Selected 202 patients from July 2021 to June 2022 due to stenosis or occlusion by July 2022 were randomly divided into control group and observation group, with 101 patients in each group. In the control group, 53 males and 48 females, with mean age of 60.3 ± 13.2 years, educational level: 88 cases below and 13 cases above middle school; in the observation group, 50 males and 51 women, with mean age of 57.8 ± 13.0 years, educational level: 86 cases below and 15 cases above middle school. Inclusion criteria: all patients with autologous stenosis or blockage and balloon distension of arteriovenous fistula; exclusion criteria: patients with mental disorders, heart failure and hyperkalemia. As shown in Table 1 , there was no statistical difference (P > 0.05) in terms of age, gender, or educational level, which was comparable.

Control group take arteriovenous fistula balloon expansion of perioperative routine care, such as: responsibility nurse is mainly admission mission, perform the doctor’s advice, improve the preoperative examination and preoperative preparation, postoperative monitoring of patients with arteriovenous fistula murmur, physical red light treatment, observation without bleeding, hematoma, infection, symptoms of patients with arteriovenous fistula self management knowledge mission.

Patients in the observation group were treated by the clinical care pathway. The Clinical care pathway table is as follows:

Patients in the observation group were treated by the clinical care pathway. On the first day of hospital admission, Introduce patients to the hospitalization environment, hospitalization related precautions, doctors and nurses in charge, Let the patient feel a sense of belonging, Establish a good nurse-patient relationship, To reduce the strangeness of patients coming to the hospital; Check the patient’s internal fistula tremor, the time of occurrence, Understand the psychological status of the patient, According on the psychological status of the patient, Introduce patients to the case of patients with successful surgery, To reduce the psychological burden of the patients, Inform patients of adequate preoperative examinations, To the cooperation of patients, In the process of taking care for the patients, Inhere patients about self-management of arteriovenous fistula, For the knowledge points that patients do not understand. The next day, continue to improve the related examination, such as vascular colour to exceed, the doctor evaluates the patient’s vascular condition, marking, open operation doctor, the nurse according to operation doctor to patients simple operation process and how to cooperate, inform patients and their families of anesthesia and possible adverse reactions after anesthesia. Inform the patient in the process of anesthesia, there may be some pain, immediately inform and remind the patient, relieve the patient to eliminate some restless mood, prevent vasospasm caused by tension, and affect the patient’s operation. Clean the skin before surgery, clean the limbs of the fistula side three times with soapy water, and trim the nails to reduce the risk of surgical infection. Day 3, the patient underwent the surgery, Patients were closely monitored for vital signs changes after surgery, Timely monitoring of internal fistula and tremor, Monitor the internal fistula tremor once hourly, A total of 6 times, The internal fistula tremor will be monitored in each shift later; And observe whether the surgical incision is bleeding, hematoma, subcutaneous congestion and other complications, Whether the tightness of the dressing dressing is appropriate, Limb swelling, etc.; Active care for the patient’s pain profile, To administer pain medications if necessary, Avoid the pain from affecting the patient’s sleep quality; At the first 24 h after the surgery, Keep the arm wound dressing on the internal fistulous side dry and clean, Reduce the risk of infection in the surgical incision; A dialysis was scheduled for the patient on the day after the procedure, Education on self-management of internal fistula, Use Jiang Huili [11] The compiled self-management scale of autologous arteriovenous fistula in maintenance hemodialysis patients evaluated the self-management knowledge of internal fistula, understood the patients’ self-management knowledge of internal fistula, and taught the contents that were not mastered. Inform the patients to master the relevant knowledge of internal fistula, and conduct the internal fistula self-care is very important to protect the function of internal fistula [12] [13] ; To observe whether the patients had subcutaneous hemorrhage and oral mucosal hemorrhage after using anticoagulant drugs, treated the patients with physical red light after surgery, and prepared before discharge, and assessed the self-management knowledge of arteriovenous fistula. On the fourth day, attention was paid to observing the occurrence of postoperative complications, monitoring the tremor of internal fistula, and still preparing for discharge. When the patient was discharged, the self-management knowledge of arteriovenous fistula was assessed, and the patient’s family was informed to participate in the management and maintenance of arteriovenous fistula. To avoid complications due to bad habits and physical diseases, medical staff should be in patients with blood pressure, blood sugar, blood lipid condition periodic management, to delay the internal fistula vascular intimal hyperplasia, reduce vascular toughness, reduce internal fistula stenosis, acute embolism, aneurysm, acute heart failure and other related complications. Guide the patient to conduct monthly B ultrasound examination of arteriovenous fistula; blood calcium and phosphorus. For patients, smokers should be advised to quit smoking.

Compare the five parameters of the two groups: 1) Relevant knowledge mastery; 2) average hospital days; 3) Satisfaction. 4) Complication rate; 5) Hospitalization day and hospitalization expenses.

1) Knowledge of relevant knowledge: The self-management scale of autologous arteriovenous fistula compiled by Jiang Huili [13] was used to test the score. Patients with the higher the score, the better the knowledge effect. 2) Nursing satisfaction questionnaire: Taking the nursing work satisfaction questionnaire formulated by the First Affiliated Hospital of Jinan University, the nursing satisfaction is divided into four levels: very satisfaction: 95 - 100 points, satisfaction: 90 - 94 points, general: 80 - 89 points, dissatisfaction: 80 points below. 3) Complication rate: count patient presence of complications and calculate complication morbidity; 4) hospitalization days and hospitalization costs: count patient hospitalization days and hospitalization costs and calculate the average.

Statistical analysis of the data was performed using the SPSS27.0 software. The count data describe the frequency and composition ratio; the data conforming to normal distribution are represented by the mean and standard deviation; the measurement data with biased distribution is described by the median (interquartile spacing); the measurement data are t test and the count data line χ2 test. If P < 0.05, the difference is statistically significant.