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Peak inspiratory pressure

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https://www.readbyqxmd.com/read/28094413/electrical-impedance-tomography-for-lung-ventilation-monitoring-of-the-dog
#1
Simon Gloning, Korbinian Pieper, Martin Zoellner, Andrea Meyer-Lindenberg
BACKGROUND: Electrical impedance tomography (EIT) is a radiation free technique which takes advantage of the different electrical conductivities of different tissues. Its main field of application is lung ventilation monitoring. The aim of this prospective study was to evaluate the feasibility of collecting EIT information on a sample of dogs with different thoracic shapes under clinical conditions by connecting an electrode belt without fur clipping. MATERIAL AND METHODS: Fifteen pulmonary healthy dogs were anaesthetized, positioned in sternal recumbency and ventilated in a pressure-controlled mode at three different positive end-expiratory pressure levels (PEEP) of 0, 5 and 10 cmH2O for five breaths each, with a peak inspiratory pressure of 15 cmH2O...
January 17, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28057838/temporal-evolution-of-thoracocentesis-induced-changes-in-spirometry-and-respiratory-muscle-pressures
#2
Stylianos A Michaelides, George D Bablekos, Antonis Analitis, George Ionas, Petros Bakakos, Konstantinos A Charalabopoulos
BACKGROUND: Several studies investigated the effects of thoracocentesis on aspects of respiratory function without generally ensuring absence of coexistent lung pathology or homogeneity in initial size of the effusion. METHODS: We studied 90 patients aged 61.6±15.9 years (mean±SD) separated into a group A with small-sized or medium-sized effusion (A=56 patients) and a group B with large and massive one (B=34 patients). There was no significant lung lesion or cardiovascular pathology...
January 5, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28051989/minute-ventilation-limitations-of-two-field-transport-ventilators
#3
Dale F Szpisjak, Gregory Horn, Samuel Shalov, Alvin Angelo Abes, Lauren Van Decar
Knowledge of transport ventilator performance impacts patient safety. This study compared minute ventilation (VE) of the MOVES and Uni-Vent 731 when ventilating the VentAid Training Test Lung with compliance (C) ranging from 0.02 to 0.10 L/cm H2O and three different airway resistances (R) (none, Rp5, or Rp20). Tidal volume (VT) was 800 ± 25 mL. Respiratory rate was increased to ventilator's maximum or until auto-PEEP > 5 cm H2O. Respiratory parameters were recorded with the RSS 100HR Research Pneumotach...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28049742/feasibility-of-mid-frequency-ventilation-among-infants-with-respiratory-distress-syndrome
#4
Ramachandra Bhat, John Kelleher, Namasivayam Ambalavanan, Robert L Chatburn, Eduardo Mireles-Cabodevila, Waldemar A Carlo
BACKGROUND: Mid-frequency ventilation, a strategy of using conventional ventilators at high frequencies, may reduce lung injury but has had limited evaluation in neonates. Hence, a randomized crossover study was designed to assess the feasibility of using mid-frequency ventilation in preterm infants with respiratory distress syndrome. METHODS: Twelve preterm infants (≥500 g and ≥24 weeks gestational age) who were receiving pressure-limited conventional ventilation with frequencies ≤60 breaths/min for respiratory distress syndrome were randomized to periods of mid-frequency ventilation (conventional ventilation with the fastest frequency up to 150 breaths/min that gave complete inspiration and expiration) or conventional ventilation (frequency ≤60 breaths/min), each lasting 2 h using a crossover design...
January 3, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28033257/incidental-left-main-bronchus-obstruction-during-left-sided-double-lumen-tube-intubation-of-a-patient-with-an-unrecognized-tracheal-bronchus-a-case-report
#5
Ho Bum Cho, Hyoung June Kim, Hyung Youn Gong, Mun Gyu Kim, Sang Ho Kim
INTRODUCTION: Tracheal bronchus is a right-sided anomalous bronchus arising from the trachea above the main carina and occurs in 0.1% to 2% of the general population. CASE PRESENTATION: We present a case of left main bronchus obstruction during a left-sided double-lumen tube intubation in a patient with an unrecognized tracheal bronchus. After the intubation, to confirm the position of the tube, we observed what we believed was the carina with a fiberoptic bronchoscope, but it was a site between the tracheal bronchus and the right main bronchus...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28009669/effect-of-peak-inspiratory-pressure-on-the-development-of-postoperative-pulmonary-complications-in-mechanically-ventilated-adult-surgical-patients-a-systematic-review-protocol
#6
Chelsa Wamsley, Donald Missel
The objective is to identify the effect of peak inspiratory pressure on the development of postoperative pulmonary complications.More specifically, the objective is to identify the effect of maintaining intraoperative peak inspiratory pressure less than or equal to 30 cmH2O compared with peak inspiratory pressure greater than 30 cmH2O on the incidence of postoperative atelectasis, pneumonia and acute respiratory distress syndrome in mechanically ventilated adult surgical patients.
December 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28009638/the-effect-of-head-rotation-on-efficiency-of-face-mask-ventilation-in-anaesthetised-apnoeic-adults-a-prospective-randomised-crossover-study
#7
Taiga Itagaki, Jun Oto, Sara M Burns, Yandong Jiang, Robert M Kacmarek, Jeremi R Mountjoy
BACKGROUND: Upper airway obstruction occurs commonly after induction of general anaesthesia. It is the major cause of difficult mask ventilation. OBJECTIVES: The aim of this study was to determine whether head rotation improves the efficiency of mask ventilation of anaesthetised apnoeic adults. DESIGN: A prospective crossover study. SETTING: Single university teaching hospital. PATIENTS: Forty patients, aged 18 to 75 years with a BMI 18...
December 22, 2016: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/27977309/drug-delivery-in-asthmatic-children-following-coordinated-and-uncoordinated-inhalation-maneuvers-a-randomized-crossover-trial
#8
Ariel Berlinski, Dirk von Hollen, Ross H M Hatley, Lucy E A Hardaker, Kurt Nikander
BACKGROUND: Valved holding chambers (VHCs) are used in children to deliver pressurized metered dose inhalers (pMDI). In vitro data suggest that uncoordinated use decreases the amount of drug available for inhalation. We hypothesize that in an ex vivo study, the coordinated maneuver will deliver more drug than the uncoordinated one. PATIENTS AND METHODS: Thirty-two clinically stable asthmatic children, ages 5-8 years, completed the study. An aerosol filter was interposed between a small-volume nonelectrostatic VHC and a mouthpiece to capture the drug emitted by one puff of Flovent(®) 220 mcg during tidal breathing...
December 15, 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27974112/-effect-of-early-caffeine-treatment-on-the-need-for-respirator-therapy-in-preterm-infants-with-respiratory-distress-syndrome
#9
Qiao-Zhen Wei, Ping Su, Jin-Tian Han, Xia Zhang, Yu-Hui Duan
OBJECTIVE: To study the efficacy of early caffeine treatment in preterm infants with respiratory distress syndrome (RDS). METHODS: A prospective controlled clinical trial was performed. A total of 59 preterm infants with RDS were enrolled and divided into a caffeine group (30 infants) and a control group (29 infants). Caffeine was administered in the caffeine group and control group at the same dosage at 12-24 hours after birth and before extubation respectively...
December 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/27943294/laryngeal-pacing-for-bilateral-vocal-fold-paralysis-voice-and-respiratory-aspects
#10
Andreas H Mueller, Rudolf Hagen, Claus Pototschnig, Gerhard Foerster, Wilma Grossmann, Katrin Baumbusch, Markus Gugatschka, Tadeus Nawka
OBJECTIVE: To evaluate the effects of neurostimulation with the laryngeal pacemaker (LP) system in patients with bilateral vocal fold paralysis (BVFP) in terms of voice quality and respiratory function. STUDY DESIGN: Feasibility study, first-in-human, single-arm, open-label, prospective, multicenter study with group-sequential design and 6-month follow-up period, as described in details in our previous publication. METHODS: Nine symptomatic BVFP subjects were unilaterally implanted with the LP system at three study sites in Germany and Austria...
December 10, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27918385/neurally-adjusted-ventilatory-assist-in-preterm-infants-with-established-or-evolving-bronchopulmonary-dysplasia-on-high-intensity-mechanical-ventilatory-support-a-single-center-experience
#11
Young Hwa Jung, Han-Suk Kim, Juyoung Lee, Seung Han Shin, Ee-Kyung Kim, Jung-Hwan Choi
OBJECTIVES: The aim of the present study was to report possible improvements in ventilator variables associated with a transition from synchronized intermittent mandatory ventilation to neurally adjusted ventilatory assist in preterm infants with bronchopulmonary dysplasia who required a high level of mechanical ventilatory support in a single center. DESIGN: Retrospective study. SETTING: Neonatal ICU. PATIENTS: Twenty-nine preterm infants with a median gestational age of 25...
December 2016: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/27906705/arterial-pressure-variation-in-elective-noncardiac-surgery-identifying-reference-distributions-and-modifying-factors
#12
Michael R Mathis, Samuel A Schechtman, Milo C Engoren, Amy M Shanks, Aleda Thompson, Sachin Kheterpal, Kevin K Tremper
BACKGROUND: Assessment of need for intravascular volume resuscitation remains challenging for anesthesiologists. Dynamic waveform indices, including systolic and pulse pressure variation, are demonstrated as reliable measures of fluid responsiveness for mechanically ventilated patients. Despite widespread use, real-world reference distributions for systolic and pulse pressure variation values have not been established for euvolemic intraoperative patients. The authors sought to establish systolic and pulse pressure variation reference distributions and assess the impact of modifying factors...
February 2017: Anesthesiology
https://www.readbyqxmd.com/read/27889843/a-randomized-comparison-of-the-ambu-auragain-versus-the-lma-supreme-in-patients-undergoing-gynaecologic-laparoscopic-surgery
#13
Ana M Lopez, Merce Agusti, Pedro Gambus, Montserrat Pons, Teresa Anglada, Ricard Valero
Second generation supraglottic airway devices providing high seal airway pressures are suitable for patients undergoing gynecologic laparoscopy. We compared the seal pressure achieved by the new Ambu AuraGain™ versus LMA Supreme™ following pneumoperitoneum in the Trendelenburg position. Sixty female patients were randomly allocated to ventilation with either the AuraGain or the Supreme. A target-controlled system was used to administer total intravenous anesthesia. Intracuff pressure was maintained below 60 cm H2O...
November 26, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27888836/limited-predictability-of-maximal-muscular-pressure-using-the-difference-between-peak-airway-pressure-and-positive-end-expiratory-pressure-during-proportional-assist-ventilation-pav
#14
Po-Lan Su, Pei-Shan Kao, Wei-Chieh Lin, Pei-Fang Su, Chang-Wen Chen
BACKGROUND: If the proportional assist ventilation (PAV) level is known, muscular effort can be estimated from the difference between peak airway pressure and positive end-expiratory pressure (PEEP) (ΔP) during PAV. We conjectured that deducing muscle pressure from ΔP may be an interesting method to set PAV, and tested this hypothesis using the oesophageal pressure time product calculation. METHODS: Eleven mechanically ventilated patients with oesophageal pressure monitoring under PAV were enrolled...
November 27, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27882142/multicenter-study-on-the-prognosis-associated-with-respiratory-support-for-children-with-acute-hypoxic-respiratory-failure
#15
Fei Guo, Lin Hao, Qing Zhen, Min Diao, Chonglin Zhang
The objective of the present study was to explore the factors influencing the outcomes related to respiratory support of children with acute hypoxic respiratory failure (AHRF) in 30 hospitals. This was a non-controlled prospective and collaborative multicenter clinical study conducted from June, 2010 to May, 2011 (each hospital for 12 consecutive months). Children aged from 29 days to 6 years and who met the diagnostic standards of AHRF were enrolled as subjects for the study. After patients were enrolled, general parameters including disease diagnosis, treatment and prognosis were recorded...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27873331/low-tidal-volume-reduces-lung-inflammation-induced-by-liquid-ventilation-in-piglets-with-severe-lung-injury
#16
Lijun Jiang, Huizhen Feng, Xiaofan Chen, Kaifeng Liang, Chengyao Ni
Total liquid ventilation (TLV) is an alternative treatment for severe lung injury. High tidal volume is usually required for TLV to maintain adequate CO2 clearance. However, high tidal volume may cause alveolar barotrauma. We aim to investigate the effect of low tidal volume on pulmonary inflammation in piglets with lung injury and under TLV. After the establishment of acute lung injury model by infusing lipopolysaccharide, 12 piglets were randomly divided into two groups, TLV with high tidal volume (25 mL/kg) or with low tidal volume (6 mL/kg) for 240 min, respectively...
November 21, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27856936/reveglucosidase-alfa-bmn-701-an-igf-2-tagged-rhacid-%C3%AE-glucosidase-improves-respiratory-functional-parameters-in-a-murine-model-of-pompe-disease
#17
Jeff Peng, Jill Dalton, Mark Butt, Kristin Tracy, Derek Kennedy, Peter Haroldsen, Rhea Cahayag, Stephen Zoog, Charles A O'Neill, Laurie Tsuruda
Pompe disease is a rare neuromuscular disorder caused by an acid α-glucosidase (GAA) deficiency resulting in glycogen accumulation in muscle, leading to myopathy and respiratory weakness. Reveglucosidase alfa (BMN 701), is an insulin-like growth factor 2 (IGF2) tagged rhGAA that enhances rhGAA cellular uptake via a glycosylation independent IGF2-binding region of the cation-independent mannose-6-phosphate receptor (CI-MPR). These studies evaluated the effects of reveglucosidase alfa treatment on glycogen clearance in muscle relative to rhGAA as well as changes in respiratory function and glycogen clearance in respiratory related tissue in a Pompe mouse model (GAA(tm1Rabn))...
November 16, 2016: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27847813/jet-ventilation-during-rigid-bronchoscopy-in-adults-a-focused-review
#18
REVIEW
Laurie Putz, Alain Mayné, Anne-Sophie Dincq
The indications for rigid bronchoscopy for interventional pulmonology have increased and include stent placements and transbronchial cryobiopsy procedures. The shared airway between anesthesiologist and pulmonologist and the open airway system, requiring specific ventilation techniques such as jet ventilation, need a good understanding of the procedure to reduce potentially harmful complications. Appropriate adjustment of the ventilator settings including pause pressure and peak inspiratory pressure reduces the risk of barotrauma...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27847715/analysis-of-pulmonary-function-test-in-korean-patients-with-duchenne-muscular-dystrophy-comparison-of-foreign-and-korean-reference-data
#19
Tae Sik Bang, Woo Hyuk Choi, Sang Hun Kim, Je-Sang Lee, Soo-Yeon Kim, Myung Jun Shin, Yong Beom Shin
OBJECTIVE: To determine the abnormal pulmonary function value in Korean Duchenne muscular dystrophy (DMD) patients, we performed a comparative analysis of the patients' pulmonary function value expressed as % of the overseas reference data and Korean healthy children and adolescent reference data. METHODS: We performed pulmonary function test (PFT) in a total of 27 DMD patients. We compared the patients' FVC% and FEV1% of the overseas reference data with those of the Korean children and adolescent reference data...
October 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27826401/effects-of-ramadan-fasting-on-inspiratory-muscle-function
#20
Mohsen Soori, Shahram Mohaghegh, Maryam Hajain, Behrooz Moraadi
BACKGROUND: Ramadan fasting is a major challenge for exercising Muslims especially in warm seasons. There is some evidence to indicate that Ramadan fasting causes higher subjective ratings of perceived exertion (RPE) in fasting Muslims. The mechanisms of this phenomenon are not known exactly. The role of respiratory muscle strength in this regard has not been studied yet. OBJECTIVES: The aim of this study was investigation of the effects of Ramadan fasting on respiratory muscle strength...
September 2016: Asian Journal of Sports Medicine
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