Sutures, hemoclips, and electrocautery are the primary means of achieving hemostasis during gynecologic surgery. When these are inadequate or infeasible, topical hemostatic agents can be employed. Use of these agents has increased by 10%-21% since 2000, yet studies evaluating their use in gynecologic surgery are limited (J. Surg. Res. 2014;186:458-66).
Oxidized regenerated cellulose
Oxidized regenerated cellulose (Surgicel) is made from dissolved oxidized cellulose woven into a dry gauze sheet (J. Urol. 2006;176:2367-74). It is applied directly to tissue, creating a scaffold for platelet aggregation and decreasing tissue pH, further activating the clotting cascade (Surg. Infect. (Larchmt.) 2003;4:255-62). It is absorbed in 14 days, but can persist for 1 year.
Dr. Weiya Z. Wysham
Oxidized regenerated cellulose (ORC) is easily passed through laparoscopic trocars. One study found ORC efficacious in controlling tubal hemorrhage during laparoscopic sterilization (Int. J. Gynaecol. Obstet. 2003;82:221-2). It has also been shown to have bactericidal activity (Surg. Infect. (Larchmt.) 2003; 4:255-62) and prevent development of peritoneal adhesions (Acta. Chir. Scand. 1978;144:375-8).
Microfibrillar collagen
Microfibrillar collagen (Avitene) is made from bovine collagen in a powder or sponge sheet, and acts as a scaffold for platelet aggregation. It is applied directly to tissue and is absorbed in 3 months. One study found microfibrillar collagen (MC) use during cold knife conization resulted in nonsignificant reduction in operative time and similar hemostatic results compared to Sturmdorf suture (Obstet. Gynecol. 1978;51:118-22). MC also has been used to treat bleeding following uterine perforation and during laparoscopic hysterectomy.
Dr. John T. Soper
Gelatins
Gelatins (Gelfoam, Surgifoam) are made of porcine collagen in a powder or foam (J. Urol. 2006;176:2367-74). It is applied directly to tissue, acting as a sponge to absorb blood. Pressure for several minutes is necessary for optimal hemostasis. Some surgeons moisten gelatins with topical thrombin prior to use, though no trials exist evaluating the efficacy of this maneuver.
Gelatin is absorbed in 4-6 weeks (J. Urol. 2006;176:2367-74) and can be passed through laparoscopic trocars. No studies have evaluated gelatins in gynecologic surgery so its applications are extrapolated from vascular and urologic surgery (J. Urol. 2006;176:2367-74).
Microporous polysaccharide spheres
Microporous polysaccharide spheres (Arista) form a polysaccharide powder made from potato starch. It absorbs water, concentrating platelets and other proteins to accelerate clot formation. It is applied to a dry surgical field and followed with gentle pressure. MPS is absorbed in 48 hours. No studies specifically evaluate the use of MPS in gynecologic surgery.