View clinical trials related to Hemodynamic Instability.
Filter by:In this prospective observational study investigators aim to seek for any possible correlation between the venous to arterial carbon dioxide difference (pCO2 gap) at the end of surgery and the percentage of time spent above a predefined threshold of stroke volume (SV) andn mean arterial pressure (MAP).
Prospective, randomized and controlled study who will be conducted at Maisonneuve-Rosemont hospital with the following objectives: To determine if an infusion of carbetocin over 10 minutes will reduce hemodynamic side effects, especially the peak of heart rate, in comparison to a rapid intravenous bolus (less than 2 seconds). To determine if an infusion of carbetocin will reduce the other side effects of duratocin in comparison to a rapid intravenous bolus. Study plans to enroll 70 adult patients scheduled to undergo elective cesarean delivery under spinal anesthesia. Half of the patient will receive Carbetocin 100 mcg intravenous as a bolus (less than 2 seconds) and the other half will receive Carbetocin 100 mcg intravenous infusion over 10 minutes.
The study aim is to investigate if preoperative volume bolus based on lean body weight could preserve mean arterial pressure during target controlled infusion of anaesthesia (TCI) or rapid sequence induction of anaesthesia (RSI) in non-cardiac, non-morbidly obese surgery.
Traditional methods for intravascular volume status assessment include physical examination, raised leg test, central venous pressure (CVP) and pulmonary artery catheters occlusion pressure (PAWP). Central venous pressure and pulmonary artery occlusion pressure are invasive and associated with significant complications. More recently, a number of less invasive techniques have been introduced, but they lack standardization and reliability. Ultrasonically, inferior vena cava collapsibility can detect hypovolemia non-invasively.
Background: Earlier treatment and resolution for patients with cerebral aneurysms is now possible due to earlier diagnosis. This observational study aims to evaluate the intraoperative cardiovascular parameters in patients with cerebral aneurysms undergoing endovascular therapy. Method: This is an observational prospective study. Patients ≥ 18 years old diagnosed with an unruptured cerebral aneurysm or subarachnoid hemorrhage (SAH) (Hunt & Hess grade I or II) undergoing endovascular treatment under general anesthesia between April 2015 and February 2017 were included. Non-invasive measurements of hemodynamic variables were collected at six time points during the procedure (T1 to T6). Statistical analysis was performed by using central tendency measures for quantitative variables and absolute / relative frequency measurements for qualitative variables.
The proposed research evaluates tissue oxygenation (StO2) as measured by resonance raman spectroscopy (RRS) in premature infants with and without patent ductus arteriosus (PDA). This is a prospective observational study of infants born at < 30 weeks of gestation. The primary aim of this study is to determine if the difference in pre- and post-ductal StO2 as detected by RRS is more significant in premature infants with PDA in comparison to infants without PDA. The secondary aim of this study is to determine if the difference in pre- and post-ductal StO2 as detected by RRS is more significant in infant who develop serious adverse events.
This research will be the first study for exosomes purified in blood and urine from septic patients who had multiple organ failures. Proteomics studies in exosomes from blood or urine specimens. Analyze autophage, and apoptosis related biomarkers of exosomes by bioinformatics. To find the correlations between exosomes biomarkers and hemodynamic parameters.
Measurement of arterial blood pressure is a basic monitoring in the perioperative setting. It is a standard monitoring to assure an adequate cerebral perfusion pressure and is a basic parameter of hemodynamic optimization. Until now standard methods for blood pressure measurement are non-invasive interval monitoring by arm cuff (Riva-Rocci) or direct, continuous and invasive by inserting an intraarterial catheter. This observational study will show, that a new non-invasive piezocapacitative-interlayer technology will make continuous blood pressure monitoring and non-invasive pulse contour analysis available.
Compared to single-dose spinal anesthesia, continuous spinal anesthesia using small titrated doses of local anesthetic, was safe, efficient and provided better hemodynamic profile in elderly patients. The aim of this study was to investigate the hemodynamic effects of continuous spinal anesthesia in elderly patients undergoing knee arthroplasty. Investigators use the FloTrac sensor/Vigileo haemodynamic monitoring system to assess modification blood pressure, stroke volume and cardiac output during anesthesia and specialy after every bolus of spinal anesthesia, after inflating the tourniquet and after putting it off. they recorded number of hypotension episodes, ephedrine bolus and consumption until 2 hours after the end of surgery.
This study compares two blood pressure targets and two oxygenation targets in the post-resuscitation care of comatose out-of-hospital cardiac arrets patients. Using a novel method the blood pressure-intervention is double-blinded. The oxygenation-intervention is open-label. As a subordinate study, the patients will be randomized 1:1 to active fever-control with an automated feedback temperature control-device for 36 or 72 hours following return of spontaneous circulation.