Objective To explore the sedative effects of a low dose of dexmedetomidine (DEX) during percutaneous kyphoplasty (PKP) in the elderly patients.Methods Forty elderly patients with ASA grade Ⅱ-Ⅲ grade who scheduled PKP were divided into DEX group and control group by random digits table method,each group 20 cases.DEX group received an infusion of 0.5 μg/kg for 10 min before the operation,then the infusion speed was adjusted to 0.2 μ g/ (kg·h).An equivalent volume of 0.9％ sodium chloride was administered in control group.Systolic blood pressure(SBP),diastolic blood pressure(DBP),heart rate (HR),and pulse oxygen saturation (SpO2) were recorded at the beginning of DEX infusion (T0),10 min(T1),30 min(T2),60 min(T3) after DEX infusion and the end of operation (T4),Ramsay scores was also recorded.Results HR,SBP,DBP in DEX group at T1-T3 was significantly lower than that T0 and the same time in control group [(65.6 ± 14.6),(63.4 ± 10.2),(66.7 ± 10.5) times/min vs.(81.4 ± 11.2) times/min and (75.3 ±6.9),(72.8 ± 11.4),(73.8 ±9.6) times/min; (127.5 ± 10.2),(125.4 ± 12.6),(122.4 ±7.8) mm Hg(1 mm Hg =0.133 kPa) vs.(152.5 ± 11.8) mm Hg and(145.1 ± 10.6),(137.2 ± 11.3),(142.6 ± 8.8) mm Hg; (73.7 ± 8.9),(70.3 ± 9.9),(70.3 ± 11.5) mm Hg vs.(90.5 ± 11.0) mm Hg and(86.2 ± 11.6),(82.6 ± 10.9),(78.8 ±8.7) mm Hg,P ＜0.05].The Ramsay scores in DEX group at T1-T3 were significantly higher than those T0 and the same time in control group [(3.6 ± 0.8),(4.2 ± 0.8),(3.7 ± 0.5) scores vs.(2.0 ± 0.0)scores and (1.7 ± 0.6),(1.9 ± 0.4),(1.6 ± 0.5) scores,P ＜ 0.05].HR,SBP,DBP in DEX group at T4 was significantly lower than that T0,HR in DEX group at T4 was significandy lower than that in control group,difference was statistically significant(P ＜ 0.05).Bradycardia and applications vasopressors did not occur in two groups.There was no significant difference in SpO2 between DEX group and control group(P＞ 0.05).Conclusion It is both feasible and safe that sedative effect of a small dose of DEX during PKP in the elderly patients.

Objective To evaluate the effects of intravenous analgesia with dezocine combining sufentanil in hip and knee arthroplasty for elderly patients.Methods Ninety patients with ASA Ⅱ ～ Ⅲ and aged ≥ 65 years who were scheduled for hip and knee arthroplasty under CSEA and treated with intravenous analgesia post-operation were selected and divided into three group (20 cases):group Ⅰ (sufentanil 2.5μg/kg + droperidol 2.5 mg),group Ⅱ (sufentanil 2.0 μ g/kg + dezocine 10 mg + droperidol 2.5 mg) and group Ⅲ (intramuscular dezocine 10 mg and sufentanil 2.0 μ g/kg + droperidol 2.5 mg),which were diluted to be 100 ml by adding saline.VSA,Ramsay score as well as side effects were recorded at 6,12 and 24 h after operation.75 mg meperidine was administered intramuscularly as rescue medication when VAS was above 5.Results Compared with group Ⅰ and Ⅲ,group Ⅱ showed better outcomes regarding to the VAS and less side effects.Ramsay score 6 h after operation and the amount of patients who needed meperidine in group Ⅲ were higher than those in the other two groups (P ＜ 0.05).Conclusion Dezocine combining with sufentanil in elderly patients underwent low limb arthroplasty shows better postoperative analgesia effects with less side effects,and it's worth for clinical application.

Objective:To investigate the application value of dual-source CT urography with stellar photon detectors in the diagnosis of gout.Methods:Forty patients who were diagnosed with gout according to American College of Rheumatology Guideline for the Diagnosis of Gout and received treatment between April 2018 and May 2020 were included in the observation group. Forty patients who were concurrently diagnosed with osteoarthritis and received treatment in the same hospital were included in the control group. All patients underwent dual-source CT urography with stellar photon detectors and corresponding biochemical index detection. Blood levels of uric acid, urea nitrogen, creatinine, total cholesterol, and triglyceride were compared between the observation and control groups.Results:Blood levels of uric acid, creatinine, urea nitrogen, total cholesterol, and triglyceride in the observation group were (519.38 ± 97.91) μmol/L, (110.21 ± 18.29) μmol/L, (12.21 ± 3.29) mmol/L, (6.49 ± 1.22) mmol/L, (3.45 ± 1.89) mmol/L, respectively, which were significantly higher than those in the control group (310.45 ± 61.40) μmol/L, (86.22 ± 13.12) μmol/L, (6.82 ± 1.75) mmol/L, (4.75 ± 0.56) mmol/L, (1.98 ± 0.85) mmol/L, respectively ( t = 11.43, 6.741, 9.148, 8.198, 4.486, all P < 0.05). Dual-source CT urography with stellar photon detectors revealed that urate crystals (color coded as green) were detected in 3 and 36 patients from the control and observation groups, respectively, with the detection rate of 7.5% (3/40) and 90% (36/40), respectively. There was significant difference in urate crystal detection rate between the observation and control groups ( χ2 = 24.993, P < 0.05). In the control group, no obvious destruction of bone, tendon and ligament were observed, urate deposition, total volume of (1.023 ± 0.83) cm 3, was found in feet and knee joint of a small number of patients. In the observation group, there were 30 patients with uric acid crystals and bone destruction in the metatarsophalangeal joint ( n = 6), distal tibia ( n = 7), distal fibula ( n = 3), proximal talus ( n = 4), proximal calcaneus ( n = 6), and wrist joint ( n = 4). There were 20 patients with ligament or tendon damage, involving deltoid ligament ( n = 2), Achilles tendon ( n = 10), and extensor and flexor tendon ( n = 53). Total volume of uric acid crystals was (32.22 ± 5.83) cm 3. The volume of uric acid crystals deposited in the hand, elbow, feet and knee was (8.00 ± 4.92) cm 3, (5.32 ± 2.75) cm 3, (36.00 ± 15.54) cm 3, and (13.31 ± 9.14) cm 3, respectively. Conclusion:Dual-source CT urography with stellar photon detectors has a high sensitivity in the diagnosis of gout, can accurately locate and quantify uric acid crystals and is of high application value in the diagnosis of gout.

Objective To understand the current status and influencing factors of patient perception for humanistic care in China hospitals,and to provide a basis for developing nursing humanistic care measures and improving the quality of nursing humanistic care services.Methods A total of 30,099 outpatients and inpatients from 107 hospitals in 30 provinces(autonomous regions and municipalities)from July to August 2022 as survey subjects.A general information questionnaire and the Relational Caring Questionnaire-Patient Form were used for a cross-sectional survey,and a single-factor analysis was used to analyze the influencing factors of patient relationship care.Results Finally,29 108 valid questionnaires were collected,and the effective questionnaire recovery rate was 96.7％.The patient evaluation of relationship care was(65.72±8.61)points.Single-factor analysis showed that gender,age,marital status,children's situation,education level,occupation,place of residence,average family income,medical insurance type,visiting department,and location of the visiting hospital,and whether or not surgery were influencing factors of patient relationship care(P＜0.05).Conclusion The evaluation score of caregiver-patient relationship care among Chinese hospital patients is above average,but there is still room for improvement in western and rural regions,seriously ill and outpatient patients,low-income and low-medical insurance reimbursement populations,and non-surgical patients.Medical institutions at all levels should optimize and improve nursing humanistic care services based on influencing factors,and further enhance patients'perception of nursing humanistic care.