7,857 results match your criteria venous carbon

First Report of Xanthomonas campestris pv. campestris Causing Marginal Leaf Necrosis of Arugula (Eruca vesicaria subsp. sativa) in Serbia.

Plant Dis 2021 Sep 15. Epub 2021 Sep 15.

University of Belgrade, Faculty of Agriculture, Institute of Phytomedicine, Plant Pathology, Nemanjina 6, Belgrade, Serbia, 11080;

Arugula (Eruca vesicaria subsp. sativa (Miller) Thell., syn. Read More

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September 2021

Effects of different remifentanil target concentrations on MAC of sevoflurane in patients with liver dysfunction under carbon dioxide pneumoperitoneum stimulus: A randomized controlled trial.

J Clin Pharm Ther 2021 Sep 12. Epub 2021 Sep 12.

Department of Anesthesia, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.

What Is Known And Objective: Remifentanil can effectively decrease the sevoflurane concentration to block sympathetic adrenergic response to CO pneumoperitoneum stimulus,and liver dysfunction will significantly reduce the MAC (minimum alveolar concentration for blocking adrenergic response) of sevoflurane. However, the effects of different remifentanil concentrations on the MAC of sevoflurane in patients with liver dysfunction are unclear. The aim of this study was to observe the effects of different remifentanil concentrations by intravenous target-controlled infusion on the MAC of sevoflurane in patients with grade B liver dysfunction under carbon dioxide pneumoperitoneum stimulus. Read More

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September 2021

Changes in central venous-to-arterial carbon dioxide tension induced by fluid bolus in critically ill patients.

PLoS One 2021 10;16(9):e0257314. Epub 2021 Sep 10.

Department of Intensive Care, CHIREC Hospitals, Université Libre de Bruxelles, Bruxelles, Belgium.

Background: In this prospective observational study, we evaluated the effects of fluid bolus (FB) on venous-to-arterial carbon dioxide tension (PvaCO2) in 42 adult critically ill patients with pre-infusion PvaCO2 > 6 mmHg.

Results: FB caused a decrease in PvaCO2, from 8.7 [7. Read More

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September 2021

Evaluation of homeothermy, acid-base and electrolytic balance of black goats and ewes in an equatorial semi-arid environment.

J Therm Biol 2021 Aug 8;100:103027. Epub 2021 Jun 8.

Department of Animal Science, Federal University of the Semi-arid Region (UFERSA), 59625-900, Mossoró, Rio Grande do Norte, Brazil.

The aim of this study was to investigate the influence of environmental conditions and species on thermoregulatory responses, acid-base and electrolyte balance of black goats and ewes in an equatorial semi-arid environment. Ten Canindé goats and seven Morada Nova ewes with black coat color, all multiparous, aged between 2 and 3 years, non-lactating, non-pregnant, and body weight (B) of 22.84 ± 4. Read More

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Appl Environ Microbiol 2021 Sep 1:AEM0151921. Epub 2021 Sep 1.

Department of Oceanography, Texas A&M University, College Station, TX, United States.

International Ocean Discovery Program Expedition 360 drilled Hole U1473A at Atlantis Bank, an oceanic core complex on the Southwest Indian Ridge, with the aim of recovering representative samples of the lower oceanic crust. Recovered cores were primarily gabbro and olivine gabbro. These mineralogies may host serpentinization reactions that have the potential to support microbial life within the recovered rocks or at greater depths beneath Atlantis Bank. Read More

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September 2021

Lung transplant after long-term veno-venous extracorporeal membrane oxygenation: a case report.

J Cardiothorac Surg 2021 Aug 30;16(1):246. Epub 2021 Aug 30.

Department of Thoracic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.

Background: Although the number of patients who undergo extracorporeal membrane oxygenation (ECMO) as a bridge to lung transplantation is increasing worldwide, there are few reports on lung transplantation after long-term ECMO (more than 1 month). We report a rare case of successful bilateral lung transplantation in a Japanese patient after 5 months of veno-venous (VV)-ECMO support.

Case Presentation: A 27-year-old man who underwent bone marrow transplantation (BMTx) with fully matched human leukocyte antigen typing was diagnosed with bronchiolitis obliterans caused by chronic graft-versus-host disease 3 years after the BMTx. Read More

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Microbial Involvement in Carbon Transformation via CH and CO in Saline Sedimentary Pool.

Biology (Basel) 2021 Aug 17;10(8). Epub 2021 Aug 17.

Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland.

Methane and carbon dioxide are one of the most important greenhouse gases and significant components of the carbon cycle. Biogeochemical methane transformation may occur even in the extreme conditions of deep subsurface ecosystems. This study presents methane-related biological processes in saline sediments of the Miocene Wieliczka Formation, Poland. Read More

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Hemodynamic changes of anesthesia, pneumoperitoneum, and head-down tilt during laparoscopic surgery in elderly patients.

Ann Transl Med 2021 Jul;9(14):1177

The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China.

Background: The hemodynamic variations of cardiac and cerebral blood monitoring during pneumoperitoneum and head-down tilt position in general anesthetized elderly patients remain unresolved. We evaluated the time course of cerebral tissue oxygen saturation (SctO) and cardiac output (CO) and investigated how the changes in hemodynamic values during the surgery would affect cerebral perfusion in elderly patients.

Methods: In this prospective observational study of 47 elderly patients (≥65 years old, American Society of Anesthesiologists Physical status I to III) undergoing laparoscopic colorectal radical resection with head-down position, SctO by near-infrared spectroscopy and arterial pressure-based cardiac output (APCO), Cardiac index (CI), stroke volume (SV), and SV index (SVI) according to FloTrac/Vigileo were measured at 9 time points. Read More

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Formation of Magnesium Carbonates on Earth and Implications for Mars.

J Geophys Res Planets 2021 Jul 22;126(7):e2021JE006828. Epub 2021 Jun 22.

Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA.

Magnesium carbonates have been identified within the landing site of the Perseverance rover mission. This study reviews terrestrial analog environments and textural, mineral assemblage, isotopic, and elemental analyses that have been applied to establish formation conditions of magnesium carbonates. Magnesium carbonates form in five distinct settings: ultramafic rock-hosted veins, the matrix of carbonated peridotite, nodules in soil, alkaline lake, and playa deposits, and as diagenetic replacements within lime-and dolostones. Read More

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A COVID-Positive 52-Year-Old Man Presented With Venous Thromboembolism and Disseminated Intravascular Coagulation Following Johnson & Johnson Vaccination: A Case-Study.

Cureus 2021 Jul 14;13(7):e16383. Epub 2021 Jul 14.

Emergency Medicine, Internal Medicine, Santa Rosa Medical Center, Pensacola, USA.

The coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2). Infection by the SARS-CoV-2 increases the risk for systematic multi-organ complications and venous, arterial thromboembolism. The need for an effective vaccine to combat the pandemic prompted the Centers for Disease Control and Prevention (CDC) and Food and Drug Administration (FDA) to approve a nationwide distribution of the Ad26. Read More

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Role of Pv-aCO gradient and Pv-aCO/Ca-vO ratio during cardiac surgery: a retrospective observational study.

Braz J Anesthesiol 2021 Aug 15. Epub 2021 Aug 15.

Universidad de la República, School of Medicine, Hospital de Clínicas, Department of Anesthesiology, Montevidéu, Uruguay. Electronic address:

Introduction: Arterial lactate, mixed venous O saturation, venous minus arterial CO partial pressure (PCO) and the ratio between this gradient and the arterial minus venous oxygen content (PCO/CO) were proposed as markers of tissue hypoperfusion and oxygenation. The main goals were to characterize the determinants of PCO and PCO/CO, and the interchangeability of the variables calculated from mixed and central venous samples.

Methods: 35 cardiac surgery patients were included. Read More

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Pre-emptive veno-venous ECMO in advanced tracheal malignancy prior to tracheal stenting.

BMJ Case Rep 2021 Aug 17;14(8). Epub 2021 Aug 17.

Radiology, SQUH, Muscat, Oman.

Extracorporeal membrane oxygenation (ECMO) is helpful in providing ventilatory support when other conventional methods of ventilation fail. We report a case of successful management of advanced tracheal malignancy with impeding airway obstruction where veno-venous ECMO (VV-ECMO) was instituted prior to performing critical endotracheal procedure. After securing the VV-ECMO through right jugular vein and left femoral vein under local anaesthesia, the tracheal stent placement was conducted under flexible bronchoscope and fluoroscope control. Read More

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Acute hyperventilation increases oxygen consumption and decreases peripheral tissue perfusion in critically ill patients.

J Crit Care 2021 May 21. Epub 2021 May 21.

Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China. Electronic address:

Purpose: This study aimed to evaluate the effects of acute hyperventilation on central venous-to-arterial carbon dioxide tension difference (Pv-aCO), central venous oxygen saturation (ScvO), central venous-to-arterial CO difference/arterial-central venous O difference ratio (COGAP-Ratio), and peripheral perfusion index (PI) in hemodynamically stable critically ill patients.

Methods: Fifty-four mechanically ventilated patients were evaluated. The cardiac index, Pv-aCO, ScvO, COGAP-Ratio, PI, and arterial and venous blood gas parameters were measured in the first set of measurements. Read More

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Elimination of CO2 insufflation-induced hypercapnia in open heart surgery using an additional venous reservoir.

Interact Cardiovasc Thorac Surg 2021 Aug;33(3):483-488

Division of Perioperative Medicine and Intensive Care, Section Cardiothoracic Surgery and Anesthesiology, Karolinska University Hospital, Stockholm, Sweden.


Objectives: Carbon dioxide (CO2) gas insufflation is used for continuous de-airing during open heart surgery. The aim was to evaluate if an additional separate venous reservoir eliminates CO2 insufflation-induced hypercapnia and keeps sweep gas flow of the oxygenator constant.

Methods: A separate reservoir was used during cardiopulmonary bypass in addition to a standard venous reservoir. Read More

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Nurses' experience of patient care using extracorporeal membrane oxygenation.

Nurs Crit Care 2021 Aug 4. Epub 2021 Aug 4.

Nursing and Midwifery Care Research Center, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran.

Background: Extracorporeal membrane oxygenation (ECMO) is an advanced form of temporary life support, to aid respiratory and/or cardiac function, which diverts venous blood through an extracorporeal circuit and returns it to the body after gas exchange through a semipermeable membrane. It may be used for oxygenation, carbon dioxide removal, and hemodynamic support. ECMO has been available to patients in Iran for only about 4 years. Read More

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Veno-venous extracorporeal blood phototherapy increases the rate of carbon monoxide (CO) elimination in CO-poisoned pigs.

Lasers Surg Med 2021 Aug 5. Epub 2021 Aug 5.

Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.

Background And Objectives: Carbon monoxide (CO) inhalation is the leading cause of poison-related deaths in the United States. CO binds to hemoglobin (Hb), displaces oxygen, and reduces oxygen delivery to tissues. The optimal treatment for CO poisoning in patients with normal lung function is the administration of hyperbaric oxygen (HBO). Read More

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Portal hypertension in cirrhosis: Pathophysiological mechanisms and therapy.

JHEP Rep 2021 Aug 4;3(4):100316. Epub 2021 Jun 4.

Translational Hepatology, Department of Internal Medicine I, University Clinic Frankfurt, Frankfurt, Germany.

Portal hypertension, defined as increased pressure in the portal vein, develops as a consequence of increased intrahepatic vascular resistance due to the dysregulation of liver sinusoidal endothelial cells (LSECs) and hepatic stellate cells (HSCs), frequently arising from chronic liver diseases. Extrahepatic haemodynamic changes contribute to the aggravation of portal hypertension. The pathogenic complexity of portal hypertension and the unsuccessful translation of preclinical studies have impeded the development of effective therapeutics for patients with cirrhosis, while counteracting hepatic and extrahepatic mechanisms also pose a major obstacle to effective treatment. Read More

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Reversibility of total airway closure and alveolar consolidation in a COVID-19 patient: A case study.

Nurs Crit Care 2021 Jul 29. Epub 2021 Jul 29.

Department of Medical and Toxicological Critical Care, Lariboisière Hospital, APHP, Paris, France.

Coronavirus disease 2019 (COVID-19) may be complicated by life-threatening pneumonia requiring tracheal intubation, mechanical ventilation and veno-venous extracorporeal membrane oxygenation (vvECMO). It is not yet clear to what extent and after which delay the most severe cases of COVID-19 pneumonia are reversible. Here, we present a 39-year-old patient who developed a severe COVID-19-attributed acute respiratory distress syndrome (ARDS) resulting in complete alveolar consolidation and airway closure for several weeks. Read More

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Treatment of Severe Hypercapnic Respiratory Failure Caused by SARS-CoV-2 Lung Injury with ECCOR Using the Hemolung Respiratory Assist System.

Case Rep Crit Care 2021 29;2021:9958343. Epub 2021 Jun 29.

Minneapolis Heart Institute Foundation, Minneapolis, MN 55407, USA.

Acute respiratory distress syndrome (ARDS) due to COVID-19 leads to a high rate of mortality in the intensive care unit (ICU). A lung-protective mechanical ventilation strategy using low tidal volumes is a cornerstone to management, but uncontrolled hypercapnia is a life-threatening consequence among severe cases. A mechanism to prevent progressive hypercapnia may offset hemodynamic instability among patients who develop hypercapnia. Read More

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Two Consecutive Runs of Veno-Venous Extracorporeal Membrane Oxygenation in a Peripartum Patient with COVID-19 Acute Respiratory Distress Syndrome.

Case Rep Crit Care 2021 9;2021:2032197. Epub 2021 Jul 9.

Department of Medicine (DIMED), Padua University School of Medicine, Italy.

Veno-venous extracorporeal membrane oxygenation (V-V ECMO) may be required to treat critically ill patients with COVID-19-associated severe acute respiratory distress syndrome (ARDS). We report the case of a 43-year-old peripartum patient, who underwent two sequential V-V ECMO runs. The first extracorporeal support was established for COVID-19 ARDS, as characterized by severe hypoxemia and hypercapnia (arterial partial pressure of oxygen to inspired oxygen fraction ratio 85 mmHg and arterial partial pressure of carbon dioxide 95 mmHg) and reduction of respiratory system static compliance to 25 mL/cmHO, unresponsive to mechanical ventilation and prone positioning. Read More

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Ventilatory efficiency in pulmonary vascular diseases.

Eur Respir Rev 2021 Sep 20;30(161). Epub 2021 Jul 20.

Sorbonne Université, INSERM, UMRS1158 Neurophysiologie respiratoire expérimentale et clinique, Paris, France

Cardiopulmonary exercise testing (CPET) is a frequently used tool in the differential diagnosis of dyspnoea. Ventilatory inefficiency, defined as high minute ventilation ( ) relative to carbon dioxide output ( ), is a hallmark characteristic of pulmonary vascular diseases, which contributes to exercise intolerance and disability in these patients. The mechanisms of ventilatory inefficiency are multiple and include high physiologic dead space, abnormal chemosensitivity and an altered carbon dioxide (CO) set-point. Read More

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September 2021

MULTI-PHACET: multidimensional clinical phenotyping of hospitalised acute COPD exacerbations.

ERJ Open Res 2021 Jul 12;7(3). Epub 2021 Jul 12.

Monash Lung and Sleep, Monash Health, Melbourne, Australia.

Background: The generic term "exacerbation" does not reflect the heterogeneity of acute exacerbations of COPD (AECOPD). We utilised a novel algorithmic strategy to profile exacerbation phenotypes based on underlying aetiologies.

Methods: Patients hospitalised for AECOPD (n=146) were investigated for aetiological contributors summarised in a mnemonic acronym ABCDEFGX (A: airway virus; B: bacterial; C: co-infection; D: depression/anxiety; E: eosinophils; F: failure (cardiac); G: general environment; X: unknown). Read More

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Successive perioperative management of laparoscopic liver resection in the reverse Trendelenburg position for a patient with Fontan physiology: a case report.

JA Clin Rep 2021 Jul 13;7(1):56. Epub 2021 Jul 13.

Anesthesiology and Perioperative Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.

Background: Laparoscopic surgery for a patient with Fontan physiology is challenging because pneumoperitoneum and positive pressure ventilation could decrease venous return and the accumulated partial pressure of arterial carbon dioxide (PaCO) could increase pulmonary vascular resistance, which might lead to disruption of the hemodynamics.

Case Presentation: A 25-year-old man with Fontan physiology was scheduled to undergo laparoscopic liver resection for Fontan-associated liver disease (FALD) with noninvasive monitoring of cardiac output (CO) by transpulmonary thermodilution in addition to transesophageal echocardiography. The abdominal air pressure was maintained low, and we planned to switch to open abdominal surgery promptly if hemodynamic instability became apparent because of the accumulated PaCO or postural change. Read More

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Acute neurological injury in pediatric patients with single-ventricle congenital heart disease.

J Neurosurg Pediatr 2021 Jul 9:1-9. Epub 2021 Jul 9.

4Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia.

Objective: Single-ventricle congenital heart disease (CHD) in pediatric patients with Glenn and Fontan physiology represents a unique physiology requiring the surgical diversion of the systemic venous return from the superior vena cava (Glenn) and then the inferior vena cava (Fontan) directly to the pulmonary arteries. Because many of these patients are on chronic anticoagulation therapy and may have right-to-left shunts, arrhythmias, or lymphatic disorders that predispose them to bleeding and/or clotting, they are at risk of experiencing neurological injury requiring intubation and positive pressure ventilation, which can significantly hamper pulmonary blood flow and cardiac output. The aim of this study was to describe the complex neurological and cardiopulmonary interactions of these pediatric patients after acute central nervous system (CNS) injury. Read More

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Severe SARS-CoV-2 pneumonia: Clinical, functional and imaging outcomes at 4 months.

Respir Med Res 2021 Apr 28;80:100822. Epub 2021 Apr 28.

Department of Pneumology, Larrey Hospital, CHU Toulouse, Toulouse, France.

Introduction: Given the pathophysiology of coronavirus disease 19 (COVID-19), persistent pulmonary abnormalities are likely.

Methods: We conducted a prospective cohort study in severe COVID-19 patients who had oxygen saturation<94% and were primarily admitted to hospital. We aimed to describe persistent gas exchange abnormalities at 4 months, defined as decreased diffusing capacity of the lungs for carbon monoxide (DLco) and/or desaturation on the 6-minute walk test (6MWT), along with associated mechanisms and risk factors. Read More

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A Noninvasive Miniaturized Transcutaneous Oxygen Monitor.

IEEE Trans Biomed Circuits Syst 2021 06 12;15(3):474-485. Epub 2021 Aug 12.

Transcutaneous monitoring is a noninvasive method to continuously measure the partial pressures of oxygen and carbon dioxide that diffuse through the skin and correlate closely with changes in blood gases. However, the contemporary commercially available electrochemical-based technology requires a heating mechanism and a bulky, corded, and expensive sensing unit. This study aims to demonstrate a prototype noninvasive, miniaturized monitor that uses luminescence-based technology to measure the partial pressure of transcutaneous oxygen, a surrogate of the partial pressure of arterial oxygen. Read More

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Early post-operative PCO/CO predicts subsequent acute kidney injury after complete repair of tetralogy of Fallot.

Cardiol Young 2021 Jul 2:1-6. Epub 2021 Jul 2.

Department of Pediatric Critical Care Medicine, Xinhua Hospital, Affiliated to the Medical School of Shanghai Jiaotong University, 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China.

Background: Acute kidney injury is a severe complication following complete repair of tetralogy of Fallot. Anaerobic metabolism is believed to contribute to the development of acute kidney injury. The ratio of central venous to arterial carbon dioxide tension to arterio-venous oxygen content (PV-ACO2/CA-VO2) has been proposed as a surrogate for respiratory quotient and an indicator of tissue oxygenation. Read More

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Decreased Portal Circulation Augments Fibrosis and Ductular Reaction in Nonalcoholic Fatty Liver Disease in Mice.

Am J Pathol 2021 09 11;191(9):1580-1591. Epub 2021 Jun 11.

Division of Tumor Pathology, Department of Pathology, Asahikawa Medical University, Asahikawa, Japan. Electronic address:

Nonalcoholic fatty liver disease often progresses to cirrhosis and causes liver cancer, but mechanisms of its progression are yet to be elucidated. Although nonalcoholic fatty liver disease is often associated with abnormal portal circulation, there have not been any experimental studies to test its pathogenic role. Here, whether decreased portal circulation affected the pathology of nonalcoholic steatohepatitis (NASH) was examined using congenital portosystemic shunt (PSS) in C57BL/6J mice. Read More

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September 2021

Efficacy of high-flow nasal cannula therapy in bedridden patients.

Pediatr Int 2021 Jun 9. Epub 2021 Jun 9.

Shiga General Hospital, Moriyama, Japan.

Background: A growing number of studies have demonstrated the efficacy of high-flow nasal cannula therapy (HFNC) for treating children with acute respiratory distress. However, it remains unknown whether HFNC is effective in bedridden patients with acute respiratory distress.

Method: We retrospectively reviewed the medical records of bedridden patients with acute respiratory distress that were treated with HFNC using a home ventilator in continuous positive airway pressure (CPAP) mode at our center between March 2014 and August 2016. Read More

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Effects of 45° prone position ventilation in the treatment of acute respiratory distress syndrome: A protocol for a randomized controlled trial study.

Medicine (Baltimore) 2021 May;100(19):e25897

Guangzhou Panyu Central Hospital.

Background: Acute respiratory distress syndrome (ARDS) is an increasingly common acute respiratory failure that seriously threaten people's health. ARDS has a case fatality rate of up to 40%. ARDS is a serious threat to the life safety of patients and the quality of life, causing a huge economic burden to individuals, families and society. Read More

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