OBJECTIVES: Cardiac surgical procedures carry a high risk of perioperative bleeding. Surgical sealants are often used to prevent suture line bleeding. PreveLeak™ is a surgical sealant composed of bovine serum albumin, a polyaldehyde cross-linker, and other components that forms a soft, flexible, water-tight, mechanical seal that is biocompatible and bioresorbable. METHODS: A prospective, multicentre study evaluated PreveLeak use in 44 subjects undergoing 63 cardiac procedures, primarily coronary artery bypass grafting (n = 23/63, 36.5%) and aortic valve replacement (n = 19/63, 30.2%). PreveLeak was applied to 127 suture lines and the time to sealing evaluated upon clamp release. The primary safety endpoint was the incidence of significant bleeding, infections, neurological deficits and immune/inflammatory allergic responses within 6 weeks post-treatment; subjects were followed for 3 months. RESULTS: Immediate sealing was achieved at all sites in 42 of 44 subjects (95.5%) and 125 of 127 treatment sites (98.4%). There were nine primary safety events: eight infections and one transient neurological deficit. Most adverse events were mild (n = 46/71, 64.8%) or moderate (n = 18/71, 25.4%) in severity. One adverse event (transient vasospasm) was considered possibly sealant-related. One death occurred due to a cardiac arrest. CONCLUSIONS: PreveLeak prevented bleeding at 98.4% of treated sites and was well tolerated; adverse events were consistent with those commonly observed in subjects undergoing surgical procedures. These results compared favourably with published studies of other sealants. The observed prevention of bleeding is clinically important in cardiac surgical patients. A randomized, comparative study is justified to further evaluate PreveLeak and confirm the findings from this study.

• Klíčová slova
• Cardiac surgical procedures, Coronary artery bypass grafting, Sealing, Surgical sealant,
• MeSH
• aortální chlopeň chirurgie   MeSH
• biokompatibilní materiály * MeSH
• časové faktory MeSH
• chirurgická náhrada chlopně * škodlivé účinky   mortalita   MeSH
• dospělí MeSH
• infekce chirurgické rány etiologie   MeSH
• koronární bypass * škodlivé účinky   mortalita   MeSH
• koronární vazospasmus etiologie   MeSH
• krvácení při operaci prevence a kontrola   MeSH
• lidé středního věku MeSH
• lidé MeSH
• pooperační krvácení prevence a kontrola   MeSH
• prospektivní studie MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• šicí techniky * škodlivé účinky   mortalita   MeSH
• srdeční zástava etiologie   MeSH
• tkáňová adheziva škodlivé účinky   terapeutické užití   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky MeSH
• multicentrická studie MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Česká republika MeSH
• Německo MeSH
• Názvy látek
• biokompatibilní materiály * MeSH
• tkáňová adheziva MeSH