| Objective Compare the clinical safety of epidural catheter made by enhanced polyurea urethane epidural catheter and polyvinyl chloride epidural catheter applied in the general anesthesia combined with epidural anesthesia and postoperative analgesia.Method General anesthesia combined with epidural anesthesia and analgesia cases underwent from2011September to2013March which divided into two groups:A group with the polyurethane epidural catheter for582cases; B group with PVC epidural catheter for470cases as control group. Record detailed information including of epidural puncture process, anesthesia and analgesia pump problems chain and each adverse event.Result There is no statistical significance (P>0.05) between two groups in sex, age, weight and height. There is no significant difference between two groups in operation site (P>0.05).Comparison of two groups in catheter related complications:In the process of catheter placement the probability of vascular injury has no obvious statistical difference (P>0.05).The occurrence of cerebrospinal fluid probability has no obvious statistical difference (P=>0.05).The catheter prolapse probability during process between two groups has no obvious statistical difference (P>0.05).The bending and fracture probability of epidural catheter between two groups appears to have significant statistical difference (P<0.01), including1case in A group (0.17%) while36cases in B group (7.71%), a total of37cases (3.53%).The oozing probability from healing skin sticking has significant difference (P<0.05) between two groups during postoperation,, which has0.69%in group A, while2.78%in group B.The probability of invaild analgesia has no statistically significant difference (P>0.05).The blocking probability of catheter has significant difference(P<0.01), which is0.34%in group A, and7.01%in group B.The probability of incomplete effection has no statistically significant difference (P=>0.05).There was a statistically significant difference between two groups in appearance with the blood at the distal end of catheters during extubation (P<0.01), which has15.86%in group A, while28.27%in group B.The blood volume in extubation has no statistically significant difference (P>0.05).There was a statistically significant difference in catheter damage and rupture probability between two groups (P<0.01), which is0in group A, and9cases in group B. There is no obvious statistical difference (P=>0.05) in resistance probability during extubation. No statistically significant difference in resistance during the process of extraction (P>0.05), and no catheter stub and fracture in any patients.Conclusion Compared with PVC epidural catheter, Polyurethane epidural catheter can reduce the potential risk of epidural vascular insert. However, the epidural catheter once damaged the epidural vessels,No difference in the degree of vascular injury; more suitable for patients of long time duration with the epidural catheter There is complain of a transient paresthesia in catheter removal and some other complains as incomplete anesthesia, epidural catheter prolapse which deprive significant superiority for the catheter. |
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