Long-Term Outcomes in Patients With Three-Vessel Disease

The First Affiliated Hospital of Dalian Medical University

Status: Completed

Conditions: Three Vessel Coronary Disease

Treatments: Procedure: PCI or CABG

Study type: Observational

Funder types: Other

Identifiers

NCT05007054

YJ-KY-FB-2021-10

Details and patient eligibility

About

The long-term outcome of coronary artery bypass grafting (CABG), percutaneous coronary intervention (PCI), and medical therapy (MT) alone for triple-vessel disease (TVD) patients is controversial. The aim of this study is to evaluate the long-term outcome of TVD patients among these three treatment strategies, to find out the most appropriate treatment methods for these patients.

Full description

The present study was a retrospective observational study. Patients who underwent diagnostic coronary angiography from January 2013 to December 2018 were eligible for this study if they had three-vessel disease, which was defined as more than 50% stenosis in three major epicardial coronary arteries, left anterior descending, left circumflex, and right coronary artery. There were no pre-specified exclusion criteria. The choice of PCI, CABG, or MT was mainly followed the guidelines and based on clinical and angiographic features, physical condition (comorbidities, malignant tumor, frailty, etc.), complexity, and was discussed by physicians and surgeons, combined with the choice of patients. The PCI strategy and stent type were left to the physician's discretion.

The primary endpoint were major adverse cardiac and cerebrovascular events (MACCE), which were a composite of all-cause death, myocardial infarction (MI), repeat revascularization, or stroke. Clinical information of in-hospital outcome was obtained by reviewing medical records. Follow-up was completed by survey via telephone, letter, or hospital visit. All patients had at least one follow-up visit.

Enrollment: 4,300 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients were diagnosed as having three-vessel disease (defined as angiographic stenosis of ≥ 50% in all three main epicardial coronary arteries, with or without left main artery involvement) and age >18 years.

Exclusion criteria

• None

Trial design

4,300 participants in 3 patient groups

Percutaneous coronary intervention

Description:

The PCI performed following current standard guidelines. All patients were pre-treated with aspirin and clopidogrel before catheterization. Thereafter, heparin (70-100 IU/kg) was administered before PCI, however, the use of glycoprotein IIb/IIIa inhibitors was at the physician's discretion. Dual-antiplatelet medication was administered to the patients after PCI for at least 12 months.

Treatment:

Procedure: PCI or CABG

Coronary artery bypass grafting

Description:

The left internal mammary artery was routinely used to graft to the left anterior descending artery and completed by venous grafts to other coronary branches with standard bypass techniques. Te procedure was performed by surgeons experienced in onpump or of-pump surgery at the operator's discretion.

Treatment:

Procedure: PCI or CABG

Medical therapy

Description:

Patients with neither PCI nor CABG treatment were allocated to the MT alone group. For medical therapy, antiplatelet medication, statins, renin-angiotensin system blockade, β-blockers, and nitrate were used.