scholarly journals Gastric intramucosal pH, tissue oxygenation and acid-base balance

1995 ◽  
Vol 74 (5) ◽  
pp. 591-606 ◽  
Author(s):  
R.G. FIDDIAN-GREEN
Keyword(s):  
Tissue Oxygenation ◽  
Acid Base Balance ◽  
Acid Base ◽  
Intramucosal Ph ◽  
Gastric Intramucosal Ph ◽  
Base Balance

GASTRIC INTRAMUCOSAL pH (pHi) AND SYSTEMIC ACID-BASE BALANCE

Shock ◽  
1994 ◽  
Vol 2 (Supplement) ◽  
pp. 30
Author(s):  
Simon Atkinson ◽  
Nicholas Maynard ◽  
David Pierre ◽  
Robert Mason ◽  
Mark Smithies ◽  
...  
Keyword(s):  
Acid Base Balance ◽  
Acid Base ◽  
Intramucosal Ph ◽  
Gastric Intramucosal Ph ◽  
Base Balance

Effectiveness of tracheotomy on tissue oxygenation and acid-base balance in pediatric patients

B-ENT ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. 229-232
Author(s):  
Osman Erdogan ◽  
◽  
Ahmet Yukkaldiran ◽  
Keyword(s):  
Pediatric Patients ◽  
Tissue Oxygenation ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance

scholarly journals Arterial, Mixed Venous or Central Venous Hemogasometry and End Tidal CO2 in Dogs under Different Hemodynamic States

2017 ◽  
Vol 45 (1) ◽  
pp. 8
Author(s):  
Martielo Ivan Gehrcke ◽  
Doughlas Regalin ◽  
Vanessa Sasso Padilha ◽  
Felipe Comassetto ◽  
Gizelli Da Silva ◽  
...  
Keyword(s):  
Tissue Oxygenation ◽  
Pulmonary Ventilation ◽  
Venous Blood ◽  
Acid Base Balance ◽  
Central Venous ◽  
Acid Base ◽  
Central Venous Blood ◽  
Arterial Blood ◽  
Base Balance ◽  
Mixed Venous

Background: Hemogasometric analysis is used in the interpretation of acid-base balance (ABB) and to access pulmonary ventilation. Already mixed venous oxygen saturation obtained at pulmonary artery correlates with tissue oxygenation. However, both samples can be difficult to access because of the difficulties in arterial and pulmonary catheterization. The aim of this study was to evaluate the feasibility of replacing the arterial and mixed venous bloods, the end tidal pressure of carbon dioxide (EtCO2) and central venous blood in the analysis of pulmonary ventilation, tissue oxygenation and ABB in dogs under different hemodynamic states.Material, Methods & Results: Nine dogs were used with an average weight of 19.6 ± 1.3 kg, anesthetized with isoflurane at 1.4 V% diluted on oxygen 60% (Baseline), and subsequently undergoing mechanical ventilation (MV) and the hypodinamic state (Hypo) with isoflurane at 3.5V% and mean arterial pressure (MAP) lower than 50 mmHg and hyperdynamic state (Hyper) by dobutamine infusion at 5 μg/kg/min and with MAP 30% higher than baseline. For each time allowed a 15 min of stabilization by each hemodynamic status. Simultaneously were collected samples of 0.6 mL of arterial blood by metatarsal artery, mixed and central venous blood by pulmonary artery and right atrium for hemogasometric analysis. To access lung function we correlated and compared the EtCO2 values obtained by gas analyzer with expired carbon dioxide pressure in the arterial blood (PaCO2), mixed venous blood (PmvCO2) and central venous blood (PcvCO2). For the interpretation of tissue oxygenation we correlated and compared the values of mixed (SmvO2) and central (ScvO2) venous oxygen saturation. For the acid-base balance we used the correlation of potencial hydrogen (pH); carbon dioxide pressure (PCO2); bicarbonate ion (HCO3-); base excess (BE); anion GAP (AG); sodium ions (Na+), chlorine ions (Cl-), potassium ions (K+) and ionized calcium (iCa) of arterial (a) mixed venous (mv) and central venous (CV) bloods. Statistical analysis was performed using ANOVA-RM followed by Dunnet test for differences between times and Tukey’s test for differences among the samples (P ≤ 0.05). Pearson correlation analysis was performed using linear regression and for comparison methods we used the Bland-Altman analysis The EtCO2 values correlated (r = 0.87) and were according to Bland-Altman analysis with PaCO2 values (mean difference of -1.6 ± 2,9 mmHg for PaCO2. There were no differences (P ≤ 0.05) from SmvO2 and ScvO2. ScvO2 correlated (r = 0.91) with SmvO2 at different hemodynamic states and with a mean difference of -0.4 ± 2.5%. Both venous bloods were correlated with the analysis of arterial blood acid-base balance and electrolytes in different hemodynamic states. However, the ionized calcium levels were 40% lower in arterial blood.Discussion: EtCO2 measurement depends of monitor technology and proper pulmonar ventilation and perfusion. In this study the limiting factor in replacing the PaCO2 hair EtCO2 was spontaneous ventilation because in this state pulmonary ventilation is compromissed. With the use of MV was possible get up similar results in the pulmonar function analysis using the EtCO2 and PaCO2. The use of central venous blood instead mixed venous blood at oxygen saturation analysis provided adequate estimate this parameter. This being easier and less invasive technique. ABB was possible with all samples with own reference values for venous and arterial samples. This is an interesting result for critical patients where the arterial sample is difficult. In electrolytes the sample was indifferent except for calcium because pH interfere in this values. It was conclude that the values of EtCO2 and central venous blood are correlated and can replace arterial and mixed venous bloods in the analysis of lung function, tissue oxygenation and acid base balance.

Higher Dietary Acidity is Associated with Lower Bone Mineral Density in Postmenopausal Iranian Women, Independent of Dietary Calcium Intake

2014 ◽  
Vol 84 (3-4) ◽  
pp. 0206-0217 ◽  
Author(s):  
Seyedeh-Elaheh Shariati-Bafghi ◽  
Elaheh Nosrat-Mirshekarlou ◽  
Mohsen Karamati ◽  
Bahram Rashidkhani
Keyword(s):  
Calcium Intake ◽  
Dietary Calcium ◽  
Dietary Calcium Intake ◽  
Dietary Intakes ◽  
Iranian Women ◽  
Acid Base Balance ◽  
Mineral Density ◽  
Acid Base ◽  
Base Balance ◽  
Dietary Acid

Findings of studies on the link between dietary acid-base balance and bone mass are relatively mixed. We examined the association between dietary acid-base balance and bone mineral density (BMD) in a sample of Iranian women, hypothesizing that a higher dietary acidity would be inversely associated with BMD, even when dietary calcium intake is adequate. In this cross-sectional study, lumbar spine and femoral neck BMDs of 151 postmenopausal women aged 50 - 85 years were measured using dual-energy x-ray absorptiometry. Dietary intakes were assessed using a validated food frequency questionnaire. Renal net acid excretion (RNAE), an estimate of acid-base balance, was then calculated indirectly from the diet using the formulae of Remer (based on dietary intakes of protein, phosphorus, potassium, and magnesium; RNAERemer) and Frassetto (based on dietary intakes of protein and potassium; RNAEFrassetto), and was energy adjusted by the residual method. After adjusting for potential confounders, multivariable adjusted means of the lumbar spine BMD of women in the highest tertiles of RNAERemer and RNAEFrassetto were significantly lower than those in the lowest tertiles (for RNAERemer: mean difference -0.084 g/cm2; P=0.007 and for RNAEFrassetto: mean difference - 0.088 g/cm2; P=0.004). Similar results were observed in a subgroup analysis of subjects with dietary calcium intake of >800 mg/day. In conclusion, a higher RNAE (i. e. more dietary acidity), which is associated with greater intake of acid-generating foods and lower intake of alkali-generating foods, may be involved in deteriorating the bone health of postmenopausal Iranian women, even in the context of adequate dietary calcium intake.

The Effect of Long-term Topiramate Treatment on Acid-base Balance in Children with Epilepsy

2016 ◽  
Vol 24 (3) ◽  
pp. 116-121
Author(s):  
김지용 ◽  
남상욱 ◽  
김영미 ◽  
이윤진 ◽  
이훈상 ◽  
...  
Keyword(s):  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance

scholarly journals THE ACID-BASE BALANCE DISTURBANCE OF PREGNANCY

1932 ◽  
Vol 98 (1) ◽  
pp. 253-260 ◽  
Author(s):  
Victor C. Myers ◽  
Edward Muntwyler ◽  
Arthur H. Bill
Keyword(s):  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance
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