scholarly journals Venous hemogasometry of equines finalists in 90 km endurance races

2014 ◽  
Vol 34 (6) ◽  
pp. 589-592
Author(s):  
Cinthia B.S. Dumont ◽  
Camila A.O. Bello ◽  
André R.C.B. Vianna ◽  
Roberta F. Godoy ◽  
Eduardo M.M. Lima
Keyword(s):  
Oxygen Saturation ◽  
Athletic Performance ◽  
Physiological Response ◽  
Venous Blood ◽  
Blood Gases ◽  
Acid Base ◽  
Optimum Performance ◽  
Organic Systems ◽  
Physiological Adaptations ◽  
Type Of Exercise

Front of exercise, the organic systems may suffer water-electrolyte and acid-base imbalances, particularly in the case of blood gases, demonstrating variations from different causes, whether respiratory and/or metabolic. Understanding the physiological adaptations to exercise is essential in the search for the optimum performance. In this way, this study measured the venous blood gases (pO2, pCO2), as well as the oxygen saturation (SatO2) in healthy equines, Arabian horses finalists in 90km endurance races. A total of fourteen Arabian horses were evaluated, nine males and five females, between six and 12 years old, finalists in 90km endurance races. There was a significant reduction in pO2, pCO2 and SatO2 after the exercise, however, the values remained within the normality range, and did not change the athletic performance of the animals, indicating a temporary alteration, assuming thus a character of physiological response to the exercise performed. The equines, finalists in 90 Km endurance races, demonstrated efficient ventilatory process, without any alterations in the athletic performance, being adapted to the type of exercise imposed.

A comparison of blood gases and acid-base measurements in arterial, arterialized venous, and venous blood during short-term maximal exercise

1990 ◽  
Vol 61 (3-4) ◽  
pp. 294-301 ◽  
Author(s):  
Jon Linderman ◽  
Thomas D. Fahey ◽  
Gregory Lauten ◽  
Alan S. Brooker ◽  
Doug Bird ◽  
...  
Keyword(s):  
Maximal Exercise ◽  
Venous Blood ◽  
Blood Gases ◽  
Acid Base ◽  
Short Term

The influence of intra-aortic balloon counter pulsation on central venous blood oxygen saturation

Perfusion ◽  
2021 ◽  
pp. 026765912110559
Author(s):  
Ayman Mohamed ◽  
Sameh Aboulnaga ◽  
Fayez Hamwi ◽  
Amr S Omar ◽  
Abdulrasheed Pattath ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Oxygen Saturation ◽  
Venous Blood ◽  
Blood Gases ◽  
Left Ventricular ◽  
Arterial Oxygen ◽  
Secondary Outcome ◽  
Central Venous ◽  
Significant Difference

Objectives We aim at identifying the changes in venous blood saturation values that associates intra-aortic balloon pump (IABP) in cardiac surgery patients with reduced left ventricular function (LVF). Methods A retrospective observational study was conducted in a cardiothoracic intensive care unit (CTICU) in a tertiary cardiac center over 5 years in Qatar. A total of 114 patients with at least moderate impairment of LVF with ejection fraction (EF) less than 40% were enrolled. According to the association of IABP, patients were segregated into two groups with and without IABP (groups 1, 40 patients and group 2, 74 patients). Sequential arterial and venous blood gases were analyzed. The primary outcome was to analyze the changes in the central venous saturation (ScvO2) in both groups and the secondary outcome was to analyze whether these changes affect the overall outcome in terms of intensive care unit (ICU) length of stay. Results There was no significant difference between both groups with regard to age, preoperative EF, hemoglobin, and arterial oxygen saturation (SaO2) in blood gases. Patients with IABP have a higher cScvO2 when compared to the other group (71.5 ± 12.5 vs 63.5 ± 9.3, 68.3 ± 12.6 vs 60.1 ± 9.5, 62.7 ± 10.8 vs 55.63 ± 8.1, and 60.6 ± 7.6 vs 54.9 ± 8.1; p = 0.04, 0.05, 0.03, and 0.5, respectively). However, generalized estimating equations (GEE) analysis showed that compared with the participants showing that there is a decreasing trend in mean levels within the groups during follow-ups, overall difference between both groups’ mean levels was not statistically significant. Conclusions In this study, we observed that after cardiac surgeries, patients with IABP had non-significant higher ScvO2 when compared with a corresponding group with moderate impairment of LVF. Further prospective studies are required to validate these findings.

“Shunt index” can be used to predict clinically significant patent ductus arteriosus in premature neonates in early post-natal life

2013 ◽  
Vol 24 (4) ◽  
pp. 605-609 ◽  
Author(s):  
Ece Yapakçı ◽  
Ayşe Ecevit ◽  
Birgin Törer ◽  
Deniz Anuk Ince ◽  
Mahmut Gökdemir ◽  
...  
Keyword(s):  
Patent Ductus Arteriosus ◽  
Oxygen Saturation ◽  
Preterm Infants ◽  
Ductus Arteriosus ◽  
Venous Blood ◽  
Blood Gases ◽  
Oxygen Extraction ◽  
Caval Vein ◽  
Inferior Caval Vein ◽  
Patent Ductus

AbstractBackground: This study aimed to examine the differences between arterial and inferior caval vein oxygen saturation, fractional oxygen extraction, and the shunt index, which were calculated in the diagnosis of patent ductus arteriosus. Methods: Twenty-seven preterm infants were included in this study and were divided into two groups according to patent ductus arteriosus. Among them, 11 (41%) infants had haemodynamically significant patent ductus arteriosus and 16 (59%) did not have significant patent ductus arteriosus. Synchronous arterial and venous blood gases were measured during the first post-natal hours after the insertion of umbilical catheters. The differences between arterial and inferior caval vein oxygen saturation, inferior body fractional oxygen extraction, and the shunt index were calculated. Echocardiography was performed before the 72nd hour of life in a selected group of patients who had haemodynamically significant patent ductus arteriosus. Ibuprofen treatment was administered to patients with patent ductus arteriosus. Echocardiography was performed on the 72nd hour of life in preterm infants without any clinical suspicion of patent ductus arteriosus. Results: The early measured differences between arterial and inferior caval vein oxygen saturation and inferior body fractional oxygen extraction were found to be lower and the shunt index was found to be higher in the haemodynamically significant patent ductus arteriosus group than in the group without haemodynamically significant patent ductus arteriosus. Conclusion: We found that the shunt index, calculated in the first hours of life as ≥63%, predicted haemodynamically significant patent ductus arteriosus with a sensitivity of 78% and specificity of 82% in preterm newborns.

scholarly journals The Alkaline Diet and the Warburg Effect

2021 ◽  
Vol 12 (1) ◽  
pp. 20-39
Author(s):  
Hassan Bahrami ◽  
Ted Greiner
Keyword(s):  
Oxygen Saturation ◽  
Warburg Effect ◽  
Venous Blood ◽  
The Body ◽  
Carbon Dioxide Partial Pressure ◽  
Acid Base Balance ◽  
Acid Base ◽  
Blood Ph ◽  
Effect Theory ◽  
Base Balance

The changing diets accompanying our modern life style have increased the content of foods that form acidic metabolic waste residues in the body. Wastes from these metabolic processes are released into the interstitial fluids and the blood, slightly changing their pH temporarily. This link may in turn have an impact on the incidence of non-communicable diseases (NCDs). According to Warburg effect theory, an acidic cellular and circulatory environment may cause various specific health problems such as hypoxia and cancer, whereas an oxygen-rich optimum-alkaline environment could retain healthy cells. However, the mechanisms by which the diet may be influential on blood pH-related parameters and on health have remained largely unknown. This paper begins with a detailed presentation of the concepts, issues and the existing evidence regarding alkaline and acid forming diets, and summarizes the three main mechanisms by which the diet influences the acid-base balance in the body. It then presents the findings of a small exploratory study in which one author (HB) followed diets traditionally thought to produce alkaline or acidic residues. After each diet period of one month (with a two-month wash out period), pH, oxygen saturation, and carbon dioxide partial pressure were measured for arterial and for venous blood.   The resulting data indicated that the diets followed changed blood pH-related parameters in the expected directions according to the acid-base theory of health. Increased intake of acid-forming foods resulted in a slightly lower pH level, but a significant reduction of oxygen saturation in the blood, whereas increased consumption of alkaline forming foods maintained the high oxygen saturation in the blood that, according to Warburg effect theory, may, if maintained, reduce the incidence of NCDs. Further cross-over research of this kind is needed, utilizing large samples and testing various dietary modifications.

Changes in acid-base balance and blood gases during muscular activity and recovery

1959 ◽  
Vol 14 (3) ◽  
pp. 328-332 ◽  
Author(s):  
R. De Lanne ◽  
J. R. Barnes ◽  
L. Brouha ◽  
F. Massart
Keyword(s):  
Environmental Temperature ◽  
Venous Blood ◽  
Muscular Activity ◽  
Blood Gases ◽  
Blood Oxygen ◽  
Ambient Conditions ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Males And Females

Changes in the blood gases and acid-base balance during muscular work and recovery were investigated for males and females under various controlled environmental conditions. Changes in venous blood oxygen and carbon dioxide are influenced both by the intensity and duration of the exercise and by the environmental temperature. The pH of the blood is similarly affected. The direct measurement of pH was found to be a better index of the variation in the acid-base balance than the pH calculated from Henderson's equation at a fixed CO2 pressure. Lactic acid in the blood is, like the blood gases, influenced by ambient conditions, but is more closely related to the intensity than to the duration of the exercise. Submitted on October 28, 1958

scholarly journals Evaluation of venous blood gas levels, blood chemistry and haemocytometric parameters in milk fed veal calves at different periods of livestock cycle

2016 ◽  
Vol 19 (4) ◽  
pp. 745-752
Author(s):  
S. Giambelluca ◽  
E. Fiore ◽  
A. Sadocco ◽  
M. Gianesella ◽  
I. Vazzana ◽  
...  
Keyword(s):  
Hematological Parameters ◽  
Venous Blood ◽  
Blood Gases ◽  
Blood Chemistry ◽  
Blood Parameter ◽  
Blood Gas ◽  
Gamma Glutamyl Transpeptidase ◽  
Acid Base ◽  
Veal Calves ◽  
North East

Abstract An evaluation of blood chemistry profile in relation to specific stages of livestock cycle can help better understand variations in physiological conditions in order to adjust management systems to animal needs. In addition to basal hematological investigation, the acid-base balance and blood gases are essential tools in evaluating metabolism in calves. The relationship between blood gas parameters, diet and growth should be further investigated. The aim of this study was to evaluate changes in acid-base status, blood gases, serum chemistry and hematological parameters in veal calves at different periods of livestock cycle. One hundred twenty-eight healthy cross breeding calves were enrolled in a farm in North-East Italy. Blood samplings were carried out from the jugular vein on day 1 (t1), 60 (t2) and 150 (t3) after arrival. Blood gas analysis was performed and hematological parameters were evaluated. One-way ANOVA and Tukey-Kramer post-hoc test were performed to assess differences between blood parameter values at the different periods. The main differences in blood gas parameter levels during the livestock cycle concerned pH, Base Excess and HCO3 with higher values recorded in t3. Urea, creatinine, gamma-glutamyl transpeptidase and bilirubin mean values were significantly higher in t1 than in t2 and t3. Aspartate aminotransferase increased from t1 to t2 and t3. Alkaline Phosphatase was higher in t2. Fe levels severely dropped in t2 and in t3, and the decrease led to a restrained but significant reduction in haemoglobin values. A correspondent decrease in the other haemocytometric parameters was found.

STUDY OF ACID BASE BALANCE IN CHRONIC SEVERE ANAEMIA

2021 ◽  
pp. 48-51
Author(s):  
Balbinder Kumar ◽  
Ganesh Narayan Jha ◽  
Debarshi Jana
Keyword(s):  
Respiratory Infections ◽  
Venous Blood ◽  
Blood Gases ◽  
Severe Anaemia ◽  
Clinical State ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Parameters ◽  
Base Balance

Aim of the study role of acid base balance in chronic severe anaemic patients admitted in Department of Medicine, Darbhanga Medical College and Hospital, Laheriasarai, Bihar. Study subject include 50 chronic and severe anaemic patients. All the fty cases underwent detailed haematological, biochemical, electrocardiographic, roentgenographic studies followed by extensive analysis of blood for blood gases and acid base parameters at the onset. Some were further studied for venous blood lactate and the effect of intravenous frusemide on the acid base parameters and the clinical state of the patient. Twenty normal controls were also studied. Work in future on the problem of chronic severe anaemia should include cases with cardiac failure and other complications like respiratory infections etc. and they should be studied for myocardial function, glomerular ltration rate and renal anion transport in addition to blood gases and acid base study as done by us. The role of ionotropic agents should be studied in such cases in isolation from that with diuretics. The administration of oxygen alone with a mask is also expected to improve almost all parameters quickly and should be studied.

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