PMID- 33468422 OWN - NLM STAT- MEDLINE DCOM- 20220325 LR - 20220325 IS - 1878-0938 (Electronic) IS - 1878-0938 (Linking) VI - 34 DP - 2022 Jan TI - Saline as an Alternative to Radio-Contrast for Optical Coherence Tomography-Guided Percutaneous Coronary Intervention: A Prospective Comparison. PG - 86-91 LID - S1553-8389(21)00013-0 [pii] LID - 10.1016/j.carrev.2021.01.010 [doi] AB - OBJECTIVES: To do a quantitative comparison of saline and contrast Frequency domain optical coherence tomography (FD-OCT) during percutaneous coronary intervention (PCI) optimisation. METHODS: 13 pairs of OCT runs were analysed, wherein each pair consisted of a contrast run and a heparinized saline run taken in the same coronary artery at the same position. Quantitative analysis was done comparing minimal lumen area (MLA), proximal reference diameter (PRD), distal reference diameter (DRD) and percentage area stenosis (AS) at the same anatomical location. Lesion morphologies, rendered stent view and 3D reconstruction were compared for image clarity. RESULT: The saline OCT runs resulted in comparable MLA (3.88 +/- 2.59 mm(2) with saline run vs 3.88 +/- 2.71 mm(2) with contrast run; p = 0.650), PRD (3.66 +/- 0.52 mm with saline vs 3.65 +/- 0.52 mm with contrast; p = 0.463), DRD (2.97 +/- 0.22 mm with saline vs 2.99 +/- 0.88 mm with contrast; p = 0.433), and AS (59.60 +/- 18.62% with saline vs 59.18 +/- 19.11% with contrast; p = 0.753) with respect to the contrast runs. The Bland Altman plots of the measured parameters indicate good agreement between saline and contrast OCT. Linear regression analysis indicated the absence of proportional bias All lesion morphologies (calcified, fibrotic, thin cap fibroatheroma, macrophages, cholesterol crystals and edge dissection), 3D reconstruction and rendered stent view were clearly demonstrable in the saline OCT runs. CONCLUSIONS: Using heparinized saline as flushing media in coronary FD-OCT may result in vessel dimensions that are comparable with contrast. Heparinized saline may be used as a contrast saving alternative for FD-OCT during PCI optimization. CI - Copyright (c) 2021 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Gupta, Ankush AU - Gupta A AD - Professor of Medicine & Interventional Cardiologist, Head of Department (Cardiology), Military Hospital Jaipur, Rajasthan 302016, India. Electronic address: drankushgupta@gmail.com. FAU - Chhikara, Sanya AU - Chhikara S AD - VMMC & Safdarjung Hospital, New Delhi 110029, India. FAU - Vijayvergiya, Rajesh AU - Vijayvergiya R AD - Department of Cardiology, Advanced Cardiac Centre, PGIMER, Chandigarh 160012, India. FAU - Seth, Ashok AU - Seth A AD - Fortis Escorts Heart Institute, New Delhi 110025, India. Electronic address: ashok.seth@fortishealthcare.com. FAU - Mahesh, Nalin K AU - Mahesh NK AD - Department of Cardiology, INHS Asvini, Mumbai, Maharashtra 400005, India. FAU - Akasaka, Takashi AU - Akasaka T AD - Department of Cardiovascular Medicine, Wakayama Medical University, Kimiidera 811-1, Wakayama 641-8509, Japan. Electronic address: akasat@wakayama-med.ac.jp. FAU - Singh, Navreet AU - Singh N AD - Department of Cardiology, The Air Force Central Medical Establishment, New Delhi 110010, India. LA - eng PT - Journal Article DEP - 20210114 PL - United States TA - Cardiovasc Revasc Med JT - Cardiovascular revascularization medicine : including molecular interventions JID - 101238551 SB - IM MH - Constriction, Pathologic MH - Coronary Angiography MH - *Coronary Artery Disease/diagnostic imaging/pathology/therapy MH - Coronary Vessels/diagnostic imaging/pathology MH - Humans MH - *Percutaneous Coronary Intervention/adverse effects MH - Predictive Value of Tests MH - Prospective Studies MH - Tomography, Optical Coherence MH - Treatment Outcome OTO - NOTNLM OT - Contrast OT - Heparinized saline OT - Intracoronary imaging OT - OCT OT - Optical coherence tomography OT - Percutaneous coronary intervention COIS- Declaration of competing interest None. EDAT- 2021/01/21 06:00 MHDA- 2022/03/26 06:00 CRDT- 2021/01/20 05:42 PHST- 2020/09/26 00:00 [received] PHST- 2021/01/09 00:00 [revised] PHST- 2021/01/11 00:00 [accepted] PHST- 2021/01/21 06:00 [pubmed] PHST- 2022/03/26 06:00 [medline] PHST- 2021/01/20 05:42 [entrez] AID - S1553-8389(21)00013-0 [pii] AID - 10.1016/j.carrev.2021.01.010 [doi] PST - ppublish SO - Cardiovasc Revasc Med. 2022 Jan;34:86-91. doi: 10.1016/j.carrev.2021.01.010. Epub 2021 Jan 14.