Development and Validation of a Novel Scoring System for Predicting Technical Success of Chronic Total Occlusion Percutaneous Coronary Interventions

Abstract

The PROGRESS CTO score is a novel useful tool for estimating technical success in CTO PCI performed using the hybrid approach.

Intravascular ultrasound in percutanous coronary intervention for chronic total occlusions: predictors of use, indications and in-hospital outcome

“…The absence of a well-defined (ambigous) stump is a major limitation for CTO recanalization [16,17]. The major indication of IVUS in our study was antegrade proximal cap puncture.…”

Use of Intravascular Imaging During Chronic Total Occlusion Percutaneous Coronary Intervention: Insights From a Contemporary Multicenter Registry

“…Data collection was performed both prospectively and retrospectively and was recorded in a dedicated online database (PROGRESS CTO: Prospective Global Registry for the Study of Chronic Total Occlusion Intervention, Clinicaltrials.gov Identifier: NCT02061436). [14][15][16][17][18][19][20][21][22][23][24] The study was approved by the institutional review board of each site and a waiver of informed consent was obtained.…”

Chronic Total Occlusion Percutaneous Coronary Intervention: Evidence and Controversies

“…Several scoring systems have been developed to determine the likelihood of CTO PCI technical success and the potential difficulty of the procedure (measured as time required to cross the occlusion), such as the CL Clinical and lesion‐related) score,34 Ellis score,35 Japan‐chronic total occlusion score (J‐CTO),36 Ostial, Rentrop grade, Age score (ORA),37 PROGRESS‐CTO score,38 and RECHARGE score39 (Table 3). These scores combine various clinical and angiographic characteristics and can provide a quantitative assessment of the likelihood of success and the difficulty of the case, as long as they are applied in similar settings as the ones that they were developed on.…”