View clinical trials related to Hypotension.
Filter by:After injection of the spinal anesthetic drug, women will be allowed to lie down immediately (0-30 sec) or after three minutes (180 sec) of sitting. The incidence of maternal hypotension and fetal umbilical cord blood pH will be recorded.
Hypotension often happens immediately after anesthetic induction. Particularly in 5-10 minutes after anesthetic induction it is reported to happen more frequently. Patients may have preexisting hypovolemia resulting from dehydration and impaired compensatory responses, which increase the risk. However, it is still challenging to assess intravascular volume status in spontaneously breathing patients before anesthetic induction. Recently, the measurement of corrected flow time in carotid artery was introduced as quite useful, simple and noninvasive for the evaluation of circulating blood volume. The aim of this study is to evaluate whether corrected carotid artery flow time as determined by ultrasonography in spontaneously breathing patients before general anesthesia can predict hypotension after induction.
The purpose of this study is to determine whether midodrine administration decreases duration of intravenous vasopressors and intensive care unit length of stay for patients in septic shock.
One in ten patients on rivaroxaban therapy have dizziness and reductions in blood pressure. The investigators intend to monitor the ambulatory blood pressure of such patients in order to assess whether this is a true haemodynamic effect.
This research investigated the heart rate variability (HRV) and stroke patients' orthostatic hypotension in hospitalized stroke patients accompanied with dizziness at varied tilting angle controlled by tilting table with intelligent biosensor.
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).
Three different regimens of phenylephrine are being evaluated to see if one is superior over the other in the maintenance of cardiac output while keeping normotension and/or treating hypotension experienced when receiving spinal anesthesia for cesarean delivery.
The primary purpose of this investigation is to validate the performance and safety of the Investigational Device (ID) against a validated and legally cleared device for measuring Blood Pressure (BP). The secondary purpose is to validate the performance of the ID over a period of 24 hours against a validated and legally cleared device for Ambulatory Blood Pressure Monitoring (ABPM).
In the proposed study, the investigators examine in older adults with Type 2 diabetes the impact of beginning insulin therapy on the orthostatic drop in blood pressure as well as the response of arterial blood pressure and Doppler measures of cerebral blood flow during upright tilt. The investigators hypothesize that in older adults with Type 2 diabetes, the cardiovascular effects of insulin would precipitate or worsen orthostatic intolerance not present at baseline.
The investigators thus propose to use an innovative randomized effectiveness trial design to test the theory that early automatic identification of a ¡ Low Systolic Blood Pressure¡± clinical condition and decision-support alerts will prompt earlier hemodynamic support and a consequently reduce the duration of such conditions. Specifically, the investigators will test the hypothesis that providing DSS alerts in regards to hypotension reduces the duration of hypotensive episodes. The core of the investigators study will be an existing electronic anesthesia record and smart-alarm decision-support system. All patients undergoing surgery at Hillcrest will be randomly assigned to routine care or to DSS support. In patients assigned to DSS support, a systolic blood pressure less than 80 mmHg will generate a warning within three minutes after detection. Clinicians will be free to act on the alert, ignore the alert, or to consider the provided information without acting on it. The randomization, complete anesthesia record, detailed record of hypotensive events, alerts provided, clinician responses, and SAP response, will be captured by the investigators electronic record-keeping system. The investigators primary outcome will be the duration of time the patient has a systolic blood pressure less than 80 mmHg. Secondary outcome will be duration of hospitalization. The investigators will assess the effect of the alert on the primary outcome of time to SBP returning to above 80 mmHg using survival analysis, with time to event censored (and considered a non-event) at either the end of surgery or end of monitoring if patient did not return to above 80 mmHg.