View clinical trials related to Hypotension.
Filter by:The purpose of this study is to use the photo-plethysmographic [PPG] waveform signal to guide the dialysis and ultrafiltration [UF] of chronic maintenance hemodialysis patients, and to further the investigators understanding of homeostasis in hemodialysis. The investigators hypothesize that the signals generated from the PPG device along with traditional monitoring and nursing judgment, will allow experienced, oriented staff to anticipate hemodynamic instability, intervene to prevent or mitigate the intradialytic hypotention [IDH], forestalling the onset of non-facilitating compensatory reflexes that preclude the patient from achieving an appropriate post-dialysis weight consistent with euvolemia. Furthermore, it is hypothesized that the nephrologist and staff will be able to wean patients from anti-hypertensive medications and craft patient specific dialysis orders and UF profiles that achieve consistent, comfortable treatment to appropriate end points. The study aims include: Aim 1: To confirm the temporal sequence of PPG signals and changes in BP in routine hemodialysis. Aim 2: To refine further the predictive algorithms of PPG, augmented with continuous cardiac event monitoring (pre-intra-post hemodialysis) Aim 3: To develop targeted interventions to reverse the cardiovascular stress indicated by the PPG and to maintain perfusion. Aim 4: To develop care paths approved by the medical staff and primary care nephrologist allowing RNs to respond to signals from the PPG.
Spontaneous intracranial hypotension (SIH) is an infrequent disease, related to a leak of cerebrospinal fluid. There are not controlled studies for this treatment.The main of this study is to demonstrate the superiority of the Trendelenburg position compared to supine position during 24 hours after an epidural blood patch for a spontaneous intracranial hypotension
Hypotension is the most common complications after spinal anesthesia especially in pregnant patients who undergoing cesarean section. Position during spinal anesthesia may be altering the hemodynamic. For right lateral decubitus, the enlarged uterus compresses inferior vena cava that may decrease venous return and cardiac output. This leads to hypotension.The hypothesis is the right lateral position during spinal anesthesia in pregnant women will be had hemodynamic changing more than the left lateral position. This objective is to compare hemodynamic change between left and right lateral position during spinal anesthesia in pregnant women undergoing cesarean section.
The goal of this study is to assess decision making skills of emergency physicians when dealing with hypotensive patients. The hypothesis is that decisions made based on physical exam and vital signs regarding fluid resuscitation by emergency physicians are not statistically equivalent to those that would be made based on the use of a non-invasive CVP measurement
Patients undergoing anesthesia for non-cardiac surgery will be randomized to either having their anesthesia team alerted or kept blinded to extended periods of less than normal blood pressure with the goal of studying if providing these alerts leads to improved outcome after surgery (lower risk of death or complication in the days and weeks following surgery).
Intradialytic hypotension (IDH) is a most frequent complication of hemodialysis (HD) and may contribute to cardiovascular events and high mortality. The etiology of IDH is multifactorial; therefore, it remains a challenging problem in the management of HD patients. Because moxibustion (MO) at specific points can influences hemodynamics, we hypothesize that Tianjiu (auto-MO) at the traditionally used meridian points will reduce the severity of hypotension in patients who undergo HD.
The purpose of this study is to find out the predictability of the pulse pressure variation during spontaneous ventilation on the incidence of hypotension during induction of anesthesia.
Maternal hypotension after spinal anesthesia in parturients undergoing cesarean section is a very common problem leading to several complications to both patients and their babies. It can cause maternal discomfort, lightheadedness, nausea and vomiting. The most important complication is the decreasing blood flow to babies; which may lead to fetal acidosis. Many interventions has been studied in order to prevent hypotension after spinal anesthesia in cesarean section e.g., fluid loading: colloid vs crystalloid, medications: ephedrine, phenylephrine, and metaraminol, etc. The recent study showed ondansetron (the antiemetic drug) can be effectively used to prevent hypotension after spinal anesthesia in normal patients or parturients. The action of ondansetron is believed to inhibit Bezold-Jarish reflex. This aim of this study is to compare the efficacy of ephedrine and ondansetron in the prevention of maternal hypotension after spinal anesthesia in cesarean section.
The overall goal is to evaluate the predictive accuracy of a measure of autoregulatory adequacy derived from CVInsight and compare it with other measures in recognizing hypotensive events during hemodialysis..
Primary objective: To compare the decrease in systolic blood pressure between hydration and venous contention when switching to a standing position. Hypothesis in that hydration is better than venous contention. Secondary objective: To evaluate the effect of hydration on lowering systolic blood pressure during the passage standing in elderly patients with orthostatic hypotension. Inclusion criteria: Patient aged over 75 years old with orthostatic hypotension proved to 1 and / or 3 min