Results 31 to 40 of about 25,315 (294)

Dual tracer navigation for lymph node dissection in laparoscopic radical gastrectomy (DANCE trial): a protocol for a prospective, randomized clinical trial

Trials, 2023
Background Lymph node (LN) metastasis is the most common metastasis route in gastric cancer. Extensive dissection of LNs can significantly improve the prognosis of patients with gastric cancer.
Yanjun Lu, Shichao Ai, Peng Song, Yan Sun, Xiaofei Shen, Feng Sun, Qiongyuan Hu, Zhiyan Li, Meng Wang, Xiaofeng Lu, Wenxian Guan, Song Liu   +11 more
doaj   +1 more source

Experimental designs for multiple-level responses, with application to a large-scale educational intervention

, 2009
Educational research often studies subjects that are in naturally clustered groups of classrooms or schools. When designing a randomized experiment to evaluate an intervention directed at teachers, but with effects on teachers and their students, the ...
Jenney, Brenda, Lohr, Sharon
core   +1 more source

Inhaled PGE1 in neonates with hypoxemic respiratory failure: two pilot feasibility randomized clinical trials. [PDF]

, 2014
BackgroundInhaled nitric oxide (INO), a selective pulmonary vasodilator, has revolutionized the treatment of neonatal hypoxemic respiratory failure (NHRF). However, there is lack of sustained improvement in 30 to 46% of infants.
Ambalavanan, Namasivayam, Bara, Rebecca, Cotten, C Michael, Das, Abhik, Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network, Garg, Meena, Higgins, Rosemary D, Keszler, Martin, Klein, Jonathan M, Lakshminrusimha, Satyan, Malian, Monica, Nelin, Leif D, Ohls, Robin, Saha, Shampa, Sanchez, Pablo J, Shankaran, Seetha, Sood, Beena G, Van Meurs, Krisa P, Wallace, Dennis   +18 more
core   +2 more sources

Levothyroxine Timing during Ramadan: A Randomized Clinical Trial

International Journal of Endocrinology, 2023
Introduction. Hypothyroidism requires lifelong thyroid hormone replacement with levothyroxine. For most hypothyroid patients fasting during Ramadan, compliance with the administration procedure is a challenge. This study aimed to determine the impact of different administration times of levothyroxine on thyroid-stimulating hormone (TSH) and free T4 ...
Moeber Mahzari, Fahad Al Remthi, Ibrahim Ajwah, Mohammed Al Hazmi, Wesam Moafa, Awad Al Shahrani, Sameerah Al Shehri, Motasim Badri   +7 more
openaire   +3 more sources

Beyond A/B Testing: Sequential Randomization for Developing Interventions in Scaled Digital Learning Environments

, 2019
Randomized experiments ensure robust causal inference that are critical to effective learning analytics research and practice. However, traditional randomized experiments, like A/B tests, are limiting in large scale digital learning environments.
Almirall D, Brooks C, Brusilovsky P, Davis D, Dweck CS, González-Brenes JP   +5 more
core   +1 more source

The Knee Arthroplasty Trial (KAT) : design features, baseline characteristics and two-year functional outcomes after alternative approaches to knee replacement [PDF]

, 2009
Background: The aim of continued development of total knee replacement systems has been the further improvement of the quality of life and increasing the duration of prosthetic survival.
Campbell, Marion Kay, Fiddian, Nick, Fitzpatrick, Ray, Grant, Adrian Maxwell, Gray, Alastair, Johnston, Linda, KAT Trial Group, MacLennan, Graeme Stewart, McCormack, Kirsty, Morris, Richard, Murray, David, Ramsay, Craig R, Rowley, David, Walker, Allan   +13 more
core   +1 more source

A randomized clinical trial of thermoplastic retainer wear [PDF]

The European Journal of Orthodontics, 2009
The purpose of this study was to determine whether thermoplastic retainers need to be worn full-time for a limited period or whether part-time wear from the outset is adequate to maintain tooth position, arch form, and occlusion. This study was a randomized clinical trail, conducted in a district general hospital.
E, Thickett, S, Power
openaire   +2 more sources

Ethical considerations in the design, execution, and analysis of clinical trials of chronic pain treatments

PAIN Reports, 2019
. Introduction:. In the field of pain research, clinical trials may randomize over 500 subjects and include more than 150 sites spanning over a dozen countries. Methods:.
Michael C. Rowbotham, Michael P. McDermott   +1 more
doaj   +1 more source

An Analysis of Early Renal Transplant Protocol Biopsies - the High Incidence of Subclinical Tubulitis [PDF]

, 2001
To investigate the possibility that we have been underestimating the true incidence of acute rejection, we began to perform protocol biopsies after kidney transplantation. This analysis looks at the one-week biopsies. Between March 1 and October 1, 1999,
Burdick, D'Ardenne, Hanas, Kjellstrand, Racusen, Randhawa, Rush, Rush, Rush, Saad, Seron, Shapiro, Shapiro, Shapiro, Shapiro, Solez, Starzl   +16 more
core   +1 more source

Assessing the Effect of Intrathecal Alfentanil in the Quality and Duration of Spinal Anesthesia in Cesarean Section and Side Effects: [PDF]

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2010
Background and Objectives: The use of neuraxial opioids has gained popularity over the last few years; they may cause analgesia by the local anesthetic through direct binding with the specific spinal receptors.
Abedin Zadeh M.R., Rasti Brujeni M., Kheiri S   +2 more
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