View clinical trials related to Hemodynamic Instability.
Filter by:This proposal will measure the effects of mannitol administration versus placebo in hypotensive-prone, adult, maintenance hemodialysis patients with respect to changes in patient symptoms and blood pressure stability.
The transpulmonary thermodilution is commonly used in patients with acute circulatory failure in the intensive care unit and for monitoring surgical patients at high risk. However, the incidence of complications and their risk factors in patients monitored by transpulmonary thermodilution has not been completely reported yet.
Beta-blockers are useful tools for the prevention of hemodynamic instability in the manipulation of airways. The main objective of the present study is to evaluate the effectiveness of using esmolol in attenuating hemodynamic responses at the time of tracheal extubation, by assessing the incidence of tachycardia in relation to placebo.
The patient's clinical care will not be altered apart from an the use of a non-invasive monitor for a short time, without any biological sample acquisition, or follow-up. This is low risk. The device works through a complex pressure measurement in the fingers and by slightly squashing the fingers it can cause minor impairments to circulation. This represents a very small risk. To mitigate this risk the investigators will exclude patients with impaired circulation to the fingers and fingers will be monitored. The approach is necessarily on the day of surgery and for many people this is an anxious time. The investigators have a lot of experience of approaching patients on the day of surgery for providing consent for observational studies - the investigators use caution and sensitivity. The investigators do not approach patients who the clinical team consider anxious or where there is significant pressure on time.
In this trial the investigators want to examine if there is any difference in hemodynamic stability when giving equipotent prophylactic injections of ephedrine 0,1 mg/kg, phenylephrine 1 microg/kg, norepinephrine 0,1 microg/kg or sodium chloride (NaCl) 9 mg/ml during induction of general anesthesia with propofol and remifentanil.
during cardiopulmonary resuscitation, an important element of the procedure is to achieve optimal organ perfusion. For this purpose, high quality chest compressions is one of the basic elements of the procedure. however, similarly as in the case of hypovolemic shock, elevation of the lower limbs may be helpful. The study is a randomized cross-over study and includes the effect of lower limb elevation on hemodynamic parameters in healthy participants.
The present study aims to compare the hemodynamic response during laryngoscopy and orotracheal intubation using continuous infusion of lidocaine and esmolol in patients undergoing general anesthesia.
To monitor the changes in central and peripheral monitors/waveforms during gradual hypovolemia induced by lower body negative pressure in healthy volunteers.
This study compares the actual standard of care with a new protocol to guide hemodynamic optimization during major abdominal surgery, which is more tailored on patient real needs. During general anesthesia metabolic needs of the body are markedly reduced and increase in CO may not be necessary. In addition, excessive fluid administration has been related to worse post-operative outcomes. We divide patients into three groups: the standard treatment group, the NICE protocol group and the intervention group. In this group we use the v-aCO2/CaO2-CvO2 as marker of tissue ability to increase their oxygen consumption in response to increased O2 delivery, and based on this index the administration of fluid. The principal aim is to optimize functional hemodynamics in order to reduce the fluid balance at the end of the surgery.
This study aims to describe the ratio of the diameter of inferior vena cava to the common femoral vein measured by ultrasonography in critically ill patients with shock, and to evaluate the potential link between this ratio and the existence of intra-abdominal disease.