View clinical trials related to Hypotension.
Filter by:This is an observational study to evaluate the role of a Bed side Focus assessed Transthoracic Echocardiography (FATE) in identifying the patients at a potential risk of developing hypotension secondary to general anesthesia induction using the FATE parameters like velocity time integral ( VTI ), Inferior venacava diameter , Caval index and Left ventricular end end diastolic area.
The purpose of this study is to learn more about the effects of midodrine and droxidopa, two medications used for the treatment of orthostatic hypotension (low blood pressure on standing), on the veins of the abdomen of patients with autonomic failure. The study will be conducted at Vanderbilt University Medical Center, and consists of 2 parts: a screening and 2 testing days. The total length of the study will be about 5 days. About 34 participants will be screened for the study.
Propofol is an intravenous anaesthetic agent used for both induction and maintenance of anaesthesia. An important adverse effect is the significant fall in blood pressure. The current clinical study will be done to determine the efficacy of leg elevation and wrapping in reducing the incidence and severity of propofol induced hypotension in patients undergoing general anaesthesia.
Post-reperfusion syndrome and ischemia-reperfusion insult are a common well-known complication in liver transplantation. Several trials investigated variables that my contribute to the generation of these two complications for reducing their incidence and magnitude. The investigators will investigate the effect of acute conditioning of the recipients circulation to the vasoactive mediators in the graft as well as the congested intestine through intermittent purging of graft contents into the patient's systemic circulation in living donor liver transplantation.
Aims: To compare the rates of hypotension in patients with malignancy-related ascites undergoing abdominal paracentesis with and without prophylactic intravenous albumin infusion Methodology: Patients with symptomatic ascites secondary to underlying malignancy admitted to medical oncology inpatient service who require abdominal paracentesis will be enrolled. Patients with known portal hypertension based on SAAG (>11.1 mmol/L) will be excluded. Eligible patients are randomized 1:1 to two groups. During drainage of ascites fluid, one group will receive intravenous albumin infusion (50 ml/Litre of ascitic fluid drained), whereas the other group will not receive intravenous albumin infusion. Baseline parameters along with routine 4 hourly monitoring of blood pressure will be done. Episodes of hypotension (fall in SBP > 20 mmHg) will be compared between these two groups and significance tested using the chi-square test. Clinical significance: Ascites often occurs in the setting of advanced malignancy and drainage of ascites has been proven to provide symptomatic relief in this patient population with relatively short life expectancy. The use of intravenous albumin infusion is loosely extrapolated from studies in patients with liver cirrhosis undergoing abdominal paracentesis. To date, there have been no standard guidelines to guide practice and no studies looking at the use of intravenous albumin in this population. As the mechanisms of ascites are different in different malignancies, the indication of intravenous albumin is uncertain and perhaps unnecessary in this setting. We hope to understand more about the rates of hypotension during abdominal paracentesis in this population and to generate systematic data to guide clinical practice in this area.
Fluid resuscitation is the most effective treatment of shock. Isotonic crystalloid solution is the current recommended initial fluid resuscitation. However, this kind of fluid has high volume of distribution and may require large volume administration before achieve therapeutic goal of shock reversal. There are rising concern about the delay in shock reversal and adverse consequences of large amount volume of fluid therapy. Colloid fluid have been used as the alternate fluid resuscitation, aiming to limit the volume of fluid resuscitation and promote shock reversal. Whether colloid infusion can improve shock reversal rate and decrease complication associated with fluid resuscitation, had inconclusive information.
This clinical study is to observe the improvement of MHD (maintenance hemodialysis) patients, quality of life，after applying therapy combining Auriculotherapy and Shengmai capsule. As a compliment to each other, Traditional Chinese Medicine and Modern Medicine form a joint and help improving life quality of MHD patients. Through the therapy, MHD patients, symptoms of thirst are improved, the incidence of intradialytic hypotension is reduced, the intake of water and sodium is lessen and the weight gain during dialysis is controlled, which consequently reduce cardiovascular and cerebrovascular complications and eventually reduce the mortality of MHD patients. Aiming to improve patients, thirst symptom and reduce the incidence of intradialytic hypotension, this study prospectively followed 144 MHD patients using multicenter prospective randomized crossover controlled clinical studies, using KT/V, URR, improvement of thirst, blood pressure and cognitive assessment as observational index. Multiple questionnaire surveys are conducted to understand patients, life quality from different angle. The use of Auriculotherapy is simple and effective and Shengmai capsule conforms to patients, syndrome, which is consistent with TCMs principle of "syndrome differentiation and treatment"and the theory of preventive treatment. The study not only expends the use of TMC in hemodialysis treatment, but also suggests a set of easy therapeutic schedules to improve the quality of life in patients receiving hemodialysis treatment.
The purpose of this study is to determine whether continuous non-invasive arterial pressure (CNAP) monitoring is beneficial to maintain maternal hemodynamic stability and improve the outcomes of maternal and fetal comparing with intermittent oscillometric non-invasive arterial pressure (NIAP)measurement during spinal anaesthesia for cesarean section .
The beach chair position for shoulder operation induces hypotension during general anesthesia. Hypotension is induced by decreased preload and contractility due to anesthesia. Masimo is a pulse oximetry which shows pleth variability index noninvasively. The pleth variability may predict the hypotension during beach chair position.
Hypotension is frequently encountered after induction of general anesthesia. It can be pronounced in elderly patients and can require administration of vasopressor agents including ephedrine and phenylephrine. Intraoperative hypotension, especially prolonged episodes, can contribute to an increase in morbidity and mortality in the postoperative period as suggested by some former studies. The investigators hypothesize that fentanyl can contribute to the decrease in blood pressure (BP) that is seen after induction of general anesthesia in older patients. This hypotension may be due to fentanyl blocking effect on the sympathetic nervous system. This study will be the first one to examine the effect of fentanyl administration on blood pressure in elderly patients with induction of general anesthesia prior to the start of surgery. If the study shows that fentanyl contributes to hypotension during this period, it may lead to a change in practice and better patient outcomes and mortality rates.