Duffy et al: Influence of barbed suture oversew of the transverse staple line during functional end-to-end stapled anastomosis in a canine jejunal enterectomy model
Veterinary Surgery 5, 2022

🔍 Key Findings

• Oversewing the transverse staple line using barbed suture showed no difference in initial (ILP) or maximum leakage pressure (MLP) compared to monofilament suture (p = .439 and .644).
• Barbed suture repairs were ~18% faster (25 seconds faster; p < .001) than monofilament suture.
• No difference was found between unidirectional and bidirectional barbed sutures in leakage resistance or repair time (p = .697).
• Mean ILP and MLP were significantly higher in control jejunal segments (6.6x and 5.1x greater respectively; p < .001).
• Leakage consistently occurred at the crotch of the FEESA in all oversew groups (>80%), not the staple line.
• All oversewn techniques leaked at supraphysiologic pressures, indicating clinical safety against in vivo leakage.
• No leakage was observed from barbed suture holes, addressing concerns of tissue trauma due to barb design.
• The study supports barbed suture as a viable alternative to conventional monofilament suture for FEESA oversew in dogs.