Veterinary surgery : VS · 2023
Influence of conventional versus unidirectional barbed suture on leakage pressures in canine vesicourethral anastomosis: An ex-vivo study.
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Monnet Eric, Hafez Ahmed
Аннотация
OBJECTIVE: To compare leakage pressures of vesicourethral anastomosis (VUA) performed with conventional and unidirectional barbed sutures in canine cadaveric tissue.
STUDY DESIGN: Experimental, ex-vivo, randomized study.
ANIMALS: A total of 24 male canine bladders with the urethra.
METHODS: Specimens after prostatectomy were randomly divided into a unidirectional barbed suture (UBS) or a conventional suture (C) group. For the UBS group, the VUA was performed with 4-0 unidirectional barbed sutures. For the C group, the VUA was performed with 4-0 monofilament absorbable suture. The VUA was completed with two simple continuous sutures. Surgical time, leakage pressure, site of leakage, and the number of suture bites were recorded.
RESULTS: The median suturing time was 12.70 minutes (range: 7.50-16.10 min) for the UBS group and 17.30 minutes (range: 14.00-21.30 min) for the C group (p < .0002). The median leakage pressure was 8.60 mmHg (range: 5.00-17.20 mmHg) for the UBS group and 11.70 mmHg (range: 6.00-18.50 mmHg) for the C group (p = .236). The median number of suture bites was 14 (range:11-27) for the UBS group and 19 (range:17-28) for the C group (p = .012).
CONCLUSION: Unidirectional barbed suture does not statistically affect the acute leakage pressure of VUA in normal cadaveric specimen. It resulted in a shorter surgical time and fewer suture bite placements.
CLINICAL SIGNIFICANCE: A urinary catheter will still be required when a unidirectional barbed suture is used to complete a VUA in dogs to prevent extravasation of urine in the postoperative period.
STUDY DESIGN: Experimental, ex-vivo, randomized study.
ANIMALS: A total of 24 male canine bladders with the urethra.
METHODS: Specimens after prostatectomy were randomly divided into a unidirectional barbed suture (UBS) or a conventional suture (C) group. For the UBS group, the VUA was performed with 4-0 unidirectional barbed sutures. For the C group, the VUA was performed with 4-0 monofilament absorbable suture. The VUA was completed with two simple continuous sutures. Surgical time, leakage pressure, site of leakage, and the number of suture bites were recorded.
RESULTS: The median suturing time was 12.70 minutes (range: 7.50-16.10 min) for the UBS group and 17.30 minutes (range: 14.00-21.30 min) for the C group (p < .0002). The median leakage pressure was 8.60 mmHg (range: 5.00-17.20 mmHg) for the UBS group and 11.70 mmHg (range: 6.00-18.50 mmHg) for the C group (p = .236). The median number of suture bites was 14 (range:11-27) for the UBS group and 19 (range:17-28) for the C group (p = .012).
CONCLUSION: Unidirectional barbed suture does not statistically affect the acute leakage pressure of VUA in normal cadaveric specimen. It resulted in a shorter surgical time and fewer suture bite placements.
CLINICAL SIGNIFICANCE: A urinary catheter will still be required when a unidirectional barbed suture is used to complete a VUA in dogs to prevent extravasation of urine in the postoperative period.