keyword
MENU ▼
Read by QxMD icon Read
search

Micropulse

keyword
https://www.readbyqxmd.com/read/29780953/micropulse-laser-for-persistent-optic-disc-pit-maculopathy-a-case-report
#1
Carlos Andrés Valdés-Lara, Nicolás Crim, Gerardo García-Aguirre, Ismael Ávila Lule, Virgilio Morales-Cantón
Purpose: Optic disc pits (ODP) are rare and congenital anomalies of the optic disc, sometimes remaining asymptomatic. However, serous macular detachment or optic disc maculopathy is the most common complication, causing significant visual deterioration, without a current consensus about treatment. We describe a case of ODP maculopathy that was treated successfully with micropulse laser. Observations: A patient with ODP maculopathy remained with macular serous detachment after nine months of follow up after pars plana vitrectomy...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29776672/half-dose-photodynamic-therapy-versus-high-density-subthreshold-micropulse-laser-treatment-in-patients-with-chronic-central-serous-chorioretinopathy-the-place-trial
#2
Elon H C van Dijk, Sascha Fauser, Myrte B Breukink, Rocio Blanco-Garavito, Joannes M M Groenewoud, Jan E E Keunen, Petrus J H Peters, Greet Dijkman, Eric H Souied, Robert E MacLaren, Giuseppe Querques, Susan M Downes, Carel B Hoyng, Camiel J F Boon
PURPOSE: To compare the anatomic and functional efficacy and safety of half-dose photodynamic therapy (PDT) versus high-density subthreshold micropulse laser (HSML) treatment in patients with chronic central serous chorioretinopathy (cCSC). DESIGN: Open-label, multicenter, randomized controlled clinical trial. PARTICIPANTS: Patients with cCSC whose disease had to be confirmed by both clinical characteristics and findings on multimodal imaging...
May 15, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29696993/comparison-of-ranibizumab-and-subthreshold-micropulse-laser-in-treatment-of-macular-edema-secondary-to-branch-retinal-vein-occlusion
#3
Yelda Buyru Özkurt, Sezen Akkaya, Sibel Aksoy, Mert Hakan Şimşek
PURPOSE: To compare the effects of intravitreal ranibizumab injection and yellow (577 nm) subthreshold micropulse laser treatment in patients with macular edema following non-ischemic branch retinal vein occlusion. METHODS: The medical records of 51 patients who underwent intravitreal ranibizumab (0.5 mg) injection or subthreshold micropulse laser for the treatment of macular edema due to branch retinal vein occlusion were retrospectively reviewed. Subthreshold micropulse laser was administered with a 10% duty cycle, 100 μm spot diameter, 200 ms exposure time...
April 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29689025/combination-therapy-of-intravitreal-ranibizumab-and-subthreshold-micropulse-photocoagulation-for-macular-edema-secondary-to-branch-retinal-vein-occlusion-6-month-result
#4
Hiroko Terashima, Hiruma Hasebe, Fumiki Okamoto, Naoki Matsuoka, Yayoi Sato, Takeo Fukuchi
PURPOSE: To determine the efficacy of the combination therapy of intravitreal ranibizumab (IVR) and 577-nm yellow laser subthreshold micropulse laser photocoagulation (SMLP) for macular edema secondary to branch retinal vein occlusion cystoid macular edema. METHODS: Retrospective, consecutive, case-control study. Forty-six eyes of 46 patients with treatment-naive branch retinal vein occlusion cystoid macular edema were enrolled. The IVR + SMLP group consisted of 22 patients who had undergone both SMLP and IVR...
April 23, 2018: Retina
https://www.readbyqxmd.com/read/29521718/clinical-efficacy-and-safety-profile-of-micropulse-transscleral-cyclophotocoagulation-in-refractory-glaucoma
#5
Alice L Williams, Marlene R Moster, Kamran Rahmatnejad, Arthur F Resende, Teresa Horan, Michael Reynolds, Edward Yung, Benjamin Abramowitz, Sarah Kuchar, Michael Waisbourd
PURPOSE: To investigate the clinical efficacy and safety profile of micropulse transscleral cyclophotocoagulation (MP-CPC) in patients with refractory glaucoma. MATERIALS AND METHODS: Retrospective case series of 79 consecutive patients who underwent MP-CPC at the Wills Eye Hospital from March 23, 2014 to June 23, 2016 and who had at least 3 months of follow-up. Treatment success was defined as an intraocular pressure (IOP) of 6 to 21 mm Hg or a reduction of IOP by 20%...
May 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29450382/iridex-micropulse-p3-innovative-cyclophotocoagulation
#6
M Monica Gavris, Ioana Olteanu, Erzsebet Kantor, Radu Mateescu, Roxana Belicioiu
Purpose: To present the new IRIDEX MicroPulse P3 (MP3) technology in patients with refractory glaucoma and our preliminary results at 1 week and 1 month postoperatively. Methods: IRIDEX MP3 laser cyclophotocoagulation was performed in 7 eyes of 7 patients under retrobulbar anaesthesia with lidocaine 2% in the operating room. Each eye received two treatments of 80-90s over the superior and inferior hemisphere, avoiding the temporal- and nasal-most clock hours. 810nm IRIDEX MP3 was set to 31,3% duty cycle (0,5ms treatment pulse followed by 1,1 ms of rest)...
April 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29449615/improved-retinal-and-visual-function-following-panmacular-subthreshold-diode-micropulse-laser-for-retinitis-pigmentosa
#7
Jeffrey K Luttrull
OBJECTIVES: To examine the effect of subthreshold diode micropulse laser (SDM) on pattern electroretinography (PERG) and visual function in retinitis pigmentosa (RP). METHODS: The records of all patients (pts) undergoing SDM in a vitreoretinal subspecialty practice were reviewed. Inclusion criteria included the presence of RP evaluated before and after SDM by PERG. As a secondary outcome measure, the results of automated omnifield resolution perimetry (ORP) were also reviewed...
February 16, 2018: Eye
https://www.readbyqxmd.com/read/29439089/yellow-577-nm-micropulse-laser-versus-half-dose-verteporfin-photodynamic-therapy-in-eyes-with-chronic-central-serous-chorioretinopathy-results-of-the-pan-american-collaborative-retina-study-pacores-group
#8
Jose A Roca, Lihteh Wu, Jans Fromow-Guerra, Francisco J Rodríguez, Maria H Berrocal, Sergio Rojas, Luiz H Lima, Roberto Gallego-Pinazo, Jay Chhablani, J Fernando Arevalo, David Lozano-Rechy, Martin Serrano
PURPOSE: To compare the functional and anatomical outcomes of eyes with chronic central serous chorioretinopathy treated with yellow micropulse (MP) laser versus half-dose verteporfin photodynamic therapy (PDT). METHODS: This is a multicentre, retrospective comparative study of 92 eyes treated with yellow MP laser (duty cycle of 5%, zero spacing between spots, spot size varied from 100 to 200 µm, power varied from 320 to 660 mW, and the pulse burst duration was 200 ms) and 67 eyes treated with PDT (half-dose verteporfin (3 mg/m2 ) infused over 10 min), followed by laser activation for 83 s...
February 8, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29419644/laser-management-of-glaucoma-in-exfoliation-syndrome
#9
Simrenjeet Sandhu, Karim F Damji
Argon laser trabeculoplasty as well as selective laser trabeculoplasty can be used in patients with exfoliation syndrome with similar safety and efficacy. However, treatment effect may abruptly reverse and patients need to be followed regularly to monitor IOP control. Newer laser treatment modalities including micropulse laser trabeculoplasty, titanium sapphire laser trabeculoplasty and pattern scanning trabeculoplasty show promising results but need to be studied in exfoliation patients. For exfoliation patients with angle closure, peripheral iridectomy, iridoplasty or cataract extraction can be very helpful...
February 6, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29403591/evolution-of-cyclophotocoagulation
#10
REVIEW
Jideofor K Ndulue, Kamran Rahmatnejad, Carina Sanvicente, Sheryl S Wizov, Marlene R Moster
Cyclodestructive techniques have been a treatment option for refractory glaucoma since its first use in the 1930s. Over the past nine decades, cyclodestruction has advanced from the initial cyclodiathermy to micropulse transscleral cyclophotocoagulation (MP-TSCPC) which is the current treatment available. Complications associated with cyclodestruction including pain, hyphema, vision loss, hypotony and phthisis have led ophthalmologists to shy away from these techniques when other glaucoma treatment options are available...
January 2018: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29401159/late-spontaneous-dislocation-of-an-ab-interno-gelatin-microstent
#11
Erin A Boese, Manjool Shah
PURPOSE: To report a case of spontaneous dislocation of a gelatin microstent 6 months after the initial uncomplicated surgery. PATIENTS AND METHODS: We describe a 73-year-old man with a history of advanced primary open-angle glaucoma who had previously undergone an unsuccessful micropulse transcleral cyclophotocoagulation of the left eye. He underwent an uncomplicated combined phacoemulsification with an ab interno gelatin microstent, but was noted to have a spontaneous dislocation of the microstent 6 months postoperatively...
April 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29303148/visual-outcomes-and-anatomic-changes-after-sub-threshold-micropulse-yellow-laser-577-nm-treatment-for-chronic-central-serous-chorioretinopathy-long-term-follow-up
#12
A Arsan, H S Kanar, A Sonmez
PurposeTo analyze the long-term efficacy of 577 nm sub-threshold micropulse yellow laser (SMYL) in the treatment of chronic central serous chorioretinopathy (CCSC) and to evaluate the anatomic outcome, visual results and safety profile of the treatment.Patients and methodsThis prospective study assessed 39 eyes of 39 patients with non-resolving CCSC lasting more than three months. All eyes were treated by using 577 nm SMYL system with 5% duty cycle (DC) and each patients was monitored monthly. The main outcome measures were best-corrected visual acuity (BCVA), contrast sensitivity (CS) and subretinal fluid (SRF) height, central macular thickness (CMT), central macular volume (CMV), total macular volume (TMV), and subfoveal choroidal thickness (SFCT) measured by spectral domain optical coherence tomography (SD-OCT)...
January 5, 2018: Eye
https://www.readbyqxmd.com/read/29231622/-development-and-application-of-new-type-digital-electric-plum-blossom-needle-instrument
#13
Ming Xu, Guilan Huang, Hong Zhang, Xiuting Yin, Jian Zhang, Yuqi Chen, Yong Peng, Mingxuan Zhang
A new-type digital electric plum-blossom needle instrument of controllable and adjustable parameters was developed to achieve an automatic tapping instead of manual tapping technique and integrate the function of plum-blossom needle with that of micropulse electrical phase. The alternating current of periodic variation changes the direction of magnetic field around, induces the vibration of the cone head and tapping movement, outputs the micropulse current and acts on the affected area in treatment. The new-type digital electric plum-blossom needle instrument achieves the automatic tapping movement, precisely adjusts the stimulating strength and frequency according to diseases and integrates the tapping stimulation with pulse current to form circulation loop on the skin and intensify the therapeutic effects...
May 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29221100/automated-detection-of-cloud-and-aerosol-features-with-sacol-micro-pulse-lidar-in-northwest-china
#14
Hailing Xie, Tian Zhou, Qiang Fu, Jianping Huang, Zhongwei Huang, Jianrong Bi, Jinsen Shi, Beidou Zhang, Jinming Ge
The detection of cloud and aerosols using a modified retrieval algorithm solely for a ground-based micropulse lidar (MPL) is presented, based on one-year data at the Semi-Arid Climate Observatory and Laboratory (SACOL) site (35.57°N, 104.08°E, 1965.8 m), northwest of China, from March 2011 to February 2012. The work not only identifies atmosphere particle layers by means of the range-dependent thresholds based on elastic scattering ratio and depolarization ratio, but also discriminates the detected layers by combining empirical thresholds of the atmosphere's thermodynamics states and scattering properties and continuous wavelet transform (CWT) analyses...
November 27, 2017: Optics Express
https://www.readbyqxmd.com/read/29091878/subthreshold-diode-micropulse-laser-versus-conventional-laser-photocoagulation-monotherapy-or-combined-with-anti-vegf-therapy-for-diabetic-macular-edema-a-bayesian-network-meta-analysis
#15
REVIEW
Ying Wu, Pu Ai, Zisheng Ai, Guotong Xu
AIMS: To assess the effects of laser photocoagulation as monotherapy or adjuvant therapy for the treatment of DME. METHODS: A search of the Cochrane Library, Pubmed, Embase, and the clinicaltrial.gov registry for randomized clinical trials comparing any two treatments of interest (SDMLP monotherapy, CLP monotherapy, CLP plus anti-VEGF therapy) was performed. Data were collected and pooled by Bayesian network meta-analyses which accounts for both direct and indirect comparisons...
January 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29047749/lidar-equation-inversion-methods-and-uncertainties-in-measuring-fugitive-particulate-matter-emission-factors
#16
Wangki Yuen, Qi Ma, Sotiria Koloutsou-Vakakis, Ke Du, Mark J Rood
Measurements from two field campaigns that employed a micropulse lidar are used to compare the near-end and the far-end lidar equation inversion methods for estimating emission factors (EFs) of particulate matter (PM) from three types of anthropogenic fugitive sources: vehicles moving on unpaved roads, open burning, and open detonation. As optical depth increased from 0 to 2, relative EF uncertainty increased from 54% to 300% using the near-end method and decreased from 69% to 42% using the far-end method. To the best of our knowledge, this research is the first to use field measurements to compare results from these methods for anthropogenic PM plumes and quantify their uncertainties...
September 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29041575/estimation-of-the-turbulence-energy-dissipation-rate-in-the-atmospheric-boundary-layer-from-measurements-of-the-radial-wind-velocity-by-micropulse-coherent-doppler-lidar
#17
V A Banakh, I N Smalikho, A V Falits
The accuracy of the method of azimuth structure function for estimation of the dissipation rate of the kinetic energy of turbulence from an array of radial velocities measured by low-energy micropulse coherent Doppler lidars with conical scanning by a probing beam around the vertical axis has been studied numerically. The applicability of the method in dependence on the turbulence intensity and the signal-to-noise ratio has been determined. The method of azimuth structure function was applied for estimation of the turbulent energy dissipation rate from radial velocities measured by the lidar in the experiments on the coast of Lake Baikal...
September 18, 2017: Optics Express
https://www.readbyqxmd.com/read/28987614/restorative-retinal-laser-therapy-present-state-and-future-directions
#18
REVIEW
Jay Chhablani, Young Jung Roh, Andrew I Jobling, Erica L Fletcher, Jia Jia Lek, Pooja Bansal, Robyn Guymer, Jeffrey K Luttrull
Because of complications and side effects, conventional laser therapy has taken a back seat to drugs in the treatment of macular diseases. Despite this, research on new laser modalities remains active. In particular, various approaches are being pursued to preserve and improve retinal structure and function. These include micropulsing, various exposure titration algorithms, and real-time temperature feedback control of short-pulse continuous wave lasers, and ultra-short-pulse nanosecond lasers. Some of these approaches are at the preclinical stage of development, whereas others are available for clinical use...
October 5, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28910825/comparison-of-continuous-wave-and-micropulse-modulation-in-retinal-laser-therapy
#19
COMPARATIVE STUDY
Jenny Wang, Yi Quan, Roopa Dalal, Daniel Palanker
Purpose: Recent progress in retinal laser therapy has centered upon using thermal stress below damage threshold or selective destruction of targeted tissue layers as a stimulus for retinal repair. Temporal modulation, including micropulse, is thought to increase the selectivity of laser treatment, but has not been carefully analyzed. We measure and model the tissue response to continuous-wave (CW) and micropulse laser to evaluate the advantages and drawbacks of temporal modulation. Methods: Thresholds of ophthalmoscopic visibility, which indicates damage to photoreceptors, and fluorescein angiography (FA), indicating damage to retinal pigment epithelium (RPE), were measured with 577-nm laser in rabbits for duty cycles ranging from 3% to 100% (CW) and pulse envelopes of 20 and 200 ms...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28875406/subretinal-fibrin-absorption-after-577-nm-subthreshold-micropulse-laser-therapy-in-a-csc-case-a-brief-report
#20
Lijun Zhou, Tao Li, Kunbei Lai, Chuangxin Huang, Fabao Xu, Zhe Zhu, Lin Lu, Chenjin Jin
No abstract text is available yet for this article.
September 5, 2017: Lasers in Medical Science
keyword
keyword
64701
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"