Mechanism and Predictor of Side Branch Jailing (PRESSURE)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00553670
Recruitment Status : Completed
First Posted : November 5, 2007
Last Update Posted : March 30, 2011
Information provided by:
Seoul National University Hospital

November 1, 2007
November 5, 2007
March 30, 2011
November 2007
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Complete list of historical versions of study NCT00553670 on Archive Site
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Mechanism and Predictor of Side Branch Jailing
Predictor and Mechanism of a Side Branch Jail After Main Branch Stent Implantation in Bifurcation Lesions
Coronary artery bifurcation lesion is still one of the most challenging lesion subsets in the field of non-surgical treatment for a stenotic coronary artery. When one stent is placed in the main brach, it increases the side branch's stenosis degree. However, its mechanism and incidence are not known. This study will be performed to search for the mechanism and incidence of that phenomenon.
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Observational Model: Case-Only
Time Perspective: Prospective
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Non-Probability Sample
Patients with bifurcating coronary artery lesion in left anterior descending coronary artery
  • Bifurcating Coronary Artery Lesions
  • Main Branch Stent Implantation
  • Side Branch Jailing
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Patients with elective coronary intervention for LAD-diagonal bifurcation lesion with provisional side branch intervention strategy with successful intravascular ultrasound and fractional flow reserve measurement
Koo BK, Waseda K, Kang HJ, Kim HS, Nam CW, Hur SH, Kim JS, Choi D, Jang Y, Hahn JY, Gwon HC, Yoon MH, Tahk SJ, Chung WY, Cho YS, Choi DJ, Hasegawa T, Kataoka T, Oh SJ, Honda Y, Fitzgerald PJ, Fearon WF. Anatomic and functional evaluation of bifurcation lesions undergoing percutaneous coronary intervention. Circ Cardiovasc Interv. 2010 Apr;3(2):113-9. doi: 10.1161/CIRCINTERVENTIONS.109.887406.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Same as current
May 2009
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Inclusion Criteria:

  1. Elective coronary intervention (including stabilized ACS patients)
  2. Bifurcation lesion with TIMI 3 flow
  3. Side branch diameter > 2mm, side branch lesion length < 10mm by visual estimation

Exclusion Criteria:

  1. Left main coronary disease
  2. AMI, or Old MI at LAD territory
  3. LVEF < 40%, or other significant valvular or myocardial disease
  4. Significant side branch distal lesion
  5. Angiographically visible thrombus
  6. Heavily calcified lesion
  7. Side branch predilatation before main branch stent implantation
Sexes Eligible for Study: All
18 Years to 80 Years   (Adult, Older Adult)
Contact information is only displayed when the study is recruiting subjects
Korea, Republic of
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Seoul National University Hospital
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Study Director: Bon-Kwon Koo, PhD Seoul National University Hospital
Seoul National University Hospital
March 2011