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Peak inspiratory pressure

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https://www.readbyqxmd.com/read/28184267/prediction-of-endotracheal-tube-size-for-pediatric-patients-from-the-epiphysis-diameter-of-radius
#1
Hee Young Kim, Ji Hyun Cheon, Seung Hoon Baek, Kyung Hoon Kim, Tae Kyun Kim
BACKGROUND: Using a too big or a too small size of an endotracheal tube in pediatric patients would result in tracheal injury or insufficient ventilation. Determining the appropriate endotracheal tube size is important because using an inappropriate size can cause complications. This study was performed to predict the appropriate endotracheal tube size by measuring the transverse diameter of the epiphysis of the distal radius under the assumption that the growth rates of cartilages in the entire body are close to each other...
February 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28144134/evaluation-of-carbon-dioxide-rebreathing-during-exercise-assisted-by-noninvasive-ventilation-with-plateau-exhalation-valve
#2
Yong-Er Ou, Zhi-Min Lin, Dong-Ming Hua, Ying Jiang, Ya-Ting Huo, Qun Luo, Rong-Chang Chen
Noninvasive ventilation with a plateau exhalation valve (PEV) is often used as an adjunct to exercise to achieve a physiologic training effect in severe chronic obstructive pulmonary disease (COPD) patients. However, during exercise, with the increase of exhalation flow and respiratory rate and limited capability of PEV to exhale gases out of the circuit, it is still unknown whether CO2 rebreathing occurs in COPD patients ventilated during exercise assisted by single-limb circuit with a PEV. A maximal symptom-limited cycle exercise test was performed while ventilated on pressure support (inspiratory:expiratory pressure 14:4 cmH2O) in 18 male patients with stable severe COPD (mean ± standard deviation, forced expiratory volume in 1 s: 29...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28124234/dynamic-driving-pressure-associated-mortality-in-acute-respiratory-distress-syndrome-with-extracorporeal-membrane-oxygenation
#3
Li-Chung Chiu, Han-Chung Hu, Chen-Yiu Hung, Chih-Hao Chang, Feng-Chun Tsai, Cheng-Ta Yang, Chung-Chi Huang, Huang-Pin Wu, Kuo-Chin Kao
BACKGROUND: The survival predictors and optimal mechanical ventilator settings in patients with severe acute respiratory distress syndrome (ARDS) undergoing extracorporeal membrane oxygenation (ECMO) are uncertain. This study was designed to investigate the influences of clinical variables and mechanical ventilation settings on the outcomes for severe ARDS patients receiving ECMO. METHODS: We reviewed severe ARDS patients who received ECMO due to refractory hypoxemia from May 2006 to October 2015...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28116675/anesthetic-considerations-for-patients-with-esophageal-achalasia-undergoing-peroral-endoscopic-myotomy-a-retrospective-case-series-review
#4
Benjamin Löser, Yuki B Werner, Mark A Punke, Bernd Saugel, Sebastian Haas, Daniel A Reuter, Oliver Mann, Anna Duprée, Guido Schachschal, Thomas Rösch, Martin Petzoldt
PURPOSE: Peroral endoscopic myotomy (POEM) is a novel technique for treating esophageal achalasia. During POEM, carbon dioxide (CO2) is insufflated to aid surgical dissection, but it may inadvertently track into surrounding tissues, causing systemic CO2 uptake and tension capnoperitoneum. This in turn may affect cardiorespiratory function. This study quantified these cardiorespiratory effects and treatment by hyperventilation and percutaneous abdominal needle decompression (PND). METHODS: One hundred and seventy-three consecutive patients who underwent POEM were included in this four-year retrospective study...
January 23, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28108076/safety-and-effectiveness-of-alveolar-recruitment-maneuvers-and-positive-end-expiratory-pressure-during-general-anesthesia-for-cesarean-section-a-prospective-randomized-trial
#5
D Aretha, F Fligou, P Kiekkas, C Messini, E Panteli, E Zintzaras, M Karanikolas
INTRODUCTION: During cesarean section, the supine position reduces functional residual capacity and worsens lung compliance. We tested the hypothesis that alveolar recruitment maneuvers and positive end-expiratory pressure improve lung compliance in women undergoing general anesthesia for cesarean section. METHODS: Ninety women undergoing cesarean section were randomly assigned to one of two groups in a prospective, double-blind trial. In the alveolar recruitment maneuver group, pressure-control ventilation was used and inspiratory time was increased to 50% after delivery; positive end-expiratory pressure was increased to 20cmH2O and peak airway inspiratory pressure gradually increased to 45-50cmH2O...
December 23, 2016: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28094413/electrical-impedance-tomography-for-lung-ventilation-monitoring-of-the-dog
#6
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...
February 9, 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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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