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RAM Cannula

Wilfredo De Jesus Rojas, Cheryl L Samuels, Traci R Gonzales, Katrina E McBeth, Aravind Yadav, James M Stark, Cindy Jon, Ricardo A Mosquera
BACKGROUND: Nasal non-invasive-ventilation (Nasal NIV) is a mode of ventilatory support providing positive pressure to patients via a nasal interface. The RAM Cannula is an oxygen delivery device that can be used as an alternative approach to deliver positive pressure. Together they have been successfully used to provide respiratory support in neonatal in-patient settings. OBJECTIVE: To describe the outpatient use of Nasal NIV/RAM Cannula as a feasible alternative for home respiratory support in children with chronic respiratory failure...
2017: Open Respiratory Medicine Journal
Ram Kandasamy, Andrea T Lee, Michael M Morgan
BACKGROUND: The development of new anti-migraine treatments is limited by the difficulty inassessing migraine pain in laboratory animals. Depression of activity is one of the few diagnostic criteria formigraine that can be mimicked in rats. The goal of the present study was to test the hypothesis thatdepression of home cage wheel running is a reliable and clinically relevant method to assess migraine painin rats. METHODS: Adult female rats were implanted with a cannula to inject allyl isothiocyanate (AITC) onto the dura to induce migraine pain, as has been shown before...
December 2017: Journal of Headache and Pain
L Ferrara, A Bidiwala, I Sher, M Pirzada, D Barlev, S Islam, W Rosenfeld, C C Crowley, N Hanna
OBJECTIVE: Feeding neonates orally while on nasal continuous positive airway pressure (nCPAP) is a common practice. We hypothesize that pressurized airflow provided by nCPAP will alter the swallowing mechanism in neonates, increasing the risk of aspiration during oral feeding. STUDY DESIGN: Infants receiving nCPAP with a RAM cannula and tolerating at least 50% of their feeding orally were included in the study (one term; six preterm infants). Each participant underwent a videofluoroscopic swallow study while on nCPAP and off nCPAP...
April 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
Nikhil Patankar, Omar Al-Ibrahim
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
Selma Aktas, Sezin Unal, Meltem Aksu, Ebru Ozcan, Ebru Ergenekon, Canan Turkyilmaz, Ibrahim Hirfanoglu, Yildiz Atalay
Non-invasive ventilation has been used increasingly in recent years to reduce the duration of endotracheal ventilation and its complications, especially bronchopulmonary dysplasia. Nasal continuous positive airway pressure and nasal intermittent positive pressure ventilation are the most common non-invasive modalities, and nasal high-frequency oscillatory ventilation (n-HFOV) is relatively new but it seems effective and feasible. We present three premature cases who were ventilated with n-HFOV with Neotech RAM Cannula as interphase...
April 2016: Journal of Tropical Pediatrics
Stephanie A Bailes, Kimberly S Firestone, Diane K Dunn, Neil L McNinch, Miraides F Brown, Teresa A Volsko
BACKGROUND: Bubble CPAP, used for spontaneously breathing infants to avoid intubation or postextubation support, can be delivered with different interface types. This study compared the effect that interfaces had on CPAP delivery. We hypothesized that there would be no difference between set and measured levels between interface types. METHODS: A validated preterm infant nasal airway model was attached to the ASL 5000 breathing simulator. The simulator was programmed to deliver active breathing of a surfactant-deficient premature infant with breathing frequency at 70 breaths/min inspiratory time of 0...
March 2016: Respiratory Care
A Mukerji, J Belik
OBJECTIVE: The objective of this study was to evaluate carbon dioxide (CO2) clearance, delivered pressures and tidal volume (VT) during neonatal nasal intermittent positive pressure ventilation (NIPPV) with two commonly used interfaces. STUDY DESIGN: A neonatal lung model, with either short binasal prongs (SBP) or a small caliber nasal cannula (RAM) interface, was tested over a range of clinically relevant settings. A fixed amount of CO2 was infused and the fraction remaining in the lung 100 s postinfusion was measured...
September 2015: Journal of Perinatology: Official Journal of the California Perinatal Association
Jeffrey S Gerdes, Emidio M Sivieri, Soraya Abbasi
OBJECTIVE: To measure mean airway pressure (MAP) delivered through the RAM Cannula® when used with a ventilator in CPAP mode as a function of percent nares occlusion in a simulated nasal interface/test lung model and to compare the results to MAPs using a nasal continuous positive airway pressure (NCPAP) interface with nares fully occluded. STUDY DESIGN: An artificial airway model was connected to a spontaneous breathing lung model in which MAP was measured at set NCPAP levels between 4 and 8 cmH2 O provided by a Dräger Evita XL® ventilator and delivered through three sizes of RAM cannulae...
January 2016: Pediatric Pulmonology
Narayan P Iyer, Robert Chatburn
BACKGROUND: Nasal noninvasive ventilation (NIV) is a common form of noninvasive respiratory mode used in newborn infants. A next-generation nasal cannula (Neotech RAM cannula) has recently been used to provide nasal NIV. The impact of the Neotech RAM cannula on the delivery of pressure needs to be studied. METHODS: In this ex vivo experimental design, a lung simulator (IngMar ASL 5000, version 3.4) was programmed to model a neonate (∼1-3 kg of body weight) with normal-to-moderately affected lungs...
April 2015: Respiratory Care
Nneka I Nzegwu, Tim Mack, Roseann DellaVentura, Louise Dunphy, Nancy Koval, Orly Levit, Vineet Bhandari
OBJECTIVE: To evaluate the clinical efficacy of the RAM nasal cannula (NC) with different modes of non-invasive ventilation (NIV) in the neonatal intensive care unit (NICU). METHODS: A single center prospective, observational study of infants placed on RAM NC. A small trial (Study 1) was completed in 16 infants on NIV via the RAM NC over a 48-h period to create Summary Statement recommendations. Next, over a 10-month period (Study 2), data were prospectively collected for the outcome of all infants receiving respiratory support with the RAM NC...
April 2015: Journal of Maternal-fetal & Neonatal Medicine
Daniel J Krochmal, David J Zajac, Omar M Alhudaib, Omri Emodi, John A van Aalst
Objective : To compare nasal ram pressure (NRP) data with perceptual speech assessments in young children following palatoplasty. Design and Setting : NRP monitoring, a noninvasive technique using a two-pronged nasal cannula that detects nasal airflow during speech, was performed on patients 12 months following palatoplasty in our Craniofacial Center. Patients : Eighteen English-speaking nonsyndromic patients, aged 21 to 28 months, without hearing or language deficits, underwent NRP testing. Main Outcome Measured : During NRP measurement, the number of oral stop consonants produced spontaneously or following prompts was recorded...
September 2013: Cleft Palate-craniofacial Journal
A Fanchone, H Archimede, R Delagarde, M Boval
The effect of two feeding systems (indoors and at pasture) on intake and digestion of fresh grass was studied at two stages of regrowth (21 and 35 days of regrowth) in two parallel experiments. In Experiment 1, 10 adult Martinik rams weighing, on average, 50.5 (± 0.9) kg, including four fitted with rumen cannula, were randomly allocated to two groups according to a 2 × 2 Latin Square design. These rams consumed a 21-day regrowth of Digitaria decumbens grass diet during two successive 28-day periods, indoors (five rams) or at pasture (five tethered rams)...
July 2012: Animal: An International Journal of Animal Bioscience
M Eugène, D Sauvant, J L Weisbecker, H Archimède
The effects of defaunation on growth and digestion were measured in sheep fed fresh Digitaria decumbens grass cut at four stages of regrowth 14, 28, 42, and 56 days, and with different protein to energy (P/E) ratios. Two completely randomized designs trials (growth and digestion) were conducted using faunated animals, defaunated rams and protozoa free lambs. The digestion trial: eight faunated and eight defaunated rams fitted with ruminal and duodenal cannulas were fed 4 diets (diets D1 to D4) to measure digestion parameters...
March 2010: Animal: An International Journal of Animal Bioscience
A J Tilbrook, I J Clarke
In this study we tested the hypothesis that the negative feedback effects by testosterone on the secretion of luteinizing hormone (LH) in rams involves dopaminergic afferents to gonadotrophin-releasing hormone neurons operating via D(2) receptors in the non-breeding season. In the first experiment, three groups (n = 5) of rams were treated with an intravenous injection of vehicle or 10 or 20 mg of the dopaminergic D(2) antagonist pimozide and jugular venous samples were collected every 10 min for 3 h before and 3 h following treatment...
June 1992: Journal of Neuroendocrinology
O M Arigbede, U Y Anele, K-H Südekum, J Hummel, A O Oni, J A Olanite, A O Isah
Seasonal chemical composition and ruminal organic matter (OM) and crude protein (CP) degradabilities were determined in four tropical multi-purpose tree species (MPTS) namely; Pterocarpus santalinoides, Grewia pubescens, Enterolobium cyclocarpum and Leucaena leucocephala. Three West African dwarf (WAD) rams fitted with permanent rumen cannula were used for the degradability trials. Foliage samples were collected four times to represent seasonal variations as follows: January--mid dry; April--late dry; July--mid rainy and October--late rainy seasons...
April 2012: Journal of Animal Physiology and Animal Nutrition
Kate Bunton, Jeannette D Hoit, Keegan Gallagher
Clinical evaluation of velopharyngeal function relies heavily on auditory perceptual judgments that can be supported by instrumental examination of the velopharyngeal valve. Many of the current instrumental techniques are difficult to interpret, expensive, and/or unavailable to clinicians. Proposed in this report is a minimally invasive and inexpensive approach to evaluating velopharyngeal function that has been used successfully in our laboratory for several potentially difficult-to-test clients. The technique is an aeromechanical approach that involves the sensing of nasal ram pressure (N-RamP), a local pressure sensed at the anterior nares, using a two-pronged nasal cannula...
February 2011: Seminars in Speech and Language
Anna E Westra, Maria P A Zegers, Rám N Sukhai, Ad A Kaptein, Herma C Holscher, Bart E P B Ballieux, Erik W van Zwet, Jan M Wit
Magnetic resonance imaging (MRI) scans for research purposes usually do not directly benefit the children scanned, so that review boards need to assess whether the risk of harm or discomfort is minimal. This study aimed at providing empirical data on discomfort related to unsedated MRI in children aged 5-12 years. Secondary objectives were to determine whether lower age is associated with higher levels of discomfort and to investigate which other characteristics of subjects and/or procedures may be associated with higher levels of discomfort...
June 2011: European Journal of Pediatrics
Ram Dickman, Adam Steinmetz, Hanna Bernnstine, David Groshar, Yaron Niv
BACKGROUND: Gastric scintigraphy (GS) is considered the gold standard for gastric emptying rate (GER) measurement; however, it requires expensive equipment and special licensing for radioactive substances. AIM: To compare a new nonradioactive, real-time, continuous breath test (CBT) method with GS for the GER measurement. METHODS: Simultaneous GER analysis by both GS and CBT was carried out on 8 dyspeptic patients and 6 healthy controls. After a 14 hour fast, participants ate a standard meal of 250 Kcal double labeled with 1 mCi of Tc-99m and 100 μg of C-13 labeled octanoic acid...
January 2011: Journal of Clinical Gastroenterology
H Archimède, E González-García, P Despois, T Etienne, G Alexandre
This study aimed to evaluate the substitution of imported corn and soybean by local feed resources from tropical production settings such as entire green banana and Gliricidia sepium forage as energy and protein sources, respectively, in sheep diets. Two experiments were conducted: first, a 'growth trial' and second, an in vivo digestion study. In the 'growth trial', 40 Martinik lambs [body weight (BW): 29.4 +/- 3.6 kg; 6 months old) were used and distributed into four groups of 10 lambs each according to treatment: HBGl (banana + gliricidia at low level; 1500 g/day; 119 g/kg BW(0...
February 1, 2010: Journal of Animal Physiology and Animal Nutrition
A Plascencia, M A Lopez-Soto, M F Montaño, J G Serrano, R A Ware, R A Zinn
Two trials were conducted to evaluate the interaction of the maceration process and surfactant (Tween 80) supplementation on feeding value of rice straw. Treatments were steam-flaked, corn-based diets containing 14% forage (DM basis), which was 1) Sudangrass hay; 2) ground rice straw; 3) ground rice straw plus 0.22% Tween 80; 4) macerated rice straw; and 5) macerated rice straw plus 0.22% Tween 80. In the maceration process, rice straw was passed through 2 sequentially placed pairs of corrugated rolls set at zero tolerance under a ram pressure of 62,050 millibars, similar to a conventional grain roller mill, except that the opposing rolls operated at different speeds (12 and 14 rpm, respectively)...
October 2007: Journal of Animal Science
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