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https://www.readbyqxmd.com/read/28449495/laser-resection-of-pulmonary-nodule-via-uniportal-thoracoscopic-surgery
#1
Calvin S H Ng, Freddie Capili, Ze-Rui Zhao, Peter S Y Yu, Jacky Y K Ho, Rainbow W H Lau
Uniportal video-assisted thoracic surgery (VATS) lung wedge resection usually requires three devices, thoracoscope, lung retracting instrument and an endo-stapler cutter to perform the procedure. With advances in miniaturization of the thoracoscope and lung retracting instruments, a major limitation to operating through a smaller uniportal incision has become the endo-stapler. We describe the surgical technique for uniportal VATS laser lung resection which uses a much narrower laser catheter device to replace the endo-stapler for resection...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28445365/improvement-of-flap-necrosis-in-a-rat-random-skin-flap-model-by-in-vivo-electroporation-mediated-hgf-gene-transfer
#2
S Morteza Seyed Jafari, Maziar Shafighi, Helmut Beltraminelli, Thomas Geiser, Robert E Hunger, Amiq Gazdhar
BACKGROUND: Despite great understanding of underlying mechanisms for flap necrosis and advances in surgical techniques, flap necrosis remains a critical issue. In the present study, the authors investigated the efficacy of electroporation-mediated hepatocyte growth factor (HGF) gene delivery to random dorsal skin flaps (McFarlane) to accelerate wound healing and reduce flap necrosis. METHODS: Fifteen male Wistar rats (290 to 320 g) were divided randomly into three groups...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445204/pediatric-refractive-surgery
#3
Erin D Stahl
PURPOSE OF REVIEW: Refractive surgery procedures have been performed on children since the early 1980s. This article will review this history as well as current thoughts on treating children with large refractive errors. RECENT FINDINGS: Pediatric refractive surgery has developed slowly as very few children fit the criteria for treatment. For this reason, practice patterns are varied and publications are rare. Publications in recent years have focused on intraocular procedures over laser refractive surgery...
April 25, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28445203/considerations-for-refractive-surgery-in-the-glaucoma-patient
#4
Meleha Ahmad, Isaac Chocron, Anurag Shrivastava
PURPOSE OF REVIEW: Given the popularity of keratorefractive surgery, and an aging populous of patients who have undergone these procedures, there is an increasing need for updated management protocols. This is particularly relevant for patients with chronic progressive diseases such as glaucoma, due to the variety of related diagnostic and management challenges inherent to these diseases. Here, we will review the current literature to provide an update on the management of patients with glaucoma who are undergoing, or have had laser ablative refractive surgery...
April 25, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28444494/imaging-of-pancreatic-cystic-lesions-with-confocal-laser-endomicroscopy-an-ex-vivo-pilot-study
#5
Abdurrahman Kadayifci, Mustafa Atar, Michelle Yang, Carlos Fernandez-Del Castillo, Mari Mino-Kenudson, William R Brugge
BACKGROUND: The differential diagnosis of pancreatic cystic lesions (PCLs) is an increasingly common clinical challenge. Confocal laser endomicroscopy (CLE) may differentiate PCLs by imaging of the cyst wall. However, clinical experience is still limited, and better image definition and characterization of the cyst wall in a spectrum of cysts are needed. This experimental study aimed to expose detailed imaging characteristics of PCLs by CLE. METHODS: Patients who underwent surgery of a PCL were enrolled...
April 25, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28443721/evaluation-of-surgical-outcomes-with-photoselective-greenlight-xps-laser-vaporization-of-the-prostate-in-high-medical-risk-men-with-benign-prostatic-enlargement-a-multicenter-study
#6
Emad Sabri Rajih, Côme Tholomier, Pierre-Alain Hueber, Abdullah M Alenizi, Roger Valdivieso, Mounsif Azizi, Ricardo R Gonzalez, Greg Eure, Lewis Kriteman, Mahmood A Hai, Kevin Christopher Zorn
Objective To evaluate the safety and short-term outcomes of photoselective vaporization of the prostate using GreenLight XPSTM in treatment of high medical risk men. Methods A multicenter retrospective analysis of 941 men who underwent photoselective vaporization of the prostate between August 2010 and August 2014 was performed. Patients were considered high medical risk if they had an American Society of Anesthesiologists physical status score ≥ 3. Postoperative adverse events, unexpected postoperative medical provider visits after intervention, and functional urinary outcomes were examined...
April 26, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28442697/when-should-we-give-up-filtration-surgery-indications-techniques-and-results-of-cyclodestruction
#7
Marisse Masis Solano, Guofu Huang, Shan C Lin
PURPOSE: Cyclodestructive procedures are traditionally used in cases of glaucoma that are refractory to medical and surgical therapy. The goal of this chapter is to describe the indications, contraindications, techniques, and pitfalls of cyclodestructive procedures, including transscleral cyclophotocoagulation (TCP), micropulse TCP (MP-TCP), endoscopic cyclophotocoagulation (ECP), and ultrasound cilioplasty. METHODS: A literature search for cyclodestructive techniques was performed, and relevant studies were included for evaluation and review...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442691/laser-assisted-techniques-for-penetrating-and-nonpenetrating-glaucoma-surgery
#8
Noa Geffen, Ehud I Assia, Shlomo Melamed
The use of lasers is slowly pervading all subspecialties of ophthalmology, especially glaucoma, and lasers are slowly replacing many glaucoma surgeries. Conventional trabeculectomy has so far remained the gold standard for glaucoma surgery and efforts are being made to develop a new surgical approach to overcome the limited success rate and safety issues of this traditional procedure. There is a great interest in using lasers for ab interno and ab externo penetrating and nonpenetrating filtering surgery. Theoretically, laser-assisted surgery offers the potential advantage of improved accuracy, repeatability, and safety, although the main drawback of using lasers for this purpose is the potential collateral damage induced by the scattered energy...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28437957/widely-wavelength-tunable-gain-switched-er-sup-3-sup-doped-zblan-fiber-laser-around-2-8-%C3%AE-m
#9
Chen Wei, Hongyu Luo, Hongxia Shi, YanJia Lyu, Han Zhang, Yong Liu
In this paper, we demonstrate a wavelength widely tunable gain-switched Er<sup>3+</sup>-doped ZBLAN fiber laser around 2.8 μm. The laser can be tuned over 170 nm (2699 nm~2869.9 nm) for various pump power levels, while maintaining stable μs-level single-pulse gain-switched operation with controllable output pulse duration at a selectable repetition rate. To the best of our knowledge, this is the first wavelength tunable gain-switched fiber laser in the 3 μm spectral region with the broadest tuning range (doubling the record tuning range) of the pulsed fiber lasers around 3 μm...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437193/evaluation-of-the-effects-of-photobiomodulation-on-biomechanical-properties-and-hounsfield-unit-of-partial-osteotomy-healing-in-an-experimental-rat-model-of-type-i-diabetes-and-osteoporosis
#10
Ataroalsadat Mostafavinia, Reza Ahadi, Mohammadamin Abdollahifar, Seyed Kamran Ghorishi, Ali Jalalifirouzkouhi, Mohammad Bayat
BACKGROUND: Pulsed wave (PW) lasers exhibit biostimulatory effects on fractures in healthy and diabetic animals. OBJECTIVE: This study aims to assess the effects of photobiomodulation on bone strength and Hounsfield unit (HU) for repair of a bone defect in an experimental rat model of type I diabetes mellitus (TIDM) and osteoporosis (OP). METHODS: We divided 30 female rats into six groups of n = 5 per group: (1) ovariectomy (OVX) control, (2) OVX + PW laser and no TIDM, (3) OVX control + TIDM, (4) OVX + TIDM + PW laser, (5) OVX + TIDM + alendronate, and (6) OVX + TIDM + PW laser + alendronate...
February 22, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28435084/optimization-of-behavioural-tests-for-the-prediction-of-outcomes-in-mouse-models-of-focal-middle-cerebral-artery-occlusion
#11
Zhuoyu Wen, Xiaomeng Xu, Lili Xu, Lian Yang, Xiaohui Xu, Juehu A Zhu, Li Wu, Yongjun Jiang, Xinfeng Liu
Intraluminal middle cerebral artery occlusion (MCAO) is the most widely used model of stroke. We aimed to predict the outcome of MCAO using a combination of fine behavioural tests for the prediction of unsuccessful surgery in mice leading to no infarction, haemorrhage and unexpected death. MCAO was performed on adult mice under the guidance of laser-Doppler flowmetry (LDF) to warrant a decrease in regional cerebral blood flow (rCBF) in the MCA territory. Four outcomes of MCAO were defined according to histological analysis: infarction, no infarction, haemorrhage and unexpected death (death within 24 h post-surgery)...
April 20, 2017: Brain Research
https://www.readbyqxmd.com/read/28434979/synergistic-effects-of-bmp-2-bmp-6-or-bmp-7-with-human-plasma-fibronectin-onto-hydroxyapatite-coatings-a-comparative-study
#12
Isabelle Brigaud, Rémy Agniel, Johanne Leroy Dudal, Sabrina Kellouche, Arnaud Ponche, Tahar Bouceba, Natalia Mihailescu, Mihai Sopronyi, Eric Viguier, Carmen Ristoscu, Felix Sima, Ion N Mihailescu, Ana Claudia O Carreira, Mari Cleide Sogayar, Olivier Gallet, Karine Anselme
Design of new osteoinductive biomaterials to reproduce an optimized physiological environment capable of recruiting stem cells and instructing their fate towards the osteoblastic lineage has become a priority in orthopedic surgery. This work aims at evaluating the bioactivity of BMP combined with human plasma fibronectin (FN/BMP) delivered in solution or coated onto titanium-hydroxyapatite (TiHA) surfaces. Herein, we focus on the comparison of in vitro osteogenic efficacy in mouse C2C12 pre-osteoblasts of three BMP members, namely: BMP-2, BMP-6 and BMP-7...
April 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28434005/chorioamniotic-membrane-separation-after-fetoscopic-laser-photocoagulation
#13
Mayumi Takano, Masahiko Nakata, Susumu Murata, Masahiro Sumie, Mineto Morita
INTRODUCTION: This study aimed to investigate the risk factors, incidence, and influence on the perinatal outcome of chorioamniotic membrane separation (CMS) after fetoscopic laser photocoagulation (FLP). MATERIAL AND METHODS: This retrospective study included 312 women who underwent FLP for twin-to-twin transfusion syndrome (TTTS). Clinical records were used to review obstetrical examinations, complications, operative data, ultrasonographic findings, and perinatal and neonatal follow-up data in all patients...
April 22, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28432073/in-situ-laser-fenestration-is-a-feasible-method-for-revascularization-of-aortic-arch-during-thoracic-endovascular-aortic-repair
#14
Jinbao Qin, Zhen Zhao, Ruihua Wang, Kaichuang Ye, Weimin Li, Xiaobing Liu, Guang Liu, Chaoyi Cui, Huihua Shi, Zhiyou Peng, Fukang Yuan, Xinrui Yang, Min Lu, Xintian Huang, Mier Jiang, Xin Wang, Minyi Yin, Xinwu Lu
BACKGROUND: Reconstruction of the aortic major branches during thoracic endovascular aortic repair is complicated because of the complex anatomic configuration and variation of the aortic arch. In situ laser fenestration has shown great potential for the revascularization of aortic branches. This study aims to evaluate the feasibility, effectiveness, and safety of in situ laser fenestration on the three branches of the aortic arch during thoracic endovascular aortic repair. METHODS AND RESULTS: Before clinical application, the polytetrafluoroethylene and Dacron grafts were fenestrated by an 810-nm laser system ex vivo, which did not damage the bare metal portion of the endografts and created a clean fenestration while maintaining the integrity of the endografts...
April 21, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28429193/effect-of-non-coherent-infrared-light-led-%C3%AE-945%C3%A2-%C3%A2-%C3%A2-20%C3%A2-nm-on-bone-repair-in-diabetic-rats-morphometric-and-spectral-analyses
#15
Alexandre Greca Diamantino, Renata Amadei Nicolau, Davidson Ribeiro Costa, Alessandra Paes de Barros Almeida, Danila Xênia de Miranda Mato, Marco Antonio de Oliveira, Ana Maria do Espírito Santo
Phototherapy using coherent light (lasers) and non-coherent light (light-emitting diodes (LEDs)) has been investigated for the purpose of biomodulation in biological tissues. Several effects can be expected, including pain moderation, biostimulation of cellular tropism, anti-inflammatory effects, regular circulatory stimulation, and tissue repair. The aim of this study was to evaluate the effect of LED (λ945 ± 20 nm, 48 mW) therapy on the regeneration process in femoral lesions of rats (Wistar). Seven irradiation sessions were held, with a 48-h interval between sessions...
April 20, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28428923/the-long-term-outcome-of-the-management-of-the-posterior-capsule-in-pseudophakic-children
#16
Malcolm R Ing
This is a long term study of the treatment of the posterior lens capsule in the management of bilateral cataract extraction and insertion of 42 intraocular lenses in 21 children. The purpose of the current study was to compare the long-term outcome of eyes treated by the two different methods of surgery of the posterior lens capsule in bilateral cataract and intraocular lens implantation in children. The author performed an independent ocular exam on the children selected from a consecutive series at 4 different institutions, followed for a minimum of 5 years...
April 2017: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/28428827/fundamental-research-on-the-action-mechanism-of-the-800-nm-semiconductor-laser-on-skin-blackheads-and-coarse-pores
#17
Jie Lin, Li Jing, Hao Zhu, Fu-Sheng Dong
The aim of the study was to determine the mechanism of action of the 800 nm semiconductor laser on skin blackheads and coarse pores. A total of 24 healthy purebred short-haired male guinea pigs, weighing 350-400 g, were selected and smeared with 0.5 ml coal tar suspension evenly by injector once daily. Treatment was continued for 14 days to form an experimental area of 8×3 cm on the back of the guinea pigs. The animals were divided into the following groups: Normal control group (NC), low-dose laser treatment group (L-LS), high-dose laser treatment group (H-LS), and Q-switched Nd:YAG treatment group (QC)...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28427073/surgical-management-and-techniques
#18
Marco Codenotti, Lorenzo Iuliano, Gisella Maestranzi
Technical advancements have substantially extended the indications for surgery in diabetic retinopathy (DR) during the last 40 years, from the traditional indications including non-clearing vitreous hemorrhage, traction retinal detachment (RD), and traction-rhegmatogenous RD, to epiretinal membrane (ERM), vitreomacular traction, diffuse macular edema, neovascular glaucoma, and anterior hyaloid fibrovascular proliferation. The goals of vitreoretinal surgery in DR are multiple: clearing media opacities, release of traction (anteroposterior and/or tangential), segmentation and/or removal of traction bands, peeling of ERMs, hemostasis, laser photocoagulation, and tamponade of retinal breaks with gas or silicone oil...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28427069/practical-lessons-from-protocol-i-for-the-management-of-diabetic-macular-edema
#19
Lekha Mukkamala, Neelakshi Bhagat, Marco A Zarbin
Protocol I, a multicenter randomized clinical trial, compared the visual outcomes of patients treated with 0.5 mg intravitreal ranibizumab with either prompt or deferred (by 24 weeks laser), 4 mg intravitreal triamcinolone with prompt laser, or sham injection with prompt laser for the treatment of center-involving diabetic macular edema (DME). A total of 854 adult patients with type I or II diabetes and any level of non-proliferative diabetic retinopathy or proliferative retinopathy with adequate panretinal photocoagulation, with best-corrected visual acuity (BCVA) of 78 to 24 ETDRS letters (Snellen equivalent of 20/32 to 20/320) and visual loss attributed to macular edema, or retinal thickening with central subfield thickness of at least 250 µm by OCT were enrolled...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28427068/intravitreal-steroids-in-diabetic-macular-edema
#20
Rosangela Lattanzio, Maria Vittoria Cicinelli, Francesco Bandello
Over the past decade, great strides have been made in the management of diabetic macular edema (DME). Therapeutic alternatives now include focal/grid laser photocoagulation, vitreo-retinal surgery, and intraocular injection of anti-angiogenic and steroid molecules. Intravitreal administration of steroids represents a fundamental alternative for recalcitrant and naive eyes with DME, especially in those cases when anti-vascular endothelial growth factor (VEGF) agents are contraindicated or a treatment regimen with fewer intravitreal injections is required...
2017: Developments in Ophthalmology
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