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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
#1
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
#2
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
#3
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
#4
Eike Wilbers, Christian Ewelt, Stephanie Schipmann, Walter Stummer, Mark Klingenhöfer
Sufficient visualisation of the operating field is crucial for success in surgery and is important especially concerning minimal 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 analysed aiming to compare them to each other. As light source we used one microscope, one standard operating theatre lamp and one headlamp. The auxiliary devices included different tubes with and without optic light fibre, different retractors and one endoscope RESULTS/CONCLUSION: Hence, we demonstrated that different combinations of light sources and auxiliary devices provide significantly different illumination in the artificial operating field...
June 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28556252/traumatic-globe-rupture-after-deep-anterior-lamellar-keratoplasty-a-novel-management-technique
#5
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
#6
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
#7
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
#8
Bin Mei, Hanning Zha, Xiaolong Lu, Xinqi Cheng, Shishou Cheng, 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 aimed to investigate 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 three groups: a general anesthesia without lumbosacral plexus block group, and two general anesthesia plus lumbosacral plexus block groups, each with a different level of sedation (light or deep)...
April 5, 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
#9
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
https://www.readbyqxmd.com/read/28138772/effect-of-corneal-collagen-crosslinking-on-subsequent-deep-anterior-lamellar-keratoplasty-dalk-in-keratoconus
#10
Friederike Schaub, Philip Enders, Björn O Bachmann, Ludwig M Heindl, Claus Cursiefen
PURPOSE: The purpose was to investigate the impact of ultraviolet light corneal collagen crosslinking (UV-CXL) on the success rate and clinical outcome of subsequent deep anterior lamellar keratoplasty (DALK) in eyes with keratoconus (KC). METHODS: Medical records of 101 consecutive eyes with KC scheduled for big-bubble DALK surgery were screened retrospectively for details of previously performed UV-CXL, as well as intra- and postoperative complications of DALK surgery...
April 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28129297/toxic-anterior-segment-syndrome-inadvertent-administration-of-intracameral-lidocaine-1-and-phenylephrine-2-5-preserved-with-10-benzalkonium-chloride-during-cataract-surgery
#11
Brett P Bielory, Ayesha Shariff, Rehan M Hussain, Jose Antonio Bermudez-Magner, Sander R Dubovy, Kendall E Donaldson
PURPOSE: To report 3 patients with corneal decompensation and anterior uveitis within 24 hours of cataract surgery from a single ambulatory surgery center using intracameral lidocaine HCl 1% and phenylephrine 2.5% inadvertently preserved with 10% benzalkonium chloride. METHODS: This case series describes 3 patients who underwent traditional cataract extraction with a significant decrease in visual acuity in the immediate postoperative period resulting in secondary surgical intervention for corneal decompensation in 2 patients...
May 2017: Cornea
https://www.readbyqxmd.com/read/28124530/cystoscopy-assisted-laparoscopy-for-bladder-endometriosis-modified-light-to-light-technique-for-bladder-preservation
#12
Rafael Mamprin Stopiglia, Ubirajara Ferreira, Daniel Gustavo Faundes, Carlos Alberto Petta
INTRODUCTION: Endometriosis is a disease with causes still unclear, affecting approximately 15% of women of reproductive age, and in 1%-2% of whom it may involve the urinary tract. The bladder is the organ most frequently affected by endometriosis, observed around 85% of the cases. In such cases, the most effective treatment is partial cystectomy, especially via videolaparoscopy. Study Objective, Design, Size and Duration: In order to identify and delimit the extent of the intravesical endometriosis lesion, to determine the resection limits, as well as to perform an optimal reconstruction of the organ aiming for its maximum preservation, we performed a cystoscopy simultaneously with the surgery, employing a modified light-tolight technique in 25 consecutive patients, from September 2006 to May 2012...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27999623/personalized-approach-in-brain-protection-by-hypothermia-individual-changes-in-non-pathological-and-ischemia-related-glutamate-transport-in-brain-nerve-terminals
#13
Artem Pastukhov, Natalia Krisanova, Vitalii Maksymenko, Tatiana Borisova
BACKGROUND: Both deep and profound hypothermia are effectively applied in cardiac surgery of the aortic arch, when the reduction of cerebral circulation facilitates operations, and for the prevention of ischemic stroke consequences. Neurochemical discrimination of the effects of deep and profound hypothermia (27 and 17 °C, respectively) on non-pathological and pathological ischemia-related mechanisms of presynaptic glutamate transport with its potential contribution to predictive, preventive and personalized medicine (PPPM) was performed...
2016: EPMA Journal
https://www.readbyqxmd.com/read/27762645/morphological-features-of-fascia-lata-in-relation-to-fascia-diseases
#14
Sylwia Szotek, Joanna Dawidowicz, Brian Eyden, Natalia Matysiak, Aleksander Czogalla, Grzegorz Dudzik, Anna Leśniewicz, Krzysztof Maksymowicz
Fascia lata is an important element of the fascial system, which forms the continuum of connective tissue throughout the body. This deep fascia envelops the entire thigh and hip area and its main function is to transmit mechanical forces generated by the musculoskeletal system of the lower extremities. Fascia lata is also known as a useful and easily harvested graft material. Despite its crucial role in lower extremity biomechanics and wide-ranging applications in plastic and reconstructive surgery, both the structure of fascia lata and particularly the cells populating this tissue are relatively unexplored and therefore poorly understood...
November 2016: Ultrastructural Pathology
https://www.readbyqxmd.com/read/27638921/periodontal-tissue-regeneration-using-syngeneic-adipose-derived-stromal-cells-in-a-mouse-model
#15
Mathieu Lemaitre, Paul Monsarrat, Vincent Blasco-Baque, Pascale Loubières, Rémy Burcelin, Louis Casteilla, Valérie Planat-Bénard, Philippe Kémoun
: Current treatment of periodontitis is still associated with a high degree of variability in clinical outcomes. Recent advances in regenerative medicine by mesenchymal cells, including adipose stromal cells (ASC) have paved the way to improved periodontal regeneration (PD) but little is known about the biological processes involved. Here, we aimed to use syngeneic ASCs for periodontal regeneration in a new, relevant, bacteria-induced periodontitis model in mice. Periodontal defects were induced in female C57BL6/J mice by oral gavage with periodontal pathogens...
September 16, 2016: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/27634652/revascularisation-pattern-of-ruptured-flexor-tendon-grafts-in-anterior-cruciate-ligament-reconstruction-a-histological-study
#16
COMPARATIVE STUDY
D Figueroa, R Martínez, R Calvo, M Scheu, M Gallegos, A Vaisman, C Martínez, A González
INTRODUCTION: For successful anterior cruciate ligament (ACL) reconstruction, revascularisation and histological maturation are necessary, as their failure can cause graft rupture. PURPOSE: The purpose of this study was to describe differences in the histological maturation of early failed plasty (less than 12 months after surgery) and late failed plasty (more than 12 months after surgery) in patients with re-rupture after ACL reconstruction with hamstring tendons...
November 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/27619664/cystoscopy-assisted-laparoscopy-for-bladder-endometriosis-modified-light-to-light-technique-for-bladder-preservation
#17
Rafael Mamprin Stopiglia, Ubirajara Ferreira, Daniel Gustavo Faundes, Carlos Alberto Petta
INTRODUCTION: Endometriosis is a disease with causes still unclear, affecting approximately 15% of women of reproductive age, and in 1%-2% of whom it may involve the urinary tract. The bladder is the organ most frequently affected by endometriosis, observed around 85% of the cases. In such cases, the most effective treatment is partial cystectomy, especially via videolaparoscopy. Study Objective, Design, Size and Duration: In order to identify and delimit the extent of the intravesical endometriosis lesion, to determine the resection limits, as well as to perform an optimal reconstruction of the organ aiming for its maximum preservation, we performed a cystoscopy simultaneously with the surgery, employing a modified light-tolight technique in 25 consecutive patients, from September 2006 to May 2012...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27618110/deep-brain-stimulation-in-search-of-reliable-instruments-for-assessing-complex-personality-related-changes
#18
Christian Ineichen, Heide Baumann-Vogel, Markus Christen
During the last 25 years, more than 100,000 patients have been treated with Deep Brain Stimulation (DBS). While human clinical and animal preclinical research has shed light on the complex brain-signaling disturbances that underpin e.g., Parkinson's disease (PD), less information is available when it comes to complex psychosocial changes following DBS interventions. In this contribution, we propose to more thoroughly investigate complex personality-related changes following deep brain stimulation through refined and reliable instruments in order to help patients and their relatives in the post-surgery phase...
September 7, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27590038/new-histopathologic-and-ultrastructural-findings-in-reis-b%C3%A3-cklers-corneal-dystrophy-caused-by-the-arg124leu-mutation-of-tgfbi-gene
#19
Wen-Ya Qiu, Li-Bin Zheng, Fei Pan, Bei-Bei Wang, Yu-Feng Yao
BACKGROUND: Reis-Bücklers corneal dystrophy (RBCD) was consistently reported as a corneal dystrophy only affected Bowman's layer and superficial corneal stroma, and superficial keratectomy was a recommendation surgery for treatment in literatures. The study reported new histopathological and ultrastructural findings in RBCD caused by the Arg124Leu mutation of transforming growth factor induced (TGFBI) gene in a four-generation Chinese pedigree. METHODS: Subjects including eight patients and seven unaffected family members received slit-lamp biomicroscopy and photography...
September 2, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27466863/evaluation-of-the-efficacy-and-safety-of-short-course-deep-sedation-therapy-for-the-treatment-of-intracerebral-hemorrhage-after-surgery-a-non-randomized-control-study
#20
Dapeng Hou, Beibei Liu, Juan Zhang, Qiushi Wang, Wei Zheng
BACKGROUND While mild and moderate sedation have been widely used to reduce sudden agitation in intracerebral hemorrhage (ICH) patients after surgery, agitation is still a frequent problem, which may cause postoperative blood pressure fluctuation. The present study aimed to evaluate the efficacy and safety of short-course deep sedation for the treatment of ICH after surgery. MATERIAL AND METHODS A total of 41 ICH patients who received surgery, including traditional craniotomy hematoma removal and decompressive craniectomy, were including in this non-randomized control study...
July 28, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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