keyword
MENU ▼
Read by QxMD icon Read
search

Hyperoxygenation

keyword
https://www.readbyqxmd.com/read/28346330/differentiation-of-impaired-from-preserved-hemodynamics-in-patients-with-fontan-circulation-using-real-time-phase-velocity-cardiovascular-magnetic-resonance
#1
Hermann Körperich, Katja Müller, Peter Barth, Jürgen Gieseke, Nikolaus Haas, Ingram Schulze-Neick, Wolfgang Burchert, Deniz Kececioglu, Kai T Laser
PURPOSE: Progressive impairment of hemodynamics in patients with Fontan circulation is common, multifactorial, and associated with decreased quality of life and increased morbidity. We sought to assess hemodynamic differences between patients with preserved (preserved Fontans) and those with impaired circulation (impaired Fontans) after pulmonary vasodilation using oxygen and under forced breathing conditions. MATERIALS AND METHODS: Real-time phase-contrast cardiovascular magnetic resonance was performed using non-ECG triggered echo-planar imaging (temporal resolution=24 to 28 ms) in the ascending aorta (AAo) and superior vena cava (SVC)/inferior vena cava (IVC) on room air, after 100% oxygen inhalation (4 L/min; 10 min) and on forced breathing in 29 Fontan patients (17...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28277990/preventing-facial-pressure-ulcers-in-patients-under-non-invasive-mechanical-ventilation-a-randomised-control-trial
#2
RANDOMIZED CONTROLLED TRIAL
D Peña Otero, D Vazquez Domínguez, L Hernanz Fernández, A Santano Magariño, V Jimenez González, J V García Klepzing, J V Beneit Montesinos
OBJECTIVE: To comparatively assess the efficacy of four different therapeutic strategies to prevent the development of facial pressure ulcers (FPUs) related to the use of non-invasive mechanical ventilation (NIV) with oro-nasal masks in critically ill hospitalised patients. METHOD: This randomised control trial was performed at the high dependency unit in the University General Hospital Gregorio Marañón in Madrid, Spain. Overall, 152 patients with acute respiratory failure were recruited...
March 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28277907/the-effect-of-maternal-hyperoxygenation-on-fetal-circulatory-system-in-normal-growth-and-iugr-fetuses-what-we-can-learn-from-this-impact
#3
Nizar Khatib, Israel Thaler, Ron Beloosesky, Hanin Dabaja, Nadir Ganem, Philippe Abecassis, Yuval Ginsberg, Zeev Weiner
PURPOSE: The objectives of study were to assess and compare the effects of maternal hyperoxygenation on fetal circulation, in fetuses with intrauterine growth retardation and normal fetal growth. METHODS: Twelve singleton pregnant women with normal fetal growth and 12 singleton pregnant women with intrauterine growth restriction were recruited. Mean gestational age of 35.2 ± 3.5 and 34.7 ± 3.9 weeks, respectively. Doppler blood flow velocity waveforms were obtained from the middle cerebral artery, umbilical, main and proximal right pulmonary arteries...
March 21, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28263176/enhancing-uniformity-and-overall-quality-of-red-cell-concentrate-with-anaerobic-storage
#4
Tatsuro Yoshida, Abbejane Blair, Angelo D'alessandro, Travis Nemkov, Michael Dioguardi, Christopher C Silliman, Andrew Dunham
BACKGROUND: Recent research focused on understanding stored red blood cell (RBC) quality has demonstrated high variability in measures of RBC function and health across units. Studies have historically linked this high variability to variations in processing, storage method, and age. More recently, a large number of studies have focused on differences in donor demographics, donor iron sufficiency, and genetic predisposition of the donor to poor storage, particularly through mechanisms of accelerated oxidative damage...
March 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28185721/approaches-and-adjuncts-used-by-physiotherapists-when-suctioning-adult-patients-who-are-intubated-and-ventilated-in-intensive-care-units-in-australia-and-new-zealand-a-cross-sectional-survey
#5
Charissa S L Tan, Meg Harrold, Kylie Hill
BACKGROUND: Suctioning is an integral component of care for patients who are intubated and ventilated in an intensive care unit (ICU). There appears to be no published data of physiotherapy suctioning practices in Australia or New Zealand. OBJECTIVE: To describe suctioning practices and the factors which have shaped these practices, of experienced physiotherapists working with adults who are intubated and ventilated in an ICU across Australia and New Zealand. Areas of investigation focused on: (i) suctioning approach (i...
February 6, 2017: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/28081216/real-time-monitoring-of-placental-oxygenation-during-maternal-hypoxia-and-hyperoxygenation-using-photoacoustic-imaging
#6
Chloé J Arthuis, Anthony Novell, Florian Raes, Jean-Michel Escoffre, Stéphanie Lerondel, Alain Le Pape, Ayache Bouakaz, Franck Perrotin
PURPOSE: This preclinical study aimed to evaluate placental oxygenation in pregnant rats by real-time photoacoustic (PA) imaging on different days of gestation and to specify variations in placental oxygen saturation under conditions of maternal hypoxia and hyperoxygenation. MATERIAL AND METHODS: Placentas of fifteen Sprague-Dawley rats were examined on days 14, 17, and 20 of pregnancy with a PA imaging system coupled to high-resolution ultrasound imaging. Pregnant rats were successively exposed to hyperoxygenated and hypoxic conditions by changing the oxygen concentration in inhaled gas...
2017: PloS One
https://www.readbyqxmd.com/read/28003557/comparing-the-effects-of-two-different-levels-of-hyperoxygenation-on-gas-exchange-during-open-endotracheal-suctioning-a-randomized-crossover-study
#7
Jacqueline Rodrigues de Freitas Vianna, Valéria Amorim Pires Di Lorenzo, Miléa Mara Lourenço da Silva Simões, Maurício Jamami
BACKGROUND: Endotracheal suctioning is required for mechanically ventilated patients to maintain a patent airway. Studies show that open endotracheal suctioning affects respiratory mechanics and gas exchange. The aim of this study was to compare the effectiveness of hyperoxygenation with FIO2 + 0.20 above baseline and hyperoxygenation with FIO2 1.0 in preventing hypoxemia, and to determine the impact of open endotracheal suctioning on the pulmonary ventilation of critical subjects receiving mechanical ventilatory support...
January 2017: Respiratory Care
https://www.readbyqxmd.com/read/27982102/sustained-maternal-hyperoxygenation-improves-aortic-arch-dimensions-in-fetuses-with-coarctation
#8
Shi Zeng, Jiawei Zhou, Qinghai Peng, Wen Deng, Ming Zhang, Yili Zhao, Tao Wang, Qichang Zhou
The aim was to investigate the impact of maternal hyperoxygenation (HO) on cardiac dimensions in fetuses with isolated Coarctation (CoA). Fetal echocardiography was performed serially in 48 fetuses with CoA and gestation age matched normal fetues. The Z-scores for the mitral valve (MV), tricuspid valve (TV), aortic valve (AV), ascending aorta (AAo), isthmus, pulmonary valve (PV), main pulmonary artery (MPA), and descending aorta (DAo) were measured and compared among normal fetuses, CoA fetuses with oxygen and CoA fetuses with air...
December 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27867481/temporal-variation-in-the-response-of-tumors-to-hyperoxia-with-breathing-carbogen-and-oxygen
#9
Hua-Gang Hou, Nadeem Khan, Gai-Xin Du, Sassan Hodge, Harold M Swartz
The effect of hyperoxygenation with carbogen (95% O2 + 5% CO2) and 100% oxygen inhalation on partial pressure of oxygen (pO2) of radiation-induced fibrosarcoma (RIF-1) tumor was investigated. RIF-1 tumors were innoculated in C3H mice, and aggregates of oximetry probe, lithium phthalocyanine (LiPc), was implanted in each tumor. A baseline tumor pO2 was measured by electron paramagnetic resonance (EPR) oximetry for 20 minutes in anesthetized mice breathing 30% O2 and then the gas was switched to carbogen or 100 % oxygen for 60 minutes...
July 2016: Medical Gas Research
https://www.readbyqxmd.com/read/27832407/central-venous-to-arterial-carbon-dioxide-difference-and-the-effect-of-venous-hyperoxia-a-limiting-factor-or-an-additional-marker-of-severity-in-shock
#10
P Saludes, L Proença, G Gruartmoner, L Enseñat, A Pérez-Madrigal, C Espinal, J Mesquida
Central venous-to-arterial carbon dioxide difference (PcvaCO2) has demonstrated its prognostic value in critically ill patients suffering from shock, and current expert recommendations advocate for further resuscitation interventions when PcvaCO2 is elevated. PcvaCO2 combination with arterial-venous oxygen content difference (PcvaCO2/CavO2) seems to enhance its performance when assessing anaerobic metabolism. However, the fact that PCO2 values might be altered by changes in blood O2 content (the Haldane effect), has been presented as a limitation of PCO2-derived variables...
November 10, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27593402/re-pilot-study-of-chronic-maternal-hyperoxygenation-and-effect-on-aortic-and-mitral-valve-annular-dimensions-in-fetuses-with-left-heart-hypoplasia-d-a-lara-s-a-morris-s-a-maskatia-m-challman-m-nguyen-d-k-feagin-l-schoppe-j-zhang-a-bhatt-s-k-sexson-tejtel-k
#11
COMMENT
https://www.readbyqxmd.com/read/27566222/practice-variation-in-the-management-of-intrapartum-fetal-distress-in-the-netherlands-and-the-western-world
#12
Lauren M Bullens, Suzanne Moors, Pieter J van Runnard Heimel, M Beatrijs van der Hout-van der Jagt, S Guid Oei
OBJECTIVE: Solid evidence on the effect of intrauterine resuscitation on neonatal outcome is limited, and superiority of one intervention over the others is not clear. We therefore surveyed the clinical practice variation in fetal monitoring and the management of fetal distress during labor, in Dutch labor wards. In addition, we have compared recommendations from international guidelines. STUDY DESIGN: We conducted a survey among all 86 Dutch hospitals, using a questionnaire on fetal monitoring and management of fetal distress...
October 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27486662/focal-and-generalized-patterns-of-cerebral-cortical-veins-due-to-non-convulsive-status-epilepticus-or-prolonged-seizure-episode-after-convulsive-status-epilepticus-a-mri-study-using-susceptibility-weighted-imaging
#13
Rajeev Kumar Verma, Eugenio Abela, Kaspar Schindler, Heinz Krestel, Elisabeth Springer, Adrian Huber, Christian Weisstanner, Martinus Hauf, Jan Gralla, Roland Wiest
OBJECTIVE: The aim of this study was to investigate variant patterns of cortical venous oxygenation during status epilepticus (SE) using susceptibility-weighted imaging (SWI). METHODS: We analyzed magnetic resonance imaging (MRI) scans of 26 patients with clinically witnessed prolonged seizures and/or EEG-confirmed SE. All MRI exams encompassed SWI, dynamic susceptibility contrast perfusion MRI (MRI-DSC) and diffusion-weighted imaging (DWI). We aimed to identify distinct patterns of SWI signal alterations that revealed regional or global increases of cerebral blood flow (CBF) and DWI restrictions...
2016: PloS One
https://www.readbyqxmd.com/read/27452936/effect-of-high-perioperative-oxygen-fraction-on-surgical-site-infection-following-surgery-for-acute-sigmoid-diverticulitis-a-prospective-randomized-double-blind-controlled-monocentric-trial
#14
RANDOMIZED CONTROLLED TRIAL
Mario Schietroma, Beatrice Pessia, Sara Colozzi, Francesco Carlei, Ina Shehaj, Gianfranco Amicucci
UNLABELLED: Propose: The clinical role of hyperoxiato prevent postoperative surgical site infection (SSI) remains uncertain since randomized controlled trials on this topic have reported different results. One of the principal reasons for such mixed results can be that previous trials have entered a heterogeneous population of patients and set of procedures. The aim of our study was to assess the influence of hyperoxygenation on SSI usingan homogeneous study population. METHODS: We studied, in a prospective randomized study, extended on a time interval January 2009 to May 2015, 85 patients who underwent open intraperitoneal anastomosis for acute sigmoid diverticulitis...
May 2016: Chirurgia
https://www.readbyqxmd.com/read/26802381/hypercapnic-respiratory-acidosis-during-an-in-flight-oxygen-assessment
#15
Kristofer J Spurling, Ian K Moonsie, Joseph L Perks
BACKGROUND: Patients with respiratory disease are at risk of excessive hypoxemia in the hypobaric commercial aircraft cabin environment, and the consensus is that this is easily corrected with supplementary oxygen. However, despite the risks of hypercapnia with increasing inspired oxygen in some patients being well established, this issue is not currently addressed in medical guidelines for air travel. CASE REPORT: A 76-yr-old woman with chronic type 2 respiratory failure underwent hypoxic challenge testing (HCT) to assess in-flight oxygen requirements...
February 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/26701792/mri-reveals-hemodynamic-changes-with-acute-maternal-hyperoxygenation-in-human-fetuses-with-and-without-congenital-heart-disease
#16
Prashob Porayette, Sujana Madathil, Liqun Sun, Edgar Jaeggi, Lars Grosse-Wortmann, Shi-Joon Yoo, Edward Hickey, Steven P Miller, Christopher K Macgowan, Mike Seed
OBJECTIVE: We investigated the physiologic impact of acute maternal hyperoxygenation (MH) in human fetuses with and without congenital heart disease (CHD) using fetal cardiac magnetic resonance (CMR) in order to explore the potential therapeutic benefits of chronic MH. METHODS: We examined 17 normal and 20 late gestation human fetuses with CHD on a 1.5 T CMR system. Flows were measured in major fetal vessels using phase contrast MRI. The T2 of umbilical venous blood was measured using T2 mapping...
March 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/26700848/pilot-study-of-chronic-maternal-hyperoxygenation-and-effect-on-aortic-and-mitral-valve-annular-dimensions-in-fetuses-with-left-heart-hypoplasia
#17
D A Lara, S A Morris, S A Maskatia, M Challman, M Nguyen, D K Feagin, L Schoppe, J Zhang, A Bhatt, S K Sexson-Tejtel, K N Lopez, E J Lawrence, S Andreas, Y Wang, M A Belfort, R Ruano, N A Ayres, C A Altman, K M Aagaard, J Becker
OBJECTIVE: Acute maternal hyperoxygenation (AMH) results in increased fetal left heart blood flow. Our aim was to perform a pilot study to determine the safety, feasibility and direction and magnitude of effect of chronic maternal hyperoxygenation (CMH) on mitral and aortic valve annular dimensions in fetuses with left heart hypoplasia (LHH) after CMH. METHODS: Gravidae with fetal LHH were eligible for inclusion in a prospective evaluation of CMH. LHH was defined as: sum of aortic and mitral valve annuli Z-scores < -4...
September 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/26554853/supplemental-peri-operative-oxygen-and-incision-site-infection-after-surgery-for-perforated-peptic-ulcer-a-randomized-double-blind-monocentric-trial
#18
RANDOMIZED CONTROLLED TRIAL
Mario Schietroma, Emanuela Marina Cecilia, Giuseppe De Santis, Francesco Carlei, Beatrice Pessia, Gianfranco Amicucci
BACKGROUND: The clinical role of hyperoxia for preventing surgical site infection (SSI) remains uncertain because randomized controlled trials on this topic have reported disparate results. One of the principal reasons for this outcome may be that prior trials have entered heterogeneous populations of patients and a variety of procedures. The aim of our study was to assess the influence of hyperoxygenation on SSI using a homogeneous study population. METHODS: From January 2004 to April 2013, we studied, in a randomized trial, 239 patients, who underwent open surgery for perforated peptic ulcer (PPU)...
February 2016: Surgical Infections
https://www.readbyqxmd.com/read/26465249/endotracheal-suctioning-in-intubated-newborns-an-integrative-literature-review
#19
REVIEW
Roberta Lins Gonçalves, Lucila Midori Tsuzuki, Marcos Giovanni Santos Carvalho
Evidence-based practices search for the best available scientific evidence to support problem solving and decision making. Because of the complexity and amount of information related to health care, the results of methodologically sound scientific papers must be integrated by performing literature reviews. Although endotracheal suctioning is the most frequently performed invasive procedure in intubated newborns in neonatal intensive care units, few Brazilian studies of good methodological quality have examined this practice, and a national consensus or standardization of this technique is lacking...
July 2015: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/26314238/interventions-for-intrauterine-resuscitation-in-suspected-fetal-distress-during-term-labor-a-systematic-review
#20
REVIEW
Lauren M Bullens, Pieter J van Runnard Heimel, M Beatrijs van der Hout-van der Jagt, S Guid Oei
IMPORTANCE: Intrauterine resuscitation techniques during term labor are commonly used in daily clinical practice. Evidence, however, to support the beneficial effect of intrauterine resuscitation techniques on fetal distress during labor is limited and sometimes contradictory. In contrast, some of these interventions may even be harmful. OBJECTIVE: To give insight into the current evidence on intrauterine resuscitation techniques. In addition, we formulate recommendations for current clinical practice and propose directions for further research...
August 2015: Obstetrical & Gynecological Survey
keyword
keyword
21743
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"