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https://www.readbyqxmd.com/read/28101947/combined-surgical-therapy-of-advanced-peri-implantitis-evaluating-two-methods-of-surface-decontamination-a-7-year-follow-up-observation
#1
Frank Schwarz, Gordon John, Andrea Schmucker, Narja Sahm, Jürgen Becker
OBJECTIVES: To assess the long-term outcomes (>4 years) following combined surgical resective/regenerative therapy of advanced peri-implantitis lesions using two surface decontamination methods. MATERIAL & METHODS: Fifteen patients (n = 15 combined supra- and intrabony defects) completed a follow-up observation period of 7 years. The treatment procedure included access flap surgery, granulation tissue removal and implantoplasty at buccally and supracrestally exposed implant parts, and a randomly assigned decontamination of the unmodified intrabony implant surface areas using either (i) an Er:YAG laser (ERL) or (ii) plastic curettes + cotton pellets + sterile saline (CPS)...
November 7, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28101654/cell-viability-and-shock-wave-amplitudes-in-the-endothelium-of-porcine-cornea-exposed-to-ultrashort-laser-pulses
#2
Syed Asad Hussain, Carles Milián, Caroline Crotti, Laura Kowalczuk, Fatima Alahyane, Zacaria Essaïdi, Arnaud Couairon, Marie-Claire Schanne-Klein, Karsten Plamann
PURPOSE: Some forms of keratoplasty assisted by ultrashort-pulse lasers require performing laser cuts close to the endothelium, which requires the knowledge of "safe" values concerning incision depth and pulse energy preserving endothelial cell viability. Our study aims to determine the thresholds for cell death in porcine corneas exposed to ultrashort laser pulses, in terms of laser pulse energy and nearness of the impacts to the endothelium. METHODS: Using a laboratory laser set-up, lamellar cuts were induced while varying pulse energies and distances from the endothelium...
January 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28101404/model-for-indirect-laser-surgery
#3
Natalia Sapogova, Vladimir Bredikhin, Nikita Bityurin, Vladislav Kamensky, Vjacheslav Zhigarcov, Vladimir Yusupov
We present a theoretical model for laser cutting of biological tissue by a strongly heated fiber tip with a highly absorbing coating. A significant dependence of the cutting speed and cutting depth on the inclination angle of the scalpel to the surface when scattering exceeds absorption in the biological tissue is shown. Experimental evidences of this effect are presented. In the experiment, we used silica fiber with coating made of carbon and silicon organic varnish, the 0.97-µm wavelength laser and porcine skin...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28101042/use-of-internal-limiting-membrane-autograft-in-primary-vitrectomy-for-rhegmatogenous-retinal-detachment
#4
Sergio Eustolio Hernández-Da Mota, Jorge Francisco Béjar-Cornejo
During a pars plana vitrectomy, an unplanned retinotomy in the raphe was performed in a 55-year-old female patient with rhegmatogenous retinal detachment and proliferative vitreoretinopathy. Since diathermy and laser therapy were not available at that moment, it was decided to peel off a small graft of the internal limiting membrane adjacent to the retinotomy site which had been previously stained with Brilliant Blue G. The graft was displaced under perfluorocarbon fluids and placed inside the retinotomy. Three weeks after surgery, the apparent closure of the retinotomy was observed clinically...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28101040/high-rate-of-early-posterior-capsule-opacification-following-femtosecond-laser-assisted-cataract-surgery
#5
Benjamin Rostami, Jack Tian, Nicholas Jackson, Rustum Karanjia, Kenneth Lu
PURPOSE: To compare the rates of rapid posterior capsule opacification (PCO) formation in the first 3 months following femtosecond laser-assisted cataract surgery (FLACS) to manual anterior capsulorhexis. METHODS: Retrospective review of 29 cases of FLACS, comparing the rates of PCO in the first 3 months following surgery to 50 consecutive cases of manual anterior capsulorhexis. RESULTS: Seven of the 29 FLACS cases developed PCO requiring capsulotomy at 3 months, while none of the control cases required a capsulotomy over the same time period (p < 0...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28101037/successful-restoration-of-visual-acuity-with-an-extended-range-of-vision-intraocular-lens-after-multifocal-laser-ablation
#6
Sondra Black
As our baby boomer population is aging and developing cataracts, so are our post-LASIK patients. These patients underwent LASIK surgery as they wished to be spectacle-free and are hoping to remain so after intraocular lens (IOL) surgery. Unfortunately, very little information is available regarding the suitability of presbyopia correcting IOLs for post-LASIK patients. This case represents successful implantation of an extended range of vision IOL in a 59-year-old patient who underwent multifocal ablation excimer laser surgery 12 years before...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28099283/the-characteristics-of-excimer-laser-refractive-surgery-candidates
#7
Hassan Hashemi, Mehdi Khabazkhoob, Reza Pakzad, Abbasali Yekta, Marzieh Nojomi, Payam Nabovati
PURPOSE: To determine the demographic and refractive characteristics of excimer laser refractive surgery candidates in Iran. METHODS: This was a cross-sectional study between 2010 and 2014. All information was collected from 28 centers randomly selected from 12 provinces. Then, for each season of the year, one week was chosen through simple random selection, and within each week, 3 days were again chosen randomly. All excimer laser surgical procedures performed during these 3 days were identified by training staff, and data were extracted from patient charts...
January 17, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28096104/recent-developments-in-the-surgical-management-of-paediatric-epilepsy
#8
REVIEW
Vijay M Ravindra, Matthew T Sweney, Robert J Bollo
Among the 1% of children affected by epilepsy, failure of pharmacological therapy and early age of seizure onset can lead to worse long-term cognitive outcomes, mental health disorders and impaired functional status. Surgical management often improves functional and cognitive outcomes in children with medically refractory epilepsy, especially when seizure remission is achieved. However, surgery remains underused in children with drug-resistant epilepsy, creating a large treatment gap. Several recent innovations have led to considerable improvement in surgical technique, including the recent development of minimally invasive diagnostic and therapeutic techniques such as stereotactic EEG, transcranial magnetic stimulation, MRI-guided laser ablation, as well as novel paradigms of neurostimulation...
January 17, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28095867/effects-of-ablation-depth-and-repair-time-on-the-corneal-elastic-modulus-after-laser-in-situ-keratomileusis
#9
Xiaojun Wang, Xiaona Li, Weiyi Chen, Rui He, Zhipeng Gao, Pengfei Feng
BACKGROUND: The biomechanical properties of the cornea should be taken into account in the refractive procedure in order to perform refractive surgery more accurately. The effects of the ablation depth and repair time on the elastic modulus of the rabbit cornea after laser in situ keratomileusis (LASIK) are still unclear. METHODS: In this study, LASIK was performed on New Zealand rabbits with different ablation depth (only typical LASIK flaps were created; residual stroma bed was 50 or 30% of the whole cornea thickness respectively)...
January 17, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28095557/the-photodynamic-therapy-experience-of-a-high-volume-laser-and-dermatologic-surgery-center
#10
David E Orbuch, Lauren Penn, Bradley S Bloom, Jeremy A Brauer, Daniel B Shin, Joshua Greenbaum, Leonard J Bernstein, Elliot T Weiss, Robert T Anolik, Roy G Geronemus
BACKGROUND: Photodynamic therapy (PDT) is an FDA approved treatment for actinic keratoses (AK's) although multiple off-label indi- cations are reported. Despite frequent use for AK's, no clear consensus exists regarding protocols for overall treatment parameters. METHODS: Retrospective chart review of 1,491 subjects who underwent PDT between 2007 and 2011 at a high volume laser surgery center. Demographic information, clinical history, treatment data, and subsequent diagnosis of skin cancers were recorded...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095541/safety-and-efficacy-evaluation-of-pulsed-dye-laser-treatment-co-sub-2-sub-ablative-fractional-resurfacing-and-combined-treatment-for-surgical-scar-clearance
#11
Joel L Cohen, Roy Geronemus
BACKGROUND & OBJECTIVE: Surgical scars are an unwanted sequela following surgical procedures. Several different treatment modalities and approaches are currently being employed to improve the cosmesis of surgical scars with each having varying degrees of success. The objective of this study was to assess the ef cacy and safety pulsed dye laser treatment, CO2 ablative fractional resurfacing, and a combined treatment with these two modalities for the cosmetic improvement of surgical scarring that occurred following the surgical removal of skin cancer from different anatomic areas...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28094014/a-new-methodology-for-assessment-of-pectus-excavatum-correction-after-bar-removal-in-nuss-procedure-preliminary-study
#12
João Gomes-Fonseca, João L Vilaça, Tiago Henriques-Coelho, Bruno Direito-Santos, António C M Pinho, Jaime C Fonseca, Jorge Correia-Pinto
PURPOSE: The objective is to present a new methodology to assess quantitatively the impact of bar removal on the anterior chest wall, among patients with pectus excavatum who have undergone the Nuss procedure, and present a preliminary study using this methodology. METHODS: We propose to acquire, for each patient, the surface of the anterior chest wall using a three-dimensional laser scanner at subsequent time points (short term: before and after surgery; long term: follow-up visit, 6months, and 12months after surgery)...
January 7, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28090508/laser-applications-in-surgery
#13
REVIEW
Beina Azadgoli, Regina Y Baker
In modern medicine, lasers are increasingly utilized for treatment of a variety of pathologies as interest in less invasive treatment modalities intensifies. The physics behind lasers allows the same basic principles to be applied to a multitude of tissue types using slight modifications of the system. Multiple laser systems have been studied within each field of medicine. The term "laser" was combined with "surgery," "ablation," "lithotripsy," "cancer treatment," "tumor ablation," "dermatology," "skin rejuvenation," "lipolysis," "cardiology," "atrial fibrillation (AF)," and "epilepsy" during separate searches in the PubMed database...
December 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28089779/percutaneous-coronary-intervention-of-chronically-occluded-saphenous-vein-grafts-using-excimer-laser-atherectomy-as-an-adjuvant-therapy
#14
Mohsen Mohandes, Sergio Rojas, Mauricio Torres, Cristina Moreno, Francisco Fernández, Jordi Guarinos, Alfredo Bardají
We present two cases with chronic total occlusion of the saphenous vein graft in two patients with a history of previous bypass surgery with unfavorable anatomic features for recanalization of the native coronary artery. In the first case, two dedicated attempts for recanalization of chronic total occlusion of the native artery failed and in the second case there was not an adequate visualization of the native vessel beyond the occlusion point, not even by contralateral injection. Excimer laser atherectomy was used in both cases as an adjuvant therapy during recanalization of the saphenous vein graft in combination with a distal protection device in order to reduce distal embolization...
December 27, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28087548/early-lens-extraction-with-intraocular-lens-implantation-for-the-treatment-of-primary-angle-closure-glaucoma-an-economic-evaluation-based-on-data-from-the-eagle-trial
#15
Mehdi Javanbakht, Augusto Azuara-Blanco, Jennifer M Burr, Craig Ramsay, David Cooper, Claire Cochran, John Norrie, Graham Scotland
OBJECTIVE: To investigate the cost-effectiveness of early lens extraction with intraocular lens implantation for the treatment of primary angle closure glaucoma (PACG) compared to standard care. DESIGN: Cost-effectiveness analysis alongside a multicentre pragmatic two-arm randomised controlled trial. Patients were followed-up for 36 months, and data on health service usage and health state utility were collected and analysed within the trial time horizon. A Markov model was developed to extrapolate the results over a 5-year and 10-year time horizon...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28087281/mtuepa-trans-urethral-monopolar-enucleation-of-prostatic-adenoma-preliminary-report
#16
Vito Pansadoro, Paolo Emiliozzi, Gianluca Del Vecchio, Marco Martini, Paolo Scarpone, Francesco Del Giudice, Domenico Veneziano, Aldo Brassetti, Christophe Assenmacher
OBJECTIVES: To describe preliminary results of our monopolar Transurethral Enucleation of Prostatic Adenoma (mTUEPA). METHODS: A consecutive series of patient treated with mTUEPA, a retrograde enucleation of the prostatic adenoma performed by means of a standard monopolar resectoscope, were prospectively enrolled. Symptoms, uroflometry parmeters and post voiding residual (PVR) were assessed at baseline and 1, 6 and 12 months post-operatively. Prostate volume (PV) was evaluated at baseline by means of transrectal ultrasound...
January 10, 2017: Urology
https://www.readbyqxmd.com/read/28077370/preoperative-aqueous-humour-flare-values-do-not-predict-proliferative-vitreoretinopathy-in-patients-with-rhegmatogenous-retinal-detachment
#17
Verena C Mulder, Jan Tode, Elon Hc van Dijk, Konstantine Purtskhvanidze, Johann Roider, Jan C van Meurs, Felix Treumer
BACKGROUND/AIMS: Patients with rhegmatogenous retinal detachment (RRD) who develop postoperative proliferative vitreoretinopathy (PVR) have been found to have higher preoperative laser flare values than patients with RRD who do not develop this complication. Measurement of laser flare has therefore been proposed as an objective, rapid and non-invasive method for identifying high-risk patients. The purpose of our study was to validate the use of preoperative flare values as a predictor of PVR risk in two additional patient cohorts, and to confirm the sensitivity and specificity of this method for identifying high-risk patients...
January 11, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28076575/selective-laser-trabeculoplasty-as-an-initial-treatment-option-for-open-angle-glaucoma
#18
Ana Lúcia Freitas, Michele Ushida, Izabela Almeida, Diego T Dias, Syril Dorairaj, Fábio Nishimura Kanadani, Tiago Santos Prata
Although eye drops are frequently used as an initial treatment option for open angle glaucoma (OAG), side effects, and poor adherence, among others, may compromise treatment efficacy. In this scenario, laser trabeculoplasty is an interesting therapeutic option for open angle glaucoma cases. Commonly used for many years as a last alternative prior to glaucoma incisional surgery, laser trabeculoplasty has been changing its indication after the advent of selective laser trabeculoplasty (SLT). In the current review, we critically evaluated the published data regarding the use of laser trabeculoplasty as a first treatment option for open angle glaucoma patients...
November 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28076498/the-efficacy-of-low-level-940-nm-laser-therapy-with-different-energy-intensities-on-bone-healing
#19
Kerem Turgut Atasoy, Yavuz Tolga Korkmaz, Ersan Odaci, Hatice Hanci
The aim of this study was to evaluate the efficacy of low-level 940 nm laser therapy with energy intensities of 5, 10 and 20 J/cm2 on bone healing in an animal model. A total of 48 female adult Wistar rats underwent surgery to create bone defects in the right tibias. Low-level laser therapy (LLLT) was applied immediately after surgery and on post-operative days 2, 4, 6, 8, 10 and 12 in three study groups with energy intensities of 5 J/cm2, 10 J/cm2 and 20 J/cm2 using a 940 nm Gallium-Aluminium-Arsenide (Ga-Al-As) laser, while one control group underwent only the tibia defect surgery...
January 5, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28075022/the-mechanistic-basis-for-photobiomodulation-therapy-of-neuropathic-pain-by-near-infrared-laser-light
#20
Vanessa Milanesi Holanda, Maria Cristina Chavantes, Xingjia Wu, Juanita J Anders
BACKGROUND AND OBJECTIVE: Various irradiances have been reported to be beneficial for the treatment of neuropathic pain with near infrared light. However, the mechanistic basis for the beneficial outcomes may vary based on the level of irradiance or fluence rate used. Using in vivo and in vitro experimental models, this study determined the mechanistic basis of photobiomodulation therapy (PBMT) for the treatment of neuropathic pain using a high irradiance. STUDY DESIGN/MATERIALS AND METHODS: In vitro experiments: Cultured, rat DRG were randomly assigned to control or laser treatment (LT) groups with different irradiation times (2, 5, 30, 60, or 120 seconds)...
January 11, 2017: Lasers in Surgery and Medicine
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