ESFTEwing Sarcoma Family of Tumors
ESFTExponential Sum Fitting of Transmission
ESFTExtended Sensory Functional Theory
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Caption: Figure 2: Inclusion of patients with diagnosis of ESFT treated in our hospital, aged 16 years and older, and treated with VIA/VIP.
OS-curves for (a) patients with synchronous metastatic disease, (b) patients with primary ESFT without metastases, and (c) all patients (n = 64).
The Ewing sarcoma family of tumors (ESFTs) formerly consisted of classical Ewing sarcoma (ES), Askin tumor, and primitive neuroectodermal tumor (PNET) [1] but is now referred to as Ewing sarcoma (ES).
This is a critical time to focus on ESFT for a number of reasons.
In the interest of advancing the study of ESFT, an evidence-based approach was used to perform a SLR, which has the potential to create and build a body of knowledge in a specific area to inform both research and practice (Tranfield et al.
Descriptive characteristics such as publication year and author characteristics were first analyzed to see how ESFT research has evolved over the last three decades.
The geographic scope of ESFT research has also evolved, in terms both of author affiliation and of geographic span of focus or data collection.
Analysis of Theoretical Foundations and Methodological Approaches Used in ESFT Research
Analysis of the theoretical foundations and methodological approaches used in ESFT research shows a stream of literature that is still developing, and is largely conceptual and atheoretical.
Further analysis of theoretical foundations of ESFT research by authors' regional affiliation shows that research from NA authors is much more atheoretical (94.1%) than that from other regions, with only two papers using theory building (Ellram and Golicic 2015) or established theories (Ellram and Golicic 2015; Schniederjans and Starkey 2014) (see fig.
Additionally, some respondents commented that patients with cutaneous and superficial ESFT could be monitored clinically without primary site imaging.
Although not specifically addressed in this survey (but reflected in COG guidelines [8]), the case for routine surveillance using CT chest in ESFT is less compelling.