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https://www.readbyqxmd.com/read/29399612/validity-of-conventional-endoscopy-using-non-extension-sign-for-optical-diagnosis-of-colorectal-deep-submucosal-invasive-cancer
#1
Takashi Hisabe, Sumio Tsuda, Toshio Hoashi, Hiroshi Ishihara, Kazutomo Yamasaki, Tatsuhisa Yasaka, Fumihito Hirai, Toshiyuki Matsui, Kenshi Yao, Hiroshi Tanabe, Akinori Iwashita
Background and study aims:  The non-extension sign relates to a localized increase in thickness and rigidity due to deep submucosal invasive (SM-d: depth of 1000 μm or more) cancer. The present study aimed to evaluate the efficacy of the non-extension sign in assessing the optical diagnosis of colorectal SM-d cancer. Patients and methods:  We retrospectively analyzed 309 patients with 315 early colorectal cancers that had been endoscopically or surgically resected...
February 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29378941/in-vivo-wireless-photonic-photodynamic-therapy
#2
Akshaya Bansal, Fengyuan Yang, Tian Xi, Yong Zhang, John S Ho
An emerging class of targeted therapy relies on light as a spatially and temporally precise stimulus. Photodynamic therapy (PDT) is a clinical example in which optical illumination selectively activates light-sensitive drugs, termed photosensitizers, destroying malignant cells without the side effects associated with systemic treatments such as chemotherapy. Effective clinical application of PDT and other light-based therapies, however, is hindered by challenges in light delivery across biological tissue, which is optically opaque...
January 29, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29368069/effect-of-low-level-laser-therapy-on-the-healing-process-of-donor-site-in-patients-with-grade-3-burn-ulcer-after-skin-graft-surgery-a-randomized-clinical-trial
#3
Reza Vaghardoost, Mahnoush Momeni, Nooshafarin Kazemikhoo, Soheila Mokmeli, Mostafa Dahmardehei, Fereshteh Ansari, Mohammad Ali Nilforoushzadeh, Parisa Sabr Joo, Sara Mey Abadi, Soheila Naderi Gharagheshlagh, Saeed Sassani
Skin graft is a standard therapeutic technique in patients with deep ulcers, but managing donor site after grafting is very important. Although several modern dressings are available to enhance the comfort of donor site, using techniques that accelerate wound healing may enhance patient satisfaction. Low-level laser therapy (LLLT) has been used in several medical fields, including healing of diabetic, surgical, and pressure ulcers, but there is not any report of using this method for healing of donor site in burn patients...
January 24, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29303876/optical-coherence-tomography-angiography-description-of-ocular-decompression-retinopathy-after-deep-sclerectomy-in-traumatic-glaucoma
#4
Lauriane Salinas, Ankita Chaudhary, Kaweh Mansouri
PURPOSE: To present a case of ocular decompression retinopathy (ODR) occurring after uncomplicated deep sclerectomy with Mitomycin C using optical coherence tomography angiography (OCTA). PATIENT AND METHOD: Single case report. RESULTS: A 55-year-old man with traumatic glaucoma in the right eye complained of blurred vision. Visual acuity was 20/25 and intraocular pressure (IOP) was 50▒mm Hg. Deep sclerectomy with Mitomycin C was performed...
January 4, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29298873/multicentre-prospective-evaluation-of-real-time-optical-diagnosis-of-t1-colorectal-cancer-in-large-non-pedunculated-colorectal-polyps-using-narrow-band-imaging-the-optical-study
#5
Yara Backes, Matthijs P Schwartz, Frank Ter Borg, Frank H J Wolfhagen, John N Groen, Wouter H de Vos Tot Nederveen Cappel, Jeroen van Bergeijk, Joost M J Geesing, Bernhard W M Spanier, Paul Didden, Frank P Vleggaar, Miangela M Lacle, Sjoerd G Elias, Leon M G Moons
OBJECTIVE: This study evaluated the preresection accuracy of optical diagnosis of T1 colorectal cancer (CRC) in large non-pedunculated colorectal polyps (LNPCPs). DESIGN: In this multicentre prospective study, endoscopists predicted the histology during colonoscopy in consecutive patients with LNPCPs using a standardised procedure for optical assessment. The presence of morphological features assessed with white light, and vascular and surface pattern with narrow-band imaging (NBI) were recorded, together with the optical diagnosis, the confidence level of prediction and the recommended treatment...
January 3, 2018: Gut
https://www.readbyqxmd.com/read/29158852/curative-metatarsal-bone-surgery-combined-with-intralesional-administration-of-recombinant-human-epidermal-growth-factor-in-diabetic-neuropathic-ulceration-of-the-forefoot-a-prospective-open-uncontrolled-nonrandomized-observational-study
#6
Aristides L Garcia Herrera, Ridel de Jesús Febles Sanabria, Liliana de Los Ángeles Acosta Cabadilla, Miriam Moliner Cartaya
Background: Curative surgery is performed for a foot with ulcers and loss of protective sensation to heal the wound and prevent amputation. Evidence supports that patients with diabetes have decreased concentrations of growth factors in their tissues, notably epidermal growth factor (EGF). Injecting EGF deep into the bottom of the wound and its contours encourages a more effective response in terms of granulation tissue growth and wound closure. Objective: To assess the effectiveness and safety of curative metatarsal bone surgery combined with intralesional administration of human recombitant EGF in neuropathic diabetic forefoot ulceration...
2017: Current Therapeutic Research, Clinical and Experimental
https://www.readbyqxmd.com/read/29141056/in-vivo-histological-analysis-of-a-fractional-co2-laser-system-intended-for-treatment-of-soft-tissue
#7
Elisabeth Hurliman, Brian Zelickson, Jeffrey Kenkel
<p>BACKGROUND: Fractional ablative lasers have been shown to be safe and effective for improving wrinkles, scars, skin texture, and dyspigmentation. However, the exact effects of this technology in vivo on epidermal and dermal skin constituents have not been delineated. This study evaluated the in vivo histological effects over time of treatment with a fractional ablative CO2 system, using different treatment parameters. MATERIALS AND METHODS: Healthy adult volunteers were enrolled in this multicenter clinical study...
November 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29118500/iridoplasty-of-fixed-dilated-pupil-urrets-zavalia-syndrome-after-deep-anterior-lamellar-keratoplasty
#8
Efthalia Ntora, Nikolaos Ziakas
A 38-year-old woman with advanced keratoconus initially developed Urrets-Zavalia Syndrome (UZS) in the left eye after deep anterior lamellar keratoplasty. During the uneventful surgery, a 7-mm-wide pupil unresponsive to light was noticed. On the first postoperative day, intraocular pressure (IOP) was elevated up to 45 mmHg with shallow anterior chamber (AC). A peripheral iridotomy in 2 o'clock position was conducted and a fixed combination of brinzolamide 1% and timolol 0.5% was administered topically. In the subsequent postoperative period, IOP was successfully reduced, but the patient reported severe photophobia, glare, and decreased vision...
September 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28899891/effect-of-anesthesia-depth-on-postoperative-clinical-outcome-in-patients-with-supratentorial-tumor-depth-study-protocol-for-a-randomized-controlled-trial
#9
Qianyu Cui, Yuming Peng, Xiaoyuan Liu, Bo Jia, Jia Dong, Ruquan Han
INTRODUCTION: Recent studies have shown that deep anaesthesia is associated with poor outcomes. However, no randomised controlled trials have been conducted to test the causality in patients undergoing brain tumour resection. METHODS AND ANALYSIS: DEPTH is a multicenter, randomised, parallel-group, blind trial. The depth of general anaesthesia will be monitored using the bispectral index (BIS). Patients elected for supratentorial tumour resection will be randomly allocated to the deep or the light anaesthesia group in which the target BIS value is 35 or 50, respectively...
September 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28859566/history-of-psychosurgery-at-sainte-anne-hospital-paris-france-through-translational-interactions-between-psychiatrists-and-neurosurgeons
#10
Marc Zanello, Johan Pallud, Nicolas Baup, Sophie Peeters, Baris Turak, Marie Odile Krebs, Catherine Oppenheim, Raphael Gaillard, Bertrand Devaux
Sainte-Anne Hospital is the largest psychiatric hospital in Paris. Its long and fascinating history began in the 18th century. In 1952, it was at Sainte-Anne Hospital that Jean Delay and Pierre Deniker used the first neuroleptic, chlorpromazine, to cure psychiatric patients, putting an end to the expansion of psychosurgery. The Department of Neuro-psychosurgery was created in 1941. The works of successive heads of the Neurosurgery Department at Sainte-Anne Hospital summarized the history of psychosurgery in France...
September 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28834124/black-peel-in-facial-dermatoses
#11
Ebtisam Elghblawi
BACKGROUND: Melasma (facial dermatoses) is an acquired chronic disorder of hyperpigmentation over sun exposed parts and continues to be a therapeutic challenge due to the presence of melanin at varying depths in the epidermis and dermis, and many researchers are working hard to find a solution. The main culprit to remain is direct sun exposure, with other factors like drugs, genetic predisposition, thyroid abnormalities, pregnancy, phototoxic and photoallergic cosmetics. Melasma continues to have a remarkable impact on the well-being of affected patients causing deep psychological and social anguish, and with the expansion of cosmetic dermatology globally, treatments that are successful against skin diseases and boost beauty without prolonged recovery periods, or exposing patients to the risks of surgery, are increasingly recognised and acknowledged...
August 22, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28665248/wavelength-specific-lighted-suction-instrument-for-5-aminolevulinic-acid-fluorescence-guided-resection-of-deep-seated-malignant-glioma-technical-note
#12
Ramin A Morshed, Seunggu J Han, Darryl Lau, Mitchel S Berger
Surgery guided by 5-aminolevulinic acid (ALA) fluorescence has become a valuable adjunct in the resection of malignant intracranial gliomas. Furthermore, the fluorescence intensity of biopsied areas of a resection cavity correlates with histological identification of tumor cells. However, in the case of lesions deep within a resection cavity, light penetration may be suboptimal, resulting in less excitation of 5-ALA metabolites, leading to decreased fluorescence emission. To address this obstacle, the authors report on the use of a 400-nm wavelength fiber-optic lighted suction instrument that can be used both during resection of a tumor and to provide direct light to deeper areas of a resection cavity...
June 30, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28648703/osteoclasts-in-periprosthetic-osteolysis-the-charnley-arthroplasty-revisited
#13
Sebastian S Mukka, Göran N Andersson, Kjell R Hultenby, Olof G Sköldenberg, Joakim P Nordahl, Thomas M Eisler
BACKGROUND: Periprosthetic osteolysis by polyethylene wear debris-triggered osteoclasts is viewed as the main pathophysiological pathway in aseptic loosening in total hip arthroplasty. The present aim was to study osteoclast occurrence in osteolytic lesions in early and late revisions of the Charnley low-friction torque arthroplasty (CLFA). METHODS: Biopsies of the soft interface membrane and the adjacent bone were taken from osteolytic lesions during revision of 16 loose CLFA, early (2-6 years) or late (>10 years) after primary surgery...
May 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28614337/dual-axis-optical-coherence-tomography-for-deep-tissue-imaging
#14
Yang Zhao, Will J Eldridge, Jason R Maher, Sanghoon Kim, Michael Crose, Mohamed Ibrahim, Howard Levinson, Adam Wax
We have developed dual-axis optical coherence tomography (DA-OCT) which enables deep tissue imaging by using a novel off-axis illumination/detection configuration. DA-OCT offers a 100-fold speed increase compared with its predecessor, multispectral multiple-scattering low coherence interferometry (ms2/LCI), by using a new beam scanning mechanism based on a microelectro-mechanical system (MEMS) mirror. The data acquisition scheme was altered to take advantage of this scanning speed, producing tomographic images at a rate of 4 frames (B-scans) per second...
June 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28602930/illumination-in-spinal-surgery-depending-on-different-approaches-and-light-sources
#15
Eike Wilbers, Christian Ewelt, Stephanie Schipmann, Walter Stummer, Mark Klingenhöfer
BACKGROUND: Sufficient visualization of the operating field is crucial for success in surgery and is important especially concerning minimally invasive and deep approaches in spine surgery. METHODS: The spinal microsurgical approach was imitated using an isolated box that was accessed with different devices. Different light sources and auxiliary devices were analyzed and compared. Light sources used were a microscope, a standard operating room lamp, and a headlamp...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28556252/traumatic-globe-rupture-after-deep-anterior-lamellar-keratoplasty-a-novel-management-technique
#16
Miltiadis Fiorentzis, Sebastian Bäurle, Anja Viestenz, Berthold Seitz, Arne Viestenz
BACKGROUND: A traumatic wound dehiscence can occur many years after surgery in 2-6% of all keratoplasties. Intraocular tissue prolapse can lead to severe visual loss. Deep anterior lamellar keratoplasty (DALK) leads to higher wound stability because of the intact Descemet membrane. We report a case of a novel management of wound dehiscence following DALK. METHODS: A 59-year-old patient underwent uncomplicated DALK for advanced keratoconus. Eighteen months later he experienced a traumatic wound dehiscence (globe rupture) after a fall...
May 27, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28549000/a-comparison-of-anterior-and-posterior-lumbar-interbody-fusions-complications-readmissions-discharge-dispositions-and-costs
#17
Rabia Qureshi, Varun Puvanesarajah, Amit Jain, Adam L Shimer, Francis H Shen, Hamid Hassanzadeh
STUDY DESIGN: Retrospective Database Review OBJECTIVE.: To understand medical complication rates, readmission rates, costs and discharge dispositions in ALIFs versus TLIF/PLIFs for lumbar degenerative disease. SUMMARY OF BACKGROUND DATA: Indications for anterior (ALIFs) vs posterior lumbar interbody fusions (PLIFs) can vary, though benefits of anterior approach surgery include full access to the anterior column and ability to place fusion devices. METHODS: The PearlDiver Database of Medicare records was utilized for this retrospective database review...
May 25, 2017: Spine
https://www.readbyqxmd.com/read/28418855/a-review-and-outlook-in-the-treatment-of-osteosarcoma-and-other-deep-tumors-with-photodynamic-therapy-from-basic-to-deep
#18
REVIEW
Wei Yu, Jian Zhu, Yitian Wang, Junjie Wang, Weijing Fang, Kaishun Xia, Jianlin Shao, Minzu Wu, Bing Liu, Chengzhen Liang, Chengyi Ye, Huimin Tao
Photodynamic therapy, one of the most promising minimally invasive treatments, has received increasing focus in tumor therapy research, which has been widely applied in treating superficial tumors. Three basic factors - photosensitizer, the light source, and oxidative stress - are responsible for tumor cell cytotoxicity. However, due to insufficient luminous flux and peripheral tissue damage, the utilization of photodynamic therapy is facing a huge limitation in deep tumor therapy. Osteosarcoma is the typical deep tumor, which is the most commonly occurring malignancy in children and adolescents...
June 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28383293/peripheral-nerve-block-as-a-supplement-to-light-or-deep-general-anesthesia-in-elderly-patients-receiving-total-hip-arthroplasty-a-prospective-randomized-study
#19
Bin Mei, Hanning Zha, Xiaolong Lu, Xinqi Cheng, Shishou Chen, Xuesheng Liu, Yuanhai Li, Erwei Gu
BACKGROUND: Peripheral nerve block combined with general anesthesia is a preferable anesthesia method for elderly patients receiving hip arthroplasty. The depth of sedation may influence patient recovery. Therefore, we investigated the influence of peripheral nerve blockade and different intraoperative sedation levels on the short-term recovery of elderly patients receiving total hip arthroplasty. METHODS: Patients aged 65 years and older undergoing total hip arthroplasty were randomized into 3 groups: a general anesthesia without lumbosacral plexus block group, and 2 general anesthesia plus lumbosacral plexus block groups, each with a different level of sedation (light or deep)...
December 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28221337/modulation-of-digital-flexor-tendon-healing-by-vascular-endothelial-growth-factor-gene-transfection-in-a-chicken-model
#20
W F Mao, Y F Wu, Q Q Yang, Y L Zhou, X T Wang, P Y Liu, J B Tang
A major challenge in tendon injury is the weak intrinsic healing capacity of tendon that may cause rupture of the repair after surgery. Growth factors are believed to be critical during tendon healing. This study aimed to investigate the effects of vascular endothelial growth factor (VEGF) genes delivered by adeno-associated virus (AAV) vectors on tendon healing and molecular events involved in a chicken model. A total of 128 deep flexor tendons in the long toes of chickens were completely transected and injected with 2 × 10(9) particles of AAV2-VEGF or saline before surgically repaired...
April 2017: Gene Therapy
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