keyword
MENU ▼
Read by QxMD icon Read
search

Venous Saturation

keyword
https://www.readbyqxmd.com/read/28337547/retinal-vascular-changes-after-vitrectomy-for-idiopathic-epiretinal-membrane-a-pilot-study-with-dynamic-vessel-analysis
#1
Lorenzo Iuliano, Giovanni Fogliato, Giuseppe Querques, Francesco Bandello, Marco Codenotti
PURPOSE: To investigate, using the Dynamic Vessel Analyzer (DVA), the retinal vascular changes that may occur after vitrectomy for idiopathic epiretinal membrane (ERM). METHODS: Twenty-six eyes of 13 patients affected by unilateral idiopathic ERM were prospectively analyzed. 13 fellow eyes were used as control. The static (central retinal artery and vein equivalents) and dynamic (after flicker light stimulus) DVA analysis was performed at baseline (1 day before surgery) and 6 months after vitrectomy...
March 23, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28333826/complex-relation-between-diet-and-phospholipid-fatty-acids-in-children-with-cystic-fibrosis
#2
Sara Moukarzel, Roger A Dyer, Sheila M Innis
OBJECTIVES: Altered total plasma n-6 and n-3 fatty acids are common in cystic fibrosis (CF). Whether alterations extend to plasma phosphatidylcholine (PC) and phosphatidylethanolamine (PE) and are explained by diet is unclear. The present study was to describe the dietary intake of a large group of children with CF and to determine whether dietary fat composition explains differences in plasma PC and PE fatty acids between children with and without CF. METHODS: Dietary intake was assessed using a food frequency questionnaire...
April 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28329315/seraphin-haemodynamic-sub-study-the-effect-of-the-dual-endothelin-receptor-antagonist-macitentan-on-haemodynamic-parameters-and-nt-probnp-levels-and-their-association-with-disease-progression-in-patients-with-pulmonary-arterial-hypertension
#3
Nazzareno Galiè, Pavel Jansa, Tomás Pulido, Richard N Channick, Marion Delcroix, Hossein-Ardeschir Ghofrani, Franck-Olivier Le Brun, Sanjay Mehta, Loïc Perchenet, Lewis J Rubin, B K S Sastry, Gérald Simonneau, Olivier Sitbon, Rogério Souza, Adam Torbicki
Aims: The effect of macitentan on haemodynamic parameters and NT-proBNP levels was evaluated in pulmonary arterial hypertension (PAH) patients in the SERAPHIN study. Association between these parameters and disease progression, assessed by the primary endpoint (time to first morbidity/mortality event), was explored. Methods and results: Of the 742 randomized patients, 187 with right heart catheterization at baseline and month 6 participated in a haemodynamic sub-study...
February 28, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28325811/a-theoretical-and-practical-approach-to-defining-adequate-oxygenation-in-the-preterm-newborn
#4
REVIEW
Chad C Andersen, Nicolette A Hodyl, Haresh M Kirpalani, Michael J Stark
John Scott Haldane recognized that the administration of supplemental oxygen required titration in the individual. Although he made this observation in adults, it is equally applicable to the preterm newborn. But how, in practice, can the oxygen requirements in the preterm newborn be determined to avoid the consequences of too little and too much oxygen? Unfortunately, the current generation of oxygen saturation trials in preterm newborns guides saturation thresholds rather than individual oxygen requirements...
March 21, 2017: Pediatrics
https://www.readbyqxmd.com/read/28321801/acute-hyperventilation-increases-the-central-venous-to-arterial-pco2-difference-in-stable-septic-shock-patients
#5
Jihad Mallat, Usman Mohammad, Malcolm Lemyze, Mehdi Meddour, Marie Jonard, Florent Pepy, Gaelle Gasan, Stephanie Barrailler, Johanna Temime, Nicolas Vangrunderbeeck, Laurent Tronchon, Didier Thevenin
BACKGROUND: To evaluate the effects of acute hyperventilation on the central venous-to-arterial carbon dioxide tension difference (∆PCO2) in hemodynamically stable septic shock patients. METHODS: Eighteen mechanically ventilated septic shock patients were prospectively included in the study. We measured cardiac index (CI), ∆PCO2, oxygen consumption (VO2), central venous oxygen saturation (ScvO2), and blood gas parameters, before and 30 min after an increase in alveolar ventilation (increased respiratory rate by 10 breaths/min)...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28315014/association-of-native-t1-times-with-biventricular-function-and-hemodynamics-in-precapillary-pulmonary-hypertension
#6
Yin Yin Chen, Hong Yun, Hang Jin, De Hong Kong, Yu Liang Long, Cai Xia Fu, Shan Yang, Meng Su Zeng
In precapillary pulmonary hypertension (PH) patients, we sought to (1) investigate the relationship between ventricular insertion point (VIP) T1 times, hemodynamic parameters, and biventricular function, and (2) determine the predictors of anterior and inferior VIP T1 time. Twenty-two patients with precapillary PH underwent 1.5-T cardiac MR, right heart catheterization (RHC), and echocardiography. A group of 10 healthy age- and sex-matched volunteers served as controls. Biventricular function, morphology and mass were obtained from short-axis cine images...
March 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28306627/novel-microspheres-reduce-the-formation-of-deep-venous-thrombosis-and-repair-the-vascular-wall-in-a-rat-model
#7
Bingyang Dai, Lan Li, Qiangqiang Li, Xiaoxiao Song, Dongyang Chen, Jin Dai, Yao Yao, Wenjin Yan, Huajian Teng, Fang Yang, Zhihong Xu, Qing Jiang
L-Arginine (L-arg), widely known as a substrate for endogenous nitric oxide synthesis, can improve endothelial function associated with the vasculature, inhibit platelet aggregation, and alter the activity of vascular smooth muscle cells. P-selectin is a membrane component of the platelet alpha-granule and the endothelial cell-specific Wiebel-Palade body that plays a central role in mediating interactions between platelets and both leukocytes and the endothelium. The experiment was designed to evaluate the effect of novel microspheres with L-arg targeting P-selectin on the formation of deep vein thrombosis and repair of vascular wall in a rat model...
March 16, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28285866/obstructed-infradiaphragmatic-total-anomalous-pulmonary-venous-return-in-a-13-day-old-infant-presenting-acutely-to-the-emergency-department-a-case-report
#8
Elizabeth A Siacunco, Garrett S Pacheco, Dale P Woolridge
BACKGROUND: Total anomalous pulmonary venous return (TAPVR) is an uncommon congenital heart defect. Obstructed forms are more severe, and typically present earlier in life, usually in the immediate newborn period, with symptoms of severe cyanosis and respiratory failure. CASE REPORT: A 13-day-old boy presented to the emergency department (ED) with respiratory extremis. He appeared cyanotic and limp, and was found to have significant hypoxia with oxygen saturation of 40%...
March 9, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28283327/pharmacokinetics-of-perfluorobutane-after-intra-venous-bolus-injection-of-sonazoid-in-healthy-chinese-volunteers
#9
Pengfei Li, Susan Hoppmann, Ping Du, Huiling Li, Paul M Evans, Siver A Moestue, Weiyue Yu, Fang Dong, Hongchuan Liu, Lihong Liu
Sonazoid is an ultrasound contrast agent based on microbubbles (MB) containing perfluorobutane (PFB) gas. Sonazoid is approved in Japan, Korea and Norway for contrast-enhanced ultrasonography of focal liver lesions and focal breast lesions (Japan only). The objective of this study was to determine the pharmacokinetics (PKs) and safety of Sonazoid in Chinese healthy volunteers (HVs) and to evaluate the potential for ethnic differences in PKs between Chinese and Caucasian HVs. Sonazoid was administered as an intra-venous bolus injection at the clinical dose of 0...
March 7, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28274833/investigating-the-spatiotemporal-characteristics-of-the-deoxyhemoglobin-related-and-deoxyhemoglobin-unrelated-functional-hemodynamic-response-across-cortical-layers-in-awake-marmosets
#10
Cecil Chern-Chyi Yen, Daniel Papoti, Afonso C Silva
Blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) has become a major tool to map neural activity. However, the spatiotemporal characteristics of the BOLD functional hemodynamic response across the cortical layers remain poorly understood. While human fMRI studies suffer from low spatiotemporal resolution, the use of anesthesia in animal models introduces confounding factors. Additionally, inflow contributions to the fMRI signal become non-negligible when short repetition times (TRs) are used...
March 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28261878/hemodynamic-and-perioperative-management-in-two-different-preclinical-pig-to-baboon-cardiac-xenotransplantation-models
#11
Tanja Mayr, Andreas Bauer, Bruno Reichart, Sonja Guethoff, Uwe Schoenmann, Matthias Längin, Alessandro Panelli, Alexander Kind, Paolo Brenner, Jan-Michael Abicht
BACKGROUND: The perioperative phase of preclinical cardiac xenotransplantations significantly affects the experimental outcome. Moderate or even severe hemodynamic and respiratory impairment occurs frequently in baboons after receiving a cardiac transplant. The perioperative management of such postoperative instability is very demanding, especially in the experimental setting. We compared perioperative changes of hemodynamic and laboratory findings during orthotopic and heterotopic thoracic cardiac xenotransplantations and describe our monitoring, treatment and intensive care...
March 5, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28261286/fenestration-closure-with-amplatzer-duct-occluder-ii-in-patients-after-total-cavo-pulmonary-connection
#12
Sebastian Góreczny, Paweł Dryżek, Gareth J Morgan, Anna Mazurek-Kula, Jacek J Moll, Jadwiga A Moll, Shakeel Qureshi, Tomasz Moszura
INTRODUCTION: Creation of a fenestration during completion of a total cavopulmonary connection (TCPC) has been associated with a reduction in early mortality and morbidity. However, the long-term benefits are negated by an associated limitation in exercise tolerance and the potential risks of thrombo-embolic complications. We sought to describe the safety and efficacy of an Amplatzer Duct Occluder II (ADO II) for transcatheter fenestration closure following TCPC. MATERIAL AND METHODS: Between January 2000 and July 2014, 102 patients underwent percutaneous closure of extra-cardiac TCPC fenestrations with a range of devices...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28251087/retinal-vessel-oxygen-saturation-in-healthy-subjects-and-early-branch-retinal-vein-occlusion
#13
Jing-Yan Yang, Bing You, Qian Wang, Szy Yann Chan, Jost B Jonas, Wen-Bin Wei
AIM: To measure the retinal oxygen saturation in healthy subjects and early branch retinal vein occlusion (BRVO) in Chinese population. METHODS: The retinal vessel oxygen saturation of the healthy subjects and BRVO patients were measured by a noninvasive retinal oximeter (Oxymap ehf., Reykjavik, Iceland). RESULTS: The study included 22 patients with unilateral BRVO (mean age: 55.1±8.8y) in the study group and 91 healthy participants (mean age: 37...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28237685/evaluation-of-a-new-handheld-point-of-care-blood-gas-analyser-using-100-equine-blood-samples
#14
David Bardell, Eleanor West, J Mark Senior
OBJECTIVES: To determine whether the Enterprise point-of-care blood analysis system (EPOC) produces results in agreement with two other blood gas analysers in regular clinical use (i-STAT and Radiometer ABL77) and to investigate the precision of the new machine when used with equine whole blood. STUDY DESIGN: Prospective, randomized, non-blinded, comparative laboratory analyser study. ANIMALS: Horses admitted to a university teaching hospital requiring arterial or venous blood gas analysis as part of their routine clinical management...
February 22, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28231032/effects-of-live-trapping-and-isoflurane-anesthesia-on-free-ranging-american-martens-martes-americana
#15
Maria C Spriggs, Lisa I Muller, Paul Keenlance, Robert L Sanders, Jill C Witt, Debra L Miller
Seventy-two free-ranging American martens ( Martes americana ) in Michigan were immobilized using isoflurane from 2011 to 2015. In total, 129 anesthetic procedures were performed with no mortalities. Hypothermia and hyperthermia were the most common anesthetic complications, and the mean rectal temperatures were significantly higher during summer than in winter. Dental abnormalities were common; the majority of abnormal findings were broken or discolored teeth attributed to previous dental trauma and were not trap-induced...
February 23, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28230704/muscle-metaboreflex-control-of-sympathetic-activity-in-obstructive-sleep-apnea
#16
Linda M Ueno-Pardi, Renan S Guerra, Thiago T Goya, Rosyvaldo F Silva, Elisangela M Gara, Marta F Lima, Thais S Nobre, Maria J N N Alves, Ivani C Trombetta, Geraldo Lorenzi-Filho
PURPOSE: Previous studies report abnormal muscle metaboreflex control of muscle sympathetic nerve activity (MSNA) in obesity, hypertension, and heart failure. We hypothesized that obstructive sleep apnea (OSA) is associated with augmented metaboreflex control of MSNA. METHODS: Thirty-one sedentary individuals with no comorbidities (age = 52±1 y, body mass index = 28±1 kg/m) without (control, n = 14) and with OSA (n = 17) defined by polysomnography, underwent echocardiography...
February 22, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28218209/clinical-study-of-acute-vasoreactivity-testing-in-patients-with-chronic-thromboembolic-pulmonary-hypertension
#17
Qi-Xia Xu, Yuan-Hua Yang, Jie Geng, Zhen-Guo Zhai, Juan-Ni Gong, Ji-Feng Li, Xiao Tang, Chen Wang
BACKGROUND: The clinical significance of acute vasoreactivity testing (AVT) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) remains unclear. We analyzed changes in hemodynamics and oxygenation dynamics indices after AVT in patients with CTEPH using patients with pulmonary arterial hypertension (PAH) as controls. METHODS: We analyzed retrospectively the results of AVT in 80 patients with PAH and 175 patients with CTEPH registered in the research database of Beijing Chao-Yang Hospital between October 2005 and August 2014...
February 20, 2017: Chinese Medical 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
#18
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/28214493/the-value-of-near-infrared-spectroscopy-for-the-assessment-of-calf-muscle-function-in-venous-patients
#19
Spyros N Vasdekis, Ioannis Tzemailas, Constantine N Antonopoulos, Sotiria Mastoraki, George K Mantas, Andreas Lazaris
OBJECTIVE: Near-infrared spectroscopy (NIRS) is a noninvasive technique with the potential to determine the degree of tissue oxygenation. The aim of the current study was to investigate the use of NIRS as a reliable method of detecting calf muscle pump dysfunction in groups of patients with venous disease. METHODS: Patients with superficial venous insufficiency (SVI) or history of deep venous thrombosis (DVT) were classified according to the comprehensive classification system for chronic venous disorders (clinical class, etiology, anatomy, and pathophysiology) and compared with controls (GROUP variable)...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28208845/role-of-altered-venous-blood-lactate-and-hba1c-in-women-with-gestational-diabetes-mellitus
#20
C S Nagalakshmi, N U Santhosh, N Krishnamurthy, Chethana Chethan, M K Shilpashree
INTRODUCTION: Being a mirror image of metabolic syndrome, Gestational Diabetes Mellitus (GDM) is associated with significant maternal and fetal morbidity. Increased blood lactate concentration and alterations of substrate utilization are partly involved in development of insulin resistance in GDM. Fetuses born to such mothers have shown low umbilical vein oxygen saturation and low oxygen content and increased lactate concentrations. These changes may certainly reflect enhanced fetal metabolism as a result of hyperglycaemia and hyperinsulinemia and therefore, these fetuses deserve intense surveillance at term and during delivery...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
keyword
keyword
56563
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"