PMID- 25115992 OWN - NLM STAT- MEDLINE DCOM- 20151203 LR - 20161125 IS - 1522-726X (Electronic) IS - 1522-1946 (Linking) VI - 85 IP - 4 DP - 2015 Mar TI - Bivalirudin versus unfractionated heparin for residual thrombus burden: a frequency-domain optical coherence tomography study. PG - 575-82 LID - 10.1002/ccd.25631 [doi] AB - OBJECTIVES: This study aimed to compare the effect of bivalirudin and unfractionated heparin (UFH) on residual thrombus burden assessed by frequency-domain optical coherence tomography (FD-OCT), and on angiographic indices of microvascular obstruction (MVO). BACKGROUND: The efficacy of bivalirudin to inhibit thrombus formation inside the stent during percutaneous coronary interventions (PCI) as compared to UFH is unknown. METHODS: Sixty patients with coronary artery disease who underwent post-PCI FD-OCT were studied, including 20 patients treated with bivalirudin and 40 control patients treated with UFH, matched by clinical presentation, stent characteristics, and periprocedural medications. In-stent thrombus volume, thrombus score (number of quadrants with thrombus), and thrombus type (white/red) were assessed by FD-OCT. Thrombolysis in myocardial infarction (TIMI) flow grade, corrected TIMI frame count (cTFC), and Quantitative Blush Evaluator (QuBE) score were recorded. RESULTS: Patients treated with bivalirudin showed similar thrombus volume (0.14 mm(3) [0.00-0.88] vs. 0.13 mm(3) [0.00-0.63], P = 0.962), thrombus score (10 [0-25] vs. 8 [0-21], P = 0.849) and thrombus length (1.70 mm [0.00-4.10] vs. 1.40 mm [0.00-4.05], P = 0.968], as compared with patients treated with UFH. Patients in the bivalirudin group showed lower proportion of white thrombus (55.5% vs. 78.6%, P = 0.016). There was no significant difference in TIMI flow grade, cTFC, and QuBE score between the two groups. CONCLUSIONS: The present study showed similar residual thrombus burden and angiographic indices of MVO immediately after PCI between patients treated with bivalirudin and those treated with UFH. CI - (c) 2014 Wiley Periodicals, Inc. FAU - Vergallo, Rocco AU - Vergallo R AD - Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts. FAU - Joye, Russell AU - Joye R FAU - Barlis, Peter AU - Barlis P FAU - Jia, Haibo AU - Jia H FAU - Tian, Jinwei AU - Tian J FAU - Soeda, Tsunenari AU - Soeda T FAU - Minami, Yoshiyasu AU - Minami Y FAU - Hu, Sining AU - Hu S FAU - Dauerman, Harold L AU - Dauerman HL FAU - Toma, Catalin AU - Toma C FAU - Chan, James AU - Chan J FAU - Lee, Hang AU - Lee H FAU - Biasucci, Luigi Marzio AU - Biasucci LM FAU - Crea, Filippo AU - Crea F FAU - Jang, Ik-Kyung AU - Jang IK LA - eng SI - ClinicalTrials.gov/NCT01110538 PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20140822 PL - United States TA - Catheter Cardiovasc Interv JT - Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions JID - 100884139 RN - 0 (Fibrinolytic Agents) RN - 0 (Hirudins) RN - 0 (Peptide Fragments) RN - 0 (Recombinant Proteins) RN - 9005-49-6 (Heparin) RN - TN9BEX005G (bivalirudin) SB - IM CIN - Catheter Cardiovasc Interv. 2015 Mar;85(4):583-4. PMID: 25702908 MH - Aged MH - Controlled Clinical Trials as Topic MH - Coronary Angiography MH - Coronary Artery Disease/diagnosis/physiopathology/*therapy MH - Coronary Circulation MH - Coronary Thrombosis/diagnosis/physiopathology/*therapy MH - Coronary Vessels/diagnostic imaging/*pathology/physiopathology MH - Female MH - Fibrinolytic Agents/*therapeutic use MH - Heparin/*therapeutic use MH - Hirudins MH - Humans MH - Male MH - Microcirculation MH - Middle Aged MH - Peptide Fragments/*therapeutic use MH - *Percutaneous Coronary Intervention MH - Predictive Value of Tests MH - Recombinant Proteins/therapeutic use MH - Registries MH - Retrospective Studies MH - Time Factors MH - *Tomography, Optical Coherence MH - Treatment Outcome OTO - NOTNLM OT - bivalirudin OT - optical coherence tomography OT - thrombus OT - unfractionated heparin EDAT- 2014/08/15 06:00 MHDA- 2015/12/15 06:00 CRDT- 2014/08/14 06:00 PHST- 2014/06/20 00:00 [received] PHST- 2014/07/23 00:00 [revised] PHST- 2014/08/11 00:00 [accepted] PHST- 2014/08/14 06:00 [entrez] PHST- 2014/08/15 06:00 [pubmed] PHST- 2015/12/15 06:00 [medline] AID - 10.1002/ccd.25631 [doi] PST - ppublish SO - Catheter Cardiovasc Interv. 2015 Mar;85(4):575-82. doi: 10.1002/ccd.25631. Epub 2014 Aug 22.