Objective To explore the effects of application of self-made pipe protective belt for catheter of thrombolysis on treatment of patients with lower limb ischaemia via femoral artery puncture. Methods From March 2016 to December 2016,116 patients with lower limb ischaemia treated with femoral artery puncture in a tertiary hospital in Hebei Province were recruited using convenience sampling method. We divided all patients into the ex-perimental group (58 cases) and the control group (58 cases) according to random number table method. For the experimental group,we used sterile transparent dressings to fix the catheter of thrombolysis,then applied self-made pipe protective belt to fix it.In the control group,we used traditional sterile transparent dressings to fix the catheter of thrombolysis,then used self-adhesive elastic bandage for external fixation by cross overlapping. Incidence rate of accidental extubation,pressure ulcer related to medical equipment (tee joint) and medical adhesive-related skin in-jury from two groups were observed. Results The incidence rate of accidental extubation in the experimental group was lower than that in the control group (P<0.01);there were statistically significant differences in the pressure ul-cer related to medical equipment (tee joint)and medical adhesive-related skin injury between two groups (P<0.05). Conclusion During catheter-directed thrombolysis for patients with lower limb ischaemia via femoral artery punc-ture,the self-made pipe protective belt can reduce the incidence of accidental extubation,avoid adverse events such as related to medical equipment (tee joint)and medical adhesive-related skin injury effectively,and ensure safety of the patients.

Objective To explore the effects of thrombelastogram (TEG) on preventing deep venous thrombosis (DVT) and hemorrhage after surgery for varicosity of lower extremities. Methods Totally 200 patients with varicosity of lower extremities who received exfoliation of great saphenous veins combined with transilluminated powered phlebectomy (TIPP) in a ClassⅢ Grade A hospital in Hebei Province from March 2016 to May 2017 by convenient sampling, and divided into the observation group (n=101) and the control group (n=99) according to the random number table. Patients in the observation group were evaluated with Caprini's DVT Assessment Model 24 hours before surgery. Patients who scored 3 or above received TEG monitoring 24 hours before surgery and on days 1, 3 and 7 post surgery, and received hierarchical interventions. Patients in the control group received conventional nursing care during the perioperative period, and empirical anticoagulation measures were taken based on the results of blood and coagulation routine examinations. Color Doppler ultrasonography was used to observe the incidence of DVT in both extremities in the patients one week post surgery, and the incidence of hemorrhage were also observed in patients in the two groups, including hemorrhage running out of dressings, incision bleeding and subcutaneous hematoma. Results DVT was found in 1 patient in the observation group (0.99%) and 8 patients in the control group (8.08%); hemorrhage running out of dressings was found in 3 patients in the observation group, incision bleeding in 2 patients and subcutaneous hematoma in 5 patients, while hemorrhage running out of dressings was found in 10 patients in the control group, incision bleeding in 9 patients and subcutaneous hematoma in 13 patients. There were statistical differences between the two groups (P＜0.05). Conclusions TEG dynamic monitoring combined with Caprini's DVT Assessment Model used in hierarchical interventions for patients with varicosity of lower extremities who receive exfoliation of great saphenous veins combined with TIPP reduces the incidence of DVT and hemorrhage, effectively avoids adverse events postoperatively, and ensures the patients' safety.