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Hiroto Rikimaru
We evaluated thrombus extension in the proximal stump of the saphenous vein at 6 days, 4 weeks, and 16 weeks after saphenous vein surgery performed between July 2013 and March 2014 (18 patients, 29 limbs, and 31 stumps) using duplex ultrasonography. All thrombotic events were classified as endovenous heat-induced thrombosis (EHIT). Thrombus was observed in 27 stumps (87.1%), with only four (12.9%) stumps remaining without thrombus on postoperative day 6. Thrombus as EHIT class 2 was observed in one stump and as EHIT class 3 in another; in the remaining 25 stumps, it was observed as EHIT class 1 postoperatively...
2016: Annals of Vascular Diseases
Daniela Carnevale, Marialuisa Perrotta, Fabio Pallante, Valentina Fardella, Roberta Iacobucci, Stefania Fardella, Lorenzo Carnevale, Raimondo Carnevale, Massimiliano De Lucia, Giuseppe Cifelli, Giuseppe Lembo
The crucial role of the immune system in hypertension is now widely recognized. We previously reported that hypertensive challenges couple the nervous drive with immune system activation, but the physiological and molecular mechanisms of this connection are unknown. Here, we show that hypertensive challenges activate splenic sympathetic nerve discharge to prime immune response. More specifically, a vagus-splenic nerve drive, mediated by nicotinic cholinergic receptors, links the brain and spleen. The sympathetic discharge induced by hypertensive stimuli was absent in both coeliac vagotomized mice and in mice lacking α7nAChR, a receptor typically expressed by peripheral ganglionic neurons...
2016: Nature Communications
Vít Herynek, Karolína Turnovcová, Pavel Veverka, Tereza Dědourková, Pavel Žvátora, Pavla Jendelová, Andrea Gálisová, Lucie Kosinová, Klára Jiráková, Eva Syková
INTRODUCTION: Magnetic nanoparticles (NPs) represent a tool for use in magnetic resonance imaging (MRI)-guided thermoablation of tumors using an external high-frequency (HF) magnetic field. To avoid local overheating, perovskite NPs with a lower Curie temperature (T c) were proposed for use in thermotherapy. However, deposited power decreases when approaching the Curie temperature and consequently may not be sufficient for effective ablation. The goal of the study was to test this hypothesis...
2016: International Journal of Nanomedicine
Salvatore Gruttadauria, Duilio Pagano, Alessandro Tropea, Davide Cintorino, Luisa Castellana, Pasquale Bonsignore, Calogero Ricotta, Gaetano Piccolo, Giovanni Vizzini, Angelo Luca
BACKGROUND: The surgical therapy of choice for hepatocellular carcinoma (HCC) is liver transplantation (LT) or hepatic resection, although only a small percentage of patients can undergo these procedures. Microwave thermal ablation (MWTA) can be an effective alternative treatment for HCC that complicates a cirrhotic liver disease, either as a final procedure or for downstaging patients on the waiting list for LT, or in combination with resective surgery to achieve oncological radicality...
October 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Anna Laurenzana, Francesca Margheri, Anastasia Chilla', Alessio Biagioni, Giancarlo Margheri, Lido Calorini, Gabriella Fibbi, Mario Del Rosso
Cell therapies are treatments in which stem or progenitor cells are induced to differentiate into the specific cell type required to repair damaged or destroyed tissues. Following their discovery, endothelial progenitor cells (EPCs) have stimulated a worldwide interest as possible vehicles to perform an autologous cell-therapy of tumors. Taking into account the tumor-homing properties of EPCs, two different approaches to control cancer progression have been pursued by combining the cell-based therapy with gene therapy or with nanomedicine...
August 8, 2016: Human Gene Therapy
Will H McKay, Emory R McTyre, Catherine Okoukoni, Natalie K Alphonse-Sullivan, Jimmy Ruiz, Michael T Munley, Shadi Qasem, Hui-Wen Lo, Fei Xing, Adrian W Laxton, Stephen B Tatter, Kounosuke Watabe, Michael D Chan
OBJECTIVE There are a variety of salvage options available for patients with brain metastases who experience local failure after stereotactic radiosurgery (SRS). These options include resection, whole-brain radiation therapy, laser thermoablation, and repeat SRS. There is little data on the safety and efficacy of repeat SRS following local failure of a prior radiosurgical procedure. This study evaluates the clinical outcomes and dosimetric characteristics of patients who experienced tumor recurrence and were subsequently treated with repeat SRS...
August 5, 2016: Journal of Neurosurgery
Elisa Francone, Elena Muzio, Luigi D'Ambra, Carlo Aschele, Teseo Stefanini, Cinzia Sani, Emilio Falco, Stefano Berti
BACKGROUND: For the treatment of both primary and metastatic liver tumors, laparoscopic parenchyma-sparing surgery is advocated to reduce postoperative liver failure and facilitate reoperation in the case of recurrence. However, atypical and wedge resections are associated with a higher amount of intraoperative bleeding than are anatomical resections, and such bleeding is known to affect short- and long-term outcomes. Beyond the established role of radiofrequency and microwave ablation in the setting of inoperable liver tumors, the application of thermoablative energy along the plane of the liver surface to be transected results in a zone of coagulative necrosis, possibly minimizing bleeding of the cut liver surface during parenchymal transection...
July 21, 2016: Surgical Endoscopy
Luke Tomycz, Ali Haider, Maura Hamilton, David B Clarke, Mark R Lee
INTRODUCTION: It has been increasingly recognized that the insular cortex plays an important role in frontotemporal epilepsy (FTE) in children. The insula, however, cannot properly by monitored with conventional subdural grids, and open surgical resection of the insula is technically difficult and often associated with significant morbidity. Stereotactically placed insular depth electrodes allow direct and comprehensive monitoring of this region, and can easily be replaced with a laser applicator for minimally invasive treatment via thermo-ablation...
August 2016: Neurosurgery
Dimitrios Kaparelos, Demetrios Moris, Michalis Kontos, Alexandros Papalampros, Athanasios Petrou, Christos Tsigris, Emmanouil Pikoulis, Nikolaos Kavantzas, Apostolos Papalois, Evangelos Felekouras
PURPOSE: The aim of this study was to compare the feasibility, efficacy and safety of microwave ablation and saline-linked radiofrequency (Aquamantys) in liver resection. METHODS: Sixteen domestic pigs (8 per group) underwent thermoablations. Group A consisted of 8 pigs in which microwave left lateral liver resection was performed. Group B consisted of 8 pigs which underwent left lateral liver resection by the Aquamantys system. After 28 days of close follow-up, the animals were sacrificed in order to study the macroscopic and microscopic findings of each intervention on the liver edge...
March 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Nobuyuki Takeyama, Sirachat Vidhyarkorn, Dong Jin Chung, Surachate Siripongsakun, Hyun J Kim, David S K Lu, Steven S Raman
PURPOSE: To retrospectively determine whether hepatobiliary phase (HBP) sequence outperforms unenhanced T1-weighted imaging (uT1wI) in distinguishing the ablation margin (AM) from hepatocellular carcinoma (HCC) 24 h after thermoablation. MATERIAL AND METHODS: Ninety-one patients [mean age, 65.7 years; 68 M/23F] with 138 HCCs (>6 months follow-up) underwent pre- and postablation gadoxetate disodium-enhanced MRI. AM showed a hyperintense middle zone (MZ) surrounding central hypo- or hyperintense HCCs on uT1wI, and an intermediate-intense MZ encompassing central hypo- or hyperintense HCCs during HBP...
October 2016: Abdominal Radiology
Nicolò Mauro, Anna Li Volsi, Cinzia Scialabba, Mariano Licciardi, Gennara Cavallaro, Gaetano Giammona
OBJECTIVE: A new tumor targeted polymer-coated gold/graphene hybrid has been developed for achieving simultaneously thermoablation and chemoterapy of folate receptor-positive cancer cells. METHODS: The gold/graphene hybrid was prepared by depositing gold nanospheres onto graphene oxide and coating it with an inulin-folate conjugate. Paclitaxel was loaded by sonication. The hybrid was characterized by UV-Vis spectroscopy, DSC analysis and SEM microscopy. The cytotoxicity, thermoablation and anticancer activity were evaluated in vitro on MCF-7 and 16 HBE...
May 20, 2016: Current Drug Delivery
Konstantin David Kohlhase, Yücel Korkusuz, Daniel Gröner, Christian Erbelding, Christian Happel, Wolfgang Luboldt, Frank Grünwald
Purpose The aim of this study was to evaluate the decrease of benign thyroid nodules after bipolar radiofrequency ablation (RFA) in a 3-month follow-up using a multiple overlapping shot technique ('MOST'). Methods A total of 18 patients with 20 symptomatic benign thyroid nodules (17 cold nodules, 3 hyperfunctioning nodules) were treated in one single session by bipolar RFA. Bipolar ablation was performed using MOST. The nodule volumes were measured prior to ablation and 3 months after the procedure using ultrasound...
August 2016: International Journal of Hyperthermia
Robert M Eisele
Local ablation of liver tumors matured during the recent years and is now proven to be an effective tool in the treatment of malignant liver lesions. Advances focus on the improvement of local tumor control by technical innovations, individual selection of imaging modalities, more accurate needle placement and the free choice of access to the liver. Considering data found in the current literature for conventional local ablative treatment strategies, virtually no single technology is able to demonstrate an unequivocal superiority...
April 21, 2016: World Journal of Gastroenterology: WJG
K I Ringe, M Panzica, C von Falck
UNLABELLED: The aim of this article is to review the significance of percutaneous thermal ablation in the treatment of bone tumors. We describe available ablation techniques as well as advantages and disadvantages in specific settings. In detail, radiofrequency ablation (RFA), microwave ablation (MWA), laser ablation, high intensity focused ultrasound (HIFU) and cryoablation are presented. In the second part of this review curative and palliative indications for the treatment of benign and malignant bone tumors are discussed...
June 2016: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Junfeng Zhao, Linxue Qian, Yuan Zu, Ying Wei, Xiangdong Hu
The objective of this study was to explore the value of ultrasound-guided percutaneous microwave thermoablation to treat secondary hyperparathyroidism (SHPT). One hundred and thirty-eight parathyroid glands from 56 patients with SHPT were ablated in this study. All the parathyroid glands were evaluated by real-time contrast-enhanced ultrasound before, during and after ablation. Changes in serum parathyroid hormone (sPTH) levels were measured before treatment and at 1 h, 1 wk, 1 mo and 6 mo after thermoablation treatment...
May 2016: Ultrasound in Medicine & Biology
Konrad Mohnike, Steffen Wolf, Robert Damm, Max Seidensticker, Ricarda Seidensticker, Frank Fischbach, Nils Peters, Peter Hass, Günther Gademann, Maciej Pech, Jens Ricke
BACKGROUND: To evaluate complications and identify risk factors for adverse events in patients undergoing high-dose-rate interstitial brachytherapy (iBT). MATERIAL AND METHODS: Data from 192 patients treated in 343 CT- or MRI-guided interventions from 2006-2009 at our institution were analyzed. In 41 %, the largest tumor treated was ≥ 5 cm, 6 % of the patients had tumors ≥ 10 cm. Prior to iBT, 60 % of the patients had chemotherapy, 22 % liver resection, 19 % thermoablation or transarterial chemoembolization (TACE)...
May 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
Bulent Erol, Mert O Topkar, Abbas Tokyay, Omer Sofulu, Emrah Caliskan, Erhan Okay
In this retrospective study, we evaluated the efficiency of minimal invasive intralesional extended curettage in the treatment of osteoid osteomas of the extremities in children. Forty-seven children (29 males, 18 females; mean age 10.5 years; range 4-19 years) with osteoid osteoma of the extremities underwent minimal invasive intralesional extended curettage. The exact localization of the nidus was determined preoperatively by thin-section (1-1.5 mm) computed tomography scans, and complete excision of the nidus was performed using a modified burr-down technique...
February 25, 2016: Journal of Pediatric Orthopedics. Part B
Suad Jaganjac, Lennart Schefe
BACKGROUND/AIM: Palliative embolization of renal tumors is the method of choice in the treatment of advanced inoperable renal cell carcinoma in patients with hematuria and pain. Patients with small tumors in the remaining solitary kidney who refuse surgery are suitable for this type of therapy as well as patients with centrally located inoperable tumors. The prerequisite for successful capillary embolization is the closure of the main arterial trunk with metal spirals. METHODS: In the period from 2000 to 2010 we conducted 42 palliative embolizations...
December 2015: Vojnosanitetski Pregled. Military-medical and Pharmaceutical Review
Andrea Ciavattini, Francesca Mancioli, Enrico Paci, Rocco Politano
Bone metastasis resulting from breast cancer in pregnancy is rare. In the literature there are few reports regarding osteolytic lesions in pregnancy and no data on the treatment of such femoral fractures. The present study reports a case of a 29-week primigravida presenting with severe lumbosciatica in the left side, refractory to medical therapy. During neurosurgical examination a spontaneous pathological fracture of the left femur occurred. Damage control orthopedic principals were applied and a biopsy specimen from the femoral lesion was obtained, providing a diagnosis of metastases from breast adenocarcinoma...
January 2016: Oncology Letters
Lukas Winter, Eva Oberacker, Katharina Paul, Yiyi Ji, Celal Oezerdem, Pirus Ghadjar, Alexander Thieme, Volker Budach, Peter Wust, Thoralf Niendorf
Clinically established thermal therapies such as thermoablative approaches or adjuvant hyperthermia treatment rely on accurate thermal dose information for the evaluation and adaptation of the thermal therapy. Intratumoural temperature measurements have been correlated successfully with clinical end points. Magnetic resonance imaging is the most suitable technique for non-invasive thermometry avoiding complications related to invasive temperature measurements. Since the advent of MR thermometry two decades ago, numerous MR thermometry techniques have been developed, continuously increasing accuracy and robustness for in vivo applications...
2016: International Journal of Hyperthermia
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