Title | Use of a bipolar sealing device to seal partial cystectomy with and without augmentation with a single-layer simple continuous suture pattern in an ex vivo canine model. |
Publication Type | Journal Article |
Year of Publication | 2020 |
Authors | Scharf, VF, Milovancev, M, Townsend, KL, Luff, JA |
Journal | Vet Surg |
Volume | 49 |
Issue | 5 |
Pagination | 1043-1051 |
Date Published | 2020 Jul |
ISSN | 1532-950X |
Keywords | Animals, Cadaver, Cystectomy, Dogs, Male, Neurosurgical Procedures, Pressure, Surgical Equipment, Sutures, Urethra, Urinary Bladder |
Abstract | OBJECTIVE: To evaluate the ability of a bipolar sealing device (BSD) to seal canine bladder tissue and to determine the influence of suture augmentation on resistance to leakage of sealed partial cystectomies. STUDY DESIGN: Ex vivo, simple randomized study. SAMPLE POPULATION: Urinary bladders harvested from canine cadavers (n = 23). METHODS: Partial cystectomy of the cranial third of each bladder was performed with a BSD. This seal was augmented with a simple continuous pattern of 4-0 polydioxanone in half of the specimens. A pressure transducer inserted through the ureter measured intraluminal pressure at initial leakage and catastrophic failure as dyed saline was infused via a catheter inserted through the urethra. Initial leakage pressure and pressure at catastrophic failure were compared between sutured and nonsutured sealed partial cystectomies. RESULTS: Sutured sealed cystectomies showed initial leakage at lower pressures compared to non-sutured cystectomies (8.6 vs. 17.7 mm Hg; P = .0365) but were able to sustain greater pressures at catastrophic failure (34.3 vs. 21.8 mm Hg; P = .007). Catastrophic failure occurred along the seam of all nonsutured sealed cystectomies and at the suture holes in 10 of the 12 sutured bladders. CONCLUSION: Partial cystectomies were effectively sealed with a BSD in this canine cadaveric bladder model. Augmentation with a simple continuous suture pattern increased the pressure at which catastrophic leakage occurred but lowered initial leak pressure. CLINICAL SIGNIFICANCE: This study provides evidence supporting the evaluation of BSD use for partial cystectomy in live animals. |
DOI | 10.1111/vsu.13443 |
Alternate Journal | Vet Surg |
PubMed ID | 32386271 |
PubMed Central ID | PMC7321922 |
Grant List | K01 OD023219 / OD / NIH HHS / United States |