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Thermal surgery

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https://www.readbyqxmd.com/read/28538060/effect-of-low-level-laser-and-light-emitting-diode-on-inferior-alveolar-nerve-recovery-after-sagittal-split-osteotomy-of-the-mandible-a-randomized-clinical-trial-study
#1
Seyed Hasan Mohajerani, Faraj Tabeie, Mehdi Bemanali, Reza Tabrizi
PURPOSE: The major concern of sagittal split osteotomy (SSO) is the neurosensory disturbance. The authors investigated the effect of low-level laser therapy and light-emitting diode on the inferior alveolar nerve recovery after SSO. METHODS: In this double-blinded randomized clinical trial, 20 subjects with inferior alveolar nerve injury after SSO of the mandible were studied. Neurosensory recovery was assessed by 6 tests: visual analog scale (VAS), brush stroke, 2-point discrimination, contact detect detection, pinprick nociception, and thermal discrimination, and each one was performed before and after the surgery on days 1, 3, 7, 14, 60, and 180...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28537049/laser-treatment-for-urethral-hemangiomas-report-of-three-cases
#2
Mohammad Javad Soleimani, Pejman Shadpour, Kaveh Mehravaran, Amir Hossein Kashi
To present our experience with coagulation/laser treatment of urethral hemangiomas. Three cases with small to medium sized urethral hemangiomas in penile and posterior urethra presented with hematuria or urethral bloody discharge. All patients were male. They were treated with thermal or Nd-YAG laser coagulation in the first session. Recurrence of hematuria/bloody discharge happened in two patients within one month from the first treatment that was managed with a second session of laser coagulation. No third session of intervention for hematuria/bloody discharge was required in any patient during 10-39 months of follow up...
May 23, 2017: Urology Journal
https://www.readbyqxmd.com/read/28532074/highly-effective-cu-zn-carbon-micro-nanofiber-polymer-nanocomposite-based-wound-dressing-biomaterial-against-the-p-aeruginosa-multi-and-extensively-drug-resistant-strains
#3
Mohammad Ashfaq, Nishith Verma, Suphiya Khan
Pseudomonas aeruginosa (P. aeruginosa) is the most prevalent bacteria in the infections caused by burn, surgery, and traumatic injuries. Emergence of the P. aeruginosa bacterial resistance against various clinical drugs for wound treatment is the major concern nowadays. The present study describes the synthesis of the polyvinyl alcohol (PVA) and cellulose acetate phthalate (CAP) polymeric composite film (~0.2mm thickness) reinforced with the Cu/Zn bimetal-dispersed activated carbon micro/nanofiber (ACF/CNF), as a wound dressing material...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28528576/using-non-thermal-irreversible-electroporation-to-create-an-in-vivo-niche-for-exogenous-cell-engraftment
#4
Tammy T Chang, Vivian X Zhou, Boris Rubinsky
The critical shortage of donor organs has spurred investigation of alternative approaches to either generate replacement organs or implant exogenous cells for treatment of end-stage organ failure. Non-thermal irreversible electroporation (NTIRE), which uses brief high electric field pulses to induce irreversible permeabilization of cell membranes, has emerged as a technique for tumor ablation. Here, we introduce a new application for NTIRE that employs in situ cell ablation to create a niche within a solid organ for engraftment of exogenous cells in vivo...
May 1, 2017: BioTechniques
https://www.readbyqxmd.com/read/28528356/operating-room-fires-in-periocular-surgery
#5
Michael A Connor, Anne M Menke, Ivan Vrcek, John W Shore
AIM: A survey of ophthalmic plastic and reconstructive surgeons as well as seven-year data regarding claims made to the Ophthalmic Mutual Insurance Company (OMIC) is used to discuss operating room fires in periocular surgery. METHODS: A retrospective review of all closed claim operating room fires submitted to OMIC was performed. A survey soliciting personal experiences with operating room fires was distributed to all American Society of Oculoplastic and Reconstructive Surgeons...
May 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28523516/pre-operative-screening-and-manual-drilling-strategies-to-reduce-the-risk-of-thermal-injury-during-minimally-invasive-cochlear-implantation-surgery
#6
Neal P Dillon, Loris Fichera, Kyle Kesler, M Geraldine Zuniga, Jason E Mitchell, Robert J Webster, Robert F Labadie
This article presents the development and experimental validation of a methodology to reduce the risk of thermal injury to the facial nerve during minimally invasive cochlear implantation surgery. The first step in this methodology is a pre-operative screening process, in which medical imaging is used to identify those patients that present a significant risk of developing high temperatures at the facial nerve during the drilling phase of the procedure. Such a risk is calculated based on the density of the bone along the drilling path and the thermal conductance between the drilling path and the nerve, and provides a criterion to exclude high-risk patients from receiving the minimally invasive procedure...
May 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28523065/detection-of-peritonsillar-abscess-using-smartphone-based-thermal-imaging
#7
Myung Jin Ban, Yunyoung Nam, Jae Hong Park
OBJECTIVE: Smartphone-based thermal imaging was evaluated for its utility in the detection of peritonsillar abscesses. METHODS: We describe six cases of peritonsillar abscess in which computed tomography and thermography scans of the neck were performed prior to surgery. RESULTS: Open-mouth thermal photographic images were obtained preoperatively from patients, and asymmetric hot spots with significantly higher temperatures in the peritonsillar area were identified as abscesses...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28521346/real-time-magnetic-resonance-imaging-guided-biopsy-using-smartframe%C3%A2-stereotaxis-in-the-setting-of-a-conventional-diagnostic-magnetic-resonance-imaging-suite
#8
Justin K Scheer, Thomas Hamelin, Leon Chang, Brian Lemkuil, Bob S Carter, Clark C Chen
BACKGROUND: Real-time magnetic resonance imaging (MRI) visualization during stereotactic needle biopsies affords several valuable benefits to the neurosurgeon, including the opportunity to visually confirm the biopsy site at the time of surgery. Until now, reported experiences with this technique have been limited to the setting of intraoperative MRI or dedicated procedural MRI suites with modified ventilation systems. OBJECTIVE: To describe our experience with 11 consecutive patients who underwent real-time MRI-guided biopsy performed using SmartFrame® stereotaxis (MRI Interventions, Irvine, California) in the setting of a conventional diagnostic MRI suite...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28511590/temperature-rise-in-kirschner-wires-inserted-using-two-drilling-methods-forward-and-oscillation
#9
Scott Richard Anderson, Serkan Inceoglu, Montri D Wongworawat
BACKGROUND: Kirschner wires (K-wires) are commonly used in orthopedic surgery. However, the loosening of the pins can lead to delayed or improper healing or infection. Wire loosening can occur by thermal necrosis that occurs due to heat produced during wire insertion. Although the parameters that affect temperature rise in cortical bone during wire insertion and drilling have been studied, the effect of drilling mode (oscillation versus forward) is unknown. The purpose of this study was to compare the temperature changes occurring in cortical bone during wire insertions by oscillating and forward drills...
May 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28507468/paradoxical-effect-of-minocycline-on-established-neuropathic-pain-in-rat
#10
Malek Zarei, Masoumeh Sabetkasaei, Taraneh Moini-Zanjani
Neuropathic pain occurs after peripheral nerve damage, inflammation or infection. In this situation, microglial cells become activated and play a key role in producing pain. Minocycline (microglia inhibitor), was reported to reduce pain when used preventively. However, it seems that, when used after nerve injury, results in its pain reducing effects are different. In this regard, to assess the pain reducing differences of minocycline, neuropathic pain was induced by the ligation of the sciatic nerve in the rat which is recognized as chronic constriction injury (CCI) and minocycline was administered before and after sciatic nerve injury...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28502878/the-relationship-between-sensory-loss-and-persistent-pain-1-year-after-breast-cancer-surgery
#11
Kenneth Geving Andersen, Helle Molter Duriaud, Henrik Kehlet, Eske Kvanner Aasvang
Moderate-to-severe persistent pain after breast cancer surgery (PPBCS) affects 10-20% of the patients. Sensory dysfunction is often concomitantly present suggesting a neuropathic pain state. The relationship between various postoperative pain states and sensory dysfunction has been examined by quantitative sensory testing (QST), but only 2 smaller studies have examined PPBCS and sensory dysfunction in the surgical area. The purpose of this prospective study was to assess the relative importance of sensory function and PPBCS...
May 11, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28502693/prolonged-blood-brain-barrier-disruption-following-laser-interstitial-ablation-in-epilepsy-a-case-series-with-a-case-report-of-post-ablation-optic-neuritis
#12
Saint-Aaron Morris, Matthew Rollo, Patrick Rollo, Jessica Johnson, Gerald A Grant, Elliott Friedman, Giridhar Kalamangalam, Nitin Tandon
OBJECTIVE: Laser interstitial thermal therapy (LITT) has become increasingly popular for targeting epileptic foci in a minimally invasive fashion. Despite its use in more than a thousand patients, the chronic effects of photo-thermal injury on brain physiology remain poorly understood. METHODS: We prospectively followed the clinical and radiographic courses of a cohort undergoing laser ablation for focal epilepsy. Only patients with non-enhancing lesions and those who had a delayed post-operative MRI with gadolinium administration approximately 6 months after the ablation were considered...
May 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28501719/colliding-jets-provide-depth-control-for-water-jetting-in-bone-tissue
#13
S den Dunnen, J Dankelman, G M Kerkhoffs, G Tuijthof
In orthopaedic surgery, water jet drilling provides several advantages over classic drilling with rigid drilling bits, such as the always sharp cut, absence of thermal damage and increased manoeuvrability. Previous research showed that the heterogeneity of bone tissue can cause variation in drilling depth whilst water jet drilling. To improve control over the drilling depth, a new method is tested consisting of two water jets that collide directly below the bone surface. The expected working principle is that after collision the jets will disintegrate, with the result of eliminating the destructive power of the coherent jets and leaving the bone tissue underneath the focal point intact...
May 6, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28499335/thermal-molding-of-organic-thin-film-transistor-arrays-on-curved-surfaces
#14
Masatoshi Sakai, Kento Watanabe, Hiroto Ishimine, Yugo Okada, Hiroshi Yamauchi, Yuichi Sadamitsu, Kazuhiro Kudo
In this work, a thermal molding technique is proposed for the fabrication of plastic electronics on curved surfaces, enabling the preparation of plastic films with freely designed shapes. The induced strain distribution observed in poly(ethylene naphthalate) films when planar sheets were deformed into hemispherical surfaces clearly indicated that natural thermal contraction played an important role in the formation of the curved surface. A fingertip-shaped organic thin-film transistor array molded from a real human finger was fabricated, and slight deformation induced by touching an object was detected from the drain current response...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28496474/enhancement-of-antinociceptive-effect-by-co-administration-of-amitriptyline-and-crocus-sativus-in-a-rat-model-of-neuropathic-pain
#15
Bahareh Amin, Samira Hosseini, Hossein Hosseinzadeh
The aim of this study was to evaluate the anti-nociceptive effects of a low, sub-effective dose of amitriptyline, in combination with the different doses of ethanolic and aqueous extracts of Crocus sativus following sciatic nerve chronic constriction injury (CCI) in rats. Amitriptyline (3, 10 and 30 mg/Kg, i.p.) and the extracts (25, 50 and 100 mg/Kg, i.p.), were separately administered at the time of CCI for 7 consecutive days. In combination therapy, the sub-antinociceptive dose of amitriptyline (3 mg/Kg) was given with the three different doses of extracts for seven days...
2017: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/28492437/continuous-intrathecal-infusion-of-cannabinoid-receptor-agonists-attenuates-nerve-ligation-induced-pain-in-rats
#16
Sheng-Jie Shiue, Hsien-Yu Peng, Chung-Ren Lin, Shih-Wei Wang, Ruey-Horng Rau, Jen-Kun Cheng
BACKGROUND AND OBJECTIVES: Cannabinoid receptors (CB1R/CB2R) are known to play important roles in pain transmission. In this study, we investigated the effects of continuous intrathecal infusion of CB1/2R agonists in the L5/6 spinal nerve ligation pain model. METHODS: Under isoflurane anesthesia, rats received nerve ligation and intrathecal catheter connected to an infusion pump. After surgery, saline (1 μL/h), CB1/2R agonist WIN55,212-2, CB1R agonist ACEA, or CB2R agonist AM1241 (1 μmol/h) was given intrathecally for 7 days...
May 10, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28492016/vaginal-rejuvenation-using-energy-based-devices
#17
REVIEW
Cheryl Karcher, Neil Sadick
Physiologic changes in a woman's life, such as childbirth, weight fluctuations, and hormonal changes due to aging and menopause, may alter the laxity of the vaginal canal, damage the pelvic floor, and devitalize the mucosal tone of the vaginal wall. These events often lead to the development of genitourinary conditions such as stress urinary incontinence; vaginal atrophy; dryness; and physiologic distress affecting a woman's quality of life, self-confidence, and sexuality. Various treatment modalities are currently available to manage these indications, varying from invasive vaginal surgery to more benign treatments like topical vaginal hormonal gels or hormone-replacement therapy...
September 2016: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28490907/perspective-on-the-rez%C3%A5-m-%C3%A2-system-a-minimally-invasive-treatment-strategy-for-benign-prostatic-hyperplasia-using-convective-radiofrequency-water-vapor-thermal-therapy
#18
Henry H Woo, Ricardo R Gonzalez
Convective radiofrequency (RF) water vapor thermal therapy is a minimally invasive office or outpatient procedure for the treatment of bothersome moderate-to-severe lower urinary tract symptoms associated with benign prostatic hyperplasia (BPH). It provides an option for patients seeking rapid and durable relief of urinary symptoms, improved quality of life, and preservation of sexual function as an alternative to long-term use of drugs and avoidance of the potential side effects of pharmaceuticals or invasive BPH surgery...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/28485534/assessment-of-thermal-damage-in-total-knee-arthroplasty-using-an-osteocyte-injury-model
#19
Kosaku Kurata, Junpei Matsushita, Atsushi Furuno, Junichi Fujino, Hiroshi Takamatsu
Polymethylmethacrylate bone cement has been widely used for the anchorage of artificial implants in various orthopedic surgeries. Although it is one of the most successful biomaterials in use, excess heat generation intrinsically causes thermal damage to bone cells adjacent to the bone cement. To estimate a risk of thermal injury, a response of bone cells to cement polymerization must be elucidated because of the occurrence of thermal damage. Thermal damage is affected not only by maximal temperature but also by exposure time, temperature history, and cell type...
May 9, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28484885/the-comparative-accuracy-of-the-rosa-stereotactic-robot-across-a-wide-range-of-clinical-applications-and-registration-techniques
#20
Nicholas J Brandmeir, Sandip Savaliya, Pratik Rohatgi, Michael Sather
Robot-assisted stereotactic neurosurgery is an emerging technology with a growing range of applications. The ROSA system is a robotic stereotactic system that has been shown to be accurate in laboratory studies and large case series. The goal of this study was to examine the accuracy of the ROSA across different registration methods as well as different clinical applications. Sixteen patients with one hundred and seventeen stereotactic trajectories were examined. Accuracy was compared by measuring the distance between the trajectory target and the actual termination of the device as determined by imaging...
May 8, 2017: Journal of Robotic Surgery
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