The AE and comorbidity classification systems used in our study are the same as in the initial studies designed to measure SC effectiveness. 1, 13, 17 Our SC implementation strategies and the SC itself differ from those published previously, which could also help explain the different results obtained.
If we agree that evidence-based medicine seeks to apply judgments about the quality of evidence, the evidence that derives from confirmation trials should be properly judged too, as in the initial studies – otherwise we may gamble the real evidence, with a potential setback in the quality of care.
A second, larger pilot was recommended by the funding agency (NIMH) as the initial study was considered a demonstration of feasibility and they wanted to see positive results in a larger pilot trial prior to funding a large-scale clinical trial.
The case of Avastin, in which subsequent studies did not show the same level of effect as the initial study, is one of only a few in which an approval has been revoked and the first one in which the manufacturer had requested a hearing to appeal the proposed revocation.
Because CT is more widely available and used, we suggest it as the initial study when determining resectability.
In many institutions, CE-CTA is employed as the initial study of choice for investigation for vascular disease, particularly given the now widespread availability of multislice technology.
Hence, VCE as the initial study, followed-by DBE, appears to be the best strategy for overt OGIB.
The non-invasive CDU is commonly used nowadays as the initial study for the diagnosis of TRAS because it is widely available, it does not require radioactive tracers and it has good sensitivity (87 94%) and specificity (86 100%) [ 12].
However, as the initial study of the salm mutant IFMs was performed by microarray analysis which provided limited coverage of the various gene isoforms 7, it remained unclear to what extent alternative splicing contributes to the muscle fiber-type switch.
