Predictors for In-Stent Restenosis
2011

Inflammation and In-Stent Restenosis: The Role of Serum Markers and Stent Characteristics in Carotid Artery Stenting

Sample size: 210 publication Evidence: moderate

Author Information

Author(s): Wasser Katrin, Schnaudigel Sonja, Wohlfahrt Janin, Psychogios Marios-Nikos, Knauth Michael, Gröschel Klaus

Primary Institution: University of Göttingen, Göttingen, Germany

Hypothesis

The study investigates the influence of inflammatory serum markers and procedure-related factors on in-stent restenosis (ISR) after carotid artery stenting.

Conclusion

In-stent restenosis is associated with periinterventional inflammation markers and influenced by stent characteristics such as length and width.

Supporting Evidence

  • 5.7% of patients experienced in-stent restenosis after a median follow-up of 33.4 months.
  • Leukocyte count after the procedure was significantly associated with the development of ISR.
  • Stent length and width were also significant predictors of ISR.

Takeaway

Doctors looked at how inflammation and stent design affect blockages in arteries after a procedure. They found that certain blood markers and the size of the stent can help predict these blockages.

Methodology

The study analyzed 210 carotid artery stenting procedures in 194 patients, examining serum markers and stent characteristics in relation to ISR.

Potential Biases

Potential ascertainment bias due to the retrospective nature of the analysis.

Limitations

The study was retrospective, which may introduce bias, and the techniques for carotid artery stenting have improved over time.

Participant Demographics

Mean age of 67.9 years, 71.9% male, 71.0% symptomatic carotid stenosis.

Statistical Information

P-Value

0.022

Confidence Interval

1.02–1.69

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022683

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