头颈癌患者患病体验及需求质性研究的Meta整合

目的 系统评价和整合头颈癌患者患病体验及需求的质性研究,为制定针对性的照护方案提供参考。方法 检索PubMed、Web of Science、Embase、Cochrane Library、中国知网、万方数据库、维普科技期刊数据库和中国生物医学文献数据库,搜集建库至2023年2月关于头颈癌患者患病体验及需求的质性研究,采用JBI质性研究质量评价标准对文献质量进行评价,并对结果进行Meta整合。结果 共纳入13篇文献,提炼出55个主题,归纳形成10个类别,合成3个整合结果：症状困扰影响患者的心理健康和社会适应,患者经历创伤后成长并采取了一系列应对策略,多元化且未得到充分满足的需求。结论 头颈癌患者身心受到严重创伤,为促进患者的创伤后成长,医护人员应该重视患者的患病体验,并以需求为导向制定个性化的延续护理方案。     

国内肾移植术后患者心理体验的质性Meta整合

目的系统评价肾移植患者术后心理体验。方法计算机检索数据库中国知网、万方数据库、维普数据库、中国生物医学文献数据库,搜索关于肾移植患者术后真实体验的质性研究,检索时限从建库至2018年5月。进行文献质量评价后,采用Meta整合方法对研究结果进行归纳、诠释。结果共纳入8篇文献,提炼出52个结果、6个类别和3个整合结果,分别为肾移植术后患者消极心理、肾移植术后患者对未来与生命的心理感受、肾移植术后患者的自身健康需求与期望。结论医护人员应充分了解肾移植术后患者心理体验,做好针对性心理干预,引导患者调整认知和行为方式,提高患者的术后生活质量,并且增强患者对未来生活的心理资本。     

癌症患者决策辅助工具应用体验质性研究的Meta整合

目的 对成年癌症患者决策辅助工具应用体验进行系统整合,为开发我国本土化决策辅助工具、实现共享决策提供循证指导。方法 计算机检索PubMed、Cochrane Library、CINAHL、Embase、Web of Science、ProQuest、中国知网、万方数据库、维普网、中国生物医学文献数据库中关于癌症患者决策辅助工具应用体验的质性研究,检索时限为建库至2023年7月。采用JBI 循证卫生保健中心质性研究质量评价标准（2020）进行文献质量评价,以Meta整合方法对文献研究结果进行整合。结果 纳入17篇文献,提炼出50个研究结果,归纳出7个类别,最终形成3个整合结果：患者对决策辅助工具总体满意度较高、增强患者决策参与体验、阻碍因素。结论 决策辅助工具可以帮助癌症患者了解治疗方案并积极参与决策,满足患者的决策需求,缓解决策冲突,从而改善患者的临床结局。     

肿瘤患者味觉改变体验及应对质性研究的Meta整合

目的 系统评价肿瘤患者味觉改变体验及应对的质性研究,为制订针对性干预方案提供参考。 方法 计算机检索PubMed、CINAHL、Web of Science、Embase、Scopus、ProQuest、中国知网、万方数据等数据库中有关肿瘤患者味觉改变体验及应对的质性研究,检索时限为建库至2022年4月。采用JBI循证卫生保健中心的质性研究质量评价标准进行文献质量评价,采取汇集性整合方法整合研究结果。 结果 纳入14篇文献,提炼出69个主题,归纳成5个类别,综合形成味觉改变体验的复杂多变、多元化的管理策略2个整合结果。 结论 肿瘤患者味觉改变复杂多变,负面影响患者的生活。护士应关注肿瘤患者味觉改变体验,给予持续、动态评估,加强健康教育,协助患者提高症状管理自我效能,提升味觉改变管理能力。     

护士亲历患者自杀事件后真实体验质性研究的Meta整合

目的 系统评价护士亲身经历患者自杀事件后真实体验的质性研究,为设计有效的应对策略提供依据.方法 检索Cochrane Library、Ovid、中国知网等数据库中护士亲历患者自杀后的质性研究.采用澳大利亚JBI循证卫生保健中心质性研究质量评价标准对纳入文献的方法学进行质量评价,依据其汇集性整合方法进行结果整合.结果 共...     

女性终末期肾病患者疾病体验质性研究的Meta整合

目的 系统整合女性终末期肾病患者疾病体验，为医护人员优化过渡期护理，改善患者生活质量提供参考。 方法 计算机检索PsycINFO、PubMed、Embase、CINAHL和中国知网、中国生物医学文献数据库、万方数据库，收集关于女性终末期肾病患者疾病体验的质性研究，检索时限为建库至2022年12月。运用JBI质性研究质量评价标准评价纳入文献的质量，采用汇集性整合方法对结果进行整合。 结果 共纳入8篇文献，提炼出28个完好明确的研究结果，将相似结果归纳为8个新的类别，并综合成3个整合结果：过渡期疾病体验、女性角色功能受损、妊娠风险决策。 结论 医护人员应重视女性终末期肾病患者疾病体验，优化过渡期护理，提升患者角色适应水平，改善育龄期患者妊娠决策辅助，最终提升患者长期生活质量。     

成年癌症患者生育力保存决策体验质性研究的Meta整合

目的 系统整合癌症患者生育力保存决策体验的质性研究,为辅助癌症患者做决策及改进现有决策支持体系提供循证依据。方法 计算机检索PubMed、EMbase、The Cochrane Library、CINAHL、Web of Science、PsycINFO、Scopus、中国知网、万方数据库、维普数据库关于癌症患者生育力保存决策的质性研究,检索时限为建库至2022年8月。采用JBI循证卫生保健中心质性研究质量评价标准对文献进行质量评价,采用Meta整合中汇集性整合方法对结果进行整合。结果 共纳入18篇文献,提炼出67个研究结果,将相似结果归纳成7个新的类别,并综合成3个整合结果：对生育力保存风险-收益的艰难权衡,紧迫决策下复杂的心理变化过程,决策过程的干扰。结论 医护人员及相关卫生机构应重视癌症患者生育力保存决策的心理体验和信息需求,优化决策程序、开发决策辅助方案,促进患者尽快完成决策。     

分娩时肛门括约肌损伤产妇真实体验的Meta整合

目的 系统评价分娩时肛门括约肌损伤产妇的真实体验,为制订针对性护理措施提供参考。方法计算机检索PubMed、Embase、Web of Science、Medline、中国知网、万方、维普等中英文数据库,检索关于分娩时肛门括约肌损伤产妇真实体验和心理感受的质性研究,检索时限为建库至2022年1月。依据2016版澳大利亚JBI循证卫生保健中心质性研究质量评价标准评价文献质量,利用汇集性整合法进行结果整合。结果共纳入10篇研究,提炼出91研究结果,将相似结果归纳形成8个新类别,最终得出4个整合结果：对日常生活的影响,对身心方面的影响,产妇缺乏医疗支持与互动,积极恢复、继续生活。结论护理人员应关注和了解分娩时肛门括约肌损伤产妇的真实体验,识别肛门括约肌损伤高危因素,给予针对性干预措施,同时建立多学科产后随访团队,协助产妇更好地重返社会,提高生活质量。     

癌症患者诊断知情心理体验质性研究的Meta整合

目的 系统评价癌症患者诊断知情心理体验,为临床制订更全面和更有针对性的疾病告知方式提供参考.方法 计算机检索PubMed、The Cochrane Library、Medline、中国知网、万方数据等数据库,检索癌症患者诊断知情心理体验质性研究文献,检索时限为建库至2020年12月,采用质性研究质量评价标准进行文献质量评价,并对文献进行Meta整合.结果 纳入18项研究,将文献提炼出的62个主题归纳成12个新的类别,综合成3个整合结果,即多重因素影响癌症患者对诊断的接受度、诊断告知方式方法、获悉患病信息后的改变.结论 癌症患者诊断知情的开展受多种因素影响,不同患者获知疾病诊断后的反应不同.医护务人员开展疾病告知前应充分做好评估,选择适宜的病情告知模式,减少患者获知疾病诊断所致的伤害.     

医务人员对患者参与患者安全知信行质性研究的Meta整合

目的评价医务人员对患者参与患者安全的知信行,为医务人员实施患者安全管理提供决策依据。方法计算机检索PubMed、CINAHL、Web of Science、中国知网、万方数据库、维普数据库、中国生物医学文献数据库关于医务人员对患者参与患者安全知信行的质性研究,检索时限从建库至2019年2月。采用2017版澳大利亚循证卫生保健中心质性研究评价标准(JBI-QARI)进行文献质量评价,采用汇集性整合方法进行Meta整合,对研究结果进行比较、分析、归纳、诠释和综合。结果共纳入8篇文献,提炼出50个研究结果,归纳形成9个类别,综合成为4个整合结果,分别为医务人员的认知观念、秉持的态度、情感体验、实践困境。结论医疗机构应高度重视医务人员对患者参与患者安全的知信行,促进医疗安全文化环境的构建,不断改进患者安全管理决策与实践,保障患者安全。     

Vasopressor hormone response following mesenteric traction during major abdominal surgery

Background : We investigated the vasopressor hormone response following mesenteric traction (MT) with hypotension due to prostacyclin (PGI₂) release in patients undergoing abdominal surgery with a combined general and epidural anesthesia. Methods : In a prospective, randomized, placebo-controlled study we administered 400 mg ibuprofen (i.v.) in 42 patients scheduled for abdominal surgery. General anesthesia was combined with epidural anesthesia (T4-L1). Before as well as 5, 15, 30, 45, and 90 min after MT we recorded plasma osmolality, hemodynamics and measured 6-keto-PGFlα (stabile metabolite of PGI₂), TXB₂ (stabile metabolite of thromboxane A₂) active renin, and arginine vasopressin (AVP) plasma concentrations by radioimmunoassay. Catecholamine levels were assessed by high-pressure liquid chromatography (HPLC) with electrochemical detection. Results : Following MT, arterial hypotension occurred along with a substantial PGI₂ release. This was completely abolished by ibuprofen administration. Although plasma levels of 6-keto-PGF_1α (1133 (708) vs. 60 (3) ng/L, median (median absolute deviation), P=0.0001, placebo vs. ibuprofen) remained significantly elevated, blood pressure was restored within 30 min after MT in the placebo group. At the same point in time plasma concentrations of TXB² (164 (87) vs. 58 (1) ng/L, P=0.0001), epinephrine (46 (33) vs. 14 (6) ng/L, P=0.001), AVP (41 ± (18) vs. 12 (7) ng/L, P=0.0004), and active renin (27 (12) vs. 12 (4) ng/L, P = 0.001) were significantly higher in placebo-treated patients. Conclusion : Under combined general and epidural anesthesia arterial hypotension following MT due to endogenous PGI₂ release is associated with enhanced release of AVP, active renin, epinephrine and thromboxane A₂, presumably contributing to hemodynamic stability within 30 min after MT.     

A Teaspoon Pump for Pumping Blood with High Hydraulic Efficiency and Low Hemolysis Potential

Abstract: Virtually all blood pumps contain some kind of rubbing, sliding, closely moving machinery surfaces that are exposed to the blood being pumped. These valves, internal bearings, magnetic bearing position sensors, and shaft seals cause most of the problems with blood pumps. The original teaspoon pump design prevented the rubbing, sliding machinery surfaces from contacting the blood. However, the hydraulic efficiency was low because the blood was able to "slip around" the rotating impeller so that the blood itself never rotated fast enough to develop adequate pressure. An improved teaspoon blood pump has been designed and tested and has shown acceptable hydraulic performance and low hemolysis potential. The new pump uses a nonrotating "swinging" hose as the pump impeller. The fluid enters the pump through the center of the swinging hose; therefore, there can be no fluid slip between the revolving blood and the revolving impeller. The new pump uses an impeller that is comparable to a flexible garden hose. If the free end of the hose were swung around in a circle like half of a jump rope, the fluid inside the hose would rotate and develop pressure even though the hose impeller itself did not "rotate"; therefore, no rotating shaft seal or internal bearings are required.     

Microspheres Based Detoxification System: A New Method in Convective Blood Purification

Abstract: A variety of protein-bound or hydrophobic substances, accumulating as a result of pathologic conditions such as exogenous or endogenous intoxications, are removed poorly by conventional detoxification methods because of low accessibility (hemodialysis), insufficient adsorption capabilities (hemosorption), low efficiency (peritoneal dialysis), or economic limitations (high-volume plasmapheresis). Combining advantages of existing methods with microspheric technology, a module-based system was designed. Major operating parameters of the latter can be modified to allow for adjustment to individual clinical situations. An extracorporeal blood circuit including a plasmafilter is combined with a secondary high-velocity plasma circuit driven by a centrifugal pump. Different microspheric adsorbers can be combined in one circuit or applied in sequence. Thus, a prolonged treatment can be tailored using specially designed selective adsorber materials. Comparing this system with existing methods (high-flux hemodialysis, molecular adsorbent recycling system), results from our in vitro studies and animal experiments demonstrate the superior efficiency of substance removal.     

Tissue perfusion in relation to cardiac output during continuous positive-pressure ventilation and administration of propranolol or verapamil

Background : Our objective was to determine whether administration of propranolol or verapamil modifies the hemodynamic adaptation to continuous positive-pressure ventilation (CPPV), in particular the regional distribution of cardiac output (CO).
Methods : General hemodynamics and regional blood flows assessed by microsphere technique (15 (μm) were recorded in 16 anesthetized pigs during spontaneous breathing (SB) and CPPV with 8 cm H₂O end-expiratory pressure (CPPV8) before and after intravenous administration of propranolol (0.3 mg · kg⁻¹ followed by 0.15 mg · kg⁻¹ · h⁻¹, n=8) or verapamil (0.1 mg · kg⁻¹ followed by 0.3 mg · kg⁻¹ · h⁻¹, n=8).
Results : CPPV8 depressed CO by 25% without shifts in its relative distribution with the exception of a noteworthy increase in adrenal perfusion. Propranolol increased arterial blood pressure, and due to a fall in heart rate, CO dropped by 25%. The kidneys and, to a lesser extent, the splanchic region and central nervous system received increased fractions of the remaining CO at the expense of skeletal muscle flow. Similar patterns were seen during SB and CPPV8 such that the combination of propranolol and CPPV8 depressed CO by 50%. The circulatory effects of verapamil were less evident but myocardial perfusion tended to increase.
Conclusions : The combination of propranolol or verapamil with CPPV does not result in any specific hemodynamic interaction in anesthetized pigs, except that the combined effect of propranolol and CPPV may severely reduce CO.     

Bariatric Surgery in Some "Central and East-European (former Eastern bloc)"Countries - Current Status and Prediction for the Next Millennium

Background: Obesity is increasing globallly, including in the formerly "Eastern Bloc" countries. Methods: A survey was made of obesity and bariatric surgery. Results: In the 8 East and Central European countries studied, with total population 300 million, roughly 43% of the population was overweight (BMI 25-30), 23% obese (BMI > 30), with about 15 million people morbidly obese (BMI > 40). From 0-10 morbidly obese individuals/100,000/year undergo bariatric surgery. Conclusion: Most countries were found to provide inadequate treatment for obesity.The majority of the morbidly obese are not treated effectively. However, health-care awareness of obesity and bariatric surgeons are slowly increasing.     

Volatile anaesthetics reduce adhesion of blood platelets under low-flow conditions in the coronary system of isolated guinea pig hearts

Background : Inhibitory effects of volatile anaesthetics on platelet aggregation have been demonstrated in several studies. However, the influence of volatile anaesthetics on intracoronary platelet adhesion has not been elucidated so far.
Methods : Isolated hearts of guinea pigs were perfused with buffer in the absence or presence of volatile anaesthetics (0.5 and 1 MAC) at constant coronary flow rates of 5 ml/min for 25 min, then 1 ml/min for 30 min and again 5 ml/min for 10 min. Before, during and after low-flow perfusion, a bolus of human platelets was applied into the coronary system. To simulate thrombogenic conditions, 0.3 U/ml human thrombin was infused during low-flow perfusion and reperfusion. The number of platelets sequestered to the endothelium was calculated from the difference between coronary in- and output of platelets. The myocardial production of lactate and consumption of pyruvate and coronary perfusion pressure were also determined.
Results : At a flow rate of 5 ml/min only about 3% of the applied platelets did not emerge from the coronary system, in any group. In contrast, 13.1±1.2% (mean±SEM) of infused platelets became adherent in low-flow perfusion in the control group without anaesthetic. The adherence was reduced with each 1 MAC isoflurane (to 6.2±1.2%), sevoflurane (to 4.4±0.9%) or halothane (to 3.2±1.5%) (each P <0.05 vs. control). Volatile anaesthetic, 0.5 MAC, did not inhibit platelet adhesion to a statistically significant extent in any case. Perfusion pressure and metabolic parameters were not statistically different between the control and the hearts exposed to anaesthetics.
Conclusion : Volatile anaesthetics in a concentration of 1 MAC can reduce the adhesion of platelets in the coronary system under reduced flow conditions. This action does not arise from vasodilation or inhibition of ischaemic stress.     

Synergistic interaction between the effects of propofol and midazolam with fentanyl on phrenic nerve activity in rabbits

Background: It has been shown that the depressive effects of both propofol and midazolam on consciousness are synergistic with opioids, but the nature of their interactions on other physiological systems, e. g. respiration, has not been fully investigated. The present study examined the effect of propofol and midazolam alone and in combination with fentanyl on phrenic nerve activity (PNA) and whether such interactions are additive or synergistic. Methods: PNA was recorded in 27 anaesthetised and artificially ventilated rabbits. In three groups, propofol, fentanyl and midazolam were administered intravenously in incremental doses to construct dose-response curves for the depressant effects of each one on PNA. In another two groups, the effect of pretreatment with either fentanyl 1 μg · kg^?1 i. v. or midazolam 0.05 mg · kg^?1 i. v. on the effects of propofol and fentanyl respectively on PNA were studied. Results: Propofol and fentanyl caused a dose-dependent depression of PNA with complete abolition at the highest total doses of 16 mg · kg^?1 i. v. and 32 μg · kg^?1 i. v., respectively. In contrast, midazolam in incremental doses to a total of 0.8 mg · kg^?1 reduced mean PNA by 63%, but approximately 12% of PNA remained at a total dose as high as 6.4 mg · kg^?1. The mean ED₅₀s, calculated from dose-response curves, were 5.4 mg · kg^?1, 3.9 μg · kg^?1 and 0.4 mg · kg^?1 for propofol, fentanyl and midazolam, respectively. Initial doses of either fentanyl 1 μg · kg^?1 i. v. or midazolam 0.05 mg · kg^?1 i. v. acted synergistically with subsequent doses of either propofol or fentanyl to abolish PNA at total doses of 8 mg · kg^?1 and 8 μg · kg^?1, respectively. Conclusion: Fentanyl has a synergistic interaction with both propofol and midazolam on PNA and hence potentially on respiration.     

Influence of dopexamine hydrochloride on haemodynamics and regulators of circulation in patients undergoing major abdominal surgery

Background: Catecholaminergic support is often used to improve haemodynamics in patients undergoing major abdominal surgery. Dopexamine is a synthetic vasoactive catecholamine with beneficial microcirculatory properties. Methods: The influence of perioperative administration of dopexamine on cardiorespiratory data and important regulators of macro- and microcirculation were studied in 30 patients undergoing Whipple pancreaticduodenectomy. The patients received randomized and blinded either 2 μg · kg^?1 · min^?1 of dopexamine (n=15) or placebo (n=15, control group). The infusion was started after induction of anaesthesia and continued until the morning of the first postoperative day. Endothelin-1 (ET-1), vasopressin, atrial natriuretic peptide (ANP), and catecholamine plasma levels were measured from arterial blood samples. Measurements were carried out after induction of anaesthesia, 2 h after onset of surgery, at the end of surgery, 2 h after surgery, and on the morning of the first postoperative day. Results: Cardiac index (CI) increased significantly in the dopexamine group (from 2.61±0.41 to 4.57±0.78 1 · min^?1 · m^?2) and remained elevated until the morning of the first postoperative day. Oxygen delivery index (DO₂I) and oxygen consumption index (VO₂I) were also significantly increased in the dopexamine group (DO₂I: from 416±91 to 717±110 ml/m² · m²; VO₂I: from 98±25 to 157±22 ml/m² · m²), being significantly higher than in the control group. pHi remained stable only in the dopexamine patients, indicating adequate splanchnic perfusion. Vasopressive regulators of circulation increased significantly only in the untreated control patients (vasopressin: from 4.37±1.1 to 35.9±12.1 pg/ml; ET-1: from 2.88±0.91 to 6.91±1.20 pg/ml). Conclusion: Patients undergoing major abdominal surgery may profit from prophylactic perioperative administration of dopexamine hydrochloride in the form of improved haemodynamics and oxygenation as well as beneficial influence on important regulators of organ blood flow.     

Systemic analgesia adapted to the children's condition

A concept of balanced analgesia using nonsteroidal anti-inflammatory drugs (NSAIDs), paracetamol (acetaminophen), opioids, and corticosteroids can also be used in patients with pre-existing illnesses. NSAIDs are the most effective treatment for acute pain of moderate intensity in children; however, these drugs should be avoided in patients at increased risk for serious side effects, e.g. patients with renal impairment, bleeding tendency, or extreme prematurity. NSAIDs can be given with minimal risks to the younger child with mild to moderate asthma, and, in these patients, the use of steroids can be encouraged; in addition to their antiemetic and analgesic action, a beneficial effect on asthma symptoms can be expected. In the non-intubated child with cerebral trauma, exaggerated sedation caused by opioids and increased bleeding tendency caused by NSAIDs must be avoided. In neonates and small infants, the oral administration of sucrose or glucose is helpful to minimize pain reaction during short uncomfortable interventions.     

A comparison of the inhibitory effects of four volatile anaesthetics on the metabolism of chlorzoxazone, a substrate for CYP2E1, in rabbits

Background: Halothane inhibits in vitro and in vivo activity of cytochrome P-450 (CYP) 2E1. There are several fluorinated volatile anaesthetics besides halothane, and most of them are defluorinated by CYP2E1. It is unclear whether other fluorinated anaesthetics inhibit the in vivo activity of CYP2E1.
Methods: We compared the inhibitory effects of therapeutic concentrations of four inhalational anaesthetics, halothane, enflurane, isoflurane, and sevoflurane, on chlorzoxazone metabolism in rabbits receiving artificial ventilation.
Results: All four inhalational anaesthetics decreased arterial blood pressure and increased plasma chlorzoxazone concentration. However, no significant differences in the plasma chlorzoxazone concentration were found between the four anaesthetics. The estimated chlorzoxazone clearance increased after beginning inhalation with all four agents, but no significant difference in clearance was noted between agents.
Conclusions: At therapeutic concentrations, the in vivo inhibitory effect on chlorzoxazone metabolism was similar for all four inhalational anaesthetics examined, even though their chemical characteristics and extent of hepatic metabolism differ considerably.