View clinical trials related to Hypotension.
Filter by:the study is designed to compare the effect of addition of oral Ivabradine, propranolol to general anesthesia aimed reduction in blood loss during functional endoscopic sinus surgery.
the investigators purpose is to predict hypotensive condition that can develop after general anesthesia induction by measuring the Tricuspid Annular Plane Systolic Movement (TAPSE), which is an echocardiographic parameter.
The purpose of this study is to investigate the suitable infusion dose of phenylephrine for prophylaxis against postspinal anesthesia hypotension in parturients with preeclampsia undergoing cesarean section.
The DAPA-HF trial demonstrated that dapagliflozin was able to reduce the risk of worsening heart failure events and cardiovascular death comparing to placebo in patients with reduced ejection fraction further to standard of care. However, hypotensive patients who generally have higher risks comparing to normotensive patients, were under represented in the DAPA-HF. The investigators aimed to evaluate clinical effects of dapagliflozin on hypotensive heart failure patients receiving chronic sacubitril/valsartan treatment.
Intra operative hypotension is a risk factor in pediatric anesthesia (McCann ME et al.Pediatr Anesth 2014; 24: 68-73). In summary, the study aims at examine if ultrasound assessment of the diameter and collapsibility index of the subclavian vein is correlated to fasting time and if they are correlated to the degree of hypotension seen post anesthesia induction in children undergoing general anesthesia.
Background and rationale: The best agent to prevent spinal-induced hypotension is still uncertain but norepinephrine showed fewer effects on heart rate and cardiac output. In septic patients norepinephrine has been shown to produce an "endogenous fluid challenge". Objective: We aim to assess if patients with impaired diastolic function (46% of pregnant women at term) are less able to maintain indexed cardiac output in response to norepinephrine infusion during spinal-induced vasoplegia. We also aim to assess if fetal wellbeing is related to maternal cardiac output during spinal anesthesia for cesarean delivery. Methods: We will assess by echocardiogram the diastolic function before surgery and will then start continuous non-invasive hemodynamic monitoring with a ClearSight® monitor (ClearSight®, Edwards Lifescience, Irvine, CA) and perform a fluid challenge to relate diastolic disfunction with fluid responsiveness. Hemodynamic monitoring will continue throughout the surgery. Norepinephrine infusion will start concomitantly to beginning of spinal anesthesia and will stop 5 minutes after uterotonic medication. Outcome: We aim to assess if patients with diastolic disfunction are less able to maintain cardiac output in response to norepinephrine infusion during spinal anesthesia induced vasoplegia. We also aim to assess if fetal wellbeing is related to maternal cardiac output during spinal anesthesia for cesarean delivery.)
The purpose of this study is to investigate the suitable infusion dose of norepinephrine for prophylaxis against postspinal anesthesia hypotension in parturients with preeclampsia undergoing cesarean section.
The purpose of this study is to investigate the efficacy and safety of norepinephrine for prophylaxis against postspinal anesthesia hypotension in parturients with preeclampsia undergoing cesarean section.
Intraoperative hypotension (IOH) is a rather common event during general surgery, with variable incidence that ranges between 5 and 99% based on the definition used. It is associated to significant complications including acute renal failure, myocardial damage, stroke and overall increased mortality, reason why the prevention and the reduction of hypotensive events through an appropriate proactive approach can potentially improve the patient's outcome. The Hypotension Prediction Index (HPI) is an algorithm derived from the analysis of the arterial waveform and it is expressed as an absolute value from 0 to 100. It has been demonstrated that the HPI is able to predict the occurrence of hypotensive events of patients undergoing major surgery under general anesthesia, providing also a guide for the appropriate treatment based on further calculated secondary hemodynamic variables that estimate patient's preload, cardiac contractility and afterload. Aim of this prospective randomized study is to compare the incidence of IOH during major gynecologic oncologic surgery among two groups of patients receiving standard hemodynamic monitoring versus HPI monitoring. The primary hypothesis is that hemodynamic management HPI-guided reduces the incidence, entity and duration of intraoperative hypotensive events, defined as mean arterial pressure (MAP) lower than 65 mmHg lasting more than one minute.
Study type: Prospective Observational trial Study design: Longitudinal Population: Preterm newborns <32 weeks gestational age Hypothesis: The inclusion of non-invasive physiological measures of cardiac output, peripheral perfusion and brain oxygenation (NIRS) for preterm neonates is feasible and reveals additional information on the hemodynamic status compared to blood pressure alone. These measurements can improve the ability to rapidly identify those infants who might benefit from intervention and are correlated with short term clinical outcomes.