Читать книгу Gastrointestinal Surgical Techniques in Small Animals - Группа авторов - Страница 54

This suture pattern is intended to close a hollow organ opening or body aperture, such as the anal opening, or around a tube entrance in viscera (Figure 3.7). It is often utilized around the anal opening to prevent fecal contamination during perineal surgery, and to create a seal around a feeding tube placed in hollow viscera, as in a gastrostomy tube procedure. As the suture is placed around the site, tension on the suture end will tighten the continuous pattern much like a purse being pulled together at its neck with a string. The suture pattern is begun with parallel 3–4 mm bites of tissue about 3–5 mm away from the opening or cut edge. Each successive bite is advanced no more than 2–3 mm from the exit site of the last purchase. This forms a circular pattern around the centrally located opening. At the end of the pattern, both beginning and ending suture strands are in close apposition to each other. The strands are pulled firmly to form a tight cuffed rim of tissue around the tube or orifice, preventing leakage.