Endoscopic Therapy for Bleeding Ulcers: An Evidence-Based Approach Based on Meta-Analyses of Randomized Controlled Trials

2009 ◽  
Vol 7 (1) ◽  
pp. 33-47 ◽  
Author(s):  
Loren Laine ◽  
Kenneth R. McQuaid

Conditions of the ear, nose, or throat (ENT) are common diagnoses in primary care and are a frequent indication for referral to secondary care. They have a major impact on health and health-care resources, and it is therefore important that the management of ENT conditions is based upon the best available evidence. Such evidence should come from methodologically sound research in patients representative of those seen in everyday practice. Over the past decades, general practitioners and ENT surgeons have embraced the principles of evidence-based medicine, actively contributing to randomized controlled trials in this field. Consequently, management of ENT conditions is shifting from experience-based to evidence-based. The randomized controlled trials and individual patient data meta-analyses presented in this chapter have been instrumental in the development of clinical guidelines that allow general practitioners and ENT surgeons to make evidence-based shared decisions for the management of some of the commonest ENT conditions.


Healthcare ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 479
Author(s):  
Tatiana Sidiropoulou ◽  
Kalliopi Christodoulaki ◽  
Charalampos Siristatidis

A pre-procedural ultrasound of the lumbar spine is frequently used to facilitate neuraxial procedures. The aim of this review is to examine the evidence sustaining the utilization of pre-procedural neuraxial ultrasound compared to conventional methods. We perform a systematic review of randomized controlled trials with meta-analyses. We search the electronic databases Medline, Cochrane Central, Science Direct and Scopus up to 1 June 2019. We include trials comparing a pre-procedural lumbar spine ultrasound to a non-ultrasound-assisted method. The primary endpoints are technical failure rate, first-attempt success rate, number of needle redirections and procedure time. We retrieve 32 trials (3439 patients) comparing pre-procedural lumbar ultrasounds to palpations for neuraxial procedures in various clinical settings. Pre-procedural ultrasounds decrease the overall risk of technical failure (Risk Ratio (RR) 0.69 (99% CI, 0.43 to 1.10), p = 0.04) but not in obese and difficult spinal patients (RR 0.53, p = 0.06) and increase the first-attempt success rate (RR 1.5 (99% CI, 1.22 to 1.86), p < 0.0001, NNT = 5). In difficult spines and obese patients, the RR is 1.84 (99% CI, 1.44 to 2.3; p < 0.0001, NNT = 3). The number of needle redirections is lower with pre-procedural ultrasounds (SMD = −0.55 (99% CI, −0.81 to −0.29), p < 0.0001), as is the case in difficult spines and obese patients (SMD = −0.85 (99% CI, −1.08 to −0.61), p < 0.0001). No differences are observed in procedural times. Ιn conclusion, a pre-procedural ultrasound provides significant benefit in terms of technical failure, number of needle redirections and first attempt-success rate. Τhe effect of pre-procedural ultrasound scanning of the lumbar spine is more significant in a subgroup analysis of difficult spines and obese patients.


2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Sameh M. Zamzam ◽  
Mosaad Abdel-Aziz ◽  
Ahmed Atef ◽  
Usama Abdel-Naseer ◽  
Mostafa Hamoda ◽  
...  

Abstract Background Randomized controlled trials (RCTs) are prospective comparative studies in which study groups are allocated randomly to intervention or serve as controls. RCT is the mainstay to achieve evidence in the literature in clinical research. A RCT is the main research design to study the effect of an intervention and the only way to confirm the value of a new treatment. Main body RCT also gives the way to generate meta-analyses and systematic reviews giving a stronger evidence for clinical practice. Evidence-based medicine (EBM) is crucial for safe, effective, and standardized patient care. Although there is an agreement on the importance of performing RCT, it can be challenging to do it efficiently including different aspects like study design, funding, randomization, blinding, follow-up, data analysis, statistics, generalization of results, and reporting of quality of the studies. Conclusion In this article, we gave a comprehensive review for RCT in otolaryngology discussing their importance, advantages, and drawbacks, types, steps, challenges, reporting their quality and their prevalence in the literature.


1997 ◽  
Vol 111 (7) ◽  
pp. 611-613 ◽  
Author(s):  
K. W. Ah-See ◽  
N. C. Molony ◽  
A. G. D. Maran

AbstractThere is a growth in the demand for clinical practice to be evidence based. Recent years have seen a rise in the number of randomized controlled clinical trials (RCTS). Such trials while acknowledged as the gold standard for evidence can be difficult to perform in surgical specialities. We have recently identified a low proportion of RCTS in the otolaryngology literature. Our aim was to identify any trend in the number of published RCTS within the ENT literature over a 30-year period and to identify which areas of our speciality lend themselves to this form of study design. A Medline search of 10 prominent journals published between 1966 and 1995 was performed. Two hundred and ninety-six RCTS were identified. Only five were published before 1980. Two hundred (71 per cent) of RCTS were in the areas of otology and rhinology. An encouraging trend is seen in RCTS within ENT literature.


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