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Thermal surgery

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https://www.readbyqxmd.com/read/29453658/high-intensity-focused-ultrasound-hifu-therapy-for-benign-thyroid-nodules-without-anesthesia-or-sedation
#1
Pierpaolo Trimboli, Fabiano Bini, Franco Marinozzi, Jung Hwan Baek, Luca Giovanella
BACKGROUND: Thermal ablation of thyroid nodules has gained momentum due to the possibility to avoid surgery. High-intensity focused ultrasound (HIFU) allows thermal treatment by energy ultrasound beam inside the targeted zone. Aim of our study was to evaluate the effects of HIFU treatment using Beamotion mode without anesthesia. METHODS: Since 2016, patients with normal thyroid function, benign thyroid nodules with diameter no larger than 4 cm, and presenting local discomfort and/or compressive symptoms were treated by HIFU...
February 16, 2018: Endocrine
https://www.readbyqxmd.com/read/29448846/are-infectious-diseases-and-microbiology-new-fields-for-thermal-therapy-research
#2
Deniz Gazel, Mehmet Yılmaz
Antimicrobial chemotherapy and surgery are classical methods for treating infectious diseases. However, there is a need for alternative methods to cure infections caused by antibiotic-resistant pathogens, recurrent or chronic infections, and unreachable local infections in which the use of drugs or surgery is anatomically and physically restricted. Several microorganisms are known to be sensitive to mild hyperthermia, and this sensitivity is one of the potential benefits proposed for the host during an episode of fever...
February 15, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29443860/a-novel-rat-model-of-extremity-trauma-for-pre-hospital-pain-management-research
#3
Lusha Xiang, Harold G Klemcke, Nathan A Wienandt, Kathy L Ryan, Carmen Hinojosa-Laborde
BACKGROUND: Pain management is important in pre-hospital care of patients with extremity trauma (ET). The goal of this study was to establish a rat model of ET for pre-hospital pain research, and validate it using pain behaviors and analgesics. METHODS: Rats were anesthetized using isoflurane and ET was induced in one hindlimb via clamping retrofemoral tissues for 30 sec, followed by closed fibula fracture. Rats regained consciousness after ET. Pain responses in the injured hindlimb to thermal hyperalgesia (paw withdrawal latency, PWL), mechanical allodynia (paw withdrawal pressure, PWP), and weight bearing (WB) were determined before and 90 minutes after ET...
February 14, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29443430/small-scale-machines-driven-by-external-power-sources
#4
REVIEW
Xiang-Zhong Chen, Bumjin Jang, Daniel Ahmed, Chengzhi Hu, Carmela De Marco, Marcus Hoop, Fajer Mushtaq, Bradley J Nelson, Salvador Pané
Micro- and nanorobots have shown great potential for applications in various fields, including minimally invasive surgery, targeted therapy, cell manipulation, environmental monitoring, and water remediation. Recent progress in the design, fabrication, and operation of these miniaturized devices has greatly enhanced their versatility. In this report, the most recent progress on the manipulation of small-scale robots based on power sources, such as magnetic fields, light, acoustic waves, electric fields, thermal energy, or combinations of these, is surveyed...
February 14, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29442092/various-bio-mechanical-factors-affecting-heat-generation-during-osteotomy-preparation-a-systematic-review
#5
Chirag J Chauhan, Darshana N Shah, Foram B Sutaria
Background: As implant site preparation and bone are critical precursors to primary healing, thermal and mechanical damage to the bone must be minimized during the preparation of the implant site. Moreover, excessively traumatic surgery can adversely affect the maturation of bone tissue at the bone/implant interface and consequently diminish the predictability of osseointegration. So, this study was carried out to evaluate the various biological and mechanical factors responsible for heat generation during osteotomy site preparation to reduce the same for successful osseointegration of dental implants...
January 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29439711/liver-resection-surgery-versus-thermal-ablation-for-colorectal-liver-metastases-lava-study-protocol-for-a-randomised-controlled-trial
#6
Kurinchi Gurusamy, Neil Corrigan, Julie Croft, Maureen Twiddy, Stephen Morris, Nick Woodward, Steve Bandula, Daniel Hochhauser, Vicky Napp, Alison Pullan, Nicholas Jakowiw, Raj Prasad, Steven Olde Damink, C J H M van Laarhoven, Johannes H W de Wilt, Julia Brown, Brian R Davidson
BACKGROUND: Although surgical resection has been considered the only curative option for colorectal liver metastases (CLM), thermal ablation has recently been suggested as an alternative curative treatment. A prospective randomised trial is required to define the efficacy of resection vs ablation for the treatment of colorectal liver metastases. METHODS: Design and setting: This is a multicentre, open, randomised controlled non-inferiority trial design with internal pilot and will be performed in tertiary liver centres in UK and The Netherlands...
February 13, 2018: Trials
https://www.readbyqxmd.com/read/29437639/soluble-gpvi-is-elevated-in-injured-patients-shedding-is-mediated-by-fibrin-activation-of-gpvi
#7
Samantha J Montague, Céline Delierneux, Christelle Lecut, Nathalie Layios, Robert J Dinsdale, Christine S-M Lee, Natalie S Poulter, Robert K Andrews, Peter Hampson, Christopher M Wearn, Nathalie Maes, Jonathan Bishop, Amy Bamford, Chris Gardiner, Woei Ming Lee, Tariq Iqbal, Naiem Moiemen, Steve P Watson, Cécile Oury, Paul Harrison, Elizabeth E Gardiner
Soluble glycoprotein VI (sGPVI) is shed from the platelet surface and is a marker of platelet activation in thrombotic conditions. We assessed sGPVI levels together with patient and clinical parameters in acute and chronic inflammatory conditions, including patients with thermal injury and inflammatory bowel disease and patients admitted to the intensive care unit (ICU) for elective cardiac surgery, trauma, acute brain injury, or prolonged ventilation. Plasma sGPVI was measured by enzyme-linked immunosorbent assay and was elevated on day 14 after thermal injury, and was higher in patients who developed sepsis...
February 13, 2018: Blood Advances
https://www.readbyqxmd.com/read/29434432/use-of-1070-nm-fiber-lasers-in-oral-surgery-preliminary-ex-vivo-study-with-fbg-temperature-monitoring
#8
Carlo Fornaini, Elisabetta Merigo, Federica Poli, Chiara Cavatorta, Jean-Paul Rocca, Stefano Selleri, Annamaria Cucinotta
Background and Aims: The aim of this ex vivo study was to demonstrate the performances of 1070 nm fiber lasers for the ablation of oral tissues through the evaluation of the histological modifications made by a blind pathologist and the measurement of the thermal elevation during laser irradiation by a sensor based on a fiber Bragg grating. Materials and Methods: The source used was a pulsed fiber laser emitting at 1070 nm, with 20 W maximum average output power and 100 ns fixed pulse duration...
December 31, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29434427/picosecond-laser-treatment-for-tattoos-and-benign-cutaneous-pigmented-lesions-secondary-publication
#9
REVIEW
Kenichiro Kasai
Background and aims: The selective removal of tattoos and benign cutaneous pigmented lesions with laser energy evolved rapidly with the development of the nanosecond-domain Q-switched laser (ns-laser). Recently, however, a series of picosecond-domain lasers (ps-lasers) with pulsewidths less than 1 ns has become commercially available, enabling more efficient and faster removal of pigmented lesions in the field of dermatologic laser surgery. Rationale behind the ps-laser: The efficacy of the ns-laser depended on the theory of selective photothermolysis, whereby an extremely short pulse width was delivered less than the thermal relaxation time (TRT) of a target...
December 31, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29431049/vitamin-d-supplementation-attenuates-the-behavioral-scores-of-neuropathic-pain-in-rats
#10
Hamid Reza Banafshe, Mohammad Javad Khoshnoud, Alireza Abed, Maryam Saghazadeh, Azam Mesdaghinia
OBJECTIVE(S): Neuropathic pain due to lesion or dysfunction of the peripheral or central nervous system is often refractory to the conventional analgesics. Currently, there is no proven treatment to prevent or cure neuropathic pain. A recent surge of new data suggests the potential effects of vitamin D in the medical community. This study was designed to determine whether acute or chronic vitamin D administration was effective in alleviating symptoms of neuropathic pain in a rat model of neuropathic pain...
February 12, 2018: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29427896/velocimetric-ultrasound-thermometry-applied-to-myocardium-protection-monitoring
#11
Céline Engrand, Didier Laux, Jean-Yves Ferrandis, Roland Demaria, Emmanuel Le Clézio
Tissue temperature control during cardiac surgery is crucial for myocardial protection. To preserve the tissue, a hypothermic cardioplegia is applied in order to decrease the heart temperature down to around 10°C. The monitoring of the thermal evolution of the myocardium is then of importance to minimize deleterious effects on the heart. The present work aims at evaluating the potential of an ultrasonic velocimetric thermometry on the monitoring of in vitro tissues heating. An indentation process is first proposed to identify the experimental linear relationship linking, in myocardia, the speed of the ultrasonic longitudinal wave to the tissue temperature...
February 1, 2018: Ultrasonics
https://www.readbyqxmd.com/read/29425986/is-edema-a-matter-of-concern-after-laser-ablation-of-epileptogenic-focus
#12
Vivek Tandon, Michael Lang, Poodipedi Sarat Chandra, Ashwini Sharan, Ajay Garg, Manjari Tripathi
BACKGROUND: A stereotactically placed laser fiber can deliver thermal energy to an epileptogenic focus in brain. This procedure is done under intraoperative (thermography) magnetic resonance imaging (MRI) guidance. Thermoablation can lead to edema in surrounding area and can cause secondary insult. In this case report of three cases, we have quantified the edema produced after laser ablation, with sequential MRI in immediate post-operative period. CASE DESCRIPTION(S): Three patients of intractable epilepsy underwent proper neurological and neuro-radiological workup to localize the site of epileptogenic foci...
February 6, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29419328/brain-focused-ultrasound-what-s-the-fus-all-about-a-review-of-current-and-emerging-neurological-applications
#13
Laure Bretsztajn, Wladyslaw Gedroyc
Magnetic resonance-guided focused ultrasound surgery (MRgFUS) allows for precise non-invasive thermal ablation of target tissues for a wide range of clinical applications. It is an innovative and rapidly expanding technology which has already established itself as an effective and safe incisionless alternative in the treatment of various soft tissue tumours, with many more research studies underway to extend its therapeutic envelope. The non-invasiveness of the procedure makes FUS particularly attractive in functional neurosurgery, where existing treatment options are not suitable for all patients...
February 8, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29414561/a-modern-epilepsy-surgery-treatment-algorithm-incorporating-traditional-and-emerging-technologies
#14
REVIEW
Dario J Englot
Epilepsy surgery has seen numerous technological advances in both diagnostic and therapeutic procedures in recent years. This has increased the number of patients who may be candidates for intervention and potential improvement in quality of life. However, the expansion of the field also necessitates a broader understanding of how to incorporate both traditional and emerging technologies into the care provided at comprehensive epilepsy centers. This review summarizes both old and new surgical procedures in epilepsy using an example algorithm...
February 1, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29411402/safety-tolerability-and-efficacy-evaluation-of-the-slimme-device-for-circumference-reduction
#15
Giovanni Ferrando
OBJECTIVE: To assess the short- and long-term thermal impact of subclinical and clinical regimens of a single, non-invasive uniform ultrasound treatment session on subcutaneous adipose tissue (SAT). STUDY DESIGN: Prospective, open-label, single-arm, split-side study. METHODS: Patients (n = 17) were subjected to uniform ultrasound treatment, delivered in a single session with the SlimME device. The device was set to one of four treatment regimens, which differed in their durations and energy fluences during the raise and maintenance phases...
February 7, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29408967/effects-of-stellate-ganglion-block-on-analgesia-produced-by-cervical-paravertebral-block-as-established-by-quantitative-sensory-testing-a-randomized-controlled-trial
#16
Luc A Sermeus, Luc E Vanlinthout, Guy H Hans, Tom Schepens, Margaretha B Breebaart, Veerle C Verheyen, Carine J Smitz, Marcel P Vercauteren
Objective: To use quantitative sensory testing (QST) to assess whether a stellate ganglion block (SGB) modulates the analgesia induced by cervical paravertebral block (CPVB). Design: A prospective double-blind randomized controlled trial. Setting: Department of Anesthesia, Antwerp University Hospital, October 2011 to December 2015. Subjects: Twenty-eight adults scheduled for arthroscopy of a nonfractured shoulder were enrolled...
February 2, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29408592/stereotactic-radiofrequency-thermocoagulation-of-hypothalamic-hamartoma-using-robotic-guidance-rosa-co-registered-with-o-arm-guidance-preliminary-technical-note
#17
Vivek Tandon, Poodipedi Sarat Chandra, Ramesh Sharanappa Doddamani, Heri Subianto, Jitin Bajaj, Ajay Garg, Manjari Tripathi
INTRODUCTION: Treatment options for hypothalamic hamartoma (HH) include microvascular surgery, stereotactic radiofrequency thermocoagulation (SRT), laser interstitial thermal therapy (LITT) or Gamma knife surgery (GKS). During SRT, thermographic monitoring cannot be performed and therefore highly accurate placement of electrode and confirmation of its position are required. We have utilized robotic guidance (ROSA) and co-registered it with O-Arm, for performing ablation of hamartoma. METHODS: Five patients of HH with gelastic seizures (GS) underwent SRT...
February 3, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29406415/magnetic-resonance-imaging-guided-high-intensity-focused-ultrasound-applications-in-pediatrics-early-experience-at-children-s-national-medical-center
#18
Karun V Sharma, Pavel S Yarmolenko, Avinash Eranki, Ari Partanen, Haydar Celik, AeRang Kim, Matthew Oetgen, Peter C W Kim
Magnetic resonance imaging-guided high-intensity focused ultrasound (MR-HIFU) is a novel technology that integrates magnetic resonance imaging with therapeutic ultrasound. This unique approach provides a completely noninvasive method for precise thermal ablation of targeted tissues with real-time imaging feedback. Over the past 2 decades, MR-HIFU has shown clinical success in several adult applications ranging from treatment of painful bone metastases to uterine fibroids to prostate cancer and essential tremor...
February 2018: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/29402556/electrochemotherapy-as-treatment-option-for-hepatocellular-carcinoma-a-prospective-pilot-study
#19
Mihajlo Djokic, Maja Cemazar, Peter Popovic, Bor Kos, Rok Dezman, Masa Bosnjak, Martina Niksic Zakelj, Damijan Miklavcic, Stojan Potrc, Borut Stabuc, Ales Tomazic, Gregor Sersa, Blaz Trotovsek
BACKGROUND AND OBJECTIVES: Electrochemotherapy provides non-thermal ablation of cutaneous as well as deep seated tumors. Based on positive results of the treatment of colorectal liver metastases, we conducted a prospective pilot study on hepatocellular carcinomas with the aim of testing the feasibility, safety and effectiveness of electrochemotherapy. PATIENTS AND METHODS: Electrochemotherapy with bleomycin was performed on 17 hepatocellular carcinomas in 10 patients using a previously established protocol...
February 2, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29396880/effects-of-perioperative-warm-socks-wearing-in-maintaining-core-temperature-of-patients-undergoing-spinal-surgery
#20
Hui Yeon Lee, Gaeun Kim, Yeonghee Shin
AIMS AND OBJECTIVES: The aim of this study was to investigate whether warming the feet with socks would prevent hypothermia among patients undergoing spinal surgery. BACKGROUNDS: Perioperative hypothermia is a common health problem among spinal surgery patients. RESEARCH DESIGN: This study used a quasi-experimental design. METHODS: Seventy-two patients were assigned to two groups. The control group (n=36) received usual care without the warmed socks...
February 3, 2018: Journal of Clinical Nursing
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