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Central venous oxygen saturation

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https://www.readbyqxmd.com/read/28625386/hemodynamic-determinants-of-mortality-after-fontan-operation
#1
Hideo Ohuchi, Aya Miyazaki, Jun Negishi, Yosuke Hayama, Michikazu Nakai, Kunihiro Nishimura, Hajime Ichikawa, Isao Shiraishi, Osamu Yamada
BACKGROUND: Elevated central venous pressure (CVP), low cardiac output, and mild hypoxia are common early and late after Fontan operations. However, the association of these characteristics with late mortality is unclear. We aimed to elucidate the hemodynamic determinants of mortality after Fontan operation. METHOD: We evaluated early (group early; 0.5-5years postoperatively, n=387) and late (group late; ≥15years postoperatively, n=161) Fontan hemodynamics that included CVP (mm Hg), cardiac index (CI; L/min per m(2)), systemic ventricular end-diastolic volume index (mL/m(2)), ejection fraction (EF; %), and arterial blood oxygen saturation (%)...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28622280/elevated-central-venous-to-arterial-co2-difference-is-not-associated-with-poor-clinical-outcomes-after-cardiac-surgery-with-cardiopulmonary-bypass-in-children
#2
Takaaki Akamatsu, Yu Inata, Kazuya Tachibana, Takeshi Hatachi, Muneyuki Takeuchi
OBJECTIVE: To investigate whether elevated central venous to arterial CO2 difference is associated with delayed extubation and prolonged ICU stay in children after cardiac surgery with cardiopulmonary bypass. DESIGN: Retrospective review of medical records. SETTING: PICU in a tertiary children's hospital. PATIENTS: Pediatric patients younger than 18 years old who underwent cardiac surgery with cardiopulmonary bypass between January 2014 and December 2014...
June 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28589407/changes-of-cerebral-oxygenation-in-sequential-glenn-and-fontan-procedures-in-the-same-children
#3
Yasunori Yagi, Masataka Yamamoto, Hitoshi Saito, Toshihiro Mori, Yuji Morimoto, Takayoshi Oyasu, Tsuyoshi Tachibana, Yoichi M Ito
Recently, it is common to perform the Fontan procedure after the Glenn procedure as surgical repair for the univentricular heart. How the brain oxygen saturation (rSO2) values change with the cardiac restoration and the process of growth during these procedures in individual children remains unknown. In this study, we retrospectively studied rSO2 data as well as the perioperative clinical records of 30 children who underwent both Glenn and Fontan procedures by the same surgeon in the same institute. The rSO2 was measured at the beginning and end of each procedure with an INVOS 5100C...
June 7, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28571240/monitoring-microcirculatory-blood-flow-during-cardiopulmonary-bypass-in-paediatric-cardiac-surgery-patients-as-a-predictor-for-anaerobic-metabolism
#4
Ramesh Patel, Atul Solanki, Hasmukh Patel, Jignesh Patel, Himani Pandya, Jainam Sharma
INTRODUCTION: Improving tissue oxygenation is one of most important tasks in management of low cardiac output. Central venous oxygen saturation (ScvO2) and lactate are established criteria for monitoring the adequacy of tissue oxygenation. The venous-to-arterial carbon dioxide difference [P(v-a)CO2] is inversely associated with cardiac output. AIM: To study the use of P(v-a)CO2/C(a-v)O2 ratio as a marker of low cardiac output during Cardiopulmonary Bypass (CPB) in paediatric cardiac surgical patients...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28552261/investigating-the-clinical-feasibility-of-an-adapted-early-mobility-readiness-protocol-for-critical-ill-patients-a-non-randomised-experimental-pilot-trial
#5
Elmarie Conradie, Catharina E Fourie, Susan D Hanekom
BACKGROUND: Uncertainty exists whether a therapeutic early mobility position will affect the outcome of a critically ill patient. OBJECTIVES: To evaluate the feasibility of an existing protocol to identify patients who would tolerate this position. RESEARCH METHODOLOGY/DESIGN: A non-randomized experimental pilot trail was performed. Twice weekly, all patients nursed in surgical and respiratory units were screened with the protocol. OUTCOME MEASURES: Haemodynamic parameters, mean arterial pressure and central venous oxygen saturation of included patients were tested in the baseline position followed by the testing position at 0, 3 and 10minutes...
May 25, 2017: Intensive & Critical Care Nursing: the Official Journal of the British Association of Critical Care Nurses
https://www.readbyqxmd.com/read/28514777/direct-measurement-of-tissue-oxygenation-in-neonates-via-resonance-raman-spectroscopy-a-pilot-study
#6
Anjali Iyengar, Andrew Gaillardetz, Hocine Tighiouart, Betsabee Castillo, Padraic Romfh, Jonathan M Davis
BACKGROUND: The ability to monitor tissue oxygenation in neonates remains a challenge due to limited blood supply and the reliance on invasive procedures. Resonance Raman spectroscopy noninvasively measures tissue oxygenation (RRS-StO2). Peripheral tissue oxygenation using this novel technology has not been described in neonates. OBJECTIVES: To examine the relationship between short-term RRS-StO2 measurements and central venous saturation (ScvO2) and pulse oximetry (SpO2) in preterm and term neonates...
May 18, 2017: Neonatology
https://www.readbyqxmd.com/read/28511435/agreement-and-correlation-between-arterial-and-central-venous-blood-gas-following-coronary-artery-bypass-graft-surgery
#7
Masoumeh Esmaeilivand, Alireza Khatony, Gholamreza Moradi, Farid Najafi, Alireza Abdi
INTRODUCTION: Arterial blood sampling, used to assess patients in acute conditions, may result in complications such as thrombosis and embolism. However, it can be replaced by venous blood sampling, but there is a dearth of information on this. AIM: To assess the correlation and agreement between the arterial and central venous blood gases analyses in patients undergoing elective Coronary Artery Bypass Graft (CABG) surgery. MATERIALS AND METHODS: In this cross-sectional study, 100 ICU patients undergoing elective CABG surgery were recruited...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28465331/renal-resistive-index-reflects-fontan-pathophysiology-and-predicts-mortality
#8
Hideo Ohuchi, Jun Negishi, Yohsuke Hayama, Aya Miyazaki, Isao Shiraishi, Hajime Ichikawa
OBJECTIVES: The renal resistive index (RRI) reflects non-renal pathophysiology, such as great artery stiffness, haemodynamics and even end-organ damage in patients with hypertension. This study was conducted to clarify the clinical significance of the RRI in Fontan pathophysiology. METHODS: We measured the RRI in 280 consecutive Fontan patients and 36 healthy controls. RESULTS: The patients exhibited a higher RRI than the controls (0.71±0...
May 2, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28452908/measurement-of-oxygen-consumption-variations-in-critically-ill-burns-patients-are-the-fick-method-and-indirect-calorimetry-interchangeable
#9
Sabri Soussi, Fabrice Vallée, Florian Roquet, Vincent Bevilacqua, Mourad Benyamina, Axelle Ferry, Alexandru Cupaciu, Maïté Chaussard, Christian De Tymowski, David Boccara, Maurice Mimoun, Marc Chaouat, James Anstey, Alexandre Mebazaa, Matthieu Legrand
OBJECTIVES: To evaluate the interchangeability of oxygen consumption variations measured with the Fick equation (ΔVO2Fick) and indirect calorimetry (ΔVO2Haldane) in critically-ill burns patients. METHODS: Prospective observational single-center study conducted in a university hospital. Twenty-two consecutive burns patients with circulatory insufficiency and hyperlactatemia (>2 mmol/l) who required a fluid challenge (FC) were included. All patients had cardiac output (CO) monitoring (transpulmonary thermodilution technique) and were ventilated and sedated...
April 27, 2017: Shock
https://www.readbyqxmd.com/read/28420471/-mixed-venous-arterial-carbon-dioxide-difference-combined-with-passive-leg-raising-in-guiding-volume-management-for-patients-post-off-pump-coronary-artery-bypass-grafting
#10
Likun Huo, Peijun Li, Chang Xie, Chenglei Yan, Jie Li
OBJECTIVE: To investigate whether mixed venous-arterial carbon dioxide difference (Pv-aCO2) combined with passive leg raising (PLR) could better guide volume management for patients post off-pump coronary artery bypass grafting (OPCABG). METHODS: Eighty patients experienced OPCABG, and admitted to Tianjin Chest Hospital from June 1st to October 1st in 2016 were enrolled. They were randomly divided into two groups: observation group given Pv-aCO2 combined with PLR directed therapy and control group given central venous pressure (CVP) directed therapy, 40 cases in each group...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28374103/a-validation-method-for-near-infrared-spectroscopy-based-tissue-oximeters-for-cerebral-and-somatic-tissue-oxygen-saturation-measurements
#11
Paul B Benni, David MacLeod, Keita Ikeda, Hung-Mo Lin
We describe the validation methodology for the NIRS based FORE-SIGHT ELITE(®) (CAS Medical Systems, Inc., Branford, CT, USA) tissue oximeter for cerebral and somatic tissue oxygen saturation (StO2) measurements for adult subjects submitted to the United States Food and Drug Administration (FDA) to obtain clearance for clinical use. This validation methodology evolved from a history of NIRS validations in the literature and FDA recommended use of Deming regression and bootstrapping statistical validation methods...
April 3, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28364680/assessment-of-macro-and-micro-oxygenation-parameters-during-fractional-fluid-infusion-a-pilot-study
#12
Marc-Olivier Fischer, Vincent Bonnet, Emmanuel Lorne, Jean-Yves Lefrant, Olivier Rebet, Benoît Courteille, Charlotte Lemétayer, Jean-Jacques Parienti, Jean-Louis Gérard, Jean-Luc Fellahi, Jean-Luc Hanouz
PURPOSE: The main goal of this study was to assess whether maximal fluid infusion improves both oxygen delivery (DO2) and micro-circulatory parameters during hemodilution. The secondary objective was to assess the ability of baseline micro-circulatory parameters to predict oxygen consumption (VO2) response following fluid infusion. MATERIALS AND METHODS: In a postoperative cardiac ICU, patients received repeated fluid infusion until stroke volume (SV) was maximized...
March 27, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28337547/retinal-vascular-changes-after-vitrectomy-for-idiopathic-epiretinal-membrane-a-pilot-study-with-dynamic-vessel-analysis
#13
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...
July 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28321801/acute-hyperventilation-increases-the-central-venous-to-arterial-pco2-difference-in-stable-septic-shock-patients
#14
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/28216699/comparison-of-volume-controlled-ventilation-and-pressure-controlled-ventilation-in-patients-undergoing-robot-assisted-pelvic-surgeries-an-open-label-trial
#15
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/28202033/use-of-stepwise-lactate-kinetics-oriented-hemodynamic-therapy-could-improve-the-clinical-outcomes-of-patients-with-sepsis-associated-hyperlactatemia
#16
Xiang Zhou, Dawei Liu, Longxiang Su, Bo Yao, Yun Long, Xiaoting Wang, Wenzhao Chai, Na Cui, Hao Wang, Xi Rui
BACKGROUND: Setting lactate kinetics at >30% might improve the clinical outcomes of patients with sepsis-associated hyperlactatemia. The aim of this study was to explore the outcome benefits of stepwise lactate kinetics vs central venous oxygen saturation (ScvO2)-oriented hemodynamic therapy at 6 h as the protocol goal during early resuscitation. METHODS: The relevant parameters and adverse events after different targets in 360 randomly assigned patients with sepsis-associated hyperlactatemia were recorded and compared...
February 16, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28151454/effects-of-blood-transfusion-on-oxygen-extraction-ratio-and-central-venous-saturation-in-children-after-cardiac-surgery
#17
Bana Nasser, Mohmad Tageldein, Abdulrahman AlMesned, Mohammad Kabbani
BACKGROUND: Red blood cell transfusion is common in critically ill children after cardiac surgery. Since the threshold for hemoglobin (Hb) transfusion need is not well defined, the threshold Hb level at which dependent critical oxygen uptake-to-delivery (VO2-DO2) status compensation is uncertain. OBJECTIVES: To assess the effects of blood transfusion on the oxygen extraction ratio (O2ER) and central venous oxygen saturation (ScvO2) to identify a critical O2ER value that could help us determine the critical need for blood transfusion...
January 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28144779/focused-cardiac-ultrasound-in-the-early-resuscitation-of-severe-sepsis-and-septic-shock-a-prospective-pilot-study
#18
Hiroshi Sekiguchi, Yohei Harada, Hector R Villarraga, Sunil V Mankad, Ognjen Gajic
PURPOSE: Point-of-care ultrasonography has been increasingly used in the care of critically ill patients; however, reports on its use during active resuscitation are limited. The aim of this study was to investigate the true impact of focused cardiac ultrasound (FCU) during the management of sepsis with early (6-h) resuscitation. METHODS: A prospective pilot observational study was conducted at an academic medical center from March 2011 through July 2012. Patients undergoing resuscitation for severe sepsis or septic shock were prospectively enrolled at medical and combined medical-surgical intensive care units...
January 31, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28144579/microvascular-response-to-transfusion-in-elective-spine-surgery
#19
J Matthias Walz, Ottokar Stundner, Federico P Girardi, Bruce A Barton, Aimee R Koll-Desrosiers, Stephen O Heard, Stavros G Memtsoudis
AIM: To investigate the microvascular (skeletal muscle tissue oxygenation; SmO2) response to transfusion in patients undergoing elective complex spine surgery. METHODS: After IRB approval and written informed consent, 20 patients aged 18 to 85 years of age undergoing > 3 level anterior and posterior spine fusion surgery were enrolled in the study. Patients were followed throughout the operative procedure, and for 12 h postoperatively. In addition to standard American Society of Anesthesiologists monitors, invasive measurements including central venous pressure, continual analysis of stroke volume (SV), cardiac output (CO), cardiac index (CI), and stroke volume variability (SVV) was performed...
January 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28140639/measured-and-calculated-variables-of-global-oxygenation-in-healthy-neonatal-foals
#20
David M Wong, Kate L Hepworth-Warren, Beatrice T Sponseller, Joan M Howard, Chong Wang
OBJECTIVE To assess multiple central venous and arterial blood variables that alone or in conjunction with one another reflect global oxygenation status in healthy neonatal foals. ANIMALS 11 healthy neonatal foals. PROCEDURES Central venous and arterial blood samples were collected from healthy neonatal foals at 12, 24, 36, 48, 72, and 96 hours after birth. Variables measured from central venous and arterial blood samples included oxygen saturation of hemoglobin, partial pressure of oxygen, lactate concentration, partial pressure of carbon dioxide, and pH...
February 2017: American Journal of Veterinary Research
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