A Retrospective Study on the Factors of Drug-coated Balloon Restenosis

This study is a retrospective analysis that retrospectively reviewed over approximately 5000 patients with de novo-large-vessel disease who underwent paclitaxel drug-coated balloon angioplasty. The study endpoints include cardiovascular adverse events at 1 year (cardiovascular death, cardiovascular events) and coronary angiographic outcomes (primarily late lumen loss, restenosis rate). It primarily focuses on differences in baseline characteristics, lesion features, intracavitary imaging characteristics(Including OCT, IVUS), hemodynamic parameter，and procedural approaches among patients. Over 5000 patients are expected to be enrolled.

Inclusion criteria

• Age:

18 years and older.

• Diagnosis:

Diagnosed with coronary artery disease with native large vessel lesions confirmed by coronary angiography.

• Treatment Plan:

Scheduled to receive paclitaxel drug-coated balloon angioplasty.

• Informed Consent:

Patients have been fully informed about the nature and purpose of the study, and have voluntarily agreed to participate, with signed informed consent.

• Physiological Status:

Cardiac function classified as NYHA I-III.

Exclusion criteria

• Allergy History:

Known allergies to paclitaxel or any materials used in angioplasty (e.g., contrast agents).

• Severe Complications:

Uncontrolled hypertension (systolic blood pressure >180 mmHg or diastolic blood pressure >110 mmHg).

• Other Medical Conditions:

Active bleeding or clotting disorders.

• Other serious diseases with a life expectancy of less than 1 year (e.g., advanced cancer).
• Pregnancy or Nursing: Women who are currently pregnant or breastfeeding.
• Participation in Other Studies: Currently participating in other clinical trials that might affect the results of this study.
• Psychological or Behavioral Factors: History of psychiatric or behavioral disorders that could interfere with adherence to study protocols, or communication barriers that prevent understanding of study requirements.