道外围插入的中央导管与非道和其对临床结果的影响:一个多中心随机临床试验协议
Rodrigo do Nascimento Ceratti1, Knut Taxbro2,3, Vineet Chopra4
1Hospital de Clínicas de Porto Alegre, Vascular Access Program, Rio Grande do Sul, Brazil.
PloS one
|March 10, 2026
概括
这项研究比较了道式与传统的外围插入中心导管 (PICC),以减少感染和血栓形成等并发症. 目标是确定道是否提高了成人患者的PICC安全性和疗效.
科学领域:
- 医疗器械 医疗器械
- 血管接入 血管接入
- 临床试验 临床试验
背景情况:
- 周围插入的中央导管 (PICC) 越来越多地被用于其益处,但感染和血栓形成等并发症仍然存在,特别是在瘤和ICU患者中.
- 技术进步提高了PICC质量,但风险仍然存在,突出了对先进实践和专业团队的需求.
- 新的技术,如道插入,在减少PICC相关的并发症方面显示出希望,但需要进一步验证.
研究的目的:
- 为了比较与导管相关的血液感染,血栓形成,闭塞和突移在道和非道PICC插入技术之间的发生率.
- 评估道化技术在30天内在成人患者中减少联合不良事件的有效性.
- 提供关于皮肤下道入PICC插入的疗效的证据,以尽量减少并发症.
主要方法:
- 一个随机,并行,多中心的临床试验,涉及3家医院的840名成年患者.
- 通过计算机生成的分层随机化,患者被分配到传统的PICC插入组或道化PICC插入组.
- 随访一直持续到PICC被移除或插入后30天,主要结果是不良事件的发生率.
主要成果:
- 这项研究是随机临床试验的协议,结果正在等待.
- 主要结果是评估皮下道是否与传统方法相比降低了感染,血栓形成,阻塞和脱落的速度.
- 需要对更大的样本进行进一步的研究,以验证道PICC插入的发现.
结论:
- 皮下道已被认为可以减少导管并发症,但其在PICC插入中的具体应用需要进一步研究,特别是在巴西.
- 随机临床试验对于客观评估皮下道对PICC插入并发症的影响至关重要.
- 该协议旨在产生关于道PICC技术在减少不良事件方面的有效性强有力的证据.
相关概念视频
01:12What is an Experiment?
12.3K
An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
12.3K
01:13Controls in Experiments
13.1K
When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more reliable. Controls are elements in an experiment that have the same characteristics as the treatment groups but are not affected by the independent variable. By sorting these data into control and experimental conditions, the relationship between the dependent and independent variables can be drawn. A randomized experiment always includes a...
13.1K
01:13Randomized Experiments
6.3K
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Simple randomization
Simple...
6.3K
01:16Crossover Experiments
3.4K
Crossover experiments, also called the repeated-measurements design, is a study design in which all experimental units are exposed to all treatments in different periods. Crossover experiments are generally used in psychology, the pharmaceutical industry, agriculture, and medicine.
Crossover designs are performed even with smaller sample sizes since the samples can act as their controls. These are better than simple randomized trials since patients are exposed to all the treatments.
Crossover designs are performed even with smaller sample sizes since the samples can act as their controls. These are better than simple randomized trials since patients are exposed to all the treatments.
3.4K
01:11Blinding
2.9K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
2.9K
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
627
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
627