Institute of Physiology, Pathophysiology and Biophysics, Unit Nutritional Physiology, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Vienna, Austria.
Institute of Animal Science, University of Hohenheim, Stuttgart, Germany.
J Anim Sci. 2020 Apr 1;98(4). doi: 10.1093/jas/skaa091.
In order to further increase the stability of the cannula behind the ribs and to facilitate cannula exteriorization in growing pigs, the present study aimed to evaluate whether elongation of the cannula flange could increase the stability of the cannula behind the ribs and to develop a tool to improve the exteriorization of the cannula through the ribs. Moreover, it was assessed whether a special skin protection paste and soft polyurethane foam material used in daily skin care could prevent erythema around the fistula. The feasibility of both, the modified simple T-cannula and daily skin care procedure, was evaluated in a digestibility experiment. Simple T-cannulae were made of high-molecular-weight polyethylene and inserted into the distal ileum of eight growing pigs (average body weight at surgery 30 kg). Modifications in the cannula design included a longer flange (11 cm) that was narrowed from the center to the ends and a bending of the flange to adapt it to the curve of the costal arch. In order to reduce the damage to the thread on the outer cannula barrel during surgery, a special surgical plug in conjunction with a screw thread on the inside of the barrel was developed. With respect to the daily cleaning of the fistula, a special skin protection paste was applied on the skin around the fistula to create a waterproof film that entirely sealed the skin. Additionally, foam material was inserted between the retaining ring and the skin to absorb the leaking digesta. Monitoring of the pigs throughout the trial showed that modifications in cannula design proved to be useful as they facilitated exteriorization of the cannula through the ribs and stability of the cannula behind the ribs. Moreover, the use of the skin protection paste and foam material during postsurgical treatment of growing pigs effectively prevented skin irritation around the flank area.
为了进一步提高肋骨后方套管的稳定性，并方便在生长猪中进行套管外置，本研究旨在评估套管法兰的伸长是否能增加肋骨后方套管的稳定性，并开发一种通过肋骨改善套管外置的工具。此外，还评估了在日常皮肤护理中使用的特殊皮肤保护膏和软质聚氨酯泡沫材料是否可以防止瘘管周围出现红斑。改良的简单 T 型套管和日常皮肤护理程序的可行性在一项消化率实验中进行了评估。简单 T 型套管由高分子量聚乙烯制成，并插入到 8 头生长猪的回肠末端（手术时的平均体重为 30 公斤）。套管设计的改进包括更长的法兰（11 厘米），从中心向两端逐渐变细，以及法兰的弯曲以适应肋弓的曲线。为了减少手术中外套管筒上螺纹的损坏，开发了一种特殊的手术塞，与筒内的螺纹配合使用。关于瘘管的日常清洁，在瘘管周围的皮肤上涂抹特殊的皮肤保护膏，形成防水膜，完全密封皮肤。此外，在固定环和皮肤之间插入泡沫材料，以吸收泄漏的消化物。对试验猪的监测表明，套管设计的改进非常有用，因为它们方便了套管通过肋骨的外置和肋骨后方套管的稳定性。此外，在生长猪的术后治疗中使用皮肤保护膏和泡沫材料可有效防止侧腹部周围的皮肤刺激。
