A Novel Clinical Scoring Model for Interventional Therapy in Chronic Total Occlusion of the Coronary Artery

Table 5

PCI features of the study population.

PCI features	(N = 144)
Forward single-guidewire technology	74 (51.4%)
Forward double-guidewire technology	14 (9.7%)
Technology of forward false cavity returning to the true cavity	6 (4.2%)
Retrograde technology	37 (25.7%)
Septal branch channel	26 (70.3%)
Intervention strategy conversion	48 (33.3%)
Intravascular ultrasound guidance/exploration	36 (25.0%)
IABP during the operation	10 (6.9%)
Pericardiocentesis	3 (2.1%)
Postoperative sudden cardiac death	1 (0.7%)
6F guide tube	55 (38.2%)
7F guide tube	89 (61.8%)
Number of stents implanted during operation	2.96 ± 1.28
Total length of the stent implanted during operation	87.50 ± 39.14
X-ray fluoroscopy time	67.56 ± 17.92
Dosage of the contrast agent	179.50 ± 44.08
CTO-PCI technical success	131 (90.9%)
CTO-PCI procedural success	128 (88.9%)