Table 3.
Reasons for TOBC use and their types
| Reason for TOBC use (n = 88)1 | |
| Balloon-assisted coiling | 73.9% (65/88) |
| Test occlusion | 5.7% (5/88) |
| Safety precaution | 9.1% (8/88) |
| Other | 11.4% (10/88) |
| Vasospasm | 60.0% (6/10) |
| Angioplasty | 10.0% (1/10) |
| Balloon test occlusion of left cervical ICA | 10.0% (1/10) |
| Flow diverter (pipeline)-assisted coiling | 10.0% (1/10) |
| Postdilatation of a flow diverter | 10.0% (1/10) |
| Balloon type/size used | |
| Compliant/3.0 × 10.0 mm | 6.0% (5/83) |
| Compliant/4.0 × 10.0 mm | 31.3% (26/83) |
| Compliant/4.0 × 15.0 mm | 7.2% (6/83) |
| Compliant/4.0 × 20.0 mm | 1.2% (1/83) |
| Compliant/5.0 × 15.0 mm | 2.4% (2/83) |
| Compliant/5.0 × 20.0 mm | 4.8% (4/83) |
| Super Compliant/3.0 × 5.0 mm | 14.5% (12/83) |
| Super Compliant/4.0 × 10.0 mm | 10.8% (9/83) |
| Super Compliant/4.0 × 7.0 mm | 16.9% (14/83) |
| Super Compliant/7.0 × 7.0 mm | 4.8% (4/83) |
Total number of subjects treated: n = 81; total number of TOBCs used: n = 83; total number of TOBC applications/treatments: n = 86. In 3 subjects, 1 TOBC was used to administer treatment at each of 2 treatment locations, and in 1 subject 2 TOBCs were used to administer treatment at 2 different treatment locations (with 1 TOBC being used per location). In 1 subject, 2 TOBCs were used to administer treatment at a single treatment location, as one TOBC malfunctioned and a second (replacement) TOBC had to be used to complete the procedure. TOBC, TransForm™ Occlusion Balloon Catheter; ICA, internal carotid artery.
For one subject, there were 2 reasons for the treatment provided (balloon-assisted coiling and as a safety precaution); likewise, for another subject there were 2 reasons for the treatment provided (balloon-assisted coiling and test occlusion).