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Surgical plume

X He, S Karra, P Pakseresht, S V Apte, S Elghobashi
High-fidelity, predictive fluid flow simulations of the interactions between the rising thermal plumes from forced air warming blower and the ultraclean ventilation air in an operating (OR) are conducted to explore whether this complex flow can impact the dispersion of squames to the surgical site. A large-eddy simulation (LES), accurately capturing the spatio-temporal evolution of the flow in three-dimensions together with the trajectories of squames, is performed for a realistic OR consisting of an operating table (OT), side tables, surgical lamps, medical staff, and a patient...
January 9, 2018: International Journal for Numerical Methods in Biomedical Engineering
Kay Neumann, Markus Cavalar, Achim Rody, Luisa Friemert, Daniel A Beyer
INTRODUCTION: Growing evidence shows a causal role of high-risk humane papillomavirus (HPV) infections in the development of head and neck cancer. A recent case report shows two patients suffering from tonsillar cancer without any risk factors apart from their work as gynecologists doing laser ablations and loop electrosurgical excision procedures (LEEP). The aim of the present investigation is to evaluate whether surgical plume resulting from routine LEEPs of HSIL of the cervix uteri might be contaminated with the DNA of high-risk HPV...
December 13, 2017: Archives of Gynecology and Obstetrics
Davey Kreeft, Ewout Aart Arkenbout, Paulus Wilhelmus Johannes Henselmans, Wouter R van Furth, Paul Breedveld
A clear visualization of the operative field is of critical importance in endoscopic surgery. During surgery the endoscope lens can get fouled by body fluids (eg, blood), ground substance, rinsing fluid, bone dust, or smoke plumes, resulting in visual impairment. As a result, surgeons spend part of the procedure on intermittent cleaning of the endoscope lens. Current cleaning methods that rely on manual wiping or a lens irrigation system are still far from ideal, leading to longer procedure times, dirtying of the surgical site, and reduced visual acuity, potentially reducing patient safety...
October 2017: Surgical Innovation
Claire L Carter, Jace W Jones, Ann M Farese, Thomas J MacVittie, Maureen A Kane
Chronic respiratory diseases are among the leading causes of deaths worldwide and major contributors of morbidity and global disease burden. To appropriately investigate lung disease, the respiratory airways must be fixed in their physiological orientation and should be inflated prior to investigations. We present an inflation-fixation method that enables lipidomic investigations of whole lung samples and resected biopsy specimens by matrix-assisted laser desorption/ionization-mass spectrometry imaging (MALDI-MSI)...
May 3, 2016: Analytical Chemistry
Rajesh Devassy, Sreelatha Gopalakrishnan, Rudy Leon De Wilde
The specialty of laparoscopy has evolved with the advent of new technologies over the last few years. Energy-based devices and Ultrasonic dissectors are used with a lot of factors in play-including ergonomics and economics during surgery. Here an attempt is based to review the surgical efficacy and safety of these dissectors with importance to plume production and lateral thermal damage. The factors contributing to adversities to the dissectors are also to be noted. The strategy adopted was aimed at finding relevant studies from PubMed from 1995 to 2014...
October 2015: Journal of Obstetrics and Gynaecology of India
Tobias Kisch, Eirini Liodaki, Robert Kraemer, Peter Mailaender, Matthias Brandenburger, Veronika Hellwig, Felix H Stang
Monopolar electrocautery is a fast and elegant cutting option. However, as it creates surgical smoke containing polycyclic aromatic hydrocarbons (PAHs), it may be hazardous to the health of the surgical team. Although new technologies, such as feedback mode (FM) and Teflon-coated blades (TBs), reduce tissue damage, their impact on surgical smoke creation has not yet been elucidated. Therefore, we analyzed the plume at its source.The aim of this study was to evaluate if electrocautery FM and TBs create less surgical smoke...
July 2015: Medicine (Baltimore)
Leonard Schultz
Preventing surgical site infections requires knowledge of the sources of wound contamination. One possible source of wound contamination is bacteria aerosolized in diathermy plume (ie, surgical smoke). This study used an experimental model of porcine tissue embedded with Serratia marcescens to determine the extent of viable bacteria present in surgical plume. The results showed that only blended current electrosurgery, not laser plume or coagulation electrosurgery, contains viable bacteria. Further, the study revealed that placing a suction device near the electrosurgical site reduced the number of aerosolized viable bacteria...
July 2015: AORN Journal
Catherine Lindsey, Marie Hutchinson, Gary Mellor
Perioperative nurses in the OR may experience more extensive and sustained exposure to surgical plumes than other surgical personnel. Compared with laser plumes, less policy attention has been given to mitigating the risks associated with exposure to diathermy plumes. Diathermy can produce ultrafine particles and volatile chemical and biological substances, of which a number are teratogenic or carcinogenic. Evidence suggests diathermy plumes contain more biohazards than laser plumes, although protective smoke evacuation equipment is less likely to be used with diathermy...
April 2015: AORN Journal
Michael O Rivett, Rachel A Dearden, Gary P Wealthall
A detailed field-scale investigation of processes controlling the architecture, persistence and dissolution of a 20 to 45year old trichloroethene (TCE) dense non-aqueous phase liquid (DNAPL) source zone located within a heterogeneous sand/gravel aquifer at a UK industrial site is presented. The source zone was partially enclosed by a 3-sided cell that allowed detailed longitudinal/fence transect monitoring along/across a controlled streamtube of flow induced by an extraction well positioned at the cell closed end...
December 1, 2014: Journal of Contaminant Hydrology
Rodrigo Donalisio da Silva, David Sehrt, Wilson R Molina, Jake Moss, Sang Hyun Park, Fernando J Kim
With the advent of laparoscopic surgery, the need of optimal visualization and efficient instrumentation has created a need for better understanding of the characteristics of the surgical plume. Despite the technological advances of digital imaging and dissector technology (ultrasonic, radiofrequency electrical, and bipolar), the inconvenient and sometimes harmful generation of a surgical plume decreases visualization, often requiring the surgeon to remove the scope from the surgical field and remove the obstructing particles...
July 2014: JSLS: Journal of the Society of Laparoendoscopic Surgeons
Fernando J Kim, David Sehrt, Wilson R Molina, Alexandre Pompeo
OBJECTIVE: On April 25, 2012, the first laparoscopic cordless ultrasonic device (Sonicision, Covidien, Mansfield, Massachusetts) was used in a clinical setting. We describe our initial experience. METHODS: The cordless device is assembled with a reusable battery and generator on a base hand-piece. It has a minimum and maximum power setting controlled by a single trigger for both coagulation and cutting. A laparoscopic radical nephrectomy was performed on a 56-year-old man with a 7-cm right renal mass...
July 2014: JSLS: Journal of the Society of Laparoendoscopic Surgeons
Minwoo Ahn, Nguyen Trung Hau, Nguyen Van Phuc, Junghwan Oh, Hyun Wook Kang
BACKGROUND AND OBJECTIVE: Laser light has been widely used as a surgical tool to treat benign prostate hyperplasia (BPH) over 20 years. Recently, application of high laser power up to 200 W was often reported to swiftly remove a large amount of prostatic tissue. The purpose of this study was to validate the feasibility of photoactive dye injection to enhance light absorption and eventually to facilitate tissue vaporization with low laser power. MATERIALS AND METHODS: Chicken breast tissue was selected as a target tissue due to minimal optical absorption at the visible wavelength...
November 2014: Lasers in Surgery and Medicine
Julia F Lippert, Steven E Lacey, Ramon Lopez, John Franke, Lorraine Conroy, John Breskey, Nurtan Esmen, Li Liu
The U.S. Occupational Safety and Health Administration (OSHA) estimates that half a million health-care workers are exposed to laser surgical smoke each year. The purpose of this study was to establish a methodology to (1) estimate emission rates of laser-generated air contaminants (LGACs) using an emission chamber, and to (2) perform a screening study to differentiate the effects of three laser operational parameters. An emission chamber was designed, fabricated, and assessed for performance to estimate the emission rates of gases and particles associated with LGACs during a simulated surgical procedure...
2014: Journal of Occupational and Environmental Hygiene
Leonard Schultz
Chronic exposure to surgical smoke can transmit viruses; lead to respiratory illness; and increase the risk of more serious conditions, including Alzheimer disease, collagen and cardiac diseases, and cancer. Despite this, surgical smoke plume capture and evacuation devices are often used sporadically or not at all, and do not necessarily reduce costs per procedure. In addition, the current choices for smoke plume capture are varied, and health care providers may make decisions about what type of method to use based on marketing materials rather than facts, leaving most clinicians and managers frustrated and cynical about supporting the effort to capture surgical smoke plume...
February 2014: AORN Journal
Fernando J Kim, David Sehrt, Alexandre Pompeo, Wilson R Molina
OBJECTIVE: To characterize laparoscopic ultrasonic dissector surgical plume emission (laminar or turbulent) and investigate plume settlement time between curved and straight blades. MATERIALS AND METHODS: A straight and a curved blade laparoscopic ultrasonic dissector were activated on tissue and in a liquid environment to evaluate plume emission. Plume emission was characterized as either laminar or turbulent and the plume settlement times were compared. Devices were then placed in liquid to observed consistency in the fluid disruption...
May 2014: Surgical Endoscopy
Rajesh Kanawade, Fanuel Mahari, Florian Klämpfl, Maximilian Rohde, Christian Knipfer, Katja Tangermann-Gerk, Werner Adler, Michael Schmidt, Florian Stelzle
The research work presented in this paper focuses on qualitative tissue differentiation by monitoring the intensity ratios of atomic emissions using 'Laser Induced Breakdown Spectroscopy' (LIBS) on the plasma plume created during laser tissue ablation. The background of this study is to establish a real time feedback control mechanism for clinical laser surgery systems during the laser ablation process. Ex-vivo domestic pig tissue samples (muscle, fat, nerve and skin) were used in this experiment. Atomic emission intensity ratios were analyzed to find a characteristic spectral line for each tissue...
January 2015: Journal of Biophotonics
J Manickavasagam, A Jebreel
BACKGROUND: There has been a major evolution in laryngeal surgery, largely due to an improved understanding of disease pathogenesis and advances in technology, especially the introduction of lasers. METHOD AND RESULTS: Continuous laser plume evacuation during endolaryngeal surgery improves visualisation of the surgical field. Hence, microlaryngoscopes are fitted with smoke evacuation channels on their sides. We have devised a new, simple and efficient suction holder clip for endolaryngeal surgery that has distinct advantages over other suction holders...
September 2013: Journal of Laryngology and Otology
Nicholas Mowbray, James Ansell, Neil Warren, Pete Wall, Jared Torkington
BACKGROUND: Smoke is generated by energy-based surgical instruments. The airborne byproducts may have potential health implications. This study aimed to evaluate the properties of surgical smoke and the evidence for the harmful effects to the theater staff. METHODS: Cochrane Database, MEDLINE, PubMed, Embase classic and Embase, and the metaRegister of Controlled Trials were searched for studies reporting the constituents found in the smoke plume created during surgical procedures, the methods used to analyze the smoke, the implications of exposure, and the type of surgical instrument that generated the smoke...
September 2013: Surgical Endoscopy
David S Hui, Benny K Chow, Leo Chu, Susanna S Ng, Nelson Lee, Tony Gin, Matthew T V Chan
OBJECTIVES: We compared the expelled air dispersion distances during coughing from a human patient simulator (HPS) lying at 45° with and without wearing a surgical mask or N95 mask in a negative pressure isolation room. METHODS: Airflow was marked with intrapulmonary smoke. Coughing bouts were generated by short bursts of oxygen flow at 650, 320, and 220L/min to simulate normal, mild and poor coughing efforts, respectively. The coughing jet was revealed by laser light-sheet and images were captured by high definition video...
2012: PloS One
Dennis O Frank, Julia S Kimbell, Daniel Cannon, John S Rhee
BACKGROUND: Quantitative methods for comparing intranasal drug delivery efficiencies pre- and postoperatively have not been fully utilized. The objective of this study is to use computational fluid dynamics techniques to evaluate aqueous nasal spray penetration efficiencies before and after surgical correction of intranasal anatomic deformities. METHODS: Ten three-dimensional models of the nasal cavities were created from pre- and postoperative computed tomography scans in 5 subjects...
January 2013: International Forum of Allergy & Rhinology
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