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Focal therapy for prostate cancer

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https://www.readbyqxmd.com/read/28540788/salvage-focal-cryosurgery-may-delay-use-of-androgen-deprivation-therapy-in-cryotherapy-and-radiation-recurrent-prostate-cancer-patients
#1
Michael Kongnyuy, Courtney J Berg, Kaitlin E Kosinski, David J Habibian, Jeffrey T Schiff, Anthony T Corcoran, Aaron E Katz
INTRODUCTION: Salvage treatment options for recurrent unilateral prostate cancer (PCa) after primary radiation are limited and associated with severe complications and poor quality of life measures. Salvage focal cryotherapy (SFC) has shown success in biochemical recurrence (BCR) free survival. We aim to determine if SFC can delay use of androgen deprivation therapy (ADT) in recurrent PCa with low morbidity. METHODS: A retrospective review of patients who underwent SFC at our institution from 2007 to 2015 was performed...
March 29, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28478960/use-of-reduced-field-of-view-acquisition-to-improve-prostate-cancer-visualization-on-diffusion-weighted-magnetic-resonance-imaging-in-the-presence-of-hip-implants-report-of-2-cases
#2
Andrew B Rosenkrantz, Samir S Taneja
In patients with metallic hip implants, distortions, and other artifacts relating to the echo-planar imaging acquisition may render prostate diffusion-weighted imaging (DWI) nondiagnostic. Reduced field-of-view (rFOV) acquisition, using parallel transmission and focused excitation, is a novel DWI approach that reduces distortions and improves images quality. This article presents images from both standard and rFOV DWI acquisitions in 2 prostate cancer patients with hip implants, showing the effect of rFOV DWI for improving tumor localization...
March 18, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28477079/-irreversible-electroporation-ire-a%C3%A2-minimally-invasive-therapeutic-option-in-prostate-cancer
#3
REVIEW
P Wiggermann, K Brünn, W Bäumler
CLINICAL PROBLEM: Prostate cancer is one of the most common malignant diseases in older men. As such, screening and early detection are of crucial importance. STANDARD TREATMENT: The standard management of prostate cancer includes radical prostatectomy, radiation therapy, or hormonal therapy. These standard therapies yield excellent oncologic results, but also produce significant side effects. In cases of low-risk prostate cancer, these therapies might result in over-treatment; for this reason, active surveillance has been introduced...
May 5, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28462605/editorial-comment-on-end-2016-0830-or-r1
#4
Joseph L Chin
"Focal therapy/Partial Ablation" for prostate cancer now garners significant attention and controversy. Critics and skeptics point to the known multifocality nature of prostate cancer, countered by proponents of focal therapy with the "dominant index lesion versus secondary lesions" theory. Tay et al. used the C.O.L.D. Registry to retrospectively assess oncologic and functional outcomes of partial cryoablation, comparing with a propensity score-matched group who had whole gland ablation. It should be emphasized that the authors selected for partial ablation only patients with low volume, intermediate risk disease...
May 2, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28443145/initial-single-centre-canadian-experience-with-18f-fluoromethylcholine-positron-emission-tomography-computed-tomography-18f-fch-pet-ct-for-biochemical-recurrence-in-prostate-cancer-patients-initially-treated-with-curative-intent
#5
Simon Gauvin, Yannick Cerantola, Eléonore Haberer, Vincent Pelsser, Stephan Probst, Franck Bladou, Maurice Anidjar
INTRODUCTION: We sought to determine predictive factors (patient and prostate-specific antigen [PSA] characteristics) for 18F-fluoromethylcholine positron emission tomography-computed tomography (18F-FCH PET/CT) positivity in the context of biochemical recurrence after local treatment of prostate cancer (PCa) with curative intent. METHODS: This is a retrospective study including 60 18F-FCH PET/CT scans of patients with biochemical recurrence after initial radical prostatectomy (RP), external beam radiation therapy (EBRT), or focal high-intensity focused ultrasound (HIFU) with curative intent...
January 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28439616/-high-intensity-focused-ultrasound-hifu-importance-in-the-treatment-of-prostate-cancer
#6
R Ganzer
BACKGROUND: High intensity focused ultrasound (HIFU) has been used since the beginning of the 1990s as an alternative treatment for prostate cancer. OBJECTIVE: Overview of the current status and critical review of the different indications for HIFU in the treatment of prostate cancer. MATERIAL AND METHODS: Review of the current literature on the indications, side effects, oncologic results and current guideline recommendations. RESULTS: The principle of HIFU is based on high energy sound waves, which lead to coagulation necrosis at the focal point...
April 24, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28430624/photosensitizers-in-prostate-cancer-therapy
#7
REVIEW
Taher Gheewala, Troy Skwor, Gnanasekar Munirathinam
The search for new therapeutics for the treatment of prostate cancer is ongoing with a focus on the balance between the harms and benefits of treatment. New therapies are being constantly developed to offer treatments similar to radical therapies, with limited side effects. Photodynamic therapy (PDT) is a promising strategy in delivering focal treatment in primary as well as post radiotherapy prostate cancer. PDT involves activation of a photosensitizer (PS) by appropriate wavelength of light, generating transient levels of reactive oxygen species (ROS)...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417160/diagnosis-of-recurrent-prostate-cancer-with-pet-ct-imaging-using-the-gastrin-releasing-peptide-receptor-antagonist-68-ga-rm2-preliminary-results-in-patients-with-negative-or-inconclusive-18-f-fluoroethylcholine-pet-ct
#8
Gesche Wieser, Ilinca Popp, H Christian Rischke, Vanessa Drendel, Anca-Ligia Grosu, Mark Bartholomä, Wolfgang A Weber, Rosalba Mansi, Ulrich Wetterauer, Wolfgang Schultze-Seemann, Philipp T Meyer, Cordula Annette Jilg
PURPOSE/BACKGROUND: [(18)F]fluoroethylcholine ((18)FECH) has been shown to be a valuable PET-tracer in recurrent prostate cancer (PCa), but still has limited accuracy. RM2 is a gastrin-releasing peptide receptor (GRPr) antagonist that binds to GRPr on PCa cells. Recent studies suggest that GRPr imaging with PET/CT is a promising technique for staging and restaging of PCa. We explore the value of GRPr-PET using the (68)Ga-labeled GRPr antagonist RM2 in a selected population of patients with biochemically recurrent PCa and a negative/inconclusive (18)FECH-PET/CT...
April 18, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28409355/percutaneous-mr-guided-focal-cryoablation-for-recurrent-prostate-cancer-following-radiation-therapy-retrospective-analysis-of-iceball-margins-and-outcomes
#9
Christiaan G Overduin, Sjoerd F M Jenniskens, J P Michiel Sedelaar, Joyce G R Bomers, Jurgen J Fütterer
OBJECTIVES: To evaluate iceball margins after magnetic resonance (MR)-guided focal salvage prostate cryoablation and determine the correlation with local outcome. METHODS: A retrospective review was performed on 47 patients that underwent percutaneous MR-guided focal cryoablation for biopsy-proven locally recurrent prostate cancer after primary radiotherapy. Preprocedural diagnostic and intraprocedural MR images were analysed to derive three-directional iceball margins...
April 13, 2017: European Radiology
https://www.readbyqxmd.com/read/28384707/shape-based-reconstruction-for-transrectal-diffuse-optical-tomography-monitoring-of-photothermal-focal-therapy-of-prostate-cancer-simulation-studies
#10
Robert A Weersink, Sahil Chaudhary, Kenwrick Mayo, Jie He, Brian C Wilson
No abstract text is available yet for this article.
April 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28355119/high-intensity-focused-ultrasound-for-the-treatment-of-prostate-cancer-a-review
#11
Christian G Chaussy, Stefan Thüroff
Over the past 25 years, the average life expectancy for men has increased almost 4 years, and the age of prostate cancer detection has decreased an average of 10 years with diagnosis increasingly made at early-stage disease where curative therapy is possible. These changing trends in the age and extent of malignancy at diagnosis have revealed limitations in conventional curative therapies for prostate cancer, including a significant risk of aggressive cancer recurrence, and the risk of long-term genitourinary morbidity and its detrimental impact on patient's quality of life (QOL)...
April 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28349978/patient-selection-for-prostate-focal-therapy-in-the-era-of-active-surveillance-an-international-delphi-consensus-project
#12
K J Tay, M J Scheltema, H U Ahmed, E Barret, J A Coleman, J Dominguez-Escrig, S Ghai, J Huang, J S Jones, L H Klotz, C N Robertson, R Sanchez-Salas, S Scionti, A Sivaraman, J de la Rosette, T J Polascik
BACKGROUND: Whole-gland extirpation or irradiation is considered the gold standard for curative oncological treatment for localized prostate cancer, but is often associated with sexual and urinary impairment that adversely affects quality of life. This has led to increased interest in developing therapies with effective cancer control but less morbidity. We aimed to provide details of physician consensus on patient selection for prostate focal therapy (FT) in the era of contemporary prostate cancer management...
March 28, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28318726/low-risk-prostate-cancer-identification-management-and-outcomes
#13
REVIEW
Marco Moschini, Peter R Carroll, Scott E Eggener, Jonathan I Epstein, Markus Graefen, Rodolfo Montironi, Christopher Parker
CONTEXT: The incidence of low-risk prostate cancer (PCa) has increased as a consequence of prostate-specific antigen testing. OBJECTIVE: In this collaborative review article, we examine recent literature regarding low-risk PCa and the available prognostic and therapeutic options. EVIDENCE ACQUISITION: We performed a literature review of the Medline, Embase, and Web of Science databases. The search strategy included the terms: prostate cancer, low risk, active surveillance, focal therapy, radical prostatectomy, watchful waiting, biomarker, magnetic resonance imaging, alone or in combination...
March 15, 2017: European Urology
https://www.readbyqxmd.com/read/28274241/salvage-prostate-re-irradiation-using-high-dose-rate-brachytherapy-or-focal-stereotactic-body-radiotherapy-for-local-recurrence-after-definitive-radiation-therapy
#14
Aurélie Mbeutcha, Laurent Chauveinc, Pierre-Yves Bondiau, Marie-Eve Chand, Matthieu Durand, Daniel Chevallier, Jean Amiel, Daniel Lam Cham Kee, Jean-Michel Hannoun-Lévi
BACKGROUND: Optimal management of locally recurrent prostate cancer after definitive radiation therapy is still challenging. With the development of highly accurate radiotherapy devices, prostate salvage re-irradiation might generate lower toxicity rates than classical salvage therapies. We retrospectively evaluated the toxicity and the feasibility of a prostate re-irradiation after definitive radiation therapy failure. Two modalities were investigated: high-dose-rate brachytherapy (HDRB) on whole prostate gland and focal stereotactic radiotherapy (SBRT) using CyberKnife® linac...
March 9, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28258616/focal-salvage-high-intensity-focused-ultrasound-in-radiorecurrent-prostate-cancer
#15
Abi Kanthabalan, Max Peters, Marco Van Vulpen, Neil McCartan, Richard Graham Hindley, Amr Emara, Caroline M Moore, Manit Arya, Mark Emberton, Hashim Uddin Ahmed
OBJECTIVE: To assess short- to medium-term cancer control rates and side effects of focal salvage high- intensity focused ultrasound (HIFU). MATERIALS AND METHODS: A retrospective registry analysis identified 150 men who underwent focal salvage HIFU (FS-HIFU) (Sonablate 500) between November 2006 and August 2015. Metastatic disease was excluded by nodal assessment on the pelvic MRI, a radioisotope bone scan and positron-emission tomography (PET) imaging (choline-18F-fluorodeoxyglucose PET or choline PET-CT)...
March 4, 2017: BJU International
https://www.readbyqxmd.com/read/28247740/-focal-laser-thermocoagulation-for-localized-prostate-cancer
#16
P V Glybochko, A Z Vinarov, E V Shpot, N I Sorokin, A M Dymov, D V Chinenov, D V Enikeev, E A Shmeleva, A V Koshkarev, I S Lumpov
Focal therapy involving destruction of prostate specific region containing a clinically meaningful tumor is a new treatment for prostate cancer. Despite the absence of long-term results of applying this method of treatment, there are prerequisites that allow to consider focal therapy as a method with a lower risk of side effects typical of conventional treatment. Focal laser thermocoagulation is a developing technique with a number of advantages, the most important of which is the ability to perform the treatment under the real-time magnetic resonance imaging control...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28243479/robotic-assisted-laparoscopic-prostatectomy-after-high-intensity-focused-ultrasound-failure
#17
Leon Telis, Seyed Behzad Jazayeri, David B Samadi
Background. Prostate cancer is the most common cancer diagnosed in men. As new focal therapies become more popular in treatment of prostate cancer, failure cases requiring salvage therapy with either surgical or other techniques are being reported. Objective. To report the options in treatment of prostate cancer after recurrence or failure of the primary treatment modality. Methods. We report a salvage robotic assisted laparoscopic radical prostatectomy (RALP) for prostate cancer recurrence following high intensity focused ultrasound treatment (HIFU) in the United States...
2017: Case Reports in Urology
https://www.readbyqxmd.com/read/28238758/pathological-findings-in-multiparametric-magnetic-resonance-imaging-ultrasound-fusion-guided-biopsy-relation-to-prostate-cancer-focal-therapy
#18
REVIEW
Jennifer Gordetsky, Soroush Rais-Bahrami, Jonathan I Epstein
The introduction of widespread prostate-specific antigen screening brought about an increase in the detection of clinically low-risk prostate cancer. Many of these patients are overtreated by radical prostatectomy and radiation. Comparatively, focal therapy for prostate cancer offers the advantage of decreased rates of incontinence and impotence. The 12-core extended sextant transrectal ultrasound-guided needle biopsy is unable to safely identify candidates for focal therapy. Multiparametric magnetic resonance imaging (MRI) and MRI/ultrasound fusion-guided biopsy can detect more clinically significant prostate cancers and aid in accurate detection of higher-grade disease...
February 24, 2017: Urology
https://www.readbyqxmd.com/read/28163032/impact-of-gleason-subtype-on-prostate-cancer-detection-using-multiparametric-mri-correlation-with-final-histopathology
#19
Matthew Truong, Gary Hollenberg, Eric Weinberg, Edward M Messing, Hiroshi Miyamoto, Thomas P Frye
PURPOSE: Our purpose was to determine whether Gleason pattern 4 architecture impacts tumor visibility on multiparametric (mpMRI) and correlate with final histopathology. MATERIALS AND METHODS: A total of 83 tumor foci were identified within 22 radical prostatectomy specimens from patients with a prior negative biopsy who underwent MR/US fusion biopsy followed by radical prostatectomy from January 2015-July 2016. A genitourinary pathologist re-reviewed tumor foci for Gleason architectural subtype...
February 2, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28111893/robot-assisted-partial-prostatectomy-for-anterior-prostate-cancer-a-step-by-step-guide
#20
Arnauld Villers, Vincent Flamand, Rodríguez-Carlin Arquímedes, Philippe Puech, Georges-Pascal Haber, Mihir M Desai, Sebastien Crouzet, Adil Ouzzane, Inderbir S Gill
OBJECTIVE: To describe a step-by-step guide to robot-assisted anterior partial prostatectomy (RA-APP) for isolated magnetic resonance imaging (MRI)-detected anterior prostate cancer (APC). PATIENTS AND METHODS: After Institutional Review Board approval, over an 8-year period (2008-2015), 17 consenting patients were enrolled in a prospective, single-arm, single-centre, Idea, Development, Evaluation, Assessment and Long-term evaluation of innovative surgery (IDEAL) phase 2a study...
June 2017: BJU International
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