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https://www.readbyqxmd.com/read/29216947/-effects-of-active-abdominal-compression-decompression-cpr-on-oxygen-metabolism-and-prognosis-in-patients-with-cardiac-arrest
#1
Xin Sha, Sisen Zhang, Hongwei Wang, Yingxin Cen, Wei Song, Jing Li, Lixiang Wang
OBJECTIVE: To analyze the effect of active abdominal compression-decompression cardiopulmonary resuscitation (AACD-CPR) and standard cardiopulmonary resuscitation (STD-CPR) on oxygen metabolism and prognosis of patient with cardiac arrest (CA), and to evaluate the treatment effect of AACD-CPR. METHODS: Patients with CA, CA time less than 30 minutes, and without STD-CPR and AACD-CPR contraindications admitted to the Zhengzhou People's Hospital from October 1st 2015 to May 31st 2017 were enrolled...
December 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29194727/diminished-cerebral-oxygen-extraction-and-metabolic-rate-in-sickle-cell-disease-using-t2-relaxation-under-spin-tagging-mri
#2
Adam M Bush, Thomas D Coates, John C Wood
PURPOSE: T2 MRI oximetry can noninvasively determine oxygen saturation (Y) but requires empirical MR calibration models to convert the measured blood transverse relaxation (T2b ) into Y. The accuracy of existing T2b models in the presence of blood disorders such as sickle cell disease (SCD) remains unknown. METHODS: A Carr Purcell Meiboom Gill T2 preparation sequence was used to make 83 whole blood measurements from 11 subjects with SCD to derive an ex vivo sickle hemoglobin (HbS) T2b model...
December 1, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29193717/is-venous-blood-gas-performed-in-the-emergency-department-predictive-of-outcome-during-acute-on-chronic-hypercarbic-respiratory-failure
#3
Lisa Domaradzki, Sahithi Gosala, Khaled Iskandarani, Andry Van de Louw
BACKGROUND: during acute on chronic hypercarbic respiratory failure (AHRF), arterial pH is associated with non-invasive ventilation (NIV) failure and mortality. Venous blood gas (VBG) has been proposed as a substitute for arterial blood gas, based on a good agreement between venous and arterial values. We assessed the predictive value of admission VBG on intubation rate, NIV failure and mortality during AHRF. METHODS: retrospective chart review of inpatients admitted between 2009 and 2015 with AHRF who had VBG performed on admission...
November 28, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29184987/ventilation-during-extracorporeal-support-why-and-how
#4
REVIEW
A Pesenti, E Carlesso, T Langer, T Mauri
The main target of extracorporeal support is to achieve viable gas exchange, while minimizing the risk of ventilator-induced lung injury, achieved through a decreased mechanical ventilation load on the natural lung. However, during veno-venous extracorporeal membrane oxygenation (ECMO), mechanical ventilation is still necessary in order to prevent lung collapse and/or if extracorporeal blood flow is not sufficient to guarantee adequate gas exchange. In this review, we will summarize the physiology of extracorporeal support and the rationale for continuing mechanical ventilation in this context...
November 28, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/29183573/age-dependent-physiological-dynamics-in-acid-base-balance-electrolytes-and-blood-metabolites-in-growing-goats
#5
S Redlberger, S Fischer, H Köhler, R Diller, P Reinhold
There is a paucity of published data reporting acid-base equilibrium in goats, and no information is available on how the acid-base complexity changes when suckling goat kids become ruminants. The aims of this study were to evaluate young healthy goats for age-related changes in serum proteins, metabolites, and electrolytes; differences in results when the Henderson-Hasselbalch equation or strong ion approaches were used were also assessed. To assess biological variability and reproducibility, two consecutive long-term studies, each lasting from the 6th to 56th week of life (wl), were performed in 15 (Study 1) and 10 (Study 2) animals...
November 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29177410/relationship-of-acid-base-status-with-arterial-stiffness-in-community-living-elders-the-health-abc-study
#6
Wei Chen, Anne B Newman, Linda F Fried, Dena E Rifkin, Michael G Shlipak, Mark J Sarnak, Ronit Katz, Magdalena Madero, Kalani L Raphael, David A Bushinsky, Joachim H Ix
Background: Animal studies suggest that acidosis protects against arterial calcification, which contributes to arterial stiffness. The goal of this study was to investigate the associations of serum bicarbonate and pH with arterial stiffness in community-living older adults. Methods: We performed cross-sectional analyses among 1698 well-functioning participants 70-79 years of age. Bicarbonate and pH were measured by arterialized venous blood gas at the point of care...
November 21, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29165910/retrospective-evaluation-of-the-prognostic-utility-of-plasma-lactate-concentration-base-deficit-ph-and-anion-gap-in-canine-and-feline-emergency-patients
#7
Casey J Kohen, Kate Hopper, Philip H Kass, Steven E Epstein
OBJECTIVE: To determine the association of plasma lactate concentration, pH, base deficit (BD), and anion gap (AG) in dogs and cats on presentation to an emergency room with outcome, and to compare the prognostic significance of hyperlactatemia with a concurrent metabolic acidosis with that of hyperlactatemia and a normal metabolic acid-base balance. DESIGN: Retrospective study. SETTING: University teaching hospital. ANIMALS: Five hundred sixty-six dogs and 185 cats that had venous blood gas analysis performed...
November 22, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/29151335/comparison-of-tidal-volume-and-deep-breath-preoxygenation-techniquesundergoing-coronary-artery-bypass-graft-surgery-effects-of-hemodynamicresponse-and-arterial-oxygenation
#8
Zafer Taş, Tülay Hoşten, Alparslan Kuş, Sevim Cesur, Neşe Türkyılmaz, Ahmet Arıkan, Zeynep Mine Solak
Background/aim: Different techniques exist for the preoxygenation of patients that will be operated on under general anesthesia. Preoxygenation with the deep breath (DB) method may affect cardiovascular stability, which is crucial for coronary artery bypass graft (CABG) patients. In this study, we aimed to compare the effects of the 3 min TVB preoxygenation technique and 1 min 8DBs technique on hemodynamic response and arterial oxygenation in patients with normal ejection fraction that were scheduled for elective CABG surgery...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29144430/a-correlation-study-of-dha-intake-estimated-by-a-ffq-and-concentrations-in-plasma-and-erythrocytes-in-mid-and-late-pregnancy
#9
Yu-Bo Zhou, Hong-Tian Li, Leonardo Trasande, Lin-Lin Wang, Ya-Li Zhang, Ke-Yi Si, Man-Xi Bai, Jian-Meng Liu
Adequate docosahexaenoic acid (DHA) is essential for the optimal growth and development of the fetus. Maternal DHA content fluctuates during pregnancy. The correlation of DHA content with dietary intake might be varied over the course of pregnancy. We aimed to compare the dietary DHA intake, estimated by a DHA-specific semiquantitative food frequency questionnaire (FFQ) against its blood content, among mid- and late-term pregnant women. A total of 804 Chinese pregnant women completed the tailored FFQ and provided fasting venous blood samples...
November 16, 2017: Nutrients
https://www.readbyqxmd.com/read/29141525/hyperacute-hemodynamic-effects-of-bipap-noninvasive-ventilation-in-patients-with-acute-heart-failure-and-left-ventricular-systolic-dysfunction-in-emergency-department
#10
Cinzia Moret Iurilli, Natale Daniele Brunetti, Paola Rita Di Corato, Giuseppe Salvemini, Matteo Di Biase, Marco Matteo Ciccone, Vito Procacci
BACKGROUND: Acute heart failure (AHF) is one of the leading causes of admission to emergency department (ED); severe hypoxemic AHF may be treated with noninvasive ventilation (NIV). Despite the demonstrated clinical efficacy of NIV in relieving symptoms of AHF, less is known about the hyperacute effects of bilevel positive airway pressure (BiPAP) ventilation on hemodynamics of patients admitted to ED for AHF. We therefore aimed to assess the effect of BiPAP ventilation on principal hemodynamic, respiratory, pulse oximetry, and microcirculation indexes in patients admitted to ED for AHF, needing NIV...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/29137091/the-effects-of-hypervolemic-infusion-on-microcirculation-perfusion-of-patients-during-laparoscopic-colorectal-surgery
#11
RANDOMIZED CONTROLLED TRIAL
Yunxin Deng, Qianlin Zhu, Buwei Yu, Minhua Zheng, Jue Jin
The aim of this study is to assess the effects of hypervolemic infusion with different solutions on microcirculation perfusion during laparoscopic colorectal surgery.Thirty-six patients were randomly divided into Ringer lactate solution [RL] group, succinylated gelatin injection [Gel] group, and hypertonic saline hydroxyethyl starch 40 injection [HS] group. Hypervolemic infusion was performed during the induction period of general anesthesia. Arterial blood-gas parameters, noninvasive hemodynamics, gastric tonometry values, and central venous pressure (CVP) were compared at baseline (T1); the end of hypervolemic infusion (T2); 5 min (T3), 15 min (T4), 30 min (T5), and 60 min (T6) during pneumoperitoneum; 5 min (T7), 15 min (T8), and 25 min (T9) after pneumoperitoneum...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29121971/cmr-based-blood-oximetry-via-multi-parametric-estimation-using-multiple-t2-measurements
#12
Juliet Varghese, Lee C Potter, Richard LaFountain, Xueliang Pan, Subha V Raman, Rizwan Ahmad, Orlando P Simonetti
BACKGROUND: Measurement of blood oxygen saturation (O2 saturation) is of great importance for evaluation of patients with many cardiovascular diseases, but currently there are no established non-invasive methods to measure blood O2 saturation in the heart. While T2-based CMR oximetry methods have been previously described, these approaches rely on technique-specific calibration factors that may not generalize across patient populations and are impractical to obtain in individual patients...
November 9, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29111277/resolution-of-ketoacidosis-in-children-with-new-onset-diabetes-evaluation-of-various-definitions
#13
Julia E von Oettingen, Erinn T Rhodes, Joseph I Wolfsdorf
AIMS: Data are sparse concerning use of serum electrolyte parameters as compared to venous blood gas (VBG) measurements to monitor acid-base status during treatment of diabetic ketoacidosis (DKA). We explored the utility of various parameters to define DKA resolution by investigating the relationship of venous pH (vpH), anion gap (AG), serum bicarbonate (HCO3), and glucose concentration during management of DKA in children with new onset diabetes mellitus (NODM). METHODS: We included all patients with NODM presenting with DKA to Boston Children's Hospital from 10/1/07-7/1/13...
October 27, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29109872/severe-decompression-illness-case-report-prehospital-recognition-and-regional-transport-considerations
#14
Julie Estrada, David Meurer, Kevin De Boer, Karl Huesgen
A 46-year-old male presented to our tertiary care emergency department (ED) with shortness of breath and chest pain following an uneventful four-hour SCUBA dive at 100 feet. His prehospital emergency medical services (EMS) assessment revealed transient hypotension and hypoxia. He later developed progressive skin mottling. Serology was significant for acute kidney injury, transaminitis, hemoconcentration, and hypoxia on an arterial blood gas. Computed tomography (CT) angiography demonstrated intravascular gas throughout the mesenteric and pulmonary arteries as well as the portal venous system...
2017: Case Reports in Emergency Medicine
https://www.readbyqxmd.com/read/29099261/effect-of-blood-collection-by-the-push-pull-technique-from-an-indwelling-catheter-versus-direct-venipuncture-on-venous-blood-gas-values-before-and-after-administration-of-alfaxalone-or-propofol-in-dogs
#15
Ciara A Barr, Giacomo Gianotti, Carly E Graffeo, Kenneth J Drobatz, Deborah C Silverstein
OBJECTIVE To compare the effect of blood collection by a push-pull technique from an indwelling IV catheter versus direct venipuncture on venous blood gas values before and after administration of alfaxalone or propofol to dogs. DESIGN Prospective randomized clinical study. ANIMALS 30 healthy client-owned dogs that weighed ≥ 10 kg (22 lb) and were anesthetized for elective surgical procedures. PROCEDURES All dogs were premedicated with methadone (0.5 mg/kg [0.2 mg/lb], IM), and 20 to 30 minutes later, anesthesia was induced with either alfaxalone (1 to 3 mg/kg [0...
November 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29090614/co2-clearance-by-membrane-lungs
#16
Liqun Sun, Andreas Kaesler, Piyumindri Fernando, Alex J Thompson, John M Toomasian, Robert H Bartlett
INTRODUCTION: Commercial membrane lungs are designed to transfer a specific amount of oxygen per unit of venous blood flow. Membrane lungs are much more efficient at removing CO2 than adding oxygen, but the range of CO2 transfer is rarely reported. METHODS: Commercial membrane lungs were studied with the goal of evaluating CO2 removal capacity. CO2 removal was measured in 4 commercial membrane lungs under standardized conditions. CONCLUSION: CO2 clearance can be greater than 4 times that of oxygen at a given blood flow when the gas to blood flow ratio is elevated to 4:1 or 8:1...
October 1, 2017: Perfusion
https://www.readbyqxmd.com/read/29084012/effects-of-changes-in-arterial-carbon-dioxide-and-oxygen-partial-pressures-on-cerebral-oximeter-performance
#17
Andrew Schober, John R Feiner, Philip E Bickler, Mark D Rollins
BACKGROUND: Cerebral oximetry (cerebral oxygen saturation; ScO2) is used to noninvasively monitor cerebral oxygenation. ScO2 readings are based on the fraction of reduced and oxidized hemoglobin as an indirect estimate of brain tissue oxygenation and assume a static ratio of arterial to venous intracranial blood. Conditions that alter cerebral blood flow, such as acute changes in PaCO2, may decrease accuracy. We assessed the performance of two commercial cerebral oximeters across a range of oxygen concentrations during normocapnia and hypocapnia...
October 30, 2017: Anesthesiology
https://www.readbyqxmd.com/read/29076367/maternal-and-fetal-effects-of-dexmedetomidine-infusion-in-pregnant-ewes-anesthetized-with-sevoflurane
#18
Mauricio Loría Lépiz, Rebecca Sayre, Onkar Sawant, James Barr, Medora Pashmakova, Kevin Washburn, Shannon Washburn
OBJECTIVE To characterize the maternal and fetal cardiopulmonary effects of a low-dose infusion of dexmedetomidine without a loading dose in pregnant ewes anesthetized with sevoflurane. ANIMALS 11 pregnant ewes. PROCEDURES Anesthesia was induced with propofol and maintained with sevoflurane. Ewes and fetuses were instrumented with arterial and venous catheters, and thermodilution-pulmonary arterial catheters were placed in the ewes. Baseline measurements were obtained at an end-tidal sevoflurane concentration of 3...
November 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29072164/effects-of-a-lipid-emulsion-containing-fish-oil-on-polyunsaturated-fatty-acid-profiles-growth-and-morbidities-in-extremely-premature-infants-a-randomized-controlled-trial
#19
Svetlana Najm, Chatarina Löfqvist, Gunnel Hellgren, Eva Engström, Pia Lundgren, Anna-Lena Hård, Alexandre Lapillonne, Karin Sävman, Anders K Nilsson, Mats X Andersson, Lois E H Smith, Ann Hellström
BACKGROUND & AIMS: The purpose of the study was to compare the effects of the parenteral emulsion SMOFlipid®, with 15% fish oil, with Clinoleic® on retinopathy of prematurity (ROP) and other morbidities and growth, and to compare their impact on longitudinal serum levels of fatty acids. Retinopathy of prematurity, other morbidity and growth were correlated with each parenteral lipid supplement. METHODS: Ninety infants born at gestational age <28 weeks were randomized to treatment with SMOFlipid® or Clinoleic®...
August 2017: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29049743/additional-veno-venous-gas-exchange-as-a-problem-solving-strategy-for-an-oxygenator-not-transferring-oxygen-in-paediatric-cardiopulmonary-bypass
#20
Wolfgang Boettcher, Nicodème Sinzobahamvya, Frank Dehmel, Andreas Matschke, Andre Iben, Mi-Young Cho, Mathias Redlin, Joachim Photiadis
OBJECTIVES: Oxygenator failure during cardiopulmonary bypass constitutes a life-threatening event, especially when perfusion is conducted under normothermia. An alternative solution to emergency oxygenator changeover is described. METHODS: A supplementary oxygenator is added in the venous line without interrupting perfusion. De-airing is achieved through the cardiotomy reservoir. Oxygen supply is adapted to ensure physiologic partial oxygen pressure. RESULTS: On 5 occasions in the past 4 years, Capiox Baby FX 05 oxygenator (n = 4) and Capiox FX15 (n = 1) failed to exchange blood gases after bypass run ranging from 290 min to 563 min...
November 1, 2017: Interactive Cardiovascular and Thoracic Surgery
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