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protocol of membrane sweeping

Marcelo Park, Pedro Vitale Mendes, Adriana Sayuri Hirota, Edzangela Vasconcelos dos Santos, Eduardo Leite Vieira Costa, Luciano Cesar Pontes Azevedo
OBJECTIVE: To analyze the correlations of the blood flow/pump rotation ratio and the transmembrane pressure, CO2 and O2 transfer during the extracorporeal respiratory support. METHODS: Five animals were instrumented and submitted to extracorporeal membrane oxygenation in a five-step protocol, including abdominal sepsis and lung injury. RESULTS: This study showed that blood flow/pump rotations ratio variations are dependent on extracorporeal membrane oxygenation blood flow in a positive logarithmic fashion...
April 2015: Revista Brasileira de Terapia Intensiva
Rima J Jarrah, Samuel J Ajizian, Swati Agarwal, Scott C Copus, Thomas A Nakagawa
OBJECTIVE: The revised guidelines for the determination of brain death in infants and children stress that apnea testing is an integral component in determining brain death based on clinical criteria. Unfortunately, these guidelines provide no process for apnea testing during the determination of brain death in patients supported on venoarterial extracorporeal membrane oxygenation. We review three pediatric patients supported on venoarterial extracorporeal membrane oxygenation who underwent apnea testing during their brain death evaluation...
February 2014: Pediatric Critical Care Medicine
N Winer
OBJECTIVES: Define methods of induction of labour for the population of pregnant women at the end of 41 SA and beyond, including membranes sweeping, mechanical and pharmacological procedures as oxytocin, prostaglandin E1 (misoprostol) and E2 (dinoprostone) and other methods as well for the scarred uterus. METHODS: Bibliographic research done by consulting databases PubMed, and Cochrane. RESULTS: Membrane sweeping reduces by 41% the need of induction of labour at 41 SA and 72% for postterm (42 SA)...
December 2011: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
G J Peek, D Elbourne, M Mugford, R Tiruvoipati, A Wilson, E Allen, F Clemens, R Firmin, P Hardy, C Hibbert, N Jones, H Killer, M Thalanany, A Truesdale
OBJECTIVES: To determine the comparative effectiveness and cost-effectiveness of conventional ventilatory support versus extracorporeal membrane oxygenation (ECMO) for severe adult respiratory failure. DESIGN: A multicentre, randomised controlled trial with two arms. SETTING: The ECMO centre at Glenfield Hospital, Leicester, and approved conventional treatment centres and referring hospitals throughout the UK. PARTICIPANTS: Patients aged 18-65 years with severe, but potentially reversible, respiratory failure, defined as a Murray lung injury score > or = 3...
July 2010: Health Technology Assessment: HTA
N R de Tacconi, C R Chenthamarakshan, G Yogeeswaran, A Watcharenwong, R S de Zoysa, N A Basit, K Rajeshwar
The photoelectrochemical response of nanoporous films, obtained by anodization of Ti and W substrates in a variety of corrosive media and at preselected voltages in the range from 10 to 60 V, was studied. The as-deposited films were subjected to thermal anneal and characterized by scanning electron microscopy and X-ray diffraction. Along with the anodization media developed by previous authors, the effect of poly(ethylene glycol) (PEG 400) or D-mannitol as a modifier to the NH4F electrolyte and glycerol addition to the oxalic acid electrolyte was studied for TiO2 and WO3, respectively...
December 21, 2006: Journal of Physical Chemistry. B
W W Anderson, G L Collingridge
The LTP Program is a stimulation, acquisition and on-line analysis program for studying long-term potentiation (LTP), long-term depression (LTD), and stimulus-evoked synaptic responses in general. The program is freely available from the website: It is a 32-bit DOS program that runs on Windows 3/95/98 computers having a Pico Technologies ADC-42, Axon Instruments' Digidata 1200, or Scientific Solution's Labmaster acquisition board. The program records two channels of activity in extracellular, current- or voltage clamp modes...
July 15, 2001: Journal of Neuroscience Methods
Y S Chen, W J Ko, T F Chou, N K Chou, R B Hsu, S S Wang, F Y Lin, S H Chu
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) provides an immediate support for acute deterioration of hemodynamic and pulmonary status, but what is the best decision for these critical patients? Biventricular assist device (BVAD) or left ventricular assist device (LVAD)? We proposed a protocol of step-by-step conversion from ECMO to LVAD after assurance of the reversibility of right ventricle and pulmonary function. METHODS: After femoral venoarterial ECMO was inserted for the critical patients, the left atrial drainage was added to the ECMO firstly and the femoral arterial inflow was shifted to the ascending aorta for preventing possible peripheral vascular complications...
August 2001: Journal of Cardiovascular Surgery
A K Fok, B C Sison, M S Ueno, R D Allen
Digestive vacuole (DV) formation in Paramecium can be separated into four steps: sequestration and recycling of the spent DV membrane, sweeping and concentrating of particles into the nascent DV, vacuole growth, and the release of the nascent DV. How the size, load and surface charge of solid particles affected formation and subsequently the digestive processes in log-phase cells were investigated. Pulsing cells continuously with beads resulted in an initial linear increase, followed by a steady state, of labelled DVs...
July 1988: Journal of Cell Science
J H Lawrence, D T Yue, W C Rose, E Marban
1. Unitary Na+ channel currents were recorded from isolated guinea-pig ventricular myocytes using the cell-attached patch-clamp technique with high [Na+] in the pipette to enhance the signal-to-noise ratio. 2. The probability that the channel enters the inactivated state (I) directly from resting states (C) was investigated over a wide range of membrane potentials. 3. At membrane potentials of -60 mV or more positive, Markov chain theory was used to estimate the probability of C----I from histograms of the number of channel openings per depolarizing period...
November 1991: Journal of Physiology
W C Rose, C W Balke, W G Wier, E Marban
1. We investigated the currents through L-type Ca2+ channels when Ca2+ (1-10 mM) was the charge carrier, as is the case physiologically. 2. Na+ was removed from both the external and internal solutions to eliminate currents through Na+ channels and Na(+)-Ca2+ exchange. 3. From a holding potential of -50 mV only L-type channels were available to open with depolarization. Macroscopic L-type currents were maximal during depolarizing pulses to +10 mV (peak current density of 4.7 +/- 0.3 nA nF-1). 4. During depolarizing steps as long as 180 ms, the decay of current through L-type channels was incomplete, in contrast to that of T-type current...
October 1992: Journal of Physiology
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