Temporary Vascular Occlusion by Rapid Reverse Phase Polymer: A Preliminary In Vitro Study of Retrograde Injection
Table 1
Experimental parameters.
Relating to all injection methods (retrograde and cannulation with LeGoo cannula and with intravenous cannula)
Water pressure: 30 or 91 mmHg
External heating of tube with water at temperature between 35.4°C and 44°C: yes or no
Warming LG shortly in water bath of 21°C before injection: yes or no
Estimated median LG injection time: 0.32 s or 0.64
Volume of LG injected: 0.15, 0.20, 0.30, 0.40, or 0.50 mL
Volume of syringe for LG injection: 0.5, 1, or 2.5 mL
Relating to the retrograde method
Balloon content and temperature: air, 21°C; water, 4°C; water, 21°C
Time from beginning of LG injection till removal of balloon: short, 3.0–5.6 s or long, 5.8–10 s
Relating to the cannulation method
Retraction of cannula during LG injection: yes or no
*LG was injected while counting to 1 or to 2. In separate experiments, time elapsed was measured while injecting water and counting to 1 or to 2 at the same pace as during LG injection. Time elapsed while counting to 1 was 0.32 s (0.28–0.67 s) and time elapsed while counting to 2 was 0.64 s (0.33–0.77 s).
