Phase 2c Dose Comparison Study of MP4OX in Trauma
TraumaHemorrhagic Shock1 moreMP4OX is being developed as an ischemic rescue therapy to perfuse and oxygenate tissues at risk during hemorrhagic shock. MP4OX is a pegylated hemoglobin-based colloid designed to improve perfusion and target delivery of oxygen to ischemic tissues. This study will evaluate safety and efficacy of MP4OX treatment, in addition to standard therapy, in trauma patients suffering from lactic acidosis due to severe hemorrhagic shock.
Safety of Continuing Metformin in Diabetic Patients With Normal Kidney Function Receiving Contrast...
Diabetes MellitusLactic AcidosisThe purpose of this study is to determine whether metformin causes lactic acidosis in diabetic patients with preserved kidney function, undergoing coronary angiography or angioplasty with new contrast media. In other words is it necessary to discontinue metformin before these procedures, even when Iodixanol is used as contrast media, which is isosmolar agent and much more safer than urografin which was the main agent in the previous studies that were the base of present guidelines?
Prevention of Dichloroacetate Toxicity
AcidosisLactic1 moreThis is a study to determine the safety of dichloroacetate (DCA) with a low-tyrosine diet given with or without nitisinone (NTBC) in children with chronic lactic acidosis (CLA).
Preoperative Parenteral Thiamine Supplementation in Patients Undergoing Heart Surgery
Heart FailureAcidosis2 moreThe objective of this study is to determine whether preoperative parenteral thiamin supplementation does prevent the intra and early postoperative increase of lactate and whether this effect is related to the extent of thiamine deficiency in patients undergoing heart surgery. In addition the prevalence of major thiamin deficiency in patient undergoing heart surgery will be determined.
Lactate Metabolism Study in HIV Infected Persons
HIV InfectionsAIDS2 moreLactic acidosis is a potentially life-threatening disease associated with the treatment of chronic HIV infection. Although acidosis is rare, hyperlactatemia is common and may have long term consequences yet to be recognized. Lactic acidosis is a manifestation of mitochondrial toxicity; consequences which have yet to be fully recognized and understood. In this study, we propose to look at lactate clearance and production by two methods, in four treatment groups, including HIV positive subjects on highly active antiretroviral therapy (HAART) treatment regimes and without HAART regimes, with liver steatosis and without, and compared with HIV negative controls. Supplementation with cofactors thiamine, niacin and L-carnitine, which may have a positive effect on lactate metabolism by facilitating mitochondrial function, will be studied as well.
Whole Body Periodic Acceleration on Blood Lactate and Recovery
AcidosisLacticWhole-body periodic acceleration (WBPA) is a new, non-invasive, and promising therapy for a diverse and growing list of disorders including cardiovascular disease 6. During WBPA, patients lie in the supine position on a bed that is capable of translating back and forth parallel to the ground, along the head-to-foot axis of the patient. Thus, this treatment is best described as a form of "passive exercise." The frequency of the translation (up to 180 cycles/minute; cpm) as well as the distance traveled (2-24mm) by the bed can be adjusted by the patient or health care professional. The science behind the therapeutic effects of WBPA still remains largely unknown. The objective of this study is to determine if WBPA may be used as an effective way to reduce lactic acid concentrations during recovery after intense exercise more rapidly than previously established methods.
Remote Ischemic Preconditioning During Cardiopulmonary Bypass
Lactic AcidosisThe objective of study is to detect effect of remote ischemic preconditioning on serum lactate levels during and after cardiac surgery with cardiopulmonary bypass in addition to its effect on cardiac and renal clinical outcomes.
Study of Blood Lactate Levels in Patients Treated With Antipsychotics
Movement DisordersLactic AcidosisBlood lactate levels in patients receiving typical or atypical antipsychotics have not been described in the literature. The goal of this study is to assess the dynamics of lactate levels in the blood from typical or atypical antipsychotics not confounded by prior antipsychotic treatments, the investigators conducted a prospective study of lactate levels in patients receiving antipsychotic medication. The investigators hypothesized that 6 months of treatment with haloperidol or olanzapine would result in a change in blood lactate levels and extrapyramidal side effects.
Study On the Role of Mitochondrial Dysfunction in the Pathogenesis of Metformin-associated Lactic...
Lactic AcidosisMetforminMetformin is the first line drug of choice for the treatment of type II diabetes. Lactic acidosis can develop as a side effect, especially when renal failure leads to drug accumulation. Lactic acidosis is usually attributed to an abnormal inhibition of hepatic lactate clearance. Growing evidence suggest that metformin can dose-dependently inhibit hepatocyte mitochondrial function. Whether a similar effect occurs in extra-hepatic human tissues remains unknown. The investigators hypothesize that mitochondrial dysfunction occurs during metformin intoxication even in tissues other than the liver, thus contributing to the development of lactic acidosis. The aim of this study is to investigate mitochondrial integrity in circulating platelets of patients with lactic acidosis due to metformin intoxication.
The Threshold of Serum Anion Gap as a Screening Tool for Organic Acidosis
Metabolic AcidosisCritical Illness4 moreBackground: The serum anion gap (AG) is commonly used as a screening tool for acid-base disorders. With modern laboratory techniques using ion-selective electrodes to measure the main electrolyte components of the AG, our definition high AG (HAGMA) should be reviewed. Aim: This study aims to assess the diagnostic value of AG and to determine a diagnostic threshold for HAGMA in a high-prevalence clinical setting. Method: Computerized extraction of anonymised data from electronic medical records was performed. A pre-defined criteria included all inpatients of an acute-care hospital who had measurements for organic acids (lactate, ketone or salicylate) paired with a serum urea, electrolyte and creatinine panel.