AIM: To evaluate the feasibility, reproducibility and efficacy of a new tissue anchoring device in a porcine survival model. METHODS: Gastrotomies were performed using a needle-knife and balloon dilator in 10 female Yorkshire pigs weighing 30-35 kg. Gastric closure was attempted using a new tissue anchoring device. The tightness of the closure was confirmed by means of air insufflation and the ability to maintain gastric distension with stability in peritoneal pressure measured with a Veress needle. All animals were monitored daily for signs of peritonitis and sepsis over 14 d. During necropsy, the peritoneal cavity and the gastric access site were examined. RESULTS: Transgastric access, closure and 14 d survival was achieved in all pigs. The mean closure time was 18.1 ± 19.2 min and a mean of 2.1 ± 1 devices were used. Supplementary clips were necessary in 2 cases. The closure time was progressively reduced (24.8 ± 13.9 min in the first 5 pigs vs 11.4 ± 5.9 min in the last 5, P = NS). At necropsy, the gastric access site was correctly closed in all cases with all brace-bars present. One device was misplaced in the mesocolon. Minimal adhesions were observed in 3 pigs and signs of mild peritonitis and adhesions in one. CONCLUSIONS: The use of this new tissue anchoring device in porcine stomachs is feasible, reproducible and effective and requires a short learning curve.
AIM: To evaluate the feasibility, reproducibility and efficacy of a new tissue anchoring device in a porcine survival model. METHODS: Gastrotomies were performed using a needle-knife and balloon dilator in 10 female Yorkshire pigs weighing 30-35 kg. Gastric closure was attempted using a new tissue anchoring device. The tightness of the closure was confirmed by means of air insufflation and the ability to maintain gastric distension with stability in peritoneal pressure measured with a Veress needle. All animals were monitored daily for signs of peritonitis and sepsis over 14 d. During necropsy, the peritoneal cavity and the gastric access site were examined. RESULTS: Transgastric access, closure and 14 d survival was achieved in all pigs. The mean closure time was 18.1 ± 19.2 min and a mean of 2.1 ± 1 devices were used. Supplementary clips were necessary in 2 cases. The closure time was progressively reduced (24.8 ± 13.9 min in the first 5 pigs vs 11.4 ± 5.9 min in the last 5, P = NS). At necropsy, the gastric access site was correctly closed in all cases with all brace-bars present. One device was misplaced in the mesocolon. Minimal adhesions were observed in 3 pigs and signs of mild peritonitis and adhesions in one. CONCLUSIONS: The use of this new tissue anchoring device in porcine stomachs is feasible, reproducible and effective and requires a short learning curve.
Authors: Anthony N Kalloo; Vikesh K Singh; Sanjay B Jagannath; Hideaki Niiyama; Susan L Hill; Cheryl A Vaughn; Carolyn A Magee; Sergey V Kantsevoy Journal: Gastrointest Endosc Date: 2004-07 Impact factor: 9.427
Authors: Keiichi Ikeda; Annette Fritscher-Ravens; C Alexander Mosse; Tim Mills; Hisao Tajiri; C Paul Swain Journal: Gastrointest Endosc Date: 2005-07 Impact factor: 9.427
Authors: Sergey V Kantsevoy; Sanjay B Jagannath; Hideaki Niiyama; Sydney S C Chung; Peter B Cotton; Christopher J Gostout; Robert H Hawes; Pankaj J Pasricha; Carolyn A Magee; Cheryl A Vaughn; David Barlow; Hideki Shimonaka; Anthony N Kalloo Journal: Gastrointest Endosc Date: 2005-08 Impact factor: 9.427
Authors: Kazuki Sumiyama; Christopher J Gostout; Elizabeth Rajan; Timothy A Bakken; Jodie L Deters; Mary A Knipschield Journal: Gastrointest Endosc Date: 2007-01 Impact factor: 9.427