View clinical trials related to Hypotension.
Filter by:Hypotension after spinal anesthesia is associated with significant perioperative morbidity and mortality, especially in hypovolemic patients. Ultrasonographic measurement of internal jugular vein (IJV) has been recently shown as effective in predicting the intravascular volume status. The aim was to investigate the reliability of preanesthetic ultrasound measurements of IJV in predicting hypotension after spinal anesthesia.
The goal of this study is to evaluate if vasopressin can elevate systemic arterial blood pressures without having a significant effect on pulmonary arterial pressures. Because patients who have undergone Fontan procedures rely on low pressures across the pulmonary vascular bed to maintain cardiac output, vasoactive agents that concomitantly increase systemic and pulmonary pressures may have a deleterious effect in this specific patient population. Hypothesis: In patients with Fontan physiology, vasopressin will increase systemic BP by 20% above baseline, without increasing the transpulmonary gradient.
Comparision of Exposed Factors of Preoperative Hypertension and Intraoperative Controlled Hypotension on Postoperative Delirium in the Elderly under Radical Resection of Head, Neck and Maxillofacial Tumor
The purpose of this observational research study is to examine how point-of care ultrasound affects the workup and management of perioperative complications for specific clinical scenarios of low blood pressure (hypotension), low blood oxygen (hypoxemia), in the post- anesthesia care unit (PACU).
This will be a randomized study aiming at investigating the combination of a norepinephrine infusion and colloid preloading versus the combination of a norepinephrine infusion and crystalloid co-loading for the prevention of maternal hypotension during elective cesarean section
This will be a double-blind randomized study, aiming at investigating a fixed rate phenylephrine infusion versus a fixed rate norepinephrine infusion versus placebo in combination with co-hydration with colloids for the prevention of maternal hypotension in elective cesarean section
This is prospective randomised double blind study conducted in parturients planned for non-elective caesarean section under spinal anaesthesia. Glycopyrrolate group will receive 0.2 mg of Glycopyrrolate before start of phenylephrine infusion. Control group will receive 0.2 ml of Normal Saline before start of phenylephrine infusion. Total amount of vasopressors required i.e. ephedrine or phenylephrine will recorded in the form of phenylephrine equivalent during intraoperative period.
Neuraxial blockade such as spinal anaesthesia can cause severe hypotension due to pharmacological sympathectomy resulting in potential deleterious consequences for the patient. Prevention of this spinal anaesthesia induced hypotension is of utmost importance. Techniques currently in use for preventing hypotension include intravenous fluid prehydration, sympathomimetic drugs, and physical methods such as leg bindings and compression stockings. Midodrine is a direct acting α1-adrenoceptor agonist which causes venous and arterial vasoconstriction through stimulation of α1- receptors located in the vasculature. The aim of this study is to evaluate the efficacy and safety of prophylactic midodrine use with preoperative fluid hydration before spinal anesthesia in the prevention of hypotension in patients undergoing elective orthopedic surgery. We hypothesize that intraoperative hypotension would be less in patients given midodrine and intravenous fluid prehydration preoperatively before spinal anesthesia.
Hypotension is a very common consequence of the sympathetic vasomotor block caused by spinal anesthesia for cesarean section. Maternal symptoms such as nausea, vomiting and dyspnea frequently accompany severe hypotension, and adverse effects on the fetus, including depressed APGAR scores and umbilical acidosis, have been correlated with severity and duration of hypotension. Because hypotension is frequent, vasopressors should be used routinely and preferably prophylactically.
Prospective, multi-center, randomized, controlled clinical trial to study the safety and effectiveness of a novel plasma collection system software.