Defining Staged Procedures for Percutaneous Coronary Intervention Trials

Abstract

Patients in coronary intervention trials may require more than 1 procedure to complete the intended revascularization strategy. However, these staged interventions are not consistently defined. Standardized definitions are needed to allow meaningful comparisons of this outcome among trials. This document provides guidance on relevant parameters involving staged procedures, including minimum data collection and consistent classification of coronary procedures initially identified as staged; the aim is to achieve consistency among clinical trialists, sponsors, health authorities, and regulators. Definitions were developed jointly among representatives of academic institutions and clinical research organizations based on clinical trial experience and published literature. Reasons for staged procedures were identified and include baseline kidney function, contrast load and radiation exposure, lesion complexity, and patient or operator fatigue. Moreover, nonclinical reasons include procedure scheduling and reimbursement. Management of staged procedures should be a standalone section in clinical trial protocols and clinical events committee charters. These documents should clearly define a time window for staged procedures that allows latitude for local policies, while respecting accepted clinical guidelines, and consistency with study objectives. Investigators should document in the case report form the intent to stage a procedure, the lesions to be treated, and the reasons for staging, preferably before randomization. Ideally, all reinterventions, or at least all procedures performed after the recommended time window, those in which data suggest an anticipated procedure due to a worsening condition and those where a revascularization is attempted in the target vessel, should be reviewed by an independent clinical events committee.

Impact of residual coronary lesions on outcomes of myocardial infarction patients with multi-vessel disease

“…In the case of staged PCI procedures (defined as a second planned PCI procedure after the initial intervention) [ 23 ], the final planned procedure was used as the entry point for this study. We used the first planned procedure as the reference if there was any event between the procedures.…”

Fractional flow reserve or 3D-quantitative-coronary-angiography based vessel-FFR guided revascularization. Rationale and study design of the prospective randomized fast III trial

“…If the treatment of multi-vessel disease requires a staged procedure, planned staged procedures are recommended to be completed within forty-five (45) days. 21 Antithrombotic therapy and concomitant cardiac medication are administered according to the current routine practice guidelines. 5 vFFR computation vFFR (CAAS Workstation 8.5, Pie Medical Imaging, Maastricht, the Netherlands) is computed using 2 angiographic views, recorded after the administration of intracoronary nitrates, with at least 30 °difference in rotation/angulation to generate the 3D reconstruction of the coronar y arter y ( Figure 2 ).…”

Impact of residual coronary lesions on outcomes of myocardial infarction patients with multi-vessel disease

“…AKI was described as a 25% relative or 0.5mg/dL (44.2μmol/L) absolute increase in presenting serum creatinine after PPCI. (22) In the case of staged PCI procedures (de ned as a second planned PCI procedure after the initial intervention) (23) , the nal planned procedure was used as the entry point for this study. If there was any event between the procedures, we used the rst planned procedure as the reference.…”