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https://www.readbyqxmd.com/read/29166344/two-stage-prosthetic-breast-reconstruction-a-comparison-between-prepectoral-and-partial-subpectoral-techniques
#1
Maurice Y Nahabedian, Costanza Cocilovo
BACKGROUND: Prosthetic breast reconstruction with prepectoral placement may confer clinical advantages compared with subpectoral placement. The purpose of this study was to assess and compare clinical outcomes following 2-stage reconstruction following prepectoral and partial subpectoral placement of tissue expanders and implants. METHODS: A retrospective review of 39 (prepectoral) and 50 (partial subpectoral) patients was completed. Acellular dermal matrix was used in all patients...
December 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29166330/hepatic-falciform-artery-demonstrating-maa-uptake-in-the-anterior-abdomen-prior-to-embolization
#2
Dhruv Patel, Ken Le, Joga Chaganti, Robert Mansberg
A 58-year-old man was referred for selective internal radiation therapy for locally advanced unresectable hepatocellular carcinoma. Intra-arterial particle perfusion scintigraphy was performed with SPECT/CT following intra-arterial injection of Tc macroaggregated albumin. Angiography demonstrated a hepatic falciform artery, a feeding artery of the ligamentum teres, whereas scintigraphy demonstrated tracer uptake in the mid-anterior abdominal wall. The hepatic falciform artery was subsequently embolized and the repeat angiogram confirmed successful occlusion...
November 22, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29165915/development-and-implementation-of-a-radiation-therapy-incident-learning-system-compatible-with-local-workflow-and-a-national-taxonomy
#3
Logan Montgomery, Palma Fava, Carolyn R Freeman, Tarek Hijal, Ciro Maietta, William Parker, John Kildea
PURPOSE: Collaborative incident learning initiatives in radiation therapy promise to improve and standardize the quality of care provided by participating institutions. However, the software interfaces provided with such initiatives must accommodate all participants and thus are not optimized for the workflows of individual radiation therapy centers. This article describes the development and implementation of a radiation therapy incident learning system that is optimized for a clinical workflow and uses the taxonomy of the Canadian National System for Incident Reporting - Radiation Treatment (NSIR-RT)...
November 22, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29165813/radiation-therapy-in-retroperitoneal-sarcoma-management
#4
REVIEW
Rick L Haas, Elizabeth H Baldini, Peter W Chung, Frits van Coevorden, Thomas F DeLaney
Surgery is potentially curative for primary non-metastatic retroperitoneal soft tissue sarcomas (RPS), although patients remain at risk for local recurrence. To reduce this risk, the addition of radiotherapy to radical surgery may be considered. Nevertheless, level I evidence to support radiotherapy is currently lacking. The results from the EORTC-STBSG 62092-22092 studying this question are awaited. This manuscript addresses issues to consider when radiation-oncologists engage in a multidisciplinary treatment approach for RPS patients, including radiotherapy...
November 22, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29165794/leptomeningeal-metastasis-from-systemic-cancer-review-and-update-on-management
#5
REVIEW
Nancy Wang, Mia S Bertalan, Priscilla K Brastianos
Leptomeningeal metastasis is an uncommon and typically late complication of cancer with a poor prognosis and limited treatment options. Diagnosis is often challenging, with nonspecific presenting symptoms ranging from headache and confusion to focal neurologic deficits, such as cranial nerve palsies. Standard diagnostic evaluation involves a neurologic examination, magnetic resonance imaging of the brain and spine with gadolinium, and cytologic evaluation of the cerebral spinal fluid. Therapy entails a multimodal approach focused on palliation with surgery, radiation, and/or chemotherapy, which may be administered systemically or directly into the cerebral spinal fluid...
November 22, 2017: Cancer
https://www.readbyqxmd.com/read/29165692/prognostic-value-of-clinical-vs-pathologic-stage-in-rectal-cancer-patients-receiving-neoadjuvant-therapy
#6
Daniel Delitto, Thomas J George, Tyler J Loftus, Peihua Qiu, George J Chang, Carmen J Allegra, William A Hall, Steven J Hughes, Sanda A Tan, Christiana M Shaw, Atif Iqbal
Background: Neoadjuvant chemoradiation is currently standard of care in stage II-III rectal cancer, resulting in tumor downstaging for patients with treatment-responsive disease. However, the prognosis of the downstaged patient remains controversial. This work critically analyzes the relative contribution of pre- and post-therapy staging to the anticipated survival of downstaged patients. Methods: The National Cancer Database (NCDB) was queried for patients with rectal cancer treated with transabdominal resection between 2004 and 2014...
November 20, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29165619/comparison-of-response-of-passive-dosimetry-systems-in-scanning-proton-radiotherapy-a-study-using-paediatric-anthropomorphic-phantoms
#7
Ž Kneževic, I Ambrozova, C Domingo, M De Saint-Hubert, M Majer, I Martínez-Rovira, S Miljanic, N Mojzeszek, P Porwol, O Ploc, M Romero-Expósito, L Stolarczyk, S Trinkl, R M Harrison, P Olko
Proton beam therapy has advantages in comparison to conventional photon radiotherapy due to the physical properties of proton beams (e.g. sharp distal fall off, adjustable range and modulation). In proton therapy, there is the possibility of sparing healthy tissue close to the target volume. This is especially important when tumours are located next to critical organs and while treating cancer in paediatric patients. On the other hand, the interactions of protons with matter result in the production of secondary radiation, mostly neutrons and gamma radiation, which deposit their energy at a distance from the target...
November 18, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29165612/long-term-outcomes-of-107-cases-of-primary-thyroid-malt-lymphoma-at-a-single-medical-institution-in-japan
#8
Natsuko Watanabe, Hiroto Narimatsu, Jaeduk Yoshimura Noh, Kenji Iwaku, Yo Kunii, Nami Suzuki, Hidemi Ohye, Miho Suzuki, Masako Matsumoto, Ai Yoshihara, Kaori Kameyama, Kazuhiko Kobayashi, Masahiro Kami, Kiminori Sugino, Koichi Ito
Context: Thyroid mucosa-associated lymphoid tissue (MALT) lymphoma is a type of extranodal lymphoma with a favorable prognosis. Objective: To provide information on long-term outcomes that would facilitate establishment of the optimal management strategy for thyroid lymphoma. Design, Setting, and Participants: Medical records of 107 patients (median age 67 years, 20 males, 87 females) who were diagnosed with localized thyroid MALT lymphoma stage IE or IIE at Ito Hospital were retrospectively reviewed...
November 20, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29165417/-pterygium-etiology-pathogenesis-treatment
#9
S A Malozhen, S V Trufanov, D A Krakhmaleva
Pterygium is a degenerative condition characterized by fibrovascular outgrowth of conjunctiva over the cornea. Many theories exist that try to explain its pathogenesis. The current belief is that this disease is multifactorial with ultraviolet radiation being the most important trigger. Attention is also paid to such factors as tear film changes, cytokines and growth factors disbalance, immunologic disturbances, genetic mutations, and viral infections. Modern classifications consider the rate of fibrovascular growth, its progressive potential, and histological features...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/29165322/treatment-planning-with-intensity-modulated-particle-therapy-for-multiple-targets-in-stage-iv-non-small-cell-lung-cancer
#10
Kristjan Anderle, Joep Stroom, Sandra Vieira, Nuno Pimentel, Carlo Greco, Marco Durante, Christian Graeff
Intensity modulated particle therapy (IMPT) can produce highly conformal plans, but is limited in advanced lung cancer patients with multiple lesions due to motion and planning complexity. A 4D IMPT optimization including all motion states was expanded to include multiple targets, where each target (isocenter) is designated to specific field(s). Furthermore, to achieve stereotactic treatment planning objectives, target and OAR weights plus objective doses were automatically iteratively adapted. Finally, 4D doses were calculated for different motion scenarios...
November 22, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29165288/treatment-related-noncontiguous-radiologic-changes-in-children-with-diffuse-intrinsic-pontine-glioma-treated-with-expanded-irradiation-fields-and-antiangiogenic-therapy
#11
Zoltan Patay, Thomas E Merchant, Rosa Nguyen, Christopher R Pierson, Arzu Onar-Thomas, Alberto Broniscer
PURPOSE: We previously reported the cases of 3 children with diffuse intrinsic pontine glioma (DIPG) in whom noncontiguous treatment-related abnormalities (NCTRAs) developed in the brain after expanded-field radiation therapy (RT). To investigate the occurrence and putative mechanism of NCTRAs, we reviewed brain magnetic resonance imaging studies of patients with DIPG treated in 2 consecutive phase I clinical trials (trials 1 and 2). METHODS AND MATERIALS: The 55 children included in these trials received small-molecule inhibitors: vandetanib in trial 1 (n=32; mean age 6...
December 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29165285/hypofractionated-nodal-radiation-therapy-for-breast-cancer-was-not-associated-with-increased-patient-reported-arm-or-brachial-plexopathy-symptoms
#12
Nelson Leong, Pauline T Truong, Keith Tankel, Winkle Kwan, Lorna Weir, Ivo A Olivotto
PURPOSE: To determine whether nodal radiation therapy (RT) for breast cancer using modest hypofractionation (HF) with 2.25 to 2.5 Gy per fraction (fx) was associated with increased patient-reported arm symptoms, compared with conventional fractionation (CF) ≤2 Gy/fx. METHODS AND MATERIALS: Two cancer registries were used to identify subjects who received computed tomography-planned nodal RT for pT1-3, pN0-2, M0 breast cancer, from 2007 to 2010 at 2 cancer institutions...
December 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29165278/reports-on-the-death-of-whole-brain-radiation-therapy-are-greatly-exaggerated
#13
EDITORIAL
Jason Edwards, Marcus E Randall, Ronald C McGarry
No abstract text is available yet for this article.
December 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29165277/the-demise-of-whole-brain-radiation-therapy
#14
EDITORIAL
James J Urbanic
No abstract text is available yet for this article.
December 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29164929/psychosis-as-a-sequelae-of-paraneoplastic-syndrome-in-small-cell-lung-carcinoma-a-psycho-neuroendocrine-interface
#15
Christiana M Wilkins, Victoria L Johnson, Rachel E Fargason, Badari Birur
In 2013 more than 150,000 Americans died from all types of lung cancer. Small cell lung cancer (SCLC) represents about 13% of all lung cancers and is notoriously associated with paraneoplastic syndromes (PNS). Here we present an interesting case of psychosis associated with one such PNS-- ectopic Cushing syndrome of SCLC. A 56 year old African-American male with no prior psychiatric history who was diagnosed with SCLC two months prior, presented to the ER for treatment of a right arm laceration he sustained while fighting off attackers, with high concern these individuals may have been part of hallucinatory experiences and well-systematized persecutory delusions regarding his wife...
November 22, 2017: Clinical Schizophrenia & related Psychoses
https://www.readbyqxmd.com/read/29164620/repair-gene-mgmt-is-controlled-by-sp1-and-upregulated-by-glucocorticoids-but-not-by-temozolomide-and-radiation
#16
Dorthe Aasland, Thomas R Reich, Maja T Tomicic, Olivier J Switzeny, Bernd Kaina, Markus Christmann
Therapy of malignant glioma relies on treatment with the O(6) -methylating agent temozolomide (TMZ) concomitant with ionizing radiation followed by adjuvant TMZ. For the treatment of recurrences DNA chloroethylating drugs are also used. The main killing lesion induced by these drugs is O(6) -alkylguanine. Since this damage is repaired by O(6) -methylguanine-DNA methyltransferase (MGMT), the repair enzyme represents the most important factor of drug resistance, limiting the therapy of malignant high-grade gliomas...
November 22, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29164272/signaling-pathways-and-mesenchymal-transition-in-pediatric-high-grade-glioma
#17
REVIEW
Michaël H Meel, Sophie A Schaper, Gertjan J L Kaspers, Esther Hulleman
Pediatric high-grade gliomas (pHGG), including diffuse intrinsic pontine gliomas (DIPG), are the most lethal types of cancer in children. In recent years, it has become evident that these tumors are driven by epigenetic events, mainly mutations involving genes encoding Histone 3, setting them apart from their adult counterparts. These tumors are exceptionally resistant to chemotherapy and respond only temporarily to radiotherapy. Moreover, their delicate location and diffuse growth pattern make complete surgical resection impossible...
November 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29164269/-postoperative-radiation-therapy-for-prostate-cancer-still-no-genomic-risk-profiling-for-clinical-routine
#18
Tobias Finazzi, Frank Zimmermann
No abstract text is available yet for this article.
November 21, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29163898/self-quenched-ferrocenyl-diketopyrrolopyrrole-organic-nanoparticles-with-amplifying-photothermal-effect-for-cancer-therapy
#19
Pingping Liang, Qianyun Tang, Yu Cai, Gongyuan Liu, Weili Si, Jinjun Shao, Wei Huang, Qi Zhang, Xiaochen Dong
Organic nanoparticles (NPs) with near-infrared absorbance possess high photothermal conversion (PTC) efficiency and an excellent photoacoustic signal, presenting a great prospect for photoacoustic imaging (PAI)-guided photothermal therapy (PTT). Herein, a novel diketopyrrolopyrrole derivative (DPPCN-Fc) is synthesized for use as a PTT agent with PAI performance. Due to photo-induced electron transfer (PET), the two flanked ferrocene moieties significantly quench the radiative decay and intersystem crossing process, resulting in an enhanced nonradiative transition, and an amplifying photothermal effect is observed...
November 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29163854/interactions-between-tgf-%C3%AE-1-canonical-wnt-%C3%AE-catenin-pathway-and-ppar-%C3%AE-in-radiation-induced-fibrosis
#20
REVIEW
Alexandre Vallée, Yves Lecarpentier, Rémy Guillevin, Jean-Noël Vallée
Radiation therapy induces DNA damage and inflammation leading to fibrosis. Fibrosis can occur 4 to 12 months after radiation therapy. This process worsens with time and years. Radiation-induced fibrosis is characterized by fibroblasts proliferation, myofibroblast differentiation, and synthesis of collagen, proteoglycans and extracellular matrix. Myofibroblasts are non-muscle cells that can contract and relax. Myofibroblasts evolve towards irreversible retraction during fibrosis process. In this review, we discussed the interplays between transforming growth factor-β1 (TGF-β1), canonical WNT/β-catenin pathway and peroxisome proliferator-activated receptor gamma (PPAR γ) in regulating the molecular mechanisms underlying the radiation-induced fibrosis, and the potential role of PPAR γ agonists...
October 27, 2017: Oncotarget
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