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https://www.readbyqxmd.com/read/28799650/facial-microcirculatory-and-biomechanical-skin-properties-after-single-high-energy-er-yag-laser-application
#1
Fabian Medved, Antonia Wurm, Manuel Held
OBJECTIVE: Owing to skin aging and the growing demand for skin rejuvenation, minimal invasive aesthetic treatments such as laser procedures are increasingly coming into focus. However, until now, little has been known about the objective effects of these procedures with respect to skin microcirculation or changes in skin elasticity. STUDY DESIGN: Facial skin rejuvenation was performed on 32 volunteers using ablative Erbium: YAG laser. Skin microcirculation and skin elasticity have then been evaluated objectively...
August 11, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28797444/straticyte-demonstrates-prognostic-value-over-oral-epithelial-dysplasia-grade-for-oral-potentially-malignant-lesion-assessment
#2
Jason T K Hwang, Ying R Gu, Benjamin J Dickson, Mi Shen, Ranju Ralhan, Paul G Walfish, David Mock, Kenneth P H Pritzker
OBJECTIVES: Straticyte™ was previously shown to be a more effective prognostic assessment than the current standard of care, histopathological dysplasia grading, to assess progression risk of oral epithelial dysplasia to invasive cancer [Hwang JT, Gu YR, Shen M, Ralhan R, Walfish PG, Pritzker KP, et al. Individualized five-year risk assessment for oral premalignant lesion progression to cancer. Oral Surg Oral Med Oral Pathol Oral Radiol. 2017;123:374-81]. In this follow-up study, our aim is to confirm the prognostic value of Straticyte using an independent cohort of oral biopsy cases previously assessed as epithelial dysplasia of various grades...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28782115/optical-coherence-tomography-image-guided-smart-laser-knife-for-surgery
#3
Nitesh Katta, Austin B McElroy, Arnold D Estrada, Thomas E Milner
BACKGROUND AND OBJECTIVE: Surgical oncology can benefit from specialized tools that enhance imaging and enable precise cutting and removal of tissue without damage to adjacent structures. The combination of high-resolution, fast optical coherence tomography (OCT) co-aligned with a nanosecond pulsed thulium (Tm) laser offers advantages over conventional surgical laser systems. Tm lasers provide superior beam quality, high volumetric tissue removal rates with minimal residual thermal footprint in tissue, enabling a reduction in unwanted damage to delicate adjacent sub-surface structures such as nerves or micro-vessels...
August 7, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28780916/assessing-and-improving-hospital-mass-casualty-preparedness-a-no-notice-exercise
#4
Daniel A Waxman, Edward W Chan, Francesca Pillemer, Timothy Wj Smith, Mahshid Abir, Christopher Nelson
In recent years, mass-casualty incidents (MCIs) have become more frequent and deadly, while emergency department (ED) crowding has grown steadily worse and widespread. The ability of hospitals to implement an effective mass-casualty surge plan, immediately and expertly, has therefore never been more important. Yet, mass-casualty exercises tend to be highly choreographed, pre-scheduled events that provide limited insight into hospitals' true capacity to respond to a no-notice event under real-world conditions...
August 7, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28764818/emergency-response-of-iranian-hospitals-against-disasters-a-practical-framework-for-improvement
#5
Ali Janati, Homayoun Sadeghi-Bazargani, Edris Hasanpoor, Mobin Sokhanvar, Elaheh HaghGoshyie, Abdollah Salehi
OBJECTIVE: Hospital emergency management is a continuous process that requires monolithic integration of planning and response attempts with local and national schemes. The aim of the current study is to evaluate emergency response by hospitals against potential disasters in Tabriz, north-west Iran. METHODS: A cross-sectional study was conducted in the city of Tabriz, in Iran, in 2016. The study population included all hospitals in Tabriz. A total of 18 hospitals were assessed...
August 2, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28759110/effects-of-early-combinatorial-treatment-of-autologous-split-thickness-skin-grafts-in-red-duroc-pig-model-using-pulsed-dye-laser-and-fractional-co2-laser
#6
J Kevin Bailey, Britani N Blackstone, Danielle M DeBruler, Jayne Y Kim, Molly E Baumann, Kevin L McFarland, Folasade O Imeokparia, Dorothy M Supp, Heather M Powell
BACKGROUND AND OBJECTIVE: The use of pulsed dye laser (PDL) and fractional CO2 (FX CO2 ) laser therapy to treat and/or prevent scarring following burn injury is becoming more widespread with a number of studies reporting reduction in scar erythema and pruritus following treatment with lasers. While the majority of studies report positive outcomes following PDL or FX CO2 therapy, a number of studies have reported no benefit or worsening of the scar following treatment. The objective of this study was to directly compare the efficacy of PDL, FX CO2 , and PDL + FX CO2 laser therapy in reducing scarring post burn injury and autografting in a standardized animal model...
July 31, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28735591/-we-expect-seniors-to-be-able-to-prepare-and-recover-from-a-cyclone-as-well-as-younger-members-of-this-community-emergency-management-s-expectations-of-older-adults-residing-in-aging-remote-hamlets-on-australia-s-cyclone-prone-coastline
#7
Sandra Astill, Evonne Miller
OBJECTIVE: To investigate the extent to which older residents feel they can remain "self-reliant" during future natural disasters and to compare the findings with the viewpoints of local policy-makers and with those charged with caring for the elderly both on a day-to-day basis and in times of crisis. METHODS: This study used an array of non-probability snowballing techniques to seek the participation of senior citizens over the age of 65 years, emergency services officers, community health carers, and local government disaster managers located in aging, remote, coastal Australian communities vulnerable to cyclones and storm surges...
July 24, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28699676/influence-of-multi-wavelength-laser-irradiation-of-enamel-and-dentin-surfaces-at-0-355-2-94-and-9-4%C3%A2-%C3%AE-m-on-surface-morphology-permeability-and-acid-resistance
#8
Nai-Yuan N Chang, Jamison M Jew, Jacob C Simon, Kenneth H Chen, Robert C Lee, William A Fried, Jinny Cho, Cynthia L Darling, Daniel Fried
OBJECTIVE: Ultraviolet (UV) and infrared (IR) lasers can be used to specifically target protein, water, and mineral, respectively, in dental hard tissues to produce varying changes in surface morphology, permeability, reflectivity, and acid resistance. The purpose of this study was to explore the influence of laser irradiation and topical fluoride application on the surface morphology, permeability, reflectivity, and acid resistance of enamel and dentin to shed light on the mechanism of interaction and develop more effective treatments...
July 12, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28699660/binding-of-indocyanine-green-in-polycaprolactone-fibers-using-blend-electrospinning-for-in-vivo-laser-assisted-vascular-anastomosis
#9
Annemarie Schönfeld, Zacharia Mbäıdjol Kabra, Mihai Constantinescu, Dieter Bosshardt, Michael H Stoffel, Kirsten Peters, Martin Frenz
BACKGROUND AND OBJECTIVE: The clinical application of laser-assisted vascular anastomosis is afflicted by unreliable and low bonding strengths as well as tedious handling during microvascular surgery. The challenge to be met arises from the flow-off of the chromophore during soldering that changes the absorption and stains the surrounding tissue, leading to an uncontrollable thermal damage zone. In this study, we investigated the feasibility to produce an indocyanine green (ICG)-loaded patch by electrospinning and tested its applicability to both in vitro and in vivo microvascular laser soldering...
July 12, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28677822/spectroscopic-characterization-of-oral-epithelial-dysplasia-and-squamous-cell-carcinoma-using-multiphoton-autofluorescence-micro-spectroscopy
#10
Rahul Pal, Kert Edward, Liang Ma, Suimin Qiu, Gracie Vargas
OBJECTIVE: Multiphoton autofluorescence microscopy (MPAM) has shown potential in identifying features that are directly related to tissue microstructural and biochemical changes throughout epithelial neoplasia. In this study, we evaluate the autofluorescence spectral characteristics of neoplastic epithelium in dysplasia and oral squamous cell carcinoma (OSCC) using multiphoton autofluorescence spectroscopy (MPAS) in an in vivo hamster model of oral neoplasia in order to identify unique signatures that could be used to delineate normal oral mucosa from neoplasia...
July 5, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28671718/antinociceptive-effects-of-low-level-laser-therapy-at-3-and-8%C3%A2-j-cm-2-in-a-rat-model-of-postoperative-pain-possible-role-of-endogenous-opioids
#11
Fabio C Pereira, Julia R Parisi, Caio B Maglioni, Gabriel B Machado, Paulino Barragán-Iglesias, Josie R T Silva, Marcelo L Silva
Low-level laser therapy (LLLT) is the direct application of light to stimulate cell responses (photobiomodulation) to promote tissue healing, reduce inflammation, and induce analgesia; the molecular basis for these effects of LLLT remains unclear. The objective of this study was to evaluate the analgesic effect of LLLT in the rat plantar incision model of postoperative pain as well as to investigate some of the possible mechanisms involved in this effect. Wistar rats were submitted to plantar incision and treated with LLLT (830 nm, continuous-mode, 30 mW/cm(2) , 1-12 J/cm(2) )...
July 3, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28640436/two-step-irradiance-schedule-versus-single-dose-cold-compress-for-pain-control-during-5-aminolevulinic-acid-based-photodynamic-therapy-of-condyloma-acuminatum
#12
Xiaonan Shao, Fang Wang, Bin Xu
OBJECTIVE: The purpose of this study was to investigate the effect of two-step irradiance schedule in relieving pain during PDT of CA. METHODS: The study was a prospective, controlled trial of 141 CA patients who were randomly divided into Group A (two-step irradiance schedule) and Group B (single-dose cold compress). The numeric rating scales (NRS) of patients' pain were recorded at 5, 10, 15, and 20 minutes during each PDT. RESULTS: The efficacy of PDT and NRS scores of patients in the two groups were compared...
June 22, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28639004/the-hair-in-the-sinus-sharp-ended-rootless-head-hair-fragments-can-be-found-in-large-amounts-in-pilonidal-sinus-nests
#13
Friederike Bosche, Markus M Luedi, Dominic van der Zypen, Philipp Moersdorf, Bjoern Krapohl, Dietrich Doll
PURPOSE: Hair has been identified as the causative agent of Pilonidal Sinus Disease (PSD). Stiffer, dark hair as well as hairiness has been postulated as causative factors. Astonishingly, despite the early clinical significance of this condition (Hodges in Boston Med Surg J 2:485-486, 1880), macroscopic and microscopic examinations of hair inside pilonidal sinus cavities have been scarce. The purpose of this study was to study the morphological aspects of the hair found in PSD in order to determine the origin of the hair...
June 21, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28625441/the-protective-effects-of-dexmedetomidine-on-ischemic-brain-injury-a-meta-analysis
#14
REVIEW
Lianxiang Jiang, Meizhu Hu, Yan Lu, Ya Cao, Yan Chang, Zeping Dai
BACKGROUND: Intracranial lesions, trauma or surgery-related damage activate immune inflammation and neuroendocrine responses, causing ischemic brain injury. Studies have shown that inflammatory cascade mediated by neuroendocrine hormones and proinflammatory mediators is implicated in the pathophysiology of ischemic brain injury. Alpha2-adrenoceptor agonists, dexmedetomidine, is widely used as neuroprotectants in anesthesia practice. However, it is still lack of a comprehensive meta-analysis to evaluate the neuroprotection of dexmedetomidine against ischemic brain injury via suppressing these two physiological responses...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28606207/utilizing-a-pediatric-disaster-coalition-model-to-increase-pediatric-critical-care-surge-capacity-in-new-york-city
#15
Michael Frogel, Avram Flamm, Mayer Sagy, Katharine Uraneck, Edward Conway, Michael Ushay, Bruce M Greenwald, Louisdon Pierre, Vikas Shah, Mohamed Gaffoor, Arthur Cooper, George Foltin
A mass casualty event can result in an overwhelming number of critically injured pediatric victims that exceeds the available capacity of pediatric critical care (PCC) units, both locally and regionally. To address these gaps, the New York City (NYC) Pediatric Disaster Coalition (PDC) was established. The PDC includes experts in emergency preparedness, critical care, surgery, and emergency medicine from 18 of 25 major NYC PCC-capable hospitals. A PCC surge committee created recommendations for making additional PCC beds available with an emphasis on space, staff, stuff (equipment), and systems...
June 13, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28598555/experimental-and-numerical-investigation-on-the-transient-vascular-thermal-response-to-multi-pulse-nd-yag-laser
#16
Dong Li, Ruohui Li, Hao Jia, Bin Chen, Wenjuan Wu, Zhaoxia Ying
BACKGROUND AND OBJECTIVE: Port wine stains (PWS) are congenital vascular malformations that progressively darken and thicken with age. Laser therapy is currently the most effective way in clinical practice for PWS. A 1,064 nm Nd:YAG laser in the near-infrared band can achieve a deeper treatment depth compared to the current widely adopted pulsed dye laser. However, because of its relatively weak absorption by blood, single-pulse Nd:YAG laser requires high energy density to cause effective vessel damage, but may inflict undesirable burning to surrounding collagen...
June 9, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28598516/intratumor-cisplatin-nephrotoxicity-in-combined-laser-induced-thermal-therapy-for-cancer-treatment
#17
Marcel N Palumbo, Onivaldo Cervantes, Cecilia Eugênio, Flávia T P Hortense, João C Ribeiro, Ana Amélia P Paolini, Antônio C Tedesco, Joel A Sercarz, Marcos B Paiva
INTRODUCTION: Thermal ablation of tumors by Nd:YAG laser has been growing as a multidisciplinary subspecialty defined as laser-induced thermal therapy (LITT), and has been increasingly accepted as a minimally invasive method for palliation of advanced or recurrent cancer. Previous studies have shown that adjuvant chemotherapy can potentiate laser thermal ablation of tumors leading to improved palliation in advanced cancer patients. OBJECTIVE: Evaluate nephrotoxicity by early markers of renal function in treating head and neck cancer using intra-tumor injections of cisplatin combined with laser-induced thermal therapy (CDDP-LITT)...
June 9, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28593793/erratum
#18
(no author information available yet)
Yuka A, Tan J, Baibergenova A, Barankin B, Cochrane CL, Humphrey S, Lynde CW, Marcoux D, Poulin Y, Rivers JK, Sapijaszko M, Sibbald RG, Toole J, Ulmer M, Zip C. Canadian Clinical Practice Guidelines for Rosacea. J Cutan Med Surg. 2016;20(5):432-445. Original DOI: 10.1177/1203475416650427 In the above article, the author affiliation for Ulmer M should have been listed as Department of Dermatology and Skin Science, University of British Columbia, Vancouver, BC, Canada and Carruthers & Humphrey, Vancouver, BC, Canada...
June 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28586092/quantitative-skin-assessment-using-spatial-frequency-domain-imaging-sfdi-in-patients-with-or-at-high-risk-for-pressure-ulcers
#19
Amr Yafi, Fuad K Muakkassa, Tejasvi Pasupneti, Judy Fulton, David J Cuccia, Amaan Mazhar, Kimberly N Blasiole, Eliot N Mostow
BACKGROUND AND OBJECTIVE: Pressure ulcers (PU) are a significant problem facing the health system in the United States. Here, we present preliminary case studies demonstrating feasibility of Spatial Frequency Domain Imaging (SFDI) to assess skin status in high-risk populations and pre-existing wounds. SFDI is a wide-field non-contact optical imaging technology that uses structured light to obtain tissue optical properties and of tissue constituents. This study aims to determine the fit of SFDI for PU care and determine the next steps...
June 6, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28581122/the-application-of-wireless-near-infrared-spectroscopy-on-detecting-peripheral-circulation-in-patients-with-diabetes-foot-ulcer-when-doing-buerger-s-exercise
#20
Min-Ling Chen, Bor-Shyh Lin, Cheng-Wei Su, Yen-Bin Lin, Mei-Yen Chen, Jen-Hsiang Shen, Chang-Cheng Chang
BACKGROUND AND OBJECTIVES: The majority of patients with diabetes foot ulcer have peripheral arterial disease. The technique of near infrared spectroscopy (NIRS) used to monitor the dorsal foot blood circulation condition is by measuring the absorption differences between oxy-hemoglobin and deoxy-hemoglobin. STUDY DESIGNS/MATERIALS AND METHODS: Patients with diabetic foot ulcer (DFU) treated in our wound care center were divided into two sub-groups based on the Duplex ultrasound or angiography...
June 5, 2017: Lasers in Surgery and Medicine
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