Effect of preintervention plaque burden on subsequent intimal hyperplasia in stented coronary artery lesions

Am J Cardiol. 2000 Dec 15;86(12):1318-21. doi: 10.1016/s0002-9149(00)01234-0.

Abstract

We sought to determine if axial and circumferential distribution of plaque before stenting determines the axial and circumferential distribution of subsequent intimal hyperplasia (IH). We studied 22 patients with a single Palmaz-Schatz stent implanted in a native coronary artery, who underwent intravascular ultrasound (IVUS) imaging before intervention, after stenting, and at 6-month follow-up. For each lesion, 7 locations were analyzed: proximal and distal reference, proximal and distal edge of the stent, proximal and distal location within the body of the stent, and the articulation. Pre- and postintervention and follow-up image slices were precisely aligned and analyzed for pre- and postintervention plaque area and follow-up IH area and thickness. The location of maximal IH area was at or adjacent to the location of maximal preintervention plaque in 17 of 22 of the patients (77%). Similiarly, the circumferential distribution of IH at follow-up paralleled the eccentricity pattern of the native plaque burden in 69% (24 of 35 slices). Using multivariant analysis, the strongest predictor of IH was preintervention plaque area (p = 0.001). IH accumulates axially and circumferentially preferentially at the site of maximal preintervention plaque.

MeSH terms

  • Angioplasty, Balloon, Coronary / instrumentation
  • Coronary Artery Disease / diagnostic imaging
  • Coronary Artery Disease / pathology*
  • Coronary Artery Disease / therapy
  • Coronary Vessels / diagnostic imaging
  • Coronary Vessels / pathology*
  • Female
  • Follow-Up Studies
  • Humans
  • Hyperplasia
  • Linear Models
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Stents*
  • Tunica Intima / diagnostic imaging
  • Tunica Intima / pathology*
  • Ultrasonography, Interventional