keyword
MENU ▼
Read by QxMD icon Read
search

Transpulmonary pressure

keyword
https://www.readbyqxmd.com/read/28444079/use-of-noninvasive-ventilation-in-severe-acute-respiratory-distress-syndrome-due-to-accidental-chlorine-inhalation-a-case-report
#1
Adriano Medina Matos, Rodrigo Ribeiro de Oliveira, Mauro Martins Lippi, Rodrigo Ryoji Takatani, Wilson de Oliveira
Acute respiratory distress syndrome is characterized by diffuse inflammatory lung injury and is classified as mild, moderate, and severe. Clinically, hypoxemia, bilateral opacities in lung images, and decreased pulmonary compliance are observed. Sepsis is one of the most prevalent causes of this condition (30 - 50%). Among the direct causes of acute respiratory distress syndrome, chlorine inhalation is an uncommon cause, generating mucosal and airway irritation in most cases. We present a case of severe acute respiratory distress syndrome after accidental inhalation of chlorine in a swimming pool, with noninvasive ventilation used as a treatment with good response in this case...
January 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/28441053/evaluation-of-oxygen-administration-with-a-high-flow-nasal-cannula-to-clinically-normal-dogs
#2
Jennifer L Daly, Christine L Guenther, Jamie M Haggerty, Iain Keir
OBJECTIVE To evaluate the safety and efficacy of oxygen administration by use of a high-flow nasal cannula (HFNC) in sedated clinically normal dogs. ANIMALS 6 healthy adult dogs undergoing routine dental prophylaxis. PROCEDURES Dogs were sedated with butorphanol tartrate and dexmedetomidine. An esophageal balloon catheter was inserted into the esophagus, a double-pronged nasal cannula was inserted into the nares, and a catheter was inserted into the dorsal pedal artery. Dogs were positioned in right lateral recumbency...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28430689/perioperative-outcomes-of-robotic-assisted-hysterectomy-compared-with-open-hysterectomy
#3
Bhargavi Gali, Jamie N Bakkum-Gamez, David J Plevak, Darrell Schroeder, Timothy O Wilson, Christopher J Jankowski
BACKGROUND: Increasing numbers of robotic hysterectomies (RH) are being performed. To provide ventilation (with pneumoperitoneum and steep Trendelenburg position) for these procedures, utilization of lung protective strategies with limiting airway pressures and tidal volumes is difficult. Little is known about the effects of intraoperative mechanical ventilation and high peak airway pressures on perioperative complications. We performed a retrospective review to determine whether patients undergoing RH had increased pulmonary complications compared to total abdominal hysterectomy (TAH)...
April 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28353026/effect-of-milrinone-infusion-on-pulmonary-vasculature-and-stroke-work-indices-a-single-center-retrospective-analysis-in-69-patients-awaiting-cardiac-transplantation
#4
Dmitry Abramov, Nicholas A Haglund, Thomas G Di Salvo
BACKGROUND: Although milrinone infusion is reported to benefit left ventricular function in chronic left heart failure, few insights exist regarding its effects on pulmonary circulation and right ventricular function. METHODS: We retrospectively reviewed right heart catheterization data at baseline and during continuous infusion of milrinone in 69 patients with advanced heart failure and analyzed the effects on ventricular stroke work indices, pulmonary vascular resistance and pulmonary arterial compliance...
March 28, 2017: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
https://www.readbyqxmd.com/read/28306327/fifty-years-of-research-in-ards-respiratory-mechanics-in-acute-respiratory-distress-syndrome
#5
William R Henderson, Lu Chen, Marcelo B P Amato, Laurent J Brochard
Acute respiratory distress syndrome is a multifactorial lung injury that continues to be associated with high levels of morbidity and mortality. Mechanical ventilation, while lifesaving, is associated with new iatrogenic injury. Current best practice involves the use of small tidal volumes, low plateau and driving pressures, and high levels of positive end expiratory pressure. Collectively, these interventions are termed "lung protective ventilation". Recent investigations suggest that individualized measurements of pulmonary mechanical variables rather than population based ventilation prescriptions may be used to set the ventilator with the potential to improve outcomes beyond those achieved with standard lung protective ventilation...
March 17, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28295526/pharmacological-treatments-in-asthma-affected-horses-a-pair-wise-and-network-meta-analysis
#6
L Calzetta, P Roncada, D di Cave, L Bonizzi, A Urbani, E Pistocchini, P Rogliani, M G Matera
BACKGROUND: Equine asthma is a disease characterised by reversible airflow obstruction, bronchial hyperresponsiveness and airway inflammation following exposure of susceptible horses to specific airborne agents. Although clinical remission can be achieved in a low-airborne dust environment, repeated exacerbations may lead to irreversible airway remodelling. The available data on the pharmacotherapy of equine asthma results from several small studies, and no head-to-head clinical trials have been conducted among the available medications...
March 10, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28288587/the-value-of-arterial-pressure-waveform-cardiac-output-measurements-in-the-radial-and-femoral-artery-in-major-cardiac-surgery-patients
#7
A van Drumpt, J van Bommel, S Hoeks, F Grüne, T Wolvetang, J Bekkers, M Ter Horst
BACKGROUND: A relatively new uncalibrated arterial pressure waveform cardiac output (CO) measurement technique is the Pulsioflex-ProAQT® system. Aim of this study was to validate this system in cardiac surgery patients with a specific focus on the evaluation of a difference in the radial versus the femoral arterial access, the value of the auto-calibration modus and the ability to show fluid-induced changes. METHODS: In twenty-five patients scheduled for ascending aorta, aortic arch replacement, or both we measured CO simultaneously by transpulmonary thermodilution (COtd) and by using the ProAQT® system connected to the radial (COpR), as well as the femoral artery catheter (COpF)...
March 14, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28212050/volume-controlled-ventilation-does-not-prevent-injurious-inflation-during-spontaneous-effort
#8
Takeshi Yoshida, Susumu Nakahashi, Maria Aparecida Miyuki Nakamura, Yukiko Koyama, Rollin Roldan, Vinicius Torsani, Roberta R De Santis, Susimeire Gomes, Akinori Uchiyama, Marcelo B P Amato, Brian P Kavanagh, Yuji Fujino
RATIONALE: Spontaneous breathing during mechanical ventilation increases transpulmonary pressure and tidal volume, and worsens lung injury. Intuitively, controlling tidal volume and transpulmonary pressure might limit injury from added spontaneous effort. OBJECTIVES: To test the hypothesis that during spontaneous effort in injured lungs, tidal volume and transpulmonary pressure limitation by volume-controlled ventilation results in less injurious patterns of inflation...
February 17, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28146639/fifty-years-of-research-in-ards-setting-positive-end-expiratory-pressure-in-the-acute-respiratory-distress-syndrome
#9
Sarina K Sahetya, Ewan C Goligher, Roy G Brower
Positive end-expiratory pressure (PEEP) has been utilized during mechanical ventilation since the first description of the acute respiratory distress syndrome (ARDS). In the subsequent decades, many different strategies for optimally titrating PEEP have been proposed. Higher PEEP can improve arterial oxygenation, reduce tidal lung stress and strain, and promote more homogenous ventilation by preventing alveolar collapse at end expiration. However, PEEP may also cause circulatory depression and contribute to ventilator-induced lung injury through alveolar overdistention...
February 1, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28090301/pulmonary-pulse-wave-transit-time-is-associated-with-right-ventricular-pulmonary-artery-coupling-in-pulmonary-arterial-hypertension
#10
Kurt W Prins, E Kenneth Weir, Stephen L Archer, Jeremy Markowitz, Lauren Rose, Marc Pritzker, Richard Madlon-Kay, Thenappan Thenappan
Pulmonary pulse wave transit time (pPTT), defined as the time for the systolic pressure pulse wave to travel from the pulmonary valve to the pulmonary veins, has been reported to be reduced in pulmonary arterial hypertension (PAH); however, the underlying mechanism of reduced pPTT is unknown. Here, we investigate the hypothesis that abbreviated pPTT in PAH results from impaired right ventricular-pulmonary artery (RV-PA) coupling. We quantified pPTT using pulsed-wave Doppler ultrasound from 10 healthy age- and sex-matched controls and 36 patients with PAH...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28062514/cardiopulmonary-exercise-testing-for-detecting-pulmonary-arterial-hypertension-in-systemic-sclerosis
#11
Daniel Dumitrescu, Christian Nagel, Gabor Kovacs, Tom Bollmann, Michael Halank, Jörg Winkler, Martin Hellmich, Ekkehard Grünig, Horst Olschewski, Ralf Ewert, Stephan Rosenkranz
OBJECTIVES: Pulmonary arterial hypertension (PAH) is a devastating disease with limited survival and occurs as a frequent complication in patients with systemic sclerosis (SSc). A definite diagnosis of PAH is obtained by right heart catheterisation (RHC); however, the initial suspicion is raised by non-invasive methods. We assessed the diagnostic accuracy of key parameters derived from cardiopulmonary exercise testing (CPET) for detecting and ruling out SSc-associated PAH. METHODS: In a multicentre setting, we prospectively evaluated 173 consecutive patients with SSc without known PAH, but with clinical suspicion of PAH...
January 6, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28039242/non-invasive-assessment-of-fluid-responsiveness-using-cnap%C3%A2-technology-is-interchangeable-with-invasive-arterial-measurements-during-major-open-abdominal-surgery
#12
J Renner, M Gruenewald, M Hill, L Mangelsdorff, H Aselmann, C Ilies, M Steinfath, O Broch
BACKGROUND: Dynamic variables of fluid responsiveness (FR), such as pulse pressure variation (PPV), have been shown to predict the response to a fluid challenge accurately. A recently introduced non-invasive technology based on the volume-clamp method (CNAP™) offers the ability to measure PPV continuously (PPVCNAP). However, the accuracy regarding the prediction of FR in the operating room has to be proved. METHODS: We compared PPVCNAP with an invasive approach measuring PPV using the PiCCO technology (PPVPiCCO)...
January 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28036088/current-concepts-of-ards-a-narrative-review
#13
REVIEW
Michele Umbrello, Paolo Formenti, Luca Bolgiaghi, Davide Chiumello
Acute respiratory distress syndrome (ARDS) is characterized by the acute onset of pulmonary edema of non-cardiogenic origin, along with bilateral pulmonary infiltrates and reduction in respiratory system compliance. The hallmark of the syndrome is refractory hypoxemia. Despite its first description dates back in the late 1970s, a new definition has recently been proposed. However, the definition remains based on clinical characteristic. In the present review, the diagnostic workup and the pathophysiology of the syndrome will be presented...
December 29, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28013329/effects-of-neuromuscular-blockers-on-transpulmonary-pressures-in-moderate-to-severe-acute-respiratory-distress-syndrome
#14
Christophe Guervilly, Magali Bisbal, Jean Marie Forel, Malika Mechati, Samuel Lehingue, Jeremy Bourenne, Gilles Perrin, Romain Rambaud, Melanie Adda, Sami Hraiech, Elisa Marchi, Antoine Roch, Marc Gainnier, Laurent Papazian
PURPOSE: To investigate whether neuromuscular blocking agents (NMBA) exert beneficial effects in acute respiratory distress syndrome (ARDS) by reason of their action on respiratory mechanics, particularly transpulmonary pressures (P L). METHODS: A prospective randomised controlled study in patients with moderate to severe ARDS within 48 h of the onset of ARDS. All patients were monitored by means of an oesophageal catheter and followed up for 48 h. Moderate ARDS patients were randomised into two groups according to whether they were given a 48-h continuous infusion of cisatracurium besylate or not (control group)...
March 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28000205/early-severe-acute-respiratory-distress-syndrome-what-s-going-on-part-ii-controlled-vs-spontaneous-ventilation
#15
REVIEW
Fabrice Petitjeans, Cyrille Pichot, Marco Ghignone, Luc Quintin
The second part of this overview on early severe ARDS delineates the pros and cons of the following: a) controlled mechanical ventilation (CMV: lowered oxygen consumption and perfect patient-to-ventilator synchrony), to be used during acute cardio-ventilatory distress in order to "buy time" and correct circulatory insufficiency and metabolic defects (acidosis, etc.); b) spontaneous ventilation (SV: improved venous return, lowered intrathoracic pressure, absence of muscle atrophy). Given a stabilized early severe ARDS, as soon as the overall clinical situation improves, spontaneous ventilation will be used with the following stringent conditionalities: upfront circulatory optimization, upright positioning, lowered VO2, lowered acidotic and hypercapnic drives, sedation without ventilatory depression and without lowered muscular tone, as well as high PEEP (titrated on transpulmonary pressure, or as a second best: "trial"-PEEP) with spontaneous ventilation + pressure support (or newer modes of ventilation)...
2016: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28000204/early-severe-acute-respiratory-distress-syndrome-what-s-going-on-part-i-pathophysiology
#16
REVIEW
Fabrice Petitjeans, Cyrille Pichot, Marco Ghignone, Luc Quintin
Severe acute respiratory distress syndrome (ARDS, PaO₂/FiO₂ < 100 on PEEP ≥ 5 cm H₂O) is treated using controlled mechanical ventilation (CMV), recently combined with muscle relaxation for 48 h and prone positioning. While the amplitude of tidal volume appears set < 6 mL kg⁻¹, the level of positive end-expiratory pressure (PEEP) remains controversial. This overview summarizes several salient points, namely: a) ARDS is an oxygenation defect: consolidation/ difuse alveolar damage is reversed by PEEP and/or prone positioning, at least during the early phase of ARDS b) ARDS is a dynamic disease and partially iatrogenic...
2016: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/27999948/overestimation-by-echocardiography-of-the-peak-systolic-pressure-gradient-between-the-right-ventricle-and-right-atrium-due-to-tricuspid-regurgitation-and-the-usefulness-of-the-early-diastolic-transpulmonary-valve-pressure-gradient-for-estimating-pulmonary-artery
#17
Takuma Hioka, Sanae Kaga, Taisei Mikami, Kazunori Okada, Michito Murayama, Nobuo Masauzi, Masahiro Nakabachi, Hisao Nishino, Shinobu Yokoyama, Mutsumi Nishida, Hiroyuki Iwano, Mamoru Sakakibara, Satoshi Yamada, Hiroyuki Tsutsui
We investigated the influence of tricuspid regurgitation (TR) severity on the echocardiographic peak systolic transtricuspid pressure gradient (TRPG) and evaluated the usefulness of the peak early diastolic transpulmonary valve pressure gradient (PRPG) for estimating pulmonary artery (PA) pressure. In 55 consecutive right heart-catheterized patients, we measured the peak systolic right ventricular (RV)-right atrial (RA) pressure gradient (RV-RACATH), peak early diastolic PA-RV pressure gradient (PA-RVCATH), and mean PA pressure (MPAPCATH)...
December 20, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27984249/predicting-fluid-responsiveness-in-acute-liver-failure-a-prospective-study
#18
Vinod Kumar Audimoolam, Mark J W McPhail, Chris Willars, William Bernal, Julia A Wendon, Maurizio Cecconi, Georg Auzinger
BACKGROUND: The profound hemodynamic changes seen in acute liver failure (ALF) resemble the hyperdynamic state found in the later stages of septic shock. Vasopressor support frequently is required after initial volume therapy. Markers of preload dependency have not been studied in this patient group. Dynamic maneuvers such as passive leg raising or end-expiratory hold, which have shown good predictive accuracy in a general intensive care unit population, cannot be considered safe in this cohort because of the concerns of intracranial hypertension...
February 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27979983/accelerated-deflation-promotes-homogeneous-airspace-liquid-distribution-in-the-edematous-lung
#19
You Wu, Tam L Nguyen, Carrie E Perlman
Edematous lungs contain regions with heterogeneous alveolar flooding. Liquid is trapped in flooded alveoli by a pressure barrier-higher liquid pressure at the border than in the center of flooded alveoli-that is proportional to surface tension, T Stress is concentrated between aerated and flooded alveoli, to a degree proportional to T Mechanical ventilation, by cyclically increasing T, injuriously exacerbates stress concentrations. Overcoming the pressure barrier to redistribute liquid more homogeneously between alveoli should reduce stress concentration prevalence and ventilation injury...
April 1, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27903671/sports-related-lung-injury-during-breath-hold-diving
#20
REVIEW
Tanja Mijacika, Zeljko Dujic
The number of people practising recreational breath-hold diving is constantly growing, thereby increasing the need for knowledge of the acute and chronic effects such a sport could have on the health of participants. Breath-hold diving is potentially dangerous, mainly because of associated extreme environmental factors such as increased hydrostatic pressure, hypoxia, hypercapnia, hypothermia and strenuous exercise.In this article we focus on the effects of breath-hold diving on pulmonary function. Respiratory symptoms have been reported in almost 25% of breath-hold divers after repetitive diving sessions...
December 2016: European Respiratory Review: An Official Journal of the European Respiratory Society
keyword
keyword
10660
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"