نتایج جستجو برای: blood lactate arterial

تعداد نتایج: 790060  

Journal: :Critical Care 2006
Marco Ranucci Barbara De Toffol Giuseppe Isgrò Federica Romitti Daniela Conti Maira Vicentini

INTRODUCTION Hyperlactatemia during cardiopulmonary bypass is relatively frequent and is associated with an increased postoperative morbidity. The aim of this study was to determine which perfusion-related factors may be responsible for hyperlactatemia, with specific respect to hemodilution and oxygen delivery, and to verify the clinical impact of hyperlactatemia during cardiopulmonary bypass i...

Journal: :Journal of applied physiology 1998
F Maltais J Jobin M J Sullivan S Bernard F Whittom K J Killian M Desmeules M Bélanger P LeBlanc

Premature lactic acidosis during exercise in patients with chronic obstructive pulmonary disease (COPD) may play a role in exercise intolerance. In this study, we evaluated whether the early exercise-induced lactic acidosis in these individuals can be explained by changes in peripheral O2 delivery (O2). Measurements of leg blood flow by thermodilution and of arterial and femoral venous blood ga...

Journal: :The Japanese journal of physiology 2001
J I Medbø K Toska

To study the release of lactate from muscle and its relationship to the blood lactate concentration during and after intense bicycling, young men cycled at 5.5 W kg(-1) body mass for 2 min to exhaustion or stopped after 1 min (nonexhaustive ride). The leg's release of lactate during and after each ride was taken from the measured blood flow and lactate concentrations in arterial and femoral-ven...

2012
Martin Faulhaber Tobias Dünnwald Hannes Gatterer Luciano Bernardi Martin Burtscher

Intermittent hypoxic exposure (IHE) has been shown to induce aspects of altitude acclimatization which affect ventilatory, cardiovascular and metabolic responses during exercise in normoxia and hypoxia. However, knowledge on altitude-dependent effects and possible interactions remains scarce. Therefore, we determined the effects of IHE on cardiorespiratory and metabolic responses at different s...

2016
A Purcarea A Bourgarit A Sovaila C Ghiura P Diemunsch E Andres

OBJECTIVE In intensive care settings, blood lactate level measurement proved to be an excellent predictor of outcomes. In patients requiring less urgent treatment, the arterial blood lactate is less sensitive and its usefulness remains to be proven. Capillary blood lactate dosing, an emergent point-of-care technique readily available should be more sensitive to changes in these settings. METH...

اخلاق, سید هدایت اله, الهیاری, الهه, ضیغمی, داود, عظمتی, سیمین, علیپور, عباس, مقصودی, بهزاد, هادوی, سید محمدرضا,

Background & objectives: Cardiopulmonary bypass often causes a stress hormonal response with subsequent changes in hemodynamic and organ perfusion. Human studies involving cardiopulmonary bypass have shown that very low doses of ketamine can attenuate inflammatory and stress markers, without adverse effects. The aim of this study was to investigate whether low dose infusion of ketamine have hem...

Journal: :Japanese heart journal 1971
M Fujishima

Cerebral perfusion pressure was reduced by graded constricting of both carotid arteries in the anesthetized dogs, of which vertebral arteries were ligated bilaterally. Cerebral blood flow and cerebral metabolic rate of oxygen remained unchanged until cerebral perfusion pressure was lowered to about 50 mm.Hg, indicating that cerebral autoregulation was preserved normally in these animals. Despit...

2004
E. S. TURRELL S. ROBINSON

and the associated extra output of CO2 through the lungs acts as one of the principal buffering mechanisms of the body. However observations upon the relation of the magnitude of changes in lactate and CO2 capacity have been contradictory. Mellanby and Thomas (1920) and Evans (1922), by addition of lactic acid to drawn blood, found that the decline in CO2 content was less than the increase in b...

Journal: :journal of fasting and health 0
muhammad ishaq department of medicine, jinnah medical college hospital, jinnah medical and dental college, karachi, pakistan farhan khalid department of medicine, jinnah medical college hospital, jinnah medical and dental college, karachi, pakistan muhammad shahzeb ali department of medicine, jinnah medical college hospital, jinnah medical and dental college, karachi, pakistan mikram jafferi department of medicine, jinnah medical college hospital, jinnah medical and dental college, karachi, pakistan jibran sualeh muhammad department of internal medicine , faculty of medicine, university of toyama, toyama, japan

introduction: world health organization (who) introduced hypertension as an epidemic in developing countries. however, hypertension is adequately controlled in only 12.5% of patients.  the aim of this study was to evaluate the relationship between ramadan fasting and mean arterial pressure (map). methods: this clinical, observational study was carried out at medical o.p.d of jinnah medical coll...

Journal: :The Journal of clinical investigation 1958
W E HUCKABEE

During septic shock, muscle produces lactate by way of an exaggerated NaKYadenosine triphosphatase (ATPase)Ystimulated aerobic glycolysis associated with epinephrine stimulation possibly through "2 adrenoreceptor involvement. It therefore seems logical that a proportion of hyperlactatemia in low cardiac output states would be also related to this mechanism. Thus, in low-flow and normal-to-highY...

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