View clinical trials related to Hypotension.
Filter by:Post induction hypotension is closely related to postoperative complications. Patients are at high risk of hypotension due to preexisting hypovolemia and the vasodilatory effects of induction agents. Ultrasonographic measurement of the Carotid artery corrected flow time and internal jugular vein collapsibility index may predict post induction hypotension.
This cross-sectional blinded study was planned to be conducted in Aydın Gynecology and Pediatrics Hospital between June 2023 and September 2023. The study was designed for adult pregnant female cases between the ages of 20 and 35. Patients with Class II American Society of Anesthesiologists (ASA) physical status, scheduled for elective cesarean section under subarachnoid block and who gave informed consent were planned to be included in the study. Patients with emergencies and uncontrolled systemic comorbidities (e.g., cardiovascular, respiratory or renal) and patients with expected massive intraoperative loss (i.e., placenta accreta or placenta previa) are planned to be excluded from the study. Also, cases receiving intravenous fluid preload will be excluded.
When hypotension is related to epidural placement, this can occur within 15-60 minutes after placement. The purpose of this study is to build upon this preliminary work and to use a randomized controlled trial to examine the effectiveness of leg elevation in preventing hypotension among a larger sample of laboring women who receive an epidural analgesia. This study will use a randomized, non-blinded, controlled design with two arms: Arm 1: Patient will be put in a left tilt position with her hip on a wedge and both legs elevated on a peanut ball. She'll remain in this position for approximately 40 minutes. Arm 2: Patient will be put in a left tilt position with her hip on a wedge and no leg elevation. She'll remain in this position for approximately 40 minutes.
After the approval of the Ethics Committee, 120 patients were planned to be included in the study between 15.06.2022 and 15.01.2023. Women who underwent elective cesarean delivery under spinal anesthesia were randomized to the supine position, 15° left-lateral tilt position, or 30° left-lateral tilt position. The position will be changed to supine before the incision. It was planned to recruit 40 patients from each group, with a total of 120 patients. Anesthetic management was standardized and fluid administration with 10 mL/kg isotonic was planned. Hypotension (systolic blood pressure [SBP] reduction > 20% baseline or SBP <90 mm Hg) will be treated with intravenous bolus ephedrine based on maternal heart rate. The primary outcome is planned to include maternal SBP in 15 minutes of anesthesia induction, the amount of vasoactive drug administered before the end of surgery, and the incidence of hypotension during cesarean delivery.
This prospective study will analyze the need for deliberate hypotensive anesthesia (DHA) during orthognathic surgery when tranexamic acid (TXA) is administered. DHA has been proven to be effective although it comes with multiple risks related to organ hypoperfusion including kidney injury, stroke, and cardiac ischemia. Therefore, it may be potentially safer for patients to avoid deliberate hypotensive anesthesia if TXA alone adequately controls blood loss and provides adequate surgical site visualization.
The use of peri-arrest bolus epinephrine (PBE) has emerged as a rescue strategy for life-threatening hypotension in pediatric intensive care units (ICU) despite scant published data supporting its use in this setting. As optimal dosing of PBE in this population is unclear, we aim to determine if an initial dose of 0.5 mcg/kg versus 1.0 mcg/kg yields differences in hemodynamic outcomes. The EPI Dose Study is a single-center, prospective, randomized, double-blind, dose-effect trial measuring systolic blood pressure (SBP) before and after PBE is given. We hypothesize that the 1.0 mcg/kg group will have more robust increases in SBP.
A common therapeutic intervention after spinal cord injury (SCI) is prolonged standing in a standing frame. For people with SCI, standing for 40 minutes or more, three to four times weekly improves several health-related issues including well-being, circulation, skin integrity, reflex activity, bowel and bladder function, digestion, sleep, pain, and fatigue. However, a person who experiences orthostatic hypotension (OH)-defined as a decrease of 20mm hg in systolic blood pressure or a decrease of 10mm hg in diastolic pressure within 3 minutes of standing from a sitting or supine position-secondary to SCI may not tolerate positioning in a standing frame, thus resulting in a loss of access to these health benefits. OH is common for people with SCI. It results from central nervous system dysregulation causing pooling of blood in the lower extremities that can lead to dizziness, light-headedness, blurred vision, weakness, fatigue, nausea, palpitations, headache, and/or syncope. Although an array of physical and pharmacologic interventions are available to people in the general population for managing OH, few such interventions have been evaluated for use by people with SCI, especially when the level of injury is C5 or above. One possible intervention that may be effective for people with OH secondary to SCI is functional electrical stimulation (FES) because its application results in a dose-dependent increase in blood pressure. An unanswered question is whether the placement of FES electrodes on various parts of the body has differential effects. Therefore, the purpose of this study is to evaluate blood pressure responses among people with OH secondary to cervical SCI when receiving FES intervention involving the placement of electrodes in three different positions as well as when receiving no FES intervention during tilt table sessions. The selected positions for electrode placement are: (a) the calves, (b) the quads and abdominals, and (c) the quads, abdominals, and calves. The researchers hypothesize that FES intervention, regardless of placement, will result in better control of OH than no FES intervention and that no significant blood pressure difference will occur across the three FES placements.
The purpose of this study is reduce episodes of intradialytic hypotension, low blood pressure during a hemodialysis session, in patients with End Stage Renal Disease (ESRD). Recruitment will take place on the clinic level rather than the patient level.
This is a research study to test the application of FDA-approved, non-invasive device (NICaS) that measure the performance of your heart during HD treatment.
Continuous pulse oximetry monitoring is the standard of care in critically ill patients in emergency departments, operating rooms and intensive care units. In patients with poor peripheral perfusion (low blood flow) due to peripheral vascular disease, low body temperature, or shock and the use of medications to raise the blood pressure, clinicians have difficulty obtaining an accurate measurement. This study compares the accuracy of forehead oximetry sensors to nasal alar sensors to lab oximetry measures and on the rate of device related pressure ulcers with both.