Results 51 to 60 of about 211,042 (267)

An optimal dose of ropivacaine for ultrasound-guided supraclavicular brachial plexus block: A biased coin design.

open access: yesEuropean Journal of Anaesthesiology, 2021
References 1 Hu B, Zou H, Zou X. Two-handed jaw thrust in patients undergoing intubation with a double-lumen endobronchial tube. Eur J Anaesthesiol 2021; 38:184–185. 2 Park JJ, Huh H, Yoon SZ, et al.
G. Fang, L. Wan, Shiyong Li, A. Luo
semanticscholar   +1 more source

Optimization of programmed intermittent epidural bolus volume for different concentrations of ropivacaine in labor analgesia: a biased coin up-and-down sequential allocation trial

open access: yesBMC Pregnancy and Childbirth, 2022
Background and objectives To date, programmed intermittent epidural bolus (PIEB) has been widely used in obstetric analgesia, while no optimal PIEB regimen has been proposed.
Xin Ran   +3 more
doaj   +1 more source

The estimation of minimum effective volume of 0.5% ropivacaine in ultrasound-guided interscalene brachial plexus nerve block: A clinical trial

open access: yesJournal of Anaesthesiology Clinical Pharmacology, 2019
Background and Aims: Interscalene brachial plexus block (ISB) is the most commonly used mode of anesthesia for upper limb surgeries. Higher volume of local anesthetic used in ISB is associated with increased incidence of side effects, particularly ...
Kailash Mittal   +5 more
doaj   +1 more source

95% effective volume of ropivacaine for ultrasound‑guided supra‑inguinal fascia iliaca compartment block

open access: yesBMC Anesthesiology, 2023
Background Hip arthroplasty is effective in treating hip diseases, such as osteoarthritis and hip fracture, but it often brings severe trauma and pain. In recent years, ultrasound-guided supra-inguinal fascia iliaca compartment block(S-FICB) has become a
Can Zhang, Wei Dai, Kaihua He
doaj   +1 more source

Study on MEV90 of 0.5% ropivacaine for US-guided caudal epidural block in anorectal surgery

open access: yesFrontiers in Medicine, 2023
BackgroundChoosing the appropriate concentration and volume of anesthetics is critical for a successful nerve block. The current study aimed to determine the minimum effective volume (MEV) of 0.5% ropivacaine for US-guided CEB in 90% of patients (MEV90 ...
Pei Zhang   +11 more
doaj   +1 more source

Determination of the 95% effective dose of remimazolam to achieve loss of consciousness during anesthesia induction in different age groups [PDF]

open access: yesKorean Journal of Anesthesiology, 2022
Background Remimazolam is a new ultra short-acting benzodiazepine originally developed as an improved version of midazolam. Recent studies have demonstrated non-inferiority of remimazolam to propofol in general anesthesia.
Juyeon Oh   +6 more
doaj   +1 more source

The distribution of loss in two-treatment biased-coin designs [PDF]

open access: yesBiostatistics, 2003
The paper compares randomized rules of the biased-coin type for the sequential allocation of treatments in a clinical trial. An important characteristic is the loss, which measures the increase in the variance of parameter estimates due to the imbalance caused by randomization. Simulations are used to find the small-sample distribution of loss.
openaire   +2 more sources

Randomness and Noise in Information Systems [PDF]

open access: yes, 2013
This dissertation is devoted to the study of randomness and noise in a number of information systems including computation systems, storage systems, and natural paradigms like molecular systems, where randomness plays important and distinct roles ...
Zhou, Hongchao
core   +1 more source

Seamless Clinical Trials with Doubly Adaptive Biased Coin Designs

open access: yesThe New England Journal of Statistics in Data Science, 2023
In addition to scientific questions, clinical trialists often explore or require other design features, such as increasing the power while controlling the type I error rate, minimizing unnecessary exposure to inferior treatments, and comparing multiple treatments in one clinical trial.
Hongjian Zhu   +3 more
openaire   +1 more source

A study to determine minimum effective dose of oxytocin infusion during caesarean delivery in parturients at high risk of uterine atony

open access: yesJournal of Obstetric Anaesthesia and Critical Care, 2017
Background: Oxytocin, a commonly used drug to prevent uterine atony after caesarean section, should be administered as dilute rapid infusion rather than as a bolus. This study was conducted to calculate ED90 of oxytocin infusion during caesarean delivery
Shashikiran   +3 more
doaj   +1 more source

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