keyword
MENU ▼
Read by QxMD icon Read
search

Humidifiers

keyword
https://www.readbyqxmd.com/read/29765933/a-pilot-study-of-inhaled-co-therapy-in-neonatal-hypoxia-ischemia-carboxyhemoglobin-concentrations-and-brain-volumes
#1
Martha Douglas-Escobar, Monique Mendes, Candace Rossignol, Nikolay Bliznyuk, Ariana Faraji, Abdullah S Ahmad, Sylvain Doré, Michael D Weiss
Objective: The objective of this pilot study was to start evaluating the efficacy and the safety (i.e., carboxyhemoglobin concentration of carbon monoxide (CO)) as a putative neuroprotective therapy in neonates. Study Design: Neonatal C57BL/6 mice were exposed to CO at a concentration of either 200 or 250 ppm for a period of 1 h. The pups were then sacrificed at 0, 10, 20, 60, 120, 180, and 240 min after exposure to either concentration of CO, and blood was collected for analysis of carboxyhemoglobin. Following the safety study, 7-day-old pups underwent a unilateral carotid ligation...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29750436/fetal-blood-gas-values-during-fetoscopic-myelomeningocele-repair-performed-under-carbon-dioxide-insufflation
#2
Ahmet A Baschat, Edward S Ahn, Jamie Murphy, Jena L Miller
BACKGROUND: Fetoscopic myelomeningocele (MMC) repair is performed with intrauterine carbon dioxide (CO2 ) insufflation. While lamb experiments have shown significant fetal acidemia following CO2 insufflation corresponding information for human pregnancies is not available. CASES: We performed umbilical venous cord blood sampling in three patients during fetoscopic MMC repair at 25+1, 25+3 and 24+1 weeks gestation. Fetal venous pH at the beginning of CO2 insufflation were 7...
May 10, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29743098/impact-of-flow-and-temperature-on-patient-comfort-during-respiratory-support-by-high-flow-nasal-cannula
#3
Tommaso Mauri, Alessandro Galazzi, Filippo Binda, Laura Masciopinto, Nadia Corcione, Eleonora Carlesso, Marta Lazzeri, Elena Spinelli, Daniela Tubiolo, Carlo Alberto Volta, Ileana Adamini, Antonio Pesenti, Giacomo Grasselli
BACKGROUND: The high-flow nasal cannula (HFNC) delivers up to 60 l/min of humidified air/oxygen blend at a temperature close to that of the human body. In this study, we tested whether higher temperature and flow decrease patient comfort. In more severe patients, instead, we hypothesized that higher flow might be associated with improved comfort. METHODS: A prospective, randomized, cross-over study was performed on 40 acute hypoxemic respiratory failure (AHRF) patients (PaO2 /FiO2  ≤ 300 + pulmonary infiltrates + exclusion of cardiogenic edema) supported by HFNC...
May 9, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29742220/humidification-and-heating-of-inhaled-gas-in-patients-with-artificial-airway-a-narrative-review
#4
Gustavo Adrián Plotnikow, Matias Accoce, Emiliano Navarro, Norberto Tiribelli
Instrumentation of the airways in critical patients (endotracheal tube or tracheostomy cannula) prevents them from performing their function of humidify and heating the inhaled gas. In addition, the administration of cold and dry medical gases and the high flows that patients experience during invasive and non-invasive mechanical ventilation generate an even worse condition. For this reason, a device for gas conditioning is needed, even in short-term treatments, to avoid potential damage to the structure and function of the respiratory epithelium...
March 2018: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29741994/development-of-a-novel-explant-culture-method-for-the-isolation-of-mesenchymal-stem-cells-from-human-breast-tumor
#5
Koushan Sineh Sepehr, Alireza Razavi, Mohsen Saeidi, Majid Mossahebi-Mohammadi, Meghdad Abdollahpour-Alitappeh, Seyed Mahmoud Hashemi
BACKGROUND: Mesenchymal stem cells (MSCs) were isolated from various sources, including various types of tumors. However choosing an appropriate isolation method is an important step in obtaining cells with optimal quality and yield in companion with economical considerations. The purpose of this study was to isolate of more pure MSCs from human breast tumor tissue by a modified explant culture method. METHODS AND MATERIALS: The tumor tissues (n = 8) was cut into 1 to 3-mm cube-like pieces (explant)...
May 9, 2018: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/29729147/assessment-of-azadirachtin-a-a-neem-tetranortritarpinoid-on-rat-spermatozoa-during-in-vitro-capacitation
#6
Teesta V Katte, Malempati Rajyalakshmi, Ravindranath H Aladakatti
BACKGROUND: The exploration of the biological assessment of technical azadirachtin, a tetranortritarpinoid from the neem seed kernel, was reviewed. The present study was, therefore, designed to evaluate the dose-dependent in vitro effects of azadirachtin-A, particularly on the functional studies and determination of molecular events, which are critical in the process of sperm capacitation. METHODS: To assess the effects of the azadirachtin-A on the functional studies, sperm capacitation, the total sperm adenosine triphosphate levels, acrosome reaction (AR), the sperm-egg interaction and the determination of molecular events like cyclic adenosine-3',5'-monophosphate and calcium levels, the appropriate volumes of the sperm suspension were added to the medium to a final concentration of 1×106 sperm/mL and incubated in a humidified atmosphere of 5% CO2 in air at 37°C...
May 5, 2018: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/29723923/a-humidifier-in-the-invasive-mode-during-non-invasive-respiratory-support-could-increase-condensation-and-thereby-impair-airway-patency
#7
Rutger C Flink, Anton H van Kaam, Frans H de Jongh
AIM: Humidifying non-invasively ventilated preterm infants is critical to prevent dehydration of respiratory mucosa, but over humidification can result in impaired airway patency and lung mechanics. This neonatal bench study investigated the humidity delivered using invasive and non-invasive humidification modes during nasal continuous positive airway pressure. METHODS: The study was conducted at the neonatal intensive care unit of Emma Children's Hospital, the Netherlands, in March 2014...
May 3, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29720758/ultra-modified-rapid-sequence-induction-with-transnasal-humidified-rapid-insufflation-ventilatory-exchange-challenging-convention
#8
Ketan Sakharam Kulkarni, Nandini Dave, Shriyam Saran, Madhu Garasia, Sandesh Parelkar
During positive pressure ventilation, gastric inflation and subsequent pulmonary aspiration can occur. Rapid sequence induction (RSI) technique is an age-old formula to prevent this. We adopted a novel approach of RSI for patients with high risk of aspiration and evaluated it further in patients undergoing laparoscopic surgeries. We believe that, in patients with risk of gastric insufflation and pulmonary aspiration, transnasal humidified rapid-insufflation ventilatory exchange can be useful in facilitating pre- and apnoeic oxygenation till tracheal isolation is achieved...
April 2018: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29713153/long-term-effects-of-oxygen-enriched-high-flow-nasal-cannula-treatment-in-copd-patients-with-chronic-hypoxemic-respiratory-failure
#9
Line Hust Storgaard, Hans-Ulrich Hockey, Birgitte Schantz Laursen, Ulla Møller Weinreich
Background: This study investigated the long-term effects of humidified high-flow nasal cannula (HFNC) in COPD patients with chronic hypoxemic respiratory failure treated with long-term oxygen therapy (LTOT). Patients and methods: A total of 200 patients were randomized into usual care ± HFNC. At inclusion, acute exacerbation of COPD (AECOPD) and hospital admissions 1 year before inclusion, modified Medical Research Council (mMRC) score, St George's Respiratory Questionnaire (SGRQ), forced expiratory volume in 1 second (FEV1 ), 6-minute walk test (6MWT) and arterial carbon dioxide (PaCO2 ) were recorded...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29694995/respiratory-support-in-bronchiolitis-trial-evidence
#10
Steve Cunningham
Acute viral lower respiratory tract infection is frequently associated with hypoxemia and respiratory distress, sometimes progressing to hypercarbia and respiratory failure. In recent years, trials have assessed the effects of oxygen supplementation and respiratory support with high-flow oxygen therapy. An oxygen saturation target of 90% is as safe and clinically effective as 94% in infants with bronchiolitis. Trials of high-flow humidified oxygen have demonstrated safety, but as yet poorly demarcated an appropriate place for use within the clinical course of the disease...
May 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29683219/response-of-consumer-and-research-grade-indoor-air-quality-monitors-to-residential-sources-of-fine-particles
#11
Brett C Singer, William W Delp
The ability to inexpensively monitor PM2.5 to identify sources and enable controls would advance residential indoor air quality (IAQ) management. Consumer IAQ monitors incorporating low-cost optical particle sensors and connections with smart home platforms could provide this service if they reliably detect PM2.5 in homes. In this study, particles from typical residential sources were generated in a 120 m3 laboratory and time-concentration profiles were measured with seven consumer monitors (2-3 units each), two research monitors (Thermo pDR-1500, MetOne BT-645), a Grimm Mini Wide-Range Aerosol Spectrometer (GRM), and a Tapered Element Oscillating Microbalance with Filter Dynamic Measurement System (FDMS), a federal equivalent method (FEM) for PM2...
April 23, 2018: Indoor Air
https://www.readbyqxmd.com/read/29677529/probing-nanomechanical-interaction-at-the-interface-between-biological-membrane-and-potentially-toxic-chemical
#12
Chanoong Lim, Sohee Park, Jinwoo Park, Jina Ko, Dong Woog Lee, Dong Soo Hwang
Various xenobiotics interact with biological membranes, and precise evaluations of the molecular interactions between them are essential to foresee the toxicity and bioavailability of existing or newly synthesized molecules. In this study, surface forces apparatus (SFA) measurement and Langmuir trough based tensiometry are performed to reveal nanomechanical interaction mechanisms between potential toxicants and biological membranes for ex vivo toxicity evaluation. As a toxicant, polyhexamethylene guanidine (PHMG) was selected because PHMG containing humidifier disinfectant and Vodka caused lots of victims in both S...
April 12, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29663625/comparative-evaluation-of-extracellular-%C3%AE-d-fructofuranosidase-in-submerged-and-solid-state-fermentation-produced-by-newly-identified-bacillus-subtilis-strain
#13
Lynette Lincoln, Sunil S More
AIM: To screen and identify a potential extracellular β-D-fructofuranosidase or invertase producing bacterium from soil, and comparatively evaluate the enzyme biosynthesis under submerged and solid-state fermentation. METHODS AND RESULTS: Extracellular invertase producing bacteria were screened from soil. Identification of the potent bacterium was performed based on microscopic examinations and 16S rDNA molecular sequencing. Bacillus subtilis LYN12 invertase secretion was surplus with wheat bran humidified with molasses medium (70%), with elevated activity at 48 h and 37 °C under solid-state fermentation, whereas under submerged conditions increased activity was observed at 24 h and 45 °C in the molasses medium...
April 17, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29652814/health-risk-assessment-on-hazardous-ingredients-in-household-deodorizing-products
#14
Minjin Lee, Joo-Hyon Kim, Daeyeop Lee, Jaewoo Kim, Hyunwoo Lim, Jungkwan Seo, Young-Kwon Park
The inhalation of a water aerosol from a humidifier containing disinfectants has led to serious lung injuries in Korea. To promote the safe use of products, the Korean government enacted regulations on the chemicals in various consumer products that could have adverse health effects. Given the concern over the potential health risks associated with the hazardous ingredients in deodorizing consumer products, 17 ingredients were analyzed and assessed according to their health risk on 3 groups by the application type in 47 deodorizing products...
April 13, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29651817/two-cases-of-chloromethylisothiazolinone-and-methylisothiazolinone-associated-toxic-lung-injury
#15
Eun Lee, Seung Kook Son, Jisun Yoon, Hyun Ju Cho, Song I Yang, Sungsu Jung, Kyung Hyun Do, Young Ah Cho, So Yeon Lee, Dong Uk Park, Soo Jong Hong
Previous animal studies have not conclusively determined the association between exposure to humidifier disinfectants (HDs) containing 5-chloro-2-methyl-4-isothiazolin-3-one (CMIT) and/or 2-methyl-4-isothiazolin-3-one (MIT) and development of HD-associated lung injuries. Nonetheless, patients exposed to HDs containing only CMIT and/or MIT showed clinically similar lung injuries to those exposed to HDs containing polyhexamethylene guanidine (PHMG) or oligo (2-[2-ethoxy]ethoxyethyl) guanidinium chloride (PGH)...
April 16, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29643554/effectiveness-of-transnasal-humidified-rapid-insufflation-ventilatory-exchange-versus-traditional-preoxygenation-followed-by-apnoeic-oxygenation-in-delaying-desaturation-during-apnoea-a-preliminary-study
#16
Sunil Rajan, Nandhini Joseph, Pulak Tosh, Dilesh Kadapamannil, Jerry Paul, Lakshmi Kumar
Background and Aims: Transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) during apnoea has shown to delay desaturation. The primary objective was to compare time to desaturate to <90% during apnoea with THRIVE versus traditional preoxygenation followed by apnoeic oxygenation. Methods: This prospective, randomised, single-blinded study was conducted in 10 adult patients presenting for direct laryngoscopy under general anaesthesia without endotracheal intubation...
March 2018: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29630152/lamellar-ichthyosis-in-a-female-neonate-without-a-collodion-membrane
#17
Kevin Chao, Maria Aleshin, Zachary Goldstein, Scott Worswick, Marcia Hogeling
The term, autosomal recessive congenital ichthyosis (ARCI), describes a group of rare genetic skin diseases of cornification involving hyperkeratotic scaling at birth. The defective skin barrier function may lead to dehydration, body temperature instability, and high susceptibility to infections. In most cases of ARCI, neonates are born with a collodion membrane covering the body, often presenting with ectropion and eclabium. We report a premature female neonate presenting with hyperkeratotic scaling at birth without a collodion membrane...
February 15, 2018: Dermatology Online Journal
https://www.readbyqxmd.com/read/29628590/comparison-of-arterial-oxygenation-and-acid-base-balance-with-the-use-of-transnasal-humidified-rapid-insufflation-ventilatory-exchange-versus-tidal-volume-breathing-with-continuous-positive-airway-pressure-for-preoxygenation-and-apneic-ventilation
#18
Nandhini Joseph, Sunil Rajan, Pulak Tosh, Dilesh Kadapamannil, Lakshmi Kumar
Background: Preoxygenation and apneic ventilation prolong apnea time without desaturation. Aims: The primary objective of this study is to compare arterial oxygenation during the periods of apnea following preoxygenation and apneic ventilation with tidal volume breathing for 3 min with continuous positive airway pressure (CPAP) versus with transnasal humidified rapid-insufflation ventilatory exchange (THRIVE). Settings and Designs: This prospective randomized study was conducted in 20 adult patients at a tertiary care institution...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29617447/increased-visceral-tissue-perfusion-with-heated-humidified-carbon-dioxide-insufflation-during-open-abdominal-surgery-in-a-rodent-model
#19
Jonathan P Robson, Pavlo Kokhanenko, Jean K Marshall, Anthony R Phillips, Jan van der Linden
Tissue perfusion during surgery is important in reducing surgical site infections and promoting healing. This study aimed to determine if insufflation of the open abdomen with heated, humidified (HH) carbon dioxide (CO2) increased visceral tissue perfusion and core body temperature during open abdominal surgery in a rodent model. Using two different rodent models of open abdominal surgery, visceral perfusion and core temperature were measured. Visceral perfusion was investigated using a repeated measures crossover experiment with rodents receiving the same sequence of two alternating treatments: exposure to ambient air (no insufflation) and insufflation with HH CO2...
2018: PloS One
https://www.readbyqxmd.com/read/29607161/effectiveness-of-high-flow-nasal-cannula-oxygen-therapy-for-acute-respiratory-failure-with-hypercapnia
#20
Eun Sun Kim, Hongyeul Lee, Se Joong Kim, Jisoo Park, Yeon Joo Lee, Jong Sun Park, Ho Il Yoon, Jae Ho Lee, Choon-Taek Lee, Young-Jae Cho
Background: Heated and humidified high-flow nasal cannula (HFNC) oxygen therapy has recently been introduced for hypoxic respiratory failure. However, it has not been well-evaluated for acute respiratory failure with hypercapnia. Methods: This retrospective study included acute respiratory failure patients with hypercapnia in the medical intensive care unit (MICU) from April 2011 to February 2013, who required HFNC oxygen therapy for hypoxemia. Respiratory parameters were recorded and arterial blood gas analyses conducted before, and at 1 and 24 h after initiation of HFNC oxygen therapy...
February 2018: Journal of Thoracic Disease
keyword
keyword
116481
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"