Is IMRT Superior or Inferior to 3DCRT in Radiotherapy for NSCLC? A Meta-Analysis
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Abstract:
Introduction There are no adequate data to determine whether intensity-modulated radiotherapy (IMRT) is superior to three-dimensional conformal radiotherapy (3DCRT) in the treatment of non-small cell lung cancer (NSCLC). This meta-analysis was conducted to compare the clinical outcomes of IMRT and 3DCRT in the treatment of NSCLC. Methods No exclusions were made based on types of study design. We performed a literature search in PubMed, EMBASE and the Cochrane library databases from their inceptions to April 30, 2015. The overall survival (OS) and relative risk (RR) of radiation pneumonitis and radiation oesophagitis were evaluated. Two authors independently assessed the methodological quality and extracted data. Publication bias was evaluated by funnel plot using Egger's test results. Results From the literature search, 10 retrospective studies were collected, and of those, 5 (12,896 patients) were selected for OS analysis, 4 (981 patients) were selected for radiation pneumonitis analysis, and 4 (1339 patients) were selected for radiation oesophagitis analysis. Cox multivariate proportional hazards models revealed that 3DCRT and IMRT had similar OS (HR = 0.96, P = 0.477) but that IMRT reduced the incidence of grade 2 radiation pneumonitis (RR = 0.74, P = 0.009) and increased the incidence of grade 3 radiation oesophagitis (RR = 2.47, P = 0.000). Conclusions OS of IMRT for NSCLC is not inferior to that of 3DCRT, but IMRT significantly reduces the risk of radiation pneumonitis and increases the risk of radiation oesophagitis compared to 3DCRT.Cite
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Seperti pada dewasa, teknik regional anestesi pada pediatrik kini makin popular digunakan oleh ahli anestesikarena keuntungannya. Namun demikian selalu ada risiko dan kemungkinan timbulnya komplikasi dari setiap tindakan yang dilakukan, termasuk tindakan anestesi regional pada pediatrik. Insidensi komplikasi anestesi regional pada pediatrik tidak banyak, dan kalaupun terjadi komplikasi adalah minor. Komplikasi bisa diakibatkan dari identifikasi ruang saraf, alat, obat, teknis tindakan anestesi regionalnya dan komplikasi lainnya.Walaupun tidak banyak kejadian komplikasi regional anestesi yang dilaporkan pada pediatrik, dan bukanlah komplikasi yang fatal, teknik regional anestesi pada pediatrik harus dilakukan dengan lebih hatihati, pertimbangan risiko dan keuntungannya untuk menghindari terjadinya komplikasi, terlebih karena kebanyakan komplikasi dapat dihindari dengan mempelajari teknik yang benar, menggunakan peralatan yang sesuai, dan sangat menerapkan prinsip keamanan pada pasien dengan baik.
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Genentech is partnering with the German cancer company Affimed to develop immunotherapies for multiple kinds of solid and blood cancers. Affimed is developing therapies that engage natural killer cells of the innate immune system to help direct them to attack cancer cells. Genentech will pay Affimed $96 million up front and up to $5 billion more in potential payments.
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The nationally-recognized Susquehanna
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