Prediction of chronic vessel enlargement by a novel intravascular ultrasound finding

Circulation Journal : Official Journal of the Japanese Circulation Society
Yoji NeishiKiyoshi Yoshida

Abstract

Coronary arterial segments distal to the severely stenotic lesion sometimes shrink as a result of decreased coronary flow. Pathological studies have shown that vessel shrinkage is accompanied by folding of the internal elastic membrane (IEM). A peri-medial high-echoic band (PHB) by intravascular ultrasound (IVUS) may represent folding of the IEM and therefore detect chronically shrunken coronary segments that have potential to enlarge subsequently. METHODS AND RESULTS: IVUS imaging of the distal reference segments was performed in 27 patients after stenting. PHB was defined as a high-echoic band observed at the luminal side of the media. Serial (baseline and 9 months) changes in minimal lumen diameter (LD) were compared between those with (PHB group) and without PHB (non-PHB group). During follow-up, LD increased significantly in PHB group (1.2±0.3 vs. 1.7±0.5 mm, P=0.001) but not in the non-PHB group (2.0±0.7 vs. 2.1±0.7 mm, P=NS). Late lumen gain (LLG) was observed in 16 of the 27 (59%) lesions. Lesions with LLG showed a trend toward smaller baseline lumen cross-sectional area and significantly higher prevalence of PHB (88% vs. 18%, P=0.007). By multivariable logistic regression analysis, PHB was the only IVUS predictor of LL...Continue Reading

References

Aug 29, 2003·The American Journal of Cardiology·Hiroyuki OkuraPeter J Fitzgerald
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Dec 21, 2010·American Journal of Physiology. Heart and Circulatory Physiology·Yasumi UchidaNobuyuki Hiruta
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Sep 22, 2012·JACC. Cardiovascular Interventions·Yoshiaki MitsutakeTsutomu Imaizumi
Nov 13, 2012·European Heart Journal Cardiovascular Imaging·Hiroyuki OkuraKiyoshi Yoshida
Nov 15, 2012·Circulation Journal : Official Journal of the Japanese Circulation Society·Naoki NakayamaKazuo Kimura
Feb 23, 2013·Circulation Journal : Official Journal of the Japanese Circulation Society·Hiroyuki OkuraUNKNOWN Taxus Japan Postmarket Surveillance Study Taxus-Pms Investigators
Nov 1, 2013·Circulation Journal : Official Journal of the Japanese Circulation Society·Ryotaro YamadaYasuhiro Honda
Jul 16, 2014·Circulation Journal : Official Journal of the Japanese Circulation Society·Yuhei KobayashiKiyoshi Yoshida
Oct 7, 2014·Circulation Journal : Official Journal of the Japanese Circulation Society·Hiroyuki Okura

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Citations

Feb 23, 2019·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Yoshiyuki OkuyaYoshikazu Hiasa
Jan 13, 2021·Cardiovascular Revascularization Medicine : Including Molecular Interventions·Yoshiyuki OkuyaYoshio Kobayashi
Nov 5, 2020·Cardiovascular Revascularization Medicine : Including Molecular Interventions·Kazuki ShimizuTakahiko Suzuki

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