Фіксація катетера за виконання епідуральної анестезії у собак та визначення ризику розвитку бактеріальної інфекції

Abstract

В статті представлені результати фіксації епідуральних катетерів у собак за пролонгованої аналгезії. Катетер фіксували за допомогою лейкопластира (група Л), та підшкірним тунелюванням (група Т). В групі Л, визначено зміщення катетера у 7 тварин з 10, в групі Т катетер надійно був зафіксований З доби. Запальна реакція була більше виражена в групі Т. У однієї собаки в групі Т кінчик катетера містив мікроогранізми Streptococcus spp., Leptotrichia spp.

В статье представлены результаты фиксации эпидуральных катетеров у собак по пролонгированной аналгезии. Катетер фиксировали с помощью лейкопластыря (группа Л), и подкожным туннелированием (группа Т). В группе Л, определено смещение катетера в 7 животных с 10 в группе Т катетер надежно был зафиксирован 3 суток. Воспалительная реакция более выражена в группе Т. В одной собаки в группе Т из катетера было выделенено микроогранизмы Streptococcus spp., Leptotrichia spp.

Background. Reliable and secure fixation of catheter while performing prolonged epidural anaesthesia is an important technical procedure. In veterinary literature is no sufficient information on this issue, because this topic is relevant for the study. Objective. Analyze fixing epidural catheters in dogs when used prolonged analgesia and implementation ovariohysterectomia. Determine the severity of inflammatory tissue reactions at the site of subcutaneous positioning (tunneling) epidural catheter and nature microflora end of the catheter. Methods. Used clinical, bacteriological, microscopic methods investigation. Material for researches were 20 dogs from 6 months to 4 years, live weight 8-35 kg. The animals were clinically healthy, each of them was held ovariohysterectomia. The animals were divided into two groups. The first group included 10 dogs, which used a catheter fixation postoperative plaster (group L), a second group of animals recorded by tunneling the catheter in the subcutaneous tissues (group T). Results. In Group L, where the catheter fixation was performed using plasters specified offset location of the catheter in 7 of 10 animals during the 2-3 days, which limited the use of postoperative analgesia. Іn Group T, where tunneling was performed subcutaneous tissue securely catheter was fixed for 3 days, two groups of dogs were observed shift its location within 0,5-1 cm, while in the epidural space. The inflammatory reaction was observed more of T group because tunelling accompanied subcutaneous tissue trauma. After treatment the skin antiseptic epidural space puncture and catheter setup results of bacteriological study in both groups were negative. Only one of the dogs of the catheter tip T after flushing and culture in nutrient media had microbial landscape: Streptococcus spp., Leptotrichia spp. Conclusion. Tunneling epidural catheter technique allows to achieve the following benefits: ease of fixing procedures; strong fixation of the catheter; preventing bending and reduce the risk of a significant shift of the catheter; minimal risk of contamination; visual inspection of the puncture site; significant duration of fixation; the cost-effectiveness of the procedure. Epidural catheter fixation by subcutaneous placement deep in the tissues (tunneling) is a reliable method that primarily prevention his shift for three days and, does not cause complications in the form of purulent inflammation of tissues. Plasters applying is not provided reliable, long epidural catheter fixation, limiting postoperative analgesia.