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positive pressure ventilation

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https://www.readbyqxmd.com/read/28228388/intraoral-ulcer-due-to-non-invasive-positive-pressure-ventilation-an-overlooked-complication
#1
Katsunori Masaki, Atsushi Chiyotani, Ichiro Nakachi
No abstract text is available yet for this article.
February 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28227085/an-object-oriented-model-of-the-cardiopulmonary-system-with-emphasis-on-the-gravity-effect
#2
Chuong Ngo, Silvia Briones Herranz, Berno Misgeld, Thomas Vollmer, Steffen Leonhardt, Chuong Ngo, Silvia Briones Herranz, Berno Misgeld, Thomas Vollmer, Steffen Leonhardt, Thomas Vollmer, Steffen Leonhardt, Chuong Ngo, Berno Misgeld
We introduce a novel comprehensive model of the cardiopulmonary system with emphasis on perfusion and ventilation distribution along the vertical thorax axis under the gravity effect. By using an object-oriented environment, the complex physiological system can be represented by a network of electrical, lumped-element compartments. The lungs are divided into three zones: upper, middle, and lower zone. Blood flow increases with the distance from the apex to the base of the lungs. The upper zone is characterized by a complete collapse of the pulmonary capillary vasculature; thus, there is no flow in this zone...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227081/noninvasive-estimation-of-alveolar-pressure
#3
Francesco Vicario, Roberto Buizza, William A Truschel, Nicolas W Chbat, Francesco Vicario, Roberto Buizza, William A Truschel, Nicolas W Chbat, Francesco Vicario, Roberto Buizza, Nicolas W Chbat, William A Truschel
This paper presents an algorithm for noninvasive estimation of alveolar pressure in mechanically ventilated patients who are spontaneously breathing. Continual monitoring of alveolar pressure is desirable to prevent ventilator-induced lung injury and to assess the intrinsic positive end-expiratory pressure (PEEPi), which is a parameter of clinical relevance in respiratory care and difficult to measure noninvasively. The algorithm is based on a physiological model of the respiratory system and, as such, it also provides insight into the respiratory mechanics of the patient under mechanical ventilation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223010/the-role-of-heated-humidified-high-flow-nasal-cannula-as-noninvasive-respiratory-support-in-neonates
#4
REVIEW
Ke-Yun Chao, Yi-Ling Chen, Li-Yi Tsai, Yu-Hsuan Chien, Shu-Chi Mu
Recently, heated humidified high-flow nasal cannula (HHHFNC) has been introduced and applied as a noninvasive respiratory support in neonates. Although HHHFNC is widely used in neonates presenting with respiratory distress, the efficiency and safety when compared with nasal continuous positive airway pressure or noninvasive positive pressure ventilation are still controversial. This review aims to evaluate the performance and applications of HHHFNC in neonates.
January 17, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28222644/use-of-the-injection-test-to-indicate-the-oesophageal-balloon-position-in-patients-without-spontaneous-breathing-a-clinical-feasibility-study
#5
Han Chen, Yan-Lin Yang, Ming Xu, Zhong-Hua Shi, Xuan He, Xiu-Mei Sun, Xu-Ying Luo, Guang-Qiang Chen, Jian-Xin Zhou
Objective To investigate the clinical feasibility of the injection test for balloon placement during oesophageal pressure measurement in patients without spontaneous breathing. Methods The injection test was performed in 12 mechanically ventilated patients under deep sedation and paralysis. During withdrawal of the balloon from the stomach and air injection into the gastric lumen of the catheter, the presence of the injection test wave in the balloon pressure tracing indicated that the whole balloon was positioned above the lower oesophageal sphincter (LES)...
February 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28220822/pulmonary-outcomes-following-specialized-respiratory-management-for-acute-cervical-spinal-cord-injury-a-retrospective-analysis
#6
E C Zakrasek, J L Nielson, J J Kosarchuk, J D Crew, A R Ferguson, S L McKenna
STUDY DESIGN: Retrospective analysis. OBJECTIVES: To identify multivariate interactions of respiratory function that are sensitive to spinal cord injury level and pharmacological treatment to promote strategies that increase successful liberation from mechanical ventilation. SETTING: United States regional spinal cord injury (SCI) treatment center. METHODS: Retrospective chart review of patients consecutively admitted to Santa Clara Valley Medical Center between May 2013 and December 2014 for ventilator weaning with C1-C5 American Spinal Injury Association Impairment Scale (AIS) A or B SCI, <3 months from injury and who had a tracheostomy in place...
February 21, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28219323/a-preliminary-assessment-of-the-lma-protector%C3%A2-in-non-paralysed-patients
#7
Ban Leong Sng, Farida Binte Ithnin, Deepak Mathur, Eileen Lew, Nian-Lin Reena Han, Alex Tiong-Heng Sia
BACKGROUND: The LMA Protector™ is the latest CE marked single use supraglottic airway device. This airway device provides access and functional separation of the respiratory and digestive tracts. There are two ports (male, female ports) to provide suction in the laryngeal region and insertion of the gastric tube. The aim of our study is to assess the ease of use, airway quality, device positioning, airway leak and complications associated with initial clinical experience in LMA Protector™ usage...
February 20, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28219187/-clinical-application-of-acutegastrointestinal-injury-grading-system-assocaited-with-clinical-severity-outcome-in-critically-ill-patients-a-multi-center-prospective-observational-study
#8
B C Hu, R H Sun, A P Wu, Y Ni, J Q Liu, L J Ying, Q P Xu, G P Ge, Y C Shi, C W Liu, L Xu, R H Lin, R L Jiang, J Lu, Y N Zhu, W D Wu, X J Ding, B Xie
Objective: To investigate the feasibility of utilizing the current acute gastrointestinal injury(AGI) grading system, and explore the association of severity of AGI grade with clinical outcome in critically ill patients. Methods: The adult patients from 14 general ICUs in Zhejiang Province with an expected admission to ICU for at least 24 h were recruited, and all clinical, laboratory, and survival data were prospectively collected. The AGI grade was daily assessed based on GIsymptoms, feeding details and organ dysfunctionon the first week of admission to ICU...
February 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28218802/non-invasive-ventilation-for-cystic-fibrosis
#9
REVIEW
Fidelma Moran, Judy M Bradley, Amanda J Piper
BACKGROUND: Non-invasive ventilation may be a means to temporarily reverse or slow the progression of respiratory failure in cystic fibrosis by providing ventilatory support and avoiding tracheal intubation. Using non-invasive ventilation, in the appropriate situation or individuals, can improve lung mechanics through increasing airflow and gas exchange and decreasing the work of breathing. Non-invasive ventilation thus acts as an external respiratory muscle. This is an update of a previously published review...
February 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28217183/affection-of-the-respiratory-muscles-in-combined-complex-i-and-iv-deficiency
#10
Josef Finsterer, Helmut Rauschka, Liane Segal, Gabor G Kovacs, Boris Rolinski
OBJECTIVES: Combined complex I+IV deficiency has rarely been reported to manifest with the involvement of the respiratory muscles. CASE REPORT: A 45y male was admitted for hypercapnia due to muscular respiratory insufficiency. He required intubation and mechanical ventilation. He had a previous history of ophthalmoparesis since age 6y, ptosis since age 23y, and anterocollis since at least age 40y. Muscle biopsy from the right deltoid muscle at age 41y was indicative of mitochondrial myopathy...
2017: Open Neurology Journal
https://www.readbyqxmd.com/read/28216699/comparison-of-volume-controlled-ventilation-and-pressure-controlled-ventilation-in-patients-undergoing-robot-assisted-pelvic-surgeries-an-open-label-trial
#11
Rishabh Jaju, Pooja Bihani Jaju, Mamta Dubey, Sadik Mohammad, A K Bhargava
BACKGROUND AND AIMS: Although volume controlled ventilation (VCV) has been the traditional mode of ventilation in robotic surgery, recently pressure controlled ventilation (PCV) has been used more frequently. However, evidence on whether PCV is superior to VCV is still lacking. We intended to compare the effects of VCV and PCV on respiratory mechanics and haemodynamic in patients undergoing robotic surgeries in steep Trendelenburg position. METHODS: This prospective, randomized trial was conducted on sixty patients between 20 and 70 years belonging to the American Society of Anesthesiologist Physical Status I-II...
January 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28214793/evaluation-of-timing-and-route-of-epinephrine-in-a-neonatal-model-of-asphyxial-arrest
#12
Payam Vali, Praveen Chandrasekharan, Munmun Rawat, Sylvia Gugino, Carmon Koenigsknecht, Justin Helman, William J Jusko, Bobby Mathew, Sara Berkelhamer, Jayasree Nair, Myra H Wyckoff, Satyan Lakshminrusimha
BACKGROUND: Epinephrine administered by low umbilical venous catheter (UVC) or endotracheal tube (ETT) is indicated in neonates who fail to respond to positive pressure ventilation and chest compressions at birth. Pharmacokinetics of ETT epinephrine via fluid-filled lungs or UVC epinephrine in the presence of fetal shunts is unknown. We hypothesized that epinephrine administered by ETT or low UVC results in plasma epinephrine concentrations and rates of return of spontaneous circulation (ROSC) similar to right atrial (RA) epinephrine...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28213557/tension-pneumocephalus-induced-by-high-flow-nasal-cannula-ventilation-in-a-neonate
#13
Alicia Iglesias-Deus, Alejandro Pérez-Muñuzuri, Olalla López-Suárez, Pilar Crespo, Maria-Luz Couce
The use of high-flow nasal cannula (HFNC) therapy as respiratory support for preterm infants has increased rapidly worldwide. The evidence available for the use of HFNC is as an alternative to nasal continuous positive airway pressure (CPAP) and in particular to prevent postextubation failure. We report a case of tension pneumocephalus in a preterm infant as a complication during HFNC ventilation. Significant neurological impairment was detected and support was eventually withdrawn. Few cases of pneumocephalus as a complication of positive airway pressure have been reported in the neonatal period, and they all have been related to CPAP...
March 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28213266/noninvasivepositive-pressure-ventilation-vsinvasive-mechanical-ventilation-as-first-line-therapy-for-acute-hypoxemic-respiratory-failure-in-cancer-patients
#14
Nisha K Rathi, Sajid A Haque, Ron Nates, Alyssa Kosturakis, Hao Wang, Wenli Dong, Lei Feng, Rose J Erfe, Christina Guajardo, Laura Withers, Clarence Finch, Kristen J Price, Joseph L Nates
PURPOSE: The objective was to describe the characteristics and outcomes of critically ill cancer patients who received noninvasive positive pressure ventilation (NIPPV) vs invasive mechanical ventilation as first-line therapy for acute hypoxemic respiratory failure. MATERIAL AND METHODS: A retrospective cohort study of consecutive adult intensive care unit (ICU) cancer patients who received either conventional invasive mechanical ventilation or NIPPV as first-line therapy for hypoxemic respiratory failure...
January 20, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28207971/emergency-department-initiated-home-oxygen-for-bronchiolitis-a-prospective-study-of-community-follow-up-caregiver-satisfaction-and-outcomes
#15
Julia Fuzak Freeman, Sara Deakyne, Lalit Bajaj
OBJECTIVE: Retrospective studies performed have shown home oxygen to be a safe alternative to hospitalization for some patients with bronchiolitis living at high altitudes. We aimed to prospectively describe adverse events, follow-up, duration of home oxygen, factors associated with failure, and caregiver preferences. METHODS: This was a prospective observational study of hypoxemic bronchiolitis patients ages 3-18months who were discharged from a tertiary care pediatric emergency department on home oxygen over 3 winters (2011-2014)...
February 16, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28203337/comparison-of-the-efficacy-of-three-natural-surfactants-curosurf-survanta-and-alveofact-in-the-treatment-of-respiratory-distress-syndrome-among-neonates-a-randomized-controlled-trial
#16
Mirhadi Mussavi, Keyvan Mirnia, Khairollah Asadollahi
BACKGROUND: Although several different types of natural surfactants are available, including Alveofact, Curosurf, and Survanta, the preferred type and the magnitude of their effects are unknown. OBJECTIVES: This study was designed to compare the effects of these three surfactants on the gas exchange and clinical outcomes of neonates with respiratory distress syndrome (RDS). METHODS: This triple-blind randomized clinical trial studied all preterm neonates ≤ 37 weeks with RDS who were admitted to the neonatal intensive care unit (NICU) of Taleghani hospital (Tabriz, Iran) between 2012 and 2013...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28202896/effect-of-mild-hypercapnia-on-lung-oxygenation-in-sitting-position-during-shoulder-arthroscopy-under-general-anesthesia
#17
Hyun Jeong Kwak, Ji Yeon Lee, Jong Wha Lee, Hong Soon Kim, Ho Jin Hur, Ji Young Kim
BACKGROUND Mild hypercapnia is permitted during surgeries in sitting position under general anesthesia to maintain cerebral regional oxygen saturation (rSO2). However, since hypoventilation may cause gas exchange impairment, we evaluated effects of mild hypercapnia on lung oxygenation during shoulder arthroscopy in sitting position. MATERIAL AND METHODS Forty patients were randomly allocated to a normocapnia group (ETCO2 35 mmHg, n=20) or a hypercapnia group (45 mmHg, n=20). The mean arterial pressure (MAP), heart rate (HR), and rSO2 were measured 5 min after intubation in supine position (T0), and at 2, 4, 6, 8, 10, 20, 30, 40, 50, and 60 min of remaining in sitting position (T1-10)...
February 16, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28192893/non-invasive-ventilation-improves-respiratory-distress-in-children-with-acute-viral-bronchiolitis-a-systematic-review
#18
Yann Combret, Guillaume Prieur, Pascal LE Roux, Clément Médrinal
BACKGROUND: Non-invasive ventilation (NIV) is a common treatment for bronchiolitis. However, consensus concerning its efficacy is lacking. The aim of this systematic review was to assess NIV effectiveness to reduce respiratory distress. Secondary objectives were to summarize the effects of NIV, identify predictive factors for failure and describe settings and applications. METHODS: Searches were conducted in MEDLINE Pubmed, PEDro, COCHRANE, EMBASE, CINAHL, Web of Science, Up-todate and Sudoc from 1990 to April 2015...
February 13, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28187374/the-strengths-and-weaknesses-of-non-invasive-parameters-obtained-by-echocardiography-and-cardiopulmonary-exercise-testing-in-comparison-with-the-hemodynamic-assessment-by-the-right-heart-catheterization-in-patients-with-pulmonary-hypertension
#19
Katarzyna Ptaszyńska-Kopczyńska, Anna Krentowska, Emilia Sawicka, Anna Skoneczny, Małgorzata Jasiewicz, Małgorzata Knapp, Włodzimierz J Musiał, Bożena Sobkowicz, Karol A Kamiński
PURPOSE: Pulmonary hypertension (PH) diagnosis requires invasive assessment by right heart catheterization (RHC), but screening and monitoring are performed using non-invasive methods: echocardiography and cardiopulmonary exercise testing (CPET). The aim of the study was to assess correlations between the parameters obtained in non-invasive testing and RHC in patients with PH of different etiologies. MATERIAL/METHODS: The study included 53 medical records of PH patients (32 women) aged 29-81 years...
June 14, 2016: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28187051/kinetics-of-plasma-biomarkers-of-inflammation-and-lung-injury-in-surgical-patients-with-or-without-postoperative-pulmonary-complications
#20
Ary Serpa Neto, Pedro P Z A Campos, Sabrine N T Hemmes, Lieuwe D Bos, Thomas Bluth, Marion Ferner, Andreas Güldner, Markus W Hollmann, Inmaculada India, Thomas Kiss, Rita Laufenberg-Feldmann, Juraj Sprung, Demet Sulemanji, Carmen Unzueta, Marcos F Vidal Melo, Toby N Weingarten, Anita M Tuip-de Boer, Paolo Pelosi, Marcelo Gama de Abreu, Marcus J Schultz
BACKGROUND: Postoperative pulmonary complications (PPCs) are common after major abdominal surgery. The kinetics of plasma biomarkers could improve identification of patients developing PPCs, but the kinetics may depend on intraoperative ventilator settings. OBJECTIVE: To test whether the kinetics of plasma biomarkers are capable of identifying patients who will develop PPCs, and whether the kinetics depend on the intraoperative level of positive end-expiratory pressure (PEEP)...
February 9, 2017: European Journal of Anaesthesiology
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