Potential utility of new surgical hemostatic film using Hydrofit^®: a preliminary study

We developed a surgical hemostatic film using Hydrofit^® (Hydrofit^® film). This film is prepared by reacting Hydrofit^® with water in advance, and it can be used in the same way as an accessory silicone sheet. In addition, unlike the silicone sheet, there is no need to remove the Hydrofit^® film from the body. In the present study, we describe the hemostatic effect of our new method using Hydrofit^® film. We created a pulsatile flow circuit model using a ventricular assist device and a vascular graft. The circuit was filled with water, and the systolic pressure was adjusted to ≥ 130 mmHg. The artificial blood vessel was punctured by an 18-G needle. Operations to prevent water from leaking were attempted through either a conventional method using a silicone sheet or our new method using Hydrofit^® film. In the 180-s trial, 14 attempts (93.3%) with the Hydrofit^® film were successful. In the silicone sheet group, 13 attempts (86.7%) were successful before the silicone sheet was peeled off, and hemostasis was maintained in 10 (66.5%) cases after the silicone sheet was removed. After short-duration hemostasis for 60 s, good waterproofing was obtained in the Hydrofit^® film group (success in 17 cases [85%]). In contrast, in the silicone sheet group, 10 attempts (50%) were successful before the silicone sheet was peeled off, and hemostasis was maintained in only 7 (35%) cases after the silicone sheet was removed. Hydrofit^® film showed good hemostatic performance in the pulsatile flow circuit model.