"Feasibility and Safety of the Calcium Alginate Hydrogel Sealant for the Treatment of Cryptoglandular Fistula-in-ano: Phase I/IIa Clinical Trial"

"1. The external and internal fistulous orifice and fistulous tract were explored without applying any product, including hydrogen peroxide or povidone-iodine.~2. The seton was removed and FT cannulation was performed using a needle for cleaning with a gauze impregnated with saline.~3. Calcium chloride was applied through the EFO until it exits through the IFO, and then the IFO was obturated.~4. Alginate was applied, and the pressure at the IFO was stopped, until the alginate solution partial exits through the IFO.~5. The IFO was closed with a 3/0 braided resorbable suture.~6. The EFO was removed with an electric scalpel and closed with a 3/0 braided resorbable suture."