference limit) (OR 10.47, 95% CI 3.74 to 29.28, p=<0.001). The presence of OCT-defined thin-cap fibroatheroma strongly predicted post-PCI myocardial infarction (OR 10.47; 95% CI 3.74-29.28; P<0.001) in patients undergoing elective stent implantation.