Patients with Chronic kidney disease are most vulnerable to contrast induced nephropathy after Percutaneous coronary intervention, intravascular ultrasound guidance can be used to safely guide the procedure to reduce the contrast usage, this randomized trial is design to test the hypothesis that IVUS based ultra-low contrast PCI is feasible and can reduce the contrast induced nephropathy.
Prospective, open-label, randomized(1:1), multi-center trial of 320 patients allocated to one of the treatment arms(IVUS-guided ultra-low contrast PCI or angiography-guided PCI). The study population will be composed of patients with renal dysfunction referring for PCI on one to more coronary artery. target lesion must be assessable with IVUS. eGFR will be re-evaluated 48 hours after the procedure. and at 1 month, 3 month, 6 month, 12 month. as well as follow-up for other clinical outcomes unless contra-indicated all patients will receive intravenous hydration 12 hours before and after the procedure. saline infusion at a dose of 1ml/kg/hour. if with reduced ejection fraction or overt heart failure reduce the saline infusion to 0.5ml/kg/hour. the use of sodium bicarbonate and diuretic will be left at the discretion of the operator All procedure will be performed using non-ionic, low osmolar or iso-osmolar, iodine-based contrast media the study groups will be compared according to the intention-to-treat principle. Categorial variables will be compared by Fisher's exact test and continuous variables by students T test. Time-dependent events will be estimated by the Kaplan-Meier method and compared by hazards cox model or log-rank test.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
320
IVUS based ultralow contrast PCI
Jilin university
Changchun, Jilin, China
Zhongshan Hospital
Shanghai, Shanghai Municipality, China
Contrast-induced acute kidney injury
Evaluate whether IVUS-guided PCI reduces CI-AKI. CI-AKI defined as an increase in serum creatine\>=0.5mg /dl from the baseline, within 72 hours after the index procedure(or at discharge) comparison to stand-alone angiography-guided PCI. CI-AKI will be defined as an increase in serum creatinine ≥ 0.3 mg/dl (26.52umol)from the baseline value
Time frame: within 72 hours after the index procedure (or at discharge).
Major adverse cardiac events and components
cardiovascular death, myocardial infarction and target vessel Revascularization
Time frame: 1 year
stent thrombosis
stents thrombosis will be defines as the occurrence of definite or probably stent thrombosis according to the ARC criteria
Time frame: 1 year
serious acute kidney dysfunction
\>=2mg /dl increase of serum creatine or need for dialysis
Time frame: 1 year
procedure time
procedure time from gain access to finish the procedure
Time frame: 1 day
radiation exposure
total radiation exposure dose
Time frame: 1 day
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.