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https://www.readbyqxmd.com/read/28770920/injectable-thermosensitive-magnetic-nanoemulsion-hydrogel-for-multimodal-imaging-guided-accurate-thermoablative-cancer-therapy
#1
Haoan Wu, Lina Song, Ling Chen, Yixin Huang, Yang Wu, Fengchao Zang, Yanli An, Hanbai Lyu, Ming Ma, Jun Chen, Ning Gu, Yu Zhang
Ferrofluid-based magnetic hyperthermia of cancers has gained significant attention in recent years due to its excellent efficacy, few deleterious side effects and unlimited tissue penetration capacity. However, the high tumor osmotic pressure causes injection leakage and thus position imprecision because of the fluidity of the ferrofluid and the absence of multimodal imaging guidance, which create tremendous challenges for clinical application. Here, a body temperature-induced gelation strategy is constructed for accurate localized magnetic tumor regression based on the unique behaviors of a magnetic nanoemulsion hydrogel (MNH) within tumors...
August 3, 2017: Nanoscale
https://www.readbyqxmd.com/read/28767808/preliminary-results-of-severe-venous-insufficiency-treatment-with-thermal-ablation-of-the-great-saphenous-vein-by-endovascular-technique-with-laser-diode-980nm-developed-in-brazil-associated-with-sclerotherapy-with-polidocanol
#2
Matheus Bertanha, Marcone Lima Sobreira, Paula Angelelli Bueno Camargo, Rafael Elias Farres Pimenta, Jamil Victor Oliveira Mariúba, Regina Moura, Vanderlei Salvador Bagnato, Winston Bonetti Yoshida
The endovenous laser ablation (EVLA) of the insufficient saphenous vein has similar results to open conventional surgery, but less morbidity. The echo-guided polidocanol foam sclerotherapy technique has been used for the same purpose. The combined techniques may play a role for more severe diseases, such as those with varicose ulcers. An EVLA device (called VELAS) has been developed in the Optics and Photonics Research Center of USP-São Carlos in agreement with FMB-UNESP. In this study, we present the preliminary results of the VELAS device (MMO 980nm diode) in patients with chronic venous ulcer, associated with echo-guided polidocanol foam sclerotherapy for the treatment of varicosities...
May 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28723490/renal-preservation-and-partial-nephrectomy-patient-and-surgical-factors
#3
REVIEW
Lorenzo Marconi, Mihir M Desai, Vincenzo Ficarra, Francesco Porpiglia, Hendrik Van Poppel
CONTEXT: Optimization of the partial nephrectomy (PN) procedure in terms of preservation of functional outcomes is of special importance. OBJECTIVE: To review the most important patient and surgical factors that may influence the three elements that ultimately define the preservation of renal function (RF) after PN: preoperative RF, quantity of parenchyma preserved, and nephron recovery from ischemic insult. EVIDENCE ACQUISITION: A nonsystematic review of the literature was conducted...
December 15, 2016: European Urology Focus
https://www.readbyqxmd.com/read/28682963/multimodal-therapy-of-squamous-cell-carcinoma-of-the-anus-with-distant-metastasis-a-single-institution-experience
#4
Ludovic Evesque, Karen Benezery, Philippe Follana, Alexander Tuan Falk, Jerome Doyen, Juliette Reure, Gerard Cavaglione, Eric François
BACKGROUND: Because of the rarity of the condition, studies concerning the management of patients with squamous cell carcinoma of the anus with distant metastasis are scarce. The available studies indicate poor outcomes with exclusive chemotherapy. OBJECTIVE: Our aim was to evaluate the impact of multidisciplinary treatment on overall survival among patients presenting with metastatic squamous cell carcinoma of the anus. DESIGN: This was a retrospective study...
August 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28644697/contemporary-treatment-of-renal-tumors-a-questionnaire-survey-in-the-nordic-countries-the-norenca-i-study
#5
Harry Nisen, Petrus Järvinen, Magnus Fovaeus, Eirikur Guðmundsson, Bjarne Kromann-Andersen, Börje Ljungberg, Lars Lund, Frode Nilsen, Pernilla Sundqvist, Christian Beisland
OBJECTIVE: The five Nordic countries comprise 25 million people, and have similar treatment traditions and healthcare systems. To take advantage of these similarities, a collaborative group (Nordic Renal Cancer Group, NORENCA) was founded in 2015. MATERIALS AND METHODS: A questionnaire of 17 questions on renal tumor management and surgical education was designed and sent to 91 institutions performing renal tumor surgery in 2015. The response rate was 68% (62 hospitals), including 28 academic, 25 central and nine district hospitals...
June 23, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28625045/size-dependent-heating-of-magnetic-iron-oxide-nanoparticles
#6
Sheng Tong, Christopher A Quinto, Linlin Zhang, Priya Mohindra, Gang Bao
The ability to generate heat under an alternating magnetic field (AMF) makes magnetic iron oxide nanoparticles (MIONs) an ideal heat source for biomedical applications including cancer thermoablative therapy, tissue preservation, and remote control of cell function. However, there is a lack of quantitative understanding of the mechanisms governing heat generation of MIONs, and the optimal nanoparticle size for magnetic fluid heating (MFH) applications. Here, we show that MIONs with large sizes (>20 nm) have a specific absorption rate (SAR) significantly higher than that predicted by the widely used linear theory of MFH...
July 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28596262/optimal-surveillance-strategies-after-surgery-for-renal-cell-carcinoma
#7
REVIEW
Mark D Tyson, Sam S Chang
One in 5 patients who undergo surgical resection for clinically localized renal cell carcinoma (RCC) develop local and/or distant recurrences which, when detected early, may be amenable to salvage local and systemic therapies. When considering that approximately half of these recurrences will occur during the first 2 years, a clear rationale exists for optimizing surveillance strategies after surgery. Although there is a notable dearth of high-quality data on this subject, clinical principles can guide clinicians as they attempt to balance the burden of surveillance strategies with potential clinical benefit...
June 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/28537410/-liver-hemangiomas-when-is-invasive-treatment-indicated
#8
V Třeška, T Skalický, V Liška, J Fichtl, J Brůha, M Skála, J Šebek, P Duras
INTRODUCTION: Liver hemangiomas are the most common benign tumors of the liver. Most are asymptomatic and are found accidentally by ultrasonography, computed tomography or magnetic resonance imaging of the abdomen. Liver hemangiomas usually do not need any treatment. Nevertheless, symptomatic, giant hemangiomas can be indicated for surgery, embolization or thermoablation. The aim of this study was to define based on our own experience and on the literature when and what treatment option should be indicated in patients suffering from liver hemangioma...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28523400/long-term-effect-of-thermoablative-fractional-co2-laser-treatment-as-a-novel-approach-to-urinary-incontinence-management-in-women-with-genitourinary-syndrome-of-menopause
#9
Pablo González Isaza, Kinga Jaguszewska, Jose Luis Cardona, Mariusz Lukaszuk
INTRODUCTION AND HYPOTHESIS: The aim of this study was to evaluate the long-term effect of thermoablative fractional CO2 laser (TACO2L) as an alternative treatment for early stages of stress urinary incontinence (SUI) in postmenopausal women with genitourinary syndrome of menopause. METHODS: A total of 161 postmenopausal patients (age 53.38 ± 5.1 years, range 45-65 years) with a clinical diagnosis of mild SUI were prospectively enrolled in the study. Patients received one treatment with TACO2L every 30-45 days, each treatment comprising four sessions, followed in all patients by a yearly treatment session at 12, 24 and 36 months...
May 18, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28383273/near-infrared-light-responsive-folate-targeted-gold-nanorods-for-combined-photothermal-chemotherapy-of-osteosarcoma
#10
Anna Li Volsi, Cinzia Scialabba, Valeria Vetri, Gennara Cavallaro, Mariano Licciardi, Gaetano Giammona
Folate-targeted gold nanorods (GNRs) are proposed as selective theranostic agents for osteosarcoma treatment. An amphiphilic polysaccharide based graft-copolymer (INU-LA-PEG-FA) and an amino derivative of the α,β-poly(N-2-hydroxyethyl)-d,l-aspartamide functionalized with folic acid (PHEA-EDA-FA), have been synthesized to act as coating agents for GNRs. The obtained polymer-coated GNRs were characterized in terms of size, shape, zeta potential, chemical composition, and aqueous stability. They protected the anticancer drug nutlin-3 and were able to deliver it efficiently in different physiological media...
April 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28348961/preoperative-visual-field-deficits-in-temporal-lobe-epilepsy
#11
Sanjeet S Grewal, William O Tatum, Paul W Brazis, Jerry J Shih, Robert E Wharen
Surgical resection and laser thermoablation have been used to treat medically refractory epilepsy with good results. However, they are not without risk. One of the most commonly reported complications of temporal lobe surgery is contralateral superior homonymous quadrantanopsia. We describe a patient with quadrantanopsia discovered as part of our recently modified protocol to workup patients prior to epilepsy surgery. This field cut was subtle and not detected on routine neurological examination. While we understand that this is a single case, we advocate for more judicious preoperative visual field examinations to truly characterize the incidence of postoperative visual field lesions...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28348940/minimally-invasive-robotic-laser-corpus-callosotomy-a-proof-of-concept
#12
Harminder Singh, Walid I Essayed, Sayantan Deb, Caitlin Hoffman, Theodore H Schwartz
INTRODUCTION: We describe the feasibility of using minimally invasive robotic laser interstitial thermotherapy (LITT) for achieving an anterior two-thirds as well as a complete corpus callosotomy. METHODS: Ten probe trajectories were plotted on normal magentic resonance imaging (MRI) scans using the Brainlab Stereotactic Planning Software (Brainlab, Munich, Germany). The NeuroBlate® System (Monteris Medical, MN, USA) was used to conform the thermal burn to the corpus callosum along the trajectory of the probe...
February 10, 2017: Curēus
https://www.readbyqxmd.com/read/28236104/uterine-fibroid-therapy-using-interventional-radiology-mini-invasive-treatments-current-perspective
#13
REVIEW
Carlo Masciocchi, Francesco Arrigoni, Fabiana Ferrari, Aldo Victor Giordano, Sonia Iafrate, Ilaria Capretti, Ester Cannizzaro, Alfonso Reginelli, Anna Maria Ierardi, Chiara Floridi, Alessio Salvatore Angileri, Luca Brunese, Antonio Barile
Uterine fibroids are common benign tumors of unclear etiopathology that affect the female reproductive tract. They are responsible for considerable morbidity and deterioration of life quality, and may have a negative impact on the reproductive system as well. Besides surgery aided by uterus-saving techniques, several minimally invasive procedures are now available within the field of interventional radiology that represent a valid solution for women who desire pregnancy and relief from disease-specific symptomatology...
April 2017: Medical Oncology
https://www.readbyqxmd.com/read/28216972/laparoscopic-resection-vs-laparoscopic-radiofrequency-ablation-for-the-treatment-of-small-hepatocellular-carcinomas-a-single-center-analysis
#14
COMPARATIVE STUDY
Marco Casaccia, Gregorio Santori, Giuliano Bottino, Pietro Diviacco, Enzo Andorno
AIM: To compare survival and recurrence after laparoscopic liver resection (LLR) and laparoscopic radiofrequency ablation (LRFA) for the treatment of small hepatocellular carcinoma (HCC). METHODS: Between June 1, 2005 and November 30, 2010, 46 patients (62.26 ± 8.55 years old; female/male: 12/34) treated for small HCC were enrolled following strict criteria. Patients with better liver function and larger tumors were referred for LLR (n = 24), while those with poorer liver function and multiple tumors were referred for LRFA (n = 22), and they were then followed for similar durations (44...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28163939/isolated-liver-metastasis-in-h%C3%A3-rthle-cell-thyroid-cancer-treated-with-microwave-ablation
#15
Konstantinos Segkos, Carl Schmidt, Fadi Nabhan
Hürthle cell thyroid cancer (HCTC) is a less common form of differentiated thyroid cancer. It rarely metastasizes to the liver, and when it does, the metastasis is almost never isolated. Here we report a 62-year-old male with widely invasive Hürthle cell thyroid cancer, who underwent total thyroidectomy and received adjuvant treatment with I-131 with posttreatment scan showing no evidence of metastatic disease. His thyroglobulin however continued to rise after that and eventually an isolated liver metastasis was identified...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28151029/radiofrequency-induced-thermotherapy-rfitt-in-a-porcine-liver-model-and-ex-vivo-great-saphenous-vein
#16
George E Badham, Scott J Dos Santos, Mark S Whiteley
AIMS: To investigate the thermal spread achieved in porcine liver when using an optimised radiofrequency ablation protocol and correlate findings with the effects seen in ex vivo great saphenous vein (GSV), in order to justify clinical use with the new treatment protocol. MATERIAL AND METHODS: Porcine liver and GSV sections were treated with radiofrequency-induced thermotherapy (RFiTT) using the following settings: 20 W at 1 s/cm (linear endovenous energy density; LEED 20 J/cm), 18 W at 1 s/cm (LEED 18 J/cm), 18 W at 3 s/cm (LEED 54 J/cm), 6 W interrupted pull-back 6 s stationary every 0...
August 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28112908/enhanced-photothermal-bactericidal-activity-of-the-reduced-graphene-oxide-modified-by-cationic-water-soluble-conjugated-polymer
#17
Linhong Xiao, Jinhua Sun, Libing Liu, Rong Hu, Huan Lu, Chungui Cheng, Yong Huang, Shu Wang, Jianxin Geng
Surface modification of graphene is extremely important for applications. Here, we report a grafting-through method for grafting water-soluble polythiophenes onto reduced graphene oxide (RGO) sheets. As a result of tailoring of the side chains of the polythiophenes, the modified RGO sheets, that is, RGO-g-P3TOPA and RGO-g-P3TOPS, are positively and negatively charged, respectively. The grafted water-soluble polythiophenes provide the modified RGO sheets with good dispersibility in water and high photothermal conversion efficiencies (ca...
February 3, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28007329/feasibility-of-real-time-intraprocedural-temperature-control-during-bone-metastasis-thermal-microwave-ablation-a-bicentric-retrospective-study
#18
Adrian Kastler, Alexandre Krainik, Linda Sakhri, Mireille Mousseau, Bruno Kastler
PURPOSE: To evaluate feasibility of using a thermocouple for temperature monitoring during microwave (MW) ablation of metastatic bone disease. MATERIALS AND METHODS: This retrospective study comprised 16 patients (8 men with mean age 63 y and 8 women with mean age 59 y) with 18 bone metastases treated with MW ablation using a thermocouple between March 2012 and October 2015. The mean maximum tumor size was 29.5 mm. MW ablation power was set between 15 W and 40 W and applied for 1-6 minutes...
March 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27989228/-thermoablation-therapy-in-the-treatment-of-benign-lesions
#19
Pál Ákos Deák, Dávid Ádám Korda, Attila Doros
INTRODUCTION: Depending on their size and location, some benign tumors can cause prolonged discomfort and even rupture and fatal bleeding in severe cases. Hitherto the therapeutic strategies for such lesions were observation, surgery and in selected cases transarterial embolization. AIM: Our aim was to present the possibilities of thermoablation for treating lesions. METHOD: Here we present interventions of four patients in Semmelweis University Department of Transplantation and Surgery...
December 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27978871/-interventional-bronchoscopies-for-the-treatment-of-112-cases-with-complex-malignant-central-airway-diseases-involved-in-bifurcation
#20
Hongwu Wang, Nan Zhang, Dongmei Li, Meimei Tao, Jieli Zhang, Hang Zou, Yunzhi Zhou, Sujuan Liang, Xiuyun Bai
BACKGROUND: It is very difficult to deal with the comprehensive central airway diseases, especially the malignant airway obstruction. The aim of this study is to explore the clinical effects of multiple interventional bronchoscopies for the treatment of 112 cases with comprehensive malignant central airway diseases so as to evaluate the clinical applications of thermoablation and cryosurgery. METHODS: The 112 cases with malignant airway diseases retrospectively reviewed for bronchoscopic interventions performed in more than two lesions of carina and/or bifurcation...
December 20, 2016: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
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